JP2009176501A - Lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture capable of stably fixing a fluorescent lamp by a simple structure, and achieved in cost reduction. <P>SOLUTION: An engagement part 18 is arranged at a face 16 opposed to the fluorescent lamp 20 in a fixture body 12 engaged with a bridge 24 of the fluorescent lamp 20, so that, when the fluorescent lamp 20 having an arc tube 22 with a discharge path circled in a double-coil state along nearly the same plane with the length-direction center as a center is attached to a lamp socket 17, the fluorescent lamp 20 can be prevented from moving in a vertical direction without providing a plurality of support springs, and the simplification and cost reduction of the lighting fixture 10 can be achieved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a luminaire having a fluorescent lamp in which a tubular discharge path is swirled in a double spiral along substantially the same plane with a central portion in the longitudinal direction as a center.

Conventionally, a fluorescent lamp in which a discharge path is swirled in a double spiral shape is known (see, for example, Patent Document 1).
As shown in FIGS. 7A and 7B, in the fluorescent lamp 100 described in Patent Document 1, the tubular discharge path swirls in a double spiral shape along substantially the same plane with the longitudinal center portion 101a as the center. The arc tube 101 is provided, and a bridge 102 is provided on the back surface (on the side opposite to the light emitting surface) to connect both end portions 101b and 101b of the arc tube 101 through the central portion 101a. Further, a base 103 is provided at the center of the bridge 102 so as to protrude from the back side, and a lamp pin 104 is provided at the center of the base 103.
JP 2007-273330 A (FIG. 1)

  However, in the fluorescent lamp 100 described in Patent Document 1 described above, since the base 103 is attached by fitting it into a socket of a lighting fixture, the arc tube 101 cannot be sufficiently fixed. In addition, there is a problem that the structure of the base 103 is complicated because the base 103 is provided with a latching claw portion and engaged with a hook provided in the lighting fixture to prevent the base 103 from falling off. .

Further, as in the lighting fixture 110 shown in FIG. 8, a fluorescent lamp 114 in which caps 112, 112 are provided at both ends of the arc tube 111 swung in a double spiral shape and a bridge 113 is provided between the caps 112, 112. Is used, a lamp support spring 116 is provided on the instrument main body 115 in order to stably fix the fluorescent lamp 114.
For this reason, there was a problem that the number of parts increased and the cost of the lighting fixture 110 was increased.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting fixture that can stably fix a fluorescent lamp with a simple configuration and can reduce the cost.

  The luminaire of the present invention includes a light emitting tube in which a tubular discharge path is swirled in a double spiral shape along a substantially same plane with a central portion in the longitudinal direction as a center, and a pair of electrodes provided at both ends of the light emitting tube. A fluorescent lamp comprising a base, a lamp pin provided in the base and extending along the axial direction of the arc tube, and a bridge for connecting and supporting the pair of bases; and the lamp pin electrically connected to the lamp pin A lighting fixture comprising a lamp socket for supplying electric power to the fluorescent lamp, and a fixture main body for holding the fluorescent lamp via the lamp socket, the surface of the fixture main body facing the fluorescent lamp, It has a configuration provided with an engaging portion that engages with a bridge and prevents the fluorescent lamp from moving in the vertical direction.

  With this configuration, since the engagement portion that engages with the bridge of the fluorescent lamp is provided on the surface of the instrument body that faces the fluorescent lamp, the discharge path is a double swirl along substantially the same plane with the central portion in the longitudinal direction as the center. When a fluorescent lamp having an arc tube swung in the shape of a lamp is attached to the lamp socket, it is possible to prevent the fluorescent lamp from moving in the vertical direction without providing a plurality of support springs, thereby simplifying the lighting fixture. In addition, the cost can be reduced.

  Moreover, the lighting fixture of this invention has the structure in which the said engaging part has an elastic member which presses the said bridge | bridging.

