JP5094437B2 - lighting equipment - Google Patents

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 on the back surface (opposite side to the light emitting surface), a bridge 102 is provided to connect both end portions 101b and 101b of the arc tube 101 through the central portion 101a. 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 lighting fixture using the fluorescent lamp 100 described in Patent Document 1 described above, the bridge 102 that connects both ends 101b and 101b of the arc tube 101 of the fluorescent lamp 100 is provided. There was a problem that became high.

  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, the reflector 115 facing the back surface of the fluorescent lamp 114 is cut and raised to provide 115a to restrict the movement of the fluorescent lamp 114 in the horizontal direction. For this reason, it is necessary to determine the height of the lighting fixture 110 in consideration of the height of the bridge 113, and there is a problem that the height of the lighting fixture 110 is 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 uses a flat spiral fluorescent lamp and can be reduced in thickness.

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 pair of lamp pins provided on each of the base and the pair of bases, each lamp pin being disposed in a direction perpendicular to the substantially same plane and projecting along the axial direction of the arc tube a pair of lamp pins that provided a fluorescent lamp having a bridge connecting support between the pair of the base, the pair of lamp pins are inserted, it is open in a direction perpendicular to the substantially same plane lamp pins has an insertion groove, the lamp pins insertion groove pair of conductive plates for holding each of the pair of lamp pins are provided on the is connected to the lamp pins electrically through each of said pair of conductive plates A lighting fixture comprising: a lamp socket for supplying power to the light 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, A recess for accommodating a bridge of the fluorescent lamp is provided , the bridge can be inserted into the recess while being inserted by pushing the pair of lamp pins into the lamp pin insertion groove, and on the inner side of the recess, to the inside of the recess. A plurality of protruding protrusions are provided, and the interval between the ends of the plurality of protrusions or the interval between the ends of the protrusions and the side surfaces of the recesses is made smaller than the width of the bridge, whereby the recesses are pushed in. The side surface of the bridge is pressed and held .

With this configuration, since the concave portion for accommodating the fluorescent lamp bridge is provided on the surface of the fixture body facing the fluorescent lamp, the discharge path turns in a double spiral shape along the substantially same plane with the central portion in the longitudinal direction as the center. The fluorescent lamp having the arc tube can accommodate a bridge for connecting the caps at the end of the arc tube, and the lighting fixture can be made thin.
Moreover, the lighting fixture of this invention has the structure where the said recessed part presses and holds the side surface of the said bridge | bridging.
With this configuration, since the bridge is housed in the recess and pressed and held, the movement of the fluorescent lamp can be prevented without providing a separate part for holding the fluorescent lamp, thereby reducing the number of parts and reducing the cost. be able to.

  In the present invention, since the concave portion for accommodating the bridge of the fluorescent lamp is provided on the surface of the fixture body facing the fluorescent lamp, the discharge path is swirled in a double spiral shape along substantially the same plane with the central portion in the longitudinal direction as the center. It is possible to provide a luminaire that can accommodate a bridge that connects the caps at the end of the luminescent tube of the fluorescent lamp having the luminescent tube so that the luminaire can be thinned. Is.

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 a lamp socket, and FIG. 4 is a side view showing a state in which a bridge of a flat spiral fluorescent lamp is fitted in a recess.

  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). The reflector 16 is provided with a recess 18 for accommodating the bridge 24 (see FIGS. 2A and 2B) of the flat spiral fluorescent lamp 20.

  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.

  Therefore, when the flat spiral fluorescent lamp 20 is attached to the instrument body 12, the bridge 24 provided on the back surface of the flat spiral fluorescent lamp 20 is positioned in the recess 18 provided in the reflecting plate 16, and The lamp pins 21 and 21 at both ends of the flat spiral fluorescent lamp 20 are positioned in the lamp pin insertion groove 17a. Then, while inserting the bridge 24 into the recess 18 (see FIG. 4), the lamp pins 21 and 21 are inserted into the lamp pin insertion grooves 17a, and the lamp pins 21 and 21 are pushed in and held by the conductive plates 17c and 17c, and then a support spring (illustrated). The outer side of the base 23 is picked and fixed, and the handle 17e is operated to fix the open / close lid 17d.

