JP2000144664A - Cleaning vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a cleaning vehicle having a suction device from leaving unswept portions when it is traveled at a high speed. SOLUTION: A rotary brush device 7 is provided on the front side of the pickup head 2a of a suction device 2 arranged nearly at the center of a vehicle body 1 in the advancing direction of the vehicle body 1. The pickup head 2a is arranged long in the vehicle width direction at the center section of the vehicle body 1, and the rotary brush device 7 is constituted of a rotary brush 5 having nearly the same cleaning width in length as that of the pickup head 2a and a recovery box 6 recovering the dust swept up by the rotary brush 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction device in which a suction port is arranged on a vehicle body such that a suction port faces a road surface, a blower device for applying a suction force to the suction device, and dust sucked from the suction device. And a hopper for collecting road dust by the suction device and collecting the dust in the hopper by the suction device. The present invention relates to a cleaning truck suitable for cleaning a race track or the like.

[0002]

2. Description of the Related Art As a cleaning car, for example, Japanese Patent Publication No. Hei 6-85
As described in Japanese Patent Publication No. 24, the air blown from a blower provided in the open portion of the centrifugal dust separator is circulated through the pressure feeding duct, the pickup head, the suction duct, and the centrifugal dust separator to suck up dust on the road with the pickup head. There is also known an apparatus provided with an air flow cleaning means to be housed in a hopper. The size of the blower of this air flow cleaning means is limited in terms of mounting space, noise, cost, etc. according to the size of the vehicle body, so the suction capacity of the blower is limited. If the speed is high (for example, 10 km / h or more), heavy dust cannot be sucked in, or the dust accumulated in the hopper may not be able to be picked up at once due to the reduced capacity due to clogging of the dust. It cannot be applied to race truck cleaning vehicles, etc., where As a cleaning car, for example, Japanese Patent Publication No. 4-26641 is used to clean the volcanic ash deposited on the road surface without sweeping.
As described in the publication, a suction port having a small cleaning width (length in the vehicle width direction) is provided in a portion deviated to one side in the vehicle body width direction,
A rotary brush with a narrow cleaning width and an elevator mechanism are provided in front of the suction port, and dust swept up by the rotary brush is lifted by the elevator mechanism.

[0003]

Problems to be Solved by the Invention
In the device described in Japanese Patent Publication No. 41, since the elevator mechanism is obstructed by the chassis and cannot be continuously and widely arranged in the width direction, it is necessary to arrange the cleaning width narrow on one side in the left and right direction of the vehicle body. The mouth is also provided with a narrow cleaning width, and a sweeping brush is arranged obliquely in front of the rotating brush so that dust in the central portion of the vehicle body is swept toward the rotating brush by the sweeping brush. Therefore, the part to be cleaned by the rotating brush on the side of the vehicle body is
In the latter part, the suction cleaning is performed again by the suction port.However, cleaning with the rotary brush and the suction port has a problem that the cleaning width is extremely narrow, and a wide cleaning area swept by the sweep brush is swept by the sweep brush. When the dust is left behind, the dust is left as it is, and the remaining amount increases as the cleaning speed of the vehicle body is increased. or,
Since dust is collected by the elevator mechanism, dust swept up with the rotating brush may bounce off the elevator mechanism, and especially heavy dust such as bolts, nuts, stones, etc. will not be suction-cleaned and will be left behind. There is a possibility that it will be. Such a cleaning truck with a risk of unsweeping has to be said to be disqualified for cleaning a race track, which must be cleaned quickly and surely between races. However, the elevator mechanism has a problem that it has a movable part, has a complicated structure, easily causes a failure, and is expensive.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a suction device in which a suction port is arranged on a vehicle body such that a suction port faces a road surface, a blower device for applying a suction force to the suction device, and suction from the suction device. And a hopper for collecting the dust collected by the suction device, wherein the suction device sucks the dust on the road surface and collects the dust in the hopper, pursuing a 100% dust collection rate. A rotatable brush rotatably disposed on the road surface in a forward direction with respect to the vehicle traveling direction of the suction device, and rotatably disposed at a position near the rotatable brush. A collection box capable of collecting the collected dust is provided, and the dust swept up by the rotating brush prior to the suction cleaning by the suction device can be immediately collected in the collection box. Lies in that the configuration was.

