JP5225889B2 - Lamp mounting structure and lighting fixture - Google Patents

Description

  The present invention relates to a lamp mounting structure and a lighting fixture in which a lamp pin erected on a base part is connected to a conductive part of the socket so as to be energized by holding the base part of a straight fluorescent tube in a socket.

As shown in FIG. 9, the conventional lighting fixture 100 is provided with a conductive holding portion 102 as an elastic member in a socket 101, and the fluorescent lamp 103 is directed in a direction orthogonal to the axial direction of the straight fluorescent tube 104. A base part 105 on which a lamp pin 106 is erected is provided.
When the lamp pin 106 is inserted into the socket 101, the lamp pin 106 is inserted between the holding portions 102, whereby the base portion 105 is sandwiched between the elastically deformable holding portions 102 so that the fluorescent lamp 103 can be installed and held in the socket 101.

On the other hand, when the fluorescent lamp 103 is removed from the socket 101, the fluorescent lamp 103 is pulled in a direction away from the socket 101 (ie, downward).
As a result, the lamp pin 106 can be pulled out from the socket 101, and the holding of the base part 105 by the elastically deformable holding part 102 can be released to remove the fluorescent lamp 103 (see, for example, Patent Document 1).

JP 2008-11768 A

Here, in the conventional lighting device 100, the fluorescent lamp 103 is installed and held in the socket 101 by sandwiching the base part 105 with the elastically deformable holding part 102.
For this reason, for example, when the holding part 102 is elastically deformed or plastically deformed, it may be difficult to hold the fluorescent lamp 103 well by the holding part 102.

  An object of the present invention is made in view of the above-described conventional problems, and an object of the present invention is to provide a lamp mounting structure and a lighting fixture that can favorably hold a fluorescent lamp.

The present invention provides a cap part in the vicinity of both ends of a straight tube fluorescent tube of a fluorescent lamp, a lamp pin is erected along the radial direction of the straight tube fluorescent tube, and the lamp pin is a conductive part of a socket. A lamp mounting structure in which the base portion is held by a socket, and the socket is attached to a pair of support portions provided at a predetermined interval and a support hole of the pair of support portions. In addition, a support shaft extending in a direction perpendicular to the longitudinal direction of the straight tube fluorescent tube, a lever rotatably supported by the support shaft, and an elastic force for biasing the lever in a locking direction comprising a coil spring attached to the support shaft of the body, wherein the base part is provided with the lever and lockable projections, the lever, the mouthpiece and the lever main body, from the lower end sides of the lever body To the department A pair of locking claws extended, a pair of mounting portions provided on both sides of the upper end of the lever body, and extended from the pair of mounting portions toward the end of the straight tube fluorescent tube, and a pair of operating portions of rotating in a direction to release the engagement between the projection in a state in which the locking surface is engaged with the projection, the locking claw has a locking surface for the projections and the locking When the base portion formed on the end surface is fitted into the socket, the protrusion abuts against the urging force of the elastic body to rotate the lever in a direction opposite to the protrusion. Each of the pair of mounting holes is formed in the pair of mounting portions, and the pair of mounting holes are engaged with the support shaft, whereby the lever is rotatably engaged with the support shaft. are locked, by the locking surface of the locking claw is engaged with the protrusion, the fluorescent orchid The characterized in that it held in the socket.

  In addition, the present invention is characterized by comprising engagement means for preventing the locking surface from being inadvertently detached from the projection while the locking surface is locked to the projection.

  Furthermore, the present invention is characterized in that the lever is urged by the elastic body in a direction toward the end of the fluorescent lamp in a state where the locking surface is locked to the protrusion.

Further, in the present invention, the pair of operation portions are provided substantially parallel to the straight tube fluorescent tube, and the lever is moved by pressing the pair of operation portions toward the straight tube fluorescent tube. The engagement with the projection is released against the urging force of the elastic body.

Furthermore, the present invention is characterized in that the pair of operation portions are provided directly on the lever.

Further, the present invention is characterized in that the pair of operation portions are indirectly provided on the lever.

  Furthermore, the present invention is a luminaire provided with the lamp mounting structure.

