JPH0149845B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning vehicle, and more particularly to a cleaning vehicle for cleaning sign boards installed at high places above roads.

Conventionally, the above-mentioned cleaning of sign boards has been carried out manually by a worker riding on a gondola that is lifted and lowered by a lift mounted on a self-propelled vehicle such as a truck. The work by such workers not only requires a great deal of effort, but also has the disadvantage of being dangerous due to the high location.

The present invention eliminates the above-mentioned drawbacks of the conventional cleaning vehicle, eliminates the need for actual manual labor by the operator, eliminates danger, and provides a cleaning vehicle that can perform work quickly. The purpose is to

That is, in this invention, a self-propelled vehicle such as a truck is provided with an elevating device that is moved up and down by a first actuating member, a rotating platform is provided on the elevating device, and a rotating platform is provided on the rotating platform that is rotated by a second actuating member. A rotating drum brush is mounted horizontally, and this rotating drum brush is moved horizontally and perpendicularly to its rotation axis by a third actuating member, and cleaning water is spread around the drum brush. A cleaning work vehicle characterized by being equipped with a jet nozzle.

The embodiments shown in the drawings will be described below.

As shown in the drawings, 1 is a self-propelled vehicle such as a truck, and a lifting device 3 is installed on a body 2 of the self-propelled vehicle 1. In this embodiment, the elevating device 3 consists of a pantograph equipped with multi-stage links 5 that extend and contract in the vertical direction by means of a hydraulic cylinder 4 (see FIG. 5). It is adapted to move in the longitudinal direction of the vehicle 1 along the rail 6'.

The lifting device 3 has a base 6 on its upper part, and a cleaning device 7 is installed on the base 6. The cleaning device 7 has a swivel base 8, and although this swivel base 8 is not shown, it uses a well-known mechanism comprising, for example, a rack that moves linearly by a hydraulic cylinder and a pinion that meshes with the rack and rotates. It is designed to rotate with respect to the base 6.

A pedestal 10 is slidably installed on the swivel table 8 via a rail 9, and furthermore, a
A machine frame 12 in which a pair of drum brushes 11 are connected in series and accommodated horizontally is slidably installed.
A rod portion 13b of an electric cylinder 13 whose cylinder portion 13a is pivotally connected to the swivel table 8 is pivotally connected to the pedestal 10, and the operation of the electric cylinder 13 causes the pedestal 1
Therefore, the drum brush 11 moves in its radial direction. Due to its radial movement, the drum brush 11 moves the sign board 1 as shown in FIG.
4, pressure acts on the electric cylinder 13 as a reaction, but the electric cylinder 13 is equipped with a member (for example, a press damper manufactured by Tsubakimoto Chain Co., Ltd.) that stops its operation when a predetermined pressure is reached. It is. The machine frame 12 has a rod portion 15b of a hydraulic cylinder 15, the cylinder portion 15a of which is pivotally connected to a frame.
is pivotally mounted, and the operation of this hydraulic cylinder 15 causes the machine frame 12 and therefore the drum brush 11 to move in its axial direction.

A hydraulic motor 16 is attached to the side of the machine frame 12, and the drum brush 11 is rotated about its axis by the hydraulic motor 16. There is a fourth in frame 12.
As shown in detail in the figure, a large number of cleaning water nozzles 17 are provided above the drum brush 11 and spray cleaning water toward the front surface of the drum brush 11. 18 is a rubber water receiving plate, 19 is a nylon wiping brush, and 20 is a water collection gutter. First,
In FIG. 2, 21 is a generator for energizing the electric cylinder, 22 is a tank that supplies water to the nozzle 17, 23 is an operation panel, and 24 is an outrigger.

Next, the operation of the above-mentioned device will be explained with reference mainly to FIGS. 4 to 6.

While the vehicle 1 is traveling, the pantograph constituting the lifting device 3 is shortened, the cleaning device 7 is in the lowered position, and the drum brush 11 is in a position facing the side of the vehicle 1.

After the vehicle 1 is moved below the signboard 14 and stopped, and the al trigger 24 is activated, the elevating device 3 is moved back and forth by the operation of its hydraulic cylinder, and the longitudinal position relative to the signboard 14 is adjusted as appropriate. . Further, the swivel table 8 is rotated by the mechanism,
Thereby, the drum brush 11 is moved to a position facing the front of the vehicle 1. Next, the hydraulic cylinder 4 is actuated to extend the pantograph, thereby raising the cleaning device 7 to the level of the upper end of the signboard 14.

As described above, attach the drum brush 11 to the sign board 1.
4, the hydraulic motor 16 is activated to rotate the drum brush 11, and the electric cylinder 13 is activated to move the drum brush 11 in its radial direction toward the sign board 14, thereby impacting the sign board. Match. Due to this collision, the electric cylinder 1
When the pressure acting on the press damper 3 reaches a predetermined value, the electric cylinder 13 stops operating according to an instruction from the press damper, and the hydraulic cylinder 4 operates in the opposite direction, shortening the pantograph and closing the cleaning device 7. Then, the drum brush 11 starts descending. At the same time, cleaning water is jetted from the nozzle 17, and the sign board 14 is cleaned by rotating the drum brush 11 while spraying water onto the sign board 14.

During that time, the drum brush 11 continues to descend, and when a predetermined time (several seconds) has elapsed after the electric cylinder 13 stopped, the electric cylinder 13 is activated again according to instructions from a timer built into the operation panel 23, and the drum brush 11 is activated again.
1 moves toward the signboard 14, and the electric cylinder 1
When the pressure acting on 4 reaches a predetermined value, its operation is stopped in the same way as above. Thereafter, the same operation is repeated; in other words, since the sign board 14 is generally installed at an inclination so that it can be easily seen from below, the drum brush 11 descends in stages according to the inclination, as shown in FIG. Clean the sign board 14 from the top end to the bottom end.

As the drum brush 11 descends, the cleaning water adhering to the sign board 14 is removed by the wiping brush 19.
The washed muddy water is wiped off by the water collection gutter 20.
After that, they are collected at a predetermined location. When the operator confirms that the drum brush 11 has reached the lower end of the sign board 14, the drum brush 11 is moved to the bottom of the sign board 14.
move back away from the If the width of the sign board 14 is large and cannot be cleaned in one lowering,
While raising the drum brush 11 again, the hydraulic cylinder 15 is operated to move the drum brush 11 in its axial direction, that is, in the width direction of the sign plate 14, and as before, the drum brush 11 is lowered step by step to remove the sign. Clean the board.

In the above embodiments, hydraulic cylinders, hydraulic motors, etc. were used to operate each member, but not limited to these, various operating members can be used.
In addition, various changes can be made to this invention without departing from the scope of the claims.

This invention is as described above, in which a lifting device provided on a self-propelled vehicle is raised and lowered by a first actuating member, a swivel table is provided on the lifting device, and a swivel table is provided on the swivel table by a second actuating member. A rotating drum brush is mounted horizontally, and this rotating drum brush is moved horizontally and perpendicularly to the rotation axis by a third actuating member, and a jet nozzle is installed around the drum brush. Since the cleaning water is spouted from the swivel, when the vehicle is moving, the first actuating member lowers the swivel base using the lifting device, and the rotation of the swivel base moves the rotating drum brush in the direction of travel of the vehicle. The rotating drum brushes are housed in the vehicle parallel to each other so that they do not protrude outside and become a nuisance, and at the cleaning site, the rotating drum brushes can be easily attached to the sign board as the vehicle moves forward and backward. To enable alignment, the rotary drum brush is rotated by the swivel base to face the direction of vehicle movement, and raised by the lifting device to a position facing the sign plate.
rotating a rotating drum brush by an actuating member;
The third actuating member brings the brush into contact with the sign board, the elevating device raises and lowers the brush, and the water jetted from the jet nozzle cleans the sign board. In this way, the work is not only carried out quickly without any manual effort by the worker, but also has the effect of eliminating danger to the worker.

[Brief explanation of drawings]

Fig. 1 is a plan view showing one embodiment of the present invention, Fig. 2 is a front view of the same as above, Fig. 3 is a right side view of the same as above, Fig. 4 is a side view showing the drum brush in detail; FIG. 5 is a front view showing the working state, and FIG. 6 is an explanatory diagram showing the descending path of the drum brush. DESCRIPTION OF SYMBOLS 1... Self-propelled vehicle, 3... Lifting device, 4... Hydraulic cylinder (first operating member), 7... Cleaning device, 1
1... Drum brush, 13... Electric cylinder (third operating member), 14... Sign board, 16... Hydraulic motor (second operating member), 17... Nozzle.

Claims (1)

[Claims] 1. A self-propelled vehicle such as a truck is provided with an elevating device that is raised and lowered by a first actuating member, a swivel is provided on the elevating device, and a rotating drum brush is mounted on the swivel that is rotated by a second actuating member. The rotary drum brush is moved horizontally and perpendicularly to its rotation axis by a third actuating member, and a cleaning water jet nozzle is provided around the drum brush. A cleaning work vehicle characterized by: