JPH07255655A - Movable cleaning equipment - Google Patents

Abstract

PURPOSE:To provide a movable cleaning equipment that does not fail to suck dirtied washing on the floor in both forward and backward cleaning and on forward cleaning, lifts up a front suction opening to reduce traveling resistance and clean the floor efficiently. CONSTITUTION:This movable cleaning equipment comprises an equipment body 1 capable of moving forward and backward, a cleaner 2 having a rotary brush 12, a washing dropping device for dropping cleaning fluid, a first support mechanism 31 for supporting the cleaner 2 movably forward and backward to the equipment body 1, suction devices 35A, 35B, placed at the front and rear of the cleaner 2 to suck dirtied washing on the cleaning floor from suction openings 37a, 37b, and second support mechanisms 41, 42 for supporting the front and rear suction movably upward and downward, wherein the front suction opening 37a can move up from the cleaning floor A so as to move the cleaner 2 relatively backward as the equipment body 1 moves forward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile cleaning device used for cleaning a floor surface of a building or a vehicle such as a train.

[0002]

2. Description of the Related Art As a mobile cleaning device of this type, there is known a device called a floor cleaning robot which cleans a surface to be cleaned, for example, a floor surface while moving manually or automatically.

This configuration will be briefly described with reference to FIG.
From a device body 1 with wheels such as a traveling carriage that can be moved manually or automatically along the floor surface A, a cleaner 2 attached to the front part of the device body 1, and a water supply tank 3 mounted on the device body 1. A cleaning liquid drop device (not shown) for dropping the cleaning liquid onto the floor surface A, and a cleaning waste water absorbing device 5 for absorbing the cleaning waste water on the floor surface A at the time of cleaning and collecting it in the cleaning waste water recovery tank 4 mounted on the apparatus body 1. And is configured.

The cleaning machine 2 includes a cover-shaped machine body 11 having a rotary drive mechanism (not shown) such as a motor, and a substantially disk-shaped cleaning machine provided below the machine body 11 via a rotary shaft. A rotary brush or a rotary pad (hereinafter, simply referred to as a brush) 12 is provided, and the brush 12 is rotated by being driven by a rotary drive mechanism while being in contact with the floor surface A.

In order for the brush 12 of the cleaning machine 2 to follow vertical changes (inclination) of the floor surface A and unevenness and undulations, the tool body 11 has a pair of left and right link arms 15a.
With the first support mechanism 15 configured using
On the other hand, it is supported so that it can be flipped up and rotated.

The cleaning / sewage sucking device 5 is provided with a suction nozzle 21 having a horizontally long slit-like flexible structure arranged on the rear side of the cleaning device 2 and grounded to the floor A, and a flexible suction hose 22 connected thereto. And a suction unit (not shown) such as a suction pump that exerts a suction force on the suction nozzle 21 through the suction hose 22 to suck the cleaning wastewater on the floor A and collect it in the cleaning wastewater recovery tank 4. Be prepared.

The suction nozzle 21 of the cleaning / sewage sucking device 5 also uses the second support mechanism 25 using the link arm 25a so as to follow the vertical changes of the floor surface A and the unevenness and undulations. On the other hand, it is supported so that it can be flipped up and rotated.

[0008]

By the way, in the conventional movable cleaning device having the above-mentioned structure, the brush 12 of the cleaning device 2 is used.
While contacting with the floor surface A while rotating, the cleaning liquid is dropped from the water supply tank 3 onto the floor surface A by the washing liquid dropping device,
In this state, the apparatus main body 1 is moved forward to clean the floor surface A with the brush 12 and the cleaning liquid, and at the same time, the cleaning waste water at the time of cleaning is cleaned from the floor surface A to the cleaning waste water suction device 5
It can be sucked from the suction nozzle 21 and collected in the collection tank 4.

However, the cleaning waste water suction device 5
Since the suction nozzle 21 of is only provided on the rear side of the cleaning machine 2, the cleaning waste water can be absorbed only during the forward movement of the apparatus body 1 during the floor cleaning, and during the backward movement of the apparatus body 1. There was a problem that the cleaning dirty water of the brush cleaning part could not be absorbed and remained on the floor surface A.

The present invention has been made in view of the above circumstances, and an object of the present invention is to advance the apparatus main body either forward or backward while dropping the cleaning liquid on the surface to be cleaned and grounding the rotary brush or the rotary pad of the cleaning machine. Even if the cleaning is performed by using the cleaning nozzle, it is possible to suck the cleaning wastewater at the time of cleaning without leaving it on the surface to be cleaned with the suction nozzles arranged before and after the cleaning machine, or to collect it with the wastewater recovery spatula. During main cleaning by moving forward, the suction nozzle or sewage recovery spatula arranged on the front side of the cleaning machine rises up to the automatic machine and moves away from the surface to be cleaned, reducing the forward running resistance of the device body, etc. It is an object of the present invention to provide a movable cleaning device capable of efficiently cleaning a surface to be cleaned.

[0011]

In order to achieve the above-mentioned object, the present invention is a cleaning device having a rotating brush or a rotating pad which is in contact with a surface to be cleaned, in a device body movable along the surface to be cleaned. In the mobile cleaning device, a cleaning liquid dropping device for dropping a cleaning liquid onto the surface to be cleaned and a cleaning waste water suction device for sucking the cleaning waste water on the surface to be cleaned at the time of cleaning from the nozzle are provided in the main body of the device. On the other hand, a first support mechanism for supporting the cleaning machine so as to be movable back and forth is provided, and suction nozzles of the cleaning wastewater suction device are provided at the front and rear of the cleaning machine so as to be vertically movable by the second support mechanism, respectively, and the apparatus is also provided. The cleaning machine moves rearward relative to the forward movement of the main body, whereby the suction nozzle on the front side of the cleaning machine is interlocked via the second support mechanism to rise apart from the surface to be cleaned. To.

With the mobile cleaning device having such a structure,
No matter whether cleaning is performed by advancing or retracting the main body of the cleaning machine while dropping the cleaning liquid on the surface to be cleaned and grounding the rotating brush or pad of the cleaning machine, the suction nozzle of the cleaning waste water suction device before and after the cleaning machine Are disposed, the front and rear suction nozzles can suck the cleaning wastewater at the time of cleaning without leaving it on the surface to be cleaned, and the surface to be cleaned can be cleaned very cleanly and efficiently.

During main cleaning by moving the apparatus body forward, the cleaning machine moves rearward relative to the apparatus body via the first support mechanism due to contact frictional resistance with the surface to be cleaned, thereby cleaning the apparatus. The suction nozzle arranged on the front side of the machine automatically moves up to separate from the surface to be cleaned by interlocking with the second support mechanism, which prevents an increase in forward running resistance of the main body of the machine and enables smooth forward running. Will be able to maintain.

In addition to the structure of the mobile cleaning device,
By the cleaning machine moving relatively forward with the backward movement of the apparatus body, the suction nozzle on the rear side of the cleaning machine is interlocked via the second support mechanism and lifted away from the surface to be cleaned. During cleaning by retracting the device body, instead of the suction nozzle arranged on the front side of the cleaning machine being grounded on the surface to be cleaned, the suction nozzle arranged on the rear side is raised by the automatic machine to move away from the surface to be cleaned. , The machine body can be moved and cleaned smoothly with little resistance in both forward and backward directions.

Further, a sewage recovery spatula for scraping the sewage sewage on the surface to be cleaned may be provided in place of at least one of the suction nozzles at the front and rear of the sewage suction device for cleaning. As a result, it becomes possible to scrape the cleaning wastewater during cleaning as the apparatus body travels, without leaving it on the surface to be cleaned.

Further, in the cleaning and sewage suction device, the suction nozzles arranged at the front and rear of the cleaning machine, one suction portion which communicates with the suction nozzles at both the front and the rear to exert suction force, and the suction force from the suction portion. And a switching valve for operating the front and rear suction nozzles one by one, and this switching valve interlocks with the vertical movement of the front and rear suction nozzles to apply suction force only to the suction nozzle on the side grounded to the surface to be cleaned. It is preferable that the switching operation is performed in a working state.

