JP2001164525A - Self-luminous type traffic button - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-luminous traffic button, which has a self-luminous function making an illuminant shine by the electromotive force of a solar cell and is not broken particularly by a grader on a fallen-snow road surface. SOLUTION: A light transmitting body 2 in which a central top face is formed in a projecting surface section is installed to the upper section of a case body 1, the case body 1 is covered with a protective cover 3 opened so that the projecting surface section 21 of the light-transmitting body 2 is exposed while a solar cell 5, an electric capacitor 6, the illuminant 7 and a control substrate 8 are unitized and housed to the lower section of the light-transmitting body 2, and solar rays are received by the projecting surface section 21 while the light of the illuminant 7 is radiated. The traffic button can also be used without trouble in a snowy district because a part of the protective cover brought near to the projecting surface section 21 is heaped up and formed in approximately the same surface as the projecting surface section and load and an impulse to the projecting surface section are reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed on a road surface such as a center line of a road, the center of an intersection, or a crosswalk.
The present invention relates to a self-luminous road stud which prevents a traffic accident by alerting a vehicle driver or a pedestrian by causing a light emitting body such as a light emitting diode to blink or illuminate and emit light by a power supply device.

[0002]

2. Description of the Related Art Conventionally, as a self-luminous road stud for emitting a light emitting body such as a light emitting diode by a solar cell, a light emitting window is formed on an inclined side surface of a truncated square pyramid-shaped case main body protruding from the ground. In some cases, a luminous body is mounted outward in the luminous window so that the light of the luminous body emitted by the solar cell is directly visible to a vehicle driver or the like.

In addition, a light-transmitting member is provided on the upper portion of the case body, and a solar cell, a power storage device, a light-emitting member, a control board, and the like are accommodated in the case body. There is a self-luminous road stud which is configured so that the light of the luminous body is transmitted through the translucent body and emitted to the outside.

[0004]

However, the self-luminous road stud as described above has the following problems. That is, since the luminous body is attached to the inclined side surface of the truncated quadrangular pyramid-shaped case body protruding from the road surface, the height of the case body protruding from the road surface is structurally greater than the diameter of the luminous body such as a light emitting diode. Since the minimum thickness is required,
Usually, it protrudes from the road surface by about 20 to 30 mm and is a large obstacle to traffic of vehicles and pedestrians. Particularly in a snowy area, since it protrudes from the road surface, it hinders the snow removal work, and it has been in a situation where it cannot be installed.

[0005] In order to solve the problem of protruding from the road surface, a self-luminous road stud which is attached to the upper portion of the case body and hardly protrudes from the road surface is provided.
The light-transmitting member transmits sunlight to excite the solar cell, and transmits and refracts light from the light emitting diode from below the light-transmitting member to emit light above the light-transmitting member. The upper surface of the light body was left as it was stepped on by cars. Therefore, the surface of the light-transmitting member may be scratched and damaged by the dust, and may sometimes be damaged by the load of the vehicle, or may be damaged by the concentrated stress applied to the fastener. Especially in the winter season, it was easy to be damaged by hooking damage by graders and impact damage by tire chains. If the surface of the light-transmitting body is damaged in this way, not only does the light transmittance decrease, the light-receiving function to the solar cell decreases, but also the radiation of the light-emitting diode decreases. In addition, the light-transmitting body may be damaged or cracked, and rainwater or mud may enter, thereby impairing the function of the electric component built in the case body.

Accordingly, the present invention solves the above-mentioned problems and provides a self-luminous function for illuminating a light emitting diode by the electromotive force of a solar cell, and is durable and excellent in durability.
In particular, it is intended to provide a self-luminous road stud that can be used even in snowy regions.

[0007]

In order to achieve the above object, the present invention has the following arrangement. That is, the self-luminous road stud according to the present invention is attached to an upper part of a translucent case main body having a convex portion formed on a central upper surface, and furthermore, a protective cover opened so that the convex portion of the translucent is exposed. Is covered with the translucent body, a solar cell below the translucent body, a power storage device charged by the electromotive force of the solar cell,
A luminous body that is lit by electric power from the power storage device and a control board that illuminates the luminous body are housed, and sunlight is supplied to the solar cell from the exposed top surface of the convex portion, and the light of the luminous body is It is characterized in that the light passes through the inside of the light transmitting body and is refracted from at least one of the rising surfaces of the convex portion and emitted to the outside. Further, the opening of the protective cover is opened according to the shape of the convex surface of the light transmitting body, and the opening edge facing the rising surface of the light emitting body from which light is emitted is formed lower than the upper surface of the convex surface. The opening edge portion facing the rising surface from which light is not emitted is formed so as not to be lower than at least the upper surface of the convex portion.

