JPS6321861Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to lighting equipment, and more particularly to a holding structure for a wiring cord of a lighting circuit.

(Prior art) Conventional lighting equipment of this type, for example, indicator lights, has lamp sockets for mounting straight tube fluorescent lamps mounted opposite to each other at both ends of the equipment body, and further includes a ballast, a lighting switch, and a light switch inside the main body. The structure is such that a lighting circuit unit is installed that is powered by commercial power and turned on by a storage battery in the event of a power outage.When connecting these sockets, ballasts, lighting switches, circuit units, and storage batteries with cords,
The cord must be held inside the main body with a clamp so that it does not appear as a shadow on the outside.

As a lighting fixture in which this cord is held down by a holding metal fitting, structures described in, for example, Japanese Unexamined Utility Model Publication No. 55-85712 and Japanese Utility Model Application No. 56-70909 are known. The device described in this Japanese Utility Model Publication No. 55-85712 has a structure in which a cord presser is integrally formed on a separate socket mounting base of the socket.
The device described in Publication No. 70909 has a protruding part on a socket mounting base that is separate from the socket, and the cord is held between the protruding part and the lamp socket, so that when tension is applied to the cord, the cord is separated from the terminal part. death,
The structure is designed to prevent wire breakage accidents.

Furthermore, as described in Japanese Utility Model Publication No. 42-9980, there is a known lighting device in which a lamp socket is formed integrally with the main body of the device, and a ballast, etc. built into the main body of the device is connected with a long thin plate-shaped conductor piece. It is being

(Problems to be solved by the invention) However, in the structures described in the above-mentioned Japanese Utility Model Application Publication No. 55-85712 and Japanese Utility Model Application Publication No. 56-70909,
Because the cord hooking part is formed on the socket mounting base, which is separate from the socket, the cord is hooked and hooked after being assembled as a device, so the tension generated during the assembly process of the device is absorbed by the cord connections and terminals. In addition, since the cord is tightened and pinched by metal, there is a risk of a short circuit if the insulation coating of the cord is damaged. Measures must be taken to prevent damage to the cord, which increases processing and assembly man-hours. In addition, sufficient reliability is required in terms of cord coating thickness, heat deterioration resistance, etc., resulting in an increase in costs.

In addition, in the structure described in Utility Model Publication No. 42-9980,
Because the fixture body and lamp socket are integrated,
There is a problem that it lacks versatility and cannot be applied to various types of lighting equipment that are manufactured in small quantities in a wide variety of products.In addition, it requires a process to attach the conductor pieces that connect the ballast etc. with screws and a means for insulating, resulting in high structural costs. There are some problems.

The present invention was developed in view of the above-mentioned problems, and allows the cord to be hung on a unit case that is integrally formed with a socket, making it easier to hold the cord and reducing the tension applied to the cord at the connection point of the cord. By keeping the cord from hanging on the cord to prevent breakage and other defects, and by hanging the cord at the hook part of the synthetic resin case, it is difficult to cause damage, and even if the cord is damaged, it will not cause a short circuit accident. The object of the present invention is to provide a lighting fixture that is difficult to use, can be applied to various types of fixtures, and is suitable for high-variety, low-volume production.

[Structure of the idea]

(Means for Solving the Problems) The lighting device of the present invention has a main body and a socket mounted oppositely within the main body, which are integrally formed, and a ballast is built into at least one side. It consists of a pair of unit cases molded from resin, and a hook for a wiring cord is integrally formed at the end of each unit case.

(Function) The lighting device of the present invention has a unit case mounted opposite to both ends of the device body, and a hook portion of a wiring cord formed at the end of the unit case is hooked to the unit case.
This is to attach the socket lamp of the opposing unit case.

