JP2012026160A - Light-emitting sign body for road - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light-emitting sign body for road with a high eye-catching property.SOLUTION: A light-emitting sign body for road includes: plural light-emitting members; a controller for controlling power supply to the light-emitting members; a light-passing member for allowing light emitted from the light-emitting members to pass therethrough and externally radiate; and a body for accommodating the light-passing member, the plural light-emitting members and the controller. The body has: a truncated conical form; plural windows arranged over an entire circumferential surface of the body; the transparent member attached inside the windows to allow the light from the light-emitting members to pass therethrough and externally radiate through the windows. When vehicle wheels etc. ride on the light-emitting sign body for road, the wheel comes into contact with the body, not directly with the light-passing member attached inside the windows, thereby suppressing damage to the light-passing member or breakage thereof and allowing the light from the light-emitting members to externally radiate from the windows in all directions so as to be visualized.

Description

  The present invention mainly relates to a light-emitting sign for a road installed on a road surface such as a road side edge or a center line, on a curb installed on a road side edge, or on a median strip.

  Various inventions have been disclosed for light-emitting indicators for roads that allow a driver of a vehicle to visually recognize the light from an interior light-emitting body and recognize the shape of a road and the presence of an installation.

  For example, in Patent Document 1, a translucent body is attached to the upper part of the main body of the pad embedded in the road surface, and a light emitting body that emits light from a power supply device is attached below the translucent body. A roadway designed to be emitted to the outside through the light transmitting body, wherein a plurality of the light emitting bodies are arranged in a vehicle seat shape at substantially equal intervals in parallel with the road surface, and flow flashes. A self-luminous roadway is disclosed by the present applicant.

JP 2004-353440 A

  However, the self-luminous road fence shown in Patent Document 1 has a structure that is embedded in the road surface, and has a configuration in which only the light from the light emitter is used for marking. The present invention provides a light-emitting sign for roads having a high attractiveness due to a configuration different from the above.

In order to achieve the above object, the present invention is configured as follows.
That is, the light-emitting sign for a road according to the present invention includes a plurality of light emitters, a control device that controls energization of each light emitter, and a light-transmitting body that transmits light from each light emitter and emits the light to the outside. A light emitting indicator for a road comprising a main body for interiorly installing the light transmitting body, the light emitting bodies, and the control device,
The main body is formed in a truncated cone shape that is installed on the road surface and protrudes upward, and a plurality of windows are arranged in parallel along the circumferential direction on the outer peripheral side surface of the main body,
The translucent body is attached to the inside of the window portion and is provided so as to transmit light from the light emitting body and radiate outside through the window portion.

According to the light-emitting sign for road according to the present invention, a plurality of light emitters, a control device that controls energization of each light emitter, and a light-transmitting body that transmits light from each light emitter and emits the light to the outside. And a body that houses the translucent body, the light emitters, and the control device, and the body is formed in a truncated cone shape that is installed on a road surface and protrudes upward. Since a plurality of windows are arranged along the circumferential direction over the entire circumference, it can be configured so that the light from the light emitter can be radiated from the window and visible in all directions around the window.
In addition, since the main body is formed in the shape of a truncated cone, when a vehicle wheel or the like steps on a light emitting indicator for a road, the wheel comes into contact with an inclined surface provided on the outer peripheral side surface of the main body and is given an impact. Can be suppressed.
In addition, since the translucent body is attached to the inside of the window portion so as to transmit light from the light emitter and radiate to the outside through the window portion, the light emitting indicator for a road is provided on a vehicle wheel. When the vehicle is stepped on, the wheel contacts the main body and does not directly contact the translucent body attached to the inside of the window. Therefore, damage and destruction of the translucent body are suppressed, and light from the light emitting body is suppressed. Radiation can be maintained continuously.

  Further, if a groove portion along the circumferential direction is formed over the entire circumference on the outer peripheral side surface of the main body, and a reflection member having retroreflectivity of light is attached to the groove portion over the entire circumference, along with the light from the light emitter, The headlight light of the vehicle retroreflected by the reflecting member is visually recognized by the driver, and high-attraction signing by simultaneously viewing two types of light can be performed in all directions around the vehicle, which is preferable.

