JP2003034916A - Chipping road surface cleaning method and air jetting device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely remove dust and other foreign matters or the like on a chipping road surface in which reinforcing bars are streched upon the upper face. SOLUTION: High pressure air is jetted toward the chipping road surface 1 from above the streched reinforcing bars 53 of the chipping road surface 1 after chipping work, the dust and the other foreign matters are sequentially moved forward by jet pressure, and the dust and the other foreign matters moved to a final end part are sucked and removed by a suction device 55.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning a chipped road surface and an air injection device used for the method.

[0002]

2. Description of the Related Art Conventionally, in order to repair a damaged road surface, for example, after carrying out a chiseling operation of blowing off the road surface with high-pressure water by a water jet, on the chiseled road surface,
For example, reinforcing bars are stretched vertically and horizontally, and pavement materials such as concrete are constructed on the reinforcing bars.

[0003]

The top surface of the chip road surface is
When newly constructing concrete, it becomes an important element to integrate new and old concrete. For this reason, it is absolutely necessary that the upper surface of the chipping road surface is free of dust and other foreign matter. Therefore, the chipping road surface is cleaned after the chipping work, and dust and other foreign matter are removed so as not to remain.

However, after the chipping work as a work process, since the reinforcing bars are stretched vertically / horizontally or diagonally on the chipping road surface, during the work, dust and other foreign substances fall on the chipping road surface. . Therefore, they will be removed again, but since the reinforcing bars are stretched vertically and horizontally on the upper surface of the chisel road surface, the work is difficult,
Moreover, it is the current situation that the reinforcing bars interfere with the removal of the materials.

Therefore, an object of the present invention is to provide a method for cleaning a chisel road surface which is excellent in workability and can be surely removed, and an air injection device used for the method.

[0006]

In order to achieve the above object, according to claim 1 of the present invention, longitudinally, laterally or diagonally reinforcing bars are arranged on the chipping road surface after the chipping work, and the reinforcing bars are arranged from above. Inject high-pressure air to the chip surface,
It is characterized in that dust, other foreign matter, etc. are sequentially moved forward by the injection pressure, and the dust, other foreign matter, etc. moved to the final end are sucked and removed by a suction device.

As a result, even if the reinforcing bar is stretched over the chipped road surface, it becomes possible to move the reinforcing bar from the upper side to the front side by injection pressure without any trouble.
It is possible to surely suck and remove the moved dust and other foreign matter at the final end.

Further, according to a second aspect of the present invention, a trolley, which is arranged so as to straddle the chisel road surface, is provided with injection nozzles for injecting high-pressure air toward the chisel road surface in a row at predetermined intervals. The injection nozzles are reciprocally movable in the vehicle width direction by a predetermined distance, and the nozzle port is swingable in the vehicle width direction.

With this, by swinging the nozzle openings while reciprocating the injection nozzles for a predetermined distance, the number of injection nozzles can be reduced, and moreover, the chipping road surface on which the reinforcing bars are stretched can be reliably maintained from end to end. A high injection pressure can be applied to.

Further, the dust nozzles and other foreign substances are surely moved forward by the horizontal one-row jet nozzles.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings of FIGS.

FIG. 1 is a schematic front view of an air injection device 3 used for cleaning the chipped road surface 1, and FIG. 2 is a schematic plan view thereof.

The air injecting device 3 is provided on both sides with a power generator 7 as a power source and an air compressor 9 for generating high pressure air, which are mounted on a bogie 5 arranged so as to straddle the chisel road surface 1. The left and right traveling wheels 11, 11 enable traveling.

The left and right running wheels 11, 11 are the same as the chipped road surface 1.
The guide rails 13 are laid on the left and right sides of the guide rail 13, and as shown in FIG. 2 and FIG. To one traveling wheel 11 and to the other traveling wheel 11 via the transmission rod 21 and the transmission chain 2.
The rotational power that has been decelerated via 3 is applied.

The jet nozzles 25 are supported on the front surface of the carriage 5 in a horizontal row at a predetermined interval by a swinging mechanism 27.

The swing mechanism 27 is provided with a movable carriage 31 which is movable on a left and right side of a guide member 29 which is fixedly supported on the front surface of the carriage 5 and which is long in the vehicle width direction.
Further, a nozzle support member 33, which is long in the vehicle width direction and in which the injection nozzle 25 is supported at a predetermined interval, is supported at both ends.

As shown in FIG. 4, the moving carriage 31 has a driving moving carriage on the right side and a driven moving carriage on the left side, and the right moving carriage 31 for driving has a moving carriage drive. The pulling control is performed in the vehicle width direction via the transmission chain 37 to which the rotational power decelerated from the motor 35 is applied.

