JP2011228240A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of efficiently preventing turning movements of a spiral-shaped fluorescent lamp without increasing the number of components.SOLUTION: Uniform illumination light with surface light-emission can be attained since the spiral-shaped fluorescent lamp 40 having a light-emitting tube 41 wherein a tube-shaped discharge passage is spirally turned along the same plane starting from a central section 411 in a longitudinal direction as a starting point is used. Further, a portion as a starting point of rotation of the spiral-shaped fluorescent lamp 40 can be regulated since a rotation regulating piece 352 for regulating rotation of the spiral-shaped fluorescent lamp 40 is integrated with a holding spring 351 for holding a base 42 in a support spring 35. Thus, the rotation of the spiral-shaped fluorescent lamp 40 can be efficiently regulated, and the number of components used for the lighting fixture can be reduced.

Description

  The present invention relates to a lighting fixture that is attached to a ceiling surface and uses a spiral fluorescent lamp.

2. Description of the Related Art Conventionally, a lighting fixture that is attached to a ceiling surface and uses a spiral fluorescent lamp is known (see, for example, Patent Document 1).
As shown in FIG. 18, the lighting fixture 100 is made of metal and has a substantially flat plate-like fixture body 101, a lamp socket 102 fixed at a predetermined position of the fixture body 101, and the fixture body 101 through the lamp socket 102. The spiral fluorescent lamp 103 is attached to the. The spiral fluorescent lamp 103 has arc tubes 104 that swirl in a substantially plane with the tube central portion 107 as the center, and two parallel lamp pins 105 on the tip side at both ends of the arc tube 104. And the two caps 106 are integrally connected by a bridge portion 108.

  A lamp socket 102 is fixed to one surface of the instrument main body 101, and the spiral fluorescent lamp 103 is disposed at a predetermined position on the instrument main body 101, and is opposite to the lamp socket 102 with respect to the bridge portion 108. A restriction piece 109 that abuts against the bridge portion 108 and restricts the movement of the spiral fluorescent lamp 103 is provided at this portion.

Japanese Patent Laid-Open No. 2008-243626 (FIG. 1)

  However, in the conventional lighting device 100 described in Patent Document 1, the swivel movement of the spiral fluorescent lamp 103 is restricted by restricting the swivel movement of the bridge portion 108 in the vicinity of the central portion 107 of the spiral fluorescent lamp 103. Since the piece 109 is provided as a separate part, the number of parts increases. In addition, there is a problem that the efficiency is not good because the turning is restricted near the center.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus that can efficiently prevent the swirling movement of the spiral fluorescent lamp without increasing the number of parts.

  The luminaire of the present invention includes an arc tube in which a tubular discharge path is spirally swung along the same plane starting from the longitudinal center, a pair of caps provided at both ends of the arc tube, and a cap And a lamp pin extending along a plane orthogonal to the pivot axis of the arc tube, and a spiral fluorescent lamp having a lamp body, and an instrument body on which the spiral fluorescent lamp is mounted, and holding the base A support spring is provided in which a spring portion and a rotation restricting piece for restricting the rotation of the spiral fluorescent lamp around the turning axis are integrated in the vicinity of the base.

  In the lighting fixture of the present invention, the rotation restricting piece elastically holds the arc tube of the spiral fluorescent lamp.

  In the lighting fixture of the present invention, the rotation restricting piece contacts the arc tube after the holding spring portion contacts the base when the spiral fluorescent lamp is mounted.

  In the lighting fixture of the present invention, the rotation restricting piece is provided on the side opposite to the holding spring portion with respect to the axis of the arc tube.

  Furthermore, the lighting fixture of this invention can contact | abut a rotation control piece to the side surface on the opposite side to the lamp pin of the bridge | bridging which connects a pair of nozzle | cap | die of a spiral fluorescent lamp.

  The present invention regulates the part that becomes the starting point of rotation of the spiral fluorescent lamp, and can provide a lighting apparatus that can efficiently regulate the rotation of the spiral fluorescent lamp and reduce the number of components.

The disassembled perspective view which shows the whole structure of the lighting fixture of 1st Embodiment which concerns on this invention. The disassembled perspective view which shows the detailed structure of the lighting fixture of 1st Embodiment which concerns on this invention. The perspective view which looked at the main part of an instrument and the spiral fluorescent lamp from the slanting lower part Sectional drawing which shows the structure of the attachment part of an instrument main body and a ceiling surface (A) is a perspective view of an instrument main body and a spiral fluorescent lamp, and (B) is an enlarged perspective view of a state in which a shielding plate is opened. An enlarged perspective view showing a state in which the power connector is attached to the adapter. The perspective view which shows the attachment structure of a lamp socket (A) is the bottom view which looked at the lamp socket from the lower part, (B) is sectional drawing of the BB position in (A). Side view of the instrument body with a spiral fluorescent lamp indicating the direction of the remote control receiver (A) is the perspective view which looked at the instrument main body which mounted | wore the spiral-shaped fluorescent lamp in the support spring from diagonally upward, (B) is an enlarged view of B part in (A). (A)-(C) is process drawing which shows the state which attaches a spiral fluorescent lamp to a support spring. (A) is the perspective view which looked at the instrument main body which attached the spiral fluorescent lamp to another support spring from diagonally upward, (B) is an enlarged view of B part in (A). (A) is a side view of the instrument body equipped with a spiral fluorescent lamp indicating the direction of the auxiliary light source, and (B) is a bottom view as seen from the B direction in (A). Exploded perspective view of auxiliary light source and operation switch (A) is the top view which looked at the state which removed the shade of the lighting fixture of 2nd Embodiment which concerns on this invention from the downward direction, (B) is an enlarged view of B part in (A). (A) is the perspective view which looked at the state which removed the shade of the lighting fixture of 2nd Embodiment which concerns on this invention from the upper direction, (B) is an enlarged view of B part in (A). (A)-(C) is process drawing which shows the state which attaches a spiral fluorescent lamp to a support spring. (A) is a top view of the lighting fixture using the conventional spiral fluorescent lamp, (B) is a side view of a lighting fixture

(First embodiment)
Hereinafter, the lighting fixture of 1st Embodiment concerning this invention is demonstrated using drawing.
As shown in FIG. 1, the lighting fixture 10 of 1st Embodiment which concerns on this invention can be attached and used for the ceiling surface 11 which is a to-be-attached part. That is, the lighting fixture 10 is mounted on the fixture main body 20 and the fixture main body 20 attached to the ceiling ceiling 11 via the adapter 13, for example, as a wiring fixture connected to a commercial power source (not shown). A spiral fluorescent lamp 40 that is a light source, and a translucent resin shade 50 that covers the spiral fluorescent lamp 40 and is detachably attached to the instrument body 20.
In the description of the lighting fixture 10 below, “upper (surface) side” indicates the ceiling surface 11 side, and “lower (surface) side” indicates the irradiation direction.

  The adapter 13 has a substantially cylindrical shape, and is mechanically connected to a hooking blade receiving portion (not shown) through a plug blade insertion hole (not shown) of the hooking ceiling 12 on the upper surface side. A hooking blade portion 131 that is hooked and held by the hook is protruded (see FIG. 4). Moreover, in order to supply electric power to the lighting fixture 10, the lower surface side of the adapter 13 has a connector insertion hole 133 to which a power connector 29 described later can be connected. The adapter 13 has a locking portion (not shown) on the outer peripheral surface that can be locked by simply fitting and pushing up a holder 23 described later.

  As shown in FIG. 3, the spiral fluorescent lamp 40 includes an arc tube 41 in which a tubular discharge path is swirled in a double spiral shape along the same plane with a longitudinal center 411 as a starting point, that is, a swivel axis CL. The central portion 411 of the arc tube 41 has a larger diameter than the other portions and is the coldest point. Bases 42 and 42 are attached to both ends of the arc tube 41, and both the caps 42 are provided at point-symmetrical positions with respect to the central portion 411 of the arc tube 41. Both caps 42 are connected by a bridge 43 provided on the back surface opposite to the irradiation direction (upper side in FIG. 3). Further, each base 42 is provided with a pair of lamp pins 44, 44 extending in a direction extending along a plane orthogonal to the turning axis CL of the arc tube 41, with one end projecting along the axial direction of the arc tube 41. The other end is connected to a filament (not shown) provided at the inner end of the arc tube 41.

As shown in FIG. 2, the instrument body 20 has a metal disk-shaped base plate 21, and the upper surface of the base plate 21 abuts on the ceiling surface 11 when attached to the ceiling surface 11. In order to absorb vibration and maintain a constant interval, for example, three or more elastic members such as sponge 212 are attached at equal intervals (see FIGS. 9 and 10A).
A recess 22 that is recessed downward is provided in the center of the base plate 21, and an opening 221 is provided in the center of the recess 22. A holder 23 for attaching the instrument main body 20 to the ceiling surface 11 is attached to the recess 22 by attaching to the adapter 13. The holder 23 has a cylindrical adapter mounting portion 231 at the center, and a locking groove (not shown) is formed on the inner surface of the mounting portion 231. Further, the adapter attachment portion 231 has an attachment plate 232 for attachment to the base plate 21, and the adapter attachment portion 231 extends from the opening 221 to the lower side of the base plate 21 with the holder 23 attached to the base plate 21. Protruding.

  Therefore, by inserting the adapter 13 attached to the hook ceiling 12 into the adapter mounting portion 231 and pushing up the holder 23, the locking groove of the adapter mounting portion 231 is locked to the locking portion of the adapter 13. Thus, the instrument body 20 is attached to the ceiling surface 11 via the adapter 13.

On the outer peripheral edge of the lower surface of the base plate 21, a plurality (three in FIG. 3) of shade receivers 211 are provided at predetermined intervals in the circumferential direction (see FIG. 3). ). On the other hand, on the inner periphery of the shade 50, a plurality of locking portions (not shown) that are locked to the shade receiver 211 are provided at predetermined intervals corresponding to the shade receiver 211.
Therefore, when attaching the shade 50 to the instrument body 20, the latch 50 is attached to the shade receiver 211 of the instrument body 20 by rotating the shade 50. Further, when removing the shade 50, the shade 50 is rotated in the opposite direction, and the locking portion is removed from the shade receiver 211.

  An insulating plate 24 is provided on the lower surface of the base plate 21, and electrical components such as a lighting device 25, a remote control receiver 26, and a control board 27 are attached to the base plate 21 via the insulating plate 24. On the lower surface of the base plate 21, a body cover 28 that includes electrical components such as the insulating plate 24 and the lighting device 25 is attached. The lower surface of the main body cover 28 is painted white and also functions as a reflector. In addition, the instrument main body 20 means the thing including the base plate 21 to the main body cover 28 (refer FIG. 2).

As shown in FIGS. 3 and 5, an opening 281 for attaching and detaching the power connector 29 is provided in the center of the main body cover 28, that is, directly above the central portion 411 of the spiral fluorescent lamp 40 in the instrument main body 20. The opening 281 is provided with a shielding plate 31. The shielding plate 31 has, for example, a substantially oval shape, and one long side 311 of the opposed long sides is attached to the main body cover 28 by a rotating shaft 312 so as to be opened and closed. On the other long side 313 side, a lock portion 315 having a lock hole 314 is provided so as to protrude outward. On the other hand, a latch 32 is rotatably provided on the opposite side of the rotation shaft 312 with the opening 281 in the main body cover 28.
Therefore, after closing the shielding plate 31 and passing the latch 32 through the lock hole 314, the shielding plate 31 is locked in a closed state by rotating the latch 32.

  As shown in FIG. 3, a holding portion 316 that holds a bridge 43 that connects the pair of caps 42 of the spiral fluorescent lamp 40 is provided on the lower surface of the shielding plate 31. The holding portion 316 is a linear member having a U-shaped cross section that is open at the bottom, and has an opening large enough to fit the bridge 43 of the spiral fluorescent lamp 40. Further, the spiral fluorescent lamp 40 is provided corresponding to the position and direction of the bridge 43 when the instrument body 20 is mounted.

  As shown in FIGS. 4 to 6, the shielding plate 31 is located below the adapter 13, and the power connector 29 can be attached to and detached from the adapter 13 by opening the shielding plate 31. The power connector 29 includes a rectangular box-shaped main body 291, a connection terminal portion 292 orthogonal to the main body 291, and a lead wire 293 having one end connected to the connection terminal portion 292. The connection terminal portion 292 is inserted into the connector insertion hole 133 of the adapter 13 and contacts the power supply terminal 132 that is electrically connected to the hooking blade portion 131. The lead wire 293 is drawn out from the main body 291 of the power connector 29 in parallel with the ceiling surface 11, is wired between the base plate 21 and the main body cover 28, and the other end is connected to the lighting device 25.

