JP2005097969A - Car stop post - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a car stop post capable of being formed with ease and effectively relaxing a shock by the collision of a pedestrian or a vehicle. <P>SOLUTION: The car stop post 10 is made so that the hardness of the head 2 and the bottom 3 is made harder than the body 1. In this way, when a vehicle, a bicycle, or the like collides therewith, the main body 1 always positioned in the middle deforms, the head 2 and the bottom 3 do not deform, and hence the fear of damage is reduced, the degree of freedom of the material forming the head 2 and the bottom 3 can be increased and the fear of breakage can be reduced even if a reflecting body or the like is added. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle stop column that is installed mainly at a boundary between a sidewalk and a road and prevents a vehicle or the like from entering the sidewalk from the road.

  Numerous inventions have been made with respect to the stop column that physically or psychologically prevents the vehicle from entering the sidewalk, and a cover is formed by using a synthetic resin having elasticity around a strong core column. Various inventions have also been made to alleviate the impact force when a vehicle or a pedestrian collides, while securing a stiffening force.

  Conventionally, a cover body is formed from a hard synthetic resin hard layer and a soft synthetic resin soft layer integrally formed on the outside of the hard layer, and the cover body is elastically formed with a layer in its radial direction. There is disclosed a vehicle entry prevention fence or the like equipped with a cushioning layer and a shock mitigating cover which is configured to relieve shock at the time of collision by synergistic action of the elastic cushion layer and the soft layer.

  In addition, by inserting a rigid core column in the middle of the hollow portion of the hollow synthetic resin body having elasticity, and interposing an exterior holder between the rigid core column and the exterior body at the lower portion of the hollow portion There is disclosed a wheel stopper elastic column in which an exterior body is integrally held by a rigid core column, a foamed elastic material is filled in an upper portion of a hollow portion, and a fixing portion is provided in a lower portion of the rigid core column.

Japanese Utility Model No. 57-127418 microfilm (Japanese Utility Model Publication No. 59-31768) JP 2000-282428 A

  However, the impact mitigating cover described in Patent Document 1 is premised on attachment to a vehicle entry prevention fence or the like, and needs to be attached so as to be fitted from the periphery of the tubular body. It was such a thing. Further, in order to form an elastic cushion layer that alleviates the impact of a collision, a complicated process is required to some extent with respect to the molding of the cover material.

  In addition, in the elastic column as described in Patent Document 2, the rigid core column is inserted to the middle of the hollow portion, and can be attached depending on the height of the existing core column to be attached. Alternatively, processing such as cutting the core column is required.

  The present invention has been made in view of the above-described problems, and is intended to provide a vehicle stop column that can effectively relieve an impact caused by a collision of a pedestrian or a vehicle and can be easily formed. .

  In order to solve the above problems, the present invention has the following configuration. That is, the wheel stopper column according to the present invention has a head and a bottom attached to both ends of a hollow cylindrical main body, the main body, the head and the bottom are made of synthetic resin, and the hardness of the synthetic resin forming the main body. Further, the synthetic resin forming the head and the bottom has a high hardness.

  Here, the hardness of the main body is a hardness that reduces the degree of feeling pain when a pedestrian or a bicycle comes into contact and is less likely to be injured. Specifically, a synthetic resin that expresses such hardness is JIS K7215. In the test based on Type A of (Durometer Hardness Test Method for Plastic), it is about 70 to 90, more preferably about 75 to 85. For the head and the bottom, a synthetic resin having a higher hardness than that of the main body may be used. However, if the hardness is too high, the risk of breakage increases. preferable.

  In addition, a core made of a synthetic resin having a hardness higher than that of the main body protrudes upward from the bottom, the core is inserted into a hollow portion of the main body, and a space is formed between the core and the main body. It is characterized by being provided.

  The core material is fixed to the upper surface of the bottom portion at the lower end portion.

  Further, the head and the bottom are provided with reflectors.

  According to the vehicle stop column according to the first aspect of the present invention, since the hardness of the head and the bottom is higher than that of the main body, the vehicle stop column is always positioned in the middle when the vehicle or the bicycle collides with the vehicle stop column. The main body is deformed and the head and bottom are not deformed, so the risk of breakage is reduced, the degree of freedom of the material forming the head and bottom can be increased, and there is a risk of breakage even if a reflector is added. Becomes smaller.

  According to the invention of claim 2, the core material is made of a synthetic resin having a hardness higher than that of the main body, so that the rigidity against the collision of the vehicle or the like is increased to secure the biting force of the vehicle or the like, and It is preferable to provide a space for the pedestrian or the like to maintain elasticity against contact with the pedestrian or the like, thereby reducing the risk of the pedestrian or the like feeling pain or injury.

  According to the invention of claim 3, the core material is fixed to the bottom portion at the lower end portion, and the space is provided between the core material and the main body, so that the main body and the core material bend due to a vehicle collision or the like. In this case, it is preferable that the main body and the core material can be separately deformed, and that each of them can be bent evenly, so that only a certain portion is bent and bent to prevent bending.

