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JP6928791B2 - Vibration driver - Google Patents

Vibration driver Download PDF

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JP6928791B2
JP6928791B2 JP2018524979A JP2018524979A JP6928791B2 JP 6928791 B2 JP6928791 B2 JP 6928791B2 JP 2018524979 A JP2018524979 A JP 2018524979A JP 2018524979 A JP2018524979 A JP 2018524979A JP 6928791 B2 JP6928791 B2 JP 6928791B2
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connecting portion
magnet
vibration
coil
fixing portion
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JPWO2018003394A1 (en
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藤本　圭祐
圭祐 藤本
祐史 荻野
祐史 荻野
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Panasonic Intellectual Property Management Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Description

本開示は、振動ドライバに関する。 The present disclosure relates to a vibration driver.

特許文献１には、振動ドライバとしての複合振動装置を備える骨伝導スピーカが開示されている。開示される複合振動装置では、ボイスコイルが設置された振動板と、磁石に設置された振動伝導シートとが、互いに係合しパネルに接続されている。骨伝導スピーカは、パネルによって外部に接続され、ボイスコイルが発生する振動を人骨に伝える。 Patent Document 1 discloses a bone conduction speaker including a composite vibration device as a vibration driver. In the disclosed composite vibration device, a diaphragm on which a voice coil is installed and a vibration conduction sheet installed on a magnet are engaged with each other and connected to a panel. The bone conduction speaker is connected to the outside by a panel and transmits the vibration generated by the voice coil to the human bone.

特表２０１５−５０５２０４号公報Japanese Patent Application Laid-Open No. 2015-505204

本開示は、相対的に可動であるボイスコイル、磁石及びパネルを支持する振動板及び振動伝導シートによる支持構造を簡易にする振動ドライバを提供する。 The present disclosure provides a vibration driver that simplifies a support structure with a diaphragm and a vibration conduction sheet that support a relatively movable voice coil, magnet and panel.

本開示の一態様における振動ドライバは、コイルと、マグネットと、コイル及びマグネット間の振動を伝達する振動伝達板と、コイル、マグネット及び振動伝達板を支持する支持部材とを備える。支持部材は、マグネットに接続される第１の接続部と、振動伝達板に接続される第２の接続部と、コイルに接続される第３の接続部と、第１の接続部、第２の接続部及び第３の接続部を互いに連結し且つ弾性を有する連結部とを含む。第１の接続部、第２の接続部及び第３の接続部は、横並びに且つ平面的に配置される。 The vibration driver in one aspect of the present disclosure includes a coil, a magnet, a vibration transmission plate that transmits vibration between the coil and the magnet, and a support member that supports the coil, the magnet, and the vibration transmission plate. The support member includes a first connection portion connected to a magnet, a second connection portion connected to a vibration transmission plate, a third connection portion connected to a coil, a first connection portion, and a second connection portion. Includes a connecting portion of the above and a connecting portion that connects the third connecting portion to each other and has elasticity. The first connecting portion, the second connecting portion, and the third connecting portion are arranged side by side and in a plane.

本開示の別の態様における振動ドライバは、コイルと、マグネットと、コイル及びマグネット間の振動を伝達する振動伝達板と、コイル、マグネット及び振動伝達板を支持する支持部材とを備える。支持部材は、マグネットに接続される第１の接続部と、振動伝達板に接続される第２の接続部と、コイルに接続される第３の接続部と、第１の接続部、第２の接続部及び第３の接続部を互いに連結し且つ弾性を有する連結部とを一体的に含む。第１の接続部、第２の接続部及び第３の接続部は、横並びに配置される。 The vibration driver in another aspect of the present disclosure includes a coil, a magnet, a vibration transmission plate that transmits vibration between the coil and the magnet, and a support member that supports the coil, the magnet, and the vibration transmission plate. The support member includes a first connection portion connected to a magnet, a second connection portion connected to a vibration transmission plate, a third connection portion connected to a coil, a first connection portion, and a second connection portion. The connection portion of the above and the third connection portion are connected to each other and include an elastic connecting portion integrally. The first connection, the second connection and the third connection are arranged side by side.

本開示における振動ドライバによれば、支持構造を簡易にすることが可能になる。 According to the vibration driver in the present disclosure, the support structure can be simplified.

図１は、実施の形態１に係る振動ドライバを斜め上方から見た斜視図である。FIG. 1 is a perspective view of the vibration driver according to the first embodiment as viewed from diagonally above. 図２は、図１の振動ドライバの分解斜視図である。FIG. 2 is an exploded perspective view of the vibration driver of FIG. 図３は、図１の振動ドライバの一部が切断されて内部が見えるようにされた状態を示す斜視図である。FIG. 3 is a perspective view showing a state in which a part of the vibration driver of FIG. 1 is cut so that the inside can be seen. 図４は、図１の振動ドライバの外ヨークの径方向に沿った振動ドライバの断面を方向ＩＶに見た断面側面図である。FIG. 4 is a cross-sectional side view of the cross section of the vibration driver along the radial direction of the outer yoke of the vibration driver of FIG. 1 as viewed in the direction IV. 図５は、図２の支持部材の平面図である。FIG. 5 is a plan view of the support member of FIG. 図６は、図２の振動伝達板を拡大した斜視図である。FIG. 6 is an enlarged perspective view of the vibration transmission plate of FIG. 図７は、実施の形態２に係る振動ドライバを斜め上方から見た斜視図である。FIG. 7 is a perspective view of the vibration driver according to the second embodiment as viewed from diagonally above. 図８は、図７の振動ドライバの分解斜視図である。FIG. 8 is an exploded perspective view of the vibration driver of FIG. 7. 図９は、図７の振動ドライバの一部が切断されて内部が見えるようにされた状態を示す斜視図である。FIG. 9 is a perspective view showing a state in which a part of the vibration driver of FIG. 7 is cut so that the inside can be seen. 図１０は、図７の振動ドライバの外ヨークの径方向に沿った振動ドライバの断面を方向Ｘに見た断面側面図である。FIG. 10 is a cross-sectional side view of the cross section of the vibration driver along the radial direction of the outer yoke of the vibration driver of FIG. 7 as viewed in the direction X. 図１１は、図８の支持部材の平面図である。FIG. 11 is a plan view of the support member of FIG. 図１２は、図８の振動伝達板の平面図である。FIG. 12 is a plan view of the vibration transmission plate of FIG. 図１３は、変形例に係る支持部材の平面図である。FIG. 13 is a plan view of the support member according to the modified example. 図１４は、本開示の振動ドライバの適用例を示す斜視図である。FIG. 14 is a perspective view showing an application example of the vibration driver of the present disclosure.

以下、適宜図面を参照しつつ、実施の形態を詳細に説明する。但し、必要以上に詳細な説明は省略する場合がある。例えば、既によく知られた事項の詳細説明や実質的に同一の構成に対する重複説明を省略する場合がある。これは、以下の説明が不必要に冗長になるのを避け、当業者の理解を容易にするためである。また、以下の実施の形態の説明において、略平行、略直交のような「略」を伴った表現が、用いられる場合がある。例えば、略平行とは、完全に平行であることを意味するだけでなく、実質的に平行である、すなわち、例えば数％程度の差異を含むことも意味する。他の「略」を伴った表現についても同様である。なお、発明者らは、当業者が本開示を十分に理解するために添付図面及び以下の説明を提供するのであって、これらによって請求の範囲に記載の主題を限定することを意図するものではない。 Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed explanation than necessary may be omitted. For example, detailed explanations of already well-known matters and duplicate explanations for substantially the same configuration may be omitted. This is to avoid unnecessary redundancy of the following description and to facilitate the understanding of those skilled in the art. Further, in the following description of the embodiment, expressions with "abbreviations" such as substantially parallel and substantially orthogonal may be used. For example, substantially parallel means not only completely parallel, but also substantially parallel, that is, including a difference of, for example, about several percent. The same applies to other expressions with "abbreviations". It should be noted that the inventors provide the accompanying drawings and the following description in order for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims by these. No.

（実施の形態１）
［１−１．振動ドライバ］
以下、図１〜図４を参照しつつ、実施の形態１に係る振動ドライバ１００を説明する。なお、図１は、実施の形態１に係る振動ドライバ１００を斜め上方から見た斜視図である。図２は、図１の振動ドライバ１００の分解斜視図である。図３は、図１の振動ドライバ１００の一部が切断されて内部が見えるようにされた状態を示す斜視図である。図４は、図１の振動ドライバ１００の外ヨーク４の径方向に沿った振動ドライバ１００の断面を方向ＩＶに見た断面側面図である。(Embodiment 1)
[1-1. Vibration driver]
Hereinafter, the vibration driver 100 according to the first embodiment will be described with reference to FIGS. 1 to 4. Note that FIG. 1 is a perspective view of the vibration driver 100 according to the first embodiment as viewed from diagonally above. FIG. 2 is an exploded perspective view of the vibration driver 100 of FIG. FIG. 3 is a perspective view showing a state in which a part of the vibration driver 100 of FIG. 1 is cut so that the inside can be seen. FIG. 4 is a cross-sectional side view of the cross section of the vibration driver 100 along the radial direction of the outer yoke 4 of the vibration driver 100 of FIG. 1 as viewed in the direction IV.

振動ドライバ１００は、外部の対象物と接触し且つ振動ドライバ１００が発生する振動の一例としての振動加振力を対象物に伝達する、円板状の振動伝達板１を備えている。さらに、振動ドライバ１００は、円筒状のコイル２と、コイル２の内側に配置される円柱状のマグネット３と、振動伝達板１、コイル２及びマグネット３を支持し且つ相互に連結する円板状の支持部材１０とを備えている。振動伝達板１は、例えば、ポリカーボネート等の樹脂のような所定の機械的強度を有する材料で作製されている。コイル２は、例えば、円筒状の芯材の周りに巻き線を巻回することによって形成される。マグネット３は、例えば、永久磁石であるが、電磁石であってもよい。支持部材１０は、弾性を有する部材であり、例えば、板ばねである。支持部材１０を形成する板ばねは、展延性及び耐疲労性を有するリン青銅等の金属材料で作製され得る。支持部材１０は、樹脂等の弾性を有する材料で作製されてもよい。 The vibration driver 100 includes a disk-shaped vibration transmission plate 1 that comes into contact with an external object and transmits a vibration excitation force as an example of the vibration generated by the vibration driver 100 to the object. Further, the vibration driver 100 has a cylindrical coil 2, a cylindrical magnet 3 arranged inside the coil 2, and a disk shape that supports and connects the vibration transmission plate 1, the coil 2, and the magnet 3 to each other. The support member 10 is provided. The vibration transmission plate 1 is made of a material having a predetermined mechanical strength, such as a resin such as polycarbonate. The coil 2 is formed, for example, by winding a winding around a cylindrical core material. The magnet 3 is, for example, a permanent magnet, but may be an electromagnet. The support member 10 is an elastic member, for example, a leaf spring. The leaf spring forming the support member 10 can be made of a metal material such as phosphor bronze having malleability and fatigue resistance. The support member 10 may be made of an elastic material such as resin.

さらに、振動ドライバ１００は、マグネット３にこれを挟持するように組み付けられる外ヨーク４及び内ヨーク５を備えている。有底円筒状の外ヨーク４及び円板状の内ヨーク５は、磁性を有する材料で作製され、例えば、強磁性ステンレス鋼で作製される。内ヨーク５は、その一方の平坦面をマグネット３の一方の平坦面に当接して配置され、外ヨーク４は、その底部を形成する平坦な底壁部４ａの内側表面をマグネット３の他方の平坦面に当接して配置される。外ヨーク４の筒状の周壁部４ｂは、マグネット３及び内ヨーク５の周囲を囲み、マグネット３の円筒状の外周面３ａ及び内ヨーク５の円筒状の外周面５ａと対向して延在する。 Further, the vibration driver 100 includes an outer yoke 4 and an inner yoke 5 that are assembled to the magnet 3 so as to sandwich the magnet 3. The bottomed cylindrical outer yoke 4 and the disk-shaped inner yoke 5 are made of a magnetic material, for example, made of ferromagnetic stainless steel. The inner yoke 5 is arranged so that one flat surface of the inner yoke 5 is in contact with one flat surface of the magnet 3, and the outer yoke 4 has the inner surface of the flat bottom wall portion 4a forming the bottom portion of the magnet 3 with the other flat surface of the magnet 3. It is placed in contact with a flat surface. The tubular peripheral wall portion 4b of the outer yoke 4 surrounds the magnet 3 and the inner yoke 5, and extends so as to face the cylindrical outer peripheral surface 3a of the magnet 3 and the cylindrical outer peripheral surface 5a of the inner yoke 5. ..