According to a second aspect of the present invention, the suction device is disposed in the center of the vehicle body in the vehicle width direction, and the suction width of the suction cleaning by the suction device is set at a position on the front side with respect to the traveling direction of the suction device. A rotatable rotary brush having a length occupying substantially the same cleaning width, and a collection box located near the rotary brush and having a dust receiving port having a length substantially equal to the cleaning width of the sweeping cleaning by the rotary brush. The rotating brush device is long in the vehicle width direction, making it possible to perform two cleanings: sweeping cleaning by the rotating brush device and suction cleaning by the suction device over a wide area in the vehicle width direction at the center of the vehicle body. I did it.

According to the second aspect of the invention, the rotating brush device is provided with at least a pair of left and right wheels rotatably positioned on the front side of the collection box in the vehicle traveling direction, or the rotating brush device is mounted on the vehicle body. On the other hand, it can be arranged to be able to move up and down. In the first and second inventions, the rotary brush is rotatably supported by the brush support frame, and the intermediate portion of the brush support frame in the vehicle width direction is pivotally attached to the support frame provided on the vehicle body so as to be tiltable left and right. Then, the rotating brush can be tilted right and left following the road surface.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cleaning truck according to the present invention will be described with reference to the drawings. In FIGS. 1 and 2 showing a main part of a cleaning car from a plane and a side, respectively, a suction device 2 in which a suction port 2b of a pickup head 2a is arranged to face a road surface is provided in a vehicle body 1,
In the vehicle body 1, a hopper 3 is incorporated at a rear portion, and a blower device 4 for applying a suction force to the suction device 2 is mounted near a central portion. On the lower surface of the vehicle body 1, a rotary brush 5 that can sweep the road surface forward is rotatably disposed at a position on the front side of the suction device 2 in the vehicle traveling direction. Immediately before, a collection box 6 capable of collecting dust swept up by the rotating brush 5 is provided.
And the collection box 6 constitute a rotating brush device 7.

A rubber flap 2a 'is provided around the lower surface of the pickup head 2a so that a strong suction force acts on the suction port 2a. The suction device 2 includes a pickup head 2a that is disposed in the center of the vehicle body 1 in the vehicle width direction, and drives the blower device 4 by a power source (engine) 4a mounted next to the blower device. 4 sucks the air in the hopper 3 and blows air into one end of the pickup head 2a, and the road surface F falls within the full width of the vehicle via the suction passage 3a connected to the other end of the pickup head 2a. The upper dust is sucked and collected in the hopper 3. The pickup head 2
a can be moved up and down by an elevating device 35 similar to an elevating device of the rotating brush device 7 described later.

On the other hand, the rotary brush device 7 has a length occupying almost the same cleaning width as the cleaning width of the suction cleaning by the suction device 2, and is attached to the vehicle body 1 via the parallel link 9 so as to be vertically movable in parallel. An intermediate portion in the vehicle width direction of a box-shaped brush support frame 8 having an open lower portion is pivotally attached to the left and right sides by pivots 10a, 10a, and rotating brushes are provided on both side walls of the brush support frame 8. 5 are rotatably supported via bearings 20 at both ends.
Arms 8a, 8a are provided on the brush support frame 8 on the left and right, respectively, toward the forward direction of the vehicle body, and a pair of left and right wheels 11, 11 are provided at the tips of the arms 8a, 8a.
Is provided rotatably. The wheel 11 uses a margin space in front of the rotating brush device 7 and has a large diameter comparable to the rotating brush so that it can be stably driven even at high speed running. Further, the collection box 6 is stored in such a manner that the collection port 6a is opened to the rotating brush side and can be pulled out to one side of the vehicle body 1 by using the handle 21 immediately before the rotating brush 5 in the traveling direction of the vehicle body. Usually, it is stopped by a not-shown locking member. And the support frame 10
Can be moved up and down by an elevating device 25 arranged above the vehicle body. The lifting device 25 has a tilting arm 27 that is tilted by the operation of the cylinder 12 pivotally attached to a supporting frame 26 fixed in the vehicle body 1, and a pulley 28 provided on the tilting arm 27 and a pulley 29 provided on the supporting frame 26. , 3
Both ends of the wire 13 hung around 0, 31 are directly connected to both ends of the support frame 10, and the wire 13 is pulled or loosened, so that the rotating brush device 7 is moved up and down. I have. In the drawing, reference numeral 14 denotes a motor for imparting rotation to the rotating brush 5, which is fixed to the brush support frame 8, and rotates the rotating brush 5 via a belt 40, pulleys 41 and 42, and a belt 43.