By doing so, in addition to the above-described operation, suction nozzles arranged in front of and behind the cleaning machine work on the surface to be cleaned by the suction force from one common suction portion (for example, water suction pump). The cleaning sewage can be absorbed, and the structure can be simplified and the cost can be reduced as compared with the case where two independent cleaning sewage suction devices are provided. Moreover, since the switching valve interlocks with the vertical movement of the front and rear suction nozzles, the switching operation is performed so that the suction force is exerted only on the suction nozzle on the side grounded to the surface to be cleaned. The suction efficiency of each suction nozzle is very good during both forward and backward cleaning, and the cleaning dirty water on the surface to be cleaned can be sucked cleanly.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. In this embodiment, a movable cleaning device for cleaning the floor surface A as the surface to be cleaned is exemplified. First, a cover-shaped tool body 11 including a device body 1 and a rotation driving mechanism (not shown) such as a motor of a cleaning machine 2 and a substantially disk-shaped cleaning rotary brush or a rotation pad (hereinafter, simply referred to as a “bottom”) below the cover. The brush) 12, the cleaning liquid storage water supply tank 3 and the cleaning waste water recovery tank 4 mounted in the apparatus body 1 are
Since it is similar to that shown in FIG. 7, the same reference numerals are given to simplify the description. In addition, the water tank 3 for storing the cleaning liquid
Cleaning liquid drop device (not shown) for dropping the cleaning liquid from the inside of the brush 12 to the floor surface A through a flexible hose or the like
Is also provided.

Here, the first support mechanism 31 for supporting the cleaning device 2 on the front surface of the apparatus main body 1 is hung from a pair of left and right link arms 31a and the front ends and substantially middle portions of the link arms 31a. Front and rear parallel links 31
b and 31c. The tool body 11 of the cleaning device 2 is pivotally connected to the lower ends of the front and rear parallel links 31b and 31c. This allows the cleaner 2 to move up and down so as to follow up-down changes (inclination) of the floor surface A and unevenness and undulations due to the rotation operation of the link arm 31a around the fulcrum B, and the parallel links 31b, 3b.
The cleaning device 2 is supported so as to be movable back and forth by the rotation of 1c. It should be noted that pin-shaped stoppers 32 and 33 are projectingly provided at the front and rear portions of the side surface upper edge of the tool body 11 of the cleaner 2, and these stoppers abut the parallel links 31b and 31c to move the cleaner 2 forward and backward. Is regulated within a certain range.

Further, cleaning sewage suction devices 35A and 35B are provided in front of and behind the cleaning machine 2, respectively. The cleaning waste water suction devices 35A and 35B before and after that,
Suction nozzles 37a and 37b having suction ports 36a and 36b each having a horizontally long slit-like flexible structure and grounding to the floor surface A, respectively, flexible suction hoses 38a and 38b connected to the suction nozzles 37a and 37b, and the suction hose 38a. 38
a suction unit (not shown) such as a suction pump that exerts a suction force on the suction nozzles 37a and 37b via b to suck the cleaning wastewater on the floor A and collect it in the cleaning wastewater recovery tank 4; It is a configuration.

The suction nozzle 37a of the cleaning waste water suction device 35A on the front side is cleaned by the pair of upper and lower parallel links 41a, 41b forming the second support mechanism 41 on the front side.
Is vertically movably supported on the main body 11 of the device, and the suction nozzle 37b of the cleaning waste water suction device 35B on the rear side constitutes a second support mechanism 42 on the rear side.
The suction nozzles 37a, 37b are supported by the tool main body 11 of the cleaning device 2 by 2a, 42b so as to be vertically movable.
b is located in front of and behind the cleaning machine 2 so that the floor surface A can be grounded while following the changes in the vertical direction and the unevenness.

Further, the lower parallel link 41b of the front side second support mechanism 41 is extended further rearward from the fulcrum C for the equipment main body 11, and the rear side parallel link 41b of the first support mechanism 31 is provided. The link 31c is the device body 1
It is bent in an L shape and extends forward from the fulcrum D for 1.

Then, as shown in FIG. 2, as the apparatus body 1 moves forward in the direction of arrow E, the cleaning machine 2 moves the brush 12
When the L-shaped parallel link 31c rotates in the counterclockwise direction in the drawing by relatively moving backward by the contact frictional resistance force between the floor and the floor surface A, the extended rear end of the parallel link 41b is pushed down. Then, the parallel link 41b is rotated in the clockwise direction in the drawing around the fulcrum C and the suction nozzle 37 on the front side is rotated.
It is configured such that a is lifted away from the floor surface A.

With the mobile cleaning device having such a structure,
The cleaning liquid is dripped from the cleaning liquid storage water supply tank 3 to the floor surface A from the inside of the brush 12 of the cleaning device 2 by a cleaning liquid dropping device via a flexible hose, and the brush 12 of the cleaning device 2 is rotated and grounded on the floor surface A. Then, when the floor surface is cleaned while moving the apparatus body 1 forward in such a state, the cleaning machine 1 uses the contact friction resistance force between the brush 12 and the floor surface A as described above along with the forward movement of the apparatus body 1. Since it moves rearward relative to the main body 1 via the first support mechanism 31, the L-shaped parallel link 31c of the first support mechanism 31 rotates counterclockwise in the drawing to support the second support on the front side. The extension rear end portion of the parallel link 41b of the mechanism 41 is pushed down, and the parallel link 41b is rotated clockwise around the fulcrum C in the drawing in the figure, and the cleaning waste water suction device 3 on the front side is pushed.
The suction nozzle 37a of 5A is pushed up.

Therefore, at the time of cleaning the floor surface by moving the apparatus body 1 forward, the suction nozzle 37a of the cleaning waste water suction device 35A arranged on the front side of the cleaning device 2 is automatically raised so as to separate from the floor surface A. No running resistance is generated. In this state, the suction nozzle 37b of the cleaning dirty water suction device 35B arranged on the rear side of the cleaning device 2 moves forward while being grounded on the floor surface A, without leaving the cleaning dirty water after brush cleaning of the floor surface A. It sucks and collects it in the cleaning wastewater recovery tank 4 via the suction hose 38b.

On the contrary, when the floor surface is cleaned while the apparatus body 1 is moved backward, the cleaning machine 1 is moved by the backward movement of the apparatus body 1 by the contact friction resistance force between the brush 12 and the floor surface A. On the other hand, since it moves relatively forward via the first support mechanism 31, the L-shaped parallel link 31c of the first support mechanism 31 rotates in the clockwise direction in the drawing to move to the second front side.
The parallel link 41b of the support mechanism 41 is separated from the extended rear end. As a result, the parallel link 41b becomes free to rotate, and the suction nozzle 3 of the cleaning waste water suction device 35A on the front side.
7a descends by its own weight and contacts the floor surface A.

Therefore, when cleaning the floor surface by moving the apparatus body 1 backward, the suction nozzle 37a of the cleaning waste water suction device 35A arranged on the front side of the cleaning device 2 is kept in contact with the floor surface A, The cleaning wastewater after cleaning the brush on the floor surface A is sucked up without being left behind and collected in the cleaning wastewater recovery tank 4 via the suction hose 38a.

That is, no matter whether the apparatus body 1 is moved forward or backward for cleaning, the suction nozzles 37a, 37 of the cleaning wastewater suction devices 35a, 35b are disposed before and after the cleaning machine 2.
b are arranged, the suction nozzles 37 before and after these are provided.
By the a and 37b, it is possible to absorb the cleaning dirty water when cleaning the floor surface A without leaving it, and it is possible to clean the floor surface A very cleanly and efficiently.

Moreover, at the time of main cleaning by the forward movement of the apparatus main body 1, the suction nozzle 3 arranged on the front side of the cleaning machine 2
Since 7a automatically rises away from the surface to be cleaned, the forward running resistance of the apparatus body 1 can be prevented from increasing, and the floor surface can be cleaned smoothly by running forward.

Next, some other embodiments of the mobile cleaning device of the present invention will be described. First, in the second embodiment shown in FIG. 3, in addition to the configuration of the first embodiment, at the time of cleaning by the backward movement of the apparatus body 1, the suction nozzle 37a of the cleaning wastewater suction device 35A arranged on the front side of the cleaning machine 2 is used. Instead of being grounded on the floor surface A, the cleaning waste water suction device 35 arranged on the rear side
The suction nozzle 37b of B is configured to be lifted by the automatic machine so as to move away from the floor surface A.

In other words, in the second embodiment, the first cleaning device 2 supports the cleaning device 2 so that it can move up and down and back and forth with respect to the device body 1.
The support mechanism 51 includes a pair of left and right link arms 51 a and three parallel links 5 hung from the link arms 51 a in the front and rear and in the middle.
1b, 51c, 51d, and the main body 1 of the cleaning machine 2 at the lower ends of these parallel links 51b, 51c, 51d.
1 is pivotally connected, and the parallel link 51d in the middle is an inverted T having an extension part in the front and back from the fulcrum F at the lower end.
It is a glyph.

On the other hand, the suction nozzles 37a, 37b of the cleaning dirty water suction devices 35A, 35B arranged in front of and behind the cleaning device 2, respectively.
Front and rear second support mechanisms 52, 53 for vertically movably supporting the
Is a pair of upper and lower parallel links 52a, 52b and 5 respectively.
3a, 53b, and second before and after that
The lower parallel links 52b of each of the support mechanisms 52, 53,
53b extends longer than the fulcrums G and H for the cleaner 2, and these extended ends are alternately pushed down by the forward and backward rotation of the inverted T-shaped parallel link 51 of the first support mechanism 51. There is.