The moving carriage drive motor 35 is rotated in the normal or reverse direction by being detected by a position detection sensor (not shown) when the right-side moving carriage 31 for driving moves a predetermined distance in the vehicle width direction. The transmission chain 37 is adapted to be supplied with rotational power for clockwise rotation or counterclockwise rotation.

On the other hand, each of the injection nozzles 25 supported by the nozzle support member 33 is connected to and communicates with the air compressor 9, and a nozzle port 25a for injecting air toward the chisel road surface 1 is shown in FIGS. As described above, the nozzle swinging device 39 can swing in the vehicle width direction.

The nozzle rocking device 39 includes the nozzle support member 3
One of the crank rods 43 is connected to a support member 41 that swingably supports the injection nozzle 25 with respect to No. 3.
The other side of the crank rod 43 is connected to a position eccentric from the center of the rotary plate 45. The rotary plate 45 rotates about a rotary shaft 49 to which rotary power is given by the nozzle swing drive motor 47, so that the crank rod 4 is rotated.
3 has a structure for giving a crank motion for swinging the nozzle opening 25a of the injection nozzle 25 by a predetermined angle.

Hereinafter, the nozzle support member 33 of each injection nozzle
The support member 41, which is swingably supported with respect to the above, is sequentially interlocked and connected via the crank rod 43, so that the swinging motion of the nozzle openings 25a of the respective injection nozzles 25 is secured at the same time. There is.

Next, a method of cleaning the chipped road surface 1 will be described.

First, for example, a high-pressure water jet is jetted from above a damaged road surface to carry out chiseling work. After the chipping work is completed, the left and right molds 51 to 5 are formed on the chipped road surface 1.
Reinforce the reinforcing bars 53 that are combined horizontally and diagonally over 1. Subsequently, after the traveling wheels 11 of the air injection device 3 are set on the guide rails 13 laid outside the left and right molds 51, the air injection device 3 is moved in the arrow direction as shown in FIG. High-pressure air is jetted from the nozzle opening 25a of No. 25 toward the chip road surface 1.

At this time, even if the reinforcing bar 53 is stretched over the upper surface of the chisel road surface 1, a reliable injection pressure can be obtained over the entire area from the form frame 51 to the form frame 51, which is the end of the chisel road surface 1, without any trouble. . Water, dust, and other foreign matter during chipping work are sequentially moved forward by the swinging horizontal injection pressure.

Dust and other foreign matter moved by the injection pressure are suctioned and removed by the suction device 55 at the final end.

As a result, by pouring new concrete from above the reinforcing bar 53, reliable integration of new and old concrete can be obtained.

In this embodiment, the means for using the water jet for the chipping work has been described, but the chipping work may be performed by hitting particles like shot peening.

[0028]

As described above, according to claim 1 of the present invention, even if the reinforcing bar is stretched over the chisel road surface, dust, other foreign matter, and the like are blown to the final end by the injection pressure. It is possible to move it without any trouble, and it is possible to reliably suck and remove it at the final end.

According to the second aspect of the present invention, it is possible to reduce the number of injection nozzles and yet to reliably apply a high injection pressure from one end to the other of the chip road surface on which the reinforcing bars are stretched. it can. Moreover, it is possible to reliably move the dust, other foreign matter, and the like forward by the jet nozzles arranged in a line.

[Brief description of drawings]

FIG. 1 is a schematic front view of an air injection device according to the present invention.

2 is a schematic plan view of FIG.

FIG. 3 is an explanatory diagram showing a power transmission state to one traveling wheel.

FIG. 4 is an enlarged schematic explanatory view of one side of a swing mechanism.

FIG. 5 is a schematic explanatory diagram of a drive region of the nozzle rocking device.

6 is a schematic sectional view taken along the line AA of FIG.

FIG. 7 is a schematic plan view showing a method for cleaning a chipped road surface.

[Explanation of symbols]

1 Chip road surface 5 dolly 25 injection nozzle 25a nozzle mouth 53 rebar 55 Suction device

Claims (2)

[Claims] 1. Reinforcing bars are arranged longitudinally, laterally or diagonally on the chipping road surface after the chipping work, and high-pressure air is jetted from above the reinforcing bar toward the chipping road surface, and the jetting pressure causes dust and other foreign matter. And the like are sequentially moved forward, and dust and other foreign matter that have been moved to the final end are sucked and removed by a suction device. 2. A traveling carriage that is arranged so as to straddle a chisel road surface is provided with jet nozzles for jetting high-pressure air toward the chisel road surface in a row in a row at a predetermined interval. An air injection device, which is capable of reciprocating a predetermined distance in the width direction and having a nozzle opening that can swing in the vehicle width direction.