JP4739124B2 - Elastic wheel stopper - Google Patents

Description

  The present invention relates to an elastic vehicle stop column that is used mainly outdoors on roadsides, parks, promenades, bicycle paths, and the like.

  Conventionally, a number of inventions have been made regarding the stop column that physically or psychologically prevents the vehicle from entering the sidewalk, and a cover is formed using a synthetic resin having elasticity around a strong core column. Various inventions have also been made to relieve the impact force when a vehicle or a pedestrian collides while ensuring the vehicle's stopping force.

  For example, in Patent Document 1, a rigid core column is inserted partway through the hollow portion of a hollow synthetic resin body having elasticity, and the exterior is held between the rigid core column and the exterior body at the lower portion of the hollow portion. The elastic body stop strut is formed by interposing the body so that the exterior body is integrally held by the rigid core column, the upper portion of the hollow portion is filled with foamed elastic material, and the lower portion of the rigid core column is provided with a fixing portion. It is disclosed.

JP 2000-282428 A

  However, in the elastic vehicle stop column as described in Patent Document 1, an exterior holding body formed using an elastomer such as elastic synthetic resin, synthetic rubber, polyurethane rubber or the like is formed in close contact with the entire outer peripheral surface of the core column. Therefore, when the exterior body or the exterior support body is damaged due to a vehicle collision or the like and needs to be replaced, the frictional resistance between the core column and the exterior support body when extracting from the core column is large, and the extraction work is very large. There was a problem of requiring labor.

  SUMMARY OF THE INVENTION Accordingly, the present invention is to provide an elastic vehicle stopper strut that can easily perform a production work at the time of new production and an exchange work at the time of breakage.

In order to achieve the above object, the present invention is configured as follows.
That is, the elastic bollard strut according to the present invention, the upper portion of the wick pillar is inserted into the lower hollow portion of the hollow strut body made of an elastic synthetic resin, the inner peripheral surface of the lower hollow portion, the inner peripheral surface The elastic lower end hollow part located in the lower part of the pillar main body into which the upper part of a core pillar is inserted is an elastic wheel stop pillar in which the protrusion which prevents contact with the outer peripheral surface of a core pillar is formed in the vertical direction The thickness of the column main body that forms the wall is formed thicker than the thickness of the upper portion of the hollow column main body positioned above it, and the protrusions are formed only on the inner peripheral surface of the lower end hollow portion. In addition, the upper portion of the core column and the column main body are fixed in the hollow portion at the lower end of the wall thickness .

  According to the present invention, the upper part of the core column is inserted into the lower end hollow portion of the column main body made of a synthetic resin having elasticity, and the inner peripheral surface of the lower end hollow portion is connected to the inner peripheral surface and the outer peripheral surface of the core column. Since the protrusions that prevent contact are formed in the vertical direction, the protrusions and the outer peripheral surface of the core column come into contact with each other, so the contact area between the outer peripheral surface of the core column and the inner peripheral surface of the lower end hollow portion of the column main body is reduced. Since the frictional resistance between the outer peripheral surface of the core column and the inner peripheral surface of the lower end hollow portion of the column main body can be reduced, the lower end of the column main body is placed above the core column at the time of new production. The hollow portion can be easily inserted, and the operation of removing the existing damaged column main body from the core column can be performed without requiring much labor.

Embodiments of the present invention will be specifically described below with reference to the drawings.
That is, FIG. 1 is a front view of a partial cutout showing an embodiment of an elastic wheel stopper post according to the present invention, FIG. 2 is a longitudinal sectional view of a core post shown in FIG. 1, and FIG. 3 (a) is a post shown in FIG. (B) is a plan view of (a), (c) is a bottom view of (a), FIG. 4 is a cross-sectional view of the lower part of the column main body shown in FIG. 3, and FIG. It is decomposition | disassembly explanatory drawing of the elastic wheel stopper support | pillar which concerns on invention.

  Reference numeral 1 denotes a cylindrical column main body formed using a synthetic resin having elasticity. 2 is a core column made of a circular steel pipe, 3 is a column head attached to the upper portion of the column body 1, and a lower end hollow portion 11 formed so that the core column 2 can be inserted from the lower end of the column body 1, An elastic wheel stopper P is formed by covering the core column 2 up to a predetermined length.

  A reflective sheet R1 having a predetermined width is adhered to the upper outer peripheral surface and the lower outer peripheral surface of the column main body 1, and the column head 3 is formed with a concave groove on the outer surface in a circumferential shape. A reflector R2 with a glass bead attached to a band-shaped metal or synthetic resin of a size suitable for the above is wound, and retroreflective by a light beam of a vehicle headlamp or the like is provided, so that visibility at night is improved. Improvements are being made.

  Further, the thickness of the column main body 1 forming the hollow lower end hollow portion 11 positioned at the lower part of the column main body 1 into which the core column 2 is inserted is formed thicker than the thickness of the column main body 1 above it. The impact when the vehicle or the like collides with the lower end hollow portion 11 in which the core column 3 having high hardness is inserted can be alleviated even a little.

  Further, eight protrusions 12 having a circular cross section in the longitudinal direction are formed at equal intervals on the inner peripheral surface of the lower end hollow portion 11. Further, the lower end hollow portion 11 is formed with two mounting holes 13 formed in the horizontal direction through the center thereof, and the core column 2 is also inserted into the lower end hollow portion 11 on the side surface of the core column 2. Sometimes, two through holes 21 are formed at positions corresponding to the mounting holes 13, and the fixing bolts B are inserted through the mounting holes 13 and the through holes 21 so as to be sewn to the nuts N. The core pillar 2 is fixed.