互いに組み付けられたマグネット３、外ヨーク４及び内ヨーク５は、これらの円柱又は円筒の軸心を通って貫通する連結シャフト６によって、支持部材１０に固定される。内ヨーク５は、内ヨーク５と支持部材１０との間に介在してこれらを互いに離す円筒状のスペーサ７を介して、支持部材１０と隣り合って位置する。スペーサ７は、例えばポリカーボネートなどの樹脂等の磁性を有さない材料で作製され得る。一端が拡径した連結シャフト６は、支持部材１０の中心、スペーサ７、内ヨーク５、マグネット３及び外ヨーク４を順次貫通し、外ヨーク４から突出する連結シャフト６の端部が、外ヨーク４に固定される。例えば、連結シャフト６の端部は、ナットを用いたねじ結合によって外ヨーク４に固定されてもよく、拡径するように塑性変形を受けるかしめ加工を施されることによって、外ヨーク４に固定されてもよく、連結シャフト６の端部と外ヨーク４との固定方法は、限定されない。連結シャフト６は、その両端で挟持するようにして、支持部材１０、スペーサ７、内ヨーク５、マグネット３及び外ヨーク４を互いに固定する。 The magnet 3, the outer yoke 4, and the inner yoke 5 assembled to each other are fixed to the support member 10 by a connecting shaft 6 penetrating through the axis of these cylinders or cylinders. The inner yoke 5 is located adjacent to the support member 10 via a cylindrical spacer 7 that is interposed between the inner yoke 5 and the support member 10 and separates them from each other. The spacer 7 can be made of a non-magnetic material such as a resin such as polycarbonate. The connecting shaft 6 having an enlarged diameter at one end sequentially penetrates the center of the support member 10, the spacer 7, the inner yoke 5, the magnet 3 and the outer yoke 4, and the end of the connecting shaft 6 protruding from the outer yoke 4 is the outer yoke. It is fixed at 4. For example, the end of the connecting shaft 6 may be fixed to the outer yoke 4 by screw coupling using a nut, and is fixed to the outer yoke 4 by being caulked to undergo plastic deformation so as to increase the diameter. The method of fixing the end of the connecting shaft 6 to the outer yoke 4 is not limited. The connecting shaft 6 fixes the support member 10, the spacer 7, the inner yoke 5, the magnet 3 and the outer yoke 4 to each other so as to be sandwiched between both ends thereof.

コイル２は、外ヨーク４の周壁部４ｂと、マグネット３及び内ヨーク５との間の円筒状の間隙内に挿入されるように配置される。コイル２は、外ヨーク４の周壁部４ｂと内ヨーク５の外周面５ａとに対向して位置する。コイル２は、その軸心方向の端部と係合する環状の保持部材８によって、支持される。保持部材８は、コイル２と反対側に形成された嵌合突起８ａを支持部材１０に嵌合させることによって、支持部材１０に固定される。 The coil 2 is arranged so as to be inserted into a cylindrical gap between the peripheral wall portion 4b of the outer yoke 4 and the magnet 3 and the inner yoke 5. The coil 2 is located so as to face the peripheral wall portion 4b of the outer yoke 4 and the outer peripheral surface 5a of the inner yoke 5. The coil 2 is supported by an annular holding member 8 that engages its axial end. The holding member 8 is fixed to the support member 10 by fitting the fitting protrusion 8a formed on the opposite side of the coil 2 to the support member 10.

上述のようなマグネット３、外ヨーク４、内ヨーク５及びコイル２は、連結シャフト６の軸心方向に位置する支持部材１０の２つの主面１０ａ及び１０ｂのうちの主面１０ａ側に位置し、振動伝達板１は、主面１０ａと反対側の主面１０ｂ側に位置する。 The magnet 3, the outer yoke 4, the inner yoke 5, and the coil 2 as described above are located on the main surface 10a side of the two main surfaces 10a and 10b of the support member 10 located in the axial direction of the connecting shaft 6. The vibration transmission plate 1 is located on the main surface 10b side opposite to the main surface 10a.

図５を参照すると、支持部材１０が詳細に示されている。なお、図５は、図２の支持部材１０の平面図である。支持部材１０は、薄肉な円板状の外形を有している。支持部材１０は、例えば、金属板からの打ち抜き加工、樹脂成形等によって形成され得る。支持部材１０は、その径方向の中心に位置する円形状のマグネット固定部１１と、マグネット固定部１１の外周を囲む環状の振動伝達板固定部１２と、振動伝達板固定部１２の外周を囲む環状のコイル固定部１３とを、互いに離れた状態で含む。支持部材１０はさらに、マグネット固定部１１と振動伝達板固定部１２とを連結するマグネット支持ばね部１４と、振動伝達板固定部１２とコイル固定部１３とを連結するコイル支持ばね部１５とを含む。本実施の形態では、マグネット固定部１１、振動伝達板固定部１２、コイル固定部１３、マグネット支持ばね部１４及びコイル支持ばね部１５は、一体化されて互いに連続して延在し、１つの途切れのない部材を形成する。ここで、マグネット固定部１１は、第１の接続部の一例であり、振動伝達板固定部１２は、第２の接続部の一例であり、コイル固定部１３は、第３の接続部の一例であり、マグネット支持ばね部１４は、連結部の第１の連結部の一例であり、コイル支持ばね部１５は、連結部の第２の連結部の一例である。 With reference to FIG. 5, the support member 10 is shown in detail. Note that FIG. 5 is a plan view of the support member 10 of FIG. The support member 10 has a thin disk-shaped outer shape. The support member 10 can be formed, for example, by punching from a metal plate, resin molding, or the like. The support member 10 surrounds the circular magnet fixing portion 11 located at the center in the radial direction, the annular vibration transmission plate fixing portion 12 surrounding the outer circumference of the magnet fixing portion 11, and the outer circumference of the vibration transmission plate fixing portion 12. The annular coil fixing portion 13 is included in a state of being separated from each other. The support member 10 further includes a magnet support spring portion 14 that connects the magnet fixing portion 11 and the vibration transmission plate fixing portion 12, and a coil support spring portion 15 that connects the vibration transmission plate fixing portion 12 and the coil fixing portion 13. include. In the present embodiment, the magnet fixing portion 11, the vibration transmission plate fixing portion 12, the coil fixing portion 13, the magnet supporting spring portion 14 and the coil supporting spring portion 15 are integrated and extend continuously to each other, and are one. Form an uninterrupted member. Here, the magnet fixing portion 11 is an example of the first connecting portion, the vibration transmission plate fixing portion 12 is an example of the second connecting portion, and the coil fixing portion 13 is an example of the third connecting portion. The magnet support spring portion 14 is an example of the first connecting portion of the connecting portion, and the coil supporting spring portion 15 is an example of the second connecting portion of the connecting portion.

図３〜図５を参照すると、マグネット固定部１１は、その軸心方向で薄肉な円板によって形成されており、その中心に連結シャフト６を挿通可能な貫通孔１１ａを有している。マグネット固定部１１は、貫通孔１１ａを通る連結シャフト６によって、マグネット３、外ヨーク４、内ヨーク５及びスペーサ７と相互に組み付け及び固定される。さらに、マグネット固定部１１は、組み付けられたマグネット３、外ヨーク４、内ヨーク５、連結シャフト６及びスペーサ７と一体となって振動するマグネット質量部３０を形成する。振動伝達板固定部１２は、環状に延在する薄肉且つ細長の板材によって形成され、その環及びマグネット固定部１１の軸心方向で薄肉である。振動伝達板固定部１２は、振動伝達板１と相互に組み付け及び固定される。振動伝達板固定部１２は、振動伝達板１と一体となって振動する振動伝達板質量部４０を形成する。コイル固定部１３は、円環状に延在する薄肉且つ細長の板材によって形成され、その円環及びマグネット固定部１１の軸心方向で薄肉である。コイル固定部１３は、保持部材８を介して、コイル２と相互に組み付け及び固定される。さらに、コイル固定部１３は、コイル２とコイル２を保持する保持部材８と一体となって振動するコイル質量部２０を形成する。マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３は、同軸上に配置されている。 Referring to FIGS. 3 to 5, the magnet fixing portion 11 is formed of a thin disk in the axial direction thereof, and has a through hole 11a at the center of which the connecting shaft 6 can be inserted. The magnet fixing portion 11 is assembled and fixed to each other with the magnet 3, the outer yoke 4, the inner yoke 5 and the spacer 7 by the connecting shaft 6 passing through the through hole 11a. Further, the magnet fixing portion 11 forms a magnet mass portion 30 that vibrates integrally with the assembled magnet 3, the outer yoke 4, the inner yoke 5, the connecting shaft 6 and the spacer 7. The vibration transmission plate fixing portion 12 is formed of a thin and elongated plate material extending in an annular shape, and is thin in the axial direction of the ring and the magnet fixing portion 11. The vibration transmission plate fixing portion 12 is assembled and fixed to each other with the vibration transmission plate 1. The vibration transmission plate fixing portion 12 forms a vibration transmission plate mass portion 40 that vibrates integrally with the vibration transmission plate 1. The coil fixing portion 13 is formed of a thin and elongated plate material extending in an annular shape, and is thin in the axial direction of the annulus and the magnet fixing portion 11. The coil fixing portion 13 is assembled and fixed to and from the coil 2 via the holding member 8. Further, the coil fixing portion 13 forms a coil mass portion 20 that vibrates integrally with the coil 2 and the holding member 8 that holds the coil 2. The magnet fixing portion 11, the vibration transmission plate fixing portion 12, and the coil fixing portion 13 are arranged coaxially.

図５を参照すると、複数のマグネット支持ばね部１４が、マグネット固定部１１から振動伝達板固定部１２にまで、マグネット固定部１１の径方向に放射状に延在している。本実施の形態では、３つのマグネット支持ばね部１４が配置されている。３つのマグネット支持ばね部１４は、マグネット固定部１１の貫通孔１１ａの中心を中心として回転対称、具体的には１２０°の角度で回転対称に配置されている。つまり、３つのマグネット支持ばね部１４は、貫通孔１１ａの周方向に略等間隔に配置されている。なお、２≦ｎとなるｎ個のマグネット支持ばね部１４が配置される場合、ｎ個のマグネット支持ばね部１４は、貫通孔１１ａを中心に３６０°／ｎの角度で回転対称に配置される。各マグネット支持ばね部１４は、直線状の薄肉且つ細長の板材によって形成され、マグネット固定部１１の軸心方向で薄肉である。ここで、貫通孔１１ａの中心は、支持部材１０の中心を構成している。 Referring to FIG. 5, a plurality of magnet support spring portions 14 extend radially from the magnet fixing portion 11 to the vibration transmission plate fixing portion 12 in the radial direction of the magnet fixing portion 11. In this embodiment, three magnet support spring portions 14 are arranged. The three magnet support spring portions 14 are arranged rotationally symmetrically about the center of the through hole 11a of the magnet fixing portion 11, specifically, rotationally symmetrically at an angle of 120 °. That is, the three magnet support spring portions 14 are arranged at substantially equal intervals in the circumferential direction of the through holes 11a. When n magnet support springs 14 having 2 ≦ n are arranged, the n magnet support springs 14 are arranged rotationally symmetrically at an angle of 360 ° / n about the through hole 11a. .. Each magnet support spring portion 14 is formed of a linear thin-walled and elongated plate material, and is thin-walled in the axial direction of the magnet fixing portion 11. Here, the center of the through hole 11a constitutes the center of the support member 10.

複数のコイル支持ばね部１５が、振動伝達板固定部１２からコイル固定部１３にまで、マグネット固定部１１及びコイル固定部１３の径方向に放射状に延在している。本実施の形態では、３つのコイル支持ばね部１５が配置されている。３つのコイル支持ばね部１５は、マグネット固定部１１の貫通孔１１ａを中心に回転対称、具体的には１２０°の角度で回転対称に配置されている。つまり、３つのコイル支持ばね部１５は、貫通孔１１ａの周方向に略等間隔に配置されている。 A plurality of coil support spring portions 15 extend radially from the vibration transmission plate fixing portion 12 to the coil fixing portion 13 in the radial direction of the magnet fixing portion 11 and the coil fixing portion 13. In this embodiment, three coil support spring portions 15 are arranged. The three coil support spring portions 15 are arranged rotationally symmetrically about the through hole 11a of the magnet fixing portion 11, specifically, rotationally symmetrically at an angle of 120 °. That is, the three coil support spring portions 15 are arranged at substantially equal intervals in the circumferential direction of the through holes 11a.

