JP3632973B2 - Stick vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stick-type vacuum cleaner, and more particularly to a stick-type vacuum cleaner that can be stored upright when not in use.
[0002]
[Problems to be solved by the invention]
Conventionally, as this type of stick type vacuum cleaner, for example, the one described in JP-A-8-173363 is known. This is provided with a floor brush (suction port) below the vacuum cleaner body, a dust collection chamber (dust collection mechanism) near the bottom inside the vacuum cleaner body, and an electric blower and cord reel near the top inside the vacuum cleaner body. Is provided. And this stick type vacuum cleaner draws the cord from the cord reel when in use, connects it to a household AC power source, and drives the electric blower to suck the dust together with the airflow from the floor brush. The floor and the like are cleaned by capturing with. In addition, the stick type vacuum cleaner is stored by winding a cord around a cord reel when not in use and allowing the cleaner body to stand on its own with the floor brush down.
[0003]
However, these stick-type vacuum cleaners have heavy electric blowers and cord reels located near the upper part of the vacuum cleaner body, which makes the center of gravity high and unstable, making it easy to collapse during storage. There was a fear that it would end up. Further, the high center of gravity of the stick type vacuum cleaner means that the center of gravity is near the user's hand, and the user may feel that the vacuum cleaner is difficult to operate.
[0004]
Therefore, it is conceivable to adopt a structure as described in JP-A-6-209881. This is provided with a floor nozzle (suction port) below the main body (vacuum cleaner body), a dust collecting chamber (dust collecting mechanism) from the center of the main body to the upper side, and an electric blower at the lower side in the main body. A cord winding device (cord reel) is provided above the main body. However, in these stick type vacuum cleaners, the airflow containing dust sucked from the floor nozzle flows through the dust collection chamber closer to the upper part in the main body, and flows to the electric blower closer to the lower part in the main body. There is a problem that the pressure loss increases as the length increases. In particular, in the case of a cyclone type vacuum cleaner that separates airflow and dust in a cyclone cylinder, in principle, it is necessary to introduce the airflow into the cyclone cylinder from above and to discharge the airflow from above to the outside of the cyclone cylinder. For this reason, there is a problem that the path of the air flow becomes remarkably long and the pressure loss becomes larger.
[0005]
An object of the present invention is to solve the above problems and to provide a stick type vacuum cleaner capable of making the center of gravity as low as possible while preventing the deterioration of performance by shortening the path of the airflow as much as possible.
[0006]
[Means for Solving the Problems]
The stick type vacuum cleaner of the present invention comprises a vacuum cleaner body provided with a suction port below, a dust collecting mechanism provided in the vacuum cleaner body, an electric blower, and a cord reel for supplying power to the electric blower. the collector is provided dust mechanism below and the cleaner body at above said inlet, provided with the electric blower above the dust collecting mechanism, provided the cord reel downwardly toward the cleaner body, wherein An exhaust passage extending from the electric blower to the exhaust opening opened below the cleaner body is formed in the cleaner body, and a widened portion is formed in the exhaust passage, and the cord reel is accommodated in the widened portion. Is.
[0007]
By configuring the present invention as described above, the air flow sucked from the suction port below the cleaner body passes through the dust collection mechanism above the suction port, and further the electric blower above the dust collection mechanism. As a result, the air flow path from the air inlet to the electric blower is formed short, and a heavy-weight cord reel is arranged near the lower part of the vacuum cleaner body, so that the entire stick-type vacuum cleaner The position of the center of gravity is low. And after the airflow discharged | emitted from the electric blower passes the exhaust path and cools a cord reel, it is discharged | emitted outside from the exhaust port below a cleaner body. Moreover, the flow velocity of an airflow falls because the airflow which distribute | circulates an exhaust path spreads in the wide part which accommodated the cord reel.
[0008]
Furthermore, in the stick type vacuum cleaner of the present invention, the exhaust port is provided downward in the widened portion.
[0009]
By configuring the present invention as described above, the airflow is exhausted downward from the exhaust port.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2. Reference numeral 1 denotes a stick type vacuum cleaner according to the present invention, which is a vertically long vacuum cleaner body 2, a nozzle 3 serving as a suction port attached to the lower side of the cleaner body 2, and an upper side of the cleaner body 2. And a handle 4. The nozzle 3 is detachably attached to a first connection portion 5 formed below the cleaner body 2. And the engaging part 6 for fixing the cyclone 16 mentioned later is provided in the lower part of the said cleaner body 2. As shown in FIG. The handle 4 is pivotably supported by a rotating portion 7 formed above the cleaner body 2 and is held in a state where the handle 4 is raised at the base end side of the handle 4. A hook 8 is provided to engage the engagement portion 9 formed on the upper portion of the cleaner body 2. An operation switch 10 is provided in the vicinity of the grip portion 4a of the handle 4. By operating this operation switch 10, electric power is supplied / interrupted to an electric blower 18 described later. .