In the cleaning truck constructed as described above, the traveling brush sweeps a wide area under the vehicle body 1 by the rotating brush 5 during traveling, and the swept dust is immediately collected in the collection box 6. Fine dust that has not been swept up through the gaps of the brush bristles or dust that has entered small gaps such as the gaps of drainage pavement is sucked by the subsequent suction device and collected in the hopper 3. As described above, the cleaning truck of the present invention immediately collects the dust swept up by the rotating brush 5 into the collection box 6 prior to the suction cleaning by the suction device, so that even heavy dust such as bolts, nuts, and pebbles can be used. The rotating brush 5 can reliably collect the toner in the collection box 6. As a result, the load on the suction device 2 can be reduced, and the suction device 2 can be made heavy and hard dust such as pebbles.
The flap can be prevented from being damaged, and the rotary brush device 7 sweeps up the large dust and heavy dust beforehand, and the small and light dust is sucked and cleaned by the suction device 2, so that there is no remaining sweep. . Further, as described above, heavy dust is previously cleaned by the rotating brush device 7, and small light dust that is easily sucked by the suction device 2 is cleaned. Therefore, even if the traveling speed of the vehicle body is increased, the two devices 7, 2 is sufficient for cleaning, and there is no remaining unsweeped.

Since the wheels 11 are provided on the front side of the brush support frame 8, during traveling, the wheels 11 move up and down according to the ups and downs of the road surface. 15 relative positions,
Also, since the brush support frame 8 supporting the rotating brush 5 is attached so as to be tiltable left and right, the left and right wheels 11
Are independent of each other and can move up and down following the road,
Even on an uneven road surface, the brush bristles of the horizontally long rotating brush 5 make uniform contact, so that sweeping unevenness is reduced and damage to the rotating brush 5 can be reduced. Also, by combining the rotating brush 5 with the collecting box 6 to form a unit, even if the rotating brush 5 moves up and down or changes its angle, the collecting box 6 also moves integrally with the rotating brush 5 so that the relationship between the two can be maintained. The dust kept properly and swept up by the rotating brush 5 is reliably collected in the collection box 6. In addition, the rotating brush device 7 can be freely adjusted in height by operating a cylinder as needed, or can be raised to the full height and housed in the storage position so as not to be used (FIG. 3B). .

The performances of the sweeping cleaning and the suction cleaning that are exerted in order to eliminate these unsweepable parts are shared so as to clean dust of a type suitable for each cleaning.
Even when driving at high speeds, it can be sufficiently cleaned without changing from low-speed driving, dust can be wiped out from a wide area of the road surface within a short cleaning time, and it can be said that it is perfect for truck race cleaning.

In the embodiment, the rotary brush and the collection box are unitized as a rotary brush device. However, the rotary brush and the collection box are independently attached to the vehicle body, It can be changed as appropriate, such as omitting the elevating / lowering mechanism and the swing mechanism, and the cleaning width can be changed with respect to the vehicle width. Further, the collection box may be disposed above the rotating brush or behind the rotating brush away from the suction device.

