JPH0889451A - Self-mobile cleaner - Google Patents

Abstract

PURPOSE: To enable a self-mobile cleaner to clean efficiently by reducing an uncleaned area by the wall in front of the mobile cleaner while moving and allow low frequency of disposal of dust by having a large capacity of dust. CONSTITUTION: A main body 3 of a self-mobile cleaner comprises a suctional apparatus for sucking dust. This suctional apparatus comprises a suction opening 7, a vacuum member 9, a first dust container, a second dust container 11 and a last dust container 12. The suction opening 7 facing a floor surface F is located on the bottom 3a of the main body 3. The first dust container for containing large particles of dust and the last dust container 12 having a dust bag 13 for containing fine dust are located between the suction opening 7 and the vacuum member 9. The first dust container is positioned on the bottom of the main body 3 at a site close to the suction opening 7. The second dust container 11 for storing middle-class dust which is lightweight as compared to heavy dust is located between the first dust container and the last dust container 12 at a site higher than that of the first dust container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled vacuum cleaner, which reduces the uncleaned area generated near the wall in front of the traveling direction to improve the cleaning efficiency and enhances the dust storage capacity to reduce the frequency of dust disposal. A self-propelled vacuum cleaner that can be reduced.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a self-propelled cleaner which has a traveling function and which can clean the floor surface unattended. Such a vacuum cleaner, for example, as shown in FIG. 5, has wheels b and c that are driven and steered by a drive motor on a vehicle body a.
And a vacuum tool d and a suction port e for sucking dust by the suction force of the vacuum tool d are provided in the vehicle body a, and a flow path f between the vacuum tool d and the suction port e is provided. Is located in the vicinity of the suction port e, and the lower dust collecting part g
Further, an upper dust collecting section h using a paper pack for collecting dust is provided at a high place of the vehicle body a near the vacuum tool d.

Therefore, the coarse dust is collected in the dust collecting portion g below the suction port e, and the fine dust is collected in the upper dust collecting portion h near the vacuum tool d.

[0004]

However, since the coarse dust is bulky, it is necessary to increase the dust collecting volume in the lower dust collecting portion g, and the length l of the dust collecting portion in the traveling direction is inevitably required. Grows larger.

As a result, the distance between the suction port e and the front end of the vehicle body a becomes long. As a result, a large uncleaned area is formed in the front portion in the traveling direction when cleaning the surface facing the wall, which causes a problem of poor cleaning performance. is there.

As a result of repeated research aimed at reducing the uncleaned area, the inventors have provided a dust collecting section for accommodating intermediate-grade dust between the upper and lower dust collecting sections, so that Part of the storage capacity of the dust collection part is also borne by the dust collection part of this intermediate grade waste, the volume of the lower dust collection part can be reduced, and it is possible to increase the overall request for dust collection The inventors have found that the frequency of occurrence can be reduced, and have completed the present invention.

The present invention reduces the uncleaned area near the wall, enhances the cleaning efficiency, enhances the capacity of storing dust in the body of the vehicle body, and reduces the frequency of dust disposal, thereby improving the work efficiency. The purpose is to provide a vacuum cleaner.

[0008]

SUMMARY OF THE INVENTION The present invention is a self-propelled vacuum cleaner in which wheels for traveling and steering are arranged on a vehicle body having a suction device for sucking dust. Between the suction port provided at the bottom of the vehicle body and opening toward the floor surface and the vacuum tool disposed on the vehicle body, a first chamber for storing rough dust is provided near the suction port and at the bottom of the vehicle body. A dust collecting section and a final dust collecting section having a dust collecting bag for accommodating fine dust are provided, and an intermediate-grade dust that is lighter than the heavy dust between the first dust collecting section and the final dust collecting section. The self-propelled vacuum cleaner is characterized in that a second dust collecting section for storing the above is provided at a higher place than the first dust collecting section.

It is preferable that the vacuum tool is provided with a speed change means capable of adjusting the suction air volume by operation.

[0010]

With the above-described structure, the rough dust and the intermediate-grade dust, which have been conventionally stored only in the first dust-collecting unit, are classified into the first dust-collecting unit and the intermediate-grade dust into the second dust-collecting unit. The dust is separately collected in the dust collecting section. Therefore, the storage volume of the first dust collecting portion, particularly the length L in the traveling direction of the first dust collecting portion, can be reduced, so that the uncleaned area generated near the wall of the standing wall portion located in front of the vehicle body in the traveling direction is reduced. The cleaning efficiency can be improved.