  Further, in the plurality of light emitters, a plurality of light emitting groups each composed of one or two or more adjacent light emitters are provided, and a lens unit that collects and emits light emitted from the light emitters to each of the light emitter groups, respectively. Each of the lens units has a lateral non-condensing portion that has a thickness as a convex lens with a thickness changed in the vertical direction and a thickness that is constant in the horizontal direction and does not have a lens shape. If formed, light in the vertical direction emitted from the light emitter is condensed by the convex lens of the lens unit and emitted to the outside, so that the light emitted to the outside becomes brighter, and drivers and pedestrians Visibility from the person to be labeled is improved. Further, the light emitted from the lateral non-condensing part is emitted in a wide range without being condensed in the horizontal direction, and passes by the side of the light-emitting sign for road installed on the road by the person to be moved. Even when trying to do so, the area where the light can be visually recognized is formed larger, and the visibility of the light-emitting sign for road is improved.

  In addition, each of the lateral non-condensing portions of each lens portion is formed with a horizontal condensing portion having a form as a convex lens by changing the thickness in the horizontal direction at both ends in the horizontal direction. If the light of the luminous body group is radiated, the light emitted from the lateral condensing part of the lens part is condensed and the horizontal irradiation range is narrowed, and the horizontal edge of the window part is reduced. Since the light that is blocked and is not emitted to the outside of the main body is collected and emitted, the light from the luminous body is efficiently emitted to the outside so that it can be visually recognized by the target person. Therefore, it is preferable.

  In addition, a cover body that covers the window portion from the inside is attached in the main body so that light from the light emitting body that passes through the window portion is transmitted through the cover body, and light that is incident on the back surface of the cover body. Is diffused by the cover body so that the entire area of the window portion is surface-emitted, and a larger area is obtained. Since visibility is improved by light emission, it is preferable.

  Further, the cover body is provided with a large number of retroreflective areas and gap areas that are not retroreflective provided around the retroreflective areas, and the gap areas diffuse light incident from the back surface. It is provided so as to transmit, and the light from the light emitter is transmitted through the gap region from the back side of the cover body and radiated to the window part, and the light from the outside of the main body is emitted from the retroreflective region. If retroreflected, the light from the light emitter can be viewed as if the entire range of the window is emitting light, and the recursion is performed for a driver of a vehicle whose headlight is turned on. Since the light retroreflected in the reflection region can be visually recognized, the light-emitting sign for roads can be visually confirmed more reliably, which is preferable.

  According to the light-emitting sign for road according to the present invention, it is possible to perform a sign with high attractiveness.

BRIEF DESCRIPTION OF THE DRAWINGS (a) is a top view and (b) is a front view which shows one Embodiment of the light emission indicator for roads concerning this invention. It is a top view which shows the state which removed the main body and the translucent body from the light emission indicator for roads of FIG. It is AA sectional drawing of FIG. FIGS. 1A and 1B are plan views, FIG. 1B is a front view, and FIG. 4A and 4B are cross-sectional views taken along the line A-A in FIG. 4, and FIG. 4B is a cross-sectional view taken along the line BB in FIG. 4. It is the longitudinal cross-sectional view of the principal part of FIG. 1 which expanded the lens part vicinity which shows the state of the radiation | emission of the light from a light-emitting body. It is the horizontal sectional view of the principal part of FIG. 1 which expanded the lens part vicinity which shows the state of the radiation | emission of the light from a light-emitting body. It is a figure explaining one form of the light emission pattern of the light-emitting body of the light emission indicator for roads of FIG. It is a figure which shows another form of implementation of the light emission indicator for roads which concerns on this invention. It is a figure which shows the horizontal cross section of the principal part which shows another form of implementation of the luminous indicator for roads which concerns on this invention. It is a figure which shows the longitudinal cross-section of the principal part of embodiment of FIG. It is an enlarged view which shows the surface of the cover body of FIG.

Embodiments of the present invention will be specifically described with reference to the drawings.
First, with reference to FIGS. 1 to 3, the overall configuration of the light-emitting sign for road according to the present invention will be described.
In the drawings, 1 is a main body.
The main body 1 of the present embodiment is made of a metal such as aluminum die cast, and has a ring-shaped upper surface portion 11, a ring-shaped lower surface portion 12 having an inner diameter larger than the outer diameter of the upper surface portion 11, and a lower surface outer edge of the upper surface portion 11. And a plurality of inclined column portions 13 integrally formed so as to be bridged between the upper surface inner edge of the lower surface portion 12, and in this embodiment, formed in a truncated cone shape composed of eight inclined column portions 13. Has been.
The inclined column portions 13 are arranged at equal intervals to form the outer peripheral side surface of the main body portion 1, and a plurality of window portions 14 opened between eight adjacent inclined column portions 13, a total of 8 in this embodiment. A plurality of window portions 14 are provided.
A plurality of protrusions 17 are provided radially on the upper surface of the upper surface portion 11. By providing the projections 17, even if it rains and water is applied, water and dust are unlikely to accumulate on the upper surface of the main body 1, and easily flow toward the outside. Each protrusion 17 of this embodiment is formed in a radial shape with a rotation angle of 5.6 degrees and a height of 0.5 mm. However, the present invention is not limited to this, and the height, angle, and width are changed. You may make it form, and you may make it form in another shape.
The upper surface portion 11 constituting the upper surface of the main body 1 is provided with a skylight portion 15 with an inner side of the ring opened.
A bottom plate 2 made of a metal such as an aluminum alloy is attached to the lower surface of the lower surface portion 12 constituting the lower surface of the main body 1 so as to close the inner portion of the opening ring.

