JP2002258023A - Reflection body to be attached to supporter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reflection body to be attached to supporters, which performs retroreflection concerning each vehicle coming from each direction of a route and is easily attached to the supporters, etc., by setting the reflection luminance at an efficient angle. SOLUTION: Reflection surfaces 4 (41, 42 and 43) which are attached to a supporter 3 of a road equipment, etc., and whose main body front surfaces are turned to the respective directions of the route are formed by multiple retroreflection groups 4a and 4b, etc. Reflection luminance is enhanced to permit the respective retroreflection groups 4a, 4b, etc., to be turned to one direction in light axis. The rear surface side of the main body surfaces is formed to be a recessed surface shape to interpolate the curved surface of the supporter so that so that the reflection body is stably fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflector for attaching a support to a support of a traffic safety facility such as a curved mirror, a sign support, or a road fence.

[0002]

2. Description of the Related Art Conventionally, a reflector attached to a pillar of this type is formed of an adhesive layer formed on a back surface by winding a reflection tape having finely treated glass beads on the surface thereof into a headband shape. In general, there is one which is directly attached to the surface of the support. In addition, a flat prism or FIG.
As shown in (1), a flat molded body in which large glass beads are embedded at regular intervals is fixed to a support by screws or rivets, and receives a vehicle light coming from one direction to retroreflect.

[0003]

However, this reflective tape does not come off in close contact with a new pillar such as a traffic safety facility because the pillar surface is smooth and free of dirt when the pillar is newly installed. If a reflective sheet is retrofitted to add a reflective surface, the paint on the support surface will be rough and the surface will be rough, resulting in insufficient adhesion of the reflective tape. May enter and gradually peel off. Therefore, there is a problem that the durability is poor when retrofitting the reflective tape.

[0004] Further, since the reflective tape is wound around a curved surface such as a pillar, the reflective surface becomes a curved surface, and light radiated from one direction is illuminated from an oblique direction in most projected areas. However, in the reflective tape, light coming from a direction perpendicular to the reflective surface is most efficiently retroreflected, and the retroreflective function necessarily decreases as the incident angle increases. Therefore, the projected area of the reflection sheet wound on the support pillar becomes strong reflected light and is not returned. In addition, the surface is easily damaged, and even if a small amount of dirt adheres to the surface, the luminance is reduced and visibility is deteriorated.

On the other hand, a molded body in which the prism or the large glass beads are embedded can efficiently and retroreflect the light of the light irradiated from one direction, so that visibility can be enhanced. Is designed to receive light in one direction and retroreflective, so in order to retroreflective to vehicles coming from the vertical line of the road, multiple reflectors must be oriented in each direction and the installation angle It is necessary to attach it after careful consideration. In addition, the mounting work is troublesome when the screws are fixed, and the mounted reflectors are not cohesive and are unsightly in design.

Accordingly, the present invention solves the above-mentioned problems, and enables retroreflection of a vehicle coming from each direction of a route individually, and furthermore, the reflection luminance is set at an efficient angle to a pillar or the like. It is an object of the present invention to provide a pole sticking reflector that can be easily attached.

[0007]

In order to achieve the above object, the present invention has the following arrangement. That is, the pole sticking reflector according to the present invention is attached to a pole such as a road facility, and a plurality of retroreflection groups form reflection surfaces directed on the main body surface in each direction of the route. Are directed in the same direction with respect to the optical axis, and the back side of the main body surface has a concave shape that complements the curved surface of the column.

[0008] According to the present invention, a reflecting surface that independently and retroreflectively is formed on the main body surface in each of the line directions,
Since the reflection surface has a plurality of retroreflection groups directed in the same direction of the optical axis, for example, when the reflection surface is attached to a pillar of a curved mirror erected on the shoulder of a T-shaped road, the reflection surface becomes a vertical line of the road and Each is directed to the branch road, and its reflected optical axis is fixed in the same direction, so that even if the vehicle approaches from either direction, all the light emitted from one direction is totally reflected by the reflective surface As a result, a strong light flux is retroreflected in the same direction.

Further, since the back side of the main body surface forms a concave surface that complements the curved surface of the column so as to be in close contact with the wall surface of the column, rattling does not occur in any way of stopping. Generally, the shape of a pillar used for a traffic safety facility or the like is a round pipe, whose outer diameter is limited to approximately four types of 60.5, 76.3, 89.1 or 114.3 mm. Is practically not hindered if it is molded into a concave shape adapted to each outer diameter.

