JPH05307906A - Annular fluorescent lamp - Google Patents

Abstract

PURPOSE:To improve the reliability in the case where one annular fluorescent lamp is supported by two support members, and prevent the fall of the annular fluorescent lamp. CONSTITUTION:A central base part 435 of slave holders 431, 432 is installed inside of a supporting block so as to be oscillated freely in a certain range along the diameter direction of annular fluorescent lamps 201, 202 and so as not to be oscillated in the bulb axial direction of a bulb part 204 supported by the slave holders 431, 432. One socket block 300 is provided with plural main holders 340 corresponding to the number of the annular fluorescent lamps 201, 202, and a supporting block 400 is provided with plural slave holders 431, 432. Furthermore, the main holder 340 is connected to a socket 350 connected to the annular fluorescent lamps 201, 202, and the other end of a connecting wire 357 extended from the socket 350 is connected to a luminaire main body 100.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an annular fluorescent lamp fixture using an annular fluorescent lamp, and more particularly to a supporting structure for the annular fluorescent lamp.

[0002]

2. Description of the Related Art In this type of ring fluorescent lamp fixture, the ring fluorescent lamp is detachably supported by a total of three equilaterally spaced leaf springs. Support When the number of support members is reduced from three to two, it is not enough to have a leaf-shaped leaf spring, and it is necessary to make it possible to hold one by one. An example of such a supporting member is shown in Japanese Utility Model Laid-Open No. 52-112182. The support member described in the publication is of a form in which the tube portion of the ring-shaped fluorescent lamp is elastically held by both legs. Two such support members are used for each ring-shaped fluorescent lamp. One of the support members is normally attached to the instrument body. The other support member is attached to the instrument body so as to be swingable. Part of the harmful force exerted between the support members due to the variation in the ring diameter in the ring fluorescent lamp is absorbed by the swing mechanism. The swing of the support member is allowed by the deformation of the elastic spacer.

[0003]

[Problems to be Solved by the Invention]
The support member described in Japanese Patent Publication No. 82 is swingable with respect to the instrument body, but as the inclination increases, the elastically displaced position of the spacer increases and the restoring force becomes stronger. Therefore, a considerable force that acts between the pair of support members may remain. In this case, the two fluorescent leaf springs are close to a state in which the ring-shaped fluorescent lamp is supported at two points, and are easily dropped. The ring-shaped fluorescent lamp also falls off when the support member is removed from the main body of the device. In this case, the ring-shaped fluorescent lamp is suspended through the connecting wire, but this alone is uneasy because the connection between the base portion on the ring-shaped fluorescent lamp side and the socket on the connecting wire side is weak. On the other hand, since each support member is individually attached to the main body of the device, the work amount increases in the case of a multi-ring type fluorescent light fixture using a plurality of annular fluorescent lamps, which is a burden on assembly.
Moreover, when the ring-shaped fluorescent lamps are close to each other, the mounting work is difficult. An object of the present invention is to enhance the reliability of support when one ring-shaped fluorescent lamp is supported by two support members,
Or, it is to prevent the ring-shaped fluorescent lamp from falling.

[0004]

According to the present invention, there is provided a device main body and a ring-shaped fluorescent lamp arranged on the lower surface side thereof,
A socket block that detachably supports the base of the ring-shaped fluorescent lamp and that supplies power is fixed to the fixture body, and a support block that detachably supports the pipe part on the opposite side of the ring-shaped fluorescent lamp to the fixture body is fixed. The socket block includes a main holder made of a leaf spring that elastically holds both lateral rules of the mouthpiece with both legs, and the support block elastically holds both lateral sides of the pipe section with both legs. A sub-holder made of a leaf spring that is held by The central base of the main holder is firmly fixed in the socket block. Further, the center base of the sub-holder is freely swung in a constant range along the ring-shaped direction of the ring-shaped fluorescent lamp, and is not swung in the tube axis direction of the tube portion supported by the sub-holder. Mounted in the support block. On the other hand, when using a plurality of ring-shaped fluorescent lamps having different ring diameters, a plurality of main holders are provided in one socket block fixed to the instrument body, and a plurality of main holders are fixed in one support block fixed to the instrument body. Provide a sub holder.
Further, in order to prevent the ring-shaped fluorescent lamp from dropping, the main holder in the socket block and the socket for connecting the ring-shaped fluorescent lamp are connected, and the other end of the connecting wire extending from the socket is connected to the main body of the device. To do.

