JP2009176683A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire that prevents a lamp from being damaged by reducing stress applied to the lamp when detached. <P>SOLUTION: The luminaire includes: a luminaire body 2; two sockets 3 to which is connected a fluorescent lamp (lamp) 1 in which a terminal pin 11a is provided, so as to project in a direction perpendicular to the length direction of a straight tube-type bulb 10, at each of two bases 11 and 11 provided on side surfaces of both ends of the bulb 10; and a socket mount 32 for fixing the two sockets 3 to the luminaire body 2. Each socket 3 has: a socket body 30 provided with a terminal pin-insert hole into which the terminal pin 11a is inserted; and a conducting block (not shown) that is connected to a lighting device 4 that lights the fluorescent lamp 1 and that touches and electrically conducts to the terminal pin 11a. When an operation lever (operation part) 35a of the socket mount 32 is operated, a movable protrusion 35b pushes out the base 11 in a direction apart from the socket 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lighting fixture.

  Conventionally, when a plurality of fluorescent lamps are juxtaposed in the longitudinal direction by providing caps on the side surfaces of both ends in the longitudinal direction (tube axis direction) of the bulb of the straight tube type fluorescent lamp, A fluorescent lamp that does not generate a non-light emitting portion at both ends and a socket that can be used for the fluorescent lamp have been proposed (see Patent Document 1), and this type of fluorescent lamp and a socket that can be used for the fluorescent lamp were used. The thing of the structure shown in FIG. 5 is proposed as a lighting fixture.

  The luminaire having the configuration shown in FIG. 5 uses a fluorescent lamp 1 as a lamp, and has a long box-shaped instrument body 2 ′ attached to a ceiling or the like, and both ends in the longitudinal direction of the instrument body 2 ′. A pair of sockets 3 ′ and 3 ′ that are detachably attached to the caps 11 and 11 of the fluorescent lamp 1, and a lighting device 4 ′ that is housed inside the instrument main body 2 ′ and supplies the fluorescent lamp 1 with power to light it. Is provided.

  Here, the fluorescent lamp 1 has a straight tube type bulb 10 and is provided with caps 11 and 11 on the side surfaces of both end portions in the longitudinal direction of the bulb 10, and two terminal pins 11 a from each of the caps 11. (See FIG. 7) is provided so as to project in one direction orthogonal to the longitudinal direction of the fluorescent lamp 1. Further, the socket 3 ′ is formed in a rectangular parallelepiped shape, and a socket body 30 ′ in which a terminal pin insertion hole (not shown) into which the terminal pin 11a is inserted is provided on a surface where the base 11 abuts, and a cross section in which a lower part is opened. And a support spring 31 'formed of a leaf spring that elastically clamps the base 11 from a direction perpendicular to the longitudinal direction of the bulb 10 and perpendicular to the protruding direction of the terminal pin 11a.

  Here, as shown in FIG. 6, the support spring 31 ′ has a rectangular central piece 31 a ′ in a top view that is arranged on the surface opposite to the surface on which the base 11 abuts in the socket body 30 ′. And leg pieces (spring pieces) 31b 'and 31b' extending downward from two sides facing each other in a direction orthogonal to the longitudinal direction of the instrument body 2 'of the central piece 31a'. , 31b ′ are formed with bent projections 31c ′ and 31c ′ protruding in directions closer to each other than the other portions of the leg pieces 31b ′ and 31b ′. On the other hand, on the both sides of the base 11 of the fluorescent lamp 1 perpendicular to the longitudinal direction of the bulb 10, locked convex portions 11 b, 11 b that engage with the locking convex portions 31 c ′, 31 c ′ protrude. Here, in a state where the base 11 is mounted on the socket 3 ′, the locking projections 31 c ′ and 31 c ′ lock the locked projections 11 b and 11 b located above the locking projections 31 c ′ and 31 c ′. Prevents falling. Further, the protrusions 11b and 11b of the cap 11 have the largest protrusion at the center in the direction along the protruding direction of the terminal pin 11a (the vertical direction in FIGS. 6A and 6B). On the other hand, the leg pieces 31b 'and 31b' of the support spring 31 'are elastically deformed when the base 11 is removed from the socket 3'. Since the locking projections 31c ′ and 31c ′ are displaced in the direction away from each other along the inclined surface, the state in which the locking projections 31c ′ and 31c ′ lock the locked projections 11b and 11b is released. Is done. Thus, the base 11 can be removed from the socket 3 ′ by applying a force downward to the base 11 in the direction along the protruding direction of the terminal pin 11 a (direction A 1 in FIG. 7).

