JP3036502U - Light-emitting road tack - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a self-luminous road tack with few protrusions on a road surface by using a solar cell. SOLUTION: A transparent protective plate itself as a protective cover of a solar cell is engraved in a V-shaped groove shape, and a light beam is emitted vertically from a light emitting element LED from directly below an inclined surface thereof to be refracted and reflected in a cut, and a horizontal direction. Causes radiant light to be emitted to the outside.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a self-luminous road tack.

[0002]

[Prior art]

 Many of the road studs embedded in road intersections, center lines or stop lines are self-luminous, especially solar cells for the purpose of saving installation costs and maintenance-free. It has a structure such as the utility model 3-86115 and the utility model 4-17410.

On the other hand, the fact that the main body is projected from 3 cm to 5 cm from the road surface as described above has an unfavorable effect on both passing vehicles and the road itself, and it is attempted to lower the rising portion from the road surface as much as possible. Several improvements are emerging. Examples thereof include JP-A-6-330512, JP-A-8-3946, and JP-A-8-74217.

[0004] These are designed to make the protrusion on the road surface as low as possible, so that the light emitting element is divided into the outside of the solar cell under the upper transparent protective plate or the solar cell to form a space between them to emit light. The element is arranged.

[0005]

[Problems to be solved by the device]

 In the improved type as described above, the light emitting element is made to emit light obliquely upward from below the transparent plate, and the amount of light emitted to the outside is reduced because the emitted light is reflected downward on the lower surface of the transparent plate. In order to prevent this, the light-emitting element installation hole facing diagonally upward is inserted in the transparent plate, the light-emitting element is put in it, and light is emitted diagonally inside the transparent plate itself, so that the light that exits the surface of the transparent plate is further It is processed so that it is refracted and emitted to the outside. In this case, there are some cases where the edge of the transparent plate that is exposed to the ground is cut slightly, and the light is emitted to the outside from there. The present invention makes it possible to reduce the technical difficulty required for processing with a slight inclination angle to these transparent plates themselves, and to reduce the loss of the emitted light amount as much as possible.

[0006]

[Means for Solving the Problems]

 In the present invention, since the light beam is emitted horizontally from the transparent protective plate on the upper surface, the emission surface is vertical.

Further, since the light beam is incident on the vertical surface at a right angle, the transparent protective plate is dug into a V-shaped cross section at an angle of 45 °, and the light beam from below is incident on the 45 ° surface and horizontally at 90 °. It is characterized by having a groove that bends in the direction.

Further, a light emitting element which emits a light beam from below is arranged so as to emit light vertically upward just below the left inclined surface of the V-shaped groove.

Further, in order to enhance the reflection performance of the V-shaped cut surface, it is desirable to deposit a metal film on the cut surface. This is because if rainwater accumulates in the ditch, the light will escape upward without being reflected and refracted.

Further, in order to prevent the V-shaped cut surface from being flawed, it is also possible to protect the reflective surface by filling the V-shaped groove (or the above-mentioned reflective surface with a trapezoidal groove) with the same or different filling material. Is effective for.

[0011]

[Action]

 The entire display of the self-luminous road tack with the above configuration is contained in a strong metal housing, and the light flux reflected and refracted by the V-shaped groove inclined surface of the transparent protective plate on the top is vertically (horizontally) to the outside. If it is installed on the road surface with the radiation surface exposed vertically, the solar cell under the transparent protective plate can detect the ambient brightness by the sensor that detects the ambient brightness or the generation of Taiyo battery. Since it has a control unit that generates electricity by performing illuminance determination based on the amount of energy, performs charging, and starts discharge light emission when it becomes dark, it can function as a self-luminous road tack.

Further, since the surface from which the light is emitted is vertical, there is an advantage that the flaw due to the vehicle getting over the tire is less than in the case of the slope of the edge portion that emits the light as in No. 3011458.

[0013]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. On the upper surface of the transparent protective plate 2 on the upper surface of the main body outer casing 1, a V-cut portion 4 is formed, which is recessed in a V-shaped groove for refracting light from the light emitting element 3, and its inclination is 45 degrees. The light emitting device LED3 is installed upwardly just below the V-cut portion 4 on the left side inclined surface, the solar cell 5 is fixed under the transparent protective plate 2 with transparent resin, and the panel 6 for vertically fixing the light emitting device 3 is placed on the panel shelf. 7, and an electric double layer capacitor as a control unit and a storage battery is placed in the lower partition wall 8 (not shown). The outer O-ring 9 and the inner O-ring 10 are provided so as to prevent rainwater from entering, and the transparent protective plate 2 is tightened to the outer casing 1 of the main body with the fastening bolts 11. The radiant light emitting surface 12 of the transparent protective plate 2 is exposed and this is embedded in the road surface layer.