With such a construction, when the cleaner 2 moves relatively rearward due to the contact frictional resistance force between the brush 12 and the floor surface A as the apparatus main body 1 moves forward, the first
The inverted T-shaped parallel link 51 of the support mechanism 51 rotates counterclockwise in the drawing to push down the extension end of the lower parallel link 52b of the second support mechanism 52 on the front side, which causes the parallel link 52b to move. It rotates clockwise around the fulcrum G in the drawing to raise the suction nozzle 37a on the front side so as to move away from the floor surface A. When the apparatus main body 1 moves backward, the reverse T-shaped parallel link 51 of the first support mechanism 51 rotates in the clockwise direction in the drawing contrary to the above, and the lower parallel link 53b of the rear side second support mechanism 53. The extended end portion of is pushed down, and the parallel link 53b thereof is rotated in the counterclockwise direction in the drawing around the fulcrum H to raise the rear suction nozzle 37b away from the floor surface A.

Therefore, during cleaning by moving the apparatus body 1 either forward or backward, of the suction nozzles 37a, 37b arranged in front of and behind the cleaning machine 2, the suction nozzle on the front side in the traveling direction of the apparatus body 1 is always automatic. To the floor surface A, and the other side on the opposite side comes into contact with the floor surface A, allowing smooth running in both the forward and backward directions of the apparatus body 1 and forward / backward movement. In any running condition, the floor surface can be cleaned while cleansing the cleaning wastewater, and the working effect of the first embodiment can be further improved.

FIG. 4 shows a third embodiment of the present invention.
Here, an example in which the first support mechanism 61 that supports the cleaner 2 so as to be movable back and forth with respect to the apparatus main body 1 has a slide type structure,
The first slide-type support mechanism 61 is provided with a support body 61a projecting forward from the apparatus main body 1, a shaft-shaped guide 61b that is laterally stretched on the lower side of the support body 61a in the front-rear direction, and a forward-backward movement of the guide 61b. The slide body 61c is slidably fitted to the slide body 61c, and the main body 11 of the cleaning device 2 similar to the above is attached to and supported by the slide body 61c so as to be movable back and forth together with the slide body 61c. Pushing pins 61d and 61e are projectingly provided on the front and rear sides of the slide body 61c. Further, a substantially inverted T-shaped plate-like support leg 61f is vertically provided from the middle of the support body 61a.

On the other hand, the suction nozzles 37a, 37b of the cleaning dirty water suction devices 35A, 35B arranged in front of and behind the cleaning device 2, respectively.
Front and rear second support mechanisms 62 and 63 for vertically supporting the
Is a pair of upper and lower parallel links 62a and 62b, respectively.
And 63a, 63b, and the base legs of the parallel links 62a, 62b and 63a, 63b are suspended from the support body 61a of the first support mechanism 61.
Each of them is pivotally connected to 1f. Moreover, the upper and lower parallel links 6 of each of the second support mechanisms 62 and 63 before and after that.
2a and 63a are L-shaped and are bent upwards from the fulcrums J and K with respect to the support leg 61f, respectively, and these rising parts are pushed by the forward and backward movements of the slide body 61c of the first support mechanism 61. 61e is alternately pushed to rotate.

That is, as the apparatus body 1 moves forward, the cleaner 2 relatively moves backward together with the slide body 61c of the first support mechanism 61 by the contact frictional resistance force between the brush 12 and the floor A. Then, by the push pin 61d on the front side of the slide body 61c, the L on the upper side of the second support mechanism 62 on the front side is L.
The character-shaped parallel link 62a is pushed and pivots in the clockwise direction in the drawing around the fulcrum J, and the front suction nozzle 37a is lifted away from the floor A. When the device body 1 moves backward, the slide body 6 of the first support mechanism 61 is reversed, contrary to the above.
1c moves forward together with the cleaning device 2, and the pushing pin 61e on the rear side pushes the L-shaped parallel link 63a on the upper side of the second support mechanism 63 on the rear side so that the fulcrum H is the center of the drawing. It rotates clockwise and raises the suction nozzle 37b on the rear side so as to separate from the floor surface A. Even with such a configuration, the same operational effect as that of the second embodiment can be obtained.

