JP2011216289A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire capable of providing an auxiliary light source part without enlarging a size, in the luminaire using a spiral fluorescent lamp.SOLUTION: A uniform illumination light of surface luminescence is obtained since using the spiral fluorescent lamp 40 having an arc tube 41 with a tube-like discharge path provided spirally along the same plane from a longitudinal-directional central part 411 as a starting point. A space is effectively utilized, and the upsizing of the luminaire body 20 and the upsizing of the luminaire 10 can be avoided, since the auxiliary light source part 36 is provided in at least one portion along an extension direction of a lamp pin 44 in the luminaire body 20 and where the arc tube 41 is not positioned.

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. 15, a lighting apparatus 100 described in Patent Document 1 is used by being fixed to a wall surface 101 such as a ceiling or a wall. For example, a rectangular box-shaped apparatus main body 102 and a front surface of the apparatus main body 102 are used. A panel 103 made of a transparent or translucent resin or the like covering the opening is provided. An electrical component such as a lighting device 105 connected to a commercial AC power supply (not shown) is attached to the bottom plate 104 of the appliance main body 102 near one end, and covers the lighting device 105 and the like, and the panel 103 is attached. A mounting plate 106 for mounting is provided. From the central part and the other end of the bottom plate 104, a reflection plate 108 is provided to improve the illumination efficiency by reflecting the illumination light of the spiral fluorescent lamp 107 toward the panel 103, and is provided on the upper surface of the reflection plate 108. A pair of lamp sockets 109 and 109 for mounting the spiral fluorescent lamp 107 are attached.

Therefore, the spiral fluorescent lamp 107 is mounted by attaching the lamp pins 112 provided on the caps 111, 111 at both ends of the spiral fluorescent lamp 107 to the lamp socket 109.
Thereby, uniform illumination light can be obtained by surface emission.

Japanese Patent Laying-Open No. 2009-176657 (FIG. 1)

By the way, when providing an auxiliary light source in a lighting fixture, in a conventional lighting fixture using a ring-shaped fluorescent lamp, there is a space in the central portion inside the ring-shaped fluorescent lamp, and therefore, the auxiliary light source is disposed in this portion. ing.
However, in a lighting fixture using a spiral fluorescent lamp like the lighting fixture described in Patent Document 1 described above, an installation space cannot be secured inside the spiral fluorescent lamp, and an auxiliary light source is provided outside the spiral fluorescent lamp. Therefore, there is a problem in that the size of the lighting fixture is increased.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a luminaire that can provide an auxiliary light source unit without causing an increase in size in a luminaire using a spiral fluorescent lamp. To do.

  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 A lamp pin that extends along a plane orthogonal to the axis of rotation of the arc tube, and an instrument body that mounts the spiral fluorescent lamp. An auxiliary light source unit is provided in at least one location in the extending direction and where the arc tube is not located.

  Moreover, the lighting fixture of this invention provides the light-shielding member which prevents that the light from an auxiliary light source part is irradiated to a spiral fluorescent lamp.

  INDUSTRIAL APPLICABILITY The present invention can provide a lighting fixture that can effectively use a space and has an effect of avoiding an increase in the size of the fixture body and an increase in the size of the lighting fixture.

The disassembled perspective view which shows the whole structure of the lighting fixture of embodiment which concerns on this invention The disassembled perspective view which shows the detailed structure of the lighting fixture of 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 body and a spiral fluorescent lamp, and (B) is an enlarged perspective view of a state where 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 a bottom view of the lamp socket as viewed from below, (B) is a sectional view taken along the line BB 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 | worn the spiral fluorescent lamp to 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 Disassembled perspective view of a luminaire using a conventional spiral fluorescent lamp

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
As shown in FIG. 1, the lighting fixture 10 of 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 claws 337 and a screw that fixes the screw fixing portion 335 to the screw 338. A screw hole 342 serving as a stop 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 described above, according to the luminaire 10 of the embodiment according to the present invention described above, the spiral fluorescent tube has the arc tube 41 in which the tubular discharge path is spirally swung along the same plane starting from the longitudinal central portion 411. Since the lamp 40 is used, uniform illumination light can be obtained by surface emission. Further, 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 can be increased, and the lighting fixture 20 can be used. 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, 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.

  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.

  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.

  The lamp socket 33 has a hooking claw 337 and a screwing portion 335. Since the hooking claw 337 is hooked and the screwing portion 335 is fastened with a screw 338, the lamp socket 33 is attached from the lamp socket 33 side. Can be attached. 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.

  In addition, since a plurality of sets of the locking holes 341 for hooking the hooking claws 337 and the screw holes 342 for fixing the screwing portions 335 to the screws 338 are provided in the lamp socket base 34, different sizes are used by using the same instrument body. The spiral fluorescent lamp can be mounted, and cost reduction and productivity improvement can be achieved by sharing parts.

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

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 Appliance main body 36 Auxiliary light source part 366 Light-shielding member 40 Spiral fluorescent lamp 41 Light emission tube 411 Center part 42 Base 44 Lamp pin CL Turning axis

Claims (2)

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,
The lighting fixture which provided the auxiliary light source part in the extension direction of the said lamp pin in the said fixture main body, and the at least one location where the said arc tube is not located. The lighting fixture according to claim 1,
A luminaire provided with a light blocking member for preventing light from the auxiliary light source from being applied to the spiral fluorescent lamp.

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