[0011]
A second connection portion 11 is formed on the lower side surface of the cleaner body 2 in communication with the first connection portion 5. A connection port 13 provided on the distal end side of the flexible suction hose 12 is detachably attached to the second connection portion 11. Further, the proximal end side of the suction hose 12 is fixed to a third connecting portion 14 formed on the side surface of the central portion of the cleaner body 2. Further, the third connecting portion 14 is formed so as to communicate with the eddy current generating means 17 of the cyclone 16 as a dust collecting mechanism that is detachably attached to the cleaner body 2. Then, the above the swirl generating means 17, situated below the pivot portion 7 is the electric blower 18 is disposed in the cleaner main body 2. The electric blower 18 has an axis 19 disposed in the vertical direction of the cleaner body 2.
[0012]
The cyclone 16 has a double structure consisting of an outer cyclone cylinder 20 as an outer cylinder and an inner cyclone cylinder 21 as an inner cylinder with an axis 19 as a center, and forms a dust collecting mechanism. The inner cyclone cylinder 21 has a substantially conical shape that tapers toward the tip, and the eddy current generating means 17 provided at the base end of the inner cyclone cylinder 21 introduces air from the third connection part 14 side to generate a vortex. And an external vortex generator 22 that is led out to the outer cyclone cylinder 20 and an inner vortex generator that introduces air that has risen from the bottom, that is, from the bottom of the outer cyclone cylinder 20 to generate a vortex flow that is led out to the inner cyclone cylinder 21 The device 23 is integrally formed. Further, a mesh-like filter 24 is provided at the center of the base end of the inner cyclone cylinder 21, and the inner side of the inner cyclone cylinder 21 and the upstream side 18 a of the electric blower 18 communicate with each other through the filter 24.
[0013]
Further, an exhaust passage 25 connecting one end to the downstream side 18b disposed sideways on the electric blower 18 is integrally formed with the cleaner body 2 in the vertical direction on the back side of the cleaner body 2, and the lower end thereof A nozzle 3 is attached. The exhaust passage 25 has a duct shape, and its width A is substantially the same along the vertical direction, or is formed in a tapered shape with the lower portion being slightly wider, and the lower portion of the exhaust passage 25 and thus the vacuum cleaner. A cord reel 26 for supplying electric power to the electric blower 18 is accommodated near the lower side of the main body 2. The cord reel 26 is rotatably provided with a reel body 28 so that the axis 27 is substantially perpendicular to the axis 19, and a power cord 29 is wound around the reel body 28 and accommodated. For this purpose, in the exhaust passage 25, in order to accommodate the cord reel 26 larger than the width A at the attachment position of the cord reel 26, the widened portion 30 formed in the width B larger than the width A is provided via the step portions 30a on both sides. Is provided. A discharge port 31 of the exhaust passage 25 is opened obliquely downward below the cleaner body 2 integrally with the widened portion 29 below the cord reel 26. A drawer port 32 for the plug 29 a of the power cord 29 is formed in the vicinity of the cord reel 26 of the cleaner body 2.
[0014]
Next, the operation of the above configuration will be described. Set the outer cyclone cylinder 20 and the inner cyclone cylinder 21 etc. in the vacuum cleaner body 2, and further pull out the power cord 29 from the outlet 32 and connect the plug 29a to the outlet, and then operate the operation switch 10 to connect the electric blower 18 When driven, air containing dust is sucked from the nozzle 3, and the first connecting portion 5, the second connecting portion 11, the suction hose 12, the third connecting portion 14, and the outer vortex generating device 17 of the vortex generating means 17. It goes through the outer cyclone cylinder 20 through. At this time, the inflowing air is guided by the outer vortex generator 22 to become a vortex that descends spirally along the inner peripheral surface of the outer cyclone cylinder 20, and relatively heavy dust contained in the vortex is centrifuged by the vortex. Removed by force. Then, when the vortex reaches the bottom of the outer cyclone cylinder 20, the vortex flows upward and rises spirally along the outer peripheral surface of the inner cyclone cylinder 21. Here, the vortex rising along the outer peripheral surface of the inner cyclone cylinder 21 is guided by the inner vortex generating device 23, and becomes a vortex descending spirally again along the inner peripheral surface of the inner cyclone cylinder 21. And when it reaches the bottom, the vortex turns upward near the center. At this time, relatively light dust such as cotton dust mixed with the vortex and fine dust are separated from the vortex and collected at the bottom. Moreover, vortex flow is fine dust removed via a mesh filter over 24, the exhaust passage further toward the upstream side 18a of the electric blower 18 in the upper position, from the downstream side 18b downwardly elevated in the inner cyclone barrel 21 The air is exhausted from the discharge port 31 through 25. When passing through the exhaust passage 25, the airflow passes through the cord reel 26 provided in the widened portion 30 to cool the cord reel 26, and the speed of the airflow decreases, and the discharge port 31 integrated with the widened portion 30 is provided. And exhausted diagonally downward. Moreover, noise is reduced by reducing the airflow speed.
[0015]
After the cleaning is completed in this way, the outer cyclone cylinder 20 and the inner cyclone cylinder 21 are removed from the cleaner body 2. Then, by removing the inner cyclone cylinder 21 from the outer cyclone cylinder 20, the dust accumulated in the outer cyclone cylinder 20 is thrown into the trash box, and the dust is removed.