[0014]

According to the first and second aspects of the present invention, the suction cleaning is performed after the sweeping cleaning by the rotating brush is completed. Therefore, most of the dust is collected in the collecting box by the first sweeping cleaning, and is collected from the road surface. After being removed, the fine dust remaining on the road surface which has not been swept up through the gaps of the brush bristles is sucked by the suction device, collected in the hopper, and completely cleaned after the cleaning car has traveled. In particular, in the second invention, since the suction device and the rotary brush device are arranged long in the vehicle width direction at the center of the vehicle body, the cleaning width of the vehicle is increased to about the vehicle width, and reliable cleaning is performed with a wide cleaning width. Since the rotating brush and the collection box are unitized as a rotating brush device, the rotating brush and the collecting box can be easily assembled to a vehicle body, and can be easily added to an existing cleaning car later. In addition, a wheel is provided on a brush support frame for supporting the rotating brush, or the brush supporting frame is pivotally attached to the left and right so as to be able to freely tilt, so that the rotating brush smoothly and quietly follows the road surface for cleaning. I can do it for sure. Further, by enabling the rotary brush device to be able to move up and down, the rotary brush device can be raised to the storage position, so that suction cleaning can be performed only by the suction device, and the cleaning mode can be selectively changed to optimize cleaning. It can be carried out.

[Brief description of the drawings]

FIG. 1 is a plan view of a cleaning truck according to the present invention.

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

FIG. 3 is a side view of the rotating brush device showing the elevating device unfolded by 90 degrees.

FIG. 4 is a plan view of the rotating brush device.

[Explanation of symbols]

1. vehicle body, 2. suction device, 2a pickup head, 2a 'flap, 2b suction port,
3. Hopper, 3a suction passage, 4 blower device,
5. Rotating brush, 6 Collection box, 6a Collection port, 7
..Rotating brush device, 8.Brush support frame, 8a.arm, 9..parallel link, 10..support frame, 10a ..
Pivot, 11 ... wheels, 12 ... cylinders, 13 ...
Wire, 14 motor, 20 bearing, 21 handle, 25 lifting device, 26 support frame, 27
.Tilt arms, 28, 29, 30, 31 Pulleys 3
5. Lifting device, 40 belt, 41, 42 pulley, 43 belt, F ... road surface.

Continued on the front page (72) Inventor Haruyuki Kato 143, Yoneno, Inaba, Saya-cho, Kaifu-gun, Aichi F-term (reference) 2D026 AD02

Claims (5)

[Claims] 1. A suction device arranged on a vehicle body such that a suction port faces a road surface, a blower device for applying a suction force to the suction device, and a hopper for collecting dust sucked from the suction device. In a cleaning vehicle, wherein the suction device sucks dust on a road surface and collects the dust in a hopper, a rotation capable of sweeping the road surface forward at a position on the front side with respect to a vehicle body traveling direction of the suction device. While arranging the brush rotatably,
A collection box capable of collecting dust swept up by the rotating brush is disposed in the vicinity of the rotating brush, and the dust swept up by the rotating brush can be immediately collected in the collection box prior to the suction cleaning by the suction device. Cleaning car comprising: 2. A suction device arranged on a vehicle body such that a suction port faces a road surface, a blower device for applying a suction force to the suction device, and a hopper for collecting dust sucked from the suction device. In a cleaning car, wherein the suction device sucks dust on a road surface and collects the dust in a hopper, the suction device is disposed long in a vehicle width direction at a center portion of a vehicle body, and is disposed in a traveling direction of the suction device. At the front position, a rotatable rotary brush having a length substantially occupying the cleaning width of the suction cleaning by the suction device, and a cleaning width of the sweeping cleaning by the rotary brush positioned near the rotary brush. A rotating brush device provided with a collection box having a dust receiving port of substantially the same length is disposed long in the vehicle width direction, and is adapted to a wide area in the vehicle width direction at the center of the vehicle body. And a cleaning brush capable of performing two cleaning operations: sweeping cleaning by a rotating brush device and suction cleaning by a suction device. 3. The cleaning vehicle according to claim 2, wherein the rotating brush device is provided with at least a pair of left and right wheels rotatably positioned on the front side of the collection box in the vehicle traveling direction. 4. The cleaning vehicle according to claim 2, wherein the rotating brush device is disposed so as to be able to move up and down with respect to the vehicle body. 5. A rotary brush is rotatably supported by a brush support frame, and an intermediate portion of the brush support frame in a vehicle width direction is pivotally attached to a support frame provided on a vehicle body so as to be tiltable left and right, and the rotary brush is mounted on a road surface. The cleaning vehicle according to any one of claims 1 to 4, wherein the cleaning vehicle is configured to be tilted right and left in a following manner.