  Therefore, by connecting the power connector 29 to the adapter 13 attached to the hooking ceiling 12, electric power is supplied to the lighting device 25 via the hooking blade portion 131, the power terminal 132, the connection terminal portion 292, and the lead wire 293. Supplied. The power connector 29 is provided with a lock portion 294 so that the power connector 29 can be locked so as not to drop off from the adapter 13 with the connection terminal portion 292 inserted into the connector insertion hole 133.

  As shown in FIG. 3, a pair of lamp socket bases 34, 34 are attached to the lower surface of the main body cover 28, which is the lower surface of the instrument main body 20, at positions symmetrical to the center of the instrument main body 20. Each lamp socket base 34 is provided with a lamp socket 33 for attaching the spiral fluorescent lamp 40 to the instrument body 20 by connecting a lamp pin 44. Accordingly, the pair of lamp sockets 33 and 33 are provided at positions symmetrical with respect to the center of the instrument body 20.

  As shown in FIGS. 7 and 8, the lamp socket 33 includes a socket body 331 to which the lamp pin 44 is mounted and a base 332 for lifting the socket body 331 from the body cover 28 by a predetermined height. An insertion port 333 into which the lamp pin 44 is inserted is provided at the lower top portion of the socket main body 331, and a lid 334 that prevents the lamp pin 44 of the spiral fluorescent lamp 40 mounted from being detached is provided in an openable and closable manner.

  A flat screwing portion 335 is provided at the upper end of the base portion 332, and a screw hole 336 is provided in the screwing portion 335. Further, a hooking claw 337 is provided on the upper end of the base 332 so as to protrude upward and toward the spiral fluorescent lamp 40 side. The hooking claw 337 is provided from the front surface 331A of the socket body 331. It does not protrude toward the spiral fluorescent lamp 40 (see the two-dot chain line in FIG. 8B). That is, the screwing portion 335 and the hooking claw 337 are provided in the projection plane of the lamp socket 33 (indicated by a dotted line in FIG. 7). Furthermore, the screwing portion 335 and the hooking claw 337 are provided at diagonal positions within the projection surface of the lamp socket 33 (see FIG. 8A).

On the other hand, the lamp socket base 34 on the side of the fixture main body to which the lamp socket 33 is attached has a rectangular locking hole 341 that is a locking portion for hooking the hooking claw 337 and a screw fixing for screwing the screw fixing portion 335. A screw hole 342 as a position is provided. Here, one locking hole 341 and one screw hole 342 form a set, and a plurality of sets (here, two sets) are provided.
Therefore, when attaching the lamp socket 33 to the fixture body 20, first, the lamp socket 33 is slanted and the hooking claw 337 is inserted into the locking hole 341 of the lamp socket base 34 to be hooked. Straighten and thread the screw 338 through the screw hole 336 and fasten to the screw hole 342.

  As shown in FIGS. 9 and 10, a remote control receiver 26 is attached to the outer surface 343 of the lamp socket base 34, and the remote control receiver 26 is covered with a receiver cover 261. The outer surface 343 of the lamp socket base 34 is inclined outward and downward of the fixture body 20, and the remote control receiver 26 is attached downward and outward (see arrow A in FIG. 9) by being attached to the outer surface 343. It is done. The remote control receiver 26 is arranged closer to the ceiling surface 11 than the spiral fluorescent lamp 40 so as not to block light from the spiral fluorescent lamp 40 (see arrow B in FIG. 9).

  As shown in FIGS. 10 and 11, a pair of support springs 35 that hold a pair of caps 42 of the spiral fluorescent lamp 40 are provided in the vicinity of the spiral fluorescent lamp 40 side of the lamp socket 33. The support spring 35 is attached to the main body cover 28, a holding spring portion 351 that holds the base 42, a rotation regulating piece 352 that regulates the rotation of the spiral fluorescent lamp 40 around the turning axis CL in the vicinity of the base 42. It has the base part 353 integrally.

  The holding spring portion 351 is bent in an arc shape corresponding to the outer peripheral surface of the base 42, and the lower end portion is bent outward to form an introduction portion 351A. The holding spring portion 351 is urged inward by the spring force, and elastically holds the base 42. The rotation restricting piece 352 is bent in an arc shape corresponding to the outer peripheral surface of the arc tube 41, and the lower end portion is bent outward to form an introduction portion 352A. The rotation restricting piece 352 is biased inward by the spring force, and elastically holds the arc tube 41.

