JPH0571723B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a road cleaning vehicle, particularly a vacuum type road cleaning vehicle.

[Prior Art] A vacuum type road sweeping vehicle is constructed by providing a side brush that can be freely extended on one side or both sides of the vehicle body, and a suction device that can freely touch the ground at the inside rear of the side brush. (Refer to Kaisho 60-228701). That is, the side brush is extended over the edge of the road and rotated when it touches the ground, sweeps up the dust on the edge of the road to the center of the bottom of the vehicle body, sucks up the swept dust with a suction device connected to a blower, and removes the dust during the suction process. The dust is captured in the dust collection hopper.

[Problem to be solved by the invention] In the road cleaning vehicle as described above, when the dust is dry, the dust flies up as the side brush rotates and spreads around, causing a nuisance to pedestrians etc. It was hot. Conventionally, the cleaning truck itself was equipped with a water tank and was also equipped with a water sprinkler, or a separate water truck was used to carry out the cleaning work.

However, there is a limit to the amount of water that can be loaded for watering, and if a large amount is sprayed to prevent dust,
As the water runs out in a short period of time, the dust becomes heavy with water, reducing the suction efficiency.Furthermore, cleaning work has to be stopped to replenish water, which reduces work efficiency.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cleaning vehicle that can prevent dust from rising and dispersing, reduce the amount of water sprayed, and continue working for a long time.

Furthermore, according to the present invention, moisture containing dust can be reduced and the dust can be effectively sucked into the suction device.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a structure that is provided on the outside of the side brush, which is stored within the width of the vehicle body when the side brush is retracted, and which is interlocked with the side brush when the side brush is extended. A dustproof cover is provided on the outside of the side brush.

[Operation] FIGS. 3 and 4 show the state in which the dustproof covers 10, 11, 12, and 13 are extended as the side brushes are extended.

That is, FIG. 3 shows the cleaning work state, and the side brush 9 is removed from between the dustproof covers 10, 11 and 12, 13.
The outer end of the holder is made to protrude and is rotated toward the bottom center of the vehicle body S from the direction in which the vehicle is traveling. In this state, the dust is swept up to the center of the bottom of the vehicle body S, and most of the dust that flies up is not dispersed by the dust-proof covers 10, 11, 12, and 13, and is removed by the suction device 7. It is also attracted.

Next, when stopping the work, when the overhanging rotating shaft 26 of the side brush 9 is rotated by a predetermined angle toward the vehicle body S, the links 25 and 19 are pulled toward the vehicle body S by the brackets 27 and 28, and the dust cover 1
0 and 11 are pulled toward the vehicle body S and folded. At the same time, the link 21 is pulled toward the vehicle body S via the lever 22, the link 24, and the lever 23, and the dustproof covers 12 and 13 are further pulled toward the vehicle body S and folded.

When folded to a predetermined position, the upward cams 31, 33, 34, and 35 provided on the lower dustproof covers 10a, 11a, 12a, and 13a abut against stoppers 32 and others provided in advance at predetermined positions, respectively. Each of them is bent inward at a predetermined angle to release the contact with the ground, thereby eliminating obstacles during movement.

[Example] An example of the present invention will be described below in detail with reference to the drawings.

In Figures 1 and 2, 1 is a driver's seat, 2 is a dust collection hopper, 3 is a filter drum that captures minute dust, 5 is an engine room, 6 is a blower, 7 is a suction device, 8 is a suction pipe, 9 is the side brush.

In the above configuration, the suction pipe 8 provided from the suction device 7 is guided to the dust collection hopper 2, and the side brush 9
The dust collected at the center of the bottom of the vehicle body S is sucked and collected in two dust collection hoppers.

This relates to the side brush 9 portion of the present invention.

The side brush 9 is retracted and pulled up within the width of the vehicle body when the vehicle is moving, and is extended outside the vehicle body and placed in contact with the ground during cleaning.

Therefore, the side brush 9 needs to extend outside the vehicle body. As mentioned above, since the side brush 9 is extended outside the vehicle body and is rotated, dust will fly up if sufficient water is not sprinkled during cleaning.

Therefore, in the present invention, when the side brush 9 is extended, that is, during cleaning work, a dustproof cover is provided that is extended in conjunction with the side brush 9 and located on the outer side of the side brush 9.

In the illustrated embodiment of the present invention, dustproof covers 10, 11, 12, and 13 are each stretched over a frame and are divided into four parts so as to surround the outside end of the side brush 9 except for the outside end. It is made up of. Furthermore, each dustproof cover 10, 1
1, 12, and 13 are divided into upper and lower halves, and the lower ends of the lower dustproof covers 10a, 11a, 12a, and 13a touch the ground when the side brushes 9 are extended, and when the side brushes 9 are retracted, they are retracted within the width of the vehicle body, and at the same time, the lower ends of the lower dust-proof covers 10a, 11a, 12a, and 13a are placed inside. It is configured to be bent at a predetermined angle and released from the ground.

