JPH11166213A - Emission road mark for road embedding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive visibility of light emission from a great distance by arranging a number of irregularities on the surface of a transparent polycarbonate resin-made board, and fitting an electro-luminescence panel, silicon resin and a rear cover on recess parts provided on the rear face in order. SOLUTION: A transparent electrode and a rear electrode are overlapped on the upper and lower faces of a light emission layer to be made in the form of a thin plate by a package film from both faces so as to lead a lead wire from the end of each electrode. In this case, white color and orange color are used as an electro-luminescence panel 4, which is fitted to the recess part 3 of the rear face of a board 1 to be filled with silicon resin 10. Furthermore, a polycarbonate resin-made rear cover 11 applying silicon resin on the outer peripheral part is fitted to the recess part 3 to airtightly seal ELP 4. Structure is simple, setting is easy, wear resistance is high and at the time of light emission power consumption can be lessened. An arbitrary display shape such as an arrow mark and speed display is embedded in a road surface and attention can be called by light emission in the nighttime of rain.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-emitting road sign for embedding a road surface using an electroluminescence panel (hereinafter abbreviated as "ELP") as a light-emitting body.

[0002]

2. Description of the Related Art Conventionally, there are various types of illuminated road signs using ELP as a luminous body, but all of them are for signboards and wall displays, and are used on road surfaces using ELP as a luminous body. There was no illuminated road sign for embedding to the knowledge of the present inventors.

[0003]

The lack of a light-emitting road sign for embedding a road surface using ELP as a light-emitting body has not been heretofore required because the construction is troublesome, the cost is high, and there is a problem in abrasion resistance. It is considered that light emission performance was not sufficient.

[0004]

SUMMARY OF THE INVENTION The present invention provides a novel light-emitting road sign for embedding a road surface using an ELP as a light-emitting body. The light-emitting road sign is used to seal an ELP inside a transparent polycarbonate resin substrate. By providing a large number of irregularities on the surface, light emission by ELP can be visually recognized even from a distance.

That is, a first aspect of the present invention is that a large number of irregularities 2 are formed on the surface of a transparent polycarbonate resin substrate 1 and a concave portion 3 is formed on the entire back surface, and an electroluminescent panel is formed in the concave portion 3. 4. A luminous road sign for embedding a road surface, wherein a silicon resin 10 and a back cover 11 are sequentially fitted.

A second aspect of the present invention is that a large number of irregularities 2 for preventing slippage are formed on the surface of a transparent polycarbonate resin substrate 1 and a concave portion 3 is formed on the entire back surface. The electroluminescent panel 4, the silicon resin 10, and the back cover 11 are sequentially fitted into the stainless steel shallow container 12 having an upper opening, with the surface of the substrate 1 facing upward. It is a light emitting road sign for embedding a road surface.

A third aspect of the present invention is the first and second aspects.
In the invention, the light-emitting road sign for embedding a road surface, in which the surface of the transparent polycarbonate resin substrate 1 bulges in an arc shape.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a light emitting road sign for embedding a road according to the present invention.

FIG. 1A is a front view of a light-emitting road sign for embedding a road surface according to the present invention, FIG. 1B is a cross-sectional view taken along the line BB of FIG. 1A, and FIG. It is AA sectional drawing of (A).

In FIG. 1, reference numeral 1 denotes a substrate 1 made of a transparent polycarbonate resin (hereinafter sometimes simply referred to as "substrate 1"). 3 are provided.

Reference numeral 4 denotes an ELP fitted in the concave portion 3. A back cover 11 made of a polycarbonate resin is fitted on the lower surface of the ELP 4 via a silicone resin 10, and is adhered to seal the ELP 4.

In the present invention, a transparent polycarbonate resin is used for the substrate 1 and the back cover 11 because the resin is high in transparency and has high mechanical strength such as bending strength, compressive strength and shear strength, so that it is embedded in a road surface. This is because it is possible to satisfy a condition that can endure a severe condition that various vehicles run for a long period of time.

The size of the substrate 1 manufactured by the inventor is about 175 cm in width, about 525 cm in length, and about 15 m in thickness.
m, the height of the irregularities 2 on the front surface is about 2 mm, the depth of the concave parts 3 on the back surface is about 5 mm, and the thickness of the ELP 4 is about 1 m.
m, the thickness of the silicone resin 10 is about 1 mm, and the thickness of the back cover 11 is about 3 mm.

As shown in FIG. 2, the basic structure of the ELP 4 is such that a transparent electrode 6 and a back electrode 7 are overlaid on the upper and lower surfaces of a light emitting layer 5 and package films (surface moisture-proof layers) 8 and 8 are sandwiched from both surfaces. The leads 9 are led out from the ends of the upper and lower transparent electrodes 6 and the back electrode 7.

As the ELP4 having the above-mentioned structure, various colors such as white, orange, and green are commercially available as the luminescent color, and any type of ELP4 can be freely obtained. A white or orange luminescent road sign is desirable from the viewpoint of visibility.

The illuminated road sign for embedding a road surface according to the present invention comprises:
As shown in FIG. 1 (C), an ELP 4 is fitted into the concave portion 3 on the back surface of the substrate 1 and then filled with a silicon resin 10 having a thickness of about 1 mm, and a silicone resin is applied to the outer peripheral portion from above. The ELP 4 is hermetically sealed by fitting the back cover 11 of FIG.

FIG. 3 is a cross-sectional view showing another embodiment of the illuminated road sign for embedding the road surface according to the present invention. The difference from the embodiment shown in FIG. 1-2
The point is that the rainwater that swells by mm and falls on the surface flows left and right.

