JPH08158326A - Light emitting road surface indicator interlocking with a traffic light - Google Patents

Abstract

PURPOSE: To allow light which entered from an end face to be illuminated from the side surface of a tube-like light emitting body and let the side surface which has been discovered on the road surface of an indicator to be brightened with color interlocking with a signal at a wider angle and recognize the color of the signal without looking up the signal when it is difficult to recognize a forward signal and protect the tube-like light emitting body from being damaged when a vehicle is passing over the indicator and replace the light emitting body with new one even when it is damaged. CONSTITUTION: A tube-like light emitting body 4 is inserted into a transparent continuous length 3. The transparent continuous length 3 is removably installed in a cavity 51 of a metal-made fixture 5, thereby forming an indicator 2. The indicator 2 is embedded in road surface indication spots of a passage 9 in such a fashion that the upper surface of the indicator may appear tangibly. The end face of the tube-like light emitting body 4 is directed at a light source 85 installed to the side edges of the road passage 9 and mounted thereto. A coloring filter 7 is installed between the end face 43 of the tube-like light emitting body 4 and the light source 85.

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 surface display device. More specifically, a light emitting road surface display device that shines in conjunction with various traffic lights, for example, in front of a pedestrian crossing, near the roadside zone, at a road surface display location such as near a curb, and when the intersection signal is red, The present invention relates to a light-emitting road surface display device linked to a traffic light that glows red in association with this signal and glows blue when the signal is blue.

[0002]

2. Description of the Related Art A light emitting road surface display device disclosed in Japanese Patent Laid-Open No. 6-111183 is known as a light emitting road surface display device which emits light in synchronization with various traffic signals. In this light emitting road surface display device, a tubular luminous body including a flexible tube and a core having a higher refractive index than the flexible tube housed in the flexible tube is placed in a groove of a display portion. The tube-shaped light emitter is attached so that the end surface of the tube-shaped light emitter faces the light source of the traffic signal provided on the side edge of the road, and the light of the traffic light emitted from this light source is inserted from the end surface into the tube-shaped light emitter The light is guided to a display portion through the light emitting body and is irradiated onto the road from the upper side surface of the tubular light emitting body.

[0003]

However, since the light emitting road surface display device described in the above publication emits light on the road brightly, it is preferable because it is easy to see the foot in the same color as the traffic light without looking up at the signal above. However, when a vehicle or the like passes over this, the tubular luminous body is crushed. Therefore, the tubular luminous body is usually put in a groove and a cover is used on it. Therefore,
Irradiation is performed only between the tube-shaped light-emitting device at the bottom of the groove and the extension line connecting both side edges of the entrance of the groove, and the other areas are not irradiated. Moreover, when the entrance of the groove is widened, the lid is damaged by a vehicle passing over the lid, so the width is narrowed. Therefore, the light emitting road surface display is difficult to see because it is only visible when approaching the driver of the vehicle.
Further, when a vehicle or the like passes by, the lid may come off, or the sand or the like in the groove may make it difficult to see the light emitting road surface display.

Therefore, an object of the present invention is to provide a bright light-emitting road surface display in which the vehicle is not crushed, the lid is not damaged or comes off even when the vehicle or the like passes, and the light is emitted not only from above but also at a wide angle. It is to provide a light emitting road surface display device that is linked to.

[0005]

The present invention has been made to achieve the above object, and the invention according to claim 1 is a light emitting road surface display device comprising a display member, a light source and a coloring filter. The display body includes a rigid transparent elongated body having a through hole provided in the longitudinal direction and a protruding strip provided on the outer peripheral side surface in the longitudinal direction, and a tubular shape inserted into the through hole of the transparent elongated body. The light-emitting body and the metal fixture made of a long body provided with a long recess in the longitudinal direction on the upper surface, the lower side of the protrusion of the transparent long body is inserted into the recess of the metal fixture, The transparent elongated body is detachably attached to the metal fixture by pressing the protruding strip of the transparent elongated body with a locking piece detachably attached to the metal fixture. The body is housed in a flexible tube and this flexible tube Consists of a high refractive index core than the flexible tube, the pavement markings portion of the display is a road,
The upper surface of the transparent elongated body is exposed and embedded in the road surface, and the tubular luminous body in the display body is extended from the display body and its end face is attached to the light source provided at the side edge of the road. The colored filter interlocking with a traffic light is provided between the end surface of the tubular luminous body and the light source, and the side surface of the tubular luminous body at the extended portion extended from the display body is covered.

