JPH08322774A - Working apparatus - Google Patents

Abstract

PURPOSE: To provide a floor surface cleaning apparatus which accomplishes even cleaning work with a manipulating touch of mopping. CONSTITUTION: A dripping pulse control circuit 61 receives a signal from a measuring ring encoder 29 for detecting a moving value of a floor surface cleaning device and a specified amount of dipping adjusted by a liquid agent dripping quantity adjusting volume control 53 and outputs a dripping pulse for supply a liquid agent to a liquid agent supply pump 64. Thus, the dripping quantity of the liquid agent is controlled by a moving speed of the floor surface cleaning device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a working device for working on a target surface while traveling on a floor surface, and more particularly to a working device capable of performing uniform cleaning work evenly with a feeling of operating a mop.

[0002]

2. Description of the Related Art Conventionally, working devices for wiping dirt off a floor surface, applying a disinfectant solution, polishing the floor surface, waxing, etc. have been sold. In such a working apparatus, a mop-type handle is provided with a tank for a liquid agent (such as an antiseptic solution), and a non-woven pad is attached instead of the mop. The non-woven pad is attached to the main body provided at the tip of the handle with Velcro. The floor surface was sterilized while the chemical was manually dropped onto the non-woven fabric pad to wet the non-woven fabric pad.

On the other hand, a self-propelled work vehicle has been conventionally sold. In such a self-propelled work vehicle, a floor pad is attached to the lower part of the work vehicle for various cleaning purposes,
Depending on the type of cleaning, wax or the like is dropped onto these floor pads for cleaning work.

[0004]

The conventional working device is constructed as described above. The self-propelled work vehicle has an advantage that anyone can easily perform cleaning work, but it was difficult to uniformly clean every corner of the floor with a mop-hanging operation feeling. In addition, in the mop-type working device, the appropriate amount of liquid agent depends on the intuition and experience of the operator, and there is a problem that the floor surface becomes sticky with the liquid agent and the amount of liquid agent applied is insufficient for beginners. .

The present invention has been made to solve the above problems, and an object of the present invention is to provide a working device capable of performing a uniform cleaning work evenly with the feeling of operating a mop.

Another object of the present invention is to provide a working device in which anyone can surely perform uniform work.

Still another object of the present invention is to provide a work device having a good balance during work.

[0008]

According to a first aspect of the present invention, there is provided a working apparatus including a liquid agent dropping means for dropping a liquid agent on a floor surface, a working portion for working on the floor surface, and a moving speed of the working portion for the floor surface. And a control means for controlling the amount of the liquid agent dropped by the liquid agent dropping means according to the measured value of the moving speed of the working unit.

In the working apparatus according to the second aspect of the present invention, three wheels for holding the working apparatus so that the working apparatus can travel, measuring means for measuring the moving speed of at least one wheel of the three wheels with respect to the floor surface, and measurement. Control means for controlling the working state of the working device in accordance with the moving speed measured by the means.

The working apparatus according to claim 3 includes wheels with suspension in addition to the three wheels in the working apparatus according to claim 2.

According to another aspect of the present invention, there is provided a working device, a main body portion for supporting the working portion, a wheel for holding the working device movably provided on the main body portion, and a grip for moving the working device in a traveling direction. Part, a connection part for connecting the main body part to the grip part provided on the side opposite to the working part with respect to the main body part, and a heavy object necessary for work, and the heavy object is provided in the main body part or the connection part. .

According to a fifth aspect of the present invention, there is provided a measuring device for measuring the moving speed of the wheel of the working device according to the fourth aspect with respect to the floor surface, and the working speed of the working device according to the moving speed measured by the measuring means. And control means for controlling the working state.

[0013]

In the working apparatus according to the first aspect of the present invention, the moving speed of the working unit that works on the floor surface is measured, and the liquid drop amount is controlled according to the moving speed of the working unit.

In the working device according to the second and third aspects, since the weight of the working device is supported by the three wheels and the work device is held so as to be able to travel on the floor surface, the moving speed of the working device is reliably detected. The work state can be controlled according to the detected moving speed.

In the working apparatus according to the fourth aspect, the working section and the gripping section for the worker to grip the apparatus are provided on both sides of the main body having the wheel as a center. In this configuration, the main body portion, which is a central portion of the work device, or the connection portion is provided with a heavy object.