In the second and third embodiments as well, as in the first embodiment, the brush 12 of the cleaning device 2 is supplied from the cleaning liquid storage water supply tank 3 via a flexible hose or the like.
A cleaning liquid dropping device (not shown) for dropping the cleaning liquid from the inside to the floor surface A is provided. Further, in the above-described movable cleaning devices of the first to third embodiments, the suction nozzles 37 of the cleaning dirty water suction devices 35a and 35B are disposed before and after the cleaning device 2.
Although a and 37b are provided to allow the cleaning dirty water to be sucked from the floor surface A, the suction nozzles 37a and 37 before and after that are provided.
Instead of either one or both of b, a waste water recovery spatula (not shown) for scraping the wash waste water on the floor surface A is used as the second support mechanism 41, 42 or 52, 53 or 6 as described above.
It may be provided via 2, 63. Even with this, the device body 1
It is possible to scrape the cleaning wastewater during cleaning due to the traveling of the vehicle without leaving it on the floor surface A, and it is possible to perform a clean cleaning.

FIG. 5 shows a fourth embodiment of the present invention.
Here, one cleaning waste water suction device 71 is provided.
However, this single cleaning / sewage suction device 71 has a pair of suction nozzles 71a, 71b arranged in front of and behind the cleaning machine 2.
And branch hose parts 72a, 7 which are connected to the cleaning waste water recovery tank 4 mounted on the apparatus main body 1 at the base end side and are bifurcated from the middle to be connected to the front and rear suction nozzles 71a, 71b.
The suction hose 72 with 2b, and one suction section (not shown) such as a water suction pump that communicates with both the front and rear suction nozzles 71a and 71b via the suction hose 72 to exert suction force, and suction from this suction section. A pair of switching valves 7 for applying force to the front and rear suction nozzles 71a and 71b respectively
3, 74. These switching valves 73,
Each of the front and rear suction nozzles 71a, 71b is provided on the upper hose connection pipe portions 71c, 71d so as to be opened and closed one by one.

These switching valves 73 and 74 are alternately operated to open and close in association with the rise and fall of the front and rear suction nozzles 71a and 71b, and the suction force is exerted only on the suction nozzle on the side grounded to the floor surface A. Is configured.

That is, first, the cleaning machine 2 is attached to and supported by the apparatus main body 1 so as to be movable back and forth through the first supporting mechanism (not shown) as in the embodiment shown in FIG. The front and rear second support mechanisms 5 similar to those in FIG.
2, 53 can be moved up and down with respect to the cleaning machine 2 and, as described above, linked to the relative back and forth movement of the cleaning machine 2 so as to alternately rise from the floor surface A or come into contact with the ground. Supported by.

Moreover, these hose connecting pipes 71c, 7
1d includes a floor sliding contact body 76 such as a rolling roller or a sliding piece,
77 is a pair of upper and lower parallel links 76a and 76, respectively.
b and 77a, 77b are arranged side by side so as to be vertically movable,
Moreover, the floor surface sliding contact bodies 76, 77 are connected to the hose connecting pipe portion 71.
c, 71d and an elastic body 76c. 77c is always urged downward, and the fulcrum on the base end side of the parallel links 76a, 77a on the upper side is the open / close shafts 73a, 74 of the switching valves 73, 74.
It is fixed to a. The front and rear suction nozzles 71
As a and 71b rise and fall, the parallel links 76a and 77a and the opening / closing shafts 73a and 74a rotate, and the switching valves 73 and 74 automatically open and close.

According to the structure of the fourth embodiment, as in the second or third embodiment, the cleaner 2 moves relatively rearward as the apparatus body 1 moves forward, and the suction on the front side is performed. The nozzle 71a rises away from the floor surface A, and the rear suction nozzle 71b descends so as to come into contact with the floor surface A. At this time, the floor sliding contact bodies 76, 77 arranged in parallel with each other are elastic bodies 76c. Since it remains grounded on the floor surface A by the bias of 77c, the opening / closing shaft 73a rotates in the counterclockwise direction in the drawing in association with the parallel link 76a as the suction nozzle 71a on the front side rises. While the switching valve 73 is closed, the opening / closing shaft 74a rotates clockwise in the drawing in conjunction with the parallel link 77a as the suction nozzle 71b on the rear side descends, which causes the switching valve 74 on the rear side to open. become.

On the contrary, when the apparatus main body 1 moves backward, the front suction nozzle 71a descends and contacts the ground at the same time as the front switching valve 73 opens, and the rear suction nozzle 71b rises. Switching valve 7 on the rear side
4 will be closed.