Further, in the lighting fixture having the configuration shown in FIG. 5, socket bases 32 ′ and 32 ′ for attaching the sockets 3 ′ and 3 ′ to the fixture body 2 ′ are arranged near both ends in the longitudinal direction of the fixture body 2 ′. The socket body 30 ′ is fixed to the socket base 32 ′. Further, the sockets 3 ′ and 3 ′ are electrically connected to the above-described lighting device 4 ′ via wirings 42 ′ and 42 ′.
JP 2004-363029 A

  By the way, the bulb 10 of the fluorescent lamp 1 is formed of a straight tube type glass tube. However, in the lighting fixture having the configuration shown in FIG. 5, the fluorescent lamp 1 is covered with the caps 11 provided at both ends of the bulb 10. Since the locking projections 11b and 11b are held by the locking projections 31c ′ and 31 ′ of the support springs 31 ′, the fluorescent lamp 1 is removed from the two sockets 3 ′ and 3 ′. In addition, it is necessary to apply a force to the bulb 10 of the fluorescent lamp 1 in the direction opposite to the protruding direction of the terminal pin 11a. Accordingly, when the fluorescent lamp 1 is removed from the two sockets 3 ′ and 3 ′, the bulb 10 cannot withstand the stress applied in the direction opposite to the protruding direction of the terminal pin 11a as shown in FIG. There was concern.

  Further, when the fluorescent lamp 1 is detached from the two sockets 3 ′ and 3 ′, the holding force of the fluorescent lamp 1 is reduced by reducing the elastic force of the support springs 31 ′ and 31 ′ in order to relieve the stress applied to the bulb 10. There was a concern that the fluorescent lamp 1 would fall due to vibrations applied to the lighting fixture.

  This invention is made | formed in view of the said reason, The objective is to provide the lighting fixture which can prevent that a lamp | ramp is damaged by relieving the stress added to a lamp | ramp when removing a lamp | ramp. is there.

  The invention according to claim 1 is a lamp in which a terminal pin protrudes in one direction perpendicular to the longitudinal direction of the bulb from the base provided on each side of both ends of the appliance main body and the longitudinal direction of the straight tube type bulb. Two sockets electrically and mechanically connected, and two socket bases for fixing the two sockets to the instrument body, each socket is made of an insulating material, and terminal pins into which the terminal pins are inserted A socket body provided with an insertion hole, and a conductive block electrically connected to a lighting device for lighting a lamp and housed in the socket body and brought into contact with a terminal pin inserted into the terminal pin insertion hole. The base is provided with an operation part that can be operated when removing the lamp from the socket, and a movable protrusion that pushes the lamp cap away from the socket body when the operation part is operated. It is characterized in.

  According to the present invention, when the operating portion is operated, the movable protrusion pushes the lamp cap away from the socket, so that the lamp bulb is not pulled strongly in the direction opposite to the protruding direction of the terminal pin. Since the lamp can be removed from the two sockets, the stress applied to the bulb when the lamp is removed can be relieved and the lamp can be prevented from being damaged.

  According to a second aspect of the present invention, in the first aspect of the invention, the operation portion is a non-latch type push button, and when the push button is pushed, the movable protrusion pushes the lamp cap away from the socket body. It is characterized by displacement.

  According to this invention, when the lamp is removed from the two sockets, when the push button provided on the socket base is pressed, the movable protrusion can push the base away from the socket. The lamp can be removed from the two sockets more easily.

  According to the first aspect of the present invention, the stress applied to the bulb when removing the lamp can be relaxed, and the lamp can be prevented from being damaged.

(Embodiment 1)
Hereinafter, the lighting fixture of this embodiment is demonstrated based on FIG.

  In the lighting fixture of this embodiment, a fluorescent lamp 1 is used as a lamp. As shown in FIG. 1A, a long box-like fixture body 2 attached to a ceiling or the like, and a longitudinal direction of the fixture body 2 are provided. A pair of sockets 3, 3 provided so as to protrude downward from both ends and to which a straight tube type fluorescent lamp 1 is detachably attached, and housed in the instrument body 2, power is supplied to the fluorescent lamp 1 to light it. A lighting device (for example, an electronic ballast) 4 is provided. In the following description, the vertical direction in FIG.

