JPH0612015Y2 - Road gaze guide - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a gaze marker for roads which is installed along a road and guides the sight line of a night vehicle driver to measure traffic safety.

(Problems to be solved by the conventional technology and device) Conventionally, the gaze target for roads is colored so that its retroreflector and light emitters are conspicuous as much as possible both day and night,
The guidance function of the vehicle driver was given the highest priority. For this reason, in recent city planning, etc. that emphasizes landscapes, there are cases in which the gaze guides are so conspicuous that their presence does not harmonize with the surrounding landscape. There was a problem that could not be addressed.

(Means for Solving the Problems) In order to solve the above problems, the present invention changes the color of the retroreflector and the illuminant part to a dark color so as to be inconspicuous in the daytime, and to produce an induction effect at night, such as colorless It is designed to return to the original color. That is, the gaze marker for road according to the present invention is made of a photochromic material in which the retroreflector of the guiding specimen is discolored by ultraviolet rays. Alternatively, the main road gaze guide is provided with a cover made of a photochromic material that is discolored by ultraviolet rays on the front side of the retroreflector or the light emitter of the guide sample body.

(Example) Hereinafter, the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a first embodiment of a visual guide mark for road according to the present invention.

In FIG. 1, (1) is a guide specimen body, (2) is a pillar, and (3) is a retroreflector. The guide sample body (1) comprises a retroreflector (3) mounted on an appropriately shaped base frame made of synthetic resin, metal or the like, and attached to the upper end of the column (2). The guide sample body (1) does not necessarily have to be attached to the support column (2), and may have a shape such that it can be directly attached to a guard rail, a side wall, or the like.

The retroreflector (3) is a general-purpose reflective lens having a large number of prismatic irregularities on the back surface. Also, this reflector (3) is made of a photochromic material, and changes to gray, brown, blue, or other dark colors during the day when light containing ultraviolet rays is emitted, and returns to its original colorlessness at night when there is no ultraviolet light. Has been done. As the photochromic material that is discolored by the ultraviolet rays, for example, a spirooxazine-based photochromic compound or a composition containing the compound is mixed with a transparent synthetic resin material such as polycarbonate, polyacrylate, or polymethacrylate.

FIG. 2 is a perspective view showing a second embodiment of the visual guide sign for road according to the present invention.

In FIG. 2, (1) is a guide specimen body, (2) is a support, and (3) ′.
Is a retroreflector and (4) is a cover. The guide sample body (1) and the support column (2) are the same as those in FIG. Also, a retroreflector
(3) ′ is a general-purpose material and a general-purpose reflective lens. Instead of the retroreflector (3) ', a self-luminous body composed of a plurality of light emitting diodes or the like may be provided.

The cover (4) is provided on the front side of the retroreflector (3) 'and is made of a photochromic material and changes its color to gray, brown, blue or other dark colors during the day when light including ultraviolet rays is emitted. , It is designed to return to the original colorless at night when there is no ultraviolet light. As the photochromic material which is discolored by the ultraviolet ray, the same material as described above may be used. Further, in the case of FIG. 2, the cover (4) is a cover material having a curved surface and is attached to the guide specimen body (1), but the surface of the reflector (3) 'is directly covered by coating or the like. It may be done like this. In addition, reflector
In the case of directly coating the surface of (3) ′, the coating film-like cover (4) may be formed by directly coating the photochromic compound or a composition containing this compound on the surface of the reflector (3) ′. .

(Effects of the Invention) As described in detail above, the gaze marker for a road according to the present invention is made of a photochromic material whose retroreflector is discolored by ultraviolet rays, or has a UV Since it is provided with a cover made of a photochromic material that discolors due to, the retroreflector or the light emitter part has an excellent inducing effect at night, and it changes color during the daytime to become an inconspicuous dark color, and with the surrounding landscape There is no sense of incongruity, and you can easily deal with the current landscape-oriented situation.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a road gaze guide for the present invention, and FIG. 2 is a perspective view showing a second embodiment of a road gaze guide for the present invention. 1 ... Guide specimen, 2 ... Post, 3, 3 '... Retroreflector, 4 ... Cover.

Claims (2)

[Scope of utility model registration request] 1. A gaze marker for a road made of a photochromic material in which a retroreflector of a guided specimen is discolored by ultraviolet rays. 2. A gaze marker for road use in which a cover made of a photochromic material that is discolored by ultraviolet rays is provided on the front side of a retroreflector or a light emitter of the guide sample body.