KR20240043844A - Floor type traffic light for crosswalk - Google Patents

Abstract

The present invention relates to a floor traffic light for a crosswalk, comprising: an enclosure-type case with an open top; A light source housing built into the case; An LED module built into the light source housing; A plurality of optical fibers installed in a bundle form in front of the LED module; A clamp clamping one end of the optical fibers; Optical fiber holders fitted to the other ends of the optical fibers, respectively; A mounting base installed horizontally on the upper part of the case and through which the optical fiber holder is mounted; and a light-transmitting cover installed on the upper part of the case to transmit light and shield the mounting base, and providing illumination light through an optical fiber.

Description

Floor traffic light for crosswalk {Floor type traffic light for crosswalk}

The present invention relates to a floor signal light for a crosswalk, which is installed on the floor of a roadway or sidewalk, or on a fence, wall, or guardrail adjacent to the road, and emits illumination light of a set color.

Generally, floor traffic lights for crosswalks are installed on driveways, sidewalks, or fences, walls, or guardrails adjacent to these roads and emit illumination light to warn of safety, or they emit illumination light in conjunction with traffic lights.

Recently, floor traffic lights that are installed on the sidewalk side of a crosswalk and are linked in the same color as the crosswalk traffic lights are becoming popular. These floor traffic lights are equipped with LED lamps and emit light of the same color as the traffic lights through the LED lamps. However, since these floor traffic lights are buried in the ground, heat dissipation is not smooth, which shortens the lifespan of the LED. To solve this problem, floor traffic lights for crosswalks using optical fiber are being developed, as shown below.

Republic of Korea Patent Registration No. 10-928740 (SL Tech) includes a coupling unit that is physically coupled to a cable of an external system to which a predetermined driving signal is applied and generates a tuning signal coupled to the driving signal; A Braille sidewalk block that has a built-in light source emitting light and a protruding pattern of a transmissive material through which the light generated from the light source passes through is formed along one side and is installed on the floor so that the one side is exposed to the outside; and a control unit that has a built-in battery and is electrically connected to the coupling unit and the light source to selectively turn on/off the charging power of the battery to the light source according to the coupling signal, wherein the coupling unit includes the cable. We provide a light-emitting braille sidewalk block system that is a metal clip that adheres closely to the outer surface of the and has a built-in coil. As shown in Figure 1, this prior art guides the illumination light of the LED to the upper part of the sidewalk block through an optical fiber to emit the illumination light. Therefore, this prior art luminous Braille sidewalk block system has the advantage of increasing the identification of the Braille sidewalk block and displaying various additional information more clearly. In other words, according to the present invention, the user can more clearly check the Braille sidewalk blocks not only through the sense of touch but also through the light, and can know the operation status of the traffic light and the fact that the subway is entering through whether the light is on or off. In addition, it is possible to have a light-emitting function linked to external systems such as traffic lights and subway signs, and in particular, the coupling part has the advantage of being simple to install without separate electrical wiring work. In addition, since it implements low-power, uniform brightness, it has the advantage of providing a more beautiful lighting function while not obstructing the vehicle driver's field of view.