[0016]
As mentioned above, in the said Example, the vacuum cleaner main body 2 in which the nozzle 3 was provided below, the cyclone 16 which forms the dust collection mechanism provided in this vacuum cleaner main body 2, the electric blower 18, and this electric blower The cyclone 16 is provided above the nozzle 3 and below the cleaner body 2; the electric blower 18 is provided above the cyclone 16; A reel 26 is provided near the lower side of the cleaner body 2, and the air flow sucked from the nozzle 3 below the cleaner body 2 passes through the cyclone 16 above the nozzle 3, and further from the cyclone 16. Further, by reaching the upper electric blower 18, it is possible to prevent the flow path of the air flow from the nozzle 3 to the electric blower 18 from being shortened and increasing the pressure loss. Furthermore, the heavy weight cord reel 26 is arranged near the lower part of the cleaner body 2, so that the center of gravity of the stick-type cleaner 1 is lowered.
[0017]
In addition, an exhaust passage 25 extending from the electric blower 18 to an exhaust port 31 that opens below the cleaner body 2 is formed in the cleaner body 2, and the cord reel 26 is disposed in the exhaust passage 2. After the airflow discharged from the blower 18 cools the cord reel 26 through the exhaust passage 25, it is discharged to the outside from the exhaust port 31 below the cleaner body 2, and the exhaust from the exhaust port 31 is discharged below the cleaner body 2 To release.
[0018]
Further, the widening portion 30 is formed in the exhaust passage 25, and the cord reel 26 is accommodated in the widening portion 30, so that the flow velocity of the airflow can be reduced, noise can be reduced, and the cord reel 26 can be attached easily.
[0019]
Moreover, by providing the exhaust port 31 downward in the widened portion 29, it is possible to exhaust downward while keeping the velocity of the airflow at the exhaust port 31 low.
[0020]
In addition, this invention is not limited to the said Example, A various deformation | transformation is possible. For example, in the above embodiment, the cord reel is provided at a position behind the cyclone, but may be provided at a position below the cyclone. Further, although a double cyclone is used as the dust collector mechanism, a single cyclone may be used, or a dust collecting mechanism other than the cyclone may be used.
[0021]
【The invention's effect】
The stick type vacuum cleaner of the present invention comprises a vacuum cleaner body provided with a suction port below, a dust collecting mechanism provided in the vacuum cleaner body, an electric blower, and a cord reel for supplying power to the electric blower. the collector is provided dust mechanism below and the cleaner body at above said inlet, provided with the electric blower above the dust collecting mechanism, provided the cord reel downwardly toward the cleaner body, wherein An exhaust passage extending from the electric blower to the exhaust opening opened below the cleaner body is formed in the cleaner body, and a widened portion is formed in the exhaust passage, and the cord reel is accommodated in the widened portion. The air flow sucked from the suction port below the cleaner body passes through the dust collection mechanism above the suction port and further reaches the electric blower above the dust collection mechanism. The air flow path from the suction port to the electric blower is formed short, and it can prevent the dust collection performance from being lowered, and the heavy weight cord reel is arranged near the lower part of the vacuum cleaner body. Since the center of gravity of the entire vacuum cleaner is at a low position, the vacuum cleaner can be kept stable during storage and can be operated with a light operational feeling by the user during use. Furthermore, the stick type vacuum cleaner of the present invention has a widened portion formed in the exhaust passage, and the cord reel is accommodated in the widened portion, and the widened air current flowing through the exhaust passage accommodates the cord reel. Since the flow velocity of the airflow is reduced by spreading at the portion, noise can be reduced.
[0022]
Moreover, the stick type vacuum cleaner of the present invention is the stick type vacuum cleaner according to claim 2 , wherein the exhaust port is provided downward in the widened portion, and the exhaust is discharged downward from the exhaust port so that the exhaust is not directly sucked. it can.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of the present invention.
FIG. 2 is a rear view showing an embodiment of the present invention.
[Explanation of symbols]
2 Vacuum cleaner body 3 Nozzle (suction port)
16 Cyclone (dust collection mechanism)
18 Electric blower
25 Exhaust channel
26 Cord reel
30 Widening part
31 Exhaust port

Claims (2)

A vacuum cleaner main body provided with a suction port below, a dust collecting mechanism provided in the vacuum cleaner main body, an electric blower, and a cord reel for supplying power to the electric blower, and the dust collecting mechanism from the suction port Is provided above and below the cleaner body, the electric blower is provided above the dust collecting mechanism, the cord reel is provided near the lower part of the cleaner body, and the electric blower is provided below the cleaner body. A stick type vacuum cleaner characterized in that an exhaust passage leading to an exhaust port opened in the interior of the vacuum cleaner body is formed in the main body of the vacuum cleaner, a widened portion is formed in the exhaust passage, and the cord reel is accommodated in the widened portion. . The stick type vacuum cleaner according to claim 1, wherein the exhaust port is provided downward in the widened portion .

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