The invention according to claim 2 is characterized in that a reflecting plate is provided between the transparent elongated body and the metal fixture.
It is a light-emitting road surface display device linked to the traffic light described. The hard transparent elongated body used in the present invention refers to an elongated body made of a hard transparent material such as colorless or colored transparent glass and synthetic resin such as polycarbonate resin and polyacrylic resin.

The tubular luminous body used in the present invention is
The flexible tube includes a flexible tube and a core having a higher refractive index than the flexible tube contained in the flexible tube. The flexible tube is formed by molding a transparent flexible material such as synthetic resin or rubber into a tube shape. As the flexible material used at this time, synthetic resins such as polyethylene, polypropylene, polyamide and polystyrene-butadiene copolymer, butyl rubber, EPDM, acrylonitrile-butadiene copolymer, fluororubber and silicone rubber are preferable. Is. Among these, silicone polymers and fluoropolymers having a low refractive index are particularly preferable.

The core may be any as long as it has a higher refractive index than the flexible tube and is transparent, but normally, a liquid, solid or gel form is used. As the liquid or gel core, polyols such as polyethylene oxide, polypropylene oxide and glycerin,
Polyol ester, polyol ether, phosphoric acid ester such as chloroethyl phosphate, dichloropropyl phosphate, liquid paraffin, fluorine oil, silicone oil, polyisobutylene, polysiloxane modified polyether, aqueous solution of inorganic salt, polymer in a suitable solvent A diluted polymer solution or the like is suitable. In addition, as the solid core, there is polymethylmethacrylate or the like.

When the core is liquid or gel, both ends of the flexible tube may be covered with a transparent material such as glass or quartz so as not to leak from the flexible tube. In addition, a method of inserting a solid core into a flexible tube is to put a synthetic resin monomer in the flexible tube and polymerize it in a flexible tube held in an appropriately shaped state. Good. A preferable example of such a tubular luminous body is Ray Duck Light manufactured by Bridgestone Corporation.

The tubular luminous body in the present invention is inserted into the through hole of the transparent elongated body. In this insertion method, a through hole is formed in the central portion of the transparent elongated body in the longitudinal direction, or a transparent elongated body having a through hole in the longitudinal direction is manufactured in advance, and the tubular luminous body is placed in the through hole. It may be inserted, or the synthetic resin may be formed into a long body while inserting the tubular light-emitting body. It is also possible to manufacture a component having a shape divided into a plurality of pieces in the longitudinal direction and join the components while inserting the tubular light-emitting body therein.

In the present invention, the transparent elongated body is embedded in the road surface indication portion of the road with the upper side surface being exposed to the road surface.
In particular, in order to prevent the tubular luminous body from breaking easily, the transparent elongated body is embedded in the road surface by inserting the lower side into a fixture made of a material having high mechanical strength such as metal. At this time, insert the lower side of the protruding strip of the transparent elongated body into the recess of the metal fixture, and press the protruding strip of the transparent elongated body with the locking piece that is detachably attached to the metal fixture. It is preferable to detachably attach the transparent elongated body to the metal fixture because the locking piece can be removed and replaced when the tubular luminous body or the transparent elongated body is damaged or damaged.

At this time, as in the second aspect of the invention, in order to efficiently irradiate the light emitted from the tubular light-emitting body upward, a reflector is provided between the metal fixture and the transparent elongated body. It is preferably attached. In particular, it is preferable to attach this reflecting plate so as to face the traveling vehicle because it is easy for a driver driving the vehicle to see. As the metal fixtures used at this time, aluminum fixtures, iron fixtures,
A stainless fixture or the like is preferable. Particularly, an aluminum fixture is preferable because it is hard to rust and reflects light well.

In the present invention, the tubular luminous body is extended from the display body and is attached so that its end face faces the light source provided at the side edge of the road. At this time, one end surface of the tubular light-emitting body may be attached to the light source, or both end surfaces may be attached to the light source. In particular, it is preferable to attach the end faces of both ends to the light source so that light enters the tube-shaped light emitter from both ends and the road surface display portion of the tube-shaped light emitter shines brightly and uniformly.

In the present invention, a coloring filter that works in conjunction with a traffic light is provided between the light source and the end face of the tubular light-emitting body. Then, embed the display in front of the pedestrian crossing, near the roadside band, near the curb, etc., when the traffic light at the intersection is red, the coloring filter is red, and when the traffic light is blue, it is colored. Make the filter blue. Then, the front side of the pedestrian crossing lights up in red or blue, so that the driver of the vehicle can see the color of the signal even when the signal is hard to see due to the shadow of a large vehicle. In this way, as a method of providing a colored filter that interlocks with the traffic light, you can replace the red, blue, and yellow colored filters by interlocking with the traffic light,
It is advisable to attach red, blue, and yellow filters in a disk shape, and rotate the disk with a drive that is linked to the traffic light to change the color of the filter.

