JP2005284532A - Lighting unit for traffic signal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting unit for a traffic signal which is satisfactory in assembly operability by integrating a light source into a unit for integral dealing. <P>SOLUTION: A front cover body 40 through which a light source 21 is peeked from the front part and a rear cover body 50 covering a light source unit 20 from the rear part are united from the front and rear parts so that the light source 20 can be housed. An outer peripheral part 25 of the light source 20 is butted to a receiving face 41a of the front cover body 40, and a plurality of presser lugs 30 for pressing an outer peripheral edge part 25 are arranged at a plurality of parts. The presser lug 30 is provided with a presser part 35 supported by inserting a screw 32 erected at an edge part 42 of the front cover body 40, and pressed by a thumbscrew 31 to be screwed so as not to be pulled out of a widened head part 32a of the screw 32 for press-fitting the light source unit 20. The presser part 35 is formed so as to be convertible between the holding position of the presser part 35 to press the light source unit 20 and the opening position of the presser part 35 to escape from the light source unit 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a traffic signal lamp that includes a light source unit including a light source and a drive circuit unit and is installed at a key point of traffic facilities.

As a conventional technique, for example, there is a technique shown in Patent Document 1.
That is, Japanese Patent Application Laid-Open No. 2002-216295 of Patent Document 1 includes a box-shaped lamp body containing a reflecting mirror and a lamp, and a front lid on which a lens is mounted. A technique is disclosed in which a pair of bearing portions are formed to protrude at symmetrical positions of the upper edge and the lower edge of the lid, and the lamp body and the front lid are coupled.

JP 2002-216295 A

  However, in such a conventional technique, the lens is mounted on the front cover and the lens is separated from the lamp body, so the light source cannot be handled as one unit, and the positional accuracy between the lens and the light source However, there was a problem that the assembly workability was poor.

  The present invention has been made paying attention to such problems of the conventional technology, and provides a traffic signal lamp that can be united with a light source and can be handled integrally. The purpose is that.

The gist of the present invention for achieving the object lies in the inventions of the following items.
[1] A traffic signal lamp (10) installed in an important part of a traffic facility with a light source unit (20) including a light source (21) and a drive circuit unit (22),
A front cover body (40) that allows the light source (21) to be viewed from the front and a rear cover body (50) that covers the light source unit (20) from the rear are combined from the front and back to house the light source unit (20). ,
The front cover body (40) closely contacts the rear cover body (50) and a ring hole (41) that allows the light source (21) to be viewed and is in close contact with the front outer periphery of the light source unit (20). An edge (42) and a receiving surface (41a) of the light source unit (20),
An outer peripheral edge (25) of the light source unit (20) is brought into contact with a receiving surface (41a) of the front cover body (40), and a presser claw (30) for pressing the outer peripheral edge (25) from behind is provided. Arranged in multiple locations,
The presser claw (30) is supported by inserting a screw (32) erected on an edge (42) of the front cover body (40), and the head ( 32a) having a holding part pressed by a thumbscrew (31) screwed so as not to come off from the light source unit (20), the holding part holding the light source unit (20); A traffic signal lamp (10) characterized in that it can be switched to an open position for escaping from the light source unit (20).

  [2] The presser claw (30) is characterized in that when the thumbscrew (31) is tightened, an end thereof is caught by a part of the front cover body (40) and is prevented from rotating. The traffic signal lamp according to claim 1 (10).

The present invention operates as follows.
A traffic signal lamp (10) according to the present invention is installed at a key point of traffic facilities, supplies power from a drive circuit unit (22) to a light source (21), blinks, and guides traffic.

  The light source unit (20) is hermetically housed by combining the front cover body (40) and the rear cover body (50) covering from the rear from the front and rear. The edge (42) of the front cover body (40) is in close contact with the rear cover body (50), and the ring hole (41) of the front cover body (40) is in close contact with the outer periphery of the front portion of the light source unit (20). To do. Thereby, a front cover body (40) and a rear cover body (50) couple | bond together closely, without forming the protrusion part to the exterior.

