JPH0637051Y2 - Elastic post for car stop - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] This invention is used for marking the separation line between the upper and lower roads or the boundary line between the road and the sidewalk, and for marking other vehicle stops such as parks, shrines, temples, and community roads. The present invention relates to the improvement of a bollard for a car stop.

[Conventional technology]

Stone columns, concrete columns, etc. are generally used as the conventional structure for partitioning.

Since they have a large rigidity, they are easily broken or damaged when subjected to a large impact such as a rear-end collision of a car, and there is a risk of scattering debris. Also has material defects that are harmful. In addition, even if a pedestrian hits the pedestrian, it is easily affected.

In addition, because the color definition is inferior in terms of material, it is difficult to obtain excellent marking effects, and it is difficult to obtain a harmonious color that is gentle with the environment of the installation site. It is impossible and expensive to get the color of.

Further, the concrete column has a drawback that it is easily polluted at an early stage and is inferior in aesthetic retention. Further, since the columnar body made of these materials has a high weight, it is difficult to handle at the time of installation.

[Problems to be solved by the invention]

It is necessary to eliminate the material defect due to the large rigidity of the above-mentioned conventional example by a structure having sufficient shape retention and cushioning.

In addition, it is a material that gives free and clear colors to the pillar material itself, not a paint-like feeling, and is a material that has excellent marking properties, and it is easy to obtain a soft and harmonious color with the environment of the installation site, Even in the above, it is necessary to have an excellent structure that can maintain the aesthetics for a long time.

In addition, it is necessary to prevent the risk of breakage or scatter easily due to a rear-end collision of an automobile or the like. Furthermore, it is to obtain a configuration that is relatively lightweight, easy to install on the ground, and easy to replace.

Therefore, an object of the present invention is to provide a light weight elastic post pillar for a car stop, which is excellent in shape retention and cushioning property, free in color and marking, and excellent in safety.

[Means for solving problems]

As a result of the search for achieving the above-mentioned object, the inventors have concluded that a columnar body composed of a combination of a shape-retaining inner column and a resilient outer column can be used as a substrate to solve all the conventional defects. is there.

That is, the car-stop column according to the present invention is a car-stop elastic column that is a combination of a shape-retaining inner column and an elastic outer column that covers the outer side of this inner column, and the shape-retaining inner column is A rigid plastic shape retainer with a low degree of foaming, a hollow shape retainer in which the lower part forms a plurality of notches in the axial direction from the upper end of the metal pipe to form a plurality of arc pieces, and a rigid shape retainer with a low degree of foaming. It is characterized by being composed of a composite with a plastic shape-retaining body.

As the shape-maintaining body of hard plastic having a low degree of foaming, for example, a low-foaming hard polyurethane resin can be adopted.

The elastic outer column is an elastic polymer material having particularly excellent weather resistance and aging resistance, and an elastomer having high toughness is suitable.
For example, EPT (ethylene / propylene / diene monomer terpolymer), polyurethane rubber and the like are used.
Further, if a thin film of plastic, for example, polyvinyl chloride, polypropylene, polyethylene or the like is integrally coated on the above elastomer, further water resistance and aging resistance can be obtained. The shape may be a round shape, a square shape, a polygonal shape, or the like, and may be various shapes as required.

In addition, since the above-mentioned elastomer not only obtains a free vivid color, but is colored by blending, it is possible to change the color and pattern such as formation of a marble pattern using various colors, and It is also possible to give a wider variety of marking properties such as dividing the elastic outer column into a head and a lower part to give a color change.

[Operation] Unlike the conventional stone pillars and concrete pillars, the above-mentioned elastic pillars for bollards are assembled from the inner shape-retaining pillars and the outer shape-retaining pillars. The body is made of only hard plastic with a low degree of foaming, and the lower part is a composite with a shape retention core made of metal pipe, while the shape retention is enhanced and the cushioning property is balanced in the axial direction from the upper end. Since it has a structure in which a plurality of cuts are formed to form a plurality of arc pieces, the upper part has a relatively high cushioning property, and the lower part has a relatively high shape retention property. After only the shape is deformed, it returns to the old shape, and the lower part has a good shape-retaining property, and the structure is such that breakage is unlikely to occur, and it has appropriate cushioning and shape-retaining properties as a standard pillar.

