JP4767826B2 - Elastic wheel stopper and method of forming elastic wheel stopper - Google Patents

Description

  The present invention relates to an elastic wheel stopper in which a hard core column is covered with a cover material having elasticity, and an elastic wheel stopper forming method.

  As an elastic wheel stopper in which a cover material having elasticity is covered on a hard core pillar, for example, a rigid core pillar is inserted halfway through the hollow portion of a hollow synthetic resin body having elasticity, and at the lower part of the hollow portion An exterior body holding body is interposed between the rigid core pillar and the exterior body so that the exterior body is integrally held by the rigid core pillar, and a foamed elastic material is filled in the upper portion of the hollow portion. There is disclosed a wheel stopper elastic column in which a fixed portion is provided at the lower part of the door (for example, Patent Document 1).

  In addition, a pillar that is erected with the lower part embedded under the ground, a core layer that is crowned by the exposed part of the pillar and absorbs an external impact, and an outer surface of the core layer A car stop pillar structure having a covering skin, wherein the core layer is formed separately from the skin by heat molding of a chip material obtained by pulverizing rubber or plastic waste material. A vehicle stopper columnar structure in which a layer, an outer skin, and a support are assembled and fixed integrally is disclosed (for example, Patent Document 2).

JP 2000-282428 A JP 2003-96729 A

  However, in the conventional elastic wheel stopper as described in Patent Document 1, it is necessary to fill the foamed elastic material between the rigid core column and the exterior body, and the work related to the formation becomes complicated, and it is quick at the installation site. Formation was difficult.

  Moreover, in the conventional elastic wheel stopper as described in Patent Document 2, the core layer is formed by pulverizing rubber or plastic waste material and heat-molding, and it can cope with those having different outer shapes of the core column. It is difficult to cover the core column with the core layer, and there is a possibility that the gap may be excessively opened when the core layer is covered.

  The present invention has been made in view of the above problems, and does not provide an elastic wheel stop and a method for forming an elastic wheel stop that can be easily handled even if the core column has various outer shapes. It is what.

In order to achieve the above object, the present invention is configured as follows. That is, the elastic bollard according to the present invention, the steel core columns, the outer skin having elasticity is provided on the outside of the core columns, the buffer layer and is provided made of an elastic body between the core columns and the outer skin, wherein The core column is provided with a cap having an outer diameter larger than the outer diameter of the core column main body at the upper end of the core column main body, a step portion is formed at a boundary portion between the core column main body and the cap, and the buffer layer is A belt-shaped elastic body is formed by winding around a core column body, and the outer skin is formed in a cylindrical shape. The core column is inserted into the cylindrical hollow portion, and a tip is inserted into the hollow portion. When a latching member having a hooking portion formed upward is attached, and when an external force is applied to the outer skin, the hooking portion is attached to a boundary portion between the core column main body and the cap. stuck to the formed stepped portions are prevented from skin comes off from the core pillar And it is characterized in and.

According to the elastic wheel stopper according to the present invention, a belt-like elastic body is wound around the core column to form a buffer layer on the core column, and the outer layer is covered on the buffer layer, thereby enabling easy formation. However, it is possible to easily set the thickness of the buffer layer by providing a single layer or a plurality of layers of the belt-like elastic body, and it is possible to easily cope with the core pillar having various outer shapes.

The elastic wheel stopper forming method according to the present invention includes a steel core column, an outer skin provided on the outer side of the core column and having elasticity, and a buffer layer made of an elastic body between the core column and the outer skin, The core column is provided with a cap having an outer diameter larger than the outer diameter of the core column main body at the upper end of the core column main body, and a step portion is formed at a boundary portion between the core column main body and the cap. A belt-like elastic body is wound around the core pillar body to form the core pillar body, and the outer skin is formed in a cylindrical shape, and the core pillar in which the buffer layer is formed is inserted into the cylindrical hollow portion. In addition, a locking member formed with an engaging claw portion with the tip facing upward is attached in the hollow portion, and when the external force is applied to the outer skin, the engaging claw portion is attached to the core column body. Prevents the outer skin from coming off the core pillar by being caught on the step formed at the boundary between the cap and the cap. It is characterized in that it has to be.

According to the method for forming an elastic wheel stopper according to the present invention, a band-shaped elastic body is wound around a core column to form a buffer layer on the core column, and the outer layer is covered on the buffer layer. However, it is possible to easily set the thickness of the buffer layer by providing a single layer or a plurality of layers of the belt-like elastic body, and it is possible to easily cope with various shapes of the core column.