The light source unit (20) is assembled to the front cover body (40) as follows.
The presser pawls (30) disposed at a plurality of locations on the edge (42) of the front cover body (40) so as to press and hold the light source unit (20) from the rear have the presser part (35) disposed on the light source unit (35). 20) Set to an open position to escape from.

  In this state, the outer peripheral edge portion (25) of the light source unit (20) is brought into contact with the receiving surface (41a) of the front cover body (40), and the presser claw (30) is moved to the light source unit (20). ) Change to the holding position to hold down. The presser claw (30) is turned around the screw (32) that is erected and inserted through the edge (42) of the front cover body (40). After the presser claw (30) is changed to the holding position, the thumbscrew (31) screwed so as not to come off from the widened head (31a) of the screw (32) is turned to turn the presser claw (30). Push it in.

  When the thumbscrew (31) is sufficiently rotated, the presser claw (30) moves, and the end of the presser claw (30) is caught by a part of the front cover body (40) and is prevented from rotating. When the thumbscrew (31) is further rotated, the presser portion (35) of the presser claw (30) moves the outer peripheral edge (25) of the light source unit (20) to the ring hole (41) of the front cover body (40). Is pressed against and held by the receiving surface (41a).

  When removing the light source unit (20) from the front cover body (40), the thumbscrew (31) is rotated in the opposite manner. Since the end portion of the presser claw (30) is caught by a part of the front cover body (40) and is prevented from rotating, the presser claw (30) does not rotate together and the operation is easy. When the thumbscrew (31) is sufficiently rotated in the loosening direction, the presser claw (30) is lifted from the outer peripheral edge (25) of the light source unit (20), so that the presser claw (30) is changed to the open position. Thereby, the light source unit (20) can be removed from the front cover body (40).

  For the light source (21), the front portion is viewed from the ring hole (41) of the front cover body (40) so that the light source (21) can be visually recognized from the outside, and power is supplied from the drive circuit portion (22) to the light source (21). And give traffic guidance.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.
Each figure shows an embodiment of the present invention.
The traffic signal lamp 10 is installed at a key point of the traffic facility, and the form is as shown in FIGS. 7 and 8, and is usually composed of three sets of blue, yellow, and red. The set has the same configuration, and the light source unit 20 is housed by combining a front cover body 40 that allows the light source 21 to be viewed from the front and a rear cover body 50 that covers the light source unit 20 from the rear. A hood 15 is attached to the cover body 40.

  As can be seen from FIGS. 1 to 4, the light source unit 20 includes a light source 21, which is an LED (light emitting diode), a drive circuit unit 22, and a front lens body 23. The front cover body 40 includes a ring hole 41 and a receiving surface 41 a that open the lens body 23 of the light source unit 20 forward, and an edge 42 that is in close contact with the rear cover body 50. After passing through the ring hole 41, the outer peripheral edge 25 is pressed against the receiving surface 41 a, and the outer peripheral edge 25 of the light source unit 20 is subsequently pressed by the presser claw 30 and fixed by the thumbscrew 31.

  Screws 32 are erected on the edge portion 42 of the front cover body 40, and the presser claws 30 disposed at a plurality of positions so as to press the outer peripheral edge portion 25 of the light source unit 20 from behind are inserted therethrough. It is supported. A thumbscrew 31 is screwed onto the screw 32 so as not to come out of the widened head portion 32a.

  The presser claw 30 includes a presser portion 35 that is pressed by a thumbscrew 31 and press-contacts the light source unit 20. The presser portion 30 is bent from the base portion 34, and an engaging end portion 36 is provided on the opposite side of the presser portion 35 of the base portion 34. It is bent from 34 and extended. The engagement end portion 36 is provided with an engagement end 37 at the time of tightening and an engagement end 38 at the time of removal. Further, the presser claw 30 is urged toward the head portion 32 a of the screw 32 by a spring 39 inserted into the screw 32.