The first dust collecting portion is provided on the bottom of the vehicle body and the second dust collecting portion is
Since the dust collecting section of 1 is provided at a higher place than the first dust collecting section, it becomes easy to separately collect rough dust and intermediate dust.

Further, since the second dust collecting portion for collecting the intermediate dust, which is the largest amount of dust, is disposed inside the body of the vehicle body, the volume of the dust housed in the vehicle body is increased as a whole, and the dust is discarded. It is possible to reduce the number of times and improve work efficiency.

In addition, by providing the second dust collecting portion, the burden on the final dust collecting portion can be reduced, and the dust bag, which is a consumable item, can be saved.

When the suction air volume of the vacuum tool can be adjusted, the collection ratio to each dust collecting portion can be arbitrarily changed, the number of times of dust disposal can be further reduced, and the noise generated from the vacuum tool can be reduced. It is possible to suppress and save power consumption.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3, a self-propelled cleaner 1 includes a vehicle body 3 having a suction device 2 for sucking dust, and a wheel composed of a pair of drive wheels 4 and 4 and caster wheels 5 for steering a vehicle. There is.

Each of the drive wheels 4 is a motor 2 with a speed reducer.
1 and the individual speed reducer motors 21 are connected to the control device 2
2 controls the vehicle so that it can travel along a predetermined traveling course. Further, the traveling direction of the vehicle body 3 is changed based on the rotation difference between the left and right drive wheels 4, 4. The speed reducer-equipped motor 21 uses a battery BA mounted on the vehicle body 3 as a power source. The caster wheel 5 ensures the stability of the drive wheels 4 and 4.

A suction device 2 is arranged on the vehicle body 3. The suction device 2 is provided on the bottom portion 3a of the vehicle body 3,
By connecting a suction pipe 7 that opens toward the floor F and a vacuum tool 9 arranged inside the vehicle body 3 with a communication pipe 8, the vacuum tool 9 operates to suck air from the suction port 7. Can be done.

The communication pipe 8 has a first dust collecting portion 10 for storing rough dust from the upstream side to the downstream side, that is, from the suction port 7 side toward the vacuum tool 9 side, and a second dust collecting portion for storing intermediate-grade dust. Section and the final dust collecting section 12 for accommodating fine dust, respectively.

The first dust collecting portion 10 is the bottom portion 3 of the vehicle body 3.
It is provided on the box-shaped body 23 which is provided under a and forms the suction port 7. The box-shaped body 23 is provided in front of the suction port 7 in the traveling direction, and is partitioned by a partition plate 24 that traverses the vehicle body 4, thereby forming an upper open container shape located at the front end of the vehicle body 3 in the traveling direction. Rubbish having a large volume or a heavy weight is stored.

Further, in the present embodiment, a rotary brush 25 is provided inside the box-like body and in contact with the floor surface at the suction port 7. The rotary brush 25 rotates on the floor surface F by using a motor or the like. It is possible to sweep up the attached dust.

The second dust collecting section 11 is a box 26 which is arranged at a higher place than the first dust collecting section 10 and which can be sealed and has a relatively large internal volume. An inlet 27 leading to the first dust collecting portion 10 and an outlet 29 leading to the final dust collecting portion 12 are formed at the upper part of the box-like body 26.

The inlet 27 is provided with a baffle plate 30 for guiding the intermediate dust that flows in through the first dust collecting portion 10 toward the bottom portion 6a of the box-shaped body 26, while the outlet 29 is provided with the wire mesh 3. Prevents intermediate trash from being washed away upstream.

The final dust collecting section 12 has a second dust collecting section 11
Intake port 32 leading to the exhaust port 3 and exhaust port 3 leading to the vacuum tool 9
3 is an airtight container body in which a dust bag 13 opened at the intake port 32 is housed.

The dust bag 13 is a breathable cloth or paper bag body that can store the fine dust that has reached through the second dust collecting section 11 in the dust bag 13 and the vacuum bag 9 The dust is collected by the drive and the air is discharged from the exhaust port 33.

The vacuum tool 9 comprises a blower 34 whose intake end communicates with the final dust collecting portion 12 to the exhaust port 32, and a motor M for driving the blower 34. An exhaust pipe 35 extending outside the vehicle body 3 is connected to the blower 34.

The motor M is the battery B in this embodiment.
A direct current shunt motor having A as a power source, and the motor M includes a speed changing unit 14.