According to the elastic wheel stopper according to the present invention, a belt-like elastic body is wound around the core column to form a buffer layer on the core column, and the outer layer is covered on the buffer layer, thereby enabling easy formation. However, it is possible to easily set the thickness of the buffer layer by providing a single layer or a plurality of layers of the belt-like elastic body, and it is possible to easily cope with the core pillar having various outer shapes.

  Further, according to the elastic wheel stopper forming method according to the present invention, a belt-like elastic body is wound around the core column to form a buffer layer at least near the lower end of the core column, and the outer layer is covered on the buffer layer. However, it is possible to easily set the thickness of the buffer layer by providing a single layer or a plurality of layers of the belt-like elastic body, and it can be easily handled even if the core column has various outer shapes. be able to.

  BEST MODE FOR CARRYING OUT THE INVENTION The best embodiment according to the present invention will be specifically described below with reference to the drawings.

  FIG. 1 is an explanatory view showing one embodiment of a method for forming an elastic wheel stopper according to the present invention. First, the core pillar 3 is a pillar such as a steel guard rail, and a steel cap 32 is fixed to the upper end of the core pillar body 31 by welding. An elastic wheel stopper is formed by covering the core column 3 with a cylindrical outer shell 2 made of polyurethane resin and having a hollow portion 21, but the outer diameter of the core column 3 is larger than the inner diameter of the hollow portion 21 of the outer shell 2. The inner diameter of the hollow portion 21 needs to be large to some extent with a margin. For example, when the hollow portion 21 is formed in accordance with the outer shape of the cap 32, the cap 32 In the portion of the core pillar body 31 having a small outer diameter, a gap may be opened between the outer skin 2 and the core pillar 3, which may cause rattling or the like.

  Therefore, the buffer layer 1 is formed in the vicinity of the lower end of the core column 2 by winding the belt-shaped elastic body 4 on the core column 3. The belt-like elastic body 4 is made of a foamed material of chloroprene rubber, and an adhesive layer provided in advance on one surface of the belt-like elastic body 4 is exposed while peeling the release paper, and is adhered to the core column 2. It is made like that. The buffer layer 1 may be appropriately wound in accordance with the gap generated between the outer skin 2 and the core pillar 3. For example, when the gap is small, even if the belt-like elastic body 4 is wound around the core pillar body 31 by a single layer. If the gap is large, a plurality of layers of the elastic body 4 may be wound to increase the thickness of the buffer layer 1 so that the gap can be substantially filled.

  2A and 2B show an embodiment of an elastic wheel stopper according to the present invention, in which FIG. 2A is a front view and FIG. 2B is a longitudinal sectional view. First, in (a), the elastic wheel stopper 10 formed by the method shown in FIG. 1 is formed by covering the entire core pillar (not shown in the figure) with the outer skin 2 over the entire periphery. Only the upper outer skin 2 is visually recognized. The elastic wheel stopper 10 in the present embodiment is used as a road sign pillar standing from the road to guide the line of sight of the driver of the vehicle and the like. Sheet R is adhered.

  Next, in (b), the metal core pillar 3 is provided inside the outer skin 2. Since the outer diameter of the cap 32 is larger than the outer diameter of the core column main body 31, a stepped portion 33 is generated at the boundary portion between the core column main body 31 and the cap 32 on the outer surface of the core column 3. On the other hand, the outer skin 2 is such that the upper end of the outer skin main body 22 provided with the hollow portion 21 is closed by fixing a lid 23 formed thicker than the outer skin main body 22. A space K is formed between the column 2 and the outer surface. A locking member 24 made of spring steel extends downward from the lid body 23 on the inner side of the cylindrical body 11, and the distal end of the locking member 24 is bent inward and upward to engage the hook. Part 25. Even when an upward external force is applied to the outer skin 2 by the engaging claws 25, it is possible to prevent the outer skin 2 from coming off the core column 3 by the engaging claws 25 being caught by the stepped portion 33. Further, if the outer skin 2 is pushed in from above, the locking member 24 can be easily attached.