  Further, according to the invention of claim 4, by attaching the reflector to the head and the bottom, the upper end and the lower end of the vehicle stop column can be clearly seen, and the vehicle stop column has a dark color tone at night. However, it is easy to recognize the presence of the vehicle stop column, which is preferable.

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 an embodiment of a car stopper strut according to the present invention and showing the formation of the car stopper post. The main body 1 is formed by extrusion molding with a polyurethane-based elastomer and has a cylindrical shape with a hollow portion 11 inside. The head 2 formed by injection molding a polyurethane resin having higher hardness than the main body at both ends of the main body 1 and A bottom stop 3 is attached to form a stop column. The head portion 2 is provided with a cylindrical attachment portion 21 downward, the attachment portion 21 is inserted into the hollow portion 11, and the outer surface of the attachment portion 21 and the inner side surface of the main body 1 are fused to form a head portion. 2 is attached to the main body 1. In addition, a disc-shaped reflector R1 in which spherical glass beads are embedded in a synthetic resin molded body is fitted and attached to the head 2 in advance. The bottom portion 3 is integrally formed with a cylindrical mounting portion 31 and a reinforcing material 32 that reduces the degree of buckling in the vicinity of the lower end of the main body 1, and further extrudes a polyurethane resin having a higher hardness than the main body 1. The core member 4 formed in this manner is projected, and the bottom surface 3 is attached to the main body 1 by fusing the outer side surface of the attachment portion 31 and the inner side surface of the main body 1 in the same manner as the head portion 2. The outer diameter of the core material 4 is smaller than the inner diameter of the main body 1, and a belt-like reflector R <b> 2 in which spherical glass beads are embedded in a synthetic resin is fitted around the bottom portion 3 in a groove formed in the main body 3. The anchor bolts A are mounted in advance and are further projecting downwardly to the road surface.

  FIG. 2 is a cross-sectional view showing a central cross section of the formed vehicle stopper post. The core material 4 inserted into the hollow portion 11 of the main body 1 of the vehicle stopper column 10 has an outer diameter smaller than the inner diameter of the main body 1, so that the space between the periphery of the core material 4 and the main body 1 is between A space K is provided. Further, the lower end portion 42 of the core material 4 is inserted into the reinforcing member 32 of the bottom portion 3, and the lower end portion 42 and the upper surface of the bottom portion 3 are rotationally fused to form a fused portion Y. By providing the space K, when a pedestrian or a bicycle contacts the main body 1, the main body 1 having a low hardness can bend by the space K, and comes into contact with the car stopper column having a hardness of the core 4 level. Compared to cases, the risk of pain and injury felt by pedestrians and the like can be reduced. Further, the upper end 41 of the core member 4 has a height of 500 mm to 600 mm which is slightly higher than the height of the bumper of the automobile at the time of installation, and an impact to the automobile driver is given to the automobile driver if an impact is applied to the automobile core 4 when the automobile collides. The prevention effect is enhanced, which is preferable.

  The material forming the main body 1 is not limited to the polyurethane-based elastomer as long as the material has a lower hardness than the head 2 and the bottom 3, but durability is enhanced by bending and restoring due to a collision of a vehicle or the like. It is preferable to use a material having high flexibility, natural rubber, butadiene styrene rubber, neoprene, butadiene acrylonitrile rubber, chloroprene polymer, butyl rubber and other synthetic rubbers, polyurethane resin, polyisobutylene resin, ethylene vinyl acetate copolymer Synthetic resins such as silicone resins, olefin-based and urethane-based elastomers can be suitably used, and these are preferably molded without foaming to prevent tearing from the gaps. Moreover, in the above-mentioned hardness of about 70 to 90, it is preferable that the thickness of the main body 1 is about 2 mm to 6 mm in order to ensure sufficient deflection against a vehicle collision or a pedestrian contact.

  The material forming the head 2, the bottom 3 and the core 4 is not limited to polyurethane resin as long as it is harder than the main body 1, but it may be struck against the road surface by a vehicle collision or impact, The above-mentioned hardness of about 95 to 100 is preferable, and polymerization is performed with the materials mentioned in the main body 1 because the hardness is too high and the durability is easily deteriorated. It is possible to use a resin whose hardness is increased by increasing the degree, or a synthetic resin such as polyethylene resin having a certain degree of elasticity, soft or hard vinyl chloride resin. In order to attach the head portion 2 and the bottom portion 3 to the main body 1, it is preferable that the rotational fusion can obtain a uniform and strong fixing force without making the fusion portion conspicuous, but is particularly limited to the rotational fusion. It is also possible to perform fastening using other heat fusion, bonding, rivets or the like. When performing rotational fusion, it is preferable that the main body 1, the head 2, and the bottom 3 are made of compatible materials in order to increase the fixing force. In order to fix the lower end portion 42 of the core member 4 and the upper surface of the bottom portion 3, rotational fusion is preferable in terms of increasing the fixing force, but is not limited to rotational fusion, and other thermal fusion or adhesion is possible. Fastening means or the like may be used.