According to the present invention, the central portion of the light-transmitting member is a convex portion, the upper surface portion for transmitting sunlight and exciting the solar cell, and the rising portion for transmitting and refracting the light-transmitting member to emit light to the outside. Since the surface is formed so as to be exposed from the opening of the protective cover, the abrasion on the surface of the light transmitting body can be minimized in places where various vehicles frequently step on and pass. In addition, the protective cover opening edge facing the surface where the light of the luminous body does not emit light is formed flush with the convex surface at the rising surface around the central convex surface of the translucent body, so that the wheel load of the car is almost protected. Damage is further reduced because the cover can be received. Especially in snow removal work in snowy areas, there is no catch by the grader, and damage by the tire chain is reduced.

The case body is generally made of aluminum die-cast, and the inner and outer surfaces are formed so that solar cells, power storage devices, luminous bodies, control boards, and the like are easily housed, and are easily installed on road surfaces. In addition, the translucent body attached to the upper part is highly transparent in order to enhance the transmission of light from the luminous body and the incidence of sunlight on the solar cell,
In addition, a hard reinforced glass or a synthetic resin such as a polycarbonate resin or an acrylic resin having excellent impact resistance, scratch resistance, weather resistance, and the like is preferably used.

Further, since the protective cover mounted on the case body protects the light-transmitting body attached to the upper part of the case body, the case is hardly damaged even when stepped on by the tires of the car. A form is formed in which the force is evenly distributed to the main body and the light transmitting body so that a concentrated load is not applied. A cushioning material is provided between the translucent body and the protective cover to absorb the impact of the car and prevent the translucent body from being damaged, and screwed firmly with screws to prevent rainwater from entering. Good.
The material of the protective cover may be formed by press-forming a steel plate or formed by aluminum die-casting, as long as it is a material that can withstand loads and impacts of various vehicles and has a rust-preventing effect.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. First, FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is an explanatory view of FIG. 1, FIG. 4 is a perspective view showing one embodiment of a protective cover, FIG. 5 is a perspective view showing another embodiment of the protective cover.

In the drawing, a light transmitting portion 2 is attached to an upper portion of a case body 1, and a convex portion 2 is provided at the center of the upper surface of the light transmitting portion 2.
1 is formed, a protective cover 3 having an opening at the center is covered on the case main body 1 so that the convex portion 21 is exposed, and a cushioning material 4 is narrowly provided between the protective cover 3 and the light transmitting portion 2. The main body 1 is screwed with screws 31. A solar cell 5, a power storage device 6 that charges the electromotive force of the solar cell 5, a light emitting diode 7 that is turned on by power from the power storage device 6, and a control device 8 that turns on the light emitting diode 7 are provided below the light transmitting body 2. The unit is housed and fixed. The light-emitting diode 7 is mounted on a plastic support 71 and fixed in the horizontal direction, and the devices are electrically connected by wiring.

According to the present invention, the upper surface of the translucent convex portion 21 exposed from the protective cover 3 and the road surface are substantially buried in the concave portion pre-perforated on the road surface, leaving the upper surface of the protective cover 3 exposed. It is fixed by cement 9 so as to be flush, and the sunlight passes through the light transmitting body 2 to excite the solar cell 5, and the light emitting diode 7 is illuminated via the power storage device 6. The light is refracted on the inclined surface of the light transmitting body 2 and transmitted through the inside of the light transmitting body, and is further refracted on the rising surface 22 of the convex portion 21 and emitted in a substantially horizontal outward direction. That is, the light a horizontally radiated from the light emitting diode 7 attached to the lower part of the light transmitting body 2
Is refracted upward on the inclined surface of the light-transmitting body 2 toward the rising rising surface of the upper surface of the light-transmitting member, and further refracted in the substantially horizontal direction on the inclined surface and emitted outward. The angles of the light incident surface α and the light emitting surface β are set by the refractive index. From the above, the driver on the traveling vehicle can visually recognize the light of the light emitting diode under the optimum condition.

