JPS6318282B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to lighting equipment, for example, a socket for a straight tube lamp such as an indicator light, and equipment components constituting a lighting circuit. Regarding the insulation configuration of.

(Prior Art) Conventional lighting equipment of this kind, for example, an indicator light, has a straight tube fluorescent lamp 2 arranged in the center of a main body 1, as shown in FIG. The formed cover 3 is attached, and a transparent plate 4 for floor illumination is attached to the center of the bottom of the main body 1, and a lighting unit 5 and a storage battery 6 are installed inside the main body 1, located on the left and right sides of the transparent plate 4. Furthermore, a pair of sockets 7 and 8 are arranged facing each other at both ends of the main body 1, and a ballast 9 and an inspection switch 10 are arranged adjacent to the lighting unit 5, and a cover 3 is provided. The frame 11 is configured to be locked to the main body 1 using a locking tool 12 formed of a leaf spring.

In this conventional lighting fixture with the structure shown in Fig. 1,
In order to prevent electrical shock accidents when replacing lamps, it is necessary to insulate each component of the lighting circuit, such as the ballast 9, individually, and several insulating covers are required just for insulation, which reduces the number of parts. This increases the number of parts required, making it uneconomical and requiring the individual parts to be attached during assembly, resulting in a problem of high assembly man-hours and poor assembly performance. Furthermore, in this conventional configuration, the wiring of the lamp sockets 7, 8, ballast 9, switch 10, etc. is complicated, the wiring work is complicated, and many restraints for the lead wires are required.

Furthermore, a lighting fixture in which a socket is incorporated into a unit case has been proposed, for example, as described in Japanese Patent Application Laid-Open No. 54-70669.

(Problems to be Solved by the Invention) In the lighting equipment described in the above-mentioned Japanese Patent Application Laid-open No. 54-70669, the socket must be assembled separately from the unit case, and then the socket must be assembled into the unit case. The number of pieces is large, and conventional lighting equipment requires special parts to attach the cover 3. For example, in the lighting equipment shown in FIG.
2 must be attached to the edge frame 11 by welding or riveting, which poses the problem of requiring special machinery.

The present invention was made in view of the above problems, and it is necessary to form a socket integrally with a unit case in which the component parts of the lighting circuit for lighting the lamp are insulated, and to use an insulating cover for each component part individually. The object of the present invention is to provide a lighting fixture that improves assemblability, facilitates wiring, improves wiring workability, and can be obtained at low cost.

[Structure of the invention]

(Means for Solving the Problems) A lighting fixture of the present invention includes a fixture body having an opening formed on at least one surface, a cover attached to the opening of the fixture body, and a cover disposed facing inside the body. At least one of the pair of sockets has a terminal pin insertion hole for the lamp on the surface of the unit case that houses the component parts of the lighting circuit that lights the lamps attached to the pair of sockets. A substantially U-shaped cut groove is provided around the terminal pin insertion hole, and a movable plate formed by the cut groove is disposed in the unit case so as to face the inner surface of the movable plate. A cover mounting device is integrally formed with the unit case, and includes a contact piece that contacts a terminal pin of a lamp inserted through a terminal pin insertion hole.

(Function) In the lighting device of the present invention, the circuit components of the lighting circuit, such as the ballast and the lighting tube socket, and the contact piece of the socket are incorporated into the unit case. Then, this unit case is fixed to one end of the inner surface of the main body. After the lamp is attached to the socket, the cover is fitted into the opening of the main body, and the cover is attached to the main body by the cover attachment device protruding from the opening.

(Embodiment) Next, the configuration of an embodiment of the present invention will be described with reference to FIGS. 2 to 5 of the drawings.

Reference numeral 20 denotes the main body of the instrument, which is formed in the shape of a substantially rectangular box with openings on both sides.
1 is formed protrudingly. An opening for floor illumination is formed in the center of the bottom surface of the main body 20, and a transparent plate 22 is attached to this opening.

Next, a cover 23 is formed of a display board, and the cover 23 has a guiding display 24 formed of a light-transmitting portion. A frame 2 is attached to the periphery of this cover 23.
5 is fixed, and this edge frame 25 is adapted to be fitted to the projecting edge 21 of the main body 20. Also, on both sides of this edge frame 25, there are engaging recesses 2 that are open on the inner side.
6 is bulged.

Next, 27 is a unit case, which is made of synthetic resin and shaped like a box, and has an opening on the back side. At the rear of both sides of the unit case 27, there are a plurality of mounting legs 2 for fixing the unit case 27 to the main body 20.
8 are integrally formed, and each mounting leg portion 28 has a mounting elongated hole 29 formed therein. Further, a cover attachment device section 30 is integrally provided at the rear of both sides of the unit case 27, and the tip of this cover attachment device section 30 engages with an engagement recess 26 formed in the edge frame 25 of the cover 23. A hook portion 31 is formed to protrude rearward, and this hook portion 31 is adapted to protrude from an opening 32 formed in the projecting edge 21 of the main body 20.