各コイル支持ばね部１５は、マグネット支持ばね部１４と異なる位置で振動伝達板固定部１２に接続している。つまり、各コイル支持ばね部１５は、マグネット固定部１１の貫通孔１１ａの周方向で、マグネット支持ばね部１４からずれた位置に配置されている。具体的には、各コイル支持ばね部１５は、貫通孔１１ａの周方向で、２つのマグネット支持ばね部１４の中間位置に配置されている。振動伝達板固定部１２とマグネット支持ばね部１４との接続部分の位置と、振動伝達板固定部１２とコイル支持ばね部１５との接続部分の位置とが異なることによって、振動伝達板固定部１２の接続部分における応力が低減する。さらに、マグネット支持ばね部１４及びコイル支持ばね部１５は、貫通孔１１ａの径方向に一列に並ぶ場合に互いから受ける長さの制約を、低減する。各コイル支持ばね部１５は、直線状の薄肉且つ細長の板材によって形成され、マグネット固定部１１の軸心方向で薄肉である。 Each coil support spring portion 15 is connected to the vibration transmission plate fixing portion 12 at a position different from that of the magnet support spring portion 14. That is, each coil support spring portion 15 is arranged at a position deviated from the magnet support spring portion 14 in the circumferential direction of the through hole 11a of the magnet fixing portion 11. Specifically, each coil support spring portion 15 is arranged at an intermediate position between the two magnet support spring portions 14 in the circumferential direction of the through hole 11a. Since the position of the connection portion between the vibration transmission plate fixing portion 12 and the magnet support spring portion 14 and the position of the connection portion between the vibration transmission plate fixing portion 12 and the coil support spring portion 15 are different, the vibration transmission plate fixing portion 12 The stress at the connection part of is reduced. Further, the magnet support spring portion 14 and the coil support spring portion 15 reduce the restrictions on the lengths received from each other when they are arranged in a line in the radial direction of the through holes 11a. Each coil support spring portion 15 is formed of a linear thin-walled and elongated plate material, and is thin-walled in the axial direction of the magnet fixing portion 11.

振動伝達板固定部１２は、異形の環形状を有しており、コイル固定部１３の内周に沿って延在する３つの円弧状の第一部位１２ａと、コイル固定部１３の弦方向に延在する３つの直線状の第二部位１２ｂとを含む。互いに間隔をあけて配置されている３つの第一部位１２ａの間に、３つの第二部位１２ｂが配置されている。振動伝達板固定部１２は、マグネット固定部１１の貫通孔１１ａを中心に回転対称、具体的には１２０°の角度で回転対称な平面形状を有している。なお、平面形状とは、連結シャフト６の軸心方向である貫通孔１１ａの軸心方向で支持部材１０を見たときの形状である。 The vibration transmission plate fixing portion 12 has an irregular ring shape, and has three arcuate first portions 12a extending along the inner circumference of the coil fixing portion 13 and the coil fixing portion 13 in the chord direction. Includes three linear second sites 12b that extend. Three second sites 12b are arranged between the three first sites 12a that are spaced apart from each other. The vibration transmission plate fixing portion 12 has a planar shape that is rotationally symmetric with respect to the through hole 11a of the magnet fixing portion 11, specifically, rotationally symmetric at an angle of 120 °. The planar shape is a shape when the support member 10 is viewed in the axial direction of the through hole 11a, which is the axial direction of the connecting shaft 6.

各第一部位１２ａには、１つのマグネット支持ばね部１４が接続されている。各第二部位１２ｂには、１つのコイル支持ばね部１５が接続されている。振動伝達板固定部１２において、第一部位１２ａは、第二部位１２ｂよりもマグネット固定部１１から離れて位置するため、マグネット支持ばね部１４の長さを長くすることが可能になる。第二部位１２ｂは、第一部位１２ａよりもコイル固定部１３から離れて位置するため、コイル支持ばね部１５の長さを長くすることが可能になる。これにより、振動伝達板固定部１２に対するマグネット固定部１１及びコイル固定部１３の振動振幅が大きくなり、マグネット固定部１１及びコイル固定部１３に共振が発生する場合の共振周波数も変化する。 One magnet support spring portion 14 is connected to each first portion 12a. One coil support spring portion 15 is connected to each second portion 12b. In the vibration transmission plate fixing portion 12, the first portion 12a is located farther from the magnet fixing portion 11 than the second portion 12b, so that the length of the magnet supporting spring portion 14 can be increased. Since the second portion 12b is located farther from the coil fixing portion 13 than the first portion 12a, the length of the coil supporting spring portion 15 can be increased. As a result, the vibration amplitude of the magnet fixing portion 11 and the coil fixing portion 13 with respect to the vibration transmission plate fixing portion 12 becomes large, and the resonance frequency when resonance occurs in the magnet fixing portion 11 and the coil fixing portion 13 also changes.

振動伝達板固定部１２において、マグネット支持ばね部１４及びコイル支持ばね部１５の各接続部分に、振動伝達板固定部１２を貫通する嵌合孔１２ｃが形成されている。本実施の形態では、６つの嵌合孔１２ｃが配置されている。接続部分に嵌合孔１２ｃを形成することは、第一部位１２ａ及び第二部位１２ｂのその他の部位に形成する場合よりも、嵌合孔１２ｃの周囲の部材の幅を確保し、嵌合孔１２ｃの周囲の部材強度を高くすることができる。嵌合孔１２ｃは、振動伝達板１に形成された嵌合突起１ｄ（図２参照）と嵌合し、それにより支持部材１０を振動伝達板１に固定する。嵌合後、嵌合突起１ｄの先端は、拡径するように塑性変形を受けるかしめ加工を施されてもよい。なお、振動伝達板１への支持部材１０の固定方法は、上記に限定されず、例えば、接着、ねじ締結、一体成形等のいかなる方法であってもよい。 In the vibration transmission plate fixing portion 12, fitting holes 12c penetrating the vibration transmission plate fixing portion 12 are formed at each connection portion of the magnet support spring portion 14 and the coil support spring portion 15. In this embodiment, six fitting holes 12c are arranged. Forming the fitting hole 12c in the connecting portion secures the width of the member around the fitting hole 12c and secures the width of the member around the fitting hole 12c as compared with the case where the fitting hole 12c is formed in the other portions of the first portion 12a and the second portion 12b. The strength of the members around 12c can be increased. The fitting hole 12c is fitted with a fitting projection 1d (see FIG. 2) formed on the vibration transmission plate 1, thereby fixing the support member 10 to the vibration transmission plate 1. After fitting, the tip of the fitting protrusion 1d may be caulked to undergo plastic deformation so as to increase the diameter. The method of fixing the support member 10 to the vibration transmission plate 1 is not limited to the above, and may be any method such as adhesion, screw fastening, and integral molding.

また、コイル固定部１３において、コイル支持ばね部１５の各接続部分に、コイル固定部１３を貫通する嵌合孔１３ａが形成されている。本実施の形態では、３つの嵌合孔１３ａが配置されている。接続部分に嵌合孔１３ａを形成することは、その他の部位に形成する場合よりも、嵌合孔１３ａの周囲の部材の幅を確保し、嵌合孔１３ａの周囲の部材強度を高くすることができる。嵌合孔１３ａは、保持部材８に形成された嵌合突起８ａ（図２参照）と嵌合し、それにより保持部材８を支持部材１０に固定する。嵌合後、嵌合突起８ａの先端は、拡径するように塑性変形を受けるかしめ加工を施されてもよい。なお、保持部材８の固定方法は、上記に限定されず、例えば、接着、ねじ締結、一体成形等のいかなる方法であってもよい。 Further, in the coil fixing portion 13, fitting holes 13a penetrating the coil fixing portion 13 are formed in each connecting portion of the coil supporting spring portion 15. In this embodiment, three fitting holes 13a are arranged. Forming the fitting hole 13a in the connecting portion secures the width of the member around the fitting hole 13a and increases the strength of the member around the fitting hole 13a as compared with the case where the fitting hole 13a is formed in the other portion. Can be done. The fitting hole 13a fits into the fitting projection 8a (see FIG. 2) formed in the holding member 8, thereby fixing the holding member 8 to the support member 10. After fitting, the tip of the fitting protrusion 8a may be caulked to undergo plastic deformation so as to increase the diameter. The method of fixing the holding member 8 is not limited to the above, and may be any method such as adhesion, screw fastening, and integral molding.

上述のようなマグネット固定部１１、振動伝達板固定部１２、コイル固定部１３、マグネット支持ばね部１４及びコイル支持ばね部１５は、マグネット固定部１１の貫通孔１１ａの径方向に横並びに且つ平面的に配置され、薄い平坦な板状の支持部材１０を形成する。そして、マグネット固定部１１、振動伝達板固定部１２、コイル固定部１３、マグネット支持ばね部１４及びコイル支持ばね部１５は、１つの平面に沿って配置されている。本実施の形態では、マグネット固定部１１、振動伝達板固定部１２、コイル固定部１３、マグネット支持ばね部１４及びコイル支持ばね部１５は、同一平面上に配置されている。これにより、支持部材１０の薄型化が可能になる。しかしながら、マグネット固定部１１、振動伝達板固定部１２、コイル固定部１３、マグネット支持ばね部１４及びコイル支持ばね部１５は、マグネット固定部１１の貫通孔１１ａの軸心方向で互いにずれて位置してもよい。 The magnet fixing portion 11, the vibration transmission plate fixing portion 12, the coil fixing portion 13, the magnet supporting spring portion 14, and the coil supporting spring portion 15 as described above are laterally arranged and flat in the radial direction of the through hole 11a of the magnet fixing portion 11. To form a thin, flat plate-shaped support member 10. The magnet fixing portion 11, the vibration transmission plate fixing portion 12, the coil fixing portion 13, the magnet supporting spring portion 14, and the coil supporting spring portion 15 are arranged along one plane. In the present embodiment, the magnet fixing portion 11, the vibration transmission plate fixing portion 12, the coil fixing portion 13, the magnet supporting spring portion 14 and the coil supporting spring portion 15 are arranged on the same plane. This makes it possible to reduce the thickness of the support member 10. However, the magnet fixing portion 11, the vibration transmission plate fixing portion 12, the coil fixing portion 13, the magnet supporting spring portion 14 and the coil supporting spring portion 15 are located offset from each other in the axial direction of the through hole 11a of the magnet fixing portion 11. You may.

図６を参照すると、振動伝達板１が詳細に示されている。なお、図６は、図２の振動伝達板１を拡大した斜視図である。振動伝達板１は、振動を伝達する対象物と接触する円板部１ａと、円板部１ａの平坦な表面から突出する環状の支持部材固定部１ｂと、円板部１ａの上記表面から突出する複数の補剛部１ｃとを、一体的に含む。ここで、支持部材固定部１ｂは、支持部材接続部の一例である。 With reference to FIG. 6, the vibration transmission plate 1 is shown in detail. Note that FIG. 6 is an enlarged perspective view of the vibration transmission plate 1 of FIG. The vibration transmission plate 1 includes a disc portion 1a that comes into contact with an object that transmits vibration, an annular support member fixing portion 1b that protrudes from the flat surface of the disc portion 1a, and a disc portion 1a that protrudes from the surface. A plurality of stiffening portions 1c are integrally included. Here, the support member fixing portion 1b is an example of the support member connecting portion.

円板部１ａの中心には、円板部１ａを貫通する貫通孔１ａａが形成されている。貫通孔１ａａは、拡径した端部を含めて連結シャフト６を挿通できる形状及び寸法を有している。これにより、貫通孔１ａａを介した連結シャフト６の設置及び撤去が可能である。支持部材固定部１ｂは、貫通孔１ａａの周囲を囲む帯状の突起であり、支持部材１０の振動伝達板固定部１２と同様の平面形状を有している。支持部材固定部１ｂは、振動伝達板固定部１２の全体が載る平坦な支持面１ｂａを、その上面として有している。そして、支持部材１０の振動伝達板固定部１２は、支持面１ｂａにならう平面形状を有し、支持面１ｂａに沿って延在する。 A through hole 1aa penetrating the disc portion 1a is formed at the center of the disc portion 1a. The through hole 1aa has a shape and dimensions through which the connecting shaft 6 can be inserted, including the enlarged end portion. As a result, the connecting shaft 6 can be installed and removed via the through hole 1aa. The support member fixing portion 1b is a band-shaped protrusion surrounding the periphery of the through hole 1aa, and has the same planar shape as the vibration transmission plate fixing portion 12 of the support member 10. The support member fixing portion 1b has a flat support surface 1ba on which the entire vibration transmission plate fixing portion 12 is placed as its upper surface. The vibration transmission plate fixing portion 12 of the support member 10 has a planar shape following the support surface 1ba and extends along the support surface 1ba.