In the present invention, when the cap portion of the fluorescent lamp is fitted into the socket from below, the projection of the cap portion contacts the inclined surface of the lever, so that the lever is opposed to the projection against the biasing force of the elastic body. Can be rotated.
And since a lever can be naturally arrange | positioned on the lower surface of protrusion by the urging | biasing force of an elastic body (coil spring) when getting over an inclined surface, a nozzle | cap | die part can be easily attached to a socket.
In this state, the lever is locked to the protrusion, and the fluorescent lamp can be satisfactorily held by the lever.

  On the other hand, when removing the fluorescent lamp, the lever can be easily removed by removing the lever from the projection by rotating the operation portion provided on the lever in the direction opposite to the projection.

In the present invention, the engaging means for preventing the locking surface from being inadvertently detached from the protrusion is provided. Thereby, the fluorescent lamp can be more securely held in the socket.
Further, when the locking surface is locked to the projection, the click feeling due to the engagement can be obtained by engaging the engaging means.
Thereby, since it can be sensed that the locking surface is locked to the protrusion, the fluorescent lamp can be more easily attached to the socket.

Furthermore, in the present invention, in the state where the lever and the protrusion are locked, the rotation direction of the lever by the urging force of the elastic body is the direction facing the end portion of the straight fluorescent tube.
Therefore, in a state where the fluorescent lamp is held by hand, the lever can be removed from the protrusion by pushing the lever (that is, the operation unit) with the thumb of the hand in a direction away from the end of the fluorescent lamp.
This facilitates operation of the lever with the thumb of the hand holding the fluorescent lamp as the operation of the lever when removing the fluorescent lamp.

Further, in the present invention, the operation portion is provided in the direction opposite to the rotation direction of the locking portion locked to the protrusion of the lever and substantially parallel to the straight tube fluorescent tube.
Therefore, in a state where the fluorescent lamp is held by hand, the lever can be removed from the projection by pushing down the operation portion with the thumb of the hand.
This makes it easier to operate the operation unit with the thumb of the hand holding the fluorescent lamp as the operation of the lever when removing the fluorescent lamp.

Further, in the present invention, the lever is directly provided with the operation portion.
Therefore, the lever and the operation part can be molded as an integral part.
Thereby, an increase in the number of parts can be prevented.

Moreover, in this invention, the operation part was indirectly provided with respect to the lever.
Therefore, the operation part can be separated from both ends of the straight fluorescent tube.
As a result, even in a straight fluorescent tube that is long and cannot be reached at both ends at the same time, an operation section can be provided at a position where it can be operated simultaneously with both hands.

Furthermore, in the present invention, in a lighting fixture having a lamp mounting structure, the fluorescent lamp can be attached and detached inside the width of the fluorescent lamp.
Thereby, a lighting fixture can be installed adjacent to the width direction, it becomes possible to suppress the clearance gap between adjacent fluorescent lamps small, and the light source connected in the width direction is realizable.

The disassembled perspective view which shows the lighting fixture (1st Embodiment) provided with the lamp attachment structure which concerns on this invention. The side view which shows the lighting fixture of 1st Embodiment The side view explaining the operation example which latches the fluorescent lamp of 1st Embodiment to a socket The side view explaining the example which removes the fluorescent lamp of 1st Embodiment from a socket The bottom view which shows the state which provided the lighting fixture of 1st Embodiment in multiple numbers in parallel Side view showing a lamp mounting structure (second embodiment) according to the present invention. Side view showing a lamp mounting structure (third embodiment) according to the present invention. (A) is a side view showing a lamp mounting structure (fourth embodiment) according to the present invention, and (B) is a side view showing a modification of the fourth embodiment. A perspective view showing a conventional lamp mounting structure

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

(First embodiment)
The lighting fixture 10 which concerns on 1st Embodiment is demonstrated.
As shown in FIGS. 1 and 2, the luminaire 10 includes a lamp mounting structure 12 that holds a base portion 18 provided in a straight fluorescent tube 17 of a fluorescent lamp 15 in a socket 16, and a base 14 that supports the socket 16. It is equipped with.
The base 14 is attached to a ceiling (not shown), for example, and is provided with a socket 16.

