JPH08218328A - Collision cushioning body for car - Google Patents

Abstract

PURPOSE: To improve visibility at night of a collision cushioning body for a car being installed at the end section of the medial strip of a road, a crossroad, etc., and relaxing a shock in a car crash accident. CONSTITUTION: A cushioning-body main body 1, a light-emitting means 2 fitted onto the outer side face of the cushioning-body main body 1 along the circumferential direction and emitted linearly and a light source means 3 guiding light to the light-emitting means 2 and emitting or flickering the light-emitting means 2 are provided. Visibility is improved even during the nighttime, etc., by the light-emitting means 2 mounted onto the outer side face of the cushioning-body main body 1 and linearly emitted or flickered, and the visibility is not deteriorated even to a curving and travelling car, etc., and even to a car coming from any direction except the front because the light-emitting means 2 is installed onto the outer side face of the cushioning-body main body 1 along the circumferential direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle shock absorber, which is installed at an end of a median strip of a road, a branching point, or the like to reduce a shock in a vehicle collision accident.

[0002]

2. Description of the Related Art Conventionally, a vehicle shock absorber is one in which a hollow body is filled with a cushioning material such as a sand bag or a water bag as described in Japanese Utility Model Publication No. 59-30010.
It is installed at the end of the median strip of the road or at the junction, etc., and it is for alleviating the impact in the event of a vehicle collision. However, since this vehicle collision buffer is inferior in visibility at night, during snowfall, during heavy fog, etc., the outer surface of the buffer will be retro-reflective, such as a reflective sheet that shines brightly when reflected by the vehicle headlights. The material is generally attached.

[0003]

However, even if the retroreflective material is attached, the reflective material is well reflected by the light incident from the front side and is clearly visible, but the curve is particularly visible. For a vehicle that is traveling in such a way, the light of the headlight is incident on the reflector from an oblique direction, so it may not be reflected well and it may still be difficult for the driver to see, so it is not an effective solution. It was

Therefore, the present invention solves the above problems,
In particular, the present invention is intended to provide a collision buffer for a vehicle with improved visibility at night and the like.

[0005]

In order to achieve the above object, the present invention has the following constitution. That is, the vehicle collision buffer according to the present invention includes a buffer body, a light emitting means that is attached to the outer surface of the buffer body along the circumferential direction and emits linear light, and guides the light to the light emitting means. And light source means for emitting or blinking the light emitting means.

The type of the light emitting means is not particularly limited as long as it emits light linearly by emitting the light guided from the light source means. It is preferably composed of a long tubular light-emitting body which is housed in a flexible tube and has a core having a higher refractive index than the flexible tube. Compared with other LED and other light emitters, this tube-shaped light emitter does not require electrical wiring, so it has excellent water resistance, is easy to maintain, and has a light emitting surface that does not emit light from the outer peripheral surface. The light incident on one end of the core from the light source means is reflected by the boundary surface between the flexible tube and the core, and by repeating this reflection, part of the light is emitted from the outer peripheral surface while being transmitted to the other end of the core. As a result, the tube-shaped light-emitting body can be made to emit light in a uniform linear shape, and the tube-shaped light-emitting body can be made thicker (outer diameter of about 5 to 20 mm) than the optical fiber, so that a large amount of light can be made incident. Thus, the amount of light emitted from the outer peripheral surface can be increased, and the emission brightness can be increased. Furthermore, since this tubular light-emitting body can be easily bent along the circumferential direction of the outer surface of the buffer body, it is easy to install, and due to its flexibility, it is less likely to be damaged even if the vehicle comes into contact with it. The emission color can be changed by using a color filter.

It is preferable that the flexible tube is made of a translucent material so that the incident light is emitted from the outer peripheral surface, since the light is emitted from the entire outer peripheral surface. However, the flexible tube is made of a light shielding material. , Partially forming a light leak part,
Alternatively, the outer peripheral surface of the flexible tube made of a light-transmitting material is covered with a light-shielding material, and the light-shielding material is partially cut out to form a light leakage portion so that the light is emitted in a dot line shape. Alternatively, a part of the flexible tube made of a translucent material may be covered with a light-shielding material along the longitudinal direction so that light is not emitted from the entire outer peripheral surface and is emitted only to the side facing the driver or the like. It may be done.

