JPH03103518A - Pavement cleaning vehicle - Google Patents

Abstract

PURPOSE:To prevent soaring of powder dust during cleaning work and the reduce the amount of sprinkling water by a method wherein dust protecting covers protrusible outwardly from a vehicle and retractable in the vehicle in linkage movement of side brushes are mounted outside brushes. CONSTITUTION:Side brushes 9 are structured such that the brushes are contained within the width of a car body during moving and running and are stretched outwardly of a car body 1 during cleaning work and rotatable and can be earthed. A dust protecting cover is formed with four divided dust protecting cover sections 10, 11, 12, and 13 stretchable in linkage with the movement of the side brushes 9. Each section is further divided into two upper and the lower parts, the lower ends of lower dust protecting covers 10a, 11a, 12a, and 13a are earthed when the side brushes 9 are stretched, and unearthed when the side brushes 9 are contained. This constitution enables roaring of powder dust during a work, and permits reduction of the amount of sprinkling water.

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.

[Conventional technology: Vacuum-type road sweeping vehicles have a structure in which side brushes that can extend freely on one or both sides of the vehicle body are provided, and a suction device that can freely touch the ground is provided at the rear inside of the side brushes. Tokukai 1986
(Refer to Publication No.-228701). That is, the above-mentioned 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 the collected dust with a suction device connected to a blower, and removes the dust during the suction process. The dust is captured in a 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 something. Conventionally, the cleaning truck itself was equipped with a water tank and was also equipped with a water spray system, or a separate water-reducing 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.
If a large amount is sprayed to prevent dust, the water will run out in a short period of time, and the dust will become heavy with water, reducing suction efficiency.Furthermore, cleaning operations must be stopped to replenish water, reducing work efficiency. The result was a decrease in

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.

Further, 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. It is designed with a dustproof cover that extends out and is located on the outside of the side brush. [Function] Figures 3 and 4 show the dustproof cover 10. 11, 12. 13 is shown in an extended state.

That is, FIG. 3 shows the state of cleaning work, and the dustproof cover 1 is
0. 11 and 12. The outer end of the side brush 9 is made to protrude from between 13 and rotated toward the bottom center of the vehicle body S from the direction of travel of the vehicle. 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 on the dust cover 10.11, 12. 13, the dust is not dispersed and is sucked in by the suction device 7 along with the dust.

Next, when the work is stopped, when the extending rotating shaft 26 of the side brush 9 is rotated by a predetermined angle toward the vehicle body S, the bracket 2
7. 28, the links 25 and 19 are pulled toward the vehicle body S, and the dust cover 10. 11 is pulled toward the vehicle body S side and folded. At the same time, the link 21 is pulled toward the vehicle body S via the lever 22, link 24, and lever 23, and the dust cover 12. 13 is pulled toward the vehicle body S side and folded.

When folded to a predetermined position, the upward cams 31, 33, 34, 35 provided on the lower dustproof covers 10a, lla, 12a, 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 structure, the suction pipe 8 provided from the suction device 7
is guided to the dust collecting hopper 2, and the dust swept to the center of the bottom of the vehicle body S by the side brush 9 is sucked and collected in the dust collecting hopper 2.

The present invention relates to the side brush 9 section.

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,
A dustproof cover is provided which extends out in conjunction with the side brush 9 and is positioned outside the side brush 9 during cleaning work.

In the illustrated embodiment of the present invention, the dustproof cover 10. 11
, 12. It consists of 13. Furthermore, each dustproof cover 10. 11, 12. 13 is divided into upper and lower halves, with lower dustproof covers 10a, lla, 12a
, 13a touch the ground when the side brush 9 is extended, and when the side brush 9 is retracted, it is bent inward at a predetermined angle at the same time as it is stored within the width of the vehicle body, and is released from the ground.

These dustproof covers 10a, lla, 12a, 13a
The grounding effect enhances the dust prevention effect and dust suction effect.

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

Next, dustproof cover 10. 11, 12. The details of part 13 will be explained.

As shown in FIGS. 3 and 4, a dustproof cover 10 and l1 are connected to the front side of the vehicle body of the side brush 9 by a hinge l4, and one end of the dustproof cover 10 is rotatably attached to the vehicle body side support part 15. There is.

In addition, dustproof covers 12 and 13 are provided on the rear side of the vehicle body of the side brush 9.
are connected by a hinge 16, and one end of the dustproof cover 13 is rotatably attached to the vehicle body side support part l7.

Further, a link 19 is pivotally fixed between the inner surface of the dustproof cover 11 and the main body side support section 18, and a link 21 is pivoted between the inner surface of the dustproof cover 12 and the main body side support section 20. Furthermore, the main body side support portion 18 of the link 19 has a link l.
A lever 22 integral with the link 9 is provided, and a lever 23 integral with the link 2l is provided on the main body side support portion 20 of the link 21.

And both levers 22. The tips of 23 are connected by a link 24.

Next, a turnbuckle type link 25 is connected to a suitable position of the link 19, and the other end of the link 25 is attached to a bracket 27.
28.

In the above structure, when the overhanging rotating shaft 26 is rotated by a predetermined angle when the side brush 9 is retracted, the action of the link 25, link 19, lever 22, link 24, lever 23, and link 2l causes the virtual Dust cover 10 as shown by the line. 11, 12. 13 is stored inside the vehicle body S.

Next, the lower dustproof cover 1 when the side brush 9 is stored.
An example of a structure in which 0a, lla, 12a, and 13a are bent inward at a predetermined angle will be described.

As shown in FIGS. 5 and 6, an upward cam 31 having a roller 30 at its tip is provided in close proximity to the hinge 29 of the dust-proof cover 11a provided below the dust-proof cover 11 via a hinge 29. A stopper 32 with which the upward cam 31 abuts when retracted is provided on a link 19 provided at approximately the same height as the upward cam 3l.

That is, when the side brush 9 is stored, the extending rotating shaft 26 is rotated inward by a predetermined angle, and the links 25 and 19
, when the lever 22, link 24, levers 23 and 21 are folded, the upward cam 31 abuts against the stopper 32 provided on the link 19 during the folding process, and as shown in FIG. It is bent inward at a predetermined angle, and as a result, the lower end of the lower dustproof cover 11a is released from the ground.

The above description has been about the lower dustproof cover 11a, but other lower dustproof covers 10a, 12a, 13a
can be similarly configured.

In this case, the stopper 32 may be provided at an appropriate position on the vehicle body. 33 in the figure. 34. Reference numeral 35 indicates an upward cam provided on the lower dustproof covers 10a, 12a, 13a, and has the same structure as the above-mentioned upward cam 3l.

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 is also retracted at the same time as the side brush 9 returns. , 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 water sprinkled can be reduced, and work can be continued for a long time. This makes it possible to perform cleaning tasks more efficiently and economically.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and the first construction drawing is a side view, the second figure is a plan view, the third figure is a plan view of the main part, the fourth figure is an enlarged side view of the main part, and the fifth figure is a side view. The figure is a sectional view on the line V-v in Figure 3, and Figure 6.
This figure is a sectional view showing the operating state of FIG. 5. 9...side brush, 10, 11, 12, 13...
・Dustproof power bar S...vehicle body.

Claims (1)

[Claims] A dustproof cover 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, extends in conjunction with the side brush when the side brush is extended, and is located on the outside of the side brush. A road cleaning vehicle featuring: