JPH0320321Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a road paver that repairs road surfaces.

"Prior Art" Roads have many buried objects such as water pipes located underground, and when repairing these water pipes, etc., the road must be dug up.

For this work, first, a cutter is used to cut a predetermined section of the road surface hardened with a bituminous mixture such as asphalt in an approximately straight line, the asphalt portion is removed, the soil is dug up, and the predetermined construction work is carried out. After that, the soil is filled in again and the surface is paved with asphalt.

When repairing this road surface, some kerfs were formed at the joint between the old road surface and the newly resurfaced road surface, or there was a difference in the appearance of the color between the two. It had already been formed.

If such cut grooves or color steps are formed, there is a risk that rainwater and the like may enter and cause serious damage to the road surface, and there is also the problem that the appearance of the road becomes unsightly.

Therefore, some type of repair must be performed on this joint, and the conventional countermeasure is to sprinkle a mucilage agent such as coal tar on the area, sprinkle sand on top of this, and then apply this sand on top of the mucilage agent. A process is being carried out to blur the surface by brushing it on.

``The problem that the invention seeks to solve'' Therefore, during this treatment, the application of mucus agent,
The three steps of sand spreading and sand brushing must be performed individually, and the work is done at long intervals along the road surface, which is extremely time-consuming and inefficient, and requires a lot of labor. It becomes expensive and uneconomical,
There are drawbacks and inconveniences such as the inability to accurately apply the coating in a band along the seam, and furthermore, uneven coating occurs.

The present invention is a road paving machine devised to eliminate the above-mentioned drawbacks and inconveniences of the conventional road pavers. The purpose is to ensure that this can be achieved.

"Means for Solving the Problem" Hereinafter, the configuration of the present invention will be described based on drawings showing embodiments of the present invention.

In the road paver of the present invention, a main body 1 has a slime agent tank 2 for storing a slime agent such as coal tar, and a sand tank 3 for storing sand.

Then, the nozzle body 11, the discharge port 14, and the brush body 16 are moved along an imaginary straight line in the front and rear direction at the lower end of one side of the main body 1, which can move forward.
are sequentially arranged from the front end of the main body 1.

The nozzle body 11 is for spouting the mucus agent pumped from the mucus agent tank 2 described above, and the discharge port 14 is located at the rear of this nozzle body 11.
The sand sent from the sand tank 3 described above is discharged, and a brush body 16 is located behind the discharge port 14 to brush and apply the discharged sand onto the ejected slime agent.

"Function" In the above-mentioned configuration, the main body 1 of the road paver of the present invention is arranged so that an imaginary straight line in the front and back direction in which the nozzle body 11, the discharge port 14, and the brush body 16 are arranged is on the road surface. By driving in a posture that matches the predetermined seam, the mucus agent ejected from the nozzle body 11 can be reliably sprayed onto the predetermined joint portion of the road surface, and then the mucus agent can be sprayed onto the joint of the road surface onto which the mucus agent has been sprayed. Sand is discharged from the discharge port 14 and sprinkled on the area, and the brush body 16 moves while tracing the road surface from which the sand was discharged, thereby evenly brushing and applying the sand onto the mucus agent.

Therefore, in one run of the main body 1, it is possible to spray the mucilage on the above-mentioned predetermined joints on the road surface, discharge and scatter the sand, and brush and apply the mucus on the mucilage while tracing the sand. become.

In this case, since the nozzle body 11, the discharge port 14, and the brush body 16 are located along an imaginary straight line in the front-rear direction, the above-mentioned work can be reliably accomplished without positional deviation.

Since the above-mentioned imaginary straight line is arranged in the front-rear direction along the side edge of the main body 1, it is easy to align it with a predetermined joint part of the road surface.
It is possible to operate this state by looking in from the side.

"Example" The main body 1 has a storage tank 2 for a mucus agent, a sand tank 3 for storing sand, and a tank 4 for storing water. A pump 5 disposed in the middle of the connecting pipe 13 communicates with the nozzle body 11, and the mucus agent is pumped and ejected from the nozzle body 11.

The nozzle body 11 is arranged at the lower end of one side of the front end of the main body 1, and is movable up and down in this position, so that the distance between the jet opening end and the road surface can be adjusted. The spray range of the mucus agent is controlled.