In the present invention, the side surface of the tube-shaped light emitting body of the extended portion extended from the display body is coated, but this coating is preferably an aluminum foil having a high light reflectance.

[0016]

The tubular luminous body used in the present invention comprises a flexible tube and a core having a higher refractive index than the flexible tube accommodated in the flexible tube.
When the light enters from the end surface, the light traveling from the core to the flexible tube side is totally reflected by the boundary surface between the flexible tube and the core, and the light efficiently reaches a distant place. Moreover, in the present invention, since the side surface of the tube-shaped light emitting body of the extended portion extended from the display body is covered, the light leaked from the tube-shaped light emitting body is reflected by this coating, and the tube-shaped light emitting body again. It goes inside and does not go outside. In other words, the light comes out only from the upper side surface of the tubular luminous body in the display body. Therefore, the display body shines brightly from the upper side surface.

Since the display body used in the present invention is embedded in the road surface display portion of the road in a state where the upper side surface is exposed on the road surface, the display body is wide from the upper side surface exposed on the road surface. It is illuminated at an angle and can be easily seen from the side. Further, in the present invention, since the colored filter which is interlocked with the traffic light is provided between the end surface of the tubular light-emitting body and the light source, for example, the display body is in front of the pedestrian crossing, near the roadside strip, near the curb, etc. If it is installed at the road surface display point, if the traffic light at the intersection is red, the road surface display area will light up in red in conjunction with this traffic light, and if the traffic light is blue, it will glow blue, so even if you do not look up at the traffic light Even if the signal is hard to see due to an obstacle, the vehicle driver can see the color of the signal.

The display body used in the present invention is a hard transparent elongated body, a tubular luminous body inserted into the through hole of the transparent elongated body, and a metal fixture having a recess on the upper surface. The lower side of the protruding strip of the transparent elongated body is inserted into the recess of the metal mounting tool, and the protruding strip of the transparent elongated body is pressed by the locking piece that is detachably attached to the metal mounting tool. Since the transparent elongated body is detachably attached to the metal fixture, the tubular light-emitting body and the transparent elongated body are protected by the metal fixture and are less likely to be destroyed. At the same time, by attaching and detaching the locking piece, the transparent elongated body can be attached or detached, and when the transparent elongated body or the tubular luminous body is damaged or damaged, it can be easily replaced.

According to the second aspect of the present invention, since the reflecting plate is attached between the metallic fixture and the transparent elongated body,
The light emitted to the lower side is reflected by this reflecting plate, and the upper side surface of the display body, which serves as a light emitting road surface display, shines brighter.

[0020]

Next, embodiments of the present invention will be described. 1 to 3 show an embodiment of the present invention, FIG. 1 (a) is an explanatory view showing a usage state of a light emitting road surface display device, (b) is an enlarged sectional view taken along line AA, and FIG. 2 is a traffic light. And FIG. 3 is a front view of the coloring filter. FIG. 3 is a front view of the coloring filter. FIG. 4 shows another embodiment of the present invention, an explanatory view showing a usage state of the light emitting road surface display device, and FIG. 5 shows another embodiment of the present invention, an explanatory view showing a usage state of the light emission road surface display device. is there.

First, the embodiment shown in FIGS. 1 to 3 will be described. 1 to 3, reference numeral 1 denotes a light emitting road surface display device, and the light emitting road surface display device 1 includes a display body 2, a light source 85, and a coloring filter 7.

The display body 2 comprises a transparent elongated body 3, a tubular luminous body 4 and a metal fixture 5 made of aluminum. The display body 2 is located on the upper side of the road 9 before the pedestrian crossing 91. It is clearly buried in the road surface of No. 9. The transparent elongated body 3 is a transparent polycarbonate resin elongated body, and is shown in FIG.
As shown in (b), the cross section has an elliptical shape whose upper side surface is substantially flat, and protruding ridges 32 are provided in the longitudinal direction on both side surfaces, and a through hole 31 having a circular cross section is provided in the longitudinal direction at substantially the center. .

In the tubular luminous body 4, a core 42 is housed in a flexible tube 41 having an outer diameter of 16 mm, which is composed of two layers of a transparent fluororesin tube and a transparent vinyl chloride resin tube. It was blocked with quartz glass. The display body 2 is placed in the through hole 31 of the transparent elongated body 3 as shown in FIG.
As shown in (b), the tubular light-emitting body 4 is inserted.