さらに、支持部材固定部１ｂの支持面１ｂａ上には、複数の嵌合突起１ｄが一体的に形成されている。各嵌合突起１ｄは、支持部材１０の振動伝達板固定部１２の各嵌合孔１２ｃと整合する位置に配置され、各嵌合孔１２ｃに嵌合することができる。複数の補剛部１ｃは、支持部材固定部１ｂから円板部１ａの径方向外側に放射状に延びる直線状の帯状突起である。各補剛部１ｃは、円板部１ａ及び支持部材固定部１ｂと一体化されている。複数の補剛部１ｃは、円板部１ａ及び支持部材固定部１ｂの接続部分の剛性と、円板部１ａの剛性とを向上する。これにより、支持部材固定部１ｂに与えられた振動加振力は、円板部１ａの全体にわたって分散して伝達し得る。 Further, a plurality of fitting protrusions 1d are integrally formed on the support surface 1ba of the support member fixing portion 1b. Each fitting protrusion 1d is arranged at a position consistent with each fitting hole 12c of the vibration transmission plate fixing portion 12 of the support member 10, and can be fitted into each fitting hole 12c. The plurality of stiffening portions 1c are linear band-shaped projections that radiate outward in the radial direction from the support member fixing portion 1b to the disc portion 1a. Each stiffening portion 1c is integrated with a disk portion 1a and a support member fixing portion 1b. The plurality of stiffening portions 1c improve the rigidity of the connecting portion between the disc portion 1a and the support member fixing portion 1b and the rigidity of the disc portion 1a. As a result, the vibration excitation force applied to the support member fixing portion 1b can be dispersed and transmitted over the entire disk portion 1a.

図３〜図６を参照すると、振動ドライバ１００では、振動伝達板質量部４０は、振動伝達板固定部１２の内側で、支持部材１０のマグネット支持ばね部１４を介して、マグネット質量部３０と弾性的に接続される。振動伝達板質量部４０は、振動伝達板固定部１２の外側で、支持部材１０のコイル支持ばね部１５を介して、コイル質量部２０と弾性的に接続される。そして、各接続部分は、実質的に同一平面上に位置する。振動伝達板質量部４０とコイル質量部２０とマグネット質量部３０とは、互いに対して連結シャフト６の軸心方向に弾性を伴った移動をすることができる。 Referring to FIGS. 3 to 6, in the vibration driver 100, the vibration transmission plate mass portion 40 is inside the vibration transmission plate fixing portion 12, via the magnet support spring portion 14 of the support member 10, and the magnet mass portion 30. It is elastically connected. The vibration transmission plate mass portion 40 is elastically connected to the coil mass portion 20 via the coil support spring portion 15 of the support member 10 on the outside of the vibration transmission plate fixing portion 12. Then, each connecting portion is located substantially on the same plane. The vibration transmission plate mass portion 40, the coil mass portion 20, and the magnet mass portion 30 can move with elasticity in the axial direction of the connecting shaft 6 with respect to each other.

振動ドライバ１００では、電気信号が送られることによってコイル２が発生する磁界と、外ヨーク４及び内ヨーク５間の磁界とが相互作用し、それにより、コイル質量部２０と、マグネット質量部３０との間に、振動加振力が発生する。この振動加振力は、支持部材１０のマグネット支持ばね部１４及びコイル支持ばね部１５を介して振動伝達板質量部４０に伝達し、振動伝達板１を弾性的に振動させ、振動伝達板１の振動は、振動伝達板１に接触する対象物に伝達する。コイル２に送られる電気信号が音声信号であり、対象物が人体頭部である場合、振動伝達板１の振動は、ばね性を有する皮膚や頭蓋骨などの人体頭部組織を介して、音として聴神経に伝達する。また、振動伝達板１が人体頭部に接触して配置される状態で、被接触者から声が発せられる場合に、発せられた人の声の振動が人体頭部組織を介して振動伝達板１を振動させ、それによりコイル質量部２０と、マグネット質量部３０とが相対的に振動し、コイル２に誘導起電力が発生する。この誘導起電力による電気信号を音声信号として処理することによって、振動ドライバ１００は、それを装着した人が発する音声を収音する手段として動作させることもできる。これらの動作において、振動ドライバ１００は、コイル質量部２０と、マグネット質量部３０と、振動伝達板質量部４０の３つの質量部が、マグネット支持ばね部１４と、コイル支持ばね部１５とで連結された３自由度の振動系を形成する。３つの質量部では、それぞれ、振動伝達板質量部４０が人体に接続され、コイル質量部２０は振動伝達板質量部４０とコイル支持部ばね部１５で接続され、マグネット質量部３０は振動伝達板質量部４０とマグネット支持ばね部１４で接続される。振動加振力及び誘導起電力は、コイル質量部２０とマグネット質量部３０の相対運動に起因して発生する。３つの質量部の質量は、コイル質量部２０が最も小さく、振動伝達板質量部４０、マグネット質量部３０の順に大きくなる。また、支持部材１０のばね剛性は、マグネット支持ばね部１４よりもコイル支持ばね部１５が大きくなるように設定されている。この構成にすると、３つの自由度に対応する３つの共振モードにおける振動伝達板質量部４０の振動の位相には、反共振点が発生しないため、振動周波数に対してフラットな振動加振力伝達特性及び誘導起電力検出特性を得ることが出来る。 In the vibration driver 100, the magnetic field generated by the coil 2 due to the transmission of an electric signal and the magnetic field between the outer yoke 4 and the inner yoke 5 interact with each other, whereby the coil mass portion 20 and the magnet mass portion 30 A vibration-exciting force is generated between the two. This vibration excitation force is transmitted to the vibration transmission plate mass portion 40 via the magnet support spring portion 14 and the coil support spring portion 15 of the support member 10, and elastically vibrates the vibration transmission plate 1 to cause the vibration transmission plate 1 to vibrate. The vibration of is transmitted to the object in contact with the vibration transmission plate 1. When the electric signal sent to the coil 2 is an audio signal and the object is the human head, the vibration of the vibration transmission plate 1 is a sound through the springy skin or the human head tissue such as the skull. Transmit to the auditory nerve. Further, when a voice is uttered from the contacted person in a state where the vibration transmission plate 1 is arranged in contact with the human head, the vibration of the uttered human voice is transmitted through the human head tissue. 1 is vibrated, whereby the coil mass portion 20 and the magnet mass portion 30 vibrate relatively, and an induced electromotive force is generated in the coil 2. By processing the electric signal due to the induced electromotive force as a voice signal, the vibration driver 100 can also be operated as a means for collecting the sound emitted by the person wearing the vibration driver 100. In these operations, in the vibration driver 100, the coil mass portion 20, the magnet mass portion 30, and the vibration transmission plate mass portion 40 are connected by the magnet support spring portion 14 and the coil support spring portion 15. It forms a vibration system with three degrees of freedom. In each of the three mass parts, the vibration transmission plate mass part 40 is connected to the human body, the coil mass part 20 is connected to the vibration transmission plate mass part 40 by the coil support spring part 15, and the magnet mass part 30 is the vibration transmission plate. It is connected to the mass portion 40 by the magnet support spring portion 14. The vibration excitation force and the induced electromotive force are generated due to the relative motion of the coil mass portion 20 and the magnet mass portion 30. The mass of the three mass parts is the smallest in the coil mass portion 20, and increases in the order of the vibration transmission plate mass portion 40 and the magnet mass portion 30. Further, the spring rigidity of the support member 10 is set so that the coil support spring portion 15 is larger than the magnet support spring portion 14. With this configuration, no anti-resonance point is generated in the vibration phase of the vibration transmission plate mass portion 40 in the three resonance modes corresponding to the three degrees of freedom, so that the vibration excitation force is transmitted flat with respect to the vibration frequency. Characteristics and induced electromotive force detection characteristics can be obtained.

［１−２．効果等］
上述したように、実施の形態１に係る振動ドライバ１００は、コイル２と、マグネット３と、コイル２及びマグネット３間の振動としての振動加振力を伝達する振動伝達板１と、コイル２、マグネット３及び振動伝達板１を支持する支持部材１０とを備える。支持部材１０は、マグネット３に接続される第１の接続部としてのマグネット固定部１１と、振動伝達板１に接続される第２の接続部としての振動伝達板固定部１２と、コイル２に接続される第３の接続部としてのコイル固定部１３と、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３を互いに連結し且つ弾性を有する連結部としてのマグネット支持ばね部１４及びコイル支持ばね部１５とを含む。さらに、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３は、横並びに且つ平面的に配置される。例えば、コイル固定部１３は、コイル２の全体を支持するように円環状形状を有してもよい。[1-2. Effect, etc.]
As described above, the vibration driver 100 according to the first embodiment includes the coil 2, the magnet 3, the vibration transmission plate 1 for transmitting the vibration excitation force as vibration between the coil 2 and the magnet 3, and the coil 2. It includes a magnet 3 and a support member 10 that supports the vibration transmission plate 1. The support member 10 is attached to a magnet fixing portion 11 as a first connecting portion connected to the magnet 3, a vibration transmitting plate fixing portion 12 as a second connecting portion connected to the vibration transmitting plate 1, and a coil 2. The coil fixing portion 13 as a third connecting portion to be connected, the magnet fixing portion 11, the vibration transmission plate fixing portion 12 and the coil fixing portion 13 are connected to each other, and the magnet support spring portion 14 as an elastic connecting portion and Includes a coil support spring portion 15. Further, the magnet fixing portion 11, the vibration transmission plate fixing portion 12, and the coil fixing portion 13 are arranged side by side and in a plane. For example, the coil fixing portion 13 may have an annular shape so as to support the entire coil 2.

上述の構成において、支持部材１０は、横並びに且つ平面的に配置されるマグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３が、マグネット支持ばね部１４及びコイル支持ばね部１５によって互いに連結される構成を有しているに過ぎない。これにより、支持部材１０の構造の簡易化が可能になる。さらに、横並びに配置されるマグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３それぞれと、マグネット３、振動伝達板１及びコイル２との接続構造も、互いに干渉しないようにしつつ簡易にすることができる。また、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３が平面的に配置されるため、これらの横並び方向と垂直な方向での支持部材１０の高さの低減が可能になる。これにより、支持部材１０は、平面的な簡易な構成を有することができる。 In the above configuration, the support member 10 has a magnet fixing portion 11, a vibration transmission plate fixing portion 12, and a coil fixing portion 13 arranged side by side and in a plane, and the magnet supporting spring portion 14 and the coil supporting spring portion 15 mutually. It only has a configuration that is connected. This makes it possible to simplify the structure of the support member 10. Further, the connection structure between the magnet fixing portion 11, the vibration transmission plate fixing portion 12 and the coil fixing portion 13 arranged side by side, and the magnet 3, the vibration transmission plate 1 and the coil 2 can be easily constructed so as not to interfere with each other. can do. Further, since the magnet fixing portion 11, the vibration transmission plate fixing portion 12, and the coil fixing portion 13 are arranged in a plane, the height of the support member 10 can be reduced in the direction perpendicular to the side-by-side arrangement direction. As a result, the support member 10 can have a simple flat structure.

又は、実施の形態１に係る振動ドライバ１００では、支持部材１０は、マグネット固定部１１と、振動伝達板固定部１２と、コイル固定部１３と、マグネット支持ばね部１４及びコイル支持ばね部１５とを一体的に含む。さらに、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３は、横並びに配置される。また、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３は、平面的に配置されてもよい。上述の構成において、支持部材１０は、横並びに配置され且つ一体化されたマグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３を含む構成を有している。これにより、上述と同様に、支持部材１０の構造の簡易化と、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３とマグネット３、振動伝達板１及びコイル２との接続構造の簡易化とが、可能になる。また、支持部材１０は、１つの部材から形成することができるため、その製造も容易になる。 Alternatively, in the vibration driver 100 according to the first embodiment, the support member 10 includes a magnet fixing portion 11, a vibration transmission plate fixing portion 12, a coil fixing portion 13, a magnet supporting spring portion 14, and a coil supporting spring portion 15. Is included integrally. Further, the magnet fixing portion 11, the vibration transmission plate fixing portion 12, and the coil fixing portion 13 are arranged side by side. Further, the magnet fixing portion 11, the vibration transmission plate fixing portion 12 and the coil fixing portion 13 may be arranged in a plane. In the above configuration, the support member 10 has a configuration including a magnet fixing portion 11, a vibration transmission plate fixing portion 12, and a coil fixing portion 13 which are arranged and integrated side by side. As a result, as described above, the structure of the support member 10 is simplified, and the connection structure between the magnet fixing portion 11, the vibration transmission plate fixing portion 12, the coil fixing portion 13 and the magnet 3, the vibration transmission plate 1 and the coil 2 is formed. Simplification becomes possible. Further, since the support member 10 can be formed from one member, its manufacture becomes easy.

