JPH0343721B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a socket mounting device for a lighting equipment,
The present invention relates to a mounting device in which a lamp socket for mounting a straight tube lamp is mounted to both ends of a device main body by engagement between mounting pieces and mounting grooves.

[Technical background of the invention and its problems]

Conventional lighting fixtures of this type have mounting pieces protruding horizontally from both ends of the opening of the fixture body, and these mounting pieces engage mounting grooves formed on both sides of the lamp socket to remove the lamp socket. It has a similar structure. However, in this structure, the mounting piece must be made of a hard and thick material such as a steel plate so that the mounting piece will not be deformed when the lamp socket is pressed outward when the lamp is attached to the lamp socket. However, it had the disadvantage of high cost.

However, in order to reduce the cost of products, there is a need to make the material of the appliance body thinner, and when the appliance body is made thinner, the mounting piece of the lamp socket that is integrally formed from the appliance body also becomes thinner.
When the lamp socket is pressed when the lamp is attached, the mounting piece deforms, the lamp socket inclines outward, and the distance between the pair of lamp sockets increases, causing the lamp to fall off.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned drawbacks, and it increases the strength of the mounting piece of the lamp socket integrally formed in the appliance body, enables the material of the appliance body to be made thinner, and improves the ease of mounting the lamp socket. The present invention provides a lamp socket mounting device for a lighting fixture with improved safety.

[Summary of the invention]

The structure of the present invention is such that the mounting pieces that engage the mounting grooves formed on both sides of the lamp socket are formed of folded and overlapped pieces to increase the thickness of the mounting pieces and increase the strength. It is formed into a substantially U-shaped cross section with an open front surface and has an end plate at the front, and is mounted horizontally on both sides of the opening of the main body using bent overlapping pieces bent from both side opening edges of the main body or end plates. A pair of lamp sockets are mounted oppositely to each other at both ends of the main body by engaging the mounting pieces on both sides with mounting grooves formed on both sides of the base of the lamp socket.

Further, in a second aspect of the invention, a locking step is formed by cutting out an outer end of a mounting piece of a lamp socket formed of bent and overlapping pieces, and the mounting grooves that engage with the mounting pieces on both sides of the lamp socket are provided with a locking step. A stopper portion that is locked to the locking step portion is provided in a protruding manner, and the mounting groove of the lamp socket is engaged with the mounting piece, so that the stopper portion is locked to the locking step portion.

[Embodiments of the invention]

Next, the configuration of an embodiment of the present invention will be explained with reference to FIGS. 1 to 5.

Reference numeral 1 denotes a device main body, which is formed in the shape of an elongated box with a substantially U-shaped cross section and an open front, and end plates 2 are provided at both ends. As shown in FIG. 5, this end plate 2 is bent at a substantially right angle from both sides of the end face 3 toward the inside, and a joining edge 5 is formed which overlaps the inside of the end of the both side plate parts 4 of the main body 1. There is.

Further, a socket mounting plate 6 is formed on the front edge of the end plate 2 and is bent inward at a substantially right angle, and this socket mounting plate 6 is arranged on both sides of the opening of the main body 1. It's summery. This socket mounting plate 6 has a substantially U-shaped notch 7 that is open inward.
are formed, and mounting pieces 9, 9 are formed horizontally on both sides by overlapping pieces having inner pieces 8 bent inwardly on both sides. Also, both mounting pieces 9,
The outer end side of the inner piece 8 of 9 is a notch with a locking stepped portion 10.
is formed. Furthermore, a socket receiving and holding piece 11 is formed between the outer ends of the two mounting pieces 9, 9. Further, on both sides of the socket mounting plate 6, there are formed joint pieces 12 which are overlapped with the inner sides of the side plate parts 4 of the main body 1.
A locking pawl 14 is cut and raised to be locked in a square locking hole 13 formed in the square hole. Note that bending beads 15 for reinforcement are formed on the bent edges of the joint pieces 12 on both sides of the socket mounting plate 6. Furthermore, a fixing piece 16 is formed on the rear edge of the end surface 3 of the end plate 2 and is bent inward at a substantially right angle. A locking hole 19 that engages with the hole 18 is formed.

Next, reference numeral 20 denotes a pair of lamp sockets, and on both sides of the base of this socket 20 there are mounting pieces 9 of the main body 1.
A mounting groove 21 that engages with the socket is formed on the back surface of the base, and an engagement step 22 that engages with the socket receiving and holding piece 11 of the main body 1 is formed. A stopper portion 23 is provided protruding from the outer end of the mounting groove 21 of the lamp socket 20. The inner end of this stopper portion 23 is connected to the locking step portion 10 of the mounting piece 9.
The outer end side is formed as a vertical engagement guide edge that is engaged with the vertical engagement edge.

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

The end plates 2 are fitted into the openings at both ends of the instrument body 1, the locking holes 19 of the fixed piece 16 are locked, and the locking claws 14 of the joint piece 12 are inserted into the locking holes 13 of the side plate 4. The end plate 2 is fixed by bending.

Next, when the mounting groove 21 of the lamp socket 20 is slid into engagement with the mounting piece 9 of the main body 1, the engagement stepped portion 22 on the back side of the lamp socket 20 is engaged with the socket receiving and holding piece 11 of the main body 1. At this time, the dimension (l ₁ ) between the socket receiving holding piece 11 and the locking step 10 and the engagement of the lamp socket 20 are adjusted such that the vertical locking edge of the stopper portion 23 is locked with the locking step 10. By setting the dimension (l ₂ ) between the stepped portion 22 and the stopper portion 23, the stopper portion 23
is locked to the locking step 10, and the lamp socket 20
is fixed.