  Here, the fluorescent lamp 1 has a straight tube type bulb 10 and is provided with bases 11 on the side surfaces of both ends in the longitudinal direction of the bulb 10. , (C), the two terminal pins 11 a and 11 a are projected from one direction orthogonal to the longitudinal direction of the fluorescent lamp 1. On the other hand, the sockets 3 and 3 that are provided apart from each other in the longitudinal direction of the instrument body 2 are hollow rectangular parallelepiped sockets that are opened on the lower surface of terminal pin insertion holes (not shown) into which the terminal pins 11a are inserted from below. A main body 30 is provided. Here, the socket body 30 is formed of an insulating material such as a synthetic resin, for example. Each terminal pin 11 a of the base 11 is formed in a columnar shape, and each terminal pin insertion hole of the socket body 30 is formed in a rectangular shape whose opening shape is long in the longitudinal direction of the instrument body 2. Here, in a state where each terminal pin 11 a is inserted into the terminal pin insertion hole, the base 11 can be slightly moved in the longitudinal direction of the instrument body 2 with respect to the socket body 30.

  Also, the socket body 30 is made of two conductive blocks (not shown) made of a conductive material such as metal and in one-to-one contact conduction with the two terminal pins 11a, 11a inserted from the terminal pin insertion holes. ), And the terminal pins 11a and 11a are respectively inserted into the terminal pin insertion holes so that the fluorescent lamp 1 and the conductive block are electrically connected. Thus, the fluorescent lamp 1 and the socket 3 are electrically and mechanically connected. In addition, since the conductive block housed in the socket body 30 and the lighting device 4 are connected by the conductive wiring 42, the terminal pin 11 a is inserted into the terminal pin insertion hole of the socket body 30, thereby The lamp 1, the socket 3, and the lighting device 4 are electrically connected.

  Further, the socket 3 includes a support spring 31 made of a metal leaf spring that clamps the base 11 from a direction perpendicular to the longitudinal direction of the bulb 10 and perpendicular to the protruding direction of the terminal pin 11a. Here, the support spring 31 is formed in a U-shaped cross-section with the lower part open, and is a rectangular central piece in a top view that is placed on the surface of the socket body 30 opposite to the surface on which the base 11 abuts. (Not shown) and leg pieces 31b and 31b extending downward from two sides facing each other in the direction perpendicular to the longitudinal direction of the instrument body 2 in the central piece.

  Here, the leg pieces 31b and 31b can be elastically deformed in a direction away from each other, and the tip portions of the leg pieces 31b and 31b protrude in a direction closer to each other than the other parts of the leg pieces 31b and 31b. The locking projections 31c and 31c thus formed are formed by bending. On the other hand, on both side surfaces orthogonal to the longitudinal direction of the bulb 10 of the base 11, a locked convex portion 11 b that locks the locking convex portion 31 c is projected, and the terminal pin 11 a is the terminal of the socket body 30. In a state where the pin is completely inserted into the pin insertion hole, the locking projection 31c locks the locked projection 11b. Here, in a state where the locking convex portion 31c locks the locked convex portion 11b, the locked convex portion 11b is positioned above the locking convex portion 31c. Thus, the support springs 31, 31 are elastically sandwiched between the caps 11, 11 of the fluorescent lamp 1 from a direction perpendicular to the longitudinal direction of the fluorescent lamp 1 and perpendicular to the protruding direction of the terminal pin 11a. Since the lamp 1 is mechanically fixed to the two sockets 3 and 3, it is possible to prevent the fluorescent lamp 1 from falling downward.

  Further, the locked convex portions 11b and 11b of the base 11 have inclined surfaces that are inclined so that the central portion in the direction along the protruding direction of the terminal pin 11a of the fluorescent lamp 1 has the largest protruding amount. When the base 11 is removed from the socket 3, the leg pieces 31b and 31b are elastically deformed, and the locking projections 31c and 31c are displaced in directions away from each other along the inclined surface. The state where 31c locks the locked convex portions 11b and 11b is released. Accordingly, the base 11 can be removed from the socket 3 by applying a force to the fluorescent lamp 1 in a direction opposite to the direction in which the terminal pin 11 a protrudes.