  With this configuration, the bridge of the fluorescent lamp is sandwiched from both sides by the restoring force of the elastic member, and the insertion port of the elastic member is made larger than the width of the bridge so that the bridge is pushed into the insertion port of the elastic member. Can be stopped. Thereby, the movement of the fluorescent lamp in the vertical direction can be prevented by one elastic member without providing a plurality of support springs, and the lighting fixture can be simplified and the cost can be reduced.

  Furthermore, the lighting fixture of this invention has the structure in which the said engaging part has a locking member which locks the said bridge from a horizontal direction.

  With this configuration, for example, a locking member whose tip is bent in an L shape is provided from the reflecting plate facing the fluorescent lamp to the fluorescent lamp side, and the fluorescent lamp is pivoted in the horizontal direction to turn the fluorescent lamp at the tip of the locking member. You can try to hook the bridge. Thereby, without providing a support spring, the movement of the fluorescent lamp in the vertical direction can be prevented, and the lighting fixture can be simplified and the cost can be reduced.

  In the present invention, since the engaging portion that engages with the bridge of the fluorescent lamp is provided on the surface of the instrument body that faces the fluorescent lamp, the discharge path is a double swirl along substantially the same plane centering on the central portion in the longitudinal direction. When a fluorescent lamp having an arc tube swung in the shape of a lamp is attached to the lamp socket, it is possible to prevent the fluorescent lamp from moving in the vertical direction without providing a plurality of support springs, thereby simplifying the lighting fixture. And the lighting fixture which has the effect that cost reduction can be aimed at can be provided.

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
FIG. 1 is an exploded perspective view showing a lighting apparatus according to a first embodiment of the present invention, FIG. 2A is a plan view of a flat spiral fluorescent lamp, and FIG. 2B is a view from B direction in FIG. FIG. 3 is a perspective view of the lamp socket, FIG. 4A is a sectional view showing a state in which a flat spiral fluorescent lamp is attached, and FIG. 4B is a sectional view of an elastic member.

  As shown in FIG. 1, a lighting device 10 according to the present invention is used by being fixed to a wall surface 11 such as a ceiling or a wall. For example, a rectangular box-shaped device body 12 and a front opening of the device body 12 are provided. A panel 13 made of a transparent or translucent resin or the like is provided. An electrical component such as a lighting device 14 connected to a commercial AC power supply (not shown) is attached to the bottom plate 12a of the appliance main body 12 near one end, and covers the lighting device 14 and the panel 13. A mounting plate 15 for mounting is provided. The panel 13 is detachably attached by screwing the screw 13a into the screw hole 15a of the attachment plate 15 and tightening.

  Further, a reflector 16 is provided from the center and the other end of the bottom plate 12 to reflect the illumination light of the flat spiral fluorescent lamp 20 as a fluorescent lamp toward the panel 13 and improve the illumination efficiency. A pair of lamp sockets 17 and 17 for mounting the flat spiral fluorescent lamp 20 are attached to the upper surface of the reflection plate 16. These lamp sockets 17 and 17 are connected to the lighting device 14 by power lines (not shown). Then, when the flat spiral fluorescent lamp 20 is mounted on the lamp socket 17 on the upper surface of the reflector 16 that is a surface facing the flat spiral fluorescent lamp 20 in the instrument body 12, the flat spiral fluorescent lamp 20 will be described later. One engaging portion 18 that engages with the bridge 24 to prevent the flat spiral fluorescent lamp 20 from moving in the vertical direction is provided. The engaging portion 18 has an elastic member 18a, and the elastic member 18 is preferably provided so as to hold the vicinity of the center portion of the bridge 24.

  As shown in FIG. 2, the flat spiral fluorescent lamp 20 has an arc tube 22 in which a tubular discharge path is swirled in a double spiral shape along the same plane starting from the longitudinal center portion 22a. The central portion 22a of the arc tube 22 has a larger diameter than the other portions and is the coldest point. Bases 23 and 23 are respectively attached to both ends of the arc tube 22, and both the caps 23 and 23 are provided at point-symmetrical positions with respect to the central portion 22 a of the arc tube 22. Both the caps 23 and 23 are connected by a bridge 24 provided on the back surface opposite to the irradiation direction. Each of the caps 23, 23 is provided with a pair of lamp pins 21 projecting along the axial direction of the arc tube 22 in a direction orthogonal to the plane of the flat spiral fluorescent lamp 20.