When the night-time LED starts to emit light, the light flux travels straight upward in the transparent protective plate 2, hits the reflection surface of the V-cut portion 4 and is reflected, and the optical axis is bent 90 degrees and passes through the radiation emission surface 12. It is radiated to the outside and can be confirmed by the driver from a great distance, thus increasing the caution and warning effect.

The self-luminous road tack completed as described above has a large number of charging / discharging times and is maintenance-free due to the combination with the electric double layer capacitor. The transparent protective plate 2 and the outer casing 1 of the main body are firmly fixed to each other by a locking bolt 11 that firmly locks them so that they can be opened.

In addition, the subsidence prevention plate 13 may be extended so as not to fall into the embedding hole when it is embedded in the four corners of the outer casing 1 of the main body, and the ring-shaped non-slip projections 14 with drainage grooves may be attached to the upper surface thereof. It is valid.

The outer casing 1 of the main body is formed in a two-step cylindrical shape consisting of a large diameter portion 1a on the upper side and a small diameter portion 1b on the lower side. The small diameter portion 1b is provided with anti-rotation reinforcing ribs 15 in four directions and its ribs. It is formed with a neck hole 15. Further, the control section and the electric double layer capacitor are housed in the internal partition wall 8.

[0018]

[Effect of the invention]

 Since the present invention is configured as described above, it has the following effects.

Since the exposure from the road surface is about 5 to 6 mm, the impact of passing the vehicle is small, the adverse effect of the impact on the stud body is small, and the traveling obstacle of the vehicle can be reduced. .

By using an electric double-layer capacitor based on the idea of the applicant's stakeholder's prior application, Japanese Patent Application No. 8-127598, charging / discharging is performed even in a time or place where sunlight is not radiated, such as in rainy or snowfall. It becomes possible to emit light.

[Brief description of the drawings]

FIG. 1 is a plan view of a finished product of an embodiment.

FIG. 2 is a plan view of a transparent protective plate (showing details of the cut).

FIG. 3 is a plan view of the main body excluding a transparent protective plate and a panel plate (excluding a control unit and an electric double layer capacitor).

FIG. 4 is a side view including the AA ′ cross section (the same applies to the front view).

FIG. 5 is an explanatory cross-sectional view showing an engraving cross section of a reflecting surface and a filling.

[Explanation of symbols]

 1 Main body outer casing 2 Transparent protective plate 3 Light emitting element 4 V cut part (reflection surface) 5 Solar cell 6 Solar cell / light emitting element panel board 7 Solar cell / light emitting element panel board storage shelf 8 Partition wall 8'Control section / electricity 2 Multilayer capacitor storage chamber 9 Outer O-ring (groove) 10 Inner O-ring (groove) 11 Locking bolts 11 ', 11 "Locking bolt hole 12 Radiation emitting surface 13 Anti-sink plate 14 Anti-slip protrusion 15 Rotation stop / reinforcing rib 16 Slotted hole 17 Trapezoidal section cut 18 Filling

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[Procedure amendment]

[Submission date] October 29, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (2)

[Utility model registration claims] 1. In a road surface embedded self-luminous road tack having a transparent protective plate on the upper surface for a solar cell, a light emitting element LED is installed straight up below a transparent plate, and the light emitting element LED Dip the transparent protective plate in the upper part at an angle of 45 °,
A structure of a self-luminous road tack that is characterized in that the emitted light of the ED is horizontally reflected by its inclined surface and emitted and emitted to the outside for visual recognition. 2. A cross section V of a reflecting surface of the self-luminous road tack according to claim 1, which is processed directly above the light emitting element of the upper transparent protective plate.
A structure for forming a reflection surface, characterized in that a character-shaped cut is formed by fixing a padding having the same cross section as the cut formed separately in the cut hole including formation of a reflection surface having a trapezoidal or one-sided right-angled trapezoidal cross section.