KR20060107483A - A roller buffer of the median strip - Google Patents

Abstract

The present invention relates to a configuration of a central separator installed in the center of the road, the rotation is freely inserted into the shaft formed vertically between the upper and lower rails connecting between the support and the support, but the buffer roller The reinforcement is inserted and the outside of the buffer roller is wrapped with a rubber cover, characterized in that to improve the durability and cushioning effect.

Central separator, buffer roller, reinforcement, cover, foamed resin

Description

A roller buffer of the median strip

1 is a guard rail using a conventional buffer roller a) is a registered patent No. 573567, b) is a utility model registration No. 336612

Figure 2 is a front view of the roller type shock absorber of the present invention the central separator

3 is a side cross-sectional view of FIG. 2

Figure 4 is a plan cross-sectional view of the buffer roller of the present invention

※ Explanation of code for main part of drawing

1. Holding

2. Upper rail

3. Lower rail

4. Axis

5, 5 '. Buffer Roller

6. Axis

7. Reinforcement

8. Cover

9. Spacing area

The present invention relates to a roller-type central separator installed on the center line of the road, and more particularly, to install a buffer roller rotatably on the axis is fixed vertically between the upper and lower rails of the center separator and the durability and resilience of the buffer roller It is about making it possible to improve.

The central line of the road is equipped with various types of central dividers to prevent the central line invasion of the running vehicle and to prohibit unauthorized crossing of pedestrians.

Conventionally, the central separator is made of a concrete block and attached to the guard rail of the iron plate on both sides of the support, the center separator as described above had the effect of prohibiting the center line invasion of the vehicle or the pedestrian crossing of the pedestrian, If the vehicle inadvertently collides with the central partition, the crashed vehicle is thrown out due to the high rigidity of the central partition, causing a second traffic accident, causing the crashed vehicle to be severely damaged and the evacuation of the occupant.

On the other hand, there was a road facility using rollers, which was previously filed by the applicant of the Patent No. 573567 and Utility Model Registration No. 336612, but the above application is configured to be able to buffer the impact only in one direction for the guard rail, There was a problem in that the buffer roller injection-molded with urethane foamed resin had to be frequently replaced because the durability and the restoring force were easily damaged when colliding with the vehicle.

The present invention was developed to solve the above problems, the object of the present invention is to relieve the impact by the buffer roller when the vehicle collides with the central separator and to return to the lane without the vehicle being bounced off by the rotation of the buffer roller. It is done.

Another object of the present invention is to reinforce the buffer roller to improve durability and restoring force of the roller.

The present invention for the above-mentioned 'roller-type buffer device of the central separator' is inserted into the shaft provided vertically between the upper and lower rails of the central separator is injection molded into one or more buffer rollers and urethane foam resin that is freely rotated The buffer roller is composed of a reinforcement for inserting a thin steel plate around the shaft insertion hole in the center and a rubber cover covering the outside of the buffer roller of the urethane foam resin.

Hereinafter, with reference to the accompanying drawings for the preferred embodiment of the present invention will be described in detail the configuration and effect.

Figure 2 is a front view of the roller-type shock absorber of the present invention centrifugal separator, Figure 3 is a side view of Figure 2, Figure 4 is a plan sectional view of the present invention buffer roller.

As shown in the figure, in the present invention, the support post 1 is fixedly installed on the road surface at regular intervals along the center line of the road, and the upper and lower rails 2 and 3 are connected between the support post 1 and the support post 1. do.

The upper and lower rails 2 and 3 are provided with a shaft 4 vertically, and at least one buffer roller 5 is preferably provided on the shaft 4, preferably about three.

The buffer roller 5 installed on the shaft 4 is freely coupled to rotate about the shaft 4, and the buffer roller 5 is preferably made of a material having flexibility such as urethane foaming resin. It is easy to be damaged, such as partly falling off, and the compressive strength is low, so the shock absorption effect is insufficient. Therefore, the surface and the compressive strength need to be reinforced.

As a method of reinforcing the compressive strength of the buffer roller 5, the reinforcing member 7 is inserted into a circular shape around the shaft hole 6 accommodating the shaft 4, and molded by a method of integrating the urethane foaming resin.

As the material of the reinforcing material (7), it is preferable that the upper buffer roller (5) in which a large vehicle mainly collides is formed of a thin iron plate, and the lower buffer roller (5) in which a passenger vehicle mainly collides is a fabric of synthetic fiber material such as nylon yarn. Furnace reinforcement (7) can be formed to further increase the buffer effect.

In addition, in the present invention, by installing the buffer roller (5 ') on the outer periphery of the support (1) can increase the buffering effect due to the collision of the vehicle, the buffer roller (5') is installed on the support is thinner because the thickness of the roller reinforcement ( 7) may be omitted and only the cover 8 may be covered, and the gap between the rollers may be maintained between the buffer rollers 5 and 5 'and the buffer rollers 5 and 5' inserted into the support 1 and the shaft 4. In order to insert a cylindrical spacer (9).

In addition, the buffer roller (5) is formed of a urethane foaming resin, which not only shortens the life due to deterioration caused by ultraviolet rays when exposed to the sun for a long time, but also has a low surface strength so that it can easily fall off when colliding with the vehicle. The outside is formed to cover the ultraviolet (8) to increase the surface strength by forming a cover (8) of a rubber material of high tensile strength and flexible material.

Therefore, in the center separator according to the present invention, when the vehicle collides with the buffer roller 5 protruding to the left and right sides of the center separator, the vehicle is rotated in the traveling direction while absorbing the impact by the buffer roller 5, thereby turning the vehicle into a normal lane. The buffer roller 5 may have durability that is not easily damaged by the reinforcement 7 inserted therein without damaging the surface due to the cover 8 of the rubber material surrounding the surface.

As described above, the roller type shock absorber according to the present invention has the effect of guiding the vehicle to the lane by rotating in the traveling direction of the vehicle while the shock absorber absorbs the collision energy when the vehicle collides with the center separator. It is possible to minimize the damage of the vehicle while preventing secondary accidents, and to protect the surface of the buffer roller with a rubber cover to prevent the surface from being damaged or deteriorated by UV rays and to increase the shock absorption effect due to the internal reinforcement. Of course, various effects can be expected such as to improve durability.

Claims (4)

In the central separator installed on the center line of the road, One or more buffer rollers 5 can be freely rotated on the upper and lower rails 2 and 3 connecting between the support post 1 fixed to the road surface and the shaft 4 vertically connecting the upper and lower rails. Inserted, but the buffer roller is formed of foamed resin, the circular reinforcement member (7) is inserted around the shaft hole (6) and the outer roller type buffer device characterized in that the cover is covered with a rubber cover (8) . The roller type shock absorber according to claim 1, wherein the reinforcing material is a thin iron plate. 2. The roller type shock absorber according to claim 1, wherein the reinforcing material is a woven fabric made of synthetic fibers. The roller type shock absorber according to claim 1, wherein the buffer roller (5 ') is freely inserted into the outer periphery of the support (1).

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