The protective cover 3 is mounted so that the rectangular convex portion of the light transmitting body 2 is exposed.
In those radiated from, the opening edge of the protective cover in the direction of light emission is formed lower than the upper surface of the convex portion, and the opening edge not in the direction of light emission is at least higher than the upper surface of the convex portion. The height is not too low. If the light is emitted in only one direction,
The other three opening edges may be formed substantially flush with the upper surface of the convex portion, or in the case where light is emitted in four directions such as an intersection, the four edges of the convex portion The raised surface does not have to be formed. The protective cover formed by partially raising the surface shape of the opening edge in this way is made of a material having a high load resistance, impact resistance and rust resistance, such as a press-formed product made of a stainless steel plate or an aluminum die-cast, and in particular, The facility can be installed in snowy regions by reducing the effects of grader running and tire chains during snowfall, and at the same time, durability is improved.

The convex portion may not necessarily be a rectangular flat surface, but may have an irregular shape depending on the direction in which light is radiated. There is no particular limitation as long as it is effective for receiving sunlight and a rising surface shape effective for emitted light from the light emitting diode.

[0016]

According to the present invention, a light-transmitting member having an upper surface portion for transmitting sunlight and exciting a solar cell and a rising surface for transmitting and refracting the light-transmitting member and emitting light to the outside are formed. The convex surface of the protective cover is exposed at the center of the protective cover,
Furthermore, since a part of the opening edge of the protective cover is formed so as to be at least flush with the convex portion, even if the vehicle is frequently stepped on, the scratches on the surface of the light-transmitting body and damage to the main body are prevented. Can be minimized. Also, even if the vehicle is stepped on by a car, most of the wheel load can be received by the protective cover, so that the wheel is hardly damaged. Especially in snow removal work in snowy areas, there is no catch by the grader and there is little damage by the tire chain.

[Brief description of the drawings]

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

FIG. 2 is a plan view of FIG.

FIG. 3 is an explanatory diagram showing an embodiment of the present invention.

FIG. 4 is a perspective view showing an embodiment of the protective cover of the present invention.

FIG. 5 is a perspective view showing another embodiment of the protective cover of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Translucent body 21 Convex part 22 Standing surface 3 Protective cover 31 Screw 32 Screw hole 33 Rising surface 34 Opening edge 35 Opening 4 Buffer material 5 Solar cell 6 Power storage device 7 Light emitting diode 71 Plastic support 8 Control board 9 Cement a Light of a light emitting diode α Incident plane angle of a translucent body β Emissive plane angle of a translucent body

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D064 AA02 AA03 AA22 BA11 BA12 CA03 CA04 CA05 CA09 DA08 EB05 EB34 GA02 GA03 HA13

Claims (3)

[Claims] 1. A light-transmitting member having a convex surface formed on a central upper surface is attached to an upper portion of a case body, and a protective cover opened so that the convex portion of the light-transmitting member is exposed covers the light-transmitting member. A solar cell, a power storage device charged by the electromotive force of the solar cell, a light-emitting body that is turned on by power from the power storage device, and a control board that turns on the light-emitting body are housed under the light-transmitting member. While supplying sunlight to the solar cell from the exposed upper surface of the convex portion, the light of the luminous body passes through the inside of the light transmitting body and is refracted from at least one surface of the convex portion rising surface to the outside. Self-luminous road studs, characterized in that they are released. 2. An opening of the protective cover is opened according to the shape of the convex portion of the light transmitting member, and an opening edge portion facing a rising surface of the light emitting member from which light is emitted is lower than the upper surface of the convex portion. 2. The self-luminous road stud according to claim 1, wherein the formed edge is formed so that an opening edge facing a rising surface from which light is not emitted is at least lower than an upper surface of the convex portion. 3. The light-transmitting member according to claim 1, wherein the cushioning material is narrowly provided between the light-transmitting member and the protective cover, and is screwed to the case body or the light-transmitting member from above the protective cover.
Or the self-luminous road stud according to 2.