Reference numeral 4 denotes a reflecting member.
In the reflecting member 4, a reflector 41 made of glass beads is disposed at an appropriate interval on a base material 42 having a band shape.
The reflector 41 is preferably made of glass beads that have high retroreflectivity that reflects light parallel to the incident light, and that is not easily contaminated or deteriorated. You may stick. The material of the base material 42 may be a metal such as steel, stainless steel, or aluminum. However, in order to make it easy to embed and form the reflector 41, a highly elastic synthetic material such as rubber, urethane resin, or elastomer is used. It is preferable to use a resin, and it is more preferable to use a thermoplastic synthetic resin having a certain degree of hardness, such as polyethylene or polypropylene, so that the reflector 41 is not easily detached.
Further, in the reflecting member 4 of the present embodiment, the reflector 41 is disposed over the entire length of the base material 42 so that the retroreflectivity of the reflector 41 is obtained over the entire length of the reflecting member 4. ing.

In the main body 1, a groove portion 16 that is recessed inward is formed on the outer peripheral side surface of the upper surface portion over the entire circumference.
The band-like reflecting member 4 is wound around the groove 16 and attached to the upper surface portion 11 of the main body 1. More specifically, the reflecting member 4 including the reflector 41 is arranged from the edge of the upper surface portion 11 of the main body 1. The groove portion 16 is housed and attached so as to be located on the radially inner side of the main body 1. The reflecting member 4 is made difficult to come off by being wound around the groove portion 16 and can be prevented from being displaced in the vertical direction.
Moreover, since the reflector 41 does not protrude outward from the outer surface of the main body 1 by positioning the reflector 41 radially inward of the main body 1 with respect to the edge of the upper surface portion 11 of the main body 1, the wheels of the vehicle or the like Since the wheel or the like does not directly contact the reflector 41 or the base material 42 when stepped on, the reflection member is prevented from being damaged or the retroreflectivity is reduced due to contamination.
Note that the configuration of the strip-shaped reflecting member 4 is not limited to the configuration of the present embodiment using the reflector 41 and the base material 42, and the reflective tape formed in a strip shape may be directly attached to the groove portion 16. Other forms may be used.

3 is a translucent body.
The translucent body 3 is formed in the shape of a truncated cone that opens downward like a flat dish, and a circular light-receiving surface portion 31 formed in a uniform thickness is provided on the upper surface portion thereof, and this light-receiving surface portion An inclined side surface portion 32 extending obliquely downward and outward from the edge of 31 is formed.
The outer shape of the translucent body 3 is formed in a shape corresponding to the inner shape of the main body 1, and the outer side of the inclined side surface portion 32 is the inner side of the upper surface portion 11, the inclined column portion 13, and the lower surface portion 12 of the main body 1. The translucent body 3 is housed and attached in the main body 1 so that the inclined side surface portion 32 is positioned inside the main body 1 with respect to the window portion 14.
The translucent body 3 is generally produced from a synthetic resin having translucency such as hard transparent glass, polycarbonate, acrylic resin or the like.

Further, the light receiving surface portion 31 of the translucent body 3 is formed with a step portion 33 whose outer peripheral edge falls downward over the entire circumference. The light receiving surface portion 31 on the inner side of the step portion 33 is formed in a shape corresponding to the skylight portion 15 of the main body 1, and the upper surface of the step portion 33 is brought into contact with the lower surface of the upper surface portion 11 of the main body 1. The light-receiving surface portion 31 inside the portion 33 is inserted into the skylight portion 15 from below, and the translucent body 3 is housed and attached to the main body 1.
The light receiving surface portion 31 is inserted into the skylight portion 15, the stepped portion 33 is brought into contact with the upper surface portion 11, and the translucent body 3 is attached to the main body 1. Therefore, the light emitting indicator for a road is stepped on a vehicle wheel or the like. In some cases, the light receiving surface portion 31 and the skylight portion 15 come into contact with each other, and problems such as displacement due to the force received by the light transmitting body 3 and the main body 1 are less likely to occur.