  As shown in FIG. 3, the lamp socket 17 has, for example, a cylindrical main body 17a, and the main body 17a is provided with a lamp pin insertion groove 17b for inserting the lamp pin 21. A pair of conductive plates 17c and 17c are provided inside the lamp pin insertion groove 17b to hold and connect the pair of lamp pins 21 and 21. In addition, an opening / closing lid 17d for closing the lamp pin insertion groove 17b is provided along the outer peripheral surface of the main body 17a.

  As shown in FIG. 4, the elastic member 18a constituting the engaging portion 18 has side walls 18c and 18c bent upward from both sides of the bottom surface 18b, and faces the upper end of the side wall 18c. A locking portion 18d is provided so as to protrude toward the side wall 18c. In the state before the elastic member 18a is engaged with the bridge 24, the distance D1 between the upper ends of the opposite side walls 18c, 18c is larger than the width D2 of the bridge 24, and the distance between the locking portions 18d, 18d. D 3 is formed to be smaller than the width D 2 of the bridge 24. The elastic member 18 is attached by fixing the bottom surface 18b to the reflecting plate 16 with screws 18e, and both side walls 18c, 18c are urged toward the side walls 18c facing each other.

  Therefore, when attaching the flat spiral fluorescent lamp 20 to the fixture body 12, the lamp pins 21, 21 provided on the caps 23, 23 at both ends of the flat spiral fluorescent lamp 20 are replaced with the lamp pin insertion grooves 17 a of the lamp socket 17. Position to. Then, the flat spiral fluorescent lamp 20 is inserted into the lamp socket 17 and the bridge 24 is pushed into the elastic member 18 provided on the reflector 16. When the bridge 24 is pushed in from above the elastic member 18, the bridge 24 descends while opening the upper ends of the side walls 18c, 18c, and after descending beyond the locking portion 18d, the bridge 24 is held across the side surface of the bridge 24. At the same time, the locking portion 18d prevents the dropout. Thereafter, the handle 17e of the lamp socket 17 is operated and the open / close lid 17d is closed to fix it.

As described above, according to the luminaire 10 described above, the reflector 16 facing the flat spiral fluorescent lamp 20 in the fixture main body 12 has the elastic member 18 a that engages with the bridge 24 of the flat spiral fluorescent lamp 20. Since the portion 18 is provided, when the flat spiral fluorescent lamp 20 is attached to the lamp socket 17, the flat spiral fluorescent lamp 20 is prevented from moving in the vertical direction without providing a plurality of support springs as in the prior art. Therefore, simplification and cost reduction of the lighting fixture 10 can be achieved.
Further, the elastic member 18a plays a role of positioning the flat spiral fluorescent lamp 20 and prevents incomplete contact between the lamp pin 21 and the lamp socket 17 and exposure of the lamp pin 21.

Next, a second embodiment of the present invention will be described with reference to the drawings.
FIG. 5 is an exploded perspective view showing a lighting apparatus according to a second embodiment of the present invention, FIG. 6A is a cross-sectional view showing a support state of a mounted flat spiral fluorescent lamp, and FIG. It is sectional drawing of a member. In addition, suppose that the same code | symbol is attached | subjected to the site | part common to the lighting fixture concerning 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIGS. 5 and 6, a lighting fixture 10 </ b> B according to the second embodiment of the present invention has a flat spiral fluorescent lamp on a reflector 16 that is a surface facing the flat spiral fluorescent lamp 20 in the fixture main body 12. As the engaging portion 19 that engages with the 20 bridges 24, a locking member 19 a that locks the bridge 24 from the horizontal direction is provided. Note that the locking member 19 a is provided at a position located below the bridge 24 when the flat spiral fluorescent lamp 20 is mounted on the lamp socket 17. Further, it is desirable that a plurality (two in this case) of the locking members 19a are provided at positions substantially symmetrical with respect to the center of the bridge 24.