Next, this effect will be explained.

When attaching the straight tube fluorescent lamp 25, one terminal pin of the lamp 25 is attached to one lamp socket 20, and the other terminal pin is attached to the other lamp socket 20 while pressing the lamp 25 to one side. At this time, even if the lamp socket 20 is pressed outward, since the mounting piece 9 is formed of an overlapping piece, it will not be deformed and the distance between the pair of lamp sockets 20, 20 will be maintained at a predetermined interval, and the lamp 25 will be It is securely attached to the pair of lamp sockets 20, 20.

Note that the locking step portion 10 formed on the mounting piece 9 is not limited to a notch, but may be formed in the shape of a hole.

Next, another embodiment will be described with reference to FIG.

An overlapping piece 26 is formed on both sides of the front opening of the appliance main body 1 by being horizontally bent integrally from the side plate part 4 and further folded back inward, and an insertion section into which the lamp socket 20 can be inserted near both ends of this overlapping piece 26 is formed. Part 27
A notch is formed in the overlapping piece 26, and the outer end side from the insertion portion 27 of the overlapping piece 26 is used as a mounting piece 28.

Further, from the front edge of the end plate 2, a socket receiving and holding piece 11 is formed inwardly at a substantially right angle. The rest of the structure is the same as the structure of the previous embodiment, so the same reference numerals are given and the explanation will be omitted.

In the structure of this embodiment, the base of the lamp socket 20 is inserted through the lamp socket insertion portion 27 of the overlapping piece 26 of the main body 1, and the mounting groove 21 is engaged and slid into the mounting piece 28, thereby attaching the lamp socket 20 as in the previous embodiment. It can be fixed to both ends of the main body 1.

〔Effect of the invention〕

According to the present invention, since the mounting piece that engages the mounting groove of the lamp socket is formed of a folded and overlapped piece, the mounting piece is assisted and when the lamp is installed, a force is applied to the lamp socket in a direction that widens the distance between the pair of lamp sockets. The mounting piece will not be deformed even if the lamp sockets act on it, there is no risk of the lamp falling off due to the distance between the lamp sockets increasing, and the lamp can be installed securely even if the lamp body is made of thin steel plate. The mounting piece can be made thinner, resulting in an overall cost reduction.Furthermore, since the mounting piece is a folded and overlapping piece, the corners have arcuate surfaces, making it possible to smoothly engage and slide the mounting groove of the lamp socket. Safety is improved as there are no burrs caused by cutting, and since the polymerized pieces of this mounting piece are conventionally scrapped, materials can be used more effectively and the strength of the socket mounting part can be maintained. It is.

Further, in the present invention, a locking step is formed on the outer end side of the mounting piece, and a stopper portion that is locked to the locking step is formed in the mounting groove of the lamp socket, so that the lamp socket can be held in a predetermined position without shifting. This ensures that the lamp can be mounted securely.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a lighting fixture showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the socket mounting device portion of the above, Fig. 3 is a vertical sectional front view of the same, Fig. 4 is a longitudinal sectional side view of the same; FIG. 5 is a perspective view of the upper end plate, and FIG. 6 is a perspective view of the instrument body showing another embodiment. 1... Instrument main body, 2... End plate, 4... Side plate part,
8...Inner piece, 9, 28...Mounting piece, 10...
Locking step portion, 20...Lamp socket, 21...Mounting groove, 23...Stopper portion, 25...Lamp.

Claims (1)

[Claims] 1. A cross section approximately U with end plates at both ends and an open front surface.
It consists of a long, slender instrument body in the shape of a letter, and straight tube lamp sockets that are attached to each other in pairs at both ends of the opening of the instrument body, and are bent horizontally at both ends of the opening of the body with overlapping pieces. What is claimed is: 1. A lamp socket mounting device for a lighting fixture, characterized in that mounting pieces are formed in the shape of a shape, and mounting grooves formed on both sides of the base of the lamp socket are respectively engaged with the mounting pieces on both sides. 2. A lamp socket mounting device for a lighting fixture according to claim 1, characterized in that the mounting pieces that engage with the mounting grooves of the lamp socket are formed by folded overlapping pieces that are integrally provided from both end plates of the fixture main body. . 3. The lighting fixture according to claim 1, wherein the mounting piece that engages with the mounting groove of the lamp socket is formed by a folded and overlapped piece that is integrally provided from the opening edge of the side plate of the fixture body. Lamp socket mounting device. 4 Approximately U cross section with end plates at both ends and open front
It consists of an elongated device body in the shape of a letter, and straight tube lamp sockets that are attached in pairs to both ends of the opening of the device body. a mounting piece is formed, a locking step is formed by notching the outer end of the inner piece of the mounting piece, and a mounting groove is formed in the lamp socket to engage with the mounting pieces on both sides, and the mounting groove is A lighting device, characterized in that a stopper portion that is locked to the locking step portion is protrudingly provided, and the mounting groove of the lamp socket is engaged with the mounting piece, so that the stopper portion is locked to the locking step portion. Lamp socket mounting device.