The reflecting surface is composed of a group of glass beads in which a number of glass beads are arranged at intervals, and each glass bead of the group of glass beads is molded so as to be half-submerged on the surface of the main body, or is formed of glass. A reflecting plate formed by half-submerged molding of a bead group is formed by being fitted on the surface of the main body. That is, since the reflection surface is formed so that the reflection optical axis of each glass bead of the glass bead group is directed in the same direction, and each reflection surface is opposed to each line direction, the light of the headlight hitting the glass bead group is It receives light at a right angle to the reflective surface and returns strong light. Then, even if the angle at which light is received on the reflection surface slightly shifts as the vehicle approaches, the reflection luminance can be maintained within a range that does not lower the reflection luminance. As the glass beads used in the present invention, for example, large-sized glass beads having a particle size of about 2 mm to about 10 mm are preferably used, and the glass beads are regularly arranged at a certain interval without contact between the glass beads. , Can be firmly fixed on the main body surface, and dirt and the like hardly adhere. Further, the retroreflection luminance is increased.

On the other hand, it is technically difficult to arrange large glass beads on each of the polygonal surfaces formed by the reflection surfaces, because of the technical difficulties in the manufacturing process. It is preferable to adopt a post-processing step. If the reflector can be attached to such a main body surface by a retrofitting process, it is easy to omit a reflection surface at an unnecessary angle where retroreflection can be performed only in both directions of the lane. Also, at a complicated branch point or the like, it is also possible to appropriately attach a plurality of pieces at an angle facing each route direction. The reflector does not necessarily need to be formed of a group of large glass beads. For example, a reflector having a retroreflection function such as a high-brightness reflection sheet may be used even if it is a prism molded body.

Further, an adhesive layer may be formed on the concave surface forming the back side of the surface of the main body, and the adhesive may be directly adhered to the side surface of the column. The adhesive layer can be formed by applying a double-sided tape that strongly adheres to the concave surface, or by applying a pressure-sensitive adhesive to the concave surface mechanically and protecting it with release paper before use. Is also good. It is advisable that consideration is given to increasing the application thickness and the adhesive strength of the adhesive layer so that the adhesive strength does not decrease even if the surface of the support is slightly rough. However,
Since this adhesive layer is for outdoor use, it is necessary to select a material in which water resistance and durability are sufficiently considered.

[0013] In this manner, a traffic safety facility can be easily installed on a new pillar or an existing pillar, and the lights of vehicles approaching from various directions can be efficiently retroreflected to guide a line of sight or bend. The effect of easily recognizing the presence of a mirror, a road sign, or the like can be obtained.

[0014]

Embodiments of the present invention will be specifically described with reference to the drawings. First, FIG. 1 is an installation diagram (a) showing a state in which one embodiment of the present invention is attached to a column, and a partially enlarged perspective view (b) thereof. FIG. 2 is an explanatory diagram showing the installation state of FIG. FIG. 3 is a front view and a top view showing several examples of another embodiment of the present invention. FIG.
1 is a perspective view showing a conventional embodiment, in which (a) is a band-shaped reflector and (b) is a disc-shaped reflector.

1 and 2 will be described in detail. The pole sticking reflector 1 of the present invention has a substantially trapezoidal cross-sectional shape, and is formed into a round shape of the pole 3 such that one side forming the bottom of the trapezoid is closely attached to the outer shape of the pole 3 as the mounting surface 2. The reflection surface 4 is formed on each of the other three main surfaces of the main body. An adhesive layer 21 is formed on the mounting surface 2 and is protected by release paper until it is attached to the column 3.

The reflecting surface 4 is composed of large glass beads 4a arranged on a plane at regular intervals, and reflecting plates 41, 42, 43 integrally formed with the heads left are fitted to respective surfaces of the main body surface. To form the reflection surface 4. The angles of the reflection plates 41, 42, and 43 forming the reflection surface 4 are widened by 60 degrees from the center reflection plate 42 to the left and right to form the reflection plates 41 and 43. That is, when the light of the vehicle traveling in the lane hits any one of the reflectors 41, 42, and 43 in the vertical direction, the light is most efficiently retroreflected, and within 15 degrees around the optical axis. The retroreflected light does not attenuate even if it shakes, but the reflection luminance gradually decreases as the angle further swings. Therefore, the angle is set so that the reflection surface 3 is oriented in a direction in which the vehicle is located within a range of a deflection angle of 30 degrees with respect to the optical axis of the reflector.