  As shown in FIG. 6 (B), the locking member 19a has a standing wall 19b that is cut and raised upward by bending the reflecting plate 16, and a horizontal portion 19c that is bent horizontally from the upper end of the standing wall 19b. A convex portion 19d that protrudes downward is provided on the lower surface of the horizontal portion 19c. The bridge 24 is preferably provided with a concave portion 24a (see FIG. 6B) into which the convex portion 19d is fitted.

  Therefore, when the flat spiral fluorescent lamp 20 is attached to the instrument body 12, the flat spiral fluorescent lamp 20 is first pushed down to below the horizontal portion 19c of the locking member 19a. Next, the lamp pin 21 is pivoted in the horizontal direction (clockwise in FIG. 5) so as to be inserted into the lamp pin insertion groove 17b of the lamp socket 17, so that the lamp pin 21 is connected to the lamp socket 17 and is bridged by the locking member 19a. Lock. Thereafter, the handle 17e of the lamp socket 17 is operated and the open / close lid 17d is closed to fix it.

  As described above, according to the lighting fixture 10B described above, the locking member 19a whose tip is bent into an L shape by cutting up is provided on the reflecting plate 16 which is a surface facing the flat spiral fluorescent lamp 20 in the fixture body 12. Since the flat spiral fluorescent lamp 20 is swung in the horizontal direction, the bridge 24 of the flat spiral fluorescent lamp 20 is hooked on the tip of the locking member 19a. The spiral fluorescent lamp 20 can be prevented from moving in the vertical direction, and the lighting fixture 10B can be simplified and the cost can be reduced.

In addition, the lighting fixture of this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in each embodiment mentioned above, although the rectangular box-shaped instrument main body 12 was illustrated, it is not restricted to this, For example, it can apply also to circular box shape etc.

The disassembled perspective view which shows the lighting fixture concerning 1st Embodiment of this invention. (A) is a plan view of a flat spiral fluorescent lamp, (B) is a front view as seen from the B direction in (A). Perspective view of lamp socket (A) is sectional drawing which shows the state which attached the flat spiral fluorescent lamp, (B) is sectional drawing of an elastic member The disassembled perspective view which shows the lighting fixture concerning 2nd Embodiment of this invention. (A) is sectional drawing which shows the support state of the mounted flat spiral fluorescent lamp, (B) is sectional drawing of a locking member. It is an example of the fluorescent lamp used for the conventional lighting fixture, (A) is the perspective view seen from the light emission surface side, (B) is the perspective view seen from the light emission surface side. Side view showing another example of a fluorescent lamp used in a conventional lighting fixture

Explanation of symbols

10, 10B Lighting fixture 12 Appliance body 16 Reflecting plate (opposite surface)
17 Lamp socket 18 Engagement part 18a Elastic member 19 Engagement part 19a Locking member 20 Flat spiral fluorescent lamp (fluorescent lamp)
21 lamp pin 22 arc tube 23 base 24 bridge

Claims (3)

An arc tube in which a tubular discharge path is swirled in a double spiral along substantially the same plane with the central portion in the longitudinal direction as a center, a pair of caps provided at both ends of the arc tube, and a cap provided on the cap A fluorescent lamp having a lamp pin extending along the axial direction of the arc tube and a bridge for connecting and supporting the pair of caps;
A lamp socket that is electrically connected to the lamp pin to supply power to the fluorescent lamp;
A fixture body that holds the fluorescent lamp via the lamp socket, and a lighting fixture comprising:
An illuminating device characterized in that an engaging portion that engages with the bridge and prevents the fluorescent lamp from moving in a vertical direction is provided on a surface of the device body that faces the fluorescent lamp.   2. The lighting apparatus according to claim 1, wherein the engaging portion includes an elastic member that presses the bridge.   The lighting apparatus according to claim 1, wherein the engaging portion includes a locking member that locks the bridge from a horizontal direction.

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