The shifting means 14 has a motor M as shown in FIG.
By inserting two resistors R1 in series with the switch PB and closing the relay X1 by operating the switch PB, the resistor R1 is short-circuited, and the voltage of the motor M is increased to achieve high-speed rotation.
Further, by opening the relay X1 and inserting the R1 in series with the motor M, the voltage of the motor M decreases and the motor rotates at a low speed.

Further, the transmission means 14 is a switch PB whose frequency oscillated from the chopper control device V connected in parallel to the motor M is set to the frequency f1 and the frequency f2.
The speed conversion of the motor M may be selectively performed by operating the relay X1a by the selection operation of a. Frequency f1
And the frequency f2 can be arbitrarily set by the chopper control device.

As the shifting means, a mechanical transmission such as a gear transmission may be interposed between the blower 34 and the motor M, and the air volume may be adjusted by changing the rotational speed of the output shaft of the transmission. Good. Further, the gear shifting may be performed in a plurality of gears exceeding two gears, and further, it is possible to change the power supply current from direct current to alternating current and then to perform continuously variable shift by inverter control.

However, when the motor M is driven, the suction port 7
The air located in the air is sucked by the blower 34. Of the dust sucked together with the air from the suction port 7, heavy dust is collected in the first dust collecting unit 10, intermediate dust is collected in the second dust collecting unit, and fine dust is collected in the final dust collecting unit 12. It is stored in a dust bag.

As described above, since the dust is classified and collected according to the size of the dust, the dust can be efficiently stored in a large amount in the vehicle body 3, and the first dust collecting portion 10 located at the bottom of the vehicle body 3 is Since it can be distributed and stored in the remaining dust collecting portion, the size can be reduced.

Further, by providing the speed change means 14 on the vacuum tool 9 as in this embodiment, a large amount of dust is collected in the first, second and final dust collecting sections 10, 11 and 12. Can be adjusted.

[0033]

As described above, the self-propelled vacuum cleaner according to the present invention has the second dust collection for storing intermediate-grade dust between the first dust collection section and the final dust collection section provided at the bottom of the vehicle body. Since the part is provided at a position higher than the first dust collecting part, the amount of dust accommodated increases, the number of times the dust is discarded is reduced, and moreover, the size of the dust enables sorting and collection, and the work efficiency can be improved.

Further, as compared with the conventional structure, the length of the first dust collecting portion can be shortened, and the uncleaned area generated near the wall of the standing wall portion located in front of the traveling direction can be reduced to improve the cleaning efficiency. improves.

Further, when the vacuum device 9 is provided with a speed changing means, it can be distributed to each dust collecting portion according to the amount of dust, so that the dust can be more efficiently accommodated and the noise and energy can be saved. It becomes possible to promote.

[Brief description of drawings]

FIG. 1 is a sectional view in a traveling direction showing an embodiment of the present invention.

FIG. 2 is a horizontal sectional view thereof.

FIG. 3 is a wiring diagram schematically illustrating an example of controlling a motor of a vacuum tool.

FIG. 4 is a wiring diagram schematically showing another example of control of a motor of a vacuum tool.

FIG. 5 is a sectional view in a traveling direction showing a conventional technique.

[Explanation of symbols]

 2 Suction device 3 Body part 3a Bottom part 4 and 5 Wheel 7 Suction port 9 Vacuum tool 10 First dust collecting part 11 Second dust collecting part 12 Final dust collecting part 13 Dust collecting bag 14 Transmission means F Floor surface

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Chen Akebono 2-1-1, Higashijinzou, Nagaokakyo-shi, Kyoto

Claims (2)

[Claims] 1. A self-propelled cleaner having a vehicle body equipped with a suction device for sucking dust and having wheels for traveling and steering arranged thereon, wherein the suction device is provided on the bottom of the vehicle body and is attached to the floor. A first dust collecting portion for storing rough dust, which is arranged near the suction opening and at the bottom of the vehicle body between the suction opening that opens toward the body and the vacuum tool arranged in the vehicle body, and a dust bag. And a final dust collecting section for accommodating fine dust and storing intermediate dust that is lighter than the heavy dust between the first dust collecting section and the final dust collecting section. A self-propelled vacuum cleaner, characterized in that a part is provided at a higher place than the first dust collecting part. 2. The self-propelled vacuum cleaner according to claim 1, wherein the vacuum tool comprises a speed change means capable of adjusting an amount of suctioned air by an operation.