Although the boundary surface where the core and the flexible tube are in contact with each other, that is, the inner wall surface of the flexible tube may be smooth, if fine irregularities are formed, the incident light is irregular due to the fine irregularities. This is preferable because a large amount of light is reflected and emitted from the outer peripheral surface.

The material forming the flexible tube is not particularly limited as long as it is flexible and can be formed into a tube shape and has a low refractive index, but in general, Synthetic resins such as polyethylene, polypropylene, polyvinyl chloride, polyamide, polystyrene-butadiene copolymer, butyl rubber, EPDM, acrylonitrile-butadiene copolymer, fluororubber, silicone rubber, etc. are used, and silicone having a particularly low refractive index is used. Polymers and fluoropolymers are preferably used, and these materials may be used alone or in combination of two or more kinds, and may be a single layer or multiple layers.

The core is not particularly limited as long as it has a higher refractive index and a light transmitting property than the flexible tube, and a viscous liquid, a solid or a gel is usually used. . Examples of the viscous liquid or gel core include polyols such as polyethylene oxide, polypropylene oxide and glycerin, polyol esters, polyol ethers, phosphoric acid esters such as chloroethyl phosphate, dichloropropyl phosphate, liquid paraffin and fluoro oil. , Silicone oil, polyisobutylene, polysiloxane-modified polyether, an aqueous solution of an inorganic salt, a polymer solution obtained by diluting a polymer with a suitable solvent, and the like, and a solid core such as polymethylmethacrylate.

When the core is in the form of viscous liquid or gel, both ends of the flexible tube are made of a translucent material such as glass or quartz so as not to leak from the flexible tube. It is preferable that the solid core is accommodated in the flexible tube by inserting a monomer of synthetic resin into the flexible tube and polymerizing it in a properly shaped state. A preferable example of such a tubular luminous body is Ray Duck Light manufactured by Bridgestone Corporation.

In the light emitting means comprising the tube-shaped light emitting body as described above, the light emitting means may be directly attached to the buffer body, but when the tube-shaped light emitting body is fitted and attached in the transparent long protective tube, it is attached. Since the tubular luminous body is not exposed to the outside and is protected by the transparent long protective tube, damage is prevented. The transparent long protective tube is not particularly limited in its cross-sectional shape as long as it has an insertion hole into which the tubular light-emitting body is inserted in the longitudinal direction, and may be divided into a plurality of pieces in the longitudinal direction. Good. The transparent long protective tube is generally formed of a hard material made of transparent resin such as colorless or colored light, synthetic resin such as polycarbonate or acrylic resin. Also, by covering a part of the transparent long protective tube with a light-shielding material, the light passing through the transparent long protective tube from the tubular light-emitting body is transmitted in a dot line shape, or the side facing the driver or the like. You may make it permeate | transmit only to.

As the light source means, a halogen lamp, a metal halogen lamp, a xenon lamp, a high-intensity discharge lamp, a light emitting diode or the like is generally used, but the light source means is not particularly limited. Further, the power source device for making these light source means emit light may be a solar cell or a commercial power source.

[0014]

According to the vehicle shock absorbing body of the present invention, since the light emitting means which emits light and blinks linearly is attached to the outer surface of the shock absorbing body, it is possible to use it at night, during snowfall, during heavy fog, etc. It has excellent visibility, and its light emitting means is attached to the outer surface of the buffer body along the circumferential direction, so it can be run from any direction other than the front such as a vehicle traveling in a curve. The visibility of the incoming vehicle does not deteriorate. Further, since the light emitting means emits light that is guided by the light source means to be turned on and off, it does not require electrical wiring, and therefore has excellent water resistance and is easy to maintain.

[0015]

Embodiments of the present invention will now be specifically described with reference to the drawings. 1 is a perspective view showing an embodiment of the present invention installed mainly for a median strip, and FIG. 2 is shown in FIG.
3 is a sectional view showing an embodiment of the light emitting means, and FIG. 4 is a configuration diagram of FIG.