  In the lamp mounting structure 12, a base portion 18 is provided in the vicinity of both ends of the straight tube fluorescent tube 17 of the fluorescent lamp 15, and a lamp pin 21 is erected on the base portion 18 along the radial direction of the straight tube fluorescent tube 17. 21 is connected to the conductive portion 24 of the socket 16 and holds the base portion 18 in the socket 16.

The fluorescent lamp 15 includes a straight tube fluorescent tube 17 and a base portion 18 provided in the vicinity of both ends 17a (only one end is shown) of the straight tube fluorescent tube 17.
The base portion 18 is formed in a substantially rectangular body, and a lamp pin 21 is provided on the upper surface 18a in a direction perpendicular to the axial direction of the straight tube fluorescent tube 17, and a pair of protrusions 22 that can be locked with a lever 31 described later. Protrudes outward from both side walls 18b.
The protrusion 22 is formed on a horizontal surface in which the bottom surface 22 a is formed substantially horizontally, or an inclined surface that is inclined downward toward the lever 31.

The socket 16 is formed in a substantially rectangular body, an insertion hole into which the lamp pin 21 can be inserted is formed in the lower surface 16a, and a conductive portion 24 is provided in the insertion hole.
When the lamp pin 21 is inserted into the insertion hole and comes into contact with the conductive portion 24 (that is, when the base portion 18 is locked to the socket 16), the conductive portion 24 can be energized (energized state) to the lamp pin 21.

  The socket 16 is attached to a pair of support portions 26 provided at predetermined intervals on an inner wall (a wall opposite to the end portion 17a of the straight fluorescent tube 17) 16b, and a support hole 26a of the pair of support portions 26. A support shaft 27, a lever 31 rotatably supported by the support shaft 27, and a coil spring (elastic body) 33 that urges the lever 31 in the locking direction.

The support shaft 27 is attached to the support holes 26 a of the pair of support portions 26, thereby extending in a direction orthogonal to the longitudinal direction of the straight tube fluorescent tube 17.
A mounting hole 37 a of the lever 31 is rotatably engaged with the support shaft 27.

The lever 31 is provided on a lever body 35 that is formed in a rectangular shape, a pair of locking claws 36 that extend from both sides of the lower end of the lever body 35 toward the base 18, and both sides of the upper end of the lever body 35. And a pair of operation portions 38 extending from the pair of attachment portions 37 toward the end portion 17 a of the straight tube fluorescent tube 17.
Mounting holes 37 a are formed in the pair of mounting portions 37, and the pair of mounting holes 37 a are locked to the support shaft 27, so that the lever 31 is rotatably locked to the support shaft 27.

The locking claw 36 includes a locking surface 36a that locks the protrusion 22, and an inclined surface 36b that is formed on a surface opposite to the locking surface 36a (specifically, an end surface).
The inclined surface 36 b is formed on a horizontal surface or an inclined surface so as to correspond to the bottom surface 22 a of the protrusion 22.
Therefore, the fluorescent lamp 15 can be locked to the socket 16 by locking the locking surface 36 a of the locking claw 36 to the protrusion 22.

The operation unit 38 is a part for rotating the lever 31 in a direction in which the locking claw 36 is unlocked from the protrusion in a state where the locking claw 36 is locked to the protrusion.
The operation unit 38 is provided directly on the lever 31.
Therefore, the operation part 38 and the lever 31 can be molded as an integral part, and an increase in the number of parts can be prevented.

It is also possible to provide the operation unit 38 indirectly on the lever 31.
By providing the operation unit 38 at a position different from the lever 31, the operation unit 38 can be provided at a position where it can be operated simultaneously with both hands even in a straight fluorescent tube which is long and cannot be reached at both ends at the same time.

  The coil spring 33 is an elastic body that urges the lever 31 in a direction toward the end 17 a of the fluorescent lamp 15 (that is, a locking direction), and is attached to the support shaft 27 and provided on the inner wall 16 b of the socket 16. The locking portion 41 is locked by inserting one end 33 a and the locking portion 42 provided on the lever body 35 is locked by inserting the other end 33 b.