In the embodiment shown in FIG. 3, in order to increase the strength of the illuminated road sign itself, the illuminated road sign in which ELP 4 is sealed is placed on a stainless steel shallow container 12 having an upper opening with the surface of the substrate 1 facing upward. The shallow-bottom container 12 is not always required.

In the illuminated road sign for embedding the road surface according to the present invention, the lighting power source of the ELP4 is 100 volts (V).
In addition to the AC power source, batteries (including solar cells) can also be used. It is well known that the higher the voltage and frequency, the higher the luminance of ELP4.

Further, in the road sign for embedding the road surface according to the present invention, the ELP is automatically installed at night using a sensor.
4 may be turned on all the time, or may be turned on and off using a relay.

In embedding the illuminated road sign for embedding the road surface into the road surface according to the present invention, a groove 13 slightly larger than the size and height of the illuminated road sign is dug into the road surface 16 and the side of the road. A groove for introducing a lead wire (not shown) is provided toward the portion, and a rubber plate 14 or a silicone resin having a thickness of about 2 mm is laid on the bottom of the groove 13 as shown in FIG. (In the case of Fig. 3, it is in a shallow container)
At the same time, the lead wire is buried in the introduction groove, and the outer peripheral portion of the light emitting road sign and the introduction groove are filled with cement 15 or asphalt and dried to be surely buried and installed.

A power source (battery), a sensor, a relay, and the like for lighting the light emitting road sign may be installed on a utility pole or the like on the road and connected to a lead wire.

Further, instead of the rubber plate 14, cement 1
5 is filled into the bottom of the groove 13 thinly, and
After the light-emitting road sign is embedded in the light-emitting road sign before it hardens, the outer periphery of the light-emitting road sign may be filled with cement 15 and dried.

In addition to the above-mentioned fixing means, screw holes 17 are provided at a predetermined pitch on the outer peripheral portion of the upper surface of the light-emitting road sign, and the light-emitting road sign is made using stainless steel anchor bolts 18 using the screw holes 17. It may be fixed to the road surface.

[0025]

Example: ELP4 manufactured by ELIX Co., Ltd.
Using white (trade name / color code: AWS), polycarbonate resin as Takiron Corporation product number: PCM
Using R56630 and Bondishi Kowa (trade name, non-acetic acid type) manufactured by Konishi Co., Ltd. as the silicone resin, the light-emitting road sign for embedding the road surface having the structure shown in FIG. Manufactured with the same dimensions.
This light-emitting road sign was placed on a road at midnight in a direction crossing the road, and a current of 100 V, 60 Hz was supplied to the leads 9 and 9, and the light-emitting road sign was gradually moved away from the light-emitting road sign to observe the light-emitting state. Even from the position, the surface of the light-emitting road sign glowing in a horizontal line was visually recognized with the naked eye.

The light-emitting road sign was placed on the road surface in the garage, and the surrounding area was fixed with clay, and the light-emitting road sign was reciprocated 50 times by a passenger car and 30 times by a dump truck. The luminescent road sign was not damaged or cracked.

When the light emission state was observed under the same conditions as above except that ELP4 was replaced by orange (trade name / color code: AO) manufactured by Elix Corporation, the same light emission state as above could be visually recognized. Was.

[0028]

The product of the present invention can be widely used as an embedded road surface road sign that emits light at night. The function to call attention when the ELP is blinked is extremely large, and an arrow mark, a line mark, a pedestrian crossing display, and a speed display are provided. By embedding it in the road surface in an arbitrary display form, the role played on traffic safety at night is extremely large.

Further, the luminous effect of the product of the present invention at night on a rainy day is vivid, the alerting effect is outstanding, and it greatly contributes to the improvement of safety.

The product of the present invention can be almost completely buried in the road surface, and since many irregularities formed on the surface are non-slip, there is no hindrance to traffic by pedestrians and wheelchairs. Things.

Further, the product of the present invention has a simple structure, is easy to install, has high abrasion resistance, and consumes little power when emitting light.

Therefore, it can be said that the industrial applicability of the present invention is very high.

[Brief description of the drawings]

FIG. 1 shows the form of a luminous road sign for embedding a road surface according to the present invention.
1A shows a structure, (A) is a surface view, (B) is B-
B sectional view, (C) is AA sectional view.

FIG. 2 is an exploded perspective view of an electroluminescence panel (ELP).

FIG. 3 is a cross-sectional view of another embodiment of a light-emitting road sign for embedding a road surface according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 Unevenness 3 Depression 4 ELP 10 Silicon resin 11 Back cover 12 Shallow bottom container 13 Depressed groove 14 Rubber plate 15 Cement 16 Road surface 17 Screw hole 18 Anchor bolt

Claims (3)

[Claims] 1. A substrate 1 made of a transparent polycarbonate resin has a large number of irregularities 2 formed on the surface thereof and a concave portion 3 formed on the entire back surface. In the concave portion 3, an electroluminescence panel 4, a silicon resin 10 and a back surface are formed. A luminous road sign for embedding a road surface, wherein a lid 11 is sequentially fitted. 2. A plurality of irregularities 2 for preventing slippage are formed on the front surface of a transparent polycarbonate resin substrate 1 and a concave portion 3 is formed on the entire back surface, and an electroluminescent panel 4 is formed in the concave portion 3. Silicon resin 10
A light-emitting road sign for embedding a road surface, wherein the back cover 11 is sequentially fitted into the stainless steel shallow container 12 having an upper opening with the surface of the substrate 1 facing upward. 3. The illuminated road sign for embedding a road surface according to claim 1, wherein the surface of the transparent polycarbonate resin substrate 1 bulges in an arc shape.