In the drawings, 1 is a buffer body, 2 is a light emitting means, and 3 is a light source means. The buffer body 1 is made of a hollow body such as synthetic resin or rubber, and the hollow body is appropriately filled with a cushioning material 11 such as a sand bag or a water bag. A concave groove 12 is spirally provided on the outer surface of the buffer body 1 along the circumferential direction, and a long light emitting means 2 is fitted in the concave groove 12 and is spirally attached. It should be noted that the buffer body 1 has a groove 1
The light emitting means 2 may be attached by simply winding the light emitting means 2 around the outer surface of the buffer body 1 without providing 2, but if the groove 12 is provided and the light emitting means 2 is fitted in the groove 12, the light emitting means 2 is attached. It is preferable because it can be attached properly and easily.

As the light emitting means 2, a tubular light emitting body 2a is used in this embodiment. That is, as shown in FIG. 3, the tubular light-emitting body 2a has an outer diameter 1 of two layers made of a fluororesin having translucency and polyvinyl chloride having translucency.
A viscous liquid core 22 is housed in a 6 mm flexible tube 21, and a sealing material 23 made of quartz glass at both ends.
It was blocked by.

Further, in the buffer body 1, a light source box 3 is provided.
1 is mounted in the light source box 31, and a light source means 3 emitted by a power source device (not shown) such as a commercial power source or a solar cell, and the light emission of the light source means 3 are appropriately blinked, or at night, There are provided a controller 32 that controls light emission only during snowfall, heavy fog, and the like, a color filter 34 that changes the light 33 of the light source means 3 into colored light, and the like. Then, one end of the light emitting means 2 is inserted into the light source box 31 in the buffer body 1, and the inserted light emitting means 2 is inserted.
One end surface of the light source means 3 with the color filter 34 interposed therebetween.
Is being opposed to.

As shown in the configuration of FIG. 4, the light 33 of the light source means 3 which is supplied with power from the power supply device and is controlled by the controller 32 to emit light and blink, passes through the color filter 34 and is emitted from the tube-shaped light emitter 2a. The light 33 that is incident from one end of the core 22 is reflected at the boundary surface between the flexible tube 21 and the core 22, and the repetition of this reflection causes the incident light 33 to be transmitted to the other end of the core 22. Part of the light is emitted from the outer peripheral surface so that the light is emitted in a highly efficient and uniform linear manner. In this embodiment, the end face of the tubular light emitting body 2a is the light source box 3
The light 33 is inserted into the optical fiber 1 and faces the light source means 3. However, another light transmitting means is interposed between the light source means 3 and the end face of the tubular light-emitting body 2a, and the light 33 from the light source means 3 is optically transmitted. The light may be guided to the tubular light-emitting body 2a through the means. Further, both end surfaces of the tubular light emitting body 2a may be opposed to the light source means 3 and light may be guided to the tubular light emitting body 2a from both end surfaces.

[0020]

According to the vehicle shock absorbing body of the present invention, since the light emitting means that emits light and blinks linearly is attached to the outer side surface of the shock absorbing body, at night, during snowfall, and during heavy fog. In addition, it has excellent visibility, and since its light emitting means is attached to the outer surface of the buffer body along the circumferential direction, it travels from any direction other than the front, such as a vehicle traveling in a curve. The visibility of the incoming vehicle does not deteriorate. Further, since the light emitting means emits light by emitting the light guided from the light source means, it does not require electric wiring, and therefore has excellent water resistance and is easy to maintain.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of FIG.

FIG. 3 is a sectional view showing an embodiment of a light emitting means.

FIG. 4 is a configuration diagram of FIG. 1.

[Explanation of symbols]

 1 buffer body 12 concave groove 2 light emitting means 2a tubular light emitting body 21 flexible tube 22 core 23 sealing material 3 light source means 31 light source box 32 controller 33 light 34 color filter

Claims (3)

[Claims] 1. A buffer body, a light emitting means mounted on the outer surface of the buffer body along the circumferential direction and emitting linear light, and guiding light to the light emitting means to emit light from the light emitting means. A collision buffer for a vehicle, comprising: a light source means for blinking. 2. The vehicle collision according to claim 1, wherein a concave groove is formed along the circumferential direction on the outer side surface of the buffer body, and the light emitting means is fitted and attached to the concave groove. Buffer. 3. The light emitting means is a tube-shaped light emitter, and the tube-shaped light emitter is housed in a flexible tube and has a higher refractive index than the flexible tube. A core, comprising:
Alternatively, the vehicle collision buffer according to the item 2.