  Here, as shown in FIG. 1B, the socket body 30 and the support spring 31 are fixed to a socket base 32 fixed to the instrument body 2, and the fluorescent lamp 1 is attached to the socket base 32 from the socket 3. An operation lever 35a serving as an operation portion to be operated at the time of removal is slidable in a direction perpendicular to the longitudinal direction of the instrument body 2 with respect to the socket base 32 and along the protruding direction of the leg pieces 31b and 31b of the support spring 31. Is retained. In addition, on the surface of the socket base 32 to which the socket body 30 is attached, a movable protrusion 35b that is formed continuously with the operation lever 35a and can move in conjunction with the operation lever 35a is formed on the portion that does not overlap the socket body 30. The tip of the movable protrusion 35b is in contact with the base 11 in a state where the fluorescent lamp 1 is mounted between the sockets 3 and 3. By the way, as shown in FIG. 1C, when the operation lever 35a is pushed downward (in the direction of arrow A1 in FIG. 1C), the movable protrusion 35b moves downward in conjunction with the operation lever 35a, and the movable protrusion 35b is moved. Since the tip portion pushes down the base 11 downward (in the direction of arrow A2 in FIG. 1C), the base 11 is mechanically separated from the socket 3. Here, when each terminal pin 11a, 11a of the base 11 is removed from each terminal pin insertion hole, the base 11 and the socket 3 are electrically separated. Thus, when removing the fluorescent lamp 1, the base 11 can be removed from the socket 3 without strongly pulling the bulb 10 in the direction opposite to the protruding direction of the terminal pin 11a, so that the bulb 10, or the bulb 10 and the base 11 can be removed. It is possible to relieve the stress applied to the joint portion and prevent the valve 10 from being damaged.

(Embodiment 2)
The basic configuration of the lighting fixture of the present embodiment is substantially the same as that of the first embodiment, and only the structure of the socket bases 32 and 32 is different as shown in FIGS. . In addition, about the component similar to Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In the lighting fixture in the present embodiment, as shown in FIG. 2A, on the outer side in the longitudinal direction of the fixture main body 2 with respect to the socket base 32, there is an operating portion that is operated when removing the fluorescent lamp 1 from the socket 3. The non-latch type push button 36a is provided, and the push button 36a is placed in the direction of the inner side of the instrument body 2 (FIG. 2 (a)) at the portion where the socket body 30 of the socket base 32 abuts the socket body 30. , (B) in the direction of arrow B1) is provided with a movable protrusion 36b that can move downward.

  Here, a mechanism in which the movable protrusion 36b moves by pressing the non-latch type push button 36a will be described in detail. FIG. 4A shows a sectional view of the socket base 32 in a state where the push button 36a is not pushed. Inside the socket base 32, a storage portion 32a for storing the push button 36a is formed. Here, the push button 36a provided on the socket base 32 is formed with a protruding portion 361a formed to protrude in a direction orthogonal to the direction along the pressing direction of the push button 36a. On the other hand, guide grooves 321a and 321a for inserting the protrusions 361a and 361a of the push button 36a to guide the protrusions 361a and 361a are inserted in a part of the inner wall of the storage part 32a along the pressing direction of the push button 36a. Is formed. Here, in a state where the push button 36a is not pressed, as shown in FIG. 4A, each protrusion 361a is in contact with one end side in the direction opposite to the pressing direction in the longitudinal direction of the guide groove 321a. When the push button 36a is pressed, the protruding portion 361a moves along the guide groove 321a and contacts the other end side in the longitudinal direction of the guide groove 321a as shown in FIG. 4B. Accordingly, the movable range in the direction along the pressing direction of the push button 36a is restricted. In addition, a part of the push button 36a is inclined so that the part disposed on the back side of the storage part 32a in the push button 36a from the part where the lower protrusion part 361a protrudes is separated from the inner wall of the storage part 32a. A surface 362a is formed. On the other hand, a pulley 361b is provided at the upper end of the movable protrusion 36b, and a part of the pulley 361b is in contact with the inclined surface 362a of the push button 36a.

  Here, when the push button 36a is pressed toward the inside of the socket base 32 (in the direction of the arrow C1 in FIG. 4B), the push button 36a is displaced toward the back of the storage portion 32a and the movable protrusion A pulley 361b provided at the tip of 36b is displaced downward along the inclined surface 362a of the push button 36a. That is, when the push button 36 a is pressed toward the inside of the socket base 32, the movable protrusion 36 b is pushed out below the socket base 32.