In the working apparatus according to the fifth aspect, since the wheels are provided on the side of the center of gravity of the working apparatus, the moving speed of the working apparatus can be reliably detected, and the working state is controlled according to the detected moving speed. It

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

(1) First Embodiment FIG. 1 is a schematic external view showing a first embodiment of the floor surface cleaning device according to the present invention. 1 of this invention with reference to FIG.
The floor surface cleaning device 1a according to the embodiment includes a cleaning unit 2 that actually performs cleaning, a support unit 3 that supports the cleaning unit 2, and a gripping unit 5 that is connected to the support unit 3 and that performs an operation during cleaning. , Support 3
And a liquid agent holding portion 4 provided in the.

The wiping unit 2 is connected to the supporting unit 3 and supports a wheel 12 for moving the wiping unit 2 to a desired position during cleaning, and a wheel holding base plate 13 and a wheel holding base plate 13. Non-woven fabric 24 that is provided and that actually contacts the floor surface to clean the floor surface
A plurality of non-woven fabric holding parts 10 for holding
The non-woven fabric rotating mechanism 11 for rotating 0, and the wiping unit 2
The whole is covered with a cover 14.

The non-woven fabric holder 10 includes a non-woven fabric rotating plate 25 for holding the non-woven fabric 24, a non-woven fabric clip 26 for fixing the non-woven fabric 24 to the non-woven fabric rotating plate 25, and a driven pulley 16 for rotatably holding the non-woven fabric rotating plate 25. As shown in the figure, four sets of non-woven fabric holders 10 are provided, and these are driven by a non-woven fabric rotating mechanism 11 to each other. A liquid agent dropping nozzle 27 is provided near each of the nonwoven fabric rotary plates 25.
The adjacent wiping areas of the four nonwoven fabric rotary plates 25 are partially overlapped. However, by rotating the adjacent nonwoven fabric rotating plates with a phase difference, the wiping operation can be performed without interference and without leaving the liquid agent uncoated.

The non-woven fabric rotating mechanism 11 includes a double-toothed timing belt 18 and a drive motor 15 for driving the double-toothed timing belt 18 which rotate each other via a driven pulley 16 provided on the upper portion of the four sets of non-woven fabric holding portions 10. Including. Details of the nonwoven fabric rotating mechanism 11 will be described later.

The liquid agent holding section 4 receives a liquid agent tank 41 for storing the liquid agent, a tank holder 42 for integrally holding the liquid agent tank 41 on the support section 3, a liquid agent from the liquid agent tank 41, and a wiping section 2 A liquid agent supply unit 43 for feeding to the liquid agent and a liquid agent manual supply switch 44 provided in the liquid agent supply unit 43 for supplying the liquid agent from the liquid agent tank 41 to the liquid agent dropping nozzle 27 before starting the wiping operation are provided. The liquid agent supply unit 43 includes a liquid agent dropping pump (not shown), a battery serving as a drive source, a control circuit, and the like.

The grip portion 5 includes a grip grip 50 which serves as an operating portion for operating the entire floor cleaning apparatus 1, and a changeover switch 51 which is provided on the grip grip 50 and switches between the power source and the mode. Floor cleaning device 1 according to the present invention
a is operated in two modes: a liquid agent dropping mode in which the floor surface is cleaned while dropping the liquid agent, and a dry wiping mode in which the floor surface is wiped dry without dropping the liquid agent. Grip grip 5
0 is a switch 52 for dropping liquid in the dry wiping mode
And an adjusting volume 53 for adjusting the amount of the liquid agent dripped. When a worker finds a partially soiled floor surface while working in the dry-wiping mode, either switch from the dry-wiping mode to the wiping mode or operate the liquid agent dropping switch 52 in the dry-wiping mode. As a result, it is possible to perform the wiping operation while dropping the liquid agent in the dry wiping mode while focusing on the spot.