(Embodiment) Next, the configuration of an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

In FIG. 1, reference numeral 20 denotes an instrument main body, and projecting edges 21 are formed on the opening edges of both sides. Further, an opening for floor illumination is formed in the center of the bottom surface of the main body 20, and a light-transmitting 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 one unit case, which is formed into a box shape from synthetic resin and has an opening on the back side.
A plurality of mounting legs 28 for fixing the unit case 27 to the main body 20 are integrally formed on both rear sides of the unit case 27.
Elastic support arms 30 are integrally provided on both sides of the cover 23 and have locking portions 29 that engage with engagement recesses 26 formed in the edge frame 25 of the cover 23.

In addition, a ballast 33, a lighting tube socket 34, an inspection switch, a connector 35, and a unit circuit board are housed and fixed in one of the unit cases 27, and the unit circuit board lights the lamp using a normal commercial power source. An emergency lighting circuit is formed that uses a storage battery 39 to turn on the lights in case of commercial power interruption such as a power outage.

Further, the lower part of the front surface of the one unit case 27 protrudes forward through an inclined surface 43, and a terminal pin insertion guide groove 45 for a parallel long-hole lamp 44 is formed from the inclined surface 43 to the lower part. A terminal pin insertion hole 46 penetrating into the unit case 27 is formed at the lower end of the terminal pin insertion guide groove 45. Further, on the front surface of this unit case 27, there is an inclined surface 4 surrounding the terminal pin insertion hole 46.
A substantially U-shaped cut groove 47 is formed extending from the cut groove 3 to the lower end, and this cut groove 47 forms a movable plate 49 of the lamp socket 48 . It is designed to be movable due to its elasticity. A contact piece (not shown) that comes into contact with a terminal pin inserted through the terminal pin insertion hole 46 is provided on the inner surface of the movable plate 49.

Further, at the upper end of the one unit case 27, as shown in FIG. A hook-shaped hook portion 5 is formed at the tip of the hook portion 51.
2 is formed, and an input wiring cord 54 connected to the stabilizer 33 is inserted through the hook part 51 and connected to the hook part 5.
2 prevents it from coming off.

Further, as shown in FIG. 3, a cord outlet 56 is formed in the upper side plate 55 of the one unit case 27 and is located on the outside of the opening end of the outlet 56. A second hook portion 57 is formed integrally projecting from the leg portion 28, and the input wiring cord 58 is held by the second hook portion 57 so as not to come off.

Furthermore, as shown in FIG. 4, the cord pull-out plate 59 of one of the unit cases 27 is provided with a third hooking portion 61 that forms a roughly L-shaped cord pull-out groove 60 that is open on the back surface, and is connected to the output wiring. The cord 62 is press-fitted into the cord pull-out groove 60, pulled out, and hooked onto the third hook 61. This cord pull-out groove 60 is formed narrower on the inner end side. Note that there is a flat cord pull-out groove 60 in the output wiring cord 62.
It is press-fitted into the holder, pulled out, and latched to a third latching portion 61. In addition, the output wiring code 62
By using a flat cord and by forming the open end of the cord pull-out groove 60 narrowly, the cord can be held securely.

Next, reference numeral 63 shown in FIG. 5 is the other unit case, which is formed of synthetic resin into a box shape and has an opening on the back side. A plurality of mounting leg pieces 64 for fixing this unit case 63 to the main body 20 are integrally formed on both rear sides of the other unit case 63, and further, on both sides of this case 27, a plurality of mounting leg pieces 64 are formed on the edge frame 25 of the cover 23. An elastic support arm 66 is integrally provided with a locking portion 65 that engages with the engagement recess 26.

A terminal pin insertion hole 67 is formed in the front surface of the other unit case 63, and a substantially inverted U-shaped cut groove 68 is formed in the front surface surrounding the insertion hole 67. A movable plate 70 of the lamp socket 69 is formed, and this movable plate 70 is adapted to be moved by the elasticity between the lower portions of both ends of the kerf 68. A contact piece 72 that comes into contact with the terminal pin of the lamp 44 inserted through the terminal pin insertion hole 67 is provided on the inner surface of the movable plate 70 .