  Here, if the protrusion 12 protrudes inward from the inner peripheral surface of the lower end hollow portion 11 and prevents contact between the outer peripheral surface 22 of the core column 2 and the inner peripheral surface of the lower end hollow portion 11, The cross-sectional shape of the strip 12 is not particularly limited, and the number thereof is not limited. However, the cross-sectional shape of the ridge 12 is preferably an arc-shaped cross section that can reduce the contact area between the outer peripheral surface 22 of the core column 2 and the inner peripheral surface of the lower end hollow portion 11 as much as possible. In order to suppress backlash between the main body 1 and the core column 2, the number of the ridges 12 is required to be at least three or more, and it is preferable to provide them at equal intervals on the inner peripheral surface of the lower end hollow portion 11.

  In addition, when the diameter of a virtual circle that can be formed by connecting the tops of the plurality of protrusions 12 formed on the inner peripheral surface of the lower end hollow portion 11 is compared with the outer diameter of the core column 2, both are substantially the same, or It is desirable that the outer diameter of the core column 2 be slightly larger. By doing so, it is inserted so that the top of the ridge 12 slightly presses the outer peripheral surface 22 of the core column 2 without requiring a large force when the column body 1 is inserted through the core column 2. Worn. Conversely, if the outer diameter of the core column 2 is smaller than the diameter of a virtual circle that can be formed by connecting the tops of the ridges 12, it becomes very easy to extract the column main body 1 from the core column 2 while walking. When a person or the like shakes the column main body 1, it is not preferable because there is a backlash and noise is generated or the holding force of the column main body 1 to the core column 2 is almost lost.

  Here, the synthetic resin having elasticity used for forming the column main body 1 is not particularly limited as long as it has elasticity. Natural rubber, butadiene styrene rubber, neoprene, butadiene acrylonitrile rubber, chloroprene polymer, Elastic materials made of various synthetic rubbers and synthetic resins such as butyl rubber, ethylene propylene terpolymer, urethane resin, polyisobutylene resin, polyethylene resin, ethylene vinyl acetate copolymer, silicon resin, soft and hard vinyl chloride resin, elastomer, etc. A foam or the like may be appropriately used in consideration of molding conditions and the like. Further, recycled materials such as waste tires and factory waste materials and those obtained by processing them into chips may be used.

  Further, the core pillar 2 is not particularly limited, and if it is made of a strong material such as a metal such as steel, aluminum or stainless steel, concrete, or main stone, the force to physically prevent the vehicle from entering is large. It is preferable. Such a strong material generally has a high surface hardness, and if the pedestrian collides, the pedestrian may feel a pain or injury, but by inserting the column main body 1 into the core column 2, the pain is injured. And the effect of reducing the degree of injury can be increased. Further, the core column 2 may be erected on the road surface in a state where the column column 2 is inserted into the column main body 1, or the column column 1 may be covered with the core column 2 previously erected on the road surface.

  Then, when replacing the elastic wheel stopper strut P, whose strut body 1 is damaged, the strut body 1 damaged from the existing core pillar 2 around the road can be pulled out without requiring much pulling force. If the core column 2 is put on and fixed with the fixing bolt B and the nut N, the elastic wheel stopper column P that reuses the core column 2 can be formed.

  According to the elastic wheel stopper column according to the present invention, the upper portion of the core column is inserted into the lower end hollow portion of the column main body made of synthetic resin having elasticity, and the inner peripheral surface and the core column are inserted into the inner peripheral surface of the lower end hollow portion. Since the protrusion that prevents contact with the outer peripheral surface of the core column is formed in the vertical direction, the outer peripheral surface of the core column and the outer peripheral surface of the column main body and the inner peripheral surface of the lower end hollow portion of the column main body The area of contact with the core column can be reduced, so that the frictional resistance between the outer peripheral surface of the core column and the inner peripheral surface of the lower end hollow portion of the column main body can be reduced. It is easy to insert the lower end hollow part of the column main body into the column, and it is preferable to use it as an elastic vehicle stop column that can carry out the work of removing the existing damaged column main body from the core column without much labor. Can do.

It is a front view of the partial notch which shows one Embodiment of the elastic wheel stopper support | pillar which concerns on this invention. It is a longitudinal cross-sectional view of the core pillar shown in FIG. (A) is the front view of the partial notch of the support | pillar main body shown in FIG. 1, (b) is a top view of (a), (c) is a bottom view of (a). It is a cross-sectional view of the lower part of the support | pillar main body shown in FIG. It is decomposition | disassembly explanatory drawing of the elastic wheel stopper support | pillar which concerns on this invention.

Explanation of symbols

P elastic wheel stopper column 1 column body 11 lower end hollow portion 12 ridge 13 mounting hole 2 core column 21 through hole 22 outer peripheral surface 3 column head

Claims (1)

The top of the core posts are inserted in the lower hollow part of the hollow strut body made of an elastic synthetic resin, the inner peripheral surface of the lower hollow portion, preventing contact with the outer peripheral surface of the inner peripheral surface and the core pillars An elastic wheel stopper strut in which the protruding ridge is formed in the vertical direction, and the thickness of the column main body forming the hollow lower end hollow portion positioned at the lower portion of the column main body into which the upper portion of the core column is inserted is It is formed thicker than the thickness of the upper part of the hollow column main body located at the upper part, and the protrusion is formed only on the inner peripheral surface of the lower end hollow part, and the thicker lower end hollow part An elastic wheel stopper column, wherein the upper portion of the core column and the column main body are fixed .