FIG. 2 is a plan view of the wiping unit 2 viewed from the cover 14 side. Details of the nonwoven fabric rotation mechanism 11 will be described with reference to FIG. 2. As described above, each of the four nonwoven fabric rotary plates 25a to 25d provided adjacent to each other is provided with the driven pulleys 16a to 16d for rotating them, and the driven pulleys 16a to 16d are provided with a toothed timing belt. 18 is wound, and the non-woven fabric rotary plates 25a to 25d are rotated in the arrow direction in the figure by driving the two-toothed timing belt 18 with the drive pulley 15a connected to the drive motor 15. An idle pulley 17 is provided adjacent to the drive pulley 15a to adjust the tension of the two-tooth timing belt 18. A rotary encoder 19 for generating a pulse synchronized with the rotation of the nonwoven fabric rotary plate 25 is attached to the driven pulley 16a, and the rotation speed of the nonwoven fabric rotary plates 25a to 25d is detected by this. The driven pulley 16e that rotates while sliding on the driven pulley 16d for rotating the nonwoven fabric rotary plate 25d is concentric with the driven pulley 16e.
A drop timing pulse disk 20 having a defective portion 21 corresponding to the drop timing position is provided. This missing part 2
The drop timing is detected by detecting 1 by the photo interrupter 23. Therefore, when the liquid agent is dropped, the liquid agent is not applied to the non-woven fabric rotary plates 25a to 25d, and the liquid agent can be dropped directly onto the floor surface.

FIG. 3 is a plan view of a moving mechanism for moving the wiping unit 2, which is located below the nonwoven fabric rotating mechanism 11 shown in FIG. With reference to FIG. 3, the moving mechanism of the wiping unit 2 includes a wheel holding base plate 13 connected to the support unit 3 and four wheels 12 a to 12 d held by the wheel holding base plate 13. The nonwoven fabric rotating mechanism 11 described above is also held by the wheel holding base plate 13.

The wheel 12a is a measuring wheel for measuring the moving speed of the floor cleaning device 1, and the rotation of the wheel 12a is detected by the measuring wheel encoder 29 via the speed measuring timing belt 28. The measurement wheel encoder 29 is provided on the wheel holding base plate 13.

Referring to FIG. 3, since the non-woven fabric rotating plates 25a to 25d for holding the non-woven fabric 24 to be actually wiped are sandwiched between the moving wheels 12a to 12d, the floor surface is cleaned. It can be performed stably.

FIG. 4 is a view showing a state in which the cleaning section 2 is viewed from the side. With reference to FIG. 4, the wheel holding base plate 13 is connected to the support portion 3 via the pivot center 34. The support member 40 of the nonwoven fabric rotary plate 25 is attached via a support (not shown) provided on the wheel holding base plate 13. The support member 40 swingably supports the nonwoven fabric rotary plate 25 via the swing center 30. The nonwoven fabric rotary plate 25 is positioned by the nonwoven fabric rotary plate attachment / detachment positioning pins 35, and is supported by the support member 40 by the rotary plate holding magnet 32. The nonwoven fabric rotating plate 2 is provided between the rotation holding magnet 32 and the support member 40.
A leaf spring 31 is provided for causing the 5 to follow the floor surface. The support member 40 is further provided with a compression spring 33 that biases the nonwoven fabric toward the floor surface.

Next, the control unit of the floor cleaning device 1 will be described. FIG. 5 is a control section 4 of the floor cleaning device 1 according to the present invention.
7 is a schematic diagram for explaining the control content of FIG. The control unit 47 is provided in the liquid agent supply unit 43.

Referring to FIG. 5, the control unit 47 is connected to the power / mode changeover switch 51 and is connected to the changeover control circuit 62 and the changeover control circuit 62 for controlling the changeover between the dry wiping mode and the wiping mode. Drive control circuit 63 for controlling the drive of the nonwoven fabric rotary plate 25 according to the mode
And the liquid drop amount from the liquid drop amount adjusting volume 53,
A drop pulse control circuit 61 for performing drop pulse control of the liquid agent in response to the moving speed of the floor cleaning device 1a from the measurement wheel encoder 29, the drop timing from the drop timing pulse disk 20, and the like, a switching control circuit 62, and a dry wiping mode. OR circuit 48a connected to the liquid medicine dropping switch 52 and sending a signal to drop the liquid medicine to the dropping pulse control circuit 61 in any mode, and any signal connected to the liquid medicine manual supply switch 44 and the dropping pulse control circuit 61. Is ON, an OR circuit 48b for sending a pump drive signal to the liquid agent supply pump 64 is included.