On the other hand, Republic of Korea Patent Publication No. 10-2017-0115887 (Heo Myung-sook) discloses a lighting device for identifying a crosswalk crossing a paved road surface, which is arranged to be depressed at a certain depth in the paved road surface along the crosswalk. A lower cover fixed to the bottom of the unit; An inner body seated on the upper surface of the lower cover and having a plurality of vertical ribs to form first and second tertals open at both ends in the longitudinal direction; a connector that connects the inner tube to another adjacent inner tube, and has an illumination source that generates light when power is applied to provide light to one end of the optical fiber disposed in the first tunnel of the inner body; And it provides a crosswalk lighting device, comprising an upper cover that covers and protects the upper part of the inner body and the connecting body and diffuses the light generated from the optical fiber to the outside. In this other prior art, as shown in FIG. 2, the illumination light generated from the optical fiber is emitted through the upper cover, so as shown in FIG. 3, it is installed on the roadway adjacent to the crosswalk and displays the illumination light linked to the traffic light to vehicles or pedestrians. do. Therefore, in the other prior art described above, the lower cover is fixed to an arrangement recessed in the road pavement where the crosswalk is provided, and an inner body having an optical fiber between the lower cover and the upper cover is installed, as well as an inner body adjacent to each other. By providing a lighting source that provides light to the optical fiber while connecting to each other, the light generated from the lighting source is transmitted to the optical fiber, and the light passing through the optical fiber is irradiated to the outside through the inner body and upper cover to brightly illuminate the surrounding area of the crosswalk. Therefore, pedestrians walking on the crosswalk in rainy weather or at night, or drivers with awnings driving on the road, can more easily identify the crosswalk and prevent safety accidents. In addition, by embedding the inner body and connector in the internal space between the upper and lower covers, the optical fiber of the inner body and the lighting source of the connector can be safely protected from the external environment and maintained clean at the same time, extending the service life. , maintenance costs of equipment can be reduced. In addition, by separating the upper cover assembled on the lower cover, the inner body and connecting body can be easily separated and pulled out to the outside, making it easier and faster to replace optical fibers and lighting sources when they are broken or repaired. .

On the other hand, Republic of Korea Patent Publication No. 10-2013-0005437 (Dongseo Kiyeon) discloses a lighting device (1000) for buried floor fixed to the hollow portion (610) of the floor finishing material (600), wherein the floor finishing material (600) ) Is provided perpendicular to the body (100), including a tube portion (110) in the form of a hollow tube and an inclined portion (120) formed at an angle to increase the diameter at the upper end of the tube portion (110); A lens 200 that is press-fitted into the inside of the body 100 on the side where the inclined part 120 is formed and has a concave seating groove 210 formed on the side where the tube part 110 is formed; a resin layer 300 formed on a side of the body 100 on which the seating groove 210 is not formed so as to be flush with one side of the body 100 where the inclined portion 120 is formed; A lighting module 400 that is inserted and fixed into the tube portion 110 of the body 100 so that the light emitting portion is located in the seating groove 210; And a fixing means 500 fixed to the pipe part 110 at the lower side of the floor finishing material 600; It provides a lighting device for buried in the floor, characterized in that it includes. In another prior art, as shown in FIG. 4, an optical fiber is installed and the lighting module emits the illumination light of the optical fiber. Accordingly, another prior art described above has the advantage of being able to safely bury the lighting module in the ground and improving durability and assembly by forming the body, lens, and resin layer. In particular, it is a simple structure in which the body is formed including an inclined portion and is fixed by fastening with a fixing means on the lower side of the floor finishing material. The structure is simple and the installation process is simple, which has the advantage of increasing productivity and installation efficiency. In addition, the resin layer is formed to be flush with one side of the body where the inclined portion is formed, thereby forming a floor portion together with the floor finishing material, and reducing the possibility of gaps occurring due to the use of different materials for the body and lens. Accordingly, there is an advantage in solving the problem of the durability and the amount of light being reduced due to the occurrence of a gap. In addition, as the inside of the inclined portion of the body is sanded, the light emitted by the lighting module is diffusely reflected, forming a soft light on the upper part of the body, which has the advantage of being easily used as floor lighting. In addition, the hollow part can be easily formed by forming the first hollow part and the second hollow part in the floor finishing material through two steps, and has the advantage of being able to be evenly installed in various types.

However, in the case of the above-described prior art, as it is manufactured in the form of a sidewalk block, visibility may be reduced due to being shielded from pedestrians' feet, and in the case of the other prior art described above, as shown, the illumination light is emitted through the side of the optical fiber, so the illuminance is lowered. Because it is too low, visibility may be reduced, and in the case of another prior art described above, as shown, illumination light is emitted through a single optical fiber, so visibility may be reduced because the illuminance is too low.