Therefore, in the fourth embodiment, in addition to the function and effect of the second embodiment, the suction nozzles 71a, 71b arranged before and after the cleaning machine 2 have a common suction portion (for example, a water suction pump). It is possible to simplify the structure and reduce the cost as compared with the case where two independent cleaning wastewater suction devices are provided by sucking the cleaning wastewater on the floor surface A by the action of the suction force from. Moreover, since the switching valves 73 and 74 interlock with the vertical movements of the front and rear suction nozzles 71a and 71b, the switching operation is performed so that the suction force is exerted only on the suction nozzle on the side grounded to the floor surface A. The operation is simple and unnecessary, and the suction efficiency of each suction nozzle 71a or 71b is very good at the time of cleaning both forward and backward, and the cleaning waste water on the floor surface A can be sucked cleanly.

FIG. 6 shows a fifth embodiment of the present invention.
In this case as well, one cleaning sewage suction device 81 is provided, which is substantially the same as the embodiment of FIG. This single cleaning waste water suction device 81 has a pair of suction nozzles 81a and 81b arranged in front of and behind the cleaning machine 2 and a cleaning waste water recovery tank 4 mounted on the main body 1 of the apparatus, the base end side of which is connected from the middle. Suction hose 82 with branch hose portions 82a, 82b connected to front and rear suction nozzles 81a, 81b, and both front and rear suction nozzles 81 through this suction hose 82.
a suction unit (not shown) such as a water suction pump that communicates with a and 81b to exert suction force, and one switching valve that applies suction force from this suction unit to each of the front and rear suction nozzles 81a and 81b And 83. This switching valve 83 is a Y-shaped branch portion 82 of the suction hose 82.
It is provided in c.

This single switching valve 83 is switched in conjunction with the rise and fall of the front and rear suction nozzles 81a and 81b associated with the back and forth movement of the cleaning machine 2, and only the suction nozzle on the side grounded on the floor surface A is operated. It is configured to exert suction power on.

That is, first, like the above-described embodiment shown in FIG. 3, for example, the cleaning machine 2 is attached to and supported by the apparatus main body 1 so as to be movable back and forth through the first support mechanism 51, and the cleaning is performed. Before and after the machine 2, the suction nozzle 81
a and 81b can be moved up and down with respect to the cleaning device 2 by the second front and rear support mechanisms 52 and 53, and as described above, the floor surfaces are alternately interlocked with the relative back and forth movement of the cleaning device 2 with respect to the apparatus body 1. It is supported so as to rise from A and to be grounded.

Further, the parallel link 51b on the front end side of the first support mechanism 51 is extended upward, and the upper end of the parallel link 51b is interlocked with the rotary link 84 having the base end fixed to the opening / closing shaft 83a of the replacement valve 83. It is pivotally connected via a link 85.
Then, as the parallel link 51b of the first support mechanism 51 rotates with the forward / backward movement of the cleaning device 2, the opening / closing shaft 83a rotates via the interlocking link 85 and the rotating link 84, and the switching valve 8
3 is automatically switched.

According to the structure of the fifth embodiment, as in the second embodiment, the cleaner 2 moves relatively rearward as the apparatus body 1 moves forward, and the suction nozzle 81a on the front side moves. The suction nozzle 81b on the rear side rises so as to be separated from the floor surface A, and descends so as to come into contact with the floor surface A. At this time, the opening / closing shaft 83a rotates clockwise in the drawing via the parallel link 51b of the first support mechanism 51, the interlocking link 85, and the rotation link 84, whereby the switching valve 83 automatically switches. , The suction nozzle 81b on the rear side, which is grounded to the floor surface A via the branch hose portion 82b of the suction hose 82
Only the suction force from the suction part will work.

When the apparatus main body 1 moves backward, the suction nozzle 81a on the front side descends and contacts the ground, and the suction nozzle 81b on the rear side rises, conversely to the above.
At the same time, the switching valve 83 automatically switches to actuate the suction force from the suction portion only to the suction nozzle 81a on the front side via the branch hose portion 82a of the suction hose 82.

As a result, the same effect as that of the fourth embodiment can be obtained, and only one switching valve 83 is required, and the structure can be further simplified. In addition, in the case of the fifth embodiment shown in FIG. 6, the switching valve 83 has the first support mechanism 51.
Since the switching operation is interlocked with the rotation of the parallel link 51b, the rear suction nozzle 81b of the cleaning device 2 with respect to the apparatus main body 1 as in the first embodiment shown in FIGS. It may remain grounded on the floor surface A without interlocking with the relative movement.