The metallic fixture 5 has a main body 52 having a recess 51 elongated in the longitudinal direction on the upper surface thereof, and a locking piece attachment portion that is flat on both sides of the recess 51 and has its tip raised upward. 54, and the locking piece mounting portion 54 is provided with screw holes 55 in places along the longitudinal direction. Reference numeral 56 denotes a locking piece made of an elongated body having a rectangular cross section, and through holes 57 are provided at almost central portions of the locking piece 56 along the longitudinal direction. Reference numeral 58 is a reflector.

Then, in the display body 2, the reflection plate 58 is inserted into the recess of the metal fixture 5, the transparent elongated body 3 is inserted from above, and the through hole 57 of the locking piece 56 and the screw 59 are inserted. Is screwed into the screw hole 55 of the metal fixture 5, and the locking piece 56 pushes the protruding strip 32 of the transparent elongated body 3 from above to allow the transparent elongated body 3 to move.
Is detachably attached to the metal fixture 5. Reference numeral 6 denotes a control box provided on the side edge of the road 9. Inside the control box 6, a light source 85 and a lens 6 are provided.
2. A coloring filter 7 is provided.

The tube-shaped light-emitting body 4 of the display body 2 is extended to the side edge of the road 9, the end of the tube-shaped light-emitting body 4 is guided into the control box 6, and the end face 43 is directed toward the front surface of the lens 62. It is installed. Then, between the end face 43 of the tubular light-emitting body 4 and the light source 85, as shown in FIG. 4, a coloring filter 7 made of a transparent disk made of three colors of red, blue and yellow is provided. . Therefore, the light emitted from the light source 85 is collected by the lens 62, passes through the coloring filter 7 and enters the tube-shaped light emitting body 4 from the end face 43. The coloring filter 7 is driven by a motor 71.

Reference numeral 8 denotes a traffic light, and the traffic light 8 is adapted to change to red, blue, and yellow after a predetermined time has passed by the controller 81. When the color of the traffic signal 8 changes, the traffic signal control circuit 8 is changed according to the circuit diagram shown in FIG.
1. The motor 71 is operated by the traffic light color filter relay circuit 82 and the color filter circuit 83 so that the portion of the colored filter 7 having the same color as the traffic light 8 enters between the end surface 43 of the tubular light-emitting body 4 and the light source 85. Has become. Therefore, for example, when the traffic light 8 becomes red, the light transmitted through the red portion of the colored filter 7 is emitted from the display body 2, and the light of the display body 2 is linked to the traffic light 8 so that the display body 2 shines in the same color. Has become. The side surface 45 of the tubular light-emitting body 4 extended from the display body 2 is covered with aluminum foil.

Next, a method of using the light emitting road surface display device 1 will be described. A control is provided in which a groove is provided on the road surface before the pedestrian crossing 91, the display body 2 is embedded in the groove, and the tubular light-emitting body 4 extending from the display body 2 is provided at the side edge of the road 9. The colored filter 7 is introduced into the box 6 and the end face 43 of the tubular light-emitting body 4 is directed toward the light source 85.
Install in front of. Then, the display body 2 is fixed so that the upper side surface of the display body 2 is exposed from the road surface. On the other hand, traffic signal 8, traffic signal control circuit 81, traffic signal color filter relay circuit 82, color filter circuit 83, motor 71
Wire to.

When the display body 2 is embedded in this way, the tubular light-emitting body 4 will not be crushed or damaged even when a vehicle or the like passes over it. When the traffic light 8 becomes red, blue, or yellow, the traffic light control circuit 81, the traffic light color filter relay circuit 82, and the color filter circuit 83 operate,
The motor 71 rotates the coloring filter 7 so that the coloring filter between the end face 43 of the tubular light-emitting body 4 and the light source 85 is linked to the red, blue and yellow colors, and the red portion which is the same color as the traffic light 8, Use blue and yellow areas. Then, the side surface of the display body 2 exposed on the road surface before the pedestrian crossing 91,
Brightly shines red, blue, and yellow in conjunction with traffic light 8.

Next, the embodiment shown in FIG. 4 will be described. In the embodiment shown in FIG. 4, the light emitting road surface display device for a crossing road is used, and a signal provided on the traffic light 8a and a display provided near the stop line facing the traffic light 8a. The body 2a is interlocked with each other, and the traffic light 8b and the display body 2b provided near the stop line facing the traffic light 8b are interlocked with each other. The structure and operation of this light emitting road surface display device are the same as those of the light emitting road surface display device 1 shown in FIGS.