More specifically, the post sticking reflector 1 of the present invention comprises a post 3 to which a curved mirror 31 is attached.
Reflecting plates 41, 43, and 42, which are pasted in the middle and are formed on the upper and lower lanes a, b and the branch road c, which are projected on the carp mirror 31, and face the reflecting path 4 are directed in the respective line directions. The vehicle coming from the direction of the branch road c hits the reflector 42 located in the center of the main body at a substantially right angle and without swinging until approaching, so that it always emits a strong retroreflective light, and the vehicles in the upper and lower lanes a and b Is set at an angle bent outward by 60 degrees from the central reflector 42 so that the light strikes the reflectors 41, 43 on the left and right sides of the main body at substantially right angles. That is, the reflector 42 in the center forms a parallel plane with respect to the vertical road, and the left and right reflection surfaces 41 and 43 are formed at an angle of 60 degrees from the parallel plane. Headlight light L1 emitted from a distance of 80 meters from which light reaches when is set downward
However, the deflection angle up to the light L2 of the headlight when approaching almost immediately falls within 30 degrees around the optical axis of the reflection surface, and good retroreflection light can be obtained. In this way, the driver becomes aware of the presence of the curved mirror from a distance and pays attention to the image projected on the curved mirror.

FIG. 3 is a front view and a top view showing several examples of another embodiment of the present invention. FIG. 3 shows the size of a reflecting plate attached to a reflecting surface formed at an angle on the surface of a main body,
The arrangement is adjusted to increase the reflection luminance. In other words, the large glass beads placed on the reflector
Since all have an optical axis in the same direction and reflect light efficiently efficiently, the larger the large glass bead group, the more the reflected light is returned as a larger light flux. Therefore, the mounting amount and size of the reflection plate are appropriately selected and used so that the reflection luminance can be changed with respect to the priority road or the priority line of the route or depending on the brightness of the surrounding illumination.

The base material for forming the reflector for sticking a support of the present invention is made of a flexible resin such as polyethylene resin or ABS resin, which is strong against impact and has excellent weather resistance. Sufficient resin to protect is selectively used. The color of the substrate is not particularly limited, but black is preferably used in consideration of weather resistance, retroreflectivity, visibility, and the like. In addition, since the glass bead used here has a mirror-finished half surface of the sphere by vapor deposition plating, the light incident on the glass bead is formed by half-burying the mirror surface portion in the base material and molding. The light is totally reflected by the mirror surface and efficiently returned without being affected by the color of the base material itself. Furthermore, the shape of the glass beads may be a true sphere,
Taking into account the refractive index of the glass beads, it is more preferable that the irregular sphere is such that the light is focused on a spherical surface, since the light of the headlight can be retroreflected without waste.

When glass beads are used for the reflector, a part of the glass beads is exposed and buried on the surface of the base material, so that light coming obliquely can be captured and retroreflected. Therefore, the light receiving angle of the headlight can be made wider, and even if light is received from a wider angle, the light is retroreflected. Further, since the surface of the glass beads for receiving light is smooth and hard, dirt is hardly adhered and easily removed.

[0021]

According to the present invention, it can be easily attached to the side of a pillar on which a curved mirror or the like of a road is installed, and the headlight emitted from each direction is efficiently received and becomes strong light and is retroreflected. It has a high gaze guidance effect, avoids contact with the struts and collisions, and also allows the presence of the curved mirror to be recognized from a distance. Become. Therefore, traffic accidents can be prevented.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view showing a state where one embodiment of the present invention is attached to a support.

FIG. 2 is an explanatory diagram showing a state where the embodiment of the present invention shown in FIG. 1 is installed on a road.

FIG. 3 is a front view and a top view showing several examples of another embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional embodiment, and FIG.
Is a band-shaped reflector, and (b) is a disc-shaped reflector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prop sticking reflector 2 Mounting surface 21 Adhesive layer 3 Prop 31 Curve mirror 4 Reflecting surface 41, 43 Left and right reflector 42 Central reflector a, b Vertical lane c Branch road L Headlight L1 Head from a distance Light of light L2 Light of approaching headlight

 ──────────────────────────────────────────────────続 き Continued from the front page F term (reference) 2D064 AA12 AA22 CA03 DA05 DA16 DA16 EB25 EB26 2H042 EA01 EA07 EA17 EA18 EA19

Claims (3)

[Claims] 1. A plurality of retroreflection groups each having a reflection surface attached to a pillar of a road facility or the like and oriented on a main body surface in each direction of a line, and each of the retroreflection groups has the same optical axis. A reflector for sticking poles, characterized in that it is oriented in the direction, and the back side of the main body surface has a concave shape that complements the pillar curved surface. 2. The reflection surface is composed of a group of glass beads in which a number of glass beads are arranged at intervals, and each glass bead of the group of glass beads is molded so as to be half-submerged on the surface of the main body, or is formed of glass. 2. The reflector according to claim 1, wherein a reflector in which a group of beads is half-submerged is fitted and formed on the surface of the main body. 3. The method according to claim 1, wherein an adhesive layer is formed on the concave surface forming the back side of the main body surface, and the adhesive layer is directly adhesively attached to the side surface of the support. The reflector for attaching the support described in the above.