  A ring-shaped lower surface of the inclined side surface portion 32 of the translucent body 3 is attached in contact with the upper surface of the bottom plate 2. An annular groove 34 that is recessed upward is formed on the lower surface of the inclined side surface portion 32, and a packing P is fitted and attached to the annular groove 34, and the bottom plate 2 and the translucent body are attached. Water or the like is prevented from entering the inner side of the translucent body 3 from the gap with the outer wall 3.

Reference numeral 5 denotes a light emitting unit.
The light emitting unit 5 of the present embodiment includes a solar cell 55, a power storage unit 53 that stores electric power generated by the solar cell 55, a light emitter 51 that emits light by the power of the power storage unit 53, And a board-shaped control device 54 for controlling energization, each of which is formed in a unit attached to a disk-shaped board 59. The light emitting unit 5 is fixed to the bottom plate 2 and accommodated in a hollow portion inside the translucent body 3, and is housed in the main body 1.
The light emitting unit 5 is attached so that the solar cell 55 is disposed below the light receiving surface portion 31 of the translucent body 3, and receives sunlight from above that passes through the light receiving surface portion 31 to generate electric power. It is provided to do.
A charging device such as a rechargeable battery such as a lead storage battery or an electric double layer capacitor can be used for the power storage unit 53 of the present embodiment. In addition, a light-emitting diode, a halogen lamp, a metal halide lamp, a cathode tube, electroluminescence, a xenon lamp, or the like is appropriately used as the light-emitting body 51 of the present embodiment. Generally, a light-emitting diode with strong directivity and high luminance is used. Preferably used.

Twenty-four light emitters 51 are attached to the light emitting unit 5 of the present embodiment so that the optical axis is directed in the horizontal direction. Specifically, each light emitter 51 is attached to a holder 58 provided so as to protrude upward from the upper surface of the disk-shaped substrate 59, and each light emitter 51 is arranged in a vehicle seat shape near the edge of the substrate 58. It is attached so that the light from each light emitter 51 is emitted radially toward the outside of the substrate 59.
Further, in a state where the light emitting part 5 is housed in the main body 1, the light emitting bodies 51 are attached and fixed to the holder 58 so that the height in the vertical direction is located at the approximate center of the window part 14.

A sensing means 57 is fixed to the light emitting unit 5.
The sensing means 57 of the present embodiment is a phototransistor that receives light from an approaching object such as a vehicle or a bicycle with a headlamp lit when the surroundings are dark such as evening or night, and the control When detecting an approaching object connected to the device 54, start or end of light emission by each light emitter 51, or change of a light emission pattern expressed by a combination of each light emitter 51 or a blinking cycle is performed. Has been made.
The sensing means 57 of this embodiment is attached to the holder 58 with its sensing direction oriented in the horizontal direction, and more specifically, two adjacent light emitters 51 attached in a vehicle seat shape. It arrange | positions between the light-emitting bodies 51, and eight sensing means are attached to the vehicle seat shape at equal intervals by this form. Each sensing means 57 is provided so as to sense light incident from each of the eight window portions 14 formed in the main body 1.

Reference numeral 6 denotes a lens unit.
The lens portions 6 are arranged in a vehicle seat shape on the light emission direction side of the light emitters 51 so as to collect and emit the light of the light emitters 51, and are respectively fixed to the upper surface of the bottom plate 2.
Specifically, the lens 61 included in the lens unit 6 of the present embodiment is formed in a horizontally long shape, and the light of a plurality of light emitters 51, and in this embodiment, three light emitters 51 can be collected by one lens 61. The eight light emitter groups 52 are arranged so that one lens portion 6 is arranged on the light emission direction side of the light emitter group 52 configured by three light emitters 51 as one set. A total of eight lens portions 6 are fixed one by one on the light emission direction side.

  The light-emitting sign for a road according to the present embodiment is integrally formed so that a plurality of inclined column parts 13 are bridged between the lower surface outer edge of the upper surface part 11 and the upper surface inner edge of the lower surface part 12, The main body 1 is provided in a truncated cone shape so that the lower surface portion 12 protrudes outward from the lower portion of each inclined column portion 13. For this reason, when the road luminous indicator of this embodiment is stepped on the wheel of the vehicle, the force received from the inclined part such as each inclined column portion 13 is directed obliquely downward, and the road luminous indicator. Although it tries to work as a lateral force to remove the fixation between the mounting surface and the lower surface portion 12 that protrudes outward from the lower portion of each inclined column portion 13, a part of the wheel is By making contact with the upper surface of the lower surface portion 12, a downward force is applied to the lower surface portion 12, which acts as a force for pressing the road light emitting indicator against the installation surface, and the road light emitting indicator and the installation surface are not easily fixed. Made.