Republic of Korea Patent Registration No. 10-928740 (SL Tech Co., Ltd./registered on November 19, 2009) Republic of Korea Patent Publication No. 10-2017-115887 (Heo Myung-sook/published on October 18, 2017) Republic of Korea Patent Publication No. 10-2013-5437 (Dongseo Giyeon Co., Ltd./ 2013.01.16)

The present invention was created to solve the above-mentioned problems. Since it uses a large number of optical fibers, the illumination light can be turned on with only a few LEDs, the illumination light is emitted through the ends of the optical fibers, and the illumination light emitted from the optical fibers can be diffused. The purpose is to provide floor traffic lights for crosswalks.

The floor traffic light for a crosswalk of the present invention to achieve the above-mentioned purpose,

Enclosure-type case with an open top;

A light source housing built into the case;

An LED module built into the light source housing;

A plurality of optical fibers installed in a bundle form in front of the LED module;

A clamp clamping one end of the optical fibers;

Optical fiber holders fitted to the other ends of the optical fibers, respectively;

A mounting base installed horizontally on the upper part of the case and through which the optical fiber holder is mounted; and

It includes a light-transmitting cover installed on the upper part of the case to transmit light and shield the mounting base.

The present invention further includes a diffusion sheet installed on the top of the mounting table, shielded by the light transmitting cover, and laterally diffusing illumination light from the other end of the optical fiber fixed to the optical fiber holder.

As described above, the present invention can reduce the amount of heat generated by the LEDs by emitting light from a large number of optical fibers with a small number of LEDs, and improve visibility due to the illumination light because the illumination light is emitted through the ends of the optical fibers. Since the illumination light is diffused through the diffusion sheet, the illumination light can be spread evenly.

Figure 1 is a longitudinal cross-sectional view of a floor signal light for a crosswalk according to the prior art;
Figure 2 is a longitudinal cross-sectional view of a floor signal light for a crosswalk according to another prior art;
Figure 3 is a perspective view showing the installation state of the floor traffic light for the crosswalk shown in Figure 2;
Figure 4 is a longitudinal cross-sectional view of a floor signal light for a crosswalk according to another prior art;
Figure 5 is a longitudinal cross-sectional view of a floor signal light for a crosswalk according to an embodiment of the present invention;
Figure 6 is an exploded longitudinal cross-sectional view of some components shown in Figure 5;
Figure 7 is a plan view of the mounting base shown in Figure 5;
Figure 8 is a conceptual diagram showing another embodiment of the floor traffic light for a crosswalk shown in Figure 5; and
Figure 9 is a longitudinal cross-sectional view showing another embodiment of the floor traffic light for a crosswalk shown in Figure 5.

Hereinafter, a floor signal light for a crosswalk according to an embodiment of the present invention will be described with reference to the attached drawings.

As shown in FIG. 5, the floor traffic light for a crosswalk according to an embodiment of the present invention includes a case 50, a light source housing 61, an LED module 62, an optical fiber 63, a clamp 64, and an optical fiber holder. (65), includes a mounting base (70) and a flood cover (80).

Case 50 is composed of a case with an open top as shown in FIG. 5. The case 50 is preferably comprised of a rectangular enclosure.

The light source housing 61 is built into the case 50 as shown in FIG. 5. The light source housing 61 is composed of a block or cylinder with a hollow body. As shown, the lower part or one side of the light source housing 61 is fixed to the bottom or inner wall of the case 50 by bolting or bonding. The light source housing 61 may be installed to be spaced apart from the bottom of the case 50, as shown, so that the inside of the case 50 circulates outward.

The LED module 62 is composed of a normal board on which a plurality of LEDs are mounted, is built into the light source housing 61 and is integrally fixed inside the light source housing 61, and has a normal board on the front of the board on which the LEDs are mounted. A lens can be installed. The rear of the LED module 62 may be sealed with a typical silicone cover. The LED module 62 may have, for example, 5 to 15 LEDs mounted thereon.

As shown in FIG. 5, the optical fibers 63 are composed of a large number to form a bundle. The optical fibers 63 are installed in a bundle form in front of the LED module 62, as shown. One end of the optical fiber 63 is fixed with liquid acrylic or resin so that one end is clamped by a clamp 64, which will be described later.