  The engaging end 38 is set to have a shorter foot length than the engaging end 37. Engagement ribs 43 are provided on the edge 42 of the front cover body 40, and an engagement groove 39 between the engagement end 38 and the engagement end 37 is fitted into the engagement rib 43. ing. The presser claw 30 is pivotally supported by a screw 32 and can be switched between a holding position where the presser part 35 presses the outer peripheral edge 25 of the light source unit 20 and an open position where the presser claw 30 escapes from the outer peripheral edge 25 of the light source unit 20.

  When the thumbscrew 31 is tightened, the presser claw 35 is locked by the engagement end 38 and the engagement end 37 being end portions being caught by the engagement rib 43 being a part of the front cover body 20. It is like that.

  The rear cover body 50 includes a front edge 52 at the front of a box-shaped storage 51 that covers the light source unit 20 from the rear. The front cover body 40 and the rear cover body 50 are connected to each other in a hinge-like manner so that the edge 42 of the front cover body 40 protrudes rearward. A receiving recess 55 into which the protrusion 45 is fitted is provided.

  The connecting projection 45 of the edge 42 of the front cover body 40 is provided with a shaft hole 45a into which the hinge pin 46 is fitted, and the front edge 52 of the rear cover 50 crosses the receiving recess 55. A pin receiving groove 56 for receiving and holding the hinge pin 46 of the front cover body 40 is formed.

  When the front cover body 40 and the rear cover body 50 are joined together, the hinge pin 46 is screwed into the front edge 52 of the rear cover body 50 with a screw 57a in a state where the front cover body 40 is opened in the shape of a turning door. Stop.

  By fitting the connecting projection 45 of the front cover body 40 into the receiving recess 55 of the rear cover body 50 and connecting it in a hinge shape by the hinge pin 46, the front cover body 40 can be opened and closed like a sliding door and closed. When this occurs, the front cover body 40 and the rear cover body 50 are intimately coupled without forming a projecting portion to the outside.

  The end of the front cover body 40 and the rear cover body 50 on the opposite side to the side where the hinge is joined is secured to the pin 47 with a screw 47a using a presser fitting 57.

Next, the operation will be described.
The traffic signal lamp 10 is installed at a key point of traffic facilities, supplies power from the drive circuit unit 22 to the light source 21, and blinks to guide traffic.

  The front cover body 40 and the rear cover body 50 are joined by fitting a connecting projection 45 provided on the edge 42 of the front cover body 40 so as to protrude rearward into the receiving recess 55 of the rear cover body 50. To do. The light source unit 20 is hermetically housed by combining a front cover body 40 and a rear cover body 50 covering from the rear from the front and rear. The edge 42 of the front cover body 40 is in close contact with the rear cover body 50, and the ring hole 41 of the front cover body 40 is in close contact with the front outer periphery of the light source unit 20. Thereby, the front cover body 40 and the rear cover body 50 are closely coupled without forming a protruding portion to the outside.

  The front cover body 40 includes a ring hole 41 and a receiving surface 41 a that open the lens body 23 of the light source unit 20 forward, and an edge 42 that is in close contact with the rear cover body 50. After passing through the ring hole 41, the outer peripheral edge 25 is pressed against the receiving surface 41 a, and the outer peripheral edge 25 of the light source unit 20 is subsequently pressed by the presser claw 30 and fixed by the thumbscrew 31.

  When the light source unit 20 is assembled to the front cover body 40, as shown in FIGS. 5 (a) and 5 (b), the edge 42 of the front cover body 40 is held so as to hold the light source unit 20 from behind. The presser claws 30, 30... Arranged at a plurality of locations are converted to an open position where the presser portion 35 escapes from the outer peripheral edge portion 25 of the light source unit 20.

  In this state, the outer peripheral edge 25 of the light source unit 20 is brought into contact with the receiving surface 41 a of the ring hole 41 of the front cover body 40, and the presser claw 30 is changed to a holding position where the presser 35 holds the light source unit 20. The presser pawl 30 is turned around the screw 32 that is erected on the edge 42 of the front cover body 40 and is inserted into the holding position. After the presser claw 30 changes to the holding position, the presser claw 30 is pushed in by turning the thumbscrew 31 screwed so as not to come off from the widened head portion 32a of the screw 32.

