JP2003074031A - Cleaning vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning vehicle capable of sufficiently cleaning a recessed part of a floor face side at all times, cleaning with little non-uniformity, and smoothly getting on and off a slope without hindrance. SOLUTION: A vehicular length direction shaft 24 with a rear part attached so as to vertically oscillate to a vehicle body 2 side via a vehicular width direction shaft 23 is provided on a lower part of a vehicle body 2. A body 25 of a cleaning means 21 is attached so as to horizontally rotate to the vehicular length direction shaft 24. A cleaning work part 30 having a rotatable brush via a driving shaft 31 of a vehicular width direction is provided in a body 25 side. A vertically moving device 50 vertically moving the vehicular length direction shaft 24 is provided between a front part of the vehicular length direction shaft 24 and a vehicle body 2 side. When the brush 32 is in a state not abutting evenly to a floor face Y due to a state of a recessed part Ya or the like in a horizontal direction, the body 25 side is horizontally rotated to the vehicular length direction shaft 24, the brush 32 is automatically inclined, by this, cleaning is carried out by reducing uneven cleaning.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning vehicle used for cleaning a floor surface in a factory, for example.

[0002]

2. Description of the Related Art Conventionally, as a cleaning vehicle of this type, a forklift, for example, disclosed in Japanese Utility Model Laid-Open No. 56-154409 is provided. In this conventional configuration, a rotary brush cleaner is installed between the front wheels and the rear wheels and in the space existing under the chassis. The brush of the rotary brush cleaning device is configured to contact the floor surface and rotate in one direction due to friction with the floor surface caused by traveling of the forklift. As for forcibly rotating the brush and the rotating brush, a forklift shown in Japanese Utility Model Laid-Open No. 56-154410 and a cleaning device for an industrial vehicle shown in Japanese Patent Laid-Open No. 10-59695 are provided. There is.

[0003]

However, in any of the above-described conventional configurations, the brush and the rotating brush are fixed to the chassis and the lower portion of the vehicle body at a low position through the rectangular box-shaped main body. It is provided. Therefore, for example, as shown in FIG. 9A, when the floor surface A has a recess B, the brush or the rotating brush D disposed between the wheels C passes above the recess B. As a result, the recess B cannot be sufficiently cleaned. Further, depending on the state of the left and right wheels C and the state of the recess B in the left-right direction (vehicle width direction), the brush and the rotating brush D are not evenly brought into contact with the floor surface A, which causes cleaning spots. become.

Further, as shown in FIG. 9B, at the entrance / exit of the slope, the main body F may hit the bottom of the upwardly convex corner E, so that the entrance / exit of the slope cannot be performed. become. Further, in a type in which the main body F is brought close to the floor surface A, the main body F may be pressed against the floor surface A and damaged due to wear of tires (wheels).

Therefore, according to the first aspect of the present invention, the recess on the floor surface can always be sufficiently cleaned, and
It is an object of the present invention to provide a cleaning vehicle that can perform cleaning with less cleaning spots and that can smoothly enter and exit slopes without any trouble.

[0006]

In order to achieve the above-mentioned object, a cleaning vehicle according to claim 1 of the present invention has a lower portion of a vehicle body, and a rear portion thereof vertically oscillates toward a vehicle body via an axis in the vehicle width direction. A movably mounted vehicle longitudinal axis is provided, and a main body of the cleaning means is rotatably attached to the vehicle longitudinal axis, and the main body side is provided with a drive shaft extending in the vehicle width direction. A cleaning work unit having a rotatable brush is provided, and an elevating device for vertically swinging the vehicle longitudinal axis is provided between the front portion of the vehicle longitudinal axis and the vehicle body side. It was done.

Therefore, according to the first aspect of the invention, the floor surface can be cleaned by operating the cleaning means during the forward traveling. That is, by lowering the lifting device,
The vehicle longitudinal axis is swung downward around the vehicle lateral axis, whereby the main body attached to the vehicle longitudinal axis is swung downward around the vehicle lateral axis to press the brush against the floor surface. Along with this, the cleaning work unit is driven to forcibly rotate the brush in a predetermined rotation direction. As a result, the brush that is driven and rotated is brought into contact with the floor surface, so that dust (such as dust) on the floor surface can be scraped up and collected.