  In the interval K, the buffer layer 1 is provided by winding the belt-shaped elastic body 4 other than the portion where the cap 32, the locking member 24, and the like are provided. By providing the buffer layer 1 in the vicinity of the lower end, the resistance received when the outer skin 2 is covered can be reduced, and the lower end portion of the outer skin 2 can be prevented from shaking to prevent deterioration from the lower end. In the case where the interval K is large, the thickness may be increased by providing a plurality of layers of the belt-like elastic body 4 in layers. Since both the buffer layer 1 and the outer skin 2 are formed of an elastic body, it is possible to cover the outer skin 2 on the buffer layer 1 even if it is somewhat cramped. Further, the upper and lower ends of the outer skin 2 are fixed by the locking member 24 and the engaging claws 25 near the upper end of the outer skin 2 and the buffer layer 1 near the lower end of the outer skin 2, and the attachment state of the outer skin 2 to the core column 3 is stable. It has been.

  The belt-like elastic body 4 forming the buffer layer 1 can be formed using an appropriate material as long as it is an elastic body, but is formed using rubber or a synthetic resin that can be easily formed into a belt shape. For example, natural rubber, butadiene styrene rubber, neoprene, butadiene acrylonitrile rubber, chloroprene polymer, butyl rubber, ethylene propylene terpolymer, urethane resin, polyisobutylene resin, polyethylene resin, ethylene vinyl acetate copolymer, silicone resin, soft resin Elastic materials made of various synthetic rubbers and synthetic resins such as vinyl chloride resin, styrene-butadiene, polyolefin, polyester, polyvinyl chloride, polyurethane and polyamide elastomers can be suitably used. You may use what made them foam. By foaming, the elastic body can be made flexible, and the outer surface can be made rough to increase the frictional force with the inner surface of the outer skin 2 so that the outer skin 2 can be more easily removed.

  As for the size of the belt-like elastic body 4, the width is preferably about 20 to 150 mm and the thickness is preferably about 1 to 5 mm in consideration of workability. An appropriate size may be used according to the size of the diameter and interval K.

  FIG. 3 is a perspective view showing another example of the formation of the buffer layer of the elastic wheel stopper according to the present invention. The buffer layer 1 is formed by spirally winding the belt-shaped elastic body 4 around the outer surface of the core column 3. By winding the strip-like elastic body 4 in a spiral shape, the work of forming the buffer layer 1 over a wide range on the outer surface of the core column 3 can be easily performed, and a plurality of buffer layers 1 are provided. Is also made easier.

It is explanatory drawing which shows one Embodiment of the formation method of the elastic wheel stopper concerning this invention. It is explanatory drawing which shows one Embodiment of the elastic wheel stopper concerning this invention. It is a perspective view which shows the other example of formation of the buffer layer of the elastic wheel stopper concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Buffer layer 2 Outer skin 3 Core pillar 4 Band-shaped elastic body 10 Elastic wheel stopper

Claims (2)

A steel core pillar, an outer skin provided on the outer side of the core pillar and having elasticity, and a buffer layer made of an elastic body between the core pillar and the outer skin, are provided, and the core pillar is formed at the upper end of the core pillar body. A cap having an outer diameter larger than the outer diameter of the core column main body is provided, a stepped portion is formed at a boundary portion between the core column main body and the cap, and the buffer layer has a belt-like elastic body wound around the core column main body. Further, the outer skin is formed in a cylindrical shape, and the core column is inserted into the cylindrical hollow portion, and an engaging claw portion is formed in the hollow portion with the tip facing upward. When the engaging member is attached and an external force is applied to the outer skin, the engaging claw portion is caught by the step portion formed at the boundary portion between the core column main body and the cap. An elastic wheel stopper characterized in that it is prevented from coming off the core pillar . A steel core column, an outer skin provided on the outer side of the core column and having elasticity, and a buffer layer made of an elastic body between the core column and the outer shell, the core column at the upper end of the core column body; A cap having an outer diameter larger than the outer diameter of the column main body is provided, a step portion is formed at a boundary portion between the core column main body and the cap, and the buffer layer is formed by winding a belt-shaped elastic body around the core column main body. The core column body is formed, and the outer skin is formed in a cylindrical shape, and the core column in which the buffer layer is formed is inserted into the cylindrical hollow portion, and the tip is directed upward in the hollow portion. When the engaging material that forms the engaging claws is attached, and the external force is applied to the outer skin, the engaging claws are stepped portions formed at the boundary between the core pillar body and the cap. to stuck, skin is characterized in that so as to prevent the escape from the core pillar elastic bollard Forming method.

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