JPH086816Y2 - Road sweeper - Google Patents

Description

TECHNICAL FIELD The present invention relates to a road cleaning vehicle, and more particularly to a road cleaning vehicle of the type in which a hopper located in front of a driver's seat is front-dumped.

2. Description of the Related Art In this type of conventional road cleaning vehicle, a bucket conveyor is arranged on the rear side of the hopper, and the dust swept forward by the main brush is lifted upward by the bucket conveyor and thrown into the hopper. Is done.

Problems to be solved by the invention In conventional road cleaning vehicles, since the dust is picked up by the bucket conveyor, dust is easily clogged between the rotary conveyor of the bucket conveyor and the conveyor case, which easily causes a failure and maintenance However, the inspection requires a lot of manpower, and the structure of the bucket conveyor is complicated, resulting in high cost. An object of the present invention is to solve the above problems.

Means for Solving the Problems In order to solve the above problems, the present invention provides a chassis with a hopper located in front of the driver's seat so that the front dump can be performed, and the floor surface is swept forward to the lower rear of the hopper. In a road surface cleaning vehicle in which a brush is rotatably provided and dust that has been swept up by the main brush is collected in the hopper, in the above chassis, the lower end is opened facing the main brush and the upper end is the upper rear surface of the hopper. There is a vertical collection path that opens at the bottom of the collection path, and a lower blade that blows up the dust swept up at the lower end of the collection path is provided rotatably in the same direction as the rotation of the main brush. Is provided so as to rotate in a direction opposite to the rotation of the lower blade plate.

The dust on the road surface is swept forward by the rotation of the main brush, and the swept dust is splashed upward by the rotation of the lower blade. In addition, the dust thrown upward is blown forward by the rotation of the upper blade plate and is thrown into the upper portion of the hopper. The dust swept up by the main brush is blown upward by the lower blade, and the dust is thrown forward from the hopper input port by the rotation of the upper blade and stored inside the hopper, so you can throw in the dust from the rear side of the hopper. , When the front dump of the hopper is done, dust does not fall from the input port, so the hopper structure can be simplified.

Embodiment In FIGS. 1 and 2, a road cleaning vehicle 1 is provided with a chassis 3, and the chassis 3 is supported by a front chassis 6 supported by a pair of front wheels 5 and a pair of driven rear wheels 7. The rear chassis 8 and the rear chassis 8 are steerably operated. The rear chassis 8 is provided with a well-known driver's seat 12, and the front chassis 6 is provided with a hopper 15 for accommodating the dust 9 so as to be capable of front dumping by an idler link mechanism 20 described below. The hopper 15 has a dust discharge port 15a on the front side and a large opening 15b communicating with the filter chamber on the upper rear side. Garbage outlet 15a is usually an opening / closing plate
It is closed by 17, and when the hopper 15 is tilted, the opening / closing cylinder 18 is extended to open the opening / closing plate 17. A pair of left and right bifurcated towers are located on the rear side of the front chassis 6.
21 are provided and a pair of hooks are provided at the upper end of each
Rear ends of a pair of arms 25 are rotatably pivoted to 23, and their front ends are pivotally pivoted to the lower front side of the hopper 15. The lower ends of the idler links 27 are pin-connected near the hook 23 side ends of the pair of arms 25.
Both ends of the link 29 are pin-connected to the intermediate portion of the hook 23 and the hook 23, respectively, and the rear end of the tilting cylinder 31 is rotatably pivotally attached to the upper end of the idler link 27, and its front end is rotated to the front side of the hopper 15. It is freely pivoted. Further, a tip end of an elevating cylinder 33 is rotatably attached to an intermediate portion of the pair of arms 25, and a rear end thereof is rotatably attached to a bracket (not shown) attached to the front chassis 6. The arm 25, idler link 27, link 29, tilting cylinder 31, and lifting cylinder
The idler link mechanism 20 is composed of 33.