  As a result, the flat spiral fluorescent lamp 20 is attached to the instrument main body 12 to prevent falling off and supply power. If the bridge 24 of the flat spiral fluorescent lamp 20 is not accommodated in the concave portion 18 of the reflecting plate 16, the lamp pin 21 hits the movable portion of the lamp socket 17 and the open / close lid 17d does not close. Therefore, the lamp pin 21 for the conductive plate 17c is not closed. Incomplete contact can be prevented.

  As described above, according to the lighting fixture 10 described above, since the concave portion 18 that accommodates the bridge 24 of the flat spiral fluorescent lamp 20 is provided in the reflector 16 of the fixture main body 12, the flat spiral fluorescent lamp 20 is provided in the fixture main body 12. When attached, the bridge 24 can be accommodated, and the lighting fixture 10 can be thinned.

Next, a second embodiment of the present invention will be described.
FIG. 5 is a perspective view of the lighting apparatus according to the second embodiment, and FIG. 6 is a side view showing a state in which the bridge of the flat spiral fluorescent lamp is fitted in the recess. 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, in the lighting fixture 10 </ b> B according to the second embodiment, the recess 18 is configured to press and hold the side surface of the bridge 24 of the flat spiral fluorescent lamp 20. For this reason, for example, a plurality of convex portions 18 a projecting inward of the concave portion 18 are provided on the inner surface of the concave portion 18. Although the convex part 18a can be provided facing the opposing side surface of the concave part 18, it can also be provided in a shifted manner or only on one side surface. Thereby, the space | interval between the front-end | tips of the convex part 18a or the space | interval of the front-end | tip of the convex part 18a and the side surface of the recessed part 18 is made smaller than the width | variety of the bridge 24, and the side surface of the bridge | bridging 24 is pressed and hold | maintained.

  As described above, according to the luminaire 10B according to the second embodiment described above, the bridge 24 is accommodated in the recess 18 and is pressed and held by the projection 18a. Therefore, another component (for example, holding the flat spiral fluorescent lamp 20) Without providing the above-described support spring), the horizontal and vertical movements of the flat spiral fluorescent lamp 20 can be prevented, the number of parts can be reduced, 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 seen from the B direction in FIG. 2 (A), Perspective view of lamp socket Side view showing a state in which a bridge of a flat spiral fluorescent lamp is fitted in a recess The perspective view of the lighting fixture concerning 2nd Embodiment Side view showing a state in which a bridge of a flat spiral fluorescent lamp is fitted in a recess 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

DESCRIPTION OF SYMBOLS 10 Lighting fixture 12 Appliance main body 17 Lamp socket 18 Recess 20 Flat spiral fluorescent lamp (fluorescent lamp)
21 lamp pin 22 arc tube 22a central part 23 base 24 bridge

Claims (1)

An arc tube in which a tubular discharge path is swirled in a double spiral along substantially the same plane centering on the longitudinal center, a pair of caps provided at both ends of the arc tube, and the pair of caps a pair of lamp pins provided in each of the lamp pins, along with being arranged in a direction perpendicular to the substantially same plane, a pair of lamps that are provided projecting in the axial direction of the arc tube A fluorescent lamp comprising a pin and a bridge for connecting and supporting the pair of caps;
A lamp pin insertion groove that is open in a direction perpendicular to the substantially same plane into which the pair of lamp pins are inserted, and the lamp pin insertion groove is provided with a pair of conductive plates for holding each of the pair of lamp pins; A lamp socket that is electrically connected to the lamp pin through each of the pair of conductive plates and supplies power to the fluorescent lamp;
A fixture body that holds the fluorescent lamp via the lamp socket, and a lighting fixture comprising:
Provided on the surface of the appliance body facing the fluorescent lamp is a recess for accommodating the bridge of the fluorescent lamp, allowing the bridge to be inserted into the recess while inserting the pair of lamp pins into the lamp pin insertion groove,
In addition, a plurality of convex portions projecting inward of the concave portion are provided on the inner side surface of the concave portion, and the interval between the tips of the plurality of convex portions or the interval between the tips of the convex portions and the side surfaces of the concave portion The lighting apparatus is characterized in that it is smaller than the width, whereby the concave portion presses and holds the side surface of the pushed-in bridge .

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