[0005]

The central base portion of the sub holder freely swings in a certain range along the radial direction of the annular fluorescent lamp, and does not swing in the axial direction of the tube portion supported by the sub holder. The variation in the ring diameter of the ring fluorescent lamp to be supported is
It is absorbed by the swing of the secondary holder. The slave holder takes an appropriate posture in a direction according to the ring diameter, but no restoring force for correcting the direction is generated regardless of the direction. Therefore, the force acting between the main holder and the sub holder does not occur. The role of the support block when multiple subsidiary holders are attached is
That is, each sub-holder is attached to the instrument body together.
This also applies to the socket block. The connection between the main holder and the socket and the connection between the other end of the connection line and the main body of the fixture are for connecting the ring-shaped fluorescent lamp to the main body of the fixture through the connection line. If the main holder itself falls off, the ring-shaped fluorescent lamp cannot be held in place, but the function of connecting the ring-shaped fluorescent lamp with the connecting line remains. The role of the main holder in this situation is to strengthen and secure the connection between the ring-shaped fluorescent lamp and the socket. After falling off, the main holder remains connected to both the ring fluorescent lamp and the socket.

[0006]

Embodiments Embodiments shown in FIGS. 1 to 4 will be described below. This is a hanging type ring-shaped fluorescent lamp fixture for two lamps, but illustration of a feminine shade and the like is omitted. As shown in FIG. 1 and FIG. 2, the instrument body 100 is an inverted dish-shaped backbone 1.
It is a container shape in which 10 and a dish-shaped reflection plate 120 are vertically combined. A circuit board 131, a switch 132, a safety ball 133, etc., which functions as a lighting device with an electronic component attached therein, is housed therein. Reference numeral 141 is a ceiling rosette mounted on the ceiling surface, 142 is a hanging cord, and 143 is a cord box.
Is supported by middle and high schools. Reference numeral 121 is a light-transmitting cover for a safety ball, which is attached to a central opening of the opposite plate 120. 201 and 2
Reference numeral 02 denotes a ring-shaped fluorescent lamp arranged on the lower surface of the device body 100, and has a base portion 203 in the middle of the ring. The ring diameter of the ring-shaped fluorescent lamp 201 is slightly larger than the outer diameter of the instrument body 100. The ring-shaped fluorescent lamp 202 has not only its ring diameter,
The ring inner diameter also greatly exceeds the outer diameter of the instrument body 100. 300
Is a socket block. This is a ring-shaped fluorescent lamp 20
This is for detachably holding the base portion 203 of the Nos. 1 and 202 and for supplying electric power. As shown in FIG. 3, the structure is such that a main holder 340 and a socket 350 are incorporated between a pair of substantially symmetrical block halves 311 and 312. The block halves 311 and 312 are made of synthetic resin, and are integrally connected by a set screw 313 to form one socket block body. The legs 314 on the upper side of the socket block body are fixed to the backbone 110 of the instrument body as follows. Legs 314 Upper end One side protrusion 31
5 is inserted into the extrusion bag portion 111 of the backbone 110. The protrusion 316 on the other side of the upper end of the leg 314 is fixed by bending the tip of the cut-and-raised claw 112 of the backbone 110. The leg 314 is sandwiched between the upright surface 113 of the backbone 110 and the cut and raised claw 112. The space in the leg portion 314 of the socket block body communicates with a pair of storage portions 317 branched into two. A curved portion 318 is formed below each storage portion 317. In this way, the storage unit 31
7, two sets of places corresponding to the curved portion 318 are prepared, and the main holder 340 and the socket 350 are respectively assembled therein.
In FIG. 3, one set of main holder 340 and socket 350
Only the main holder and socket having the same structure are omitted from the drawing. Socket block 3
The main holder 340 of No. 00 is made by processing a metal leaf spring. The main holder 340 includes a pair of foot pieces 341, 342 having a shape suitable for elastically holding the base portion 203 of the ring-shaped fluorescent lamp 201 or 202 from both lateral sides. The pair of legs 341 and 342 are integrally connected via a central base 343. The central base 343 has a horizontal U shape and is open on the upper surface side. Cut-and-raised nails 3 cut and raised on both sides of the U-shape toward the center of the U-shape.
44 is formed. Only one of the cut and raised claws 344 of FIG. 3 is visible, and the other one in the opposing position is not visible. The socket 350 of the socket block 300 has the base portion 203.