4 shows a lens portion used in the light-emitting sign for a road of FIG. 1, (A) is a plan view, (B) is a front view, and (C) is a side view, FIG. 4 is a cross-sectional view of the lens portion of FIG. 4, (A) is a cross-sectional view taken along line AA in FIG. 4, and (B) is a cross-sectional view taken along line BB in FIG.
The lens portion 6 includes a plate portion 62 formed in a rectangular plate shape and a horizontally long lens 61 formed on the upper portion of the plate portion 62.
The plate portion 62 is formed in a plate shape that stands up and down, and more specifically, is formed in a plate shape that curves so that the central portion protrudes forward.
The lens 61 is formed in a semi-circular shape that converges in the center by drawing a rounded shape so that the left and right sides of a horizontally long rectangle are in the horizontal direction as viewed from the front, and is substantially the upper half of the plate portion 62. It is provided so as to occupy the range.

The lens 61 provided on the plate portion 62 includes a front portion formed by a front lens surface 61a formed to protrude forward from the front surface of the plate portion 62, and a rear lens similarly formed on the rear surface side of the plate portion 62. It is comprised from the back part comprised by the surface 61b.
As shown in FIG. 5 (b), in the upper and lower cross sections of the lens 61, the front portion of the lens 61 is formed to have an arc-shaped cross section protruding forward of the plate portion 62. The arc shape of the portion functions as the front lens surface 61a.
Further, the rear portion of the lens 61 is formed such that the rear surface of the plate portion 62 is recessed forward at a position corresponding to the front lens surface 61a, and this concave shape functions as the rear lens surface 61b. At this time, the rear lens surface 61b is formed in an arc shape having a smaller curvature than the front lens surface 61a. By forming the front lens surface 61a and the rear lens surface 61b as described above, the upper and lower cross-sectional shape of the lens 61 is the thickest at the center of the lens surface and becomes thinner toward the end. It functions as a convex lens in the vertical direction.

FIG. 6 is a longitudinal sectional view of the main part of FIG. 1 in which the vicinity of the lens part showing the state of light emission from the light emitter is enlarged.
FIG. 6 shows the state of light rays emitted from the light emitter 51 in the vertical direction. When light is emitted from the light emitter 51 and emitted without passing through the lens 61, the light L1 near the optical axis remains as light K1. The lens 61 is radiated by traveling straight to the range of K2, but by forming the upper and lower cross-sections of the lens 61 as described above, the lens 61 varies depending on the difference in curvature between the rear lens surface 61b and the front lens surface 61a. Is configured to function as a convex lens in the vertical direction, the light L1 from the light emitter 51 is collected, and is emitted from the front lens surface 61a as light T1 to T2 whose emission range in the vertical direction is narrowed.
By condensing the light L1 emitted from the light emitter 51 in the vertical direction by the lens 61, the lights T1 and T2 are visually recognized as light brighter than the light L1, thereby improving the visibility of the light emission indicator for roads. In addition, the luminescent sign for roads can be seen well from pedestrians and drivers who travel far away.
Further, in the case where the light L1 does not pass through the lens 61, the light K1 and the light K2 that are irradiated on the inner side surface of the main body 1 and are not emitted outward from the window portion 14 are condensed by the lens 61, so that the light L1 is collected. Since the direction can be changed from the center of the lens 61 and the light can be emitted from the window portion 14 as the light T1 and T2, the efficiency of the light emission indication can be increased.

In the light emitted from the light emitter 51, the light L3 emitted downward from the lens 61 is transmitted through the plate portion 62 of the lens portion 6, and the reflected light R3 reflected by the bottom plate 2 is transmitted from the window portion 14. It is radiated outward and is visible from the outside.
The reflected light R3 is emitted by the light emitting sign for road because the reflected light R3 is radiated upward with respect to the light T1 to T2 which is collected by the lens 61 and has improved visibility in the horizontal direction. In addition to pedestrians and drivers who travel far away, they can be seen well by drivers such as pedestrians and bicycles who pass near the light-emitting sign for roads.

Furthermore, in the light emitted from the light emitter 51, the light L <b> 4 emitted upward passes between the solar cell 55 and the upper surface portion 11 of the main body 1, and the light receiving surface portion 31 of the translucent body 3. And is radiated outward from the skylight 15 so that it can be seen from the outside.
Like the reflected light R3, the light L4 is emitted upward from the lights T1 and T2, so that the light L4 can be seen well by a driver such as a pedestrian or a bicycle passing near the light emitting indicator for a road. It is made to be done.