In the fourth and fifth embodiments as well, although not shown, a washing liquid dropping device for dropping the washing liquid from the inside of the brush 12 to the floor surface A via the flexible hose from the washing liquid storage water tank 3 is provided. Has been.

[0054]

Since the movable cleaning apparatus of the present invention is constructed as described above, the cleaning apparatus is moved forward or backward while dropping the cleaning liquid on the surface to be cleaned and grounding the rotary brush or rotary pad of the cleaning machine. Even if cleaning is performed by advancing it, it is possible to suck the cleaning wastewater at the time of cleaning without sucking it on the surface to be cleaned by suction nozzles arranged before and after the cleaning machine or scrape it with a wastewater recovery spatula and at least the device During main cleaning by moving the main body forward, the suction nozzle or sewage recovery spatula arranged on the front side of the cleaner rises to the automatic machine and separates from the surface to be cleaned, reducing the forward running resistance of the main body and so it is very clean. In addition, the effect that the surface to be cleaned can be cleaned efficiently is obtained.

[Brief description of drawings]

FIG. 1 is a side view of essential parts showing a first embodiment of a mobile cleaning device of the present invention.

FIG. 2 is an operation explanatory view of the movable cleaning device according to the above-described embodiment during forward movement.

FIG. 3 is a side view of essential parts showing a second embodiment of the movable cleaning device of the present invention.

FIG. 4 is a side view of essential parts showing a third embodiment of the movable cleaning device of the present invention.

FIG. 5 is a side view of essential parts showing a fourth embodiment of the movable cleaning device of the present invention.

FIG. 6 is a side view of essential parts showing a fifth embodiment of the movable cleaning device of the present invention.

FIG. 7 is a partial side view showing a conventional mobile cleaning device.

[Explanation of symbols]

A ... Surface to be cleaned (floor surface), 1 ... Device body, 2 ... Cleaning machine, 1
2 ... Brush (rotating brush or rotating pad), 35A, 3
5B, 71, 81 ... Cleaning sewage suction device, 35a, 35
b, 71a, 71b, 81a, 81b ... Suction nozzle,
31, 51, 61 ... First support mechanism, 41, 42, 52,
53, 62, 63 ... Second support mechanism, 73, 74, 83 ...
Switching valve.

Claims (4)

[Claims] 1. A cleaning device having a rotating brush or a rotating pad in contact with a surface to be cleaned on a device body movable along the surface to be cleaned, a cleaning liquid dropping device for dropping a cleaning liquid on the surface to be cleaned, and a cleaning device. In a mobile cleaning device provided with a cleaning waste water suction device for sucking cleaning waste water on the surface to be cleaned from a suction nozzle, a first supporting mechanism for supporting the cleaning device so as to be movable back and forth with respect to the main body of the device is provided, The suction nozzles of the cleaning and sewage suction device are provided at the front and the rear of the cleaning device so as to be vertically movable by the second support mechanism, and the cleaning device moves relatively rearward as the device body moves forward. A movable cleaning device, characterized in that a suction nozzle on the front side of the cleaning device is configured to interlock with a second support mechanism and rise apart from the surface to be cleaned. 2. The movable cleaning device according to claim 1, wherein the suction nozzle on the rear side of the cleaning device moves the second support mechanism by moving the cleaning device relatively forward as the device body moves backward. A movable cleaning device, characterized in that the movable cleaning device is configured to be lifted away from the surface to be cleaned by interlocking with it. 3. A sewage recovery spatula for scraping cleaning sewage on the surface to be cleaned is provided in place of at least one of the suction nozzles at the front and rear of the cleaning sewage suction device according to claim 1 or 2. Mobile cleaning device. 4. The mobile cleaning device according to claim 1 or 2, wherein the cleaning sewage suction device communicates with suction nozzles arranged in front of and behind the cleaning device and both front and rear suction nozzles to exert suction force. Equipped with two suction parts and a switching valve that applies suction force from this suction part to each of the front and rear suction nozzles, and this switching valve is grounded on the surface to be cleaned in conjunction with the vertical movement of the front and rear suction nozzles. A mobile cleaning device characterized in that it is configured to perform a switching operation to a state in which suction force is exerted only on the suction nozzle on the operating side.