For receiving and electrically connecting four connection pins (not shown). A mounting flange 351 is provided on the outer periphery of the end portion on the connecting wire 357 side. Further, a locking recess 352 is provided at a position adjacent to the mounting flange 351. Although only one locking recess 352 is visible in FIG. 3, there is another locking recess 352 on the opposite side. Reference numeral 359 denotes a connecting plug provided on the other end side of the connecting wire 357, and 358 denotes a connecting lock portion thereof. The connection plug 359 is connected and fixed to the power supply part of the circuit board 131 inside the device main body, specifically, and is firmly locked by the connection locking part 358. This connection and fixation should be so firm that the connection wire 357 will not come off even when unexpectedly strong tension is applied. The main holder 340 is connected to the socket 350 such that its U-shaped central base 343 is clung to the body of the socket 350 below the mounting flange 351 and the pair of cut-and-raised claws 344 engage with the respective locking recesses 352. To be done. This join is completed without the help of block halves 311 and 312. The central base 343 of the main holder 340 and the socket 350, which are coupled to each other, are arranged in the housing 317 of the socket block body. At this time, socket 3
The mounting collar 351 of the 50 is a half block 311, 312 of each block.
Engage with the slit 319. Also, socket 3
A part of 50 protrudes toward the curved portion 318 side of the block halves 311 and 312. On the other hand, the foot piece 3 of the main holder 340
41 and 342 are located in the curved portion 318, but the curved portion 3
Don't touch 18 In relation to the instrument body 100,
A part of the socket block 300 is located inside the instrument body 100. However, most of the part is discharged to the outside of the instrument body 100 and exposed. Reference numeral 122 denotes a discharge notch for that purpose, which is formed in the peripheral green portion of the reflection plate 120. Reflector 1
The portions on both sides of the discharge notch 122 of 20 are fixed to the peripheral portion of the backbone 110 by the laterally set screws 123 and 124. The set screws 123 and 124 are the reflection plate 120.
Also serves to reinforce the vicinity of the discharge notch 122, which is weak in strength. 400 is a support block. This is for the base portion 203 of the ring-shaped fluorescent lamps 201 and 202 to detachably hold the tube portion 204 (see FIG. 1) on the opposite side. The structure is as shown in FIG.
A pair of sub-holders 431 and 432 are attached to a support block main body including the 10 and the metal fitting cover 420. The pair of sub-holders 431 and 432 have the same shape and are mounted in substantially the same manner. The support metal fitting 410 of the support block 400 has a substantially U-shaped cross section and a substantially inverted gutter shape. A pair of shaft holes 411 facing the U-shaped both foot surfaces are provided for two sets of total 4
Form individually. In FIG. 4, the two shaft holes 411 located at the back are shown.
Can't see. 412 is an insertion piece, 413 is a receiving hole, 414
Is a blind hole. Metal fitting cover 420 of the support block 400
Is an almost container-like shape that opens to the upper side and is molded integrally with synthetic resin. This covers the lower surface and side surfaces of the support fitting 410 from below. 421 is a pair of shaft holes, 423 is a total of three attachment claws, and 424 is a support hole. 425 is each shaft hole 4
Grooves 426 facing 21 are holder receiving holes that penetrate vertically. Secondary holders 431 and 432 of the support block 400
Is made by processing a metal leaf spring. The sub-holders 431 and 432 are annular fluorescent lamps 201 or 202.
A pair of foot pieces 4 having a shape suitable for elastically embracing the tube portion 204 (see FIG. 1) on the side opposite to the mouthpiece portion 203 of both sides from both sides.
33 and 434 are provided. The pair of foot pieces 433, 434 are integrally connected via a central base 435. Central base 435
Is the part where both bases of the feet are closely facing each other and extends in the vertical direction. Reference numeral 436 is a shaft hole formed in the upper end of the central base 435. The shaft hole 436 has a substantially tubular shape facing sideways. Reference numeral 437 is an elastic body attached to the lower free end of each of the foot pieces 433 and 434. The support block 400 is the instrument body 1
It is fixed at 00. For this fixing, the instrument body 100
The insertion hole 125, the screw hole 126, and the pair of locking holes 127 are formed in a part of the reflection plate 120 belonging to. Screw hole 12
The peripheral portion of 6 is formed in a step shape in which the inclination of the reflection plate 120 is corrected. A pair of support shafts 441 are used for assembling the support block 400. This is a kind of set screw having a screw carved on the tip. Insert the tip of this support shaft 441 into the shaft hole 42