A signal from the rotary drive control circuit 63 is given to the drive motor 15 for rotating the nonwoven fabric rotary plate 25. By the drive motor 15, the two-tooth timing belt 1
The nonwoven fabric rotary plates 25a to 25d are rotated via 8, and the operation signals associated therewith are sent to the rotary encoder 19 and the dropping timing pulse disk 20. Rotary encoder 19
Is supplied to the rotation drive control circuit 63. A battery 65 is connected to the power / mode switch 51.

In this embodiment, control is always performed so that a predetermined amount of liquid agent is dropped per unit area for floor cleaning regardless of the moving speed of the wiping unit 2. In this case, the moving speed of the wiping unit 2 is detected by using the measuring wheel encoder 29, and based on this, the drop pulse control circuit 61 performs drop pulse control so as to drop a predetermined amount of liquid agent per unit area.

FIG. 6 is a diagram showing the control of the liquid agent supply amount output from the drop pulse control circuit 61 by the liquid agent drop amount adjusting volume 53. (A) is a figure which shows the example of a drop pulse in the case of controlling the liquid supply amount by controlling the duty of the drop pulse with respect to the drop timing pulse, and (B) controls the pulse number with respect to the timing pulse. It is a figure which shows the example of the dropping pulse in the case of controlling the liquid agent supply amount by this.

That is, pulsed liquid agent dropping is performed,
The drop amount of the liquid agent may be controlled by controlling the pulse width at a constant pulse interval according to the moving speed, or the drop amount of the liquid agent may be controlled by controlling the pulse interval at a constant pulse width according to the moving speed. You may.

In the above-described embodiment, the amount of liquid agent dropped per unit area for floor cleaning is always controlled to a predetermined amount regardless of the moving speed of the wiping unit 2. On the other hand, the drop amount of the liquid agent may be simply set by the liquid agent drop amount adjusting volume 53 so as not only to be a predetermined amount, but also to control the spread amount on the floor surface to be constant. FIG. 7 shows a block diagram of the control relationship in this case. Referring to FIG. 7, the block diagram in this case is almost the same as the case shown in FIG. 5, except that the signal from the measuring wheel encoder 29 is given to the rotation drive control circuit 63 and the nonwoven fabric rotary plate. Rotation speed adjustment volume 6
The difference from the embodiment of FIG. 5 is that the signal from 7 is given to the rotation drive control circuit 63.

Since the dropping amount of the liquid agent per unit area of the floor surface is controlled to a constant amount and the rotation speed of the rotating body is also controlled, the liquid agent on the floor surface is constant regardless of the moving speed of the wiping unit 2. The amount is postponed. As a result, uneven cleaning is eliminated, and uniform cleaning can be performed at all times regardless of the moving speed of the wiping unit 2. The method of controlling the liquid drop amount in this case is also as shown in FIG.

Next, the drop timing pulse and the drive timing of the liquid agent supply pump 64 will be described with reference to FIG.

Since there is a distance from the liquid agent dropping nozzle 27 to the floor surface, the liquid agent is dropped on the floor surface after a lapse of a predetermined time T after the liquid agent supply pump 64 is driven. Therefore, the cleaning unit 2
It is necessary to control the timing of driving the liquid agent supply pump 64 according to the moving speed of.

(A) is a diagram showing a liquid agent dropping timing when the moving speed of the wiping part 2 is slow and the rotating speed of the nonwoven fabric rotating plate 25 is controlled to be slow, and (B) is a moving speed of the wiping part 2. Is a diagram showing a liquid agent dropping timing when the rotation speed of the nonwoven fabric rotating plate 25 is controlled to be high. (A) in the figure
Indicates a dripping timing pulse, and the nonwoven fabric rotary plate 25 is 1
It shows a state in which a timing pulse is generated every 80 ° rotation. (B) shows the drive period of the liquid agent supply pump 64, and (c) shows the actual liquid droplet dropping period on the floor surface.

Referring to (A), as for the dropping timing, the driving of the liquid agent supply pump 64 is started at a predetermined time t = t1 from the dropping timing pulse signal, and after the time T, the liquid agent is dropped from the liquid agent dropping nozzle 27 to the floor surface. To be done.

On the other hand, when the moving speed of the wiping unit 2 is fast, the liquid droplet supply timing starts the driving of the liquid material supplying pump 64 at a predetermined time t = t2 from the liquid droplet timing pulse signal, and then the liquid material after a time T. The liquid agent is dropped from the dropping nozzle 27 onto the floor surface.