Next, the embodiment shown in FIG. 5 will be described. Compared with the embodiment shown in FIG. 4, the embodiment shown in FIG. 5 is different in that the display bodies 2c and 2d are provided in the vicinity of the curb 95 of the road. Others are the same as the embodiment shown in FIG. In this way, if it is installed near the curbstone 95, the driver of the vehicle will be in front of the intersection, and the traffic signal 8
It is convenient because you can see the colors of c and 8d. Others are the same as those in the embodiment shown in FIG.

[0032]

The tubular luminous body used in the present invention is
As can be seen from the above description, the flexible tube and the core having a higher refractive index than the flexible tube housed in the flexible tube facilitate the passage of light entering from the end face. A lot of light is radiated from the side surface of the tubular luminous body. Since the display used in the present invention is embedded in the road surface display portion of the road in a state where the upper side surface is exposed on the road surface, a lot of light emitted from the tubular light-emitting body is displayed on the road surface of the display. It shines brightly at a wide angle from the side exposed. Therefore, a person passing through the road can easily see it from a distance.

Further, in the display body, the tube-shaped light emitting body is inserted into the through hole of the hard transparent elongated body having the through hole provided in the longitudinal direction, and the transparent elongated body is detachably attached to the metal fixture. Since it is attached, even if a vehicle etc. passes over the display and is subjected to an impact, the tube-shaped light emitting body is protected by the transparent elongated body and the metal fixture so that it is difficult to destroy and at the same time the tube-shaped light emitting body is If the transparent long body is damaged or damaged, it can be easily replaced.

Further, since a coloring filter interlocking with a traffic light is provided between the end surface of the tubular light-emitting body and the light source, for example, the display body is located in front of a pedestrian crossing, near the roadside strip,
If it is installed at a road surface display area such as near a curb, when the traffic light at the intersection is red, the front of the pedestrian crossing etc. will glow red when the traffic light is red, and if the traffic light is blue, look up at the traffic light. Even if it is not necessary, or even if it is difficult to see the traffic light ahead because it is blocked by a large vehicle or the like, it is convenient for the driver of the vehicle to know the color of the traffic light.

According to the second aspect of the present invention, since the reflector is attached between the transparent elongated body and the metal fixture, the light emitted to the lower side is reflected by the reflector and is reflected from the upper side surface. Get out,
The light emitting road surface display of the display body becomes brighter and is easy to visually recognize.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, (a) is an explanatory view showing a usage state of a light emitting road surface display device, and (b) is an enlarged sectional view taken along line AA.

FIG. 2 is a circuit diagram showing a circuit in which a traffic light and a coloring filter work together.

FIG. 3 is a front view of a coloring filter.

FIG. 4 is an explanatory view showing another embodiment of the present invention and showing a usage state of the light emitting road surface display device.

FIG. 5 is an explanatory view showing another embodiment of the present invention and showing a usage state of the light emitting road surface display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Light emitting road surface display device 2, 2a, 2b, 2c, 2d Display body 3 Transparent long body 31 Through hole 4 Tubular light emitting body 41 Flexible tube 42 Core 43 End surface 5 Metal mounting tool 51 Dimple 56 Locking piece 58 Reflection Board 6 Control box 7 Coloring filter 8, 8a, 8b, 8c, 8d Traffic light 85 Light source 9 Road 91 Crosswalk

Claims (2)

[Claims] 1. A light-emitting road surface display device comprising a display body, a light source, and a coloring filter, wherein the display body is a hard transparent material having a through hole in the longitudinal direction and a projecting strip in the longitudinal direction on the outer peripheral side surface. The elongated body, a tubular light-emitting body inserted into the through hole of the transparent elongated body, and a metal fixture made of the elongated body having a long recess in the longitudinal direction on the upper surface, The lower side of the protruding strip of the transparent elongated body is inserted into the recess of the mounting bracket, and the protruding strip of the transparent elongated body is pressed by the locking piece that is detachably attached to the metal mounting bracket so that the metal mounting A transparent elongated body is detachably attached to the tool, and the tubular luminous body has a refractive index higher than that of the flexible tube and the flexible tube housed in the flexible tube. It consists of a high core, and the display is transparent and long at the road surface display area. The upper side of the body is exposed and embedded in the road surface, and the tubular luminous body in the display body is extended from the display body and its end face is attached to the light source provided at the side edge of the road, A light emitting road surface display device interlocked with a traffic light, wherein the colored filter interlocking with a traffic light is provided between an end surface of the light emitter and a light source, and a side surface of a tubular light emitter in an extended portion extended from the display is covered. 2. A light emitting road surface display device interlocked with a traffic light according to claim 1, wherein a reflector is provided between the transparent elongated body and the metal fixture.