JP4400701B2 - lighting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting fixture having a lamp socket attached to a fixture body.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a lighting fixture structure in which a pair of lamp sockets is attached to end plates at both ends of a fixture body, and a straight tube lamp is connected between the pair of lamp sockets.
[0003]
To attach the lamp socket to the fixture body, a plurality of mounting holes are drilled in the end plate of the fixture body, and a plurality of locking claws protruding from the lamp socket are inserted into the mounting holes and locked. .
[0004]
In the case of a lamp socket that is attached to the end plate of the fixture body with a locking claw, a leaf spring that urges the lamp socket in a direction away from the end plate is provided on the surface on which the locking claw of the lamp socket projects. By absorbing the variation in the distance between the end plates at both ends, the distance between the pair of lamp sockets when the lamp is connected is made constant.
[0005]
[Problems to be solved by the invention]
In such a luminaire, when the lamp is turned off while the lamp is turned off and the luminaire is at room temperature, the temperature of each member of the luminaire increases rapidly due to the heat generated by the lamp. Further, even when the lamp is turned on and the lamp is turned off in a state where the temperature of the lighting fixture has risen, the heat of each member causes the temperature of each member to rapidly decrease.
[0006]
The fixture body expands or contracts due to a rapid temperature change when the lamp blinks, especially in lighting fixtures that use straight tube lamps, which are long in both directions and the distance between the end plates at both ends tends to change. .
[0007]
When the distance between the end plates at both ends of the fixture body changes, a shift occurs between the mounting hole of the end plate and the locking claw of the lamp socket locked in this mounting hole. There is a problem that squeak noise is generated.
[0008]
This is because the mounting portion of the cut portion that has been sheared by the drilling process faces the inner edge, so that the locking claw is caught on this cut portion, and there is no deviation when there is little thermal deformation of the instrument body, When the thermal deformation becomes large, the hooks come off and shift all at once, generating abnormal noise.
[0009]
This invention is made | formed in view of such a point, and it aims at providing the lighting fixture which can suppress generation | occurrence | production of the abnormal noise accompanying the temperature change at the time of a lamp blink state switching.
[0010]
[Means for Solving the Problems]
Lighting device according to claim 1, wherein the instrument body and having a mounting hole; equipped than the inner diameter of the intake Tsukeana shaft portion of the small-diameter, the claw portion to be locked to the edge of projecting from the distal end of the shaft portion mounting hole A lamp socket with a locking claw, which is attached to the instrument body so as to cover the mounting hole, and a hole having a smaller diameter than the mounting hole is provided corresponding to the position of the mounting hole, and the locking claw is inserted into the mounting hole In this case, the peripheral portion of the hole includes a cushioning material that is folded into the inner edge of the mounting hole and interposed between the inner edge of the mounting hole and the shaft portion of the locking claw.
[0011]
Then, through the engagement claws of the lamp socket when inserted into the mounting hole, the peripheral portion of the hole portion of the cushioning material is folded to the inner edge of the mounting hole between the shaft portion of the inner edge and the locking claw of the mounting hole to be standing, the misalignment between the mounting hole and the locking claw and smoothly possible, generation of abnormal noise due to temperature changes such as a lamp blinking switching is suppressed, thus, abnormal noise suppression with a simple structure In addition, the assembly workability is improved.
[0012]
The lighting fixture according to claim 2 is the lighting fixture according to claim 1, wherein the fixture body has a mounting plate , and the mounting hole is formed by narrowing one surface of the mounting plate to the inner edge side. is there.
[0013]
And because the mounting hole of the mounting plate of the instrument body is narrowed down to the inner edge side of the mounting hole on one surface of the mounting plate, the contact resistance between the mounting hole and the locking claw is reduced, and the lamp blinking state is switched, etc. Occurrence of abnormal noise accompanying the temperature change is suppressed.
[0014]
Luminaire according to claim 3, requests in claim 1 or 2 luminaire according one end of the straight tube lamp on one side of the lamp socket lamp connecting portion is provided to be connected, the locking claw to the other surface collision A spring is provided that is urged in a direction in which the lamp connecting portion is separated from the fixture main body that is provided and is attached with a locking claw.
[0015]
And even when the lamp socket is urged by a spring in a direction away from the fixture body and the straight tube lamp connected to the lamp connection portion of the lamp socket is held, the generation of abnormal noise is reliably suppressed. .
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
1 to 4 show an embodiment of a lighting fixture. FIG. 1 is a perspective view of a part of the fixture body, a cushioning material and a lamp socket in an exploded state, and FIG. 2 is a perspective view of a part of the fixture body and the cushioning material. (A) is a sectional view before the lamp socket is assembled, (b) is a sectional view when the lamp socket is assembled, and FIG. 3 is a longitudinal sectional view of the lighting fixture. 4 is a cross-sectional view in a direction crossing the longitudinal direction of the lighting fixture.
[0018]
As shown in FIGS. 3 and 4, the lighting fixture is an embedded lighting fixture embedded in a ceiling surface or the like, and two lamps using two straight tube fluorescent lamps L as straight tube lamps. It is a type and is formed in a long shape corresponding to the longitudinal direction of the straight tube fluorescent lamp L.
[0019]
The fixture body 11 of the lighting fixture is made of metal and is formed in a box shape having a top plate 12, side plates 13 on both sides, and end plates 14 on both ends, an irradiation opening 16 is formed on the lower surface, and a peripheral edge is formed on the periphery. An edge portion 15 having a substantially L-shaped cross section is formed.
[0020]
The inner surface of the both end plates 14 of the instrument body 11 is connected to each end of each straight tube fluorescent lamp L corresponding to the position of each straight tube fluorescent lamp L arranged in the instrument body 11. Lamp sockets 17 are mounted side by side in parallel. In addition, the top plate 12 covers the lighting device 18 for lighting the straight tube fluorescent lamp L between the straight tube fluorescent lamps L on both sides arranged in the instrument body 11, and the lighting device 18 and the like. A reflecting plate 19 having a substantially V-shaped cross section is attached.
[0021]
As shown in FIGS. 1 and 2, a plurality of mounting holes 21 are formed in both end plates 14 of the instrument body 11 corresponding to the mounting positions of the lamp sockets 17. These mounting holes 21 are substantially circular and are formed in parallel in the horizontal direction parallel to the irradiation opening 16 in pairs corresponding to each lamp socket 17.
[0022]
The lamp socket 17 has a socket body 23 made of, for example, a synthetic resin having insulation properties, and a lamp connection portion 24 to which a straight tube fluorescent lamp L is connected is formed on one surface of the socket body 23. The lamp connecting portion 24 is formed with a connecting groove 25 into which two lamp pins (not shown) projecting from the caps at both ends of the straight tube fluorescent lamp L are inserted, and inserted into the connecting groove 25 through the connecting groove 25. A rotation holding portion 26 that is rotated and held together with the two lamp pins is provided, and a terminal (not shown) to which the two rotated lamp pins are electrically connected is arranged outside the rotation holding portion 26. It is installed.
[0023]
On the other surface of the socket body 23, a plurality of locking claws 27 that are locked in the respective mounting holes 21 are projected. The locking claws 27 are formed as a pair and are integrally formed on both sides of the socket body 23, and have a substantially cylindrical shaft portion that is smaller than the inner diameter of the mounting hole 21 and protrudes from the other surface of the socket body 23. 28, and a claw portion 29 projecting from the tip of the shaft portion 28 toward the outer side of the socket body 23 and locked to the edge of the mounting hole 21, and the tip is formed in a substantially spherical shape. Yes. The distance between the opposite outer sides of the shaft portions 28 of the both locking claws 27 is formed to be substantially the same as or slightly larger than the distance between the opposite outer edges of the inner edges of the two mounting holes 21. The interval between the opposite sides of the part 29 is formed larger than the interval between the opposite sides of the inner edges of the mounting holes 21.
[0024]
A spring 30 is attached to the other surface of the socket body 23 to bias the socket body 23 away from the end plate 14. The spring 30 is a metal leaf spring, for example, and is bent so that an intermediate portion is fixed to the other surface of the socket body 23 and both ends are separated from the other surface of the socket body 23. Insertion holes 31 through which the locking claws 27 are inserted are formed at both ends of the spring 30, and contact portions 32 that are bent into a substantially L-shaped section and contact the surface of the end plate 14 are formed. Yes.
[0025]
Before the lamp socket 17 is attached, a tape 35 as a cushioning material is attached to the attachment position of each lamp socket 17 on the end plate 14 so as to cover the pair of attachment holes 21. The tape 35 is made of a transparent resin material such as a polyester film and is formed in a strip shape so as to cover the pair of mounting holes 21, and an adhesive is applied to the surface to be attached to the end plate 14. Corresponding to the position of each mounting hole 21, a hole 36 having a smaller diameter than the mounting hole 21 is formed, and the pitch of both mounting holes 21 and the pitch of both hole parts 36 are the same. The length of the tape 35 is formed longer than the interval between the contact portions 32 at both ends of the spring 30.
[0026]
At the time of assembling the lighting fixture, as shown in FIG. 2A, the tape 35 is attached to the end plate so that each hole 36 of the tape 35 is aligned with the position of each mounting hole 21 and covers each mounting hole 21. Affix to each 14 lamp socket 17 mounting position.
[0027]
The locking claws 27 of the lamp socket 17 are pushed in according to the positions of the holes 36 of the tape 35 and the mounting holes 21 of the end plate 14. As a result, as shown in FIG. 2 (b), each hole 36 of the tape 35 is pushed open or cut by each locking claw 27 so that the peripheral portion of the hole 36 of the tape 35 is the inner edge of the mounting hole 21. Fold it in.
[0028]
Each locking claw 27 is inserted into the mounting hole 21 while being elastically deformed so that the interval between the locking claws 27 on both sides is narrowed when the claw portion 29 is inserted into the mounting hole 21. By getting over the mounting hole 21, the distance between the claw portions 29 on both sides is elastically expanded, the shaft portion 28 comes into contact with the inner edge of the mounting hole 21, and the claw portion 29 is engaged with the edge portion of the mounting hole 21. Prevent it from coming off. At this time, the portion of the tape 35 folded into the inner edge of the mounting hole 21 is interposed between the inner edge of the mounting hole 21 and the shaft portion 28 of the locking claw 27.
[0029]
The contact portion 32 of the spring 30 elastically contacts the surface of the end plate 14 and urges the lamp socket 17 in a direction away from the end plate 14. At this time, the tape 35 is interposed between the end plate 14 and the contact portion 32 of the spring 30.
[0030]
In a state where the straight tube fluorescent lamp L is not connected, the claw portion 29 of the locking claw 27 is engaged with the edge portion of the mounting hole 21 by the bias of the spring 30. When the straight tube fluorescent lamp L is connected, the lamp socket 17 is pushed in the direction approaching the end plate 14 according to the distance between the lamp sockets 17 at both ends, and the claw portion of the locking claw 27 29 is separated from the edge of the mounting hole 21.
[0031]
When the straight tube fluorescent lamp L is turned on while the straight tube fluorescent lamp L is turned off and the lighting device is at room temperature, the temperature of each member of the lighting device is generated by the heat generated by the straight tube fluorescent lamp L. Causes a rapid temperature rise. Further, even when the straight tube fluorescent lamp L is turned on and the straight tube fluorescent lamp L is turned off in a state where the temperature of the lighting fixture has risen, the heat of each member causes the temperature of each member to rapidly decrease. Come on. The fixture body 11 expands or contracts due to a rapid temperature change at the time of lamp blinking switching. In particular, in a lighting fixture using a straight tube fluorescent lamp L, the fixture body 11 is long in both ends, and the interval between the end plates 14 at both ends is long. Easy to change.
[0032]
When the distance between the end plates 14 at both ends of the fixture body 11 changes, and there is no tape 35 between the mounting holes 21 of the end plate 14 and the locking claws 27 of the lamp socket 17, the mounting of the end plate 14 A shift occurs between the hole 21 and the locking claw 27 of the lamp socket 17 locked in the mounting hole 21, and a squeak noise is generated when the shift occurs.
[0033]
By interposing the tape 35 between the mounting hole 21 of the fixture body 11 and the locking claw 27 of the lamp socket 17, the contact resistance between the mounting hole 21 and the locking claw 27 is reduced. It is possible to smoothly shift the position with respect to the pawl 27 and to suppress the generation of abnormal noise accompanying a temperature change such as when the lamp blinking state is switched.
[0034]
Furthermore, since the tape 35 is also interposed between the end plate 14 of the instrument body 11 and the contact portion 32 of the spring 30, the contact resistance between the end plate 14 and the contact portion 32 of the spring 30 is reduced, and these ends The position of the plate 14 and the contact portion 32 of the spring 30 can be smoothly displaced, and abnormal noise from between the end plate 14 and the contact portion 32 of the spring 30 due to a temperature change such as when the lamp blinks is switched. Generation can be suppressed.
[0035]
Also, if the tape 35 is used as a cushioning material, the portion of the mounting hole 21 is moved by the operation of locking the locking claw 27 to the mounting hole 21 only by covering the mounting hole 21 and attaching the tape 35 to the instrument body 11. It can be folded inside the mounting hole 21, and suppression of abnormal noise can be suppressed with a simple configuration.
[0036]
Further, since the tape 35 to be affixed to the instrument body 11 is provided with a hole 36 having a diameter smaller than that of the mounting hole 21 corresponding to the position of the mounting hole 21, the operation of locking the locking claw 27 to the mounting hole 21 is performed. The engaging claw 27 can be pushed or opened from the hole 36 of the tape 35 and the periphery of the hole 36 of the tape 35 can be folded into the inner edge of the mounting hole 21 to improve the assembling workability.