1, 411, 436 in order, and the tip is screwed into another shaft hole (not shown) facing the shaft hole 411 of the support fitting 410. The tip of the screwed shaft 441 is a groove 425.
Fits in. In this state, the mounting claw 422 of the metal fitting cover 420 is engaged with the receiving hole 413 of the support metal fitting 410. To mount the support block 400, the insertion piece 412 is inserted into the support metal fitting 410 into the insertion hole 125 of the reflection plate 120, the pair of mounting claws 423 of the metal fitting cover 420 are engaged with the respective locking holes 127 of the reflection plate 120, and Set screw 44
2 is the support hole 424 of the metal fitting cover 420 and the support metal fitting 4
10 through the stop hole 414, the screw hole 126 of the reflection plate 120.
Screw it in. The base portion 203 of the ring-shaped fluorescent lamps 201 and 202 is provided on both legs 341 and 342 of the main holder 340.
It is elastically mounted in between and electrically connected to the socket 350. At the time of this attachment and connection, the base portion 203 is pressed toward the socket 350. Both foot pieces with this 3
Excessive deformation of 41, 342 is prevented by the bend 318. The block halves 311 and 3 of the socket block 300 are affected by the ultraviolet rays emitted from the ring-shaped fluorescent lamps 201 and 202.
When 12 is deteriorated and damaged, the ring-shaped fluorescent lamps 201 and 202 are lowered slightly together with the socket 350 and the main holder 340. However, it is connected by the connecting wire 357 extending from the socket 350. Under this circumstance, the socket 350 is likely to come off from the base portion 203, and the bonding force between them cannot be expected so much, but the socket 350 is connected to the base portion 2 and is not expected.
The main holder 340, which holds 03, acts to strengthen the bond between them. The tube portion 204 (see FIG. 1) on the side opposite to the base portion 203 of the ring-shaped fluorescent lamps 201 and 202 is elastically inserted and mounted between both leg pieces 433 and 434 of the sub-holders 431 and 432. Ring fluorescent lamp 201, 202
Since the base portion 203 of the above is already supported by the socket block 300, the pipe portion 204 may not be positioned in the center of the both leg pieces 433 and 434. The direction is changed as the mounting of the part 204 progresses. Further, in order to ensure that, the shaft holes 436 of the sub-holders 431 and 432 are made thick enough to allow the support shaft 441 to be loosely inserted, and can be swingable around the support shaft 441. Further, the direction of the support shaft 441 is set to the sub holder 43.
The tube portion 204 held by the nozzles 1 and 432 is made to coincide with the direction in which the tube portion extends (the direction of the centerline of the tube). Therefore, the sub holder 43
Reference numerals 1 and 432 are swingable in the radial direction of the annular fluorescent lamps 201 and 202. However, it does not swing in the direction orthogonal to it. Sub holder 431,
432 is swingable in the radial direction, and the swing is allowed until the center base portion 435 of the sub-holders 431, 432 tilts too much and hits the periphery of the holder receiving hole 426 of the fitting cover 420. The swing range is selected so as to cover the variation in ring diameter of the ring-shaped fluorescent lamps 201 and 202. It is possible to freely swing within the swing allowable range, and resistance force when changing direction or restoring force after changing direction does not act. The pipe portion 204 is held between the two leg pieces 433 and 434 in a desired orientation at a position corresponding to the variation in the ring diameter, but the force for correcting the position of the pipe portion 204 is not received. Therefore, no force acts on the socket block 300. The embodiment shown in FIG. 5 is obtained by adding the parts omitted in the above embodiment. The part code quotes the previous one and omits the duplicated explanation. 144 is a code box cover that covers the code box 143 in a good appearance.
Reference numeral 150 is a shade that is placed on the upper surface of the outer periphery of the instrument body 100, especially the backbone 110 thereof, and covers the ring-shaped fluorescent lamps 201 and 202. Socket 35 via connecting wire 357
The connection plug 359 connected to 0 is connected and fixed to the circuit board 131 in the instrument body 100, and is locked by the connection locking portion 358. There are suspension legs 134 supporting the circuit board 131 in the immediate vicinity of the connection plug 359, and the load applied to the connection plug 359 is transmitted to the backbone 110 via the circuit board 131 and further via the suspension legs 134. Therefore, the ring-shaped fluorescent lamps 201 and 202 can be supported by the connection plug 359 and the connection line 357.