As shown in FIGS. 8A and 8B, since the operation of the liquid agent supply pump 64 is started after a lapse of a predetermined time corresponding to the rotation speed of the nonwoven fabric rotary plate 25 from the time when the dropping timing pulse is generated, the nonwoven fabric rotation is performed. Even when the rotation speed of the plate 25 changes, the drip timing does not deviate from the nonwoven fabric rotation plate 25. Further, with this configuration, even if the timing of the drip timing pulse with respect to the rotating body is deviated at the time of assembly, the deviation can be eliminated by adjusting the predetermined time.

FIG. 9 is a timing chart when the liquid agent supply pump 64 is driven after a predetermined pulse of the rotary encoder 19 from the dropping timing pulse signal. (A)
FIG. 6 is a diagram showing an example in which the moving speed of the wiping unit 2 is slow
(B) is a diagram showing an example in the case of being fast. In the figure, (a) is a diagram showing a dropping timing pulse. In this case as well, a timing pulse is generated every time the nonwoven fabric rotary plate 25 rotates 180 ° as in the case of FIG. (B) shows a timing pulse of the rotary encoder 19. (C) shows a drive period of the liquid agent supply pump 64, and (d) shows an actual liquid droplet dropping period on the floor surface.

With reference to FIG. 9 (A), the liquid material supply pump 64 is driven at a predetermined number of pulses N = N1 of the rotary encoder 19 from the liquid droplet timing pulse signal, and after that, after a lapse of time T, the liquid material dropping nozzle. The liquid agent is dropped from 27 onto the floor surface.

When the moving speed of the wiping portion is high, the liquid agent supply pump 64 is started to be driven by the predetermined pulse N = N2 of the rotary encoder 19 from the liquid droplet timing pulse signal, and after a lapse of time T, the liquid material dropping nozzle 27 starts to move to the floor. Liquid is dripped on the surface.

As shown in FIG. 9, in order to start the operation of the liquid agent supply pump 64 after counting a predetermined number of pulses corresponding to the rotation speed of the nonwoven fabric rotary plate 25 from the time when the dropping timing pulse is generated, the case described in FIG. By adjusting the count number of the rotary encoder 19, the above problem can be solved.

10 and 11 are a plan view and a side view showing a modified example of the wiping unit 2 of the floor surface cleaning device 1a according to the first embodiment, and correspond to FIGS. 3 and 4. Referring to FIGS. 11 and 12, the wiping unit 2 according to this modification is substantially the same as the first embodiment shown in FIG. 3, but the wheels are
The number is three, of which one on the front side is a free caster wheel and the point that the measuring wheel is attached to the rear wheel 12g is different from the first embodiment shown in FIGS. 3 and 4. ing. Since other parts are the same as those in the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Referring to FIGS. 10 and 11, in the modified example, the moving direction can be easily changed by using the front caster wheel 12e as the wheel 12e in comparison with the first embodiment.

In the above modification, only the front wheel 12e of the three wheels is the universal caster wheel.
2e to 12g may be free caster wheels. In that case, it becomes easier to change the moving direction.

Further, in this modification, the front side is the free caster wheel and the rear side is the measurement wheel, but it goes without saying that the reverse may be done. Alternatively, two wheels may be provided on each side to form a four-wheel configuration.

However, in the case of a four-wheel configuration, one of the four wheels must have a suspension function that can move up and down with respect to the floor so that the four wheels are always in contact with the floor. Is preferred. The casters with suspension will be described later.

(2) Second Embodiment In the first embodiment, the wheels 12 are provided before and after the wiping unit 2, but in the second embodiment, the wheels 12 are provided on the rear side of the wiping unit 2. It is provided. As a result, the wheel 12 cannot pass on the floor surface cleaned by pulling the cleaning unit 2 to the rear side for cleaning.

FIG. 12 shows a floor surface cleaning device 1 according to the second embodiment.
It is a perspective view which shows the schematic block diagram of b.

With reference to FIG. 12, a floor surface cleaning device 1b according to the second embodiment has a cleaning section 2, a main body section 6 supporting the cleaning section 2 and provided with wheels, and a main body section 6. And the connected grip portion 5. In the second embodiment, in order to prevent the wheels 12 from passing over the cleaned floor surface, the cleaning work is performed in the direction indicated by the arrow as the basic cleaning direction. The details of the wiping unit 2 and the gripping unit 5 are the same as in the first embodiment, so
The same parts are designated by the same reference numerals and the description thereof will be omitted.