  According to the lamp mounting structure 12, in a state where the locking claw 36 and the protrusion 22 are locked, the rotation direction of the lever 31 by the urging force of the coil spring 33 is the direction toward the end of the fluorescent lamp. Has been.

  In addition, the operation portion 38 is provided in the direction opposite to the rotation direction of the locking surface (locking portion) 36 a that locks the protrusions 22 of the lever 31 and substantially parallel to the straight tube fluorescent tube 17. ing.

Next, an operation example for locking the fluorescent lamp 15 to the socket 16 will be described with reference to FIGS.
In FIG. 3A, the protrusion 22 abuts on the inclined surface 36 b of the locking claw 36 by pushing up the fluorescent lamp 15 toward the socket 16 (see FIG. 2).
As the protrusion 22 continues to rise in the direction of arrow A, the protrusion 22 presses the inclined surface 36b.

In FIG. 3B, the protrusion 22 presses the inclined surface 36b, whereby the lever 31 rotates in the direction of arrow B against the urging force of the coil spring 33 about the support shaft 27.
As the protrusion 22 continues to rise in the direction of arrow A, the protrusion 22 rises while pressing the inclined surface 36b.

In FIG. 3C, when the protrusion 22 gets over the inclined surface 36b, the lever 31 rotates in the direction of arrow C with the urging force of the coil spring 33 about the support shaft 27.
Thereby, the locking surface 36a of the locking claw 36 is locked (locked) with the protrusion 22, and the fluorescent lamp 15 is locked to the socket 16 (see FIG. 2).

  As described with reference to FIGS. 3A to 3C, when the base portion 18 of the fluorescent lamp 15 is fitted into the socket 16 from below, the protrusion 22 of the base portion 18 contacts the inclined surface 36 b of the lever 31 ( By abutting), the lever 31 can be rotated in the direction opposite to the protrusion 22 against the urging force of the coil spring 33.

Since the lever 31 can be naturally disposed on the lower surface of the projection 22 by the biasing force of the coil spring 33 when the projection 22 gets over the inclined surface 36b, the base portion 18 can be easily attached to the socket 16.
In this state, the locking surface 36 a of the lever 31 is locked to the protrusion 22, so that the fluorescent lamp 15 can be satisfactorily held by the lever 31.

Next, an operation for removing the fluorescent lamp 15 from the socket 16 will be described with reference to FIGS.
As shown in FIG. 2, in the state where the lever 31 (specifically, the locking surface 36a) and the protrusion 22 are locked, the rotation direction of the lever 31 by the biasing force of the coil spring 33 is changed to the socket 16 (straight tube fluorescent tube). 17 (direction of arrow 17) toward the end 17a).

Therefore, as shown in FIG. 4, in a state where the fluorescent lamp 15 is held by the hand 45, the lever 31 (that is, the operation unit 38) is separated from the end portion 17 a of the straight fluorescent tube 17 with the thumb 46 of the hand 45. The locking surface 36a of the lever 31 can be removed from the protrusion 22 by pushing to the right.
As a result, it is easy to operate the lever 31 with the thumb 46 of the hand 45 holding the fluorescent lamp 15 as the operation of the lever 31 when removing the fluorescent lamp 15.

Further, the operation unit 38 is provided in a direction opposite to the rotation direction of the locking surface 36 a that locks the protrusions 22 of the lever 31 and substantially parallel to the straight fluorescent tube 17.
Therefore, in a state where the fluorescent lamp 15 is held by the hand 45, the operation unit 38 can be pushed down as indicated by the arrow D with the thumb 46 of the hand 45.
By depressing the operating portion 38 downward, the lever 31 rotates in the direction of arrow E against the urging force of the coil spring 33 about the support shaft 27.

Therefore, the locking surface 36 a of the locking claw 36 is separated from the projection 22, and the lever 31 can be detached from the projection 22 in the direction of arrow E.
Thereby, as the operation of the lever 31 when removing the fluorescent lamp 15, it becomes easier to operate the operation unit 38 with the thumb 46 of the hand 45 holding the fluorescent lamp 15.

