JP2016126835A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which has ease of maintenance and can illuminate the ceiling part and the road in a tunnel.SOLUTION: A lighting device includes: a housing 11 which is fitted to a position lower than the eye line of a driver in a vehicle 9 running on a road 81 at the side of the road 81 in a tunnel 8 and has a first window part 12 fitted to the front surface at the side of the road 81 and a second window part 14 fitted to the top surface; a first lamp 2A which is fixed to the inside of the housing 11 and illuminates the road 81 via the first window part 12; and a second lamp 2B which is fixed to the inside of the housing 11, the posture of which can be adjusted by being rotated around a rotary shaft along the extending direction of the road 81 in a prescribed scope, and which illuminates a ceiling part 82 of the tunnel 8 via the second window part 14.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a lighting device for a tunnel.

  Conventionally, a lighting device for a tunnel is installed on an upper portion of a tunnel such as a ceiling portion or a side wall portion and illuminates a lower road (see Patent Document 1).

JP 2001-234514 A

  However, the technique described in Patent Document 1 has problems in that the brightness of the tunnel ceiling cannot be sufficiently obtained and that maintenance is troublesome.

  In view of the above problems, an object of the present invention is to provide an illumination device that is easy to maintain and can illuminate a tunnel ceiling and a road.

  In order to achieve the above object, the first aspect of the present invention is provided on the side of the road in the tunnel at a position lower than the line of sight of the driver of the vehicle traveling on the road and provided in front of the road side. A housing having a first window portion and a second window portion provided on the upper surface, a first lamp fixed to the inside of the housing and illuminating a road through the first window portion, and an inside of the housing A posture is adjustable by being fixed and rotated within a predetermined range with respect to a rotation axis along the extending direction of the road, and includes a second lamp that illuminates the ceiling of the tunnel through the second window portion. The gist is that it is a lighting device.

  According to the present invention, it is possible to provide an illuminating device that is easy to maintain and can illuminate a tunnel ceiling and a road by emitting light in two directions from a low position in the tunnel.

(A) is a top view explaining the illuminating device which concerns on embodiment of this invention. (B) is a side view of the illuminating device corresponding to (a). (C) is a front view of the illuminating device corresponding to (a). It is a figure explaining a mode that the illuminating device which concerns on embodiment of this invention is installed in a tunnel. (A) is a top view explaining the lamp | ramp with which the illuminating device which concerns on embodiment of this invention is provided. (B) is sectional drawing of the lamp | ramp corresponding to (a). (C) is a top view explaining the state which removed the cover of the lamp | ramp corresponding to (a). It is sectional drawing seen from the length direction explaining the lamp | ramp with which the illuminating device which concerns on embodiment of this invention is provided. It is sectional drawing explaining the illuminating device which concerns on embodiment of this invention. It is a perspective view explaining the holding member of the lamp | ramp with which the illuminating device which concerns on embodiment of this invention is provided. It is sectional drawing explaining an example of the prism board used for the illuminating device which concerns on embodiment of this invention. It is sectional drawing explaining an example of the prism board used for the illuminating device which concerns on embodiment of this invention.

  Next, embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals, and redundant description is omitted. However, the drawings are schematic, and portions having different dimensional relationships and ratios between the drawings are included. Further, the embodiment described below exemplifies an apparatus and a method for embodying the technical idea of the present invention, and the technical idea of the present invention is the material, shape, structure, The layout is not specified as follows.

(Lighting device)
As shown in FIG. 1, an illuminating device 1 according to an embodiment of the present invention includes a rectangular parallelepiped housing 11 and a plurality of first lamps 2 </ b> A and second lamps provided inside the housing 11. 2B. As shown in FIG. 2, the lighting device 1 is installed on a side of the road 81 in the tunnel 8 at a position lower than the eyes of the driver of the vehicle 9 traveling on the road 81.

  The housing 11 is formed in a box shape from a metal material including, for example, aluminum. The casing 11 is provided in front of the road 81 side, and is provided with a first window 12 that transmits light L1 emitted from the first lamp, and an upper surface that transmits light L2 emitted from the second lamp. A second window portion 14. The casing 11 has a length a along the extending direction of the road 81, a depth b in the horizontal direction with respect to the road 81, and a height c. The dimensions of the housing 11 are, for example, a length a of 1.3 m, a depth b of 10 cm, and a height c of about 22 cm.

  The first window portion 12 is formed on the front surface of the housing 11, and has a rectangular through hole 120 that penetrates from the inside of the housing 11 to the outside, and a transmission plate 121 that closes the through hole 120 from the outside of the housing 11. Consists of

  It is a transparent rectangular flat plate having an area larger than that of the through hole 120, and is made of, for example, glass or a resin material. The transmission plate 121 can close the through hole 120 by contacting the peripheral region of the through hole 120. The transmission plate 121 is attached to the upper part of the front surface of the housing 11 via the plurality of hinges 17 at the upper part. One of the hinges 17 is fixed to the front surface of the housing 11 by screws 171 and the other is fixed to the upper part of the transmission plate 121 by screws 172. The transmission plate 121 is attached to the housing 11 so as to be opened and closed by the hinge 17 and can function as a lid that opens and closes when the lighting device 1 is maintained and managed.

  The transmission plate 121 is fixed to the lower portion of the front surface of the housing 11 by a plurality of fixing plates 18 in a state where the through hole 120 is closed at the lower portion. Each fixing plate 18 has a lower portion fixed to the front surface of the housing 11 by screws 181 and an upper portion fixed to the lower portion of the transmission plate 121 by screws 182. In addition, the peripheral area of the through hole 120 is a position where the thickness of the transmission plate 121 is recessed so that the front surface of the housing 11 and the outer surface of the transmission plate 121 are flat with the transmission plate 121 closed. In addition, a dustproof packing is formed.

  The second window portion 14 is formed on the upper surface of the housing 11 and includes a rectangular through hole 140 penetrating from the inside to the outside of the housing 11 and a transmission plate 141 that closes the through hole 140. The transmission plate 141 is a transparent rectangular flat plate having an area larger than that of the through hole 140, and is formed of, for example, glass or a resin material. The transmission plate 141 closes the through hole 120 by being fixed to the peripheral region of the through hole 140 from the inside of the housing 11, for example.

  As shown in FIGS. 3A to 3C and FIG. 4, the first lamp 2A and the second lamp 2B (hereinafter simply referred to as “lamp 2” when generically referred to) are roughly square-shaped light emitting diodes ( LED) unit. The ramp 2 has a length d along the extending direction of the road 81, a depth e, and a height f. The dimensions of the lamp 2 are, for example, a length d of 56 cm, a depth e of 3 cm, and a height f of about 1.8 cm. The lamp 2 includes, for example, a light source unit 21, a heat radiating member 22, an insulating member 23, a mounting member 24, a reflecting member 25, and a cover 26.

  The light source unit 21 includes a rectangular flat plate-shaped mounting substrate 211 extending in one direction, a light emitting unit 212, and a connector 213. The light emitting unit 212 includes a plurality of LEDs arranged at equal intervals along the extending direction of the mounting substrate 211 and a resin material in which a phosphor is mixed at the center of the surface of the mounting substrate 211. It is comprised from the sealing material which seals. The connector 213 is connected to the plurality of LEDs of the light emitting unit 212 through a wiring pattern formed on the surface of the mounting substrate 211. The plurality of LEDs emit light by being supplied with power through a connector 213 connected to an external power source, and excite the phosphor as a sealing material. The light source unit 21 emits white light, for example.

  The heat dissipating member 22 is generally a flat plate extending in one direction, and is formed from a metal material having a relatively high thermal conductivity such as aluminum. The heat dissipation member 22 can function as a base body on which the light source unit 21 is installed on the front surface and the attachment member 24 is installed on the back surface side. The heat dissipation member 22 dissipates heat generated by the light source unit 21.

  The insulating member 23 is mainly disposed between the light source unit 21 and the heat radiating member 22. The wiring of the light source unit 21 and the heat dissipation member 22 are insulated. The insulating member 23 is formed from an insulating synthetic resin material or the like. The insulating member 23 is partially opened at the center of the back surface of the light source unit 21 so that the light source unit 21 and the heat dissipation member 22 are in contact with each other.

  The attachment member 24 has an attachment mechanism for attaching the lamp 2 to the other. In addition, the attachment member 24 is attached with a connector or the like for connection to an external power source. The reflection member 25 is located on both ends of the light source unit 21 in the extending direction. The reflective member 25 reflects the light emitted from the light source unit 21 toward the surface side of the light source unit 21 by being inclined so that the height viewed from the surface of the light source unit 21 increases as the distance from the light source unit 21 increases. To do.

  The cover 26 has a quadrangular prism shape having an opening on one side so as to accommodate the light source unit 21, the heat radiating member 22, the insulating member 23, the mounting member 24, and the reflecting member 25. The cover 26 is made of, for example, a synthetic resin material having light transparency and insulating properties. The cover 26 is fixed to the heat radiating member 22 by a plurality of hooks (not shown) formed on the heat radiating member 22.

  As illustrated in FIG. 5, the illumination device 1 further includes a fixing member 13, a reflecting mirror 3, a holding member 4, an installation tool 51, and an installation table 53. The first lamp 2 </ b> A is fixed inside the housing 11 by the fixing member 13 so that the light emission direction faces downward on the back side. The fixing member 13 is made of, for example, a bent metal material. One end side of the fixing member 13 is fixed to the inner wall surface on the back side of the housing 11, and the other end side is fixed to the first lamp 2A.

  The reflecting mirror 3 is disposed below the first lamp 2A. The reflecting mirror 3 extends along the extending direction of the road 81, and is formed such that the cross-sectional shape of the mirror surface perpendicular to the extending direction forms a curve such as a parabola. The reflecting mirror 3 is fixed to the inner wall of the housing 11 at both ends in the extending direction. The reflecting mirror 3 can reduce glare for the driver by reflecting the light emitted from the first lamp 2 </ b> A toward the road in the front direction of the housing 11 through the first window portion 12. .

  For example, as shown in FIG. 6, the holding member 4 has a flat plate shape that extends along the extending direction of the road 81, and the holding member 41 that holds the second lamp 2 </ b> B, and both ends of the holding unit 41 in the extending direction. And a fixing portion 42 for fixing the holding member 4 inside the housing 11. The second lamp 2 </ b> B is fixed to the surface of the holding portion 41 by the attachment member 24 on the back surface side, and emits light toward the ceiling portion 82 of the tunnel 8 above the housing 11 through the second window portion 14. The fixing portion 42 is, for example, a flat plate formed so as to be bent from the end portion of the holding portion 41, and has a circular through hole 40 penetrating from one side to the other side.

  The holding member 4 is fixed to the housing 11 by fastening a fastener such as a screw to the inner wall of the housing 11 through the through hole 40, for example. The second ramp 2 </ b> B can be rotated within a predetermined range with respect to the rotation axis along the extending direction of the road 81 by adjusting the inclination of the holding member 4 with a fixture for fixing the holding member 4. The second lamp 2 </ b> B can be adjusted in posture by being rotated within a predetermined range, and can be adjusted in a range irradiated toward the ceiling portion 82 through the second window portion 14.

  The installation tool 51 is made of, for example, a metal plate bent at a right angle. The installation tool 51 is fixed to both ends of the lower surface of the housing 11 in the length direction by screws 52 in the horizontal region. The installation base 53 is made of, for example, a metal plate whose both ends are bent at right angles. The installation base 53 is fixed to, for example, the upper surface of the monitoring person passage wall 84 by a screw 56 in the horizontal region.

  The two installation tools 51 and the installation table 53 are fixed to each other by two types of screws 54 and 55 in the vertical region. The screw 55 is disposed above the screw 54. The through hole for passing the screw 55 of the installation tool 51 is formed in a circular arc shape centered on the screw 54 with a margin with respect to the screw 55. Thereby, the housing | casing 11 can rotate in the predetermined range with respect to the rotating shaft along the extending direction of the road 81 using the screws 54 and 55, passing through the screw 54. FIG. The housing 11 can be adjusted in posture by being rotated within a predetermined range, and can be adjusted in a range irradiated toward the road 81 through the first window portion 12 by the first lamp 2A.

  For example, as illustrated in FIG. 2, the lighting device 1 is installed at an end portion on the road 81 side in the upper surface of the monitoring person passage wall 84 that is separated from the road 81 by the road shoulder 83 on both sides of the road 81. A plurality of lighting devices 1 are arranged at equal intervals along the extending direction of the road 81. The illuminating devices 1 arranged in a plurality are connected to each other by a cable 61 and supplied with electric power from the outside. The cable 61 is pulled out from the pull-out portions 62 provided on both side surfaces in the length direction of the housing 11, and supplies power to the lamp 2 via the connector 213 of the lamp 2. The lamp 2 emits light when power is supplied through the cable 61.

  In the example shown in FIG. 2, the road 81 has three lanes on one side, and each lane has a width g. Road shoulders 83 having widths h and i are located on both sides of the road 81, respectively. The monitoring person passage walls 84 are formed on both ends of the tunnel 8 adjacent to the road shoulders 83, and form a monitoring person passage formed at a position higher than the road 81 and the road shoulders 83 on the upper surface. The width g of each lane of the road 81 is about 3.25 m, for example. If the traveling direction of the road 81 is the depth direction in FIG. 2, the width h of the left road shoulder 83 is, for example, about 2.5 m, and the width i of the right road shoulder 83 is, for example, about 0.75 m.

  The first lamp 2A of the lighting device 1 installed on the left side of the road 81 emits the light L1 in a range p that can illuminate at least the entire area in the width direction of the road 81 via the reflecting mirror 3 and the first window portion 12. Exit. The second lamp 2 </ b> B emits light L <b> 2 in a range q that can illuminate the ceiling portion 82 through the second window portion 14. Similarly, the first lamp 2A of the lighting device 1 installed on the right side of the road 81 has a range s that can illuminate at least the entire area in the width direction of the road 81 through the reflecting mirror 3 and the first window portion 12. Light L1 is emitted. The second lamp 2 </ b> B emits light L <b> 2 in a range t that can illuminate the ceiling portion 82 through the second window portion 14.

  The lighting device 1 is installed at a position having a height j lower than the height v of the average driver's line of sight of a small car traveling on the road 81. The height v is, for example, 1.2 m, and the height j is, for example, about 1.1 m. In addition, each part of the lighting device 1 can be adjusted so that the lights L1 and L2 do not reach the eyes of the driver of the vehicle 9 traveling on the road 81. For example, the shape, arrangement, posture, and the like of the first lamp 2A, the reflecting mirror 3, and the first window 12 are adjusted in an integrated manner so that the light L1 does not travel higher than the horizontal.

  Further, the second lamp 2B and the second window portion 14 are integrally adjusted in shape, arrangement, posture, etc. so that the light L2 is not directly irradiated to a large vehicle such as a trailer traveling in the nearest lane. . For example, if a large vehicle has a height k, the left side lighting device 1 does not directly irradiate the light L2 in the range of the angle r from the horizontal plane and the right side lighting device 1 within the angle u. When the height k is 3.5 m, the angle r is about 34 ° and the angle u is about 63 °, for example. The illuminating devices 1 on both sides emit light L2 to the ranges q and t that are partially overlapped with each other so that at least the ceiling portion 82 located above the road 81 can be illuminated by the second lamp 2B.