  FIG. 3 shows a state in which the vehicle collides against the vehicle stop column 10. First, a) is a cross-sectional view showing a state before the collision of the vehicle C. In (b), if marks H1 and H2 are attached to the same height for the main body 1 and the core material 4, respectively. In the cross-sectional view at the time of the collision shown, the main body 1 is bent by the bumper CB of the vehicle C, but the main body 1 and the core material 4 are deformed here, and the head 2 and the bottom 3 which are harder than the main body 1 are deformed. There is nothing to do. Further, since the core material 4 can bend freely in the main body 1, the positions of the mark H1 and the mark H2 are shifted. The main body 1 and the core material 4 are fixed to the bottom portion 3 at the lower ends, and since the degree of buckling near the lower ends is made small by the reinforcing material 32, the whole body 1 and the core material 4 can be bent uniformly, and only a certain portion is bent and the main body 1 and The core material 4 is prevented from being bent and wrinkled.

  The vehicle stop column 10 is installed in the vicinity of the boundary with the roadway R on the sidewalk H as shown in FIG. The anchoring strut 10 is fixed on the sidewalk H by anchoring the anchor bolt A projecting from the lower surface of the anchoring strut 10 to the anchor nut B embedded in the sidewalk H in advance. In addition to the reflectors R1 and R2, the vehicle stop column 10 has a reflective sheet R3 attached to the main body 1 to further improve visibility at night. By installing such a stop column 10 in the vicinity of the boundary with the roadway R on the sidewalk H, it is possible to psychologically prevent the vehicle driver from entering the sidewalk, and for the unavoidable circumstances, the vehicle is When riding on the vehicle, the degree of damage to the vehicle can be made much smaller than that made of metal.

An example of a modification of the vehicle stop strut according to the present invention will be specifically described below.
FIG. 5 is an explanatory view showing the formation of the vehicle stop column. The bottom portion 3 is the same as that shown in FIG. 1, but an attachment portion 21 and a reinforcing member 22 similar to the bottom portion 3 are integrally formed above the head portion 2, and a core member 4A is further provided. . Further, an aluminum mounting tube 23 projects from the lower end of the head 2. The main body 1 is 3 to 5 times as long as the core materials 4A and 4B. For example, if the core materials 4A and 4B are 70 cm, the main body is 2 to 4 m long. The head 2 and the bottom 3 are inserted into the hollow part 11 of the main body 1 from the cores 4A and 4B, and the inner surface of the main body 1 and the outer surface of the mounting part 21 of the head 2 and the mounting part 31 of the bottom part are rotationally fused. The head 2 and the bottom 3 are fixed and attached to both side ends of the main body.

  The formed vehicle stop column 10 is installed on the sidewalk H as shown in FIG. The bottom 3 is screwed and fixed to an anchor nut B embedded in the sidewalk H by an anchor bolt A, while the head 2 is attached to the side pipe H by a mounting pipe 23 inserted in a sheath pipe S embedded in the sidewalk H. Fixed. Here, by the cores 4A and 4B projecting above the head 2 and the bottom 3, the main body 1 is upright near both ends, and the cores 4A and 4B are in contact with the inner surface of the main body 1 and bent. Thus, the car stopper post 10 is installed on the sidewalk H in a gate shape. With such a car stopper column 10, the cross beam portion is flexible and can prevent entry without feeling so much pain when touching a pedestrian or bicycle. In addition, even when an automobile collides due to unavoidable circumstances, it is possible to prevent the entire car stopper column 10 from being bent so that the automobile is damaged and the driver is injured compared to a metal one.

It is explanatory drawing which shows the state of formation in one Embodiment of the vehicle stop pillar concerning this invention. It is sectional drawing which shows the center cross section of the vehicle stop pillar shown in FIG. It is sectional drawing which shows the state at the time of the vehicle collision of the vehicle stop support | pillar shown in FIG. It is explanatory drawing which shows the installation state of the vehicle stop support | pillar concerning this invention. It is explanatory drawing which shows the state of formation in an example of a deformation | transformation of the vehicle stop pillar concerning this invention. It is sectional drawing which shows the installation state of the vehicle stop pillar of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 11 Hollow part 2 Head part 3 Bottom part 32 Reinforcement material 4 Core material 10 Car stop strut R1, R2 Reflector K Space

Claims (4)

A head and a bottom are attached to both ends of a hollow cylindrical main body, and the main body, the head and the bottom are made of a synthetic resin, and the head and the bottom are formed by the hardness of the synthetic resin forming the main body. A car stopper prop characterized by the hardness of the synthetic resin being made high. The bottom part has a core material made of a synthetic resin harder than the main body protruding upward, the core material is inserted into a hollow part of the main body, and a space is provided between the core material and the main body. The vehicle stop column according to claim 1, wherein the vehicle stop column is formed. 3. The vehicle stop strut according to claim 2, wherein the core member is fixed to the upper surface of the bottom portion at the lower end portion. 4. The vehicle stop strut according to claim 1, wherein a reflector is attached to the head and the bottom.

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