Clamp 64 clamps one end of the optical fibers as shown in FIG. 5. That is, the clamp 64 clamps one end of the optical fiber bundle. The clamp 64 is preferably configured in a ring shape to clamp one end of the optical fiber bundle as if bundled optical fibers are integrated. As shown, the clamp 64 is built into the light source housing 61 and is integrally fixed to the inside of the light source housing 61.

As shown in FIGS. 5 and 6, the optical fiber holder 65 is configured in the form of a hollow tube and is inserted into the other end of the optical fibers 63, respectively. As shown, the optical fiber holder 65 is inserted through the optical fiber 63. As shown, the optical fiber holder 65 is formed with a notch in the form of a cut groove at the end so that the end can be easily inserted into the through hole of the mounting base 70, which will be described later. Accordingly, the optical fiber holder 65 is easily inserted into the through hole of the mounting base 70 as the outer diameter (width) of the end is varied by the notch, and then is easily fixed by pressure fitting.

The mounting base 70 is installed horizontally on the upper part of the case 50, as shown in FIG. 5. As shown, the mounting base 70 is supported by being seated on a step or protrusion formed on the inner upper part of the case 50, and is fixed to the upper part of the case 50 by bolting or bonding. As shown in FIG. 7, the mounting base 70 may be composed of a plate-shaped member provided with a plurality of through holes. As shown in FIGS. 5 and 6, the mounting base 70 is integrated with the optical fiber 63 as the optical fiber holder 65 is inserted and fixed into the through hole. At this time, as shown, the other end of the optical fiber 63 is directed toward the light transmitting cover 80, which will be described later. Accordingly, the optical fiber 63 emits the illumination light of the LED to the light transmitting cover 80.

As shown, the light-transmitting cover 80 is installed on the upper part of the case 50 to transparently shield the mounting base 70. The light-transmitting cover 80 may be made of a translucent or transparent material. As shown, the flood cover 80 is supported on a protrusion or step protruding from the top of the case 50, and is fixed to the top of the case 50 by bolting or bonding. The flood cover 80 may be sealed with conventional packing (not shown) to prevent moisture from entering the case 50.

Meanwhile, the case 50 may be equipped with a diffusion sheet 90 as shown in FIG. 5 . As shown, the diffusion sheet 90 is installed on the upper part of the mounting base 70 and is shielded by the light transmitting cover 80. The diffusion sheet 90 guides the illumination light from the other end of the optical fiber 63 fixed to the optical fiber holder 65 to the side of the optical fiber 63. Accordingly, the optical fiber 63 can laterally diffuse the illumination light emitted through the other end.

In the floor traffic light for a crosswalk according to an embodiment of the present invention configured as described above, the illumination light of the LED built into the light source housing 61 is irradiated to one end of the optical fiber 63 clamped to the clamp 64. Accordingly, the optical fiber 63 guides the illumination light of the LED to the other end inserted into the optical fiber holder 65, and emits the illumination light through the other end. Accordingly, the optical fiber 63 generates illumination light through the light transmitting cover 80.

The optical fiber 63 is inserted into the optical fiber holder 65 and fixed to the mounting table 70 through the optical fiber holder 65, so that it is stably fixed to the mounting table 70. Therefore, the optical fiber 63 does not come off the mounting base 70 even when vibration occurs in the light transmitting cover 80.

The floor traffic light for a crosswalk according to an embodiment of the present invention may be installed as a single number, but, alternatively, as a plurality, it may be installed in series. In this case, embodiments of the present invention can provide illumination light in a row.

The floor traffic light for a crosswalk according to the embodiment of the present invention as described above uses 20 or less LEDs, so heat generation can be reduced. In other words, since a small number of LEDs are used, the shortening of the LED lifespan due to heat generation can be prevented as much as possible. In addition, since the optical fiber 63 is mounted on the mounting table 70 through the optical fiber holder 65, the optical fiber 63 can be stably fixed to the mounting table 70, and the LED is connected through the other end of the optical fiber 63. Since illumination light is emitted, visibility can be improved. In addition, when the diffusion sheet 90 is provided, the illumination light emitted from the other end of the optical fiber 63 can be evenly diffused laterally, thereby further improving the luminous efficiency of the LED.