In such a cleaning operation, when there is a concave portion on the floor surface, the brush is moved from the floor surface to the concave portion while maintaining a pressure contact state by swinging the main body downward about the vehicle width direction axis. Therefore, the recess can be cleaned. In addition, when the main body tries to hit the bottom of the upward convex corner at the slope entry / exit location, the main body can be swung upwards to buffer the bottom contact force and create a sliding contact condition. Can be done. Moreover, even if the main body is of a type close to the floor surface, there is no possibility that the main body is pressed against the floor surface and damaged due to wear of the wheels (tires).

Further, when the brush does not come into uniform contact with the floor surface due to the condition of the left and right wheels and the condition of the recess in the left and right direction (vehicle width direction), the vehicle length direction The body side can be rotated in the left-right direction with respect to the shaft. With this, the brush can be automatically tilted according to the state of the recess, and thus the cleaning of the recess by the cleaning unit can be performed without being significantly affected by the state of the recess.

A cleaning vehicle according to claim 2 of the present invention is
In the above-mentioned configuration according to claim 1, the lifting device is
It is characterized in that it is configured to allow the vehicle longitudinal axis to move up and down within a set range when it is inactive.

Therefore, according to the second aspect of the present invention, in the intended cleaning work, when the lifting device is in the non-acting posture at the lower limit and there is a recess on the floor surface, the main body side falls within the set range by its own weight. In addition, the main body side moves up and down within the set range against its own weight at the entrance and exit points of the slope.

A cleaning vehicle according to a third aspect of the present invention is characterized in that, in the structure according to the first or second aspect, the main body is provided with a ground wheel.

Therefore, according to the third aspect of the present invention, when the lifting / lowering device is lowered to swing the main body downward about the vehicle width direction axis, the grounding wheel is reached before the lifting / lowering device reaches the lower limit. The body can be abutted against the floor surface and thus the brush can be pressed against the floor surface.

Further, in the cleaning vehicle according to claim 4 of the present invention, in the structure according to any one of claims 1 to 3, the main body of the cleaning means with respect to the longitudinal axis of the vehicle is with respect to the main body. It is characterized in that it is attached via a detachable turning support.

Therefore, according to the invention of claim 4, the main body, that is, the cleaning work portion can be separated from the vehicle body side by separating the rotation support body and the main body, and the cleaning work portion can be separated by the reverse operation. Can be attached to.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
A state adopted in a forklift will be described with reference to FIGS.

2 and 3, a forklift 1 which is an example of a cleaning vehicle is provided with a pair of left and right front wheels (driving wheels that do not turn in relation to the vehicle body 2) 3 at the front portion of the vehicle body 2. , A pair of left and right rear wheels (redirecting wheels) 4 at the rear
Is provided, and a driver's seat 5 is provided above the front of the vehicle body 2. A vertically movable mast 6 is attached to the front end of the vehicle body 2 so as to be rotatable in the front-rear direction via a connecting shaft 7 in the vehicle width direction, and a tilt cylinder 8 for rotating the front-rear direction is provided. It is provided between the vehicle body 2 and the mast 6.

The mast 6 is composed of a pair of left and right outer frames 9 on the forklift 1 side, and a pair of left and right inner frames 10 which are guided by these outer frames 9 and can move up and down. A lift cylinder 11 is provided between them. In addition, a lift bracket 1 that can be raised and lowered by being guided to the inner frame 10 side
2 is provided, and a pair of left and right forks 13 is provided on the lift bracket 12 via a pair of upper and lower finger bars.

The driver's seat 5 is provided with a seat 15, a steering wheel 16 located in front of the seat 15, and the like.
A head guard 17 is arranged above the vehicle body 2 through a front pipe and a rear pipe standing upright. Further, a counterweight 18 is provided on the vehicle body 2 behind the seat 15.

1 to 4, a cleaning means 21 is provided below the vehicle body 2. That is, a pair of brackets 22 are provided in the vehicle width direction from the lower surface of the vehicle body 2, and these brackets 22 are U-shaped and have a vehicle width direction shaft 23.
Both brackets 22 are attached to the bottom surface of the vehicle body 2 by bolts, etc.
A vehicle width direction shaft 23 is rotatably provided therebetween. The rear portion of the vehicle length axis 24 is connected to the longitudinal center portion of the vehicle width axis shaft 23, so that the rear portion of the vehicle length direction shaft 24 moves vertically to the vehicle body 2 side via the vehicle width direction shaft 23. It is attached so that it can swing.