実施の形態１に係る振動ドライバ１００の支持部材１０では、マグネット固定部１１、振動伝達板固定部１２、コイル固定部１３、マグネット支持ばね部１４及びコイル支持ばね部１５は、板状の形状を有する。上述の構成において、支持部材１０の薄型化が可能になる。 In the support member 10 of the vibration driver 100 according to the first embodiment, the magnet fixing portion 11, the vibration transmission plate fixing portion 12, the coil fixing portion 13, the magnet supporting spring portion 14 and the coil supporting spring portion 15 have a plate-like shape. Have. In the above configuration, the support member 10 can be made thinner.

実施の形態１に係る振動ドライバ１００の支持部材１０では、第１の連結部としてのマグネット支持ばね部１４は、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３のうちの２つを連結し、第２の連結部としてのコイル支持ばね部１５は、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３のうちのマグネット支持ばね部１４が連結する２つとは異なる組み合わせの２つを連結する。マグネット支持ばね部１４及びコイル支持ばね部１５が接続する振動伝達板固定部１２には、マグネット支持ばね部１４及びコイル支持ばね部１５が、互いに異なる位置で接続する。 In the support member 10 of the vibration driver 100 according to the first embodiment, the magnet support spring portion 14 as the first connecting portion is two of the magnet fixing portion 11, the vibration transmission plate fixing portion 12, and the coil fixing portion 13. The coil support spring portion 15 as the second connecting portion is a combination different from the two of the magnet fixing portion 11, the vibration transmission plate fixing portion 12 and the coil fixing portion 13 to which the magnet supporting spring portion 14 is connected. Connect the two. The magnet support spring portion 14 and the coil support spring portion 15 are connected to the vibration transmission plate fixing portion 12 to which the magnet support spring portion 14 and the coil support spring portion 15 are connected at different positions from each other.

上述の構成において、マグネット支持ばね部１４及びコイル支持ばね部１５は、振動伝達板固定部１２で一列に並ばずに位置ずれして配置されるため、支持部材１０の大きさが定められている場合でも、互いに対する影響を低減した状態で、それぞれの長さを設定することができる。例えば、一列に並んでいる状態のマグネット支持ばね部１４及びコイル支持ばね部１５は、支持部材１０の大きさが定められているため、長さを大きくする場合に互いの影響を受ける。よって、マグネット支持ばね部１４及びコイル支持ばね部１５の設計の自由度が向上する。例えば、マグネット支持ばね部１４及びコイル支持ばね部１５の長さは、マグネット質量部３０、振動伝達板質量部４０及びコイル質量部２０の間に発生する３つの共振の共振周波数のパラメータを構成する。マグネット支持ばね部１４及びコイル支持ばね部１５の長さの設計の自由度が向上することによって、発生させ得る共振周波数の自由度が向上する。 In the above configuration, the magnet support spring portion 14 and the coil support spring portion 15 are arranged in the vibration transmission plate fixing portion 12 so as to be displaced from each other without being lined up in a row, so that the size of the support member 10 is determined. Even in this case, the length of each can be set while reducing the influence on each other. For example, the magnet support spring portion 14 and the coil support spring portion 15 that are lined up in a row are affected by each other when the length is increased because the size of the support member 10 is determined. Therefore, the degree of freedom in designing the magnet support spring portion 14 and the coil support spring portion 15 is improved. For example, the lengths of the magnet support spring portion 14 and the coil support spring portion 15 constitute parameters for the resonance frequencies of the three resonances that occur between the magnet mass portion 30, the vibration transmission plate mass portion 40, and the coil mass portion 20. .. By improving the degree of freedom in designing the lengths of the magnet support spring portion 14 and the coil support spring portion 15, the degree of freedom in the resonance frequency that can be generated is improved.

実施の形態１に係る振動ドライバ１００の支持部材１０では、複数のマグネット支持ばね部１４と複数のコイル支持ばね部１５とが設けられる。複数のマグネット支持ばね部１４及び複数のコイル支持ばね部１５は、支持部材１０の中心に関して回転対称に配置される。上述の構成において、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３間では、力及び振動は、複数のマグネット支持ばね部１４及び複数のコイル支持ばね部１５を介して、偏りを低減して全体的に略均等に伝達する。 In the support member 10 of the vibration driver 100 according to the first embodiment, a plurality of magnet support spring portions 14 and a plurality of coil support spring portions 15 are provided. The plurality of magnet support spring portions 14 and the plurality of coil support spring portions 15 are arranged rotationally symmetrically with respect to the center of the support member 10. In the above configuration, between the magnet fixing portion 11, the vibration transmission plate fixing portion 12 and the coil fixing portion 13, the force and vibration are biased via the plurality of magnet support spring portions 14 and the plurality of coil support spring portions 15. It is reduced and transmitted almost evenly as a whole.

さらに、実施の形態１に係る振動ドライバ１００の支持部材１０では、振動伝達板固定部１２は、支持部材１０の中心に関して回転対称である形状を有する。上述の構成において、複数のマグネット支持ばね部１４及び複数のコイル支持ばね部１５を介して振動伝達板固定部１２に振動加振力が伝達する場合、振動伝達板固定部１２におけるばね反力の偏りが低減し、振動伝達板１、コイル２及びマグネット３の振動方向の直線性が向上する。 Further, in the support member 10 of the vibration driver 100 according to the first embodiment, the vibration transmission plate fixing portion 12 has a shape that is rotationally symmetric with respect to the center of the support member 10. In the above configuration, when the vibration excitation force is transmitted to the vibration transmission plate fixing portion 12 via the plurality of magnet support spring portions 14 and the plurality of coil support spring portions 15, the spring reaction force in the vibration transmission plate fixing portion 12 The bias is reduced, and the linearity of the vibration transmission plate 1, the coil 2, and the magnet 3 in the vibration direction is improved.

実施の形態１に係る振動ドライバ１００の支持部材１０では、振動伝達板固定部１２は、マグネット固定部１１とコイル固定部１３との間に配置され、マグネット支持ばね部１４は、振動伝達板固定部１２とマグネット固定部１１とを連結し、コイル支持ばね部１５は、振動伝達板固定部１２とコイル固定部１３とを連結する。振動伝達板固定部１２におけるマグネット支持ばね部１４との接続部分としての第一部位１２ａは、振動伝達板固定部１２におけるコイル支持ばね部１５との接続部分としての第二部位１２ｂよりも、マグネット固定部１１から離れて位置する。上述の構成において、振動伝達板固定部１２の第一部位１２ａは、第二部位１２ｂよりも、マグネット固定部１１から離れて位置する、つまり、第二部位１２ｂは、第一部位１２ａよりも、コイル固定部１３から離れて位置する。よって、マグネット支持ばね部１４及びコイル支持ばね部１５の長さを大きくすることが、可能になる。 In the support member 10 of the vibration driver 100 according to the first embodiment, the vibration transmission plate fixing portion 12 is arranged between the magnet fixing portion 11 and the coil fixing portion 13, and the magnet support spring portion 14 is fixed to the vibration transmission plate. The portion 12 and the magnet fixing portion 11 are connected, and the coil support spring portion 15 connects the vibration transmission plate fixing portion 12 and the coil fixing portion 13. The first portion 12a of the vibration transmission plate fixing portion 12 as a connecting portion with the magnet supporting spring portion 14 is more magnetized than the second portion 12b of the vibration transmitting plate fixing portion 12 as a connecting portion with the coil supporting spring portion 15. It is located away from the fixed portion 11. In the above configuration, the first portion 12a of the vibration transmission plate fixing portion 12 is located farther from the magnet fixing portion 11 than the second portion 12b, that is, the second portion 12b is located more than the first portion 12a. It is located away from the coil fixing portion 13. Therefore, it is possible to increase the lengths of the magnet support spring portion 14 and the coil support spring portion 15.

実施の形態１に係る振動ドライバ１００の支持部材１０では、マグネット固定部１１、振動伝達板固定部１２及びコイル固定部１３は、同軸上に配置される。上述の構成において、マグネット３、振動伝達板１及びコイル２を略同方向に振動させることができる。これにより、振動伝達板１、コイル２及びマグネット３の、重心位置を振動方向と一致させることが容易になり、例えば、これらの間での意図しない共振の発生を抑えることが、可能になる。 In the support member 10 of the vibration driver 100 according to the first embodiment, the magnet fixing portion 11, the vibration transmission plate fixing portion 12, and the coil fixing portion 13 are arranged coaxially. In the above configuration, the magnet 3, the vibration transmission plate 1 and the coil 2 can be vibrated in substantially the same direction. This makes it easy to match the position of the center of gravity of the vibration transmission plate 1, the coil 2, and the magnet 3 with the vibration direction, and for example, it is possible to suppress the occurrence of unintended resonance between them.

実施の形態１に係る振動ドライバ１００では、振動伝達板１は、支持部材１０と接続される支持部材接続部としての支持部材固定部１ｂを有し、振動伝達板固定部１２は、支持部材固定部１ｂに沿って延在する。さらに、支持部材固定部１ｂは、連続する環を形成するように延在してもよい。上述の構成において、支持部材固定部１ｂと振動伝達板固定部１２との接触面積の増加が可能になる。これにより、振動伝達板１と支持部材１０との間の振動の伝達が、効率的になる。 In the vibration driver 100 according to the first embodiment, the vibration transmission plate 1 has a support member fixing portion 1b as a support member connecting portion connected to the support member 10, and the vibration transmission plate fixing portion 12 fixes the support member. It extends along part 1b. Further, the support member fixing portion 1b may extend so as to form a continuous ring. In the above configuration, the contact area between the support member fixing portion 1b and the vibration transmission plate fixing portion 12 can be increased. As a result, the transmission of vibration between the vibration transmission plate 1 and the support member 10 becomes efficient.

（実施の形態２）
以下、図７〜図１２を参照して、実施の形態２に係る振動ドライバ２００を説明する。なお、図７は、実施の形態２に係る振動ドライバ２００を斜め上方から見た斜視図である。図８は、図７の振動ドライバ２００の分解斜視図である。図９は、図７の振動ドライバ２００の一部が切断されて内部が見えるようにされた状態を示す斜視図である。図１０は、図７の振動ドライバ２００の外ヨーク４の径方向に沿った振動ドライバ２００の断面を方向Ｘに見た断面側面図である。図１１は、図８の支持部材２１０の平面図である。図１２は、図８の振動伝達板２１の平面図である。以下の実施の形態の説明において、図１〜図６における参照符号と同一の符号の構成要素は、同一又は同様な構成要素であるので、その詳細な説明は省略する。さらに、既出の実施の形態と同様の点に関しては説明を省略する。(Embodiment 2)
Hereinafter, the vibration driver 200 according to the second embodiment will be described with reference to FIGS. 7 to 12. Note that FIG. 7 is a perspective view of the vibration driver 200 according to the second embodiment as viewed from diagonally above. FIG. 8 is an exploded perspective view of the vibration driver 200 of FIG. 7. FIG. 9 is a perspective view showing a state in which a part of the vibration driver 200 of FIG. 7 is cut so that the inside can be seen. FIG. 10 is a cross-sectional side view of the cross section of the vibration driver 200 along the radial direction of the outer yoke 4 of the vibration driver 200 of FIG. 7 as viewed in the direction X. FIG. 11 is a plan view of the support member 210 of FIG. FIG. 12 is a plan view of the vibration transmission plate 21 of FIG. In the following description of the embodiment, the components having the same reference numerals as those in FIGS. 1 to 6 are the same or similar components, and thus detailed description thereof will be omitted. Further, the same points as those in the above-described embodiment will be omitted.

実施の形態２に係る振動ドライバ２００では、実施の形態１に係る振動ドライバ１００と比較して、連結シャフトの構成と、支持部材及び振動伝達板間の接続構成とが、主に異なっている。振動ドライバ２００は、実施の形態１に係る振動ドライバ１００と同様に配設されるマグネット３、外ヨーク４及び内ヨーク２５を備えている。内ヨーク２５の径方向中心には、マグネット３と反対方向に突出する筒部２５ｂが一体に形成されている。筒部２５ｂの内側には、雌ねじ孔が形成されている。連結シャフト２６は、外周面に雄ねじが形成された軸部と、拡径した端部とを有している。連結シャフト２６は、例えば、ねじである。 In the vibration driver 200 according to the second embodiment, the configuration of the connecting shaft and the connection configuration between the support member and the vibration transmission plate are mainly different from those of the vibration driver 100 according to the first embodiment. The vibration driver 200 includes a magnet 3, an outer yoke 4, and an inner yoke 25 that are arranged in the same manner as the vibration driver 100 according to the first embodiment. A tubular portion 25b projecting in the direction opposite to the magnet 3 is integrally formed at the center of the inner yoke 25 in the radial direction. A female screw hole is formed inside the tubular portion 25b. The connecting shaft 26 has a shaft portion having a male screw formed on the outer peripheral surface thereof and an end portion having an enlarged diameter. The connecting shaft 26 is, for example, a screw.