Furthermore, as shown in FIG. 5, the fluorescent lamp 15 can be attached and detached inside the width of the fluorescent lamp 15 by providing the lighting fixture 10 with the lamp mounting structure 12.
Thereby, the lighting fixture 10 can be installed adjacent to the width direction, the gap S between the adjacent fluorescent lamps 15 can be kept small, and a light source connected in the width direction can be realized.

  Next, a second embodiment to a fourth embodiment will be described with reference to FIGS. In the second embodiment to the fourth embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

(Second Embodiment)
A lamp mounting structure 50 according to the second embodiment will be described.
As shown in FIG. 6, the lamp mounting structure 50 includes engagement means 52 that prevents the locking surface 36 a from being accidentally detached from the protrusion 22 in a state where the locking surface 36 a is locked to the protrusion 22. However, the other configuration is the same as that of the lamp mounting structure 12 of the first embodiment.

The engaging means 52 includes a convex portion 53 provided on the locking surface 36 a and a concave portion 54 provided on the projection 22 and engageable with the convex portion 53.
Thus, when the locking surface 36a is locked to the protrusion 22, the convex portion 53 is engaged with the concave portion 54, and the locking surface 36a is prevented from being inadvertently detached from the protrusion 22, and the fluorescent lamp 15 ( 1) can be more securely held in the socket 16.

Further, when the locking surface 36 a is locked to the protrusion 22, the click feeling due to the engagement is obtained by engaging the concave portion 54 and the convex portion 53.
Thereby, since it can be sensed that the locking surface 36a is locked to the protrusion 22, the fluorescent lamp 15 (see FIG. 1) can be attached to the socket 16 more easily.

In the second embodiment, the example in which the protrusion 53 is provided on the locking surface 36a and the recess 54 is provided on the protrusion 22 has been described. However, the present invention is not limited thereto, and the protrusion 54 is provided on the locking surface 36a. It is also possible to provide a convex portion 53 on 22.
Alternatively, the protrusions 53 are provided on the locking surface 36 a and the protrusion 22, respectively. When the locking surface 36 a is locked to the protrusion 22, the protrusion of the locking surface 36 a gets over the protrusion 53 of the protrusion 22. It is also possible to configure so that the convex portion of the stop surface 36 a is engaged with the convex portion 53 of the protrusion 22.

(Third embodiment)
A lamp mounting structure 60 according to the third embodiment will be described.
As shown in FIG. 7, the lamp mounting structure 60 uses a lever 61, a protrusion 62, and a tension spring (elastic body) 63 instead of the lever 31, the protrusion 22, and the coil spring 33 of the first embodiment. Other configurations are the same as the lamp mounting structure 12 of the first embodiment.

The lever 61 is obtained by replacing the locking claw 36 provided in the lever 31 of the first embodiment with a C-shaped locking claw 64.
The C-shaped locking claw 64 is formed in a substantially C shape, so that an accommodation recess 65 facing the protrusion 62 is provided, and an inclined surface 64a is formed at the bottom.
A tension spring 63 is hooked on the central locking portion 61 a of the lever 61 and the locking portion 66 of the base portion 18.
With the urging force of the tension spring 63, the housing recess 65 can be held in the projection 62.

  By forming the inclined surface 64a on the C-shaped locking claw 64, when the base part 18 of the fluorescent lamp 15 is fitted into the socket 16 from below as in the first embodiment, the protrusion 62 of the base part 18 is formed. By contacting (contacting) the inclined surface 64 a of the lever 61, the lever 61 can be rotated in the direction opposite to the protrusion 62 against the urging force of the tension spring 63.

  And since the accommodating recessed part 65 can be naturally latched by the protrusion 62 with the urging | biasing force of the tension | pulling spring 63 when the protrusion 62 gets over the inclined surface 64a, the nozzle | cap | die part 18 can be attached to the socket 16 easily.

(Fourth embodiment)
A lamp mounting structure 70 according to the fourth embodiment will be described.
As shown in FIG. 8A, the lamp mounting structure 70 uses a locking groove 72 instead of the protrusion 22 of the first embodiment, and locks the locking claw 36 of the lever 31 in the locking groove 72. The other structure is the same as that of the lamp mounting structure 12 of the first embodiment.

The locking groove 72 has an upper surface 73 formed on a substantially horizontal surface.
Therefore, the fluorescent lamp 15 can be locked to the socket 16 by locking the locking claw 36 in the locking groove 72.

In the lamp mounting structure 70 shown in FIG. 8A, the example in which the upper surface 73 of the locking groove 72 is formed on a substantially horizontal surface has been described. However, as shown in FIG. It is also possible to form it on an inclined surface that is inclined downward.
By forming the upper surface 73 as an inclined surface, the locking claw 36 can be more reliably locked in the locking groove 72.

In addition, the lighting fixture which concerns on this invention is not limited to embodiment mentioned above, A change, improvement, etc. are possible suitably.
For example, the luminaire 10, the lamp mounting structure 12, 50, 60, 70 shown in the first to third embodiments, the fluorescent lamp 15, the socket 16, the straight fluorescent tube 17, the base part 18, the lamp pin 21, and the protrusion 22, 62, support shaft 27, levers 31, 61, coil spring 33, locking claws 36, 64, locking surface 36a, inclined surfaces 36b, 64a, operation portion 38, tension spring 63, locking groove 72, etc. The configurations are not limited to those illustrated, and can be changed as appropriate.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 12, 50, 60, 70 Lamp mounting structure 15 Fluorescent lamp 16 Socket 17 Straight tube fluorescent tube 17a Both ends (end part)
18 Base part 21 Lamp pin 22, 62 Protrusion 27 Support shaft 31, 61 Lever 33 Coil spring (elastic body)
36, 64 Locking claw 36a Locking surface 36b, 64a Inclined surface 38 Operation part 63 Tension spring (elastic body)
72 Locking groove

Claims (7)

Base portions are provided in the vicinity of both ends of the straight tube fluorescent tube of the fluorescent lamp, lamp pins are erected along the radial direction of the straight tube fluorescent tube, and the lamp pin is connected to the conductive portion of the socket. And a lamp mounting structure in which the base is held in a socket,
The socket extends in a direction orthogonal to the longitudinal direction of the straight tube fluorescent tube attached to a pair of support portions provided at a predetermined interval and a support hole of the pair of support portions . A support shaft, a lever rotatably supported by the support shaft, and a coil spring attached to the support shaft as an elastic body that urges the lever in a locking direction;
The mouthpiece is provided with the lever and lockable projections,
The lever is
Lever body,
A pair of locking claws extending from the lower side of the lever body toward the base part;
A pair of mounting portions provided on both upper ends of the lever body;
Is extended toward the pair of mounting portions on the end portion of the straight pipe fluorescent tube, a pair of operating portions of rotating in a direction to release the engagement between the projection in a state in which the locking surface is engaged with the projection and, with a,
The locking claw is provided with a locking surface that locks with the protrusion, and when the base portion is fitted into the socket, the protrusion comes into contact with the biasing force of the elastic body. An inclined surface for rotating the lever in a direction opposite to the protrusion,
Each of the pair of attachment holes is formed in the pair of attachment portions, and the pair of attachment holes are engaged with the support shaft, so that the lever is rotatably engaged with the support shaft,
The lamp mounting structure characterized in that the fluorescent lamp is held in the socket by the locking surface of the locking claw being locked to the protrusion.   2. The lamp mounting structure according to claim 1, further comprising engagement means for preventing the locking surface from being inadvertently detached from the protrusion in a state where the locking surface is locked to the protrusion.   3. The method according to claim 1, wherein the lever is urged by the elastic body toward the end of the fluorescent lamp in a state where the locking surface is locked to the protrusion. The lamp mounting structure. In any one of Claims 1-3, a pair of said operation part is provided substantially parallel with respect to the said straight tube | pipe fluorescent tube,
A lamp mounting structure, wherein the lever is released from locking with the projection against the urging force of the elastic body by pressing the pair of operation portions toward the straight fluorescent tube. The lamp mounting structure according to any one of claims 1 to 4, wherein the pair of operation portions is provided directly on the lever. The lamp mounting structure according to any one of claims 1 to 4, wherein the pair of operation portions are provided indirectly on the lever.   The lighting fixture provided with the lamp mounting structure of any one of Claims 1-6.

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