A main body 25 of the cleaning means 21 is attached to the vehicle longitudinal shaft 24 so as to be rotatable left and right. That is, the main body 25 of the cleaning means 21 has a flat box shape, and an inverted U-shaped rotation support body 26 is detachably attached to an intermediate portion of the cleaning means 21 in the vehicle length direction via a coupling tool 27 such as a bolt. There is. At this time, the rotation support body 26 is externally fitted to the vehicle longitudinal axis 24 from above, so that the main body 25 can be detachably rotated relative to the vehicle longitudinal axis 24. It is attached via a support 26 so as to be rotatable left and right. A support member 28 is continuously provided from the front portion of the main body 25 to the front, and a caster-type ground wheel 29 is provided on the lower surface side of the support member 28.

The main body 25 is provided behind the ground wheel 29.
A cleaning work unit 30 is provided on the side. That is, in the main body 25, a brush 32 is rotatably provided at a position (front portion) on the ground wheel 29 side via a drive shaft 31 in the vehicle width direction, and the drive shaft 31 is provided at a main body via a bearing 33. 25
It is rotatably supported on the side. A brush drive unit (motor or the like) 34 is provided in the rear portion of the main body 25, and the output shaft of the brush drive unit 34 and the drive shaft 31 have a winding transmission mechanism 35 disposed on one side. It is interlockingly connected through. At that time, the brush rotation direction Z is set so as to come into contact with the floor surface Y toward the front and then from the upper side to the rear side.

Further, the brush 32 and the brush driving unit 3
4, the brush 32 is provided at the center of the main body 25.
A dust box 36 is provided which can receive the dust W that has been scooped up and discharged from the upper part to the rear through an opening 36a formed in the front part. On the rear side of the dust box 36, a channel 39 in the vehicle width direction is formed by the mesh plate 37 and the partition plate 38, and the filter section 40 is integrally provided so as to communicate with the other side of the channel 39. The filter unit 40 is provided with a filter 41.

A fan 42 is provided facing the opening 40a formed in the filter section 40, and
A fan drive unit (motor or the like) 43 for driving the fan 42 is provided adjacent to the brush drive unit 34. It should be noted that the discharge port 44 is provided in the fan driving section 43.
Are formed. An example of the cleaning work unit 30 is configured by the above 31 to 44 and the like.

A cylinder device (an example of a lifting device) 50 for vertically swinging the vehicle longitudinal shaft 24 is provided between the front portion of the vehicle longitudinal shaft 24 and the vehicle body 2 side. That is, the cylinder device 50 includes a cylinder body 51 located above, a downward piston rod 52, and the like.
An upper end portion of the cylinder body 51 is connected to a vehicle body side bracket 54 via a connecting pin 53 in the vehicle width direction so as to be swingable back and forth.

A bracket 55 is continuously provided downward from the lower end of the piston rod 52, and a vertical slot 56 is formed in the bracket 55. The front end of the vehicle longitudinal axis 24 is passed through the elongated hole 56. As a result, the cylinder device 50 allows the vehicle longitudinal shaft 24 to move up and down within the set range by vertically moving the vehicle longitudinal shaft 24 in the elongated hole 56 when not operating (non-operating). It is configured. The rear surface of the bracket 55 is
It is formed on a stopper surface 55a with which the front surface 25a of the main body can come into contact.

On the cylinder body 51 side, a lower limit detection switch 59 and an upper limit detection switch 60 are arranged vertically via a mounting member 58. Further, on the piston rod 52 side, a lower limit operating portion 62 and an upper limit operating portion 63 are arranged by being vertically arranged via a mounting member 61. An example of the cleaning unit 21 is configured by the above 22 to 63 and the like.

In the cleaning means 21 thus constructed, the cylinder device 50 is activated by the non-cleaning instruction signal.
Is operated to ascend and the cleaning work unit 30 is stopped.

That is, when the operator (driver) turns off the switch of the cleaning means 21 in the driver's seat 5, or when the switch for forward detection is turned off during reverse running or when stopped, the brush 32 is also used. When a small turn detection switch is turned on during a small turn in which the vehicle easily slips, a non-cleaning instruction signal is input to the controller. At this time, according to an instruction from the controller, the cylinder device 50 is raised (contracted) and the brush drive unit 34 and the fan drive unit 43 of the cleaning work unit 30 are stopped.