As shown in FIG. 5A, in the horizontal cross section of the lens 61, the front lens surface 61 a formed so as to protrude forward from the front surface of the plate portion 62 is curved at the center similarly to the plate portion 62. The two ends are formed so as to reach the side surface or the front surface of the plate portion 62 by drawing an arc so that the projecting size toward the front becomes smaller toward the end.
Further, the shape of the rear lens surface 61b formed so that the rear surface of the plate portion 62 is recessed forward at the position corresponding to the front lens surface 61a is the same as that of the plate portion 62 and the front lens surface 61a at the center. The curved portion is formed so as to reach the rear surface of the plate portion 62 by drawing an arc so that the size of the concave portion decreases toward the ends at both ends.

The central curved portions of the front lens surface 61a and the rear lens surface 61b are curved with the same curvature, and a portion having a uniform lens thickness is formed in the horizontal direction of the lens 61. This is the non-horizontal light collecting portion 65. Function as.
The non-horizontal condensing unit 65 does not function as a lens that condenses light in the horizontal direction because the thickness of the lens 61 in the horizontal direction is uniformly formed.

In addition, the curvature of the arc at both end portions of the rear lens surface 61b is smaller than the arc at both end portions of the front lens surface 61a.
By forming the horizontal cross section of the lens 61 as described above, the arc portions of the front lens surface 61a and the rear lens surface 61b formed at both ends of the non-lateral light converging portion 65 are shown in FIG. It functions as a horizontal light converging unit 66 having the same light condensing effect as 61. When light from the illuminant 51 disposed behind the lens unit 61 enters the lateral condensing unit 66, the light is condensed and radiated from the front lens surface 61a by narrowing the radiation range in the horizontal direction.

FIG. 7 is a horizontal cross-sectional view of the main part of FIG. 1 in which the vicinity of the lens part showing the state of light emission from the light emitter is enlarged.
In this figure, in order to show a situation in which light from the light emitter 51 is emitted outward through the transparent body 3 and the window portion 14, the transparent body 3 and the inclined column portion 13 are added to FIG. is doing.
As described above, one lens unit 6 is disposed and fixed on the light emitting direction side of the light emitter group 52 including the light emitters 51 each including a set of three.
The light L5 emitted from each light emitter 51 and entering the non-horizontal light collecting portion 65 of the lens 61 is not condensed in the horizontal direction by the lens 61, and the horizontal light direction and the radiation range are changed. No light T5 is emitted from the lens 61.
Similarly, when the light T5 is transmitted through the translucent body 3, the light T5 is radiated outwardly through the window portion 14 without changing the direction and the radiation range of the light.

On the other hand, the light L6 emitted from the light emitter 51 and entering the lateral condensing unit 66 of the lens 61 is condensed in the horizontal direction by the lens 61 to narrow its radiation range, and the direction of the light is set to the horizontal center of the lens 61. The light 61 is emitted from the lens 61 as the light T6 that is further changed.
Although the light T6 is radiated outward through the window portion 14, it is emitted as light stronger than the light L6 by being condensed on the lens 61.
Further, in the case where the light L6 does not pass through the lens 61, the light K6 that is irradiated on the inner side surface of the inclined column portion 13 of the main body 1 disposed between the lens portions 6 and is not emitted outward from the window portion 14. Can be emitted from the window 14 as the light T6 by changing the direction of the light from the center of the lens 61 by condensing the light with the lens 61, so that the efficiency of light-emitting display can be improved.

As described above, the light radiated through the lens 6 is condensed so as to narrow the radiation range in the vertical direction to increase the brightness, and the non-horizontal condensing unit 65 is provided. This suppresses condensing in the horizontal direction and suppresses the narrowing of the light emission range.
When a target person such as a pedestrian or a vehicle driver moves normally, the height of the eye position relative to the road surface does not change greatly. Even if the radiation range is narrowed, the visibility is not greatly impaired.
On the other hand, since the person to be labeled passes along the road and moves in the horizontal direction, the light emitted from the light-emitting sign 1 for the road is radiated in a wide range in the horizontal direction so that a visible place is made larger. It is preferable, and by providing the non-lateral condensing part 65 like the lens 61 of this embodiment, radiation to such a wide range can be performed.

Moreover, since the light-emitting sign body for roads of this embodiment has the several window part 14 which radiates | emits the light from the light-emitting body 51 outward, it is arranged in parallel over the perimeter of the outer peripheral side surface of the main body 1. The light from the light emitting body 51 radiated from the window portion 14 can be visually recognized from any surrounding direction. The main body 1 of the present embodiment is provided with each window portion 14 between each inclined column portion 13, and the width of each window portion 14 is formed to be four times or more the width of each inclined column portion 13, Visibility from the periphery of the light-emitting sign for roads is very high.
In addition to the light emission sign from each window portion 14, the road light emission sign object of the present embodiment provides an indication by retroreflection of light on the reflection member 4 attached over the entire circumference of the upper surface portion 11 of the main body 1. It can be carried out.
Along with the light from the light emitter 51, the headlight light of the vehicle retroreflected by the reflecting member 4 is visually recognized by the driver, and two kinds of light are visually recognized at the same time. Can be done in the direction.

FIG. 8 is a diagram for explaining one form of the light emission pattern of the light emitter of the road light emitting indicator of FIG.
The light emitting unit 5 of the present invention is configured such that the control device 54 controls the energization of each light emitter 51 to express light emission indications with various light emission patterns.
In FIG. 8, the light emitter 51 marked with an asterisk emits light, and the light is emitted in a unit of three light emitter groups 52 attached to the inside of one lens portion 6. Is shown.
Specifically, first, the luminous body group 52 shown in (a) blinks, and then, as shown in (b), the neighboring luminous body group 52 blinks clockwise, and further continues. As shown in (c), the light emitting group 52 adjacent to the clockwise direction further blinks, and the light emitting group 52 adjacent to the clockwise turns sequentially so that the light flows clockwise. It is made to be visually recognized.

The light emission pattern of the above-described embodiment is blinking light emission in units of three light emitter groups 52 in accordance with the arrangement of the lenses 6, but is not limited to this, and flows in units of one light emitter 51. You may make it light-emit, and you may make it light-emit by making 2 sets of 1 or 4 or more light-emitting bodies 51 into 1 set.
Moreover, the light emission pattern by the light emission indicator for roads of this embodiment is not restricted to flow light emission as mentioned above, You may make it light-emit by the light emission pattern of blinking all the light-emitting bodies 51 simultaneously.

  In addition, the above-described light emission pattern may be switched according to the situation. When the sensing means 57 provided in the light emitting unit 5 senses an approaching object, the control device 54 sets the light emission pattern of each light emitter 51. You may make it comprise so that a kind, a period, etc. may be changed.

FIG. 9 is a view showing another embodiment of the light-emitting sign for road according to the present invention.
In the light emitting indicator for a road according to the present embodiment, 16 light emitters 51 are attached to a light emitting portion 5 in a vehicle seat shape, and each light emitter 51 constitutes a light emitter group 52 of one set. This is different from the embodiment shown in 1 to 8.
The light-emitting sign for a road according to the present invention may be configured by appropriately adjusting the number and combination of the light-emitting bodies 51 and the light-emitting body groups 52 according to the installation location and purpose, as shown in FIGS. 1 and 9. As described above, it is preferable to provide eight or more luminous body groups 52 that radiate light radially outward from the main body 1 so that the light-emitting display can be visually recognized from all directions.

FIG. 10 is a view showing a horizontal cross section of a main part showing another embodiment of the light emitting indicator for road according to the present invention, and FIG. 11 is a view showing a vertical cross section of the main part of the embodiment of FIG. is there.
The present embodiment is different from the embodiment shown in FIG. 1 in that the cover body 7 is attached to the inner side surface of the translucent body 3, and specifically, a sheet-like cover having translucency. A total of eight bodies 7 are attached so as to cover the eight window portions 14 from the inside.
The cover body 7 diffuses the light incident from the back surface and emits it from the front surface, and diffuses the light from each light emitting body 51 and radiates it from the window portion 14.
By attaching the cover body 7 as described above, the light from the light emitter 51 is diffused by the cover body 7 so that the entire range of the window portion 14 emits light from the outside of the main body 1. Visible, and visibility is enhanced by light emission of a larger area.

FIG. 12 is an enlarged view showing the surface of the cover body of FIG.
The cover body 7 of the present embodiment uses a retroreflective sheet having translucency, and more specifically, a prism type retroreflective sheet in which a prism element of a cube corner prism is formed inside the sheet. ing.
In the cover body 7 of the present embodiment, a retroreflective region 71 in which prism elements are formed and a gap region 72 that is provided around the retroreflective region 71 and does not have retroreflectivity are provided uniformly. Specifically, the gap region 72 is provided so as to form a mesh pattern between the retroreflective regions 71 having a rhombus shape regularly arranged in the vertical direction and the horizontal direction.

  Since the retroreflective area 71 is uniformly formed on the entire cover body 7, the light irradiated from the outside of the main body 1 is reflected by the retroreflective area 71 and recurs in the direction of the light source in the entire cover body 7. Since the light is reflected, the visibility from the driver of the vehicle whose headlight is turned on is improved in addition to the retroreflected light from the reflecting member 4.

  The gap region 72 is provided in milky white translucent, and is provided so that light incident from the back side is diffused and transmitted to the front side. Since the gap area 72 provided in this way is uniformly formed on the entire cover body 7, the light emission of the cover body 7 by the light emitter 51 can be made uniform surface light emission.

  Further, the cover body 7 of this embodiment is formed of a retroreflective sheet having translucency, but is not limited thereto, and a retroreflector other than a sheet formed by injection molding or the like is used. It may be used. By providing the gap region 72 as described above in the cover body 7, the light of the light emitter 51 can be diffused and transmitted, and the visibility thereof can be improved.

Further, in the light emitting sign for a road according to the present embodiment, a part of the cover body 7 covering each of the eight window portions 14 is a non-translucent one having retroreflectivity of light, and this non-translucency. The lens unit 6 and the light emitter 51 disposed in the window unit 14 provided with the cover body may be provided so as to be removed.
With such a configuration, when there is no need for light emission display by the light emitters 51 in some directions, the number of light emitters 51 that emit light is reduced, and the reduction in the amount of power stored in the power storage unit 53 is suppressed. At the same time, the visibility can be secured by the retroreflectivity of the cover body.

DESCRIPTION OF SYMBOLS 1 Main body 11 Upper surface part 12 Lower surface part 13 Inclined pillar part 14 Window part 15 Skylight part 16 Groove part 2 Bottom plate 3 Light-transmitting body 31 Light-receiving surface part 32 Inclined side part 33 Step part 34 Circular groove 4 Reflective member 41 Reflector 42 Base material 5 Light emission Unit 51 Light emitter 52 Light emitting group 53 Power storage unit 54 Control device 55 Solar cell 57 Sensing means 58 Holder 59 Substrate 6 Lens unit 61 Lens 61a Front lens surface 61b Rear lens surface 62 Plate unit 65 Non-horizontal condensing unit 66 Lateral condensing Part 7 Cover body 71 Retroreflective area 72 Gap area P Packing L1-L6 Light K1-K6 Light T1-T6 Light R3 Reflected light

Claims (6)

A plurality of light emitters, a control device that controls energization of each light emitter, a light emitter that transmits light from each light emitter and emits the light to the outside, the light emitter, each light emitter, and the light emitter A light-emitting sign for a road equipped with a main body for interior of a control device,
The main body is formed in a truncated cone shape that is installed on the road surface and protrudes upward, and a plurality of windows are arranged in parallel along the circumferential direction on the outer peripheral side surface of the main body,
The light-emitting sign for a road, wherein the light-transmitting body is attached to the inside of the window portion so as to transmit light from the light-emitting body and radiate to the outside through the window portion.   The groove portion along the circumferential direction is formed on the outer peripheral side surface of the main body over the entire circumference, and a reflection member having retroreflectivity of light is attached to the groove portion over the entire circumference. The light-emitting sign for roads according to 1. In the plurality of light emitters, a plurality of light emitting groups including one or two or more adjacent light emitters are provided, and each light emitter group has a lens unit that collects and emits light emitted from the light emitters. Each is provided,
A vertical non-condensing part is formed on each of the lens parts, with the thickness being changed in the vertical direction to provide a form as a convex lens, and in the horizontal direction the thickness is constant and not provided as a lens. The light-emitting sign for road according to claim 1 or 2, wherein   Each lens unit is formed with a horizontal condensing unit having a shape as a convex lens by changing the thickness in the horizontal direction at both ends in the horizontal direction of the lateral non-condensing unit, and from one window unit 4. The light-emitting sign for road according to claim 3, wherein the light of one light-emitting body group is emitted. In the main body, a cover body that covers the window portion from the inside is attached,
The light from the light emitter that passes through the window is transmitted through the cover body,
The light emitting sign for a road according to any one of claims 1 to 4, wherein the cover body diffuses light incident from the back surface and transmits the light to the window portion. The cover body includes a number of retroreflective areas,
A gap region that does not have retroreflectivity provided around each retroreflective region,
The gap region is configured to diffuse and transmit light incident from the back surface,
While transmitting the light from the light emitter through the gap region from the back side of the cover body and radiating it to the window,
The light emitting sign for a road according to claim 5, wherein light from the outside of the main body is retroreflected in the retroreflective region.

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