These dustproof covers 10a, 11a, 12a, 13
The grounding action of a enhances the dustproof effect and the dust suction effect.

However, dustproof covers 10, 11, 12, 13
Even if each piece is made of a single piece and a certain gap is provided between it and the road surface to prevent it from dragging, it is possible to obtain an unprecedented dustproof effect.

Next, details of the dustproof covers 10, 11, 12, and 13 will be explained.

As shown in FIGS. 3 and 4, dustproof covers 10 and 11 are connected to the vehicle body front side of the side brush 9 by a hinge 14, and one end of the dustproof cover 10 is rotatably attached to the vehicle body side support part 15. There is.

In addition, a dustproof cover 1 is provided on the rear side of the vehicle body of the side brush 9.
2 and 13 are connected by a hinge 16, and one end of the dustproof cover 13 is rotatably attached to the vehicle body side support part 17. Furthermore, a link 19 is pivotally fixed between the inner surface of the dustproof cover 11 and the main body side support part 18, and a link 21 is pivotally fixed between the inner surface of the dustproof cover 12 and the main body side support part 20. Further, the link 1 is attached to the main body side support portion 18 of the link 19.
A lever 22 integrated with the link 9 is provided, and a lever 23 integrated with the link 21 is provided on the main body side support portion 20 of the link 21.

Then, the tips of both levers 22 and 23 are connected to link 2.
Connected by 4.

Next, a turnbuckle type link 25 is connected to a suitable position of the link 19, and the link 25 is connected to a suitable position of the link 19.
The other end of the brush 5 is connected to brackets 27 and 28 provided on the rotating shaft 26 of the side brush 9.

In the above configuration, when the overhanging rotating shaft 26 is rotated by a predetermined angle when the side brush 9 is stored, the link 25, the link 19, the lever 22, the link 2
4. By the action of the lever 23 and the link 21, the dust-proof covers 10, 11, 1 are closed as shown by the imaginary lines in FIG.
2 and 13 are stored inside the vehicle body S.

Next, an example of a structure in which the lower dustproof covers 10a, 11a, 12a, 13a are bent inward at a predetermined angle when the side brush 9 is stored will be described.

As shown in Figures 5 and 6, the dust cover 11
An upward cam 31 having a roller 30 at its tip is provided close to the hinge 29 of the dustproof cover 11a provided below via a hinge 29, and a link 19 is provided at approximately the same height as the upward cam 31.
A stopper 32 is provided on the top of the housing, with which the upward cam 31 comes into contact when the housing is stored.

That is, when the side brush 9 is stored, the extending rotating shaft 26 is rotated inward by a predetermined angle, and the link 2
5. When the link 19, lever 22, link 24, levers 23 and 21 are folded, the upward cam 31 comes into contact with the stopper 32 provided on the link 19 during the folding process, and as shown in FIG. The dustproof cover 11a is bent inward at a predetermined angle, and as a result, the lower end of the lower dustproof cover 11a is released from grounding.

In the above description, the lower dustproof cover 11a was described, but other lower dustproof covers 10a, 12
a, 13a can be similarly configured.

In this case, the stopper 32 may be provided at an appropriate position on the vehicle body. 33,3 in the figure
4, 35 are lower dustproof covers 10a, 12a, 1
This is an upward cam provided at 3a, and has the same configuration as the above-mentioned upward cam 31.

In the above description, the outer part of the side brush 9 was exclusively described, but if a dustproof cover having the same effect is provided also on the inner part of the side brush 9, the dustproof effect can be further improved. be.

In addition, since only the outer end of the side brush 9 is kept protruding from the dustproof cover, if the side brush 9 collides with an obstacle etc., the dustproof cover can be retracted at the same time in conjunction with the return of the side brush 9. In order to be able to
The dustproof cover will not be damaged by obstacles.

[Effects of the Invention] According to the present invention, it is possible to prevent dust from flying up, so the amount of watering can be reduced.
Not only can work be continued for a long time, but the suction ability is also improved due to the reduction in moisture in the dust, making it possible to carry out efficient and economical cleaning work.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view, FIG. 2 is a plan view, FIG. 3 is a plan view of the main part, FIG. 4 is an enlarged side view of the main part, and FIG. The figure is a sectional view taken along the line V-V in FIG. 3, and FIG. 6 is a sectional view showing the operating state of FIG. 5. 9... Side brush, 10, 11, 12, 13...
Dust cover, S...car body.

Claims (1)

[Claims] 1. A dustproof cover is provided on the outer side of the side brush, which is stored within the width of the vehicle body when the side brush is retracted, extends in conjunction with the side brush when the side brush is extended, and is located on the outer side of the side brush. A road cleaning vehicle characterized by: