JP3497657B2 - Brace elastic struts - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car stop elastic support column which is mainly installed outdoors such as at a boundary between a sidewalk and a roadway.

[0002]

2. Description of the Related Art Conventionally, as a car stop column having a cushioning property, for example, as disclosed in Japanese Utility Model Laid-Open No. 14217/1991, a metal coil spring is arranged in a circular hollow portion of a standard column, and an outer shell is made of an elastomer. Embedded in the hollow exterior part, the bottom part of the coil spring is fixed to the rigid bottom plate, a cushioning pillar part is formed on the rigid bottom plate, and a fixed pillar part for the road is provided on the lower surface of the rigid bottom plate. Proposed.

[0003]

However, the above-mentioned vehicle-supporting column has a high manufacturing cost because the column is integrally molded so that the coil spring is embedded and integrated in the inner wall of the column. However, there is a problem in that material loss is large in the case of occurrence. Also, when manufacturing columns of various designs, it is inconvenient because the entire column must be molded from scratch. Further, since the coil spring is embedded and integrated in the inner wall of the pillar, there is a drawback that the pillar does not bend unless a considerably large external force is applied and the cushioning effect is not sufficiently exerted. Further, since the coil spring is made of metal, it has a drawback that it is easily rusted.

An object of the present invention is to provide an elastic column for a vehicle stop that solves the above-mentioned conventional problems.

[0005]

According to a first aspect of the present invention, there is provided a car stop elastic support column, wherein a hollow synthetic resin support column is covered on a hollow synthetic resin elastic core column whose base is buried in the ground. The hollow part is filled with elastic foam material ,
Since the elastic core column is not integrated with the column, the manufacturing is easy, and the material loss is small even when a defective product is produced during the manufacturing. Also, when manufacturing elastic columns of various designs, various designs can be obtained by molding the columns in various ways. In addition, there is no concern about rust, and the members are less likely to scatter even in the unlikely event of damage, which does not harm pedestrians.

According to claim 2 of the present invention, a plurality of ridges are formed over the entire circumference in the longitudinal direction of the outer wall of the stanchion, and concave grooves are formed in the inner wall of the back struts at positions corresponding to the ridges. The struts are used, and the section pressure of the stanchion sidewalls is increased while the flesh pressure of the stanchions is made substantially uniform.
Even when the pillar receives a large stress, it is difficult to buckle, and even if the pillar bends, it is easily restored when the stress is removed.

According to a third aspect of the present invention, there is provided a vehicle stop elastic column having a reflector attached to a side wall near the top of the column.
The reflector reflects the light emitted from the headlights of a night vehicle to improve visibility.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. FIG. 1 is a partially cutaway front view showing an example of an embodiment of the present invention.

Reference numeral 1 denotes an elastic core column, the upper part of which is projected to the ground and embedded in the ground, and a lid is formed at the upper end thereof. The elastic core column 1 is made of a hard synthetic resin tube having an appropriate sectional shape such as a circular sectional shape, but a glass fiber reinforced polyethylene tube having high flexibility and being difficult to bend is preferably used.

The column 2 is covered with the elastic core column 1 and stands upright on the ground, and the inside thereof is filled with the elastic foam material 3.
When an impact force due to a vehicle collision is applied to the support column 2, the elastic foam material 3 absorbs the impact and stress concentrates on the support column 2 to support the support column 2.
Can be prevented from being damaged, and the stress can be gently transmitted to the elastic core column 1 to absorb the shock by the entire wheel-stop elastic support column. Further, since the column 2 is filled with the elastic foam material 3 even when it receives a large stress, it is hard to buckle and is easily restored when the stress is removed even if it bends.

The pillar 2 has an appropriate sectional shape such as a circular cross section, and is made by rotation molding or the like using a soft or semi-hard synthetic resin, and the head is generally designed to have various shapes. If a plurality of ridges 23 are formed on the outer wall of the strut 2 over the entire circumference and a groove 24 is formed in the inner wall of the back side strut at a position corresponding to the ridge 23, not only is it preferable for the scenery. While the wall pressure of the support pillar is made substantially uniform, the section modulus of the side wall of the support pillar 2 is increased, and the restoring force after stress removal is further improved even if the support pillar 2 is difficult to buckle and bends even when a large stress is applied, Made to be preferred. If a circular groove 21 is formed on the head of the pillar 2, it will be excellent in terms of scenery, and if a reflector 22 is attached in the vicinity of the groove 21, visibility at night will be enhanced. It has a different design and is more preferable. As the elastic foam material 3, a foam synthetic resin having an expansion ratio is appropriately used, but it is preferable to use a urethane foam resin in consideration of durability and the like. The reflector 22 is manufactured by appropriately arranging a number of reflective beads such as glass beads on a circular plate.
The reflective beads are appropriately colored red or the like to enhance the visibility of the reflected light.

[0012]

According to the present invention, a hollow synthetic resin support column is covered on a hollow synthetic resin core column whose base is buried in the ground, and the hollow part of the support column is filled with an elastic foam material. The elastic core column is integrated with the column.
Are those without, without the core column will bend because flexibility of the core posts are made higher when the elastic struts undergoing large stress, the elastic foam material is filled also hollow strut Even if it is difficult to buckle and bends, it is easily restored when the stress is removed. Further, since the elastic body such as the metal coil spring is not integrated with the support, insert molding or the like is not required, the manufacturing is easy, and the material loss is small even when a defective product is produced during the manufacturing. Further, in the case of manufacturing columns of various designs, various designs can be obtained by molding various types of hollow columns even if the number of elastic core columns is small. Further, since no metal coil springs or metal core columns are used, there is no risk of rusting, and the members are less likely to scatter even in the unlikely event of damage, and pedestrians are not harmed.

According to a second aspect of the present invention, there is formed a plurality of ridges in the longitudinal direction of the outer wall of the stanchion over the entire circumference thereof, and a groove is formed in the inner wall of the rear stanchion at a position corresponding to the ridge. The struts are used, and the section pressure of the stanchion sidewalls is increased while the flesh pressure of the stanchions is made substantially uniform.
Even when the pillar receives a large stress, it does not easily buckle and bends, but it easily recovers when the stress is removed, so it does not easily deform even if a vehicle or the like collides, and it is suitable for a long period of time. It

According to a third aspect of the present invention, there is provided a car stop elastic column having a reflector attached to a side wall near the top of the column.
The reflector reflects the light emitted from the headlights and the like of the night vehicle to improve the visibility, and it is easy for the driver of the vehicle to easily confirm the elastic brace for the car stop and prevent the vehicle from colliding with the vehicle.

[Brief description of drawings]

FIG. 1 is a front view showing an example of an embodiment of an elastic strut for vehicle stopping according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

1 Elastic core 2 props 21 groove 22 reflective tape 23 convex stripes 24 groove 3 Elastic foam

Claims (3)

(57) [Claims] What is claimed is: 1. The base has a hollow synthetic resin struts are placed over the plastic elastic core pillars hollow embedded in the ground, the elastic foam material is filled in a hollow portion formed in the supports so
There is provided a car stop elastic column , wherein the elastic core column is not integrated with the column. 2. A strut having a plurality of ridges formed over the entire circumference in the longitudinal direction of the outer wall of the strut, and a strut having a groove formed on the inner wall of the back strut at a position corresponding to the ridge is used. The elastic stanchion for a car stop according to claim 1. 3. The vehicle stop elastic column according to claim 1, wherein a reflector is attached to a side wall near the top of the column.