The operation of the above embodiment will be described below. Forklift 1 is seat 15 of driver's seat 5
By operating the handle 16 by the operator sitting at, the front wheels 3 can be driven in the forward and reverse directions to move forward and backward. By operating the lift lever to operate the lift cylinder 11, the fork 13 can be moved up and down along the mast 6 via the lift bracket 12 and the like, and thus the desired fork work can be performed. By operating the tilt lever 8 by operating the tilt lever, the mast 6 can be rotated (tilted) around the connecting shaft 7, and thus the attitude of the fork 13 can be changed via the lift bracket 12 or the like. .

During the above-mentioned running motion, the steering wheel 16 is turned in accordance with the steering operation. That is, for example, forward traveling X
At times, by turning the steering wheel 16 to the left, the rear wheels 4 can be turned to make a left turn. Similarly, by turning the steering wheel 16 to the right, the rear wheels 4 can be turned to make a right turn.

For example, the floor surface Y can be cleaned by operating the cleaning means 21 during the forward traveling X as described above. That is, when the operator turns on the switch of the cleaning means 21 in the driver's seat 5, the cylinder device 50 is lowered (extended) to move the vehicle longitudinal axis 2
4 is swung downward around the vehicle width direction axis 23. As a result, the body 25 attached to the vehicle longitudinal axis 24 is integrally swung downward around the vehicle lateral axis 23.

At this time, the ground wheel 29 is brought into contact with the floor surface Y before the cylinder device 50 reaches the extension limit, so that the brush 32 is brought into pressure contact with the floor surface Y as shown in FIGS. obtain. Then, the lower limit operation section 62 is operated by the lower limit detection switch 5
When the cylinder device 50 reaches the extension limit and is stopped by operating 9, the vehicle longitudinal axis 24 is positioned in the middle of the elongated hole 56.

Along with this, the brush drive section 34 and the fan drive section 43 of the cleaning work section 30 are driven and rotated. Then, the drive torque of the output shaft of the brush drive unit 34 is
Can be transmitted to the drive shaft 31 via the winding transmission mechanism 35,
Thus, the brush 32 can be forcedly rotated in the predetermined rotation direction Z.
Further, the fan 42 can be forcibly rotated by the driving torque of the output shaft of the fan drive unit 43, which causes a discharge flow from the filter 41 to the discharge port 44 and also from the dust box 36 as shown in FIGS. A suction flow is generated through the flow path 39 to the filter section 40.

Therefore, when the brush 32 that is driven and rotated contacts the floor surface Y forward,
The dust W (dust etc.) on the floor surface Y is scraped up, and the dust W discharged from the upper part to the rear can be received by the dust box 36 through the opening 36a. The floating dust in the dust box 36 is
To the mesh plate 37, the flow path 39, and the filter section 40 from the filter section 40, and the discharge flow from the filter section 40 to the opening section 40a.
Collected by 1. The discharge flow is discharged through the discharge port 44.

The above cleaning work is performed, for example, while the forklift 1 is traveling forward X. And
For example, as shown in (a) of FIG. 6, when the floor surface Y has a concave portion Ya, first, the grounding wheel body 29 rolls while entering the concave portion Ya, and at that time, the vehicle longitudinal axis 24 moves. By swinging downward through the width direction shaft 23, the main body 25 automatically swings down around the vehicle width direction shaft 23,
Thus, the brush 32 can be moved from the floor surface Y to the concave portion Ya while maintaining the pressed state.

At this time, the cylinder device 50 is in the non-acting posture at the extension limit, but the vehicle longitudinal axis 24 located in the middle of the elongated hole 56 moves downward within the set range,
The downward swing of the main body 25 is performed without any trouble. This ensures that the recess Ya can always be sufficiently cleaned.

Further, as shown in FIG. 6B, the main body 25 is provided at the corner portion Yb which is convex upward at the entrance / exit portion of the slope.
When the vehicle tries to hit the bottom, the vehicle longitudinal axis 24 swings upward through the vehicle lateral axis 23, so that the main body 25 resists its own weight and automatically moves around the vehicle lateral axis 23. It will swing upward. At this time, the vehicle longitudinal shaft 24 located in the middle of the elongated hole 56 moves upward within the set range, so that the main body 25 can be swung upward without any trouble. As a result, the bottom contact force can be buffered to form a sliding contact state, so that the slope can be smoothly moved in and out without any trouble. Further, even if the main body 25 is of a type close to the floor surface Y, there is no possibility that the main body 25 is pressed against the floor surface Y and damaged due to wear of the wheels (tires) 3 and 4.