Meanwhile, in an embodiment of the present invention, as shown in FIG. 8, an auxiliary lighting light 40 that emits illumination light or warning light corresponding to the signal of the traffic light in conjunction with the above-described crosswalk floor traffic light may be installed. . These auxiliary lighting lights 40 may be configured in the form of a bollard having a pillar as shown, or may be installed on a sidewalk fence (not shown).

As shown in FIG. 8, the auxiliary lighting lamp 40 is provided with a lighting unit 41 on one side that emits lighting light. The lighting unit 41 emits traffic light signals or warning illumination light as described above. This lighting unit 41 preliminarily guides traffic light signals to vehicles driving on the crosswalk or pedestrians approaching the crosswalk, or emits a warning signal that crossing is impossible due to the location or time of the crosswalk. In addition, the lighting unit 41 may display a yellow light indicating that the blue signal of the crosswalk signal will soon be turned off.

As shown, the auxiliary lighting 40 detects pedestrians through the sensor S and guides the vehicle to the presence or absence of pedestrians through the lighting unit 41, or provides a warning light or preliminary signal to prevent pedestrians from walking excessively. Corresponding illumination light can be provided.

The auxiliary lighting 40 includes the lighting unit 41 and/or the sensor S described above and is installed along the sidewalk fence. In this case, the auxiliary lighting 40 replaces the role of the fence bollard. Alternatively, the auxiliary lighting 40 may have the above-described components attached to peripheral structures such as traffic lights or street lights around a crosswalk.

The auxiliary lighting 40 may be installed with a floodlight (not shown) that radiates illumination light to the crosswalk. This floodlight may be provided integrally with the lighting unit 41 described above, or may be installed at the lower end of the pillar in the case of a bollard type. Floodlights emit illumination light onto the crosswalk when pedestrians do not cross, guiding vehicles to the location of the crosswalk. Therefore, drivers can recognize crosswalks from a distance.

On the other hand, in the floor traffic light for a crosswalk according to an embodiment of the present invention, some of the above-described optical fibers may emit different illumination light. For example, some optical fibers may emit illumination light corresponding to a traffic light, while others may emit other colors such as yellow illumination light. These different colors may be warning lights that warn that crossing time is insufficient because the currently lit signal will soon be extinguished.

As shown in FIG. 9, some of these floor traffic lights for crosswalks may be composed of LEDs (L) and others may be composed of optical fibers. In this case, one of the optical fiber or the LED (L) emits illumination light corresponding to a traffic light, and the other emits another light such as the above-mentioned warning light.

Therefore, pedestrians can recognize various situations through various lighting lights and thus can cross the crosswalk more safely.

Since the above-described embodiments only describe preferred embodiments of the present invention, the scope of application of the present invention is not limited to this, and if the essential features can be satisfied, appropriate modifications (structure or configuration) can be made within the scope of the same idea. Changes, partial omissions, or supplements) are possible. Additionally, some or many of the features of the above-described embodiments may be combined with each other. Accordingly, since the structure and configuration of each component shown in the embodiments of the present invention can be implemented by modification or combination, it is natural that modifications or combinations of such structures and configurations fall within the scope of the appended claims of the present invention.

40: Auxiliary lighting
41: lighting unit
50: case
61: Light source housing
62: LED module
63: optical fiber
64: clamp
65: optical fiber holder
70: Mounting stand
80: Flood cover
90; diffusion sheet

Claims (2)

Enclosure-type case with an open top;
A light source housing built into the case;
An LED module built into the light source housing;
A plurality of optical fibers installed in a bundle form in front of the LED module;
A clamp clamping one end of the optical fibers;
Optical fiber holders fitted to the other ends of the optical fibers, respectively;
A mounting base installed horizontally on the upper part of the case and through which the optical fiber holder is mounted; and
A floor traffic light for a crosswalk including a light-transmitting cover installed on the upper part of the case to transmit light and shield the mounting base. According to claim 1,
A floor traffic light for a crosswalk further comprising; a diffusion sheet installed on an upper part of the mounting table, shielded by the light-transmitting cover, and laterally diffusing illumination light from the other end of the optical fiber fixed to the optical fiber holder.

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