Next, a main brush 36 for sweeping the floor surface 4 forward is rotatably provided in the lower rear part of the front chassis 6 so that the main brush 36 can be rotated in the arrow direction by a drive device (not shown) as is well known. Further, the front chassis 6 is provided with an elevator device A for carrying the dust 9 swept up by the main brush 36 into the hopper 15. Next, this elevator device A
Will be described. First, the passage member 41 attached to the front chassis 6 forms a vertical collection path 40 whose lower end opens toward the main brush 36 and whose upper end opens toward the upper rear opening 15b of the hopper 15. It is provided. The recovery path 40 is provided so as to have almost the same width as the hopper 15. At the lower end of the collection path 40, a lower blade plate 44 for flying the dust 9 swept up by the main brush 36 upward, and at the upper end of the collection path 40, the dust blown by the lower blade plate 44. An upper blade plate 45 for flying 9 into the hopper 15 is provided as shown in FIG. In FIG. 3, the lower and upper blades 44, 45 have substantially the same width as the hopper 15,
The prisms 42 and 43 are attached to the opposite side surfaces of the prisms 42 and 43 having the same length as these by bolts or the like not shown, respectively.
Shaft members 46 and 47 are attached to both end surfaces of the shaft member. The shaft members 46 and 47 are rotatably supported by bearings 50 and 51 attached to the side plate of the recovery passage 40. One shaft member of the lower blade 44
The rotary shaft of a hydraulic motor 56 fixed to the side plate of the recovery passage 40 is connected to 46, the pulley 52 is attached to the other shaft member 46, and the pulley 52 and the pulley 54 attached to the shaft member 47 are connected to each other. When the belt 57 is cross-crossed to the upper blade 45 and the hydraulic motor 56 is driven to rotate the lower blade 44 in the same direction as the rotation of the main brush 36 (clockwise direction in FIG. 1), the upper blade 45 is Is rotated in the opposite direction. The above belt 57
Instead of this, a rotating shaft of a separate hydraulic motor may be connected to the upper blade plate 45 so as to rotate in the opposite direction with respect to the lower blade plate 45. Reference numeral 60 is a pair of left and right side brushes, 62 is a dustproof cover thereof, 63 is a blow pipe, 65 is a filter, and 66 is a blower.

In the road cleaning vehicle 1 configured as described above, when cleaning the road surface, the dust on the floor surface 4 is brushed by the side brush by traveling.
The collected dust 9 on the floor surface 4 is swept forward by the rotation of the main brush 36 by the 60, and the swept dust is put into the collection path 40. Further, the dust 9 swept into the collection path 40 is blown above the collection path 40 by the rotation of the lower blade plate 44 in the direction of the arrow and sent to the upper blade plate 45 portion, and then the rotation of the upper blade plate 45 in the direction of the arrow. It is thrown forward by, and is thrown into a high place in the hopper 15 through the opening 15b of the hopper 15 and accommodated in the hopper 15. In this way, since the dust 9 is blown to a high place in the hopper 15 by the two-stage vane plates 44 and 45, the dust 9 can be widely distributed in the hopper 15 and deposited in a large amount. When collecting dust on the road into the hopper 15 as described above,
Since the air is sucked into the hopper 15 by the 66, the dust generated by the sweeping of the main brush 36 is collected in the collection path 40.
It can be sucked in to reduce dust when cleaning. When discharging the dust 9 accumulated in the hopper 15, the elevating cylinder 33 is extended and the idler link mechanism 20 is extended.
Is operated, the hopper 15 is lifted upward, and when the tilting cylinder 31 is operated at that position, the hopper 15 tilts forward as shown by the phantom line in FIG. When is opened, the dust in the hopper 15 is front-dumped from the dust discharge port 15a to the loading platform of a dump truck (not shown) or the like. Since this front dump can be operated while looking forward from the driver's seat 12, the work of discharging dust can be facilitated, and the work can be performed accurately and quickly. Further, in the road cleaning vehicle 1 having the above-mentioned configuration, the dust swept up by the main brush 36 is blown and collected by the rotation of the lower blade plate 44 and the upper blade plate 45, so that the configuration for collecting the dust is simple. Is.

Effect of the Invention As described above, in the present invention, since the dust collection path is opened on the upper rear surface of the hopper, it is possible to prevent the dust from falling from the collection path when the hopper is dumped to the front. The dump can be carried out easily and the hopper configuration can be simplified. In addition, the dust swept up by the main brush is splashed upward by the lower blade and the dust is blown forward by the upper blade, so that the dust can be thrown into a high place inside the hopper and the amount of waste stored in the hopper can be increased. Can be made bigger. Further, as described above, since the dust is blown by the lower blade plate and the upper blade plate and collected in the hopper, the structure of the device for collecting the dust can be simplified and the cost can be significantly reduced and maintenance is possible. It has the effect of making inspection easy.

[Brief description of drawings]

FIG. 1 is a side view of a road cleaning vehicle with a main part cut away, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a perspective view of upper and lower blades. 1 ... Road cleaning car, 3 ... Chassis, 4 ... Floor surface, 9 ... Garbage,
12 ... Driver's seat, 15 ... Hopper, 36 ... Main brush, 40 ... Collection path, 44 ... Lower blade, 45 ... Upper blade

Claims (1)

[Scope of utility model registration request] 1. A chassis is provided with a hopper located in front of a driver's seat so as to be capable of front dumping, and a main brush for sweeping a floor surface forward is rotatably provided at a lower rear portion of the hopper so as to be swept by the main brush. In a road surface cleaning vehicle that collects dust into the hopper, the chassis is provided with a vertical collection path in which the lower end opens toward the main brush and the upper end opens toward the upper rear surface of the hopper.
The lower vane that blows up the dust swept up at the lower end of the recovery path is provided rotatably in the same direction as the rotation of the main brush, and the upper vane that disperses the dust into the hopper is provided at the upper end of the recovery path. A road cleaning vehicle that is provided so as to be rotatable in the opposite direction to the rotation of the lower blade.