Further, as shown in FIG. 7, the brush 32 uniformly contacts the floor surface Y depending on the state of the left and right wheels 3 and 4 and the state of the recess Ya in the left-right direction (vehicle width direction). When the vehicle is in such a state as not to be operated, the main body 25 side with respect to the vehicle longitudinal axis 24 can be rotated in the left-right direction via the rotation support 26. Accordingly, the brush 32 can be automatically tilted in accordance with the state of the recess Ya, so that the cleaning of the recess Ya by the cleaning means 21 is not affected by the state of the recess Ya, and the work efficiency is always high. Moreover, the occurrence of cleaning spots can be reduced.

As described above, the cleaning work can be suitably performed while the forward traveling X is performed. Then, when the operator turns off the switch of the cleaning means 21 in the driver's seat 5, or when the forward movement detection switch is turned off during backward traveling or when stopped, or when the brush 32 makes a small turn that is likely to skid. When the switch for small turn detection is turned on, a non-cleaning instruction signal is input from each switch to the controller.

Then, as shown in FIG. 5, the cylinder device 50 is moved up (contracted) in accordance with an instruction from the controller, and the vehicle longitudinal axis 24 reaches the lower end of the elongated hole 56. Swing upward about the directional axis 23. Then, the ascent limit operation unit 63 operates the ascent limit detection switch 60, and the cylinder device 50 reaches the contraction limit and is stopped. As a result, the brush 32 can be separated upward from the floor surface Y, and wear of the brush 32 can be reduced. Around this time, the brush drive unit 34 and the fan drive unit 43 of the cleaning work unit 30 can be stopped by an instruction from the controller, and thus the power for rotating the brush 32 and the fan 42 can be reduced.

When the main body 25 is swung downward around the vehicle width direction axis 23 and the main body 25 tries to slide forward along the vehicle length direction axis 24, the main body front surface 25a is stopped by the stopper surface 55a. When it comes into contact with, the sliding is restricted.

When the cleaning work unit 30 is to be repaired, inspected or replaced, as shown in FIG. 8, the connector 27 is detached to separate the rotary support 26 and the main body 25 from each other. The main body 25, that is, the cleaning work unit 30 is attached to the vehicle body 2.
It can be easily separated from the side. Further, the cleaning operation unit 30 can be easily attached to the vehicle body 2 side by the reverse operation.

In the above-described embodiment, the cleaning vehicle has a form in which the cleaning means 21 is incorporated in the forklift 1. According to this, for example, cargo handling work and cleaning work inside and outside a building (factory) are performed. , Simultaneously or separately. However, the cleaning vehicle may be of a type in which the cleaning means 21 is incorporated into a self-propelled carriage that can travel on a fixed route in the factory, or a type dedicated to cleaning without having other functions.

In the above-described embodiment, the cylinder device 50 is shown as the lifting device, but it may be of a type using a screw shaft that is rotationally driven. In the embodiment described above, the cylinder device (elevating device)
Although 50 is configured to allow the main body 25 side to move up and down within the set range when not in operation, this may be a type that does not allow the body 25 to move up and down within the set range. In this case, it is also possible to detect the concave portion Ya and the corner portion Yb by an appropriate detecting means and move the cylinder device 50 up and down based on the detection.

In the above-described embodiment, the ground wheel 29 is provided on the front side of the main body 25, but this may be a type without the ground wheel 29. In the embodiment described above, the main body 25 of the cleaning means 21 is attached to the vehicle longitudinal axis 24, and the rotation support body 2 is detachable from the main body 25.
Although it is attached via 6, it may not be detachable but may be attached via a fixed type rotary support 26.

[0047]

According to the first aspect of the present invention described above, the floor surface can be cleaned by operating the cleaning means during forward traveling. That is, the elevating device is operated to descend, and the vehicle longitudinal axis is swung downward around the vehicle transverse axis, whereby the main body attached to the vehicle longitudinal axis is
A brush that can be driven to rotate by oscillating downward about the vehicle width direction axis so that the brush can be pressed against the floor surface, and the cleaning work unit is driven in front of and behind it to forcibly rotate the brush in a predetermined rotation direction. Will be able to contact the floor surface,
Dust (dust, etc.) on the floor can be scraped up and collected.

In such a cleaning operation, when there is a concave portion on the floor surface, the brush is moved from the floor surface to the concave portion while maintaining the pressure contact state by swinging the main body downward around the vehicle width direction axis. Therefore, it is possible to always sufficiently clean the concave portion. In addition, when the main body tries to hit the bottom of a corner that is convex upward at the entry / exit point of the slope, by swinging the main body upward, it is possible to buffer the bottom contact force and create a sliding contact shape. Can be performed smoothly without any trouble. Moreover, even if the main body is of a type close to the floor surface, there is no possibility that the main body is pressed against the floor surface and damaged due to wear of the wheels (tires).