  Between the light L1 and L2, the range in which the light L1 and L2 do not travel directly from the lighting device 1 is the upper front and upper surface of the housing 11 located between the first window portion 12 and the second window portion 14. It becomes a shadow of the light shielding part 16 from the front. The light blocking unit 16 blocks the light L1 and L2 that travel directly from the lighting device 1 to the eyes of the driver of the vehicle 9 such as a large vehicle or a small vehicle.

  The lighting device 1 can finely adjust the irradiation range of the light L <b> 1 in the construction scene of the tunnel 8 because the posture of the housing 11 can be adjusted using the installation tool 51 and the installation table 53. In addition, the lighting device 1 can finely adjust the irradiation range of the light L2 in the construction scene of the tunnel 8 because the holding member 4 can be used to adjust the posture of the second lamp 2B. Note that the fine adjustment of the through hole 40 of the holding member 4 is further facilitated by bringing the through hole 40 closer to the second window portion 14 with respect to the light source portion 21.

  According to the illuminating device 1 which concerns on embodiment of this invention, it illuminates the ceiling part and road of a tunnel, without disturbing a driver | operator's visual field by radiating | emitting light in two directions from the low position in a tunnel. Can do. Thereby, the safety | security and comfort when a vehicle drive | works the inside of a tunnel can be improved. Moreover, since the illuminating device 1 is installed in a low position, it is not necessary to regulate lanes for work at a high place during inspection or the like, and maintenance is easy.

(Other embodiments)
As mentioned above, although this invention was described by embodiment, it should not be understood that the description and drawing which form a part of this indication limit this invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, in the embodiment already described, the first window portion 12 may include a prism plate 15 formed inside the transmission plate 121 as shown in FIGS. The prism plate 15 has a plurality of semi-cylindrical flanges 151 formed in the vertical direction on the outer surface, and thereby refracts the light L <b> 1 in the front-rear direction in the traveling direction of the road 81. Thereby, the light L1 is diffused in the traveling direction of the road 81, and the installation interval of the illumination device 1 can be widened.

  Further, the prism plate 15 may be a prism plate 15a having a triangular prism-shaped flange 152 formed so that the light L1 is refracted in the traveling direction of the road 81 as shown in FIG. Thereby, since the light L1 is irradiated to the back of the vehicle 9 traveling on the road 81, the visibility from the following vehicle can be improved.

  In addition to the above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2A 1st lamp | ramp 2B 2nd lamp | ramp 3 Reflector 8 Tunnel 9 Vehicle 11 Housing | casing 12 1st window part 14 2nd window part 15,15a Prism plate 16 Light-shielding part 81 Road 82 Ceiling part

Claims (5)

A lighting device installed at a position lower than the driver's eyes of a vehicle traveling on the road on the side of the road in the tunnel,
A housing having a first window provided on the road side front surface and a second window provided on the upper surface;
A first lamp fixed to the inside of the housing and illuminating the road through the first window;
The posture is adjustable by being fixed within the casing and rotated within a predetermined range with respect to a rotation axis along the extending direction of the road, and the tunnel ceiling through the second window. And a second lamp for illuminating the illumination device.   The lighting device according to claim 1, wherein a posture of the housing can be adjusted by being rotated within a predetermined range with respect to a rotation axis along the extending direction of the road.   A light-shielding part that is located between the first window part and the second window part, and that shields light emitted from the first lamp and the second lamp and traveling toward the driver of the vehicle traveling on the road; The lighting device according to claim 1 or 2.   The illumination according to any one of claims 1 to 3, wherein the first window part is formed with a prism plate that refracts light emitted from the first lamp in a direction in which the road extends. apparatus.   2. The apparatus according to claim 1, further comprising a reflecting mirror that is fixed to the inside of the casing, reflects the light emitted from the first lamp, and irradiates the road through the first window. The illuminating device of any one of -4.

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