The introduction portion 351A of the holding spring portion 351 is positioned below the introduction portion 352A of the rotation restricting piece 352.
Therefore, when the spiral fluorescent lamp 40 is mounted on the instrument body 20, as shown in FIG. 11A, the lamp pin 44 of the spiral fluorescent lamp 40 is inserted into the insertion port 333 of the lamp socket 33 (see FIG. 7). The spiral fluorescent lamp 40 is brought close to the instrument body 20 in accordance with the position. As shown in FIG. 11B, first, the introduction portion 351A of the holding spring portion 351 contacts the base 42, and the holding spring portion 351 is expanded outward. Further, when the spiral fluorescent lamp 40 is moved to the instrument body 20 side, the introduction portion 352A of the rotation restricting piece 352 contacts the arc tube 41, and the rotation restricting piece 352 is expanded outward. 11C, the holding spring portion 351 holds the base 42, and the rotation restricting piece 352 holds the arc tube 41.

  As the support spring 35B, as shown in FIGS. 12A and 12B, a rotation restricting piece 354 that contacts the bridge 43 of the spiral fluorescent lamp 40 and restricts the rotation of the spiral fluorescent lamp 40 is provided. You can also. The holding spring portion 351 is the same as that of the support spring 35 described above.

As shown in FIG. 13, in the extension direction of the lamp pin 44 in the instrument body 20 and at least one location where the arc tube 41 is not located, that is, on the side opposite to the base 42 of the spiral fluorescent lamp 40 with respect to the lamp socket 33. An auxiliary light source unit 36 is provided. As illustrated in FIG. 14, the auxiliary light source unit 36 includes an auxiliary light source 361 such as an LED, a substrate 362 on which the auxiliary light source 361 is mounted, and an auxiliary light source cover 363 that covers the substrate 362. The substrate 362 has a rectangular plate shape, and the auxiliary light source cover 363 has a rectangular box shape with an open top. At a position corresponding to the auxiliary light source 361 on the lower surface 364 of the auxiliary light source cover 363, for example, a cylindrical light shielding member 366 having a light emitting portion 365 at the tip so that light from the auxiliary light source 361 does not enter the spiral fluorescent lamp 40. The auxiliary light source 361 is inserted into the light shielding member 366.
The light shielding member is not limited to the cylindrical member described above, and may be partitioned by a wall member.

  As shown in FIGS. 13 and 14, the lamp pin 44 is extended in the instrument main body 20 and at least one portion where the arc tube 41 is not located, that is, the lamp socket 33 is opposite to the base 42 of the spiral fluorescent lamp 40. On the side, an operation switch unit 37 is provided. Here, since the operation switch part 37 can be provided at the same position as the position where the auxiliary light source part 36 is provided, the case where the operation switch part 37 is provided integrally with the auxiliary light source part 36 is shown. Further, the operation switch unit 37 is provided in the vicinity of the lamp socket 33, and the remote control receiver 26 is provided in the lamp socket base 34 on which the lamp socket 33 is provided. It will be arranged in the vicinity of the container 26.

  The operation switch unit 37 is for lighting the spiral fluorescent lamp 40, and includes an operation switch substrate 371 and an operation substrate cover 372 that covers the operation switch substrate 371. A plurality of switch knobs 373 are mounted on the operation switch board 371 and are arranged side by side on the outer peripheral side (the side far from the spiral fluorescent lamp 40) of the operation switch board 371. The tip of the switch knob 373 is exposed downward from a notch 374 provided in the operation board cover 372. That is, the tip of the switch knob 373 protrudes downward from the notch 374, or can be seen inside the notch 374 although it does not protrude.

Next, the operation of attaching the lighting fixture 10 to the ceiling surface 11 will be described.
First, the adapter 13 is attached to the hook ceiling 12 attached to the ceiling surface 11. Next, the holder 23 at the center of the instrument body 20 to which the spiral fluorescent lamp 40 is not attached is fitted on the adapter 13. At this time, the shielding plate 31 is opened and the adapter 13 is mounted while looking inside. Next, the power connector 29 is inserted into the connector insertion hole 133 of the adapter 13 to connect the lighting device 25 to the power source. When the connection is completed, the shielding plate 31 is closed and the latch 32 is turned to fix the shielding plate 31.