マグネット３、外ヨーク４及び内ヨーク２５は、接着、嵌合、螺合等の接合方法によって互いに接合される。連結シャフト２６は、支持部材２１０のマグネット固定部１１の貫通孔１１ａを通り、内ヨーク２５の筒部２５ｂの雌ねじにその軸部を螺合させて配置される。連結シャフト２６は、内ヨーク２５に対して締め付けられることによって、支持部材２１０を内ヨーク２５に固定する。よって、内ヨーク２５の筒部２５ｂが、内ヨーク２５の円板部分と支持部材２１０との間に介在しこれらを互いに離す。 The magnet 3, the outer yoke 4, and the inner yoke 25 are joined to each other by a joining method such as bonding, fitting, and screwing. The connecting shaft 26 is arranged by passing through the through hole 11a of the magnet fixing portion 11 of the support member 210 and screwing its shaft portion into the female screw of the tubular portion 25b of the inner yoke 25. The connecting shaft 26 fixes the support member 210 to the inner yoke 25 by being tightened to the inner yoke 25. Therefore, the tubular portion 25b of the inner yoke 25 is interposed between the disk portion of the inner yoke 25 and the support member 210 to separate them from each other.

特に図１１を参照すると、支持部材２１０は、平面的に配置されたマグネット固定部１１、振動伝達板固定部２１２、コイル固定部１３、マグネット支持ばね部１４及びコイル支持ばね部１５を有している。マグネット支持ばね部１４が接続する振動伝達板固定部２１２の第一部位２１２ａは、実施の形態１に係る振動伝達板固定部１２の第一部位１２ａと同様の構成を有しているが、嵌合孔を有していない。コイル支持ばね部１５が接続する振動伝達板固定部２１２の第二部位２１２ｂは、マグネット固定部１１に向かって凸状の孤を形成するように湾曲している。そして、第二部位２１２ｂにおけるコイル支持ばね部１５の接続部分には、嵌合孔２１２ｃが形成されている。本実施の形態では、３つの嵌合孔２１２ｃが配置されている。振動伝達板固定部２１２が上述のような構成を有することによって、コイル支持ばね部１５は、実施の形態１に係る支持部材１０のコイル支持ばね部１５よりも大きい長さを有することができる。よって、振動伝達板固定部２１２に対してコイル固定部１３が振動する場合の振幅が大きくなり得る。 In particular, referring to FIG. 11, the support member 210 has a magnet fixing portion 11, a vibration transmission plate fixing portion 212, a coil fixing portion 13, a magnet supporting spring portion 14, and a coil supporting spring portion 15 arranged in a plane. There is. The first portion 212a of the vibration transmission plate fixing portion 212 to which the magnet support spring portion 14 is connected has the same configuration as the first portion 12a of the vibration transmission plate fixing portion 12 according to the first embodiment, but is fitted. It does not have a hole. The second portion 212b of the vibration transmission plate fixing portion 212 to which the coil support spring portion 15 is connected is curved so as to form a convex arc toward the magnet fixing portion 11. A fitting hole 212c is formed in the connection portion of the coil support spring portion 15 in the second portion 212b. In this embodiment, three fitting holes 212c are arranged. Since the vibration transmission plate fixing portion 212 has the above-described configuration, the coil support spring portion 15 can have a length larger than that of the coil support spring portion 15 of the support member 10 according to the first embodiment. Therefore, the amplitude when the coil fixing portion 13 vibrates with respect to the vibration transmitting plate fixing portion 212 can be increased.

特に、図８、図９及び図１２を参照すると、振動伝達板２１は、振動を伝達する対象物と接触する円板部２１ａと、円板部２１ａの平坦な表面から突出する複数の支持部材固定部２１ｂと、円板部２１ａの上記表面から突出する補剛部２１ｃとを、一体的に含む。 In particular, referring to FIGS. 8, 9 and 12, the vibration transmission plate 21 includes a disk portion 21a that comes into contact with an object that transmits vibration and a plurality of support members that project from the flat surface of the disk portion 21a. The fixing portion 21b and the stiffening portion 21c protruding from the surface of the disk portion 21a are integrally included.

円板部２１ａの中心には、連結シャフト２６が挿通可能な貫通孔２１ａａが形成されている。よって、貫通孔２１ａａを介した連結シャフト２６の設置及び撤去が可能である。複数の支持部材固定部２１ｂは、貫通孔２１ａａの周囲に沿って配置された帯状の突起である。本実施の形態では、不連続な環を形成するように３つの支持部材固定部２１ｂが配置されている。各支持部材固定部２１ｂは、支持部材２１０の振動伝達板固定部２１２の第二部位２１２ｂに対応する位置に配置され、第二部位２１２ｂと同様の平面形状を有している。各支持部材固定部２１ｂは、第二部位２１２ｂの少なくとも一部が載る支持面２１ｂａを、その上面として有している。さらに、各支持部材固定部２１ｂの支持面２１ｂａ上には、１つの嵌合突起２１ｄが一体的に形成されている。各嵌合突起２１ｄは、第二部位２１２ｂの嵌合孔２１２ｃ（図１１参照）と整合する位置に配置され、嵌合孔２１２ｃと嵌合する。補剛部２１ｃは、円板部２１ａの全体にわたって延在する帯状突起であり、支持部材固定部２１ｂよりも低く突出している。本実施の形態では、補剛部２１ｃは、円板部２１ａの周方向及び径方向に延在し、さらに、支持部材２１０の振動伝達板固定部２１２の形状にならうようにも延在し、支持部材固定部２１ｂの剛性を高めている。 A through hole 21aa through which the connecting shaft 26 can be inserted is formed in the center of the disk portion 21a. Therefore, the connecting shaft 26 can be installed and removed via the through hole 21aa. The plurality of support member fixing portions 21b are band-shaped protrusions arranged along the periphery of the through hole 21aa. In this embodiment, three support member fixing portions 21b are arranged so as to form a discontinuous ring. Each support member fixing portion 21b is arranged at a position corresponding to the second portion 212b of the vibration transmission plate fixing portion 212 of the support member 210, and has the same planar shape as the second portion 212b. Each support member fixing portion 21b has a support surface 21ba on which at least a part of the second portion 212b is placed as an upper surface thereof. Further, one fitting projection 21d is integrally formed on the support surface 21ba of each support member fixing portion 21b. Each fitting protrusion 21d is arranged at a position consistent with the fitting hole 212c (see FIG. 11) of the second portion 212b, and fits with the fitting hole 212c. The stiffening portion 21c is a band-shaped protrusion extending over the entire disk portion 21a, and protrudes lower than the support member fixing portion 21b. In the present embodiment, the stiffening portion 21c extends in the circumferential direction and the radial direction of the disc portion 21a, and further extends so as to follow the shape of the vibration transmission plate fixing portion 212 of the support member 210. , The rigidity of the support member fixing portion 21b is increased.

図９及び図１０に示されるように、支持部材２１０のマグネット固定部１１は、組み付けられたマグネット３、外ヨーク４、内ヨーク２５及び連結シャフト２６と一体となって振動するマグネット質量部３１を形成する。支持部材２１０の振動伝達板固定部２１２（図１１参照）の第二部位２１２ｂは、振動伝達板２１と一体となって振動する振動伝達板質量部４１を形成する。 As shown in FIGS. 9 and 10, the magnet fixing portion 11 of the support member 210 includes a magnet mass portion 31 that vibrates integrally with the assembled magnet 3, the outer yoke 4, the inner yoke 25, and the connecting shaft 26. Form. The second portion 212b of the vibration transmission plate fixing portion 212 (see FIG. 11) of the support member 210 forms a vibration transmission plate mass portion 41 that vibrates integrally with the vibration transmission plate 21.

図１１及び図１２を参照すると、支持部材２１０の振動伝達板固定部２１２は、マグネット支持ばね部１４の接続部分を除く一部で、振動伝達板２１の支持部材固定部２１ｂに固定及び支持される。これにより、振動伝達板固定部２１２に対するマグネット固定部１１の自由度が大きくなる。よって、振動伝達板固定部２１２に対してマグネット固定部１１が振動する場合の振幅が大きくなる。さらに、振動伝達板固定部２１２とマグネット固定部１１とを連結する支持部材２１０のバネ定数が低くなることにもなる。従って、実施の形態２に係る振動ドライバ２００は、実施の形態１に係る振動ドライバ１００よりも、振動伝達板２１を、大きい振幅で振動させることができ、且つ低い周波数で振動させることができる。 With reference to FIGS. 11 and 12, the vibration transmission plate fixing portion 212 of the support member 210 is fixed and supported by the support member fixing portion 21b of the vibration transmission plate 21 except for the connecting portion of the magnet support spring portion 14. NS. As a result, the degree of freedom of the magnet fixing portion 11 with respect to the vibration transmitting plate fixing portion 212 is increased. Therefore, the amplitude when the magnet fixing portion 11 vibrates with respect to the vibration transmitting plate fixing portion 212 becomes large. Further, the spring constant of the support member 210 that connects the vibration transmission plate fixing portion 212 and the magnet fixing portion 11 is also lowered. Therefore, the vibration driver 200 according to the second embodiment can vibrate the vibration transmission plate 21 with a larger amplitude and a lower frequency than the vibration driver 100 according to the first embodiment.

また、実施の形態２に係る振動ドライバ２００におけるその他の構成及び動作は、実施の形態１と同様であるため、その説明を省略する。さらに、実施の形態２に係る振動ドライバ２００によると、実施の形態１に係る振動ドライバ１００と同様の効果が得られる。さらに、実施の形態２に係る振動ドライバ２００では、振動伝達板２１の支持部材固定部２１ｂは、不連続な環を形成するように延在する。上述の構成において、支持部材２１０の振動伝達板固定部２１２は、支持部材固定部２１ｂと部分的に接触する。振動伝達板固定部２１２における支持部材固定部２１ｂとの不接触部分である第一部位２１２ａがマグネット支持ばね部１４と共に撓むことができるため、マグネット質量部３１に対する振動伝達板質量部４１の振幅の増大が可能になると共に、振動伝達板質量部４１の振動に発生させ得る共振周波数を下げることが可能になるため、共振周波数の設計の自由度が向上する。 Further, since other configurations and operations in the vibration driver 200 according to the second embodiment are the same as those in the first embodiment, the description thereof will be omitted. Further, according to the vibration driver 200 according to the second embodiment, the same effect as that of the vibration driver 100 according to the first embodiment can be obtained. Further, in the vibration driver 200 according to the second embodiment, the support member fixing portion 21b of the vibration transmission plate 21 extends so as to form a discontinuous ring. In the above configuration, the vibration transmission plate fixing portion 212 of the support member 210 partially contacts the support member fixing portion 21b. Since the first portion 212a, which is a non-contact portion of the vibration transmission plate fixing portion 212 with the support member fixing portion 21b, can bend together with the magnet support spring portion 14, the amplitude of the vibration transmission plate mass portion 41 with respect to the magnet mass portion 31. The resonance frequency that can be generated in the vibration of the vibration transmission plate mass portion 41 can be lowered, so that the degree of freedom in designing the resonance frequency is improved.

（支持部材の変形例）
また、支持部材の変形例として、以下のような構成が挙げられる。具体的には、図１３に示されるように、変形例に係る支持部材３１０では、実施の形態１に係る支持部材１０と比較して、マグネット支持ばね部及びコイル支持ばね部の平面形状が異なっている。なお、図１３は、変形例に係る支持部材３１０の平面図である。つまり、支持部材３１０のマグネット支持ばね部３１４及びコイル支持ばね部３１５が、支持部材３１０の中心から外方に向かって放射状に、曲がりを伴いつつ延在する。(Modification example of support member)
Further, as a modification of the support member, the following configuration can be mentioned. Specifically, as shown in FIG. 13, the support member 310 according to the modified example has different planar shapes of the magnet support spring portion and the coil support spring portion as compared with the support member 10 according to the first embodiment. ing. Note that FIG. 13 is a plan view of the support member 310 according to the modified example. That is, the magnet support spring portion 314 and the coil support spring portion 315 of the support member 310 extend radially outward from the center of the support member 310 with bending.