In the second embodiment, a body portion 6 is provided instead of the liquid agent holding portion 4 of the first embodiment, and a liquid agent tank 41, a liquid agent supply section 43, and a liquid agent manual supply switch 4 are provided therein.
4, heavy objects such as the battery 65 are provided. As a result, the load is concentrated on the main body portion 6 to prevent the measurement wheel from slipping and prevent the wiping portion 2 from collapsing. Also, FIG.
As shown in FIG. 8, the same effect can be obtained by disposing the battery 65 and the liquid agent tank 41 in the support portion 3.

With reference to FIG. 12, the wheels are universal caster wheels 55. By using caster wheels 55 for all the wheels, it is possible to smoothly move left and right for cleaning. Although FIG. 12 shows an example in which one wheel is provided on the wiping unit 2 side and two wheels are provided on the gripping unit 5 side, this arrangement is reversed and two wheels are provided on the wiping unit 2 side and the gripping unit 5 is provided. One wheel may be provided on the side. Alternatively, two wheels may be provided on each side to form a four-wheel configuration. However, in the case of a four-wheel configuration, as described in the modification of the first embodiment, one of the four wheels is placed above and below the floor so that the four wheels are always in contact with the floor. It is preferable to have a movable suspension function.

FIG. 19 shows a specific example in which the casters with suspension are attached. In the figure, (A) is 4 on the main body 6.
It is a figure which shows the state in which the casters of a wheel were provided, (B)
FIG. 6 is a diagram showing a specific example of the casters with suspension shown in (B) in (A).

By using all the caster wheels as described above, the cleaning section 2 can be smoothly moved not only to the front and rear but also to the left and right.
Since it can be moved, cleaning work can be performed with the same feeling as conventional mop work.

FIG. 13 is a perspective view showing an outline of a rotation speed detecting portion 56 for detecting the traveling speed of the floor surface cleaning device 1b when the universal caster wheel 55 is used. Referring to FIG.
The universal caster wheel 55 includes a wheel holding portion 70 attached to the body portion 6 and a wheel rotating shaft 72 held by the wheel holding portion 70 and rotatably holding the measuring wheel 71. The wheel holding portion 70 moves to the body. It is connected via the direction rotation shaft 73.
One or a plurality of permanent magnets 75 are arranged on the measuring wheel 71, and the Hall element 74 detects the magnetism to detect the rotation speed of the measuring wheel 71. The rotating shaft 73 in the moving direction of the measuring wheel 71 extends vertically without intersecting with the wheel rotating shaft 72 as shown in the figure.

Since the hall element 74 is provided so as to face the wheel in a substantially upward direction of the rotation axis of the measurement wheel 71, even if the hall element 74 rotates about the movement direction rotation axis 73 of the measurement wheel 71, A constant positional relationship is always maintained with the Hall element 74.

With such a structure, the traveling speed can be detected even when the universal caster wheel 55 is used.
Further, the traveling speed can be detected with a simple configuration.

FIG. 14 is a perspective view showing another embodiment of the rotation speed detecting section 56 using the universal caster wheel 55. FIG.
4, in this embodiment, the measuring wheel 71 is supported by the wheel rotating shaft 82 via the wheel bearing 81, and the wheel rotating shaft 82 is connected to the main body portion 6 via the frame 84 and the moving direction rotating shaft 86. To be done. The rotation speed detector 56 includes a rotating plate 83 frictionally connected to the circumferential surface of the measuring wheel 71, and a rotating plate 83.
A gear 85a coaxial with the gear 85a, and a gear 85 engaging with the gear 85a
b and the moving direction rotary shaft 8 that rotates coaxially with the gear 85b
6. Includes a pulse disk 88 and a photo interrupter 88 for detecting the cutout portion of the pulse disk 89. The moving direction rotary shaft 86 is supported by the frame 84 via the moving direction rotary bearing 87.

The rotating plate 83 is frictionally connected to the circumferential surface of the measuring wheel 71, and its rotation is connected to the pulse disk 88 via gears 85a and 85b. The rotation of the pulse disk 88 is detected by the photo interrupter 89, and the rotation speed of the wheel is detected.