Further, the shape-retaining core body made of a metal pipe has a plurality of notches formed in the axial direction from the upper end portion, so that the shape-retaining core body is easily fitted to the elastic outer column and is hard to be removed.

In addition, the elastic outer column is made of elastomer with high toughness, and not only does it ensure a high degree of safety without the risk of being easily broken or scattered, but also for pedestrians. It has a function as. In addition, a vivid and colorful color as a standard pillar is obtained in terms of material, and there is no danger of it being easily peeled off by hitting, impact, mischief, etc. like paint, and it is easy to create an aesthetic standard pillar that matches the environment and color of the installation site. Can be obtained. Moreover, it is possible to maintain its aesthetics without being contaminated for a long period of time.

In addition, it is relatively lightweight as a whole and is easy to handle during installation.

〔Example〕

The drawings show an embodiment of an elastic post pillar for a car stop according to the present invention. A shape-retaining inner pillar 1 and an elastic outer pillar 2 made of an elastomer having a large toughness which covers the outer side of the inner pillar. It is composed of a combination.

The upper part of the shape-retaining inner pillar 1 is formed by a single part of the shape-maintaining body 1a made of hard plastic having a low degree of foaming, and the lower part is formed by forming a plurality of notches 3 in the axial direction from the upper end of the metal pipe. It is composed of a composite of a hollow shape retention core 1b having the arc piece 4 and a shape retention core 1a made of hard plastic having a low foaming degree. The shape-retaining core body 1b is preferably as short as possible from the viewpoint of weight saving and cost reduction, and in general, it is preferably about 1/2 of the total height of the pillar as shown in FIG.

As the shape retention core 1a of hard plastic with a low degree of foaming,
Using a polyurethane resin with a low degree of foaming, the elastic outer column 2
And the hollow shape retention core 1b are combined, and the inside thereof is filled and integrated to be formed. In this example, the shape-retaining inner column is formed in a solid state, but it may be formed in a hollow state in consideration of the degree of shape-retaining property. In this case, a hollow medium mold may be used to inject a polyurethane resin having a low degree of foaming.

Reference numeral 5 is a flange portion which is embedded and fixed in the ground 6, and 7 is a bolt hole for attaching an anchor bolt or the like which is used as necessary.

Although the most general circular shape is illustrated as the shape, it can be formed into any shape as desired.

Depending on the application, the appearance of the elastic outer column elastomer is to increase the wall thickness at locations where impact, contact, or other external force exerts a great deal of force, and to make it functionally protruding, or to improve the marking. Such as changing the shape or setting the fluorescent band,
It is formed appropriately.

In addition, a protective ring made of hard plastic or the like is provided along the outer side of the elastic outer column near the part to be buried in the ground and the lower part of the buried part, causing deformation in the bonding part of the buried fixing part with the fixed cement. Therefore, it is preferable to form a strong bonding portion between the protective ring and the cement, which is not deformed.

[Effect of device]

As described above, the elastic pole post for a car stop of the present invention has preferable shape retention and cushioning properties, is free from the risk of damage, breakage, and scattering like a stone material for a car stop, and is highly resistant to contact and collision of a car. It has a safety feature and has a good stopping effect over a long period of time. In addition, it is possible to adopt various color configurations, and it is possible to adopt a harmonious shape and color according to the state of the installation place. In addition, the elastic outer column is made of an elastomer with great weather resistance and toughness, has excellent resilience and prevents deformation and damage due to impact. It was.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of an elastic column for a car stop of the present invention, FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a perspective view of the shape-retaining core 1b. Is. 1 ... Shape-retaining inner column 1a ... Remaining shape-retaining body made of hard plastic with a low degree of foaming 1b ... Hollow shape-retaining body consisting of multiple arc pieces of metal 2 ... Resilient outer column 3 ... Notch 4 ... Arc piece, 5 ... Flange

Claims (1)

[Scope of utility model registration request] Claims: 1. An elastic column for a car stop, comprising a shape-retaining inner column and an elastic outer column made of a highly tough elastomer and covering the outer side of the inner column, wherein the shape-retaining inner column comprises: The upper part of the rigid plastic core with a low degree of foaming, the lower part of the hollow core with a plurality of notches formed in the axial direction from the upper end of the metal pipe to form a plurality of arc pieces, An elastic post for a car stop that is composed of a composite of a low rigid plastic shape retaining body.