具体的には、支持部材３１０の各マグネット支持ばね部３１４は、Ｚ形状に屈曲した平面形状を有し、その両端でマグネット固定部１１及び振動伝達板固定部１２と接続している。マグネット支持ばね部３１４及び振動伝達板固定部１２の接続部分は、マグネット支持ばね部３１４及びマグネット固定部１１の接続部分に対して、マグネット固定部１１の貫通孔１１ａの一方の周方向Ａ１にずれて位置している。３つのマグネット支持ばね部３１４は、貫通孔１１ａを中心に、１２０°の角度で回転対称な形状、寸法及び配置構成を有している。 Specifically, each magnet support spring portion 314 of the support member 310 has a planar shape bent into a Z shape, and is connected to the magnet fixing portion 11 and the vibration transmission plate fixing portion 12 at both ends thereof. The connection portion of the magnet support spring portion 314 and the vibration transmission plate fixing portion 12 is displaced in one circumferential direction A1 of the through hole 11a of the magnet fixing portion 11 with respect to the connection portion of the magnet support spring portion 314 and the magnet fixing portion 11. Is located. The three magnet support spring portions 314 have a shape, dimensions, and arrangement configuration that are rotationally symmetric at an angle of 120 ° around the through hole 11a.

支持部材３１０の各コイル支持ばね部３１５は、Ｚ形状に屈曲した平面形状を有し、その両端で振動伝達板固定部１２及びコイル固定部１３と接続している。コイル支持ばね部３１５及びコイル固定部１３の接続部分は、コイル支持ばね部３１５及び振動伝達板固定部１２の接続部分に対して、貫通孔１１ａの周方向Ａ１と反対の周方向Ａ２にずれて位置している。３つのコイル支持ばね部３１５は、マグネット固定部１１の貫通孔１１ａを中心に、１２０°の角度で回転対称な形状、寸法及び配置構成を有している。 Each coil support spring portion 315 of the support member 310 has a planar shape bent into a Z shape, and is connected to the vibration transmission plate fixing portion 12 and the coil fixing portion 13 at both ends thereof. The connection portion of the coil support spring portion 315 and the coil fixing portion 13 is displaced from the connection portion of the coil support spring portion 315 and the vibration transmission plate fixing portion 12 in the circumferential direction A2 opposite to the circumferential direction A1 of the through hole 11a. positioned. The three coil support spring portions 315 have a shape, dimensions, and arrangement configuration that are rotationally symmetric at an angle of 120 ° around the through hole 11a of the magnet fixing portion 11.

各マグネット支持ばね部３１４の両端のずれ方向Ａ１が、各コイル支持ばね部３１５のずれ方向Ａ２と反対であるため、コイル２及びマグネット３間で振動が発生した場合に、支持部材３１０に一方向への回転力が作用することが抑制される。 Since the deviation direction A1 at both ends of each magnet support spring portion 314 is opposite to the deviation direction A2 of each coil support spring portion 315, one direction to the support member 310 when vibration occurs between the coil 2 and the magnet 3. The action of the rotational force on the magnet is suppressed.

また、振動伝達板固定部１２では、マグネット支持ばね部３１４及びコイル支持ばね部３１５の接続部分それぞれに、嵌合孔１２ｃが形成されている。コイル固定部１３では、コイル支持ばね部３１５の接続部分それぞれに、嵌合孔１３ａが形成されている。 Further, in the vibration transmission plate fixing portion 12, fitting holes 12c are formed in each of the connection portions of the magnet support spring portion 314 and the coil support spring portion 315. In the coil fixing portion 13, fitting holes 13a are formed in each of the connecting portions of the coil supporting spring portion 315.

上述のような支持部材３１０では、曲がりを伴って延在するマグネット支持ばね部３１４及びコイル支持ばね部３１５は、それぞれの長さを大きくし、それによりそれらのバネ定数を低くする。このため、振動伝達板固定部１２に対してマグネット固定部１１及びコイル固定部１３が振動する場合の振動の振幅を大きくすることが可能になり、さらに、振動の周波数を低くすることも可能になる。なお、マグネット支持ばね部３１４及びコイル支持ばね部３１５の曲がり形状は、Ｚ形状に限定されず、いかなる形状でもよい。 In the support member 310 as described above, the magnet support spring portion 314 and the coil support spring portion 315 extending with bending increase their respective lengths, thereby lowering their spring constants. Therefore, it is possible to increase the amplitude of vibration when the magnet fixing portion 11 and the coil fixing portion 13 vibrate with respect to the vibration transmission plate fixing portion 12, and further, it is possible to lower the vibration frequency. Become. The bent shape of the magnet support spring portion 314 and the coil support spring portion 315 is not limited to the Z shape, and may be any shape.

（振動ドライバの適用例）
上記の実施の形態及び変形例に係る振動ドライバ１００及び２００の適用例として、図１４に示すような音声通信のためのヘッドセット５０が挙げられる。なお、図１４は、本開示の振動ドライバ１００及び２００の適用例を示す斜視図である。ヘッドセット５０は、人の頭に装着されるヘッドバンド５１と、ヘッドバンド５１の両端から延びる２つのスピーカアーム５２と、ヘッドバンド５１の１つの端部から延びる１つのマイクアーム５３とを備えている。さらに、ヘッドセット５０は、各スピーカアーム５２の端部のスピーカハウジング５２ａ内に振動ドライバ１００又は２００を備え、マイクアーム５３の端部のマイクハウジング５３ａ内に振動ドライバ１００又は２００を備える。ヘッドセット５０が人の頭に装着されたとき、スピーカハウジング５２ａは、耳の近傍の骨に皮膚を介して当接し、マイクハウジング５３ａは、顎の骨に皮膚を介して当接する。スピーカハウジング５２ａ内の振動ドライバ１００又は２００は、音声信号の出力アンプの出力端子に接続され、人体頭部組織に伝達する振動によって音を聴神経に伝達する受話手段のための骨伝導スピーカとして機能する。マイクハウジング５３ａ内の振動ドライバ１００又は２００は、音声信号の入力アンプの入力端子に接続され、人体頭部組織を介して伝達する声の振動を電気信号に変換する送話手段ための骨伝導マイクとして機能する。なお、ヘッドセット５０は、スピーカハウジング５２ａ及びマイクハウジング５３ａの一方のみを備えてもよい。この場合、振動ドライバ１００又は２００は、骨伝導スピーカと骨伝導マイクのいずれか又は両方として機能することが可能である。骨伝導スピーカと骨伝導マイクの両方として動作する場合、電気的スイッチにより、接続先を切り替える事で、半二重の双方向音声通信が可能となる。また、アナログ電話機などに用いられる２線４線変換回路を備える場合や、ＤＳＰ（デジタルシグナルプロセッサ）などの信号処理ハードウエアを備え、エコーキャンセラーなどのソフトウエアによる信号処理を施す場合には、同時に発音された送話信号と受話信号を混合／分離することが可能になり、全二重の双方向音声通信が可能となる。(Application example of vibration driver)
As an application example of the vibration drivers 100 and 200 according to the above-described embodiment and modification, a headset 50 for voice communication as shown in FIG. 14 can be mentioned. Note that FIG. 14 is a perspective view showing an application example of the vibration drivers 100 and 200 of the present disclosure. The headset 50 includes a headband 51 worn on a person's head, two speaker arms 52 extending from both ends of the headband 51, and one microphone arm 53 extending from one end of the headband 51. There is. Further, the headset 50 includes a vibration driver 100 or 200 in the speaker housing 52a at the end of each speaker arm 52, and a vibration driver 100 or 200 in the microphone housing 53a at the end of the microphone arm 53. When the headset 50 is worn on a person's head, the speaker housing 52a contacts the bone near the ear through the skin, and the microphone housing 53a contacts the jaw bone through the skin. The vibration driver 100 or 200 in the speaker housing 52a is connected to the output terminal of the output amplifier of the voice signal, and functions as a bone conduction speaker for the receiving means for transmitting the sound to the auditory nerve by the vibration transmitted to the human head tissue. .. The vibration driver 100 or 200 in the microphone housing 53a is connected to the input terminal of the voice signal input amplifier, and is a bone conduction microphone for a transmission means for converting the vibration of the voice transmitted through the human head tissue into an electric signal. Functions as. The headset 50 may include only one of the speaker housing 52a and the microphone housing 53a. In this case, the vibration driver 100 or 200 can function as either or both of the bone conduction speaker and the bone conduction microphone. When operating as both a bone conduction speaker and a bone conduction microphone, half-duplex two-way voice communication is possible by switching the connection destination with an electrical switch. Further, when a 2-wire 4-wire conversion circuit used for an analog telephone or the like is provided, or when a signal processing hardware such as a DSP (digital signal processor) is provided and signal processing is performed by software such as an echo canceller, the signal processing is performed at the same time. It becomes possible to mix / separate the sounded transmission signal and the received signal, and full-duplex two-way voice communication becomes possible.

（他の実施の形態）
以上のように、本開示における技術の例示として、上記の実施の形態及び変形例を説明した。しかしながら、本開示における技術は、これらに限定されず、適宜、変更、置換、付加、省略などを行った実施の形態にも適用可能である。また、上記実施の形態及び変形例並びに下記の他の実施形態で説明する各構成要素を組み合わせて、新たな実施の形態とすることも可能である。そこで、以下、他の実施の形態を例示する。(Other embodiments)
As described above, as an example of the technique in the present disclosure, the above-described embodiments and modifications have been described. However, the technique in the present disclosure is not limited to these, and can be applied to embodiments in which changes, substitutions, additions, omissions, etc. are made as appropriate. Further, it is also possible to combine the above-described embodiments and modifications and the components described in the other embodiments below to form a new embodiment. Therefore, other embodiments will be illustrated below.

上記実施の形態及び変形例に係る振動ドライバでは、支持部材１０，２１０，３１０の振動伝達板固定部１２，２１２及びコイル固定部１３は、連続する環状の形状を有していたが、これに限定されるものでない。振動伝達板固定部１２，２１２及びコイル固定部１３は、複数の部分に分割されていてもよい。複数の部分に分割された振動伝達板固定部１２，２１２及びコイル固定部１３は、マグネット固定部１１の貫通孔１１ａを中心に、回転対称に配置されること、具体的には、貫通孔１１ａの周方向に均等に配置されることが望ましい。これにより、マグネット固定部１１、振動伝達板固定部１２，２１２及びコイル固定部１３間で、振動の向きを揃えることができる。 In the vibration driver according to the above embodiment and the modified example, the vibration transmission plate fixing portions 12, 212 and the coil fixing portions 13 of the support members 10, 210, 310 have a continuous annular shape. Not limited. The vibration transmission plate fixing portions 12, 212 and the coil fixing portion 13 may be divided into a plurality of parts. The vibration transmission plate fixing portions 12, 212 and the coil fixing portions 13 divided into a plurality of portions are arranged rotationally symmetrically with respect to the through hole 11a of the magnet fixing portion 11, specifically, the through hole 11a. It is desirable that they are evenly distributed in the circumferential direction of. As a result, the directions of vibration can be aligned between the magnet fixing portion 11, the vibration transmission plate fixing portions 12, 212, and the coil fixing portion 13.

さらに、支持部材１０，２１０，３１０では、マグネット固定部１１とコイル固定部１３とは、振動伝達板固定部１２，２１２を介して互いに連結されていたが、これに限定されるものでない。振動伝達板固定部１２，２１２が複数の部分の分割される場合、振動伝達板固定部１２，２１２の１つの部分に、マグネット固定部１１及びコイル固定部１３の一方のみが連結されていてもよい。 Further, in the support members 10, 210, 310, the magnet fixing portion 11 and the coil fixing portion 13 are connected to each other via the vibration transmission plate fixing portions 12, 212, but the present invention is not limited to this. When the vibration transmission plate fixing portions 12, 212 are divided into a plurality of portions, even if only one of the magnet fixing portion 11 and the coil fixing portion 13 is connected to one portion of the vibration transmission plate fixing portions 12, 212. good.

上記実施の形態及び変形例に係る振動ドライバでは、支持部材１０，２１０，３１０において、マグネット固定部１１、振動伝達板固定部１２，２１２及びコイル固定部１３は、この順序で、支持部材１０，２１０，３１０の中心から径方向外側に向かって、配置されていたが、これに限定されず、いかなる順序で配置されてもよい。なお、コイル２の振動が振動伝達板１，２１に伝達しやすいように、振動伝達板固定部１２，２１２とコイル固定部１３とが隣り合って位置することが、望ましい。 In the vibration driver according to the above embodiment and the modified example, in the support members 10, 210, 310, the magnet fixing portion 11, the vibration transmission plate fixing portion 12, 212, and the coil fixing portion 13 are arranged in this order. It was arranged from the center of 210, 310 toward the outside in the radial direction, but the arrangement is not limited to this, and it may be arranged in any order. It is desirable that the vibration transmission plate fixing portions 12, 212 and the coil fixing portions 13 are located adjacent to each other so that the vibration of the coil 2 can be easily transmitted to the vibration transmission plates 1, 21.