Since the rotation axis of the pulse disk 88 also serves as the rotation axis 86 of the moving direction of the measuring wheel 71, the pulse circle is rotated even when the moving direction of the floor cleaning device 1b is changed without rotating the measuring wheel 71. The plate 88 rotates. As a result, the effect that the liquid agent dropping control is continued is also obtained.

FIG. 15 is a diagram showing a modification of the wiping unit 2 in the second embodiment. In this modification, the cleaning unit 2
The non-rotating non-woven fabric pad 90 is used as the non-rotating non-woven fabric pad for cleaning the floor surface. Also in this case, a plurality of liquid agent dropping nozzles 27, for example, four, are provided as in the previous embodiment. Since the non-woven fabric 24 is fixed in this way without rotating, the structure of the wiping unit 2 can be simplified. Also in this case, the detection of the wheel rotation speed by the measuring wheel 71 and the like are the same as those in the above-described embodiment.

In this case, since it is not necessary to drop the liquid agent directly on the floor surface, it is not necessary to adjust the dropping timing.

FIG. 16 is a schematic diagram showing a schematic structure of the liquid agent supply section 43. Referring to FIG. 43, the liquid agent supply part 43 is
The liquid agent tank 41 includes a liquid agent supply pump 64 connected to the liquid agent tank 41, a distributor 45 connected to the liquid agent supply pump 64, and a plurality of liquid agent dropping nozzles 27 connected to the distributor 45. A backflow prevention valve 46 that prevents a backflow from the liquid agent dropping nozzle 27 side to the distributor 45 side is provided between the liquid agent dropping nozzle 27 and the distributor 45. Since the backflow prevention valve 46 is provided in this manner, the liquid agent dropping from each liquid agent dropping nozzle 27 can be surely stopped at the same time when the liquid agent supply pump 64 is stopped. As a result, even if the liquid agent supply pump 64 is stopped in order to stop the liquid agent dropping, which occurs when the check valve 46 is not provided, there is a slight difference in height between the liquid agent dropping nozzle 27 and the liquid agent dropping nozzle 27. It is possible to prevent the problem that air enters from the liquid agent dropping nozzle 27 having a high height difference and the liquid agent accumulated between the liquid agent supply pump 64 and each liquid agent dropping nozzle 27 drops from the liquid agent dropping nozzle 27 having a low height difference. .

Next, a method of exchanging consumables in the floor cleaning device 1b according to the present invention will be described. FIG. 17 (A)
FIG. 17 is a diagram showing a state at the time of wiping work, and FIG. 17 (B) is a diagram showing a state at the time of exchanging consumables. In the floor cleaning device 1, it is necessary to replace consumable items such as the nonwoven fabric rotating plate 25 and the liquid agent dropping nozzle 27. Therefore, in the floor surface cleaning device 1b, as shown in FIGS. 17A and 17B, the main body 6 and the wiping unit 2 are connected by the hinge 38, and the wiping unit 2 is used.
When is rotated in the direction of the arrow using the hinge 38, the wiping unit 2 is held by the flip-up stopper 39 provided on the main body 6. In such a state, the nonwoven fabric rotating plate 25 is detached from the support member 40, and the nonwoven fabric 14 is replaced by operating the nonwoven fabric clip 26. Nonwoven rotating plate 25
Is bonded to the support member 40 by the rotary plate holding magnet 32 including the magnet plate 32a and the magnetic plate 32b, the non-woven fabric rotary plate 25 can be easily detached from the support member 40.

Although the method of exchanging the consumables has been described with respect to the floor cleaning device 1b according to the second embodiment, it can be similarly applied to the floor cleaning device 1a according to the first embodiment. Although the nonwoven fabric 24 is held on the nonwoven fabric rotary plate 25 by using the nonwoven fabric clip 26, it may be held by a magic tape or the like.

As described above, since the wiping portion 2 is attached to the main body portion 6 via the hinge 38, it is possible to easily replace the consumable item.

[0071]

As described above, according to the first aspect of the invention, in the working device, since the amount of the liquid drop is controlled according to the moving speed of the working portion, anyone can evenly and uniformly feel the operation feeling of mopping. It is possible to provide a working device capable of performing work.

In the working device according to the second and third aspects, since the working device is supported by the three wheels so as to be able to travel on the floor surface, the moving speed of the working device can be reliably detected.