[0007]

According to the present invention, the sub holder freely swings in a certain range along the radial direction of the annular fluorescent lamp,
There is no stress that resists rocking. Therefore, even if the ring diameter of the ring-shaped fluorescent lamp varies, there is no force acting between the main holder and the sub-holder, and the ring-shaped fluorescent lamp can be stably supported. Also, even when multiple sub-holders are attached,
Since they can be collectively attached to the instrument body via the support block, workability is good. On the other hand, since the main holder and the socket are connected to each other, the ring-shaped fluorescent lamp can be secured via the connecting line in case of emergency, so the safety is high.

[Brief description of drawings]

FIG. 1 is a front view of a main part of an annular fluorescent lamp fixture according to the present invention.

[Figure 2] Partially cutaway bottom view

FIG. 3 is an exploded perspective view of the socket block portion.

FIG. 4 is an exploded perspective view of a support block portion thereof.

FIG. 5 is a partially cutaway front view of a ring-shaped fluorescent lamp fixture showing another embodiment.

[Explanation of symbols]

100 ... Instrument main body, 110 ... Backbone 111 ... Extrusion bag part, 112 ... Cut-and-raised claw, 113 ... Upright surface, 120 ... Reflector 121 ... Security ball translucent cover, 122 ... Discharge notch, 1
23 ... Set screw 124 ... Set screw, 125 ... Insertion hole, 126 ... Screw hole, 127 ... Locking hole 131 ... Circuit board, 132 ... Switch 133 ... Security ball 141 ... Ceiling rosette, 142 ... Hanging cord 143 ... Cord Box 201 ... Ring fluorescent lamp, 202 ... Ring fluorescent lamp 203 ... Base portion, 204 ... Tube portion 300 ... Socket block 311 ... Block half body, 312 ... Block half body, 314
... Legs 315 ... Projections, 316 ... Projections, 317 ... Accommodation section, 3
18 ... Bending part 340 ... Main holder 341 ... Foot piece, 342 ... Foot piece, 343 ... Center base part, 34
4 ... Cut-and-raised claw 350 ... Socket, 351 ... Mounting flange, 352 ... Locking recess, 357 ... Connection wire, 358 ... Connection locking part 359 ... Connection plug 400 ... Support block 410 ... Support metal fitting, 411 ... Shaft hole, 412 ... insert piece,
413 ... Receiving hole, 414 ... Stop hole 420 ... Metal fitting cover, 421 ... Shaft hole, 423 ... Mounting claw, 424 ... Support hole, 425 ... Groove 426 ... Holder receiving hole 431 ... Secondary holder, 432 ... Secondary holder 433 ... Foot piece 434 ... Legs, 435 ... Central base, 43
6 ... Shaft hole 437 ... Elastic body 441 ... Spindle, 442 ... Set screw