Next, the lamp pin 44 of the spiral fluorescent lamp 40 is aligned with the position below the insertion port 333 of the lamp socket 33, the spiral fluorescent lamp 40 is pushed up, and the lamp pin 44 is inserted into the lamp socket 33. At this time, first, the introduction portion 351A of the holding spring portion 351 contacts the base 42, and the holding spring portion 351 is expanded outward. Further, when the spiral fluorescent lamp 40 is moved to the instrument body 20 side, the introduction portion 352A of the rotation restricting piece 352 contacts the arc tube 41, and the rotation restricting piece 352 is expanded outward. The holding spring portion 351 holds the base 42 and the rotation restricting piece 352 holds the arc tube 41. Then, after the electrical connection, the lid 334 is closed.
Finally, the shade 50 is rotated according to the instrument body 20, and a locking portion (not shown) provided on the shade 50 is locked and attached to the shade receiver 211 of the instrument body 20.

  As mentioned above, according to the lighting fixture 10 of 1st Embodiment which concerns on this invention demonstrated, the spiral discharge path has the arc tube 41 by which the tubular discharge path was spirally swung along the same plane from the longitudinal center part 411. Since the fluorescent lamp 40 is used, uniform illumination light can be obtained by surface emission. Further, in the support spring 35, since the rotation restricting piece 352 for restricting the rotation of the spiral fluorescent lamp 40 is integrated with the holding spring portion 351 for holding the base 42, the part that becomes the starting point of the rotation of the spiral fluorescent lamp 40 is restricted. As a result, the rotation of the spiral fluorescent lamp 40 can be efficiently controlled and the number of parts can be reduced.

  Further, by giving elasticity to the rotation restricting piece 352, the arc tube 41 of the spiral fluorescent lamp 40 can be supported, and the rotation restricting performance can be improved and the safety can be improved.

  Further, when the spiral fluorescent lamp 40 is mounted, the rotation restricting piece 352 comes into contact with the arc tube 41 after the holding spring portion 351 comes into contact with the base 42, so that the user accidentally fits the base 42 into the rotation restricting piece 352. Therefore, it is possible to prevent erroneous attachment of the spiral fluorescent lamp 40 to the holding spring 35 and improve safety.

  Further, since the hooking plug blade 131 is locked to the hooking ceiling 12 installed on the ceiling surface 11 and the adapter 13 is electrically and mechanically attached, and the instrument body 20 is attached via the adapter 13, the general user Can be easily installed.

  Moreover, although the ultraviolet rays emitted from the spiral fluorescent lamp 40 are concentrated in the center as compared with other lamps, since the shielding plate 31 is provided in the central part of the instrument body between the spiral fluorescent lamp 40 and the adapter 13, It is possible to prevent product defects due to ultraviolet deterioration of components such as the adapter 13 and the power connector 29.

  In addition, for the bridge 43 that connects the pair of caps 42 of the spiral fluorescent lamp 40, conventionally, a guide for preventing rotation has been provided as a separate part, but the holding portion 316 that holds the bridge 43 on the shielding plate 31 is provided. Since it is provided, the number of parts can be reduced.

  Further, since the shielding plate 31 does not come off, it is possible to prevent the attachment of the shielding plate 31 and prevent the spiral fluorescent lamp 40 from being attached, and it is possible to reliably prevent ultraviolet degradation of components such as the adapter 13 and the power connector 29. Moreover, the fall of the shielding board 31 can be prevented reliably.

  Further, since the power connector 29 is used in which the lead wire 293 that is engaged with the adapter 13 and pulled out from the hooking ceiling 12 is pulled out in parallel to the ceiling surface 11, the spatial distance between the power connector 29 and the shielding plate 31 can be reduced. 10 can be reduced in thickness.

  In addition, since the auxiliary light source unit 36 is provided in at least one location in the extension direction of the lamp pin 44 in the fixture body 20 and where the arc tube 41 is not located, the space can be effectively used, the size of the fixture body 20 is increased, and the lighting fixture 10 Can be avoided.