Also, this unit case 27 includes a ballast 33,
Light tube socket, inspection switch 34, connector 3
5 and the unit circuit board 36 are housed and fixed,
A mounting hole 38 into which the lighting tube 37 is inserted is formed on one side of the lower surface of the unit case 27, facing the lighting tube socket, and the connector 3 is inserted on the other side of the lower part.
An insertion hole 40 for a connector portion of a storage battery 39 to be connected to the storage battery 5 is formed. Furthermore, on one side of the lower part of this unit case 27, there is an optical guide 41 that guides the light of the light emitting diode incorporated in the lighting circuit to the outside.
A holding portion 42 is integrally formed.

Further, the unit circuit board 36 forms an emergency lighting circuit which is turned on by the commercial power supply during normal times, and which is turned on by the storage battery 39 in an emergency when the commercial power supply is cut off due to a power outage or the like.

Further, the front surface of the unit case 27 has an inclined surface 4.
3, the lower part is projected forward, and this inclined surface 4
A parallel long lamp terminal pin insertion guide groove 45 is formed extending from 3 to the lower part, and a terminal pin insertion hole 46 penetrating into the unit case 27 is formed at the lower end of this terminal pin insertion guide groove 45. There is.
Further, a substantially inverted U-shaped cut groove 47 is formed on the front surface of the unit case 27, surrounding the terminal pin insertion hole 46 and extending from the inclined surface 43 to the lower part. Movable plate 49
This movable plate 49 forms the cut groove 47.
It is designed to be movable by the elasticity between the lower ends of both ends. Further, a terminal block portion 50 is integrally formed on the inner surface of the movable plate 49.
0, contact piece arrangement grooves 51 are formed in parallel in the vertical direction, and fixing grooves 54 for locking the terminal piece portions 53 of the contact holes 52 are formed orthogonally to each of the contact piece arrangement grooves 51. There is. The contact hole 52 is formed of a spring piece, and a terminal piece 53 that engages with the fixing groove 54 is bent at the lower end, and the contact piece 52 inserts and locks the terminal piece 53 into the fixing groove 54. In this state, the contact piece portion 55 is inserted into the terminal pin insertion hole 4 of the movable plate 49.
The inner end side of 6 is opposed to the inner end side of 6.

The ballast 33, lighting tube socket, unit circuit board 36, etc. are press-fitted and held using the elasticity of the unit case 27.

Then, the unit case 27 is attached to the inner surface of one end of the main body 20. A set screw inserted into the long mounting hole 29 of the mounting leg 28 is screwed onto the main body 20 and tightened, or a locking piece cut out from the main body 20 is inserted and locked. It sticks by doing this.

The storage battery 39 is held at the inner bottom of the main body 20 by butt-connecting the connector provided on the battery case to the connector portion 35 of the unit case 27.

Reference numeral 56 denotes a lamp socket, which is fixed inside the other end of the main body 20 opposite to the lamp socket 48 formed in the unit case 27, and on both sides of the socket 56, the engagement recess 2 of the frame edge 25 is provided at the tip.
A cover attachment device portion 57 having a hook portion that is engaged with the cover attachment device 6 is integrally formed.

Next, a method of assembling this embodiment will be explained.

The contact piece 5 is attached to the terminal block portion 50 of the unit case 27.
After installing 2, ballast 33, lighting tube socket,
The inspection switch 34, connector 35, unit circuit board 36, optical guide 41, etc. are assembled into the unit case 27. The mounting portion 28 of the unit case 27 is fixed to one end of the inner surface of the main body 20 using a mounting screw or a locking piece cut and raised from the main body 20. Next, connect the connector provided on the case of the storage battery 39 to the connector 35 of the unit case 27.
The main body 20 is placed and held at the inner bottom of the main body 20. There is also a socket 56 on the other end of the inner surface of the main body 20.
to fix. Then, the edge frame 25 of the cover 23 is fitted into the projecting edge 21 of the main body 20, and the edge frame 25 of the hook portion 31 is engaged by the elasticity of the cover attachment device section 30 protruding from the opening 32 of the projecting edge 21. The covers 23 are attached to both sides of the main body 20 by engaging the mating recesses 26. Before attaching the cover 23, first connect the socket 48 of the unit case 27 and the other socket 56.
Terminal pins at both ends of the straight tube type fluorescent lamp 44 are attached to the ends. When installing this lamp 44, insert the other terminal pin of the lamp 44 into the terminal pin insertion hole of the other socket 56, and then slide one terminal pin downward along the upper end side of the terminal pin insertion guide groove 45. Then, since the terminal pin insertion guide groove 45 extends downward from the inclined surface 43 of the unit case 27, the terminal pin is inserted into the terminal pin insertion guide groove 4.
While sliding the movable plate 49 and deforming it, the terminal pin is inserted into the terminal pin insertion hole 46 at the lower end of the terminal pin insertion guide groove 45, and the terminal pin is inserted into the contact piece portion 55 of the contact piece 52. Upon contact, the movable plate 499 is returned to its original position to maintain the state in which the terminal pin is inserted into the terminal pin insertion hole 46, and the movable plate 49 effectively absorbs errors in the mounting pitch of the lamp socket.