[0037]
Note that the buffer material is not limited to a tape, and for example, a similar effect can be obtained by using a rubber sheet or the like.
[0038]
FIG. 5 shows another embodiment, and FIG. 5 is a cross-sectional view of a part of the instrument body, a cushioning material, and a lamp socket in an assembled state.
[0039]
Each mounting hole 21 of the end plate 14 as the mounting plate of the instrument body 11 is narrowed from the inner surface side, which is one surface of the end plate 14, to the inner edge side of the mounting hole 21 to form a so-called sink hole shape.
[0040]
By forming the mounting hole 21 in the sink hole, a cut portion that has been sheared by drilling does not reach the inner edge of the mounting hole 21, and a part of the surface of the end plate 14 is squeezed down. In addition, the contact resistance between the mounting hole 21 and the locking claw 27 locked to the mounting hole 21 can be reduced, and the generation of abnormal noise accompanying a temperature change such as when the lamp blinks can be suppressed.
[0041]
Note that by using the cushioning material and the attachment hole 21 of the sink hole in combination, it is possible to more reliably suppress the generation of abnormal noise.
[0042]
【The invention's effect】
According to the lighting apparatus of claim 1, when the locking claw of the lamp socket is inserted into the mounting hole, the peripheral portion of the hole portion of the cushioning material is folded into the inner edge of the mounting hole and locked to the inner edge of the mounting hole. to be mediated standing between the shaft portion of the nail, the misalignment between the mounting hole and the locking claw and facilitates connection, it is possible to suppress the generation of abnormal noise due to temperature changes such as a lamp flashing switching, thus , it is possible to suppress the abnormal noise by a simple structure, thereby improving the assembling workability.
[0043]
According to the lighting fixture of claim 2 , in addition to the effect of the lighting fixture of claim 1, the mounting hole of the mounting plate of the fixture body is narrowed down to one surface of the mounting plate on the inner edge side of the mounting hole. Therefore, it is possible to reduce the contact resistance between the mounting hole and the locking claw, and to suppress the generation of noise due to a temperature change such as when the lamp blinking state is switched.
[0044]
According to the lighting fixture of claim 3 , in addition to the effect of the lighting fixture of claim 1 or 2 , the lamp socket is urged by a spring in a direction away from the fixture body, and the lamp connection portion of the lamp socket is provided. Even when holding a straight tube lamp connected to, the generation of abnormal noise can be reliably suppressed.
[Brief description of the drawings]
FIG. 1 shows an embodiment of a lighting fixture of the present invention, and is a perspective view of a part of the fixture main body, a cushioning material and a lamp socket in an exploded state.
FIG. 2 shows a part of the instrument body, the cushioning material, and the lamp socket, wherein (a) is a cross-sectional view of the state before assembling the lamp socket, and (b) is a cross-sectional view of the state where the lamp socket is assembled.
FIG. 3 is a longitudinal sectional view of the same lighting fixture.
FIG. 4 is a cross-sectional view in a direction intersecting with the longitudinal direction of the luminaire.
FIG. 5 is a cross-sectional view of a part of an instrument body, a cushioning material, and a lamp socket in an assembled state showing another embodiment.
[Explanation of symbols]
11 Instrument body
14 End plate as mounting plate
17 Lamp socket
21 Mounting hole
24 Lamp connection
27 Locking claw
28 shaft
29 claws
30 spring
35 Tape as cushioning material
36 hole

Claims (3)

An instrument body having a mounting hole;
Preparative diameter of the shaft portion than the inner diameter of the Tsukeana, the lamp socket having a locking pawl having a pawl portion to be engaged with the edge of projecting from the distal end of the shaft portion mounting hole;
Attached to the instrument body so as to cover the mounting hole, a hole having a smaller diameter than the mounting hole is provided corresponding to the position of the mounting hole, and when the locking claw is inserted into the mounting hole, the peripheral portion of the hole is A cushioning material that is folded into the inner edge of the mounting hole and interposed between the inner edge of the mounting hole and the shaft portion of the locking claw;
The lighting fixture characterized by comprising . The lighting fixture according to claim 1 , wherein the fixture main body has a mounting plate , and the mounting hole is formed by narrowing one surface of the mounting plate toward the inner edge side. A lamp connecting part to which one end of a straight tube lamp is connected is provided on one side of the lamp socket, and a locking claw is provided on the other side of the lamp socket. claim 1 or 2 lighting instrument according to, characterized in that is provided with a spring for urging in a direction to be.

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