  In addition, since the light shielding member 366 having a cylindrical shape or a wall shape is provided to prevent the light from the auxiliary light source unit 36 from being applied to the spiral fluorescent lamp 40, the light from the auxiliary light source unit 36 is shaded uniformly. 50 is irradiated to eliminate unevenness of light, and clean light emission can be performed.

  Further, the vicinity of the lamp socket 33 is a place that is least susceptible to the noise of the spiral fluorescent lamp 40. Since the remote control receiver 26 is arranged on the outer surface of the lamp socket 33, the performance of the remote control can be improved. Furthermore, since the remote control receiver 26 is disposed in the lamp socket 33, the range of shadows generated by the remote control receiver 26 can be reduced.

  Further, since the remote control receiver 26 is inclined to the outside lower side of the fixture body 20 and attached to the outer surface of the lamp socket 33, it is possible to make it less susceptible to noise from the spiral fluorescent lamp 40 and to improve the performance of the remote control. .

  Further, since the remote control receiver 26 is arranged on the ceiling surface 11 side with respect to the spiral fluorescent lamp 40, the light from the spiral fluorescent lamp 40 can be reduced and the shadowed portion can be reduced.

  In addition, since the operation switch board 371 and the operation board cover 372 that covers the operation switch board 371 are provided in at least one place in the extension direction of the lamp pin 44 in the instrument body 20 and where the arc tube 41 is not located, the space can be effectively utilized, The increase in size of 20 and the increase in size of the lighting fixture 10 can be avoided.

  Further, since the operation switch board 371 and the operation board cover 372 are arranged in the vicinity of the remote control receiver 26 so as to collect the light blocking the light of the spiral fluorescent lamp 40, the shadowed portion can be reduced.

  In addition, since the switch knob 373 is disposed so as to be exposed on the lower surface side and the outer peripheral side of the operation board cover 372, it becomes difficult for the hand to touch the spiral fluorescent lamp 40, and the operability is improved. Here, the term “exposed” includes the case where the tip of the switch knob 373 protrudes from the lower surface of the operation board cover 372 and the case where the switch knob 373 is exposed through the notch 374 although it does not protrude.

  The lamp socket 33 has a hooking claw 337 and a screwing portion 335. The hooking claw 337 is hooked and the screwing portion 335 is screwed and attached, so that the lamp socket 33 is attached from the lamp socket 33 side. be able to. For this reason, when attaching the lamp socket 33, it is not necessary to turn over the instrument main body 20, and work efficiency is improved. Further, since the hooking claws 337 and the screwing portions 335 are provided in the projection surface of the lamp socket 33, the lamp socket 33 can be made compact, and the shadow caused by the lamp socket 33 can be reduced.

  Moreover, since the screwing portion is provided at a diagonal position with respect to the position of the hooking claw in the projection surface of the lamp socket, the lamp socket can be firmly attached.

  Further, since the lamp socket base 34 is provided with a plurality of sets of locking holes 341 for hooking the hooking claws 337 and screw holes 342 for screwing the screwing portions 335, different sizes of the same fixture body are used. A spiral fluorescent lamp can be mounted, and cost reduction and productivity improvement can be achieved by sharing parts.

(Second Embodiment)
Next, the lighting fixture 10B of 2nd Embodiment which concerns on this invention is demonstrated. In addition, the same code | symbol is attached | subjected to the site | part which is common in the lighting fixture 10 of 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

As shown in FIGS. 15 and 16, in the lighting apparatus 10 </ b> B according to the second embodiment, in the support spring 38 that supports the spiral fluorescent lamp 40, the holding spring 381 that holds the base 42 and the swirl of the spiral fluorescent lamp 40. A rotation restricting piece 382 that restricts rotation around the axis CL is provided integrally, and the rotation restricting piece 382 is provided on the opposite side of the holding spring portion 381 with respect to the axis L1 of the arc tube 41. That is, the holding spring 381 holds the base 42 from the outside, and the rotation restricting piece 382 is provided inside the arc tube 41.
Note that the lower end portion of the holding spring 381 is bent outward, and an introduction portion 381A is provided. Further, the lower end portion of the rotation restricting piece 382 is bent inward to provide an introduction portion 382A.