Next, a cord outlet 74 is formed in the lower end surface 73 of the other unit case 63, and columnar cord presser protrusions 75, 76 are integrally projected from both sides of the cord outlet 74 on the inner surface of this socket case 63. A fourth cord retaining portion 77 is formed at the tip of one cord retaining protrusion 75 and maintains a small gap between it and the other cord retaining protrusion 76.
The surface of the other cord presser protrusion 76 facing the one cord presser protrusion 75 is projected to have a substantially V-shaped cross section.

The cord 62 pulled out from the cord pull-out groove 60 of the one unit case 27 is introduced into the other unit case 63 from the cord pull-out port 74, is press-fitted between the cord holding protrusions 75 and 76, and is inserted into the fourth cord hook. It is adapted to be held by being hooked to a stop portion 77.

Next, the operation of this embodiment will be explained.

In one unit case 27, the cord 58 connected to the lighting tube socket 34, inspection switch, connector 35, and unit circuit board is pulled out from the cord outlet 56 and pushed using the elastic deformation of the second hook 57. When inserted, the cord 58 is attached to the second hook 5
It is hung on 7.

Next, the cord 54 connected to the stabilizer 33 or the like is hooked to the first hook portion 51 and held by the hook portion 52 to prevent it from coming off.

In addition, the cord 62 connected to one unit case 27 is press-fitted into the pull-out groove 60, pulled out, and hooked to the third hooking part 61, and the cord 62 is pulled out from the cord pull-out port 74 of the other unit case 69. It is inserted and press-fitted between the cord holding protrusions 75 and 76, and is latched to the fourth cord latching portion 77 to prevent it from coming off.

In this way, each component of the lighting circuit is mounted inside the unit case 27 and the wiring is connected without being exposed outside the case 27, and the input side wiring cords 54 and 58 are connected to the first and second cord hooks. Part 5
1 and 57, and the output side wiring cord 62 can be held by the third cord hooking part 61.

Cord 6 connected to the other unit case 63
2 is inserted from the cord outlet 74 and is hooked to the fourth hook 77, and in this state, the socket case 63
When fixed to the end face of the main body 20, the cord outlet 7
4 is also closed at its open end, and the cord 62 is securely held.

Further, the unit case 27 is fixed to the end face of the main body 20. Next, put the storage battery 39 into the unit case 27.
Connect the connector to.

Then, a lamp 44 is installed in the socket 48 of the unit case 27 and the socket 69 of the socket case 63.
Attach the terminal pin.

Next, the cover 23 is attached to the main body 20.

[Effect of idea]

According to the present invention, since the cord can be hooked to the synthetic resin unit case in which the socket is integrally formed, the socket of the unit case and the electrical parts assembled in the unit case can be assembled into a subassembly. The cord can be easily held, and when assembling the appliance, the cord is latched onto the unit case, so that the tension on the cord is not applied to the cord connection, thereby preventing defects such as disconnection. In addition, by hanging the cord at the hooking part of the synthetic resin case, it is easy to take measures against damage to the cord, such as the thickness of the cord coating and heat deterioration resistance, and even if the cord is damaged, there will be no short circuit. Accidents are less likely to occur, and by attaching paired unit cases to the main body of various instruments, it is possible to produce a wide variety of products in small quantities.The cord hook can be molded as one piece at the same time as the case, and the mold cost is low. Assembling workability can also be improved.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a lighting fixture showing an embodiment of the present invention, Fig. 2 is a front view of one unit case of the above, and Fig. 3 is a perspective view of the first and second cord hooking parts of the above. , FIG. 4 is a perspective view of the third cord hooking part of the above, FIG. 5 is a perspective view of the other unit case of the same, and FIG. 6 is a perspective view of the fourth cord hooking part of the same. 20... Instrument body, 27, 63... Unit case, 48, 69... Socket, 51, 57, 61,
77...Cord hanging part.

Claims (1)

[Scope of Claim for Utility Model Registration] A device body and a pair of units molded from synthetic resin that are mounted opposite to each other in the device body, integrally forming a socket, and having a stabilizer built into at least one of them. A lighting device comprising a case, and a hook for a wiring cord is integrally formed at the end of each unit case.