Further, a guide piece 12 formed of a rubber material or the like is provided hanging down inside the nozzle body 11 to prevent the ejected mucus agent from flowing out to other parts of the road surface.

The main body 1 has a front wheel 7 and a rear wheel 9, and is capable of running smoothly.As a means of running, it is conceivable to use a predetermined power, but it is possible to move slowly with delicate control. In order to achieve such a forward movement, it is preferable to use human power, and therefore, a handle 10 for pushing by hand is provided at the rear end of the main body 1.

It is desirable that the wheels have a so-called caster structure that allows them to freely turn around an axis at a predetermined angle to the wheel axis so that they can smoothly turn a certain curve. If all of them have this structure, the caster shaft will rotate too much and become unstable, making it difficult to control.

Therefore, in the illustrated embodiment, the pair of front wheels 7 are rotatably assembled to the main body 1 via the axle 7, and
The rear wheel 9 has a caster structure and is attached to the center of the rear end of the main body 1.

As mentioned above, the nozzle body 11 etc. are arranged at the side end of the main body 1 so that the state of the mucus agent ejected from the nozzle body 11 can be visually confirmed.
The sprayed mucous agent, etc. is applied to the rear wheel 9 of the main body 1 while the vehicle is running.
The design is also designed to prevent it from being stepped on by workers or workers.

The pump 4 described above is driven by a power source 6 built into the main body 1.

Next, there are various possible means for discharging the sand from the sand tank 3 from the discharge port 14.
The structure must be such that the appropriate amount can be evenly distributed in the designated locations.

Here, a screw conveyor 15 extending above the discharge port 14 is arranged at the lower end of the sand tank 3, and this screw conveyor 15 is driven by the power source 6 of the pump 4 described above. The sand tank 3 is rotated, and the sand tank 3 is rotated so that the sand in the sand tank 3 can be stirred and the sand can be reliably dropped into the upstream position of the screw conveyor 15.
A stirring device 17 that is operated by the power of the screw conveyor 15 is arranged inside.

In addition, in the illustrated embodiment, the main body 1 is
A tank 4 is provided to store water.

Since the mucilage agent is an emulsion whose main component is coal tar, etc., after use, the nozzle body 11 and the connecting pipe 1 must be
There is a problem that the space between the two and three is easily clogged. Therefore, in order to clean the inside of the connecting pipe 13 after use, the water in the tank 4 is pumped between the nozzle body 11 and the connecting pipe 13, and a predetermined pot is placed in a part of the connecting pipe 13. This allows you to switch between spraying mucus and water.

"Effects" The present invention has the structure and functions as explained above.

Therefore, when repairing a road surface, it is necessary to spray a slimy agent such as coal tar on the joint between the old road surface and the newly resurfaced road surface, sprinkle sand, and then smooth out the sand. Therefore, it is possible to reliably bury the cut groove formed in this area, blur the difference in color at the boundary area, and improve the external appearance. This can be achieved with just one pass of the invented road paver, and since the above operation can be performed linearly as the road paver moves, it is possible to extremely reliably level the area without protruding from the joint, and it is possible to do it manually. The work efficiency is dramatically improved because it is not caused by water, it is economical because the number of workers can be kept to a minimum, and the aesthetic appearance is ensured because the mucus agent does not flow out onto the road surface. , has many excellent effects.

[Brief explanation of drawings]

FIG. 1 is a front view of the present invention. FIG. 2 is a plan sectional view. Explanation of symbols, 1... Main body, 2... Mucus tank, 3... Sand tank, 5... Pump, 11... Nozzle body, 11... Guide piece, 14... Outlet, 1
6...Brush body.

Claims (1)

[Scope of utility model registration request] It has a mucus agent tank 2 that stores a mucus agent such as coal tar, and a sand tank 3 that stores sand, and is arranged in an imaginary straight line in the front and back direction at the lower end of one side of the main body 1, which is capable of moving forward. Along the line, there is a nozzle body 1 for spouting the mucus agent that is pumped from the mucus agent tank 2.
1, a discharge port 14 located behind the nozzle body 11 and discharging the sand sent from the sand tank 3;
The sand discharged from the rear of the discharge port 14 is
A brush body 16 that brushes and coats the ejected mucus agent.
A road paver consisting of a sequential arrangement of and.