Further, the rotation restricting piece 382 contacts the side surface (rotation restricting surface 431) opposite to the lamp pin 44 in the bridge 43 connecting the pair of caps 42, 42 of the spiral fluorescent lamp 40. Alternatively, it is provided so as to be able to come into contact with a slight gap.
Accordingly, the rotation restricting piece 382 disposed inside the arc tube 41 causes the rotation of the bridge 43 when the spiral fluorescent lamp 40 rotates in the direction in which the lamp pin 44 drops from the lamp socket 33 (the direction of arrow A in FIG. 15). The rotation is restricted by contacting with the restriction surface 431.

Next, based on FIG. 17, the operation | movement which mounts the spiral fluorescent lamp 40 to the instrument main body 20 is demonstrated.
First, as shown in FIG. 17A, the lamp pin 44 (see FIG. 3) of the spiral fluorescent lamp 40 is aligned with the position of the insertion port 333 (see FIG. 7) of the lamp socket 33, and the spiral fluorescent lamp 40 is placed. Approach the instrument body 20. At this time, the holding spring portion 381 of the support spring 38 is located below the outer position of the base 42 (upward in FIG. 17A), and the rotation restricting piece 382 is below the inner side surface of the end portion of the arc tube 41 (see FIG. 17 (A) above.

Next, as shown in FIG. 17B, first, the introduction portion 381A of the holding spring portion 381 contacts the outer surface of the base 42, and the holding spring portion 381 is expanded outward. Further, when the spiral fluorescent lamp 40 is moved to the instrument body 20 side, the introduction portion 382A of the rotation restricting piece 382 passes inside the end portion of the arc tube 41.
At this time, depending on variations in dimensions of the spiral fluorescent lamp 40 (variations in the diameter of the tube itself, variations in the spiral shape, etc.), the rotation restricting piece 382 also contacts the spiral fluorescent lamp 40 and expands inward.
17C, the holding spring portion 381 holds the base 42 from the outside, and the rotation restricting piece 382 is the rotation restricting surface of the bridge 43 of the spiral fluorescent lamp 40 inside the end portion of the arc tube 41. 431 abuts. Alternatively, they face each other with a slight gap.

  As described above, according to the lighting apparatus 10B of the second embodiment of the present invention described above, the rotation restricting piece 382 is provided on the opposite side of the holding spring portion 381 with respect to the axis L1 of the arc tube 41. The base 40 and the arc tube 41 are sandwiched between the base spring 382 and the holding spring portion 381, and the base 42 can be reliably held by the holding spring portion 381.

  Further, since the rotation restricting piece 382 can contact the rotation restricting surface 431 opposite to the lamp pin of the bridge 43 connecting the pair of caps 42 of the spiral fluorescent lamp 40, the lamp pin 44 of the spiral fluorescent lamp 40 falls off. It can be reliably prevented from rotating in the direction.

  In addition, the lighting fixture of this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

DESCRIPTION OF SYMBOLS 10,10B Lighting fixture 20 Appliance main body 35,38 Support spring 351,381 Holding spring part 352,382 Rotation restriction piece 40 Spiral fluorescent lamp 41 Light emitting tube 42 Base 43 Bridge 431 Rotation restriction surface (opposite side surface)
44 Lamp pin
CL swivel axis L1 arc tube axis

Claims (5)

An arc tube having a tubular discharge path spirally swung along the same plane starting from the center in the longitudinal direction, a pair of caps respectively provided at both ends of the arc tube, and the cap provided on the cap A spiral fluorescent lamp comprising: a lamp pin extending along a plane orthogonal to the pivot axis of the arc tube;
An instrument body on which the spiral fluorescent lamp is mounted,
A luminaire provided with a support spring in which a holding spring portion that holds the base and a rotation regulating piece that regulates rotation of the spiral fluorescent lamp around the pivot axis in the vicinity of the base are integrated. The lighting fixture according to claim 1,
The lighting fixture in which the rotation restricting piece elastically holds the arc tube of the spiral fluorescent lamp. The lighting fixture according to claim 1 or 2,
The lighting fixture in which the rotation restricting piece contacts the arc tube after the holding spring portion contacts the base when the spiral fluorescent lamp is mounted. The lighting fixture according to claim 1 or 2,
The lighting fixture in which the rotation restricting piece is provided on the opposite side of the holding spring portion with respect to the axis of the arc tube. The lighting fixture according to claim 4,
The lighting fixture in which the rotation restricting piece can come into contact with a side surface opposite to the lamp pin of a bridge connecting the pair of caps of the spiral fluorescent lamp.

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