In the working apparatus according to the fourth aspect, the working section and the gripping section for the worker to grip the apparatus are provided on both sides of the main body having the wheel as a center. In this configuration, the heavy object is provided on the main body portion or the connection portion that connects the main body portion and the grip portion.

As a result, the working part and the gripping part are separated on both sides of the main body part and the heavy object is arranged in the center thereof, so that the working device is well balanced.

In the working apparatus according to the fifth aspect, since the weight of the heavy object is surely added to the wheel, the wheel does not slip. As a result, the moving speed of the working device can be reliably detected.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an overall configuration of a floor surface cleaning device according to a first embodiment.

FIG. 2 is a plan view of a nonwoven fabric rotation control mechanism.

FIG. 3 is a diagram showing a positional relationship between a nonwoven fabric rotary plate and wheels according to the first embodiment of the present invention.

FIG. 4 is a side view of the cleaning unit according to the first embodiment.

FIG. 5 is a block diagram of a control unit of the floor surface cleaning device according to the present invention.

FIG. 6 is a diagram showing a relationship between a liquid agent dropping timing pulse and a dropping pulse.

FIG. 7 is a block diagram showing another embodiment of the control unit of the floor cleaning device.

FIG. 8 is a timing chart showing timings of a dropping timing pulse, driving of a liquid agent supply pump, and a liquid agent dropping period.

FIG. 9 is a timing chart showing respective timings of a dropping timing pulse, a rotary encoder, a liquid agent supply pump, and a liquid agent dropping period.

FIG. 10 is a plan view of a wiping unit in a modification of the first embodiment.

FIG. 11 is a side view of a wiping unit in a modification of the first embodiment.

FIG. 12 is a schematic diagram showing an overall configuration of a floor surface cleaning device according to a second embodiment.

FIG. 13 is a diagram showing a configuration of a rotation speed detection unit of a universal caster wheel.

FIG. 14 is a perspective view showing another example of the rotation speed detection unit of the universal caster wheel.

FIG. 15 is a diagram showing a modification of the second embodiment.

FIG. 16 is a diagram showing a liquid agent transport path.

FIG. 17 is a diagram showing a replacement state of consumables of the floor cleaning device according to the present invention.

FIG. 18 is a diagram showing an example in which the arrangement position of heavy objects is different in the second embodiment.

FIG. 19 is a diagram showing a configuration of caster wheels with suspension.

[Explanation of symbols]

 1a, 1b Floor cleaning device 2 Wiping part 3 Support part 4 Liquid agent holding part 5 Grip part 6 Main body part 10 Nonwoven fabric holding part 11 Nonwoven fabric rotating mechanism 12 Wheels 13 Wheel holding base plate 15 Drive motor 16 Driven pulley 18 Two-toothed timing belt 19 rotary encoder 20 dropping timing pulse disc 24 non-woven fabric 25 non-woven fabric rotating plate

Claims (5)

[Claims] 1. A liquid agent dropping unit for dropping a liquid agent on a floor surface, a working unit for performing work on the floor surface, a measuring unit for measuring a moving speed of the working unit with respect to the floor surface, A working device, comprising: a control unit that controls a liquid drop amount of the liquid drop unit according to a measured value of a moving speed of the working unit. 2. A work device for performing work on a target surface while traveling on a floor surface, comprising: three wheels that hold the work device so that the work device can travel; and at least one of the three wheels. A working apparatus comprising: a measuring unit that measures a moving speed with respect to a floor surface; and a control unit that controls a working state of the working apparatus according to the moving speed measured by the measuring unit. 3. The work apparatus according to claim 2, further comprising a wheel with a suspension in addition to the three wheels. 4. A working apparatus having a working unit for working on a target surface while traveling on a floor surface. A wheel that holds the vehicle so that it can travel, a grip for moving the working device in the traveling direction, and a wheel provided on the side opposite to the working part with respect to the main body,
A working device, comprising: a connecting portion that connects the grip portion and the main body portion; and a heavy object required for work, wherein the heavy object is provided in the main body portion or the connecting portion. 5. A measuring means for measuring a moving speed of the wheel with respect to the floor surface, and a controlling means for controlling a working state of the working device according to the moving speed measured by the measuring means. The working device according to claim 4, wherein