  A first recess 321b is formed in the inner wall of the storage portion 32a that faces the tip of the push button 36a in the pressing direction of the push button 36a. The push button 36a is provided with a holding projection 363a that protrudes from the tip portion in the pressing direction of the push button 36a and holds a spring (coil spring) 33a. The push button 36a is pressed. In a state where it is not, a part of the tip of the holding projection 363a is inserted into the first recess 321b. Here, when the push button 36a is pressed, the holding projection 363a is inserted further into the first recess 321b. In addition, the spring 33a externally mounted on the holding projection 363a of the push button 36a is disposed so as to be sandwiched between the distal end portion of the push button 36a and the inner wall of the storage portion 32a facing the distal end portion of the push button 36a. Is done. In addition, a second recess 321c is formed in a part of the lower inner wall of the storage portion 32a, and a through hole 321d through which the movable protrusion 36b is inserted penetrates the bottom of the second recess 321c. Has been. The movable protrusion 36b is covered with a spring (coil spring) 33b, and the spring 33b is sandwiched between a flange 362b provided at the distal end of the movable protrusion 36b and the bottom of the second recess 321c. It is arranged in the form. Therefore, when the push button 36a is pressed, the push button 36a is pushed against the spring force of the spring 33a. On the other hand, when the push button 36a is stopped from being pushed in, the push button 36a and the movable protrusion 36b are returned to the original positions shown in FIG. 4A by the spring force of the springs 33a and 33b.

  By the way, as shown in FIG. 3B, when the push button 36a is pushed inward of the socket base 32 (in the direction of arrow C1 in FIG. 3B), the movable protrusion 36b is located below the socket base 32. When the movable projection 36b moves downward (in the direction of arrow C2 in FIG. 3B) and pushes the base 11 away from the socket body 30 (in the direction of arrow C3 in FIG. 3B), the base 11 moves to the socket 3. Mechanically separated from Here, since the terminal pins 11a, 11a of the base 11 are removed from the terminal pin insertion holes, the base 11 and the socket 3 are electrically separated. Thus, when removing the fluorescent lamp 1, the base 11 can be removed from the socket 3 without strongly pulling the bulb 10 in the direction opposite to the protruding direction of the terminal pin 11a, so that the bulb 10, or the bulb 10 and the base 11 can be removed. It is possible to relieve the stress applied to the joint portion and prevent the valve 10 from being damaged.

  By the way, when the operation unit is a latch-type push button (not shown), when attaching the fluorescent lamp 1 to the two sockets 3 and 3, an operation for releasing the latch is necessary, or a movable protrusion Extra force is required to push up 36b. On the other hand, since the push button 36a of the present embodiment is a non-latching type as described above, when the fluorescent lamp 1 is attached to the two sockets 3 and 3, an operation for releasing the latch or a movable operation is possible. There is an effect that no extra force is required to push up the protrusion 36b.

1 shows a lighting apparatus of Embodiment 1, wherein (a) is a partially cutaway side view, (b) is a side view of a main part with a fluorescent lamp attached, and (c) is a main part with a fluorescent lamp removed. FIG. The lighting fixture of Embodiment 2 is shown, (a) is a side view of the state in which the fluorescent lamp was attached, (b) is a side view of the state in which the fluorescent lamp was removed. The principal part same as the above is shown, (a) is a side view with the fluorescent lamp attached, and (b) is a side view with the fluorescent lamp removed. The principal part same as the above is shown, (a) is a cross-sectional view when the push button is not pressed, (b) is a cross-sectional view when the push button is pressed. It is the partially broken side view of the lighting fixture of a prior art example. The principal part same as the above is shown, (a) is sectional drawing seen from the longitudinal direction of the fluorescent lamp, (b) is a side view. It is a principal part side view same as the above. It is the partially broken side view of the lighting fixture same as the above.

Explanation of symbols

1 Fluorescent lamp (lamp)
2 Appliance body 3 Socket 4 Lighting device 10 Valve 11 Base 11a Terminal pin 30 Socket body 31 Support spring 32 Socket base 35a Operation lever (operation part)
35b Movable protrusion 36a Operation button (operation part)
36b Movable protrusion

Claims (2)

  Electrically and mechanically connected between the fixture body and the lamp with terminal pins protruding in one direction perpendicular to the longitudinal direction of the bulb from the caps provided on the side surfaces of both ends in the longitudinal direction of the straight tube type bulb Sockets, and two socket bases for fixing the two sockets to the instrument body, each socket being made of an insulating material and provided with terminal pin insertion holes into which terminal pins are inserted. A main body and a conductive block that is electrically connected to a lighting device that lights the lamp, is housed in the socket main body, and is in contact with the terminal pin inserted into the terminal pin insertion hole; And a movable projection that pushes the lamp cap away from the socket body when the operation unit is operated. Lighting fixtures. 2. The illumination according to claim 1, wherein the operation portion is a non-latch type push button, and when the push button is pushed, the movable protrusion is displaced so as to push the base away from the socket body. Instruments.

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