Further, the cut groove 47 forming the movable plate 49 of the socket 48 in the unit case 27 may be formed as a groove penetrating the inner and outer surfaces as shown in FIG. 6, or as shown in FIGS. 7 to 9. As shown, a reinforcing edge 58 may be formed at the edge of the cut groove 47 of the unit case 27, and a press cut groove may be formed at the joint of the mold. Further, the kerf 47 may have a substantially inverted U-shape as shown in FIG. 10, or may have an angular shape as shown in FIG. It is also possible to form a cylindrical protrusion 59 and form the terminal pin insertion hole 46 in this protrusion 59. Furthermore, as shown in FIG.
It is also possible to form an arc-shaped bulge 60 at the upper part of 9, form a terminal pin insertion guide groove 45 in this bulge 60, and form a terminal pin insertion hole 46 in the middle part of this terminal pin insertion guide groove 45. can.

Furthermore, in the above embodiment, an indicator light such as a guide light was explained, which is turned on by a commercial power supply in normal times and turned on by a storage battery charged by a normal commercial power supply in an emergency such as a power outage. It can also be applied to lighting equipment, where a translucent cover is used as the cover.

Further, in the embodiment described above, the ballast 33, the circuit board 36, etc. are housed in the unit case 27, but it is not necessary to house them all, and some of them may be provided outside the unit case 27.

〔Effect of the invention〕

According to the present invention, equipment components such as a ballast and wiring circuit board that make up the lighting circuit are housed in the unit case, and the wiring between each equipment component and between sockets is greatly reduced, and the wiring is routed within the main unit. The only wiring required is the wire connected to the other socket and the wire connected to the commercial power supply, which reduces the need to secure wires and eliminates the need for insulating covers for each device component.
Furthermore, there is no need for a separate lamp socket.
By providing the unit case with a cut groove that forms the movable plate of the socket, it is possible to effectively absorb errors in the socket mounting pitch that occur when molding the unit case, and it is also possible to easily attach and remove the lamp. Simply provide a contact piece that contacts the terminal pin of the lamp,
The socket is easy to assemble, the mold for the unit case does not need to be complicated and can be a flat, split mold, and a durable mass-produced mold can be obtained at low cost, with improved moldability and ease of assembly. is improved.

Further, by integrally forming the cover attachment device part in the unit case, the number of material parts for attaching the cover can be reduced and ease of assembly can be improved.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a conventional lighting fixture, Fig. 2 is an exploded perspective view of a lighting fixture showing an embodiment of the present invention, Fig. 3 is a perspective view of the same unit case, and Fig. 4 is an exploded perspective view of a conventional lighting fixture.
The figure is an exploded rear view of the socket part of the above unit case, Figure 5 is an exploded perspective view with a part of the cover attachment part cut away, and Figures 6 to 9 are the socket part of the unit case showing different embodiments. , and FIGS. 10 to 13 are perspective views of the socket portion of the unit case showing different embodiments, respectively. 20... Instrument body, 23... Cover, 27...
Unit case, 30... Cover mounting device section, 3
3... Ballast as lighting circuit component component, 3
6...Circuit board as a lighting circuit component component,
44...Lamp, 46...Terminal pin insertion hole, 47
...kerf, 48, 56...socket, 49...movable plate.

Claims (1)

[Scope of Claims] 1. Consisting of an instrument main body having an opening formed on at least one surface, a cover attached to the opening of the instrument main body, and a pair of sockets disposed facing each other within the main body, At least one of the pair of sockets is provided with a terminal pin insertion hole for the lamp in the surface of the unit case that houses the component parts of the lighting circuit that lights the lamps attached to the pair of sockets. a movable plate formed by a substantially U-shaped cut groove around the periphery of the terminal pin, and a movable plate formed by the cut groove; 1. A lighting device comprising a contact piece for contacting a terminal pin of a lamp, and a cover mounting device portion is integrally formed with the unit case.