  When the thumbscrew 31 is sufficiently rotated, the presser claw 30 moves, and the engagement end 37 of the engagement end 36 of the presser claw 30 is caught by the engagement rib 43 that is a part of the front cover body 40. It is prevented from rotating. When the thumbscrew 31 is further rotated, the engagement groove 39 between the engagement end 38 and the engagement end 37 is fitted into the engagement rib 43, and the presser portion 35 of the presser claw 30 is moved outside the light source unit 20. The peripheral edge 25 is pressed against the receiving surface 41a of the ring hole 41 of the front cover body 40 and held.

  When the light source unit 20 is removed from the front cover body 40, as shown in FIGS. 6 (a) to 6 (c), the thumbscrew 31 is rotated in the opposite direction. Since the end portion of the presser claw 30 is caught by the engaging end 38 which is a part of the front cover body 40 and is prevented from rotating, the presser claw 30 does not rotate together and the operation is easy. When the thumbscrew 31 is sufficiently rotated in the loosening direction, the presser claw 30 is lifted from the outer peripheral edge 25 of the light source unit 20 by the biasing force of the spring 39, so that the presser claw 30 is changed to the open position. Thereby, the light source unit 20 can be removed from the front cover body 40.

  The light source 21 is seen from the ring hole 41 of the front cover body 40 so that the light source 21 can be visually recognized from the outside, and power is supplied from the drive circuit unit 22 to the light source 21 to blink and guide traffic.

It is a description principal part sectional drawing of the traffic signal lamp device which concerns on one embodiment of this invention. 1 is a perspective view of a presser claw of a traffic signal lamp according to an embodiment of the present invention. 1 is an exploded explanatory cross-sectional view of a traffic signal lamp according to an embodiment of the present invention. It is a front view of the front cover body of the traffic light lamp according to an embodiment of the present invention. It is an explanation perspective view at the time of wearing of a light source unit of a traffic signal lamp concerning one embodiment of the present invention. It is a description perspective view at the time of removal of the light source unit of the traffic signal lamp device which concerns on one embodiment of this invention. It is a front view of the lighting device for traffic signals concerning one embodiment of the present invention. 1 is a side view of a traffic signal lamp according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Traffic light lamp 20 ... Light source unit 21 ... Light source 22 ... Drive circuit part 23 ... Lens body 25 ... Outer peripheral edge part 30 ... Pressing claw 31 ... Thumb screw 32 ... Screw 32a ... Head 35 ... Pressing part 36 ... Engagement Joint end 40 ... Front cover body 41 ... Ring hole 41a ... Receiving surface 42 ... Edge 43 ... Engagement rib 45 ... Connecting projection 45a ... Shaft hole 46 ... Hinge pin 47 ... Pin 47a ... Screw 50 ... Rear cover body 51 ... Storage part 52 ... Front edge 55 ... Receiving recess 56 ... Pin receiving groove 57 ... Presser fitting

Claims (2)

A traffic signal lamp that is installed at a key point of a traffic facility with a light source unit including a light source and a drive circuit unit,
A front cover body that allows the light source to be viewed from the front and a rear cover body that covers the light source unit from the back are combined from the front and back to store the light source unit,
The front cover body includes a ring hole that allows the light source to be viewed and is in close contact with the outer periphery of the front portion of the light source unit, an edge that is in close contact with the rear cover body, and a receiving surface of the light source unit.
The outer peripheral edge of the light source unit is brought into contact with the receiving surface of the front cover body, and presser claws that hold the outer peripheral edge from behind are disposed at a plurality of locations,
The presser claw is supported by a screw erected on the edge of the front cover body, and is pressed by a thumbscrew that is screwed so as not to come off from the widened head of the screw. A traffic signal lamp, comprising: a pressing part that presses against the light source, wherein the pressing part can be switched between a holding position for pressing the light source unit and an open position for escaping from the light source unit.   The traffic light lamp according to claim 1, wherein when the thumbscrew is tightened, an end portion of the presser claw is caught by a part of the front cover body and is prevented from rotating.

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