Further, when the brush is not in uniform contact with the floor surface due to the condition of the left and right wheels and the condition of the recesses in the left and right direction (vehicle width direction), the vehicle length direction The body side can be rotated to the left and right with respect to the shaft. As a result, the brush can be automatically tilted according to the state of the concave portion, so that the cleaning of the concave portion by the cleaning means is not affected by the state of the concave portion and the like, the work efficiency is always high, and the cleaning spots are generated. Can be reduced.

According to claim 2 of the present invention described above,
In the intended cleaning work, the lifting device is in the inactive position at the lower limit, and if there is a recess on the floor surface, the main body side will move down within the set range by its own weight, and at the entrance and exit of the slope. The main body side moves upward within the set range against its own weight, so that the vertical movement of the main body can be automatically performed smoothly without any trouble.

According to the third aspect of the present invention described above, when the lifting / lowering device is lowered to swing the main body downward about the vehicle width direction axis, before the lifting / lowering device reaches the lower limit. In addition, the ground wheel can be brought into contact with the floor surface, so that the brush can always be suitably pressed against the floor surface.

Further, according to the above-mentioned claim 4 of the present invention, by disengaging the rotation support body and the main body, the main body, that is, the cleaning work portion can be easily separated from the vehicle body side,
Also, the cleaning operation unit can be easily attached to the vehicle body side by the reverse operation, so that the cleaning operation unit can be easily inspected and replaced.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a partially cutaway side view during cleaning of a cleaning means portion of a cleaning vehicle.

FIG. 2 is a side view of the cleaning vehicle.

FIG. 3 is a plan view of the cleaning vehicle.

FIG. 4 is a partially cutaway plan view of a cleaning means portion in the cleaning vehicle.

FIG. 5 is a partially cutaway side view of the cleaning means portion of the cleaning vehicle at the time of non-cleaning.

FIG. 6 is a side view of a main part for explaining a cleaning operation in the cleaning vehicle.

FIG. 7 is a front view of a main part for explaining a cleaning operation in the cleaning vehicle.

FIG. 8 is a partially cutaway side view showing a separated state of a cleaning work unit in the cleaning vehicle.

FIG. 9 is a side view of a main part illustrating a conventional example and illustrating a cleaning operation in a cleaning vehicle.

[Explanation of symbols]

1 Forklift (cleaning vehicle) 2 car body 3 front wheels (driving wheels) 4 Rear wheels (direction wheels) 5 driver's seat 6 masts 13 forks 15 seats 16 handles 21 Cleaning means 23 Vehicle width direction axis 24 vehicle longitudinal axis 25 body 25a front of main body 26 Pivoting support 29 Grounding wheel 30 Cleaning section 31 Drive axis in the vehicle width direction 32 brushes 34 Brush drive 36 dust box 39 channels 40 Filter section 41 Filter 42 fans 43 Fan drive unit 50 cylinder device (elevating device) 55 bracket 55a Stopper surface 56 long hole 59 Down limit detection switch 60 rising limit detection switch 62 Lower limit operation part 63 Lifting limit operation part W dust X Forward running Y floor Ya recess Yb corner Z brush rotation direction

Claims (4)

[Claims] 1. A vehicle longitudinal axis is provided at a lower portion of a vehicle body, the rear portion of which is vertically swingably attached to a vehicle body side through a vehicle lateral axis, and the vehicle longitudinal axis is provided with a cleaning means of a cleaning means. The main body is attached so that it can rotate left and right, and on the main body side,
A cleaning work unit having a brush rotatable through a drive shaft in the vehicle width direction is provided, and a lifting device for vertically swinging the vehicle length direction shaft between a front portion of the vehicle length direction shaft and the vehicle body side. A cleaning vehicle, wherein the cleaning vehicle is provided. 2. The cleaning vehicle according to claim 1, wherein the elevating device is configured to allow the vehicle longitudinal axis to ascend and descend within a set range when not operating. 3. The cleaning vehicle according to claim 1, wherein the main body is provided with a ground wheel. 4. The main body of the cleaning means with respect to the vehicle longitudinal axis,
The cleaning vehicle according to any one of claims 1 to 3, wherein the cleaning vehicle is attached to the main body via a removable support.