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[Procedure amendment]

[Submission date] June 25, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 5]

[Figure 3]

[Figure 4]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masayuki Fujisawa, 69 Wakashiba-cho, Ryugasaki-shi, Ibaraki Hitachi Lighting Co., Ltd.Ryugasaki factory (72) Inventor Nagatsugu Ohashi 69, Wakashiba-cho, Ryugasaki-shi, Ibaraki Hitachi Lighting Co., Ltd. Ryugasaki Factory

Claims (7)

[Claims] 1. A base for a ring-shaped fluorescent lamp, comprising a body of the device and a ring-shaped fluorescent lamp arranged on the lower surface side thereof, a socket block for detachably supporting a base part of the ring-shaped fluorescent lamp and supplying electric power is fixed to the body of the device. Main holder made of leaf springs, in which a support block that detachably supports the tube portion on the side opposite to the base portion is fixed to the instrument body, and the socket block elastically embraces both lateral sides of the mouthpiece portion with both legs. The support block includes a sub-holder made of a leaf spring that elastically holds both lateral sides of the pipe section with both legs, and the central base of the main holder is fixed in the socket block. The center base of the holder is freely rocked in a certain range along the ring diameter direction of the ring-shaped fluorescent lamp, and is supported so as not to rock in the tube axis direction of the tube part supported by the slave holder. Specially installed in the block Ring-shaped fluorescent lamp fixture to be. 2. A central base portion of the sub-holder is swingable about an axis thereof via a support shaft extending along a tube axis direction of a tube portion supported by the sub-holder in the annular fluorescent lamp. The ring-shaped fluorescent lamp fixture according to claim 1, which is mounted in a support block. 3. The ring-shaped fluorescent lamp apparatus according to claim 1, wherein both legs of the sub-holder are suspended from a support block so as to be swingable in the ring-diameter direction of the ring-shaped fluorescent lamp. 4. The range in which the sub holder swings along the radial direction of the ring-shaped fluorescent lamp is limited by applying the central base of the sub holder to a support block, and the sub holder can swing freely within the limited range. The ring-shaped fluorescent lamp fixture according to claim 1. 5. An instrument main body and a plurality of annular fluorescent lamps having different ring diameters arranged on the lower surface side of the instrument main body, and one socket block for detachably supporting and supplying power to the base portion of each annular fluorescent lamp. One support block, which is fixed to the main body and detachably supports the tube portion on the side opposite to the base portion of each annular fluorescent lamp, is fixed to the main body of the fixture, and the socket block has both lateral sides of the base portion on both legs. A plurality of leaf spring-made main holders elastically hugging, and the support block comprises a plurality of leaf spring sub-holders elastically hugging both lateral sides of the pipe section with both legs. An annular fluorescent light fixture characterized by being equipped. 6. A plurality of ring-shaped fluorescent lamps having a ring diameter larger than the outer diameter of the fixture body, one end of which is overlapped with the fixture body, and the other end of which is provided with a socket block having a length that is overlapped with each of the ring-shaped fluorescent lamps. 1. A support block of any length.
Alternatively, the ring fluorescent lamp fixture according to claim 5. 7. A base for a ring-shaped fluorescent lamp, comprising a body of the device and a ring-shaped fluorescent lamp arranged on the lower surface side thereof, wherein a socket block for detachably supporting the base of the ring-shaped fluorescent lamp and supplying power is fixed to the body of the device. Main holder made of leaf springs, in which a support block that detachably supports the tube portion on the side opposite to the base portion is fixed to the instrument body, and the socket block elastically embraces both lateral sides of the mouthpiece portion with both legs. A ring-shaped fluorescent lamp fixture, characterized in that the main holder is connected to a socket connected to the ring-shaped fluorescent lamp, and the other end of a connecting line extending from the socket is connected to the main body of the device.