上記実施の形態及び変形例に係る振動ドライバでは、支持部材１０，２１０，３１０において、マグネット支持ばね部１４，３１４の数量と、コイル支持ばね部１５，３１５の数量とは、同一であったが、異なっていてもよい。なお、マグネット固定部１１、振動伝達板固定部１２，２１２及びコイル固定部１３の間で伝達する振動の偏りを抑えるために、３つ以上のマグネット支持ばね部１４，３１４と、３つ以上のコイル支持ばね部１５，３１５とが設けられることが、望ましい。 In the vibration driver according to the above embodiment and the modified example, in the support members 10, 210, 310, the quantity of the magnet support spring portions 14,314 and the quantity of the coil support spring portions 15, 315 were the same. , May be different. In addition, in order to suppress the bias of the vibration transmitted between the magnet fixing portion 11, the vibration transmission plate fixing portion 12, 212, and the coil fixing portion 13, three or more magnet support spring portions 14, 314 and three or more magnet support spring portions 14, 314 are used. It is desirable that the coil support spring portions 15, 315 are provided.

上記実施の形態及び変形例に係る振動ドライバでは、振動伝達板１，２１は、支持部材１０，２１０，３１０を挟んで、コイル２及びマグネット３と反対側に配置されていたが、これに限定されるものでない。振動伝達板１，２１、コイル２及びマグネット３が、支持部材１０，２１０，３１０の同じ側に配置されてもよく、振動伝達板１，２１、コイル２及びマグネット３のうちのいずれの１つも、支持部材１０，２１０，３１０を挟んで、他の２つと反対側に配置されてもよい。 In the vibration driver according to the above embodiment and the modified example, the vibration transmission plates 1, 21 are arranged on the opposite sides of the coil 2 and the magnet 3 with the support members 10, 210, 310 sandwiched between them, but the present invention is limited to this. It is not something that is done. The vibration transmission plates 1, 21 and the coil 2 and the magnet 3 may be arranged on the same side of the support members 10, 210 and 310, and any one of the vibration transmission plates 1, 21 and the coil 2 and the magnet 3 may be arranged. , Support members 10, 210, 310 may be arranged on opposite sides to the other two.

上記実施の形態及び変形例に係る振動ドライバでは、支持部材１０，２１０，３１０は、凹凸のない平板状外形を有していたが、これに限定されるものでない。支持部材１０，２１０，３１０の一部又は全部、好適にはマグネット固定部１１、振動伝達板固定部１２，２１２、コイル固定部１３の一部又は全部に、縁端部の折り返しや、エンボス加工、コイニングなどの機械加工を施して、接続部の強度を増加させて、意図しない共振の発生を抑えてもよい。 In the vibration driver according to the above embodiment and the modified example, the support members 10, 210, and 310 have a flat plate-like outer shape without unevenness, but the present invention is not limited to this. Part or all of the support members 10, 210, 310, preferably magnet fixing portion 11, vibration transmission plate fixing portion 12, 212, and part or all of the coil fixing portion 13 are folded or embossed at the edge portion. , Coining or the like may be applied to increase the strength of the connection portion to suppress the occurrence of unintended resonance.

以上のように、本開示における技術の例示として、実施の形態を説明した。そのために、添付図面及び詳細な説明を提供した。 As described above, an embodiment has been described as an example of the technique in the present disclosure. To that end, the accompanying drawings and detailed explanations have been provided.

したがって、添付図面及び詳細な説明に記載された構成要素の中には、課題解決のために必須な構成要素だけでなく、上記技術を例示するために、課題解決のためには必須でない構成要素も含まれ得る。そのため、それらの必須ではない構成要素が添付図面や詳細な説明に記載されていることをもって、直ちに、それらの必須ではない構成要素が必須であるとの認定をするべきではない。 Therefore, among the components described in the attached drawings and the detailed description, not only the components essential for solving the problem but also the components not essential for solving the problem in order to exemplify the above technology. Can also be included. Therefore, the fact that those non-essential components are described in the accompanying drawings or detailed description should not immediately determine that those non-essential components are essential.

また、上述の実施の形態は、本開示における技術を例示するためのものであるから、請求の範囲又はその均等の範囲において種々の変更、置き換え、付加、省略などを行うことができる。 Further, since the above-described embodiment is for exemplifying the technology in the present disclosure, various changes, replacements, additions, omissions, etc. can be made within the scope of the claims or the equivalent scope thereof.

以上説明したように、本開示は、振動伝達板を介して振動を伝達する振動ドライバに有用である。 As described above, the present disclosure is useful for a vibration driver that transmits vibration via a vibration transmission plate.

１，２１ 振動伝達板
１ｂ，２１ｂ 支持部材固定部（支持部材接続部）
２ コイル
３ マグネット
１０，２１０，３１０ 支持部材
１１ マグネット固定部（第１の接続部）
１２，２１２ 振動伝達板固定部（第２の接続部）
１２ａ，２１２ａ 第一部位
１２ｂ，２１２ｂ 第二部位
１３ コイル固定部（第３の接続部）
２０ コイル質量部
３０，３１ マグネット質量部
４０，４１ 振動伝達板質量部
１４，３１４ マグネット支持ばね部（連結部、第１の連結部）
１５，３１５ コイル支持ばね部（連結部、第２の連結部）
１００，２００ 振動ドライバ1,21 Vibration transmission plate 1b, 21b Support member fixing part (support member connection part)
2 Coil 3 Magnet 10,210,310 Support member 11 Magnet fixing part (first connection part)
12,212 Vibration transmission plate fixing part (second connection part)
12a, 212a 1st part 12b, 212b 2nd part 13 Coil fixing part (3rd connection part)
20 Coil mass part 30,31 Magnet mass part 40,41 Vibration transmission plate mass part 14,314 Magnet support spring part (connecting part, first connecting part)
15,315 Coil support spring part (connecting part, second connecting part)
100,200 vibration driver

Claims (13)

コイルと、
マグネットと、
前記コイル及び前記マグネット間の振動を伝達する振動伝達板と、
前記コイル、前記マグネット及び前記振動伝達板を支持する支持部材と
を備え、
前記支持部材は、
前記マグネットに接続される第１の接続部と、
前記振動伝達板に接続される第２の接続部と、
前記コイルに接続される第３の接続部と、
前記第１の接続部、前記第２の接続部及び前記第３の接続部を互いに連結し且つ弾性を有する連結部と
を含み、
前記第１の接続部、前記第２の接続部及び前記第３の接続部は、横並びに且つ平面的に配置される振動ドライバ。 With the coil
With a magnet
A vibration transmission plate that transmits vibration between the coil and the magnet,
The coil, the magnet, and the support member for supporting the vibration transmission plate are provided.
The support member
The first connection part connected to the magnet and
A second connection portion connected to the vibration transmission plate and
With the third connection part connected to the coil,
The first connecting portion, the second connecting portion, and the connecting portion connecting the third connecting portion to each other and having elasticity are included.
The first connection portion, the second connection portion, and the third connection portion are vibration drivers arranged side by side and in a plane. コイルと、
マグネットと、
前記コイル及び前記マグネット間の振動を伝達する振動伝達板と、
前記コイル、前記マグネット及び前記振動伝達板を支持する支持部材と
を備え、
前記支持部材は、
前記マグネットに接続される第１の接続部と、
前記振動伝達板に接続される第２の接続部と、
前記コイルに接続される第３の接続部と、
前記第１の接続部、前記第２の接続部及び前記第３の接続部を互いに連結し且つ弾性を有する連結部と
を一体的に含み、
前記第１の接続部、前記第２の接続部及び前記第３の接続部は、横並びに配置される振動ドライバ。 With the coil
With a magnet
A vibration transmission plate that transmits vibration between the coil and the magnet,
The coil, the magnet, and the support member for supporting the vibration transmission plate are provided.
The support member
The first connection part connected to the magnet and
A second connection portion connected to the vibration transmission plate and
With the third connection part connected to the coil,
The first connecting portion, the second connecting portion, and the connecting portion connecting the third connecting portion to each other and having elasticity are integrally included.
The first connection portion, the second connection portion, and the third connection portion are vibration drivers arranged side by side. 前記第１の接続部、前記第２の接続部及び前記第３の接続部は、平面的に配置される
請求項２に記載の振動ドライバ。 The vibration driver according to claim 2, wherein the first connection portion, the second connection portion, and the third connection portion are arranged in a plane. 前記第１の接続部、前記第２の接続部、前記第３の接続部及び前記連結部は、板状の形状を有する
請求項１〜３のいずれか一項に記載の振動ドライバ。 The vibration driver according to any one of claims 1 to 3, wherein the first connecting portion, the second connecting portion, the third connecting portion, and the connecting portion have a plate-like shape. 前記連結部は、前記第１の接続部、前記第２の接続部及び前記第３の接続部のうちの２つを連結する第１の連結部と、前記第１の接続部、前記第２の接続部及び前記第３の接続部のうちの前記第１の連結部が連結する２つとは異なる組み合わせの２つを連結する第２の連結部とを含み、
前記第１の接続部、前記第２の接続部及び前記第３の接続部のうちの前記第１の連結部及び前記第２の連結部が接続する接続部には、前記第１の連結部及び前記第２の連結部が、互いに異なる位置で接続し、
前記第２の接続部は、前記第１の接続部と前記第３の接続部との間に配置され、
前記第１の連結部は、前記第２の接続部と前記第１の接続部とを連結し、
前記第２の連結部は、前記第２の接続部と前記第３の接続部とを連結し、
前記第２の接続部における前記第１の連結部との接続部分は、前記第２の接続部における前記第２の連結部との接続部分よりも、前記第１の接続部から離れて位置する
請求項１〜４のいずれか一項に記載の振動ドライバ。 The connecting portion includes a first connecting portion that connects two of the first connecting portion, the second connecting portion, and the third connecting portion, and the first connecting portion and the second connecting portion. And a second connecting part that connects two of the third connecting parts in a combination different from the two that the first connecting part connects.
The first connecting portion is attached to the connecting portion to which the first connecting portion and the second connecting portion of the first connecting portion, the second connecting portion and the third connecting portion are connected. And the second connecting portion is connected at different positions from each other.
The second connection portion is arranged between the first connection portion and the third connection portion.
The first connecting portion connects the second connecting portion and the first connecting portion.
The second connecting portion connects the second connecting portion and the third connecting portion.
The connection portion of the second connecting portion with the first connecting portion is located farther from the first connecting portion than the connecting portion of the second connecting portion with the second connecting portion. The vibration driver according to any one of claims 1 to 4. 複数の前記第１の連結部と複数の前記第２の連結部とが設けられ、
前記複数の第１の連結部及び前記複数の第２の連結部は、前記支持部材の中心に関して
回転対称に配置される
請求項５に記載の振動ドライバ。 A plurality of the first connecting portions and a plurality of the second connecting portions are provided.
The vibration driver according to claim 5, wherein the plurality of first connecting portions and the plurality of second connecting portions are arranged rotationally symmetrically with respect to the center of the support member. 前記第２の接続部は、前記支持部材の中心に関して回転対称である形状を有する
請求項６に記載の振動ドライバ。 The vibration driver according to claim 6, wherein the second connecting portion has a shape that is rotationally symmetric with respect to the center of the support member. 前記第１の連結部及び前記第２の連結部の少なくとも一方は、前記支持部材の中心から外方に向かって放射状に、曲がりを伴いつつ延在する
請求項５〜７のいずれか一項に記載の振動ドライバ。 According to any one of claims 5 to 7, at least one of the first connecting portion and the second connecting portion extends radially outward from the center of the support member with a bend. The listed vibration driver. 前記第３の接続部は、円環状形状を有する
請求項１〜８のいずれか一項に記載の振動ドライバ。 The vibration driver according to any one of claims 1 to 8, wherein the third connection portion has an annular shape. 前記第１の接続部、前記第２の接続部及び前記第３の接続部は、同軸上に配置される
請求項１〜９のいずれか一項に記載の振動ドライバ。 The vibration driver according to any one of claims 1 to 9, wherein the first connection portion, the second connection portion, and the third connection portion are coaxially arranged. 前記振動伝達板は、前記支持部材と接続される支持部材接続部を有し、
前記第２の接続部は、前記支持部材接続部に沿って延在する
請求項１〜１０のいずれか一項に記載の振動ドライバ。 The vibration transmission plate has a support member connecting portion connected to the support member, and has a support member connecting portion.
The vibration driver according to any one of claims 1 to 10, wherein the second connecting portion extends along the supporting member connecting portion. 前記支持部材接続部は、連続する環を形成するように延在する
請求項１１に記載の振動ドライバ。 The vibration driver according to claim 11, wherein the support member connecting portion extends so as to form a continuous ring. 前記支持部材接続部は、不連続な環を形成するように延在する
請求項１１に記載の振動ドライバ。 The support member connecting portion, the vibration driver according to claim 1 1 which extends to form a discontinuous ring.
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