JPS6328554Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to lighting equipment.

Conventionally, it has been considered to provide a thread on the outer periphery of a lamp socket, screw the shade fitting into the lamp socket, and support the shade using the shade fitting.

However, there was a drawback that attaching the shade was troublesome. Furthermore, when the lamp socket is manufactured using a split mold, the screw threads may become misaligned, making it difficult to screw the shade fitting into the lamp socket.

Therefore, the object of this invention is to provide a lighting fixture in which the shade can be attached in one-touch manner and which can absorb the misalignment of the screw threads when the lamp socket is manufactured using a split mold.

The first lighting equipment to which an embodiment of this invention is applied
This is shown in Figures 6 to 6. That is, 1 is the ceiling, 2
3 is the fixture mounting bracket, 3 is the wood screw thereof, 4 is the threaded lamp socket attached to the bracket 2, 5 is the incandescent lamp, 6 is the shade, 7 is the shade mounting bracket, 8 is the ceiling 1 9 is the power wire hole, and 10 is its protective tube. This protective tube 10 is a bifurcated cylindrical body, and each branch wire 9a, 9b of the power supply line 9 is inserted into the end of the body portion 10a, and the branch wires 9a, 9b are individually passed through the bifurcated portion 10b and covered. Further, as shown in FIGS. 4 to 6, the lamp socket 4 has a threaded portion 11 on the outer surface with a thread 11 corresponding to one pitch at the top.
It is continuous by a length a, and a portion below that has a notch 11b in the axial direction. On the other hand, the shade fitting 7 has threads 12 formed on its inner periphery corresponding to the cutouts 11b, and the rest are cutouts through which the threads with the cutouts 11b pass.

To assemble, hold the lamp socket 4 in the appliance mounting bracket 7, pass the protective tube 10 through the power wire 9 drawn out from the wire hole 8 in the ceiling 1, and attach the ends of the branch wires 9a and 9b protruding from the tube 10 to the mounting bracket 2. The lamp socket 4 is connected to the lamp socket 4 through the lamp socket 4, and the fixture mounting bracket 2 is attached to the ceiling 1 with wood screws 3. Pass the shade 6 through the lamp socket 4, and then pass the shade fitting 7 through it. At this time, when the shade fitting 7 is inserted in the axial direction with its thread 12 aligned with the notch 11b of the lamp socket 4, it will come into contact with the thread 11a, and when turned in this state, it will be tightened in about one turn, and the shade 6 can be fixed. Furthermore, an incandescent lamp 5 is inserted into the lamp socket 4.

Because of this structure, the protective tube 10 of this embodiment has the same size as the split size of the power line 9 and the tube 1.
Even if the length of the body 10a is not suitable (short), the body 10a is present, and the length Q of the body 10a can be satisfied by setting the length Q of the body 10a to about 25 mm, for example, compared to the standard 10 mm. Moreover, this protective tube 10 prevents the split of the lead wire from becoming too wide. Furthermore, the branch line 9 of the power line 9
At the time of connecting a and 9b, the tube 10 can be shifted in the opposite direction from the end of the power line 9 as shown in Figure 3a, so there is no hindrance in the connection, and it is easy to do as shown in Figure 3b. can be returned to. Moreover, the tube 10 does not easily come off.

As a result, by forming the protective tube 10 into a patch type, that is, a bifurcated cylindrical body, standards and regulations can be fully satisfied, and connection of power supply lines and dimension control can be easily performed.

Furthermore, due to the structure of the socket 4 as described above, the shade fitting 7 can be attached regardless of the thickness of the shade 6.
can be screwed in with one touch. The structure is such that even if the thread 11 is slightly misaligned during the manufacturing process using the split mold of this socket, the shade fitting 7 can be screwed together sufficiently.

As described above, the lighting device of this invention includes a lamp socket having a screw thread and a notch in the thread in the axial direction, and a screw thread passing through the notch in the axial direction and screwing into the screw thread. and a shade fitting having an inner periphery formed with a notch through which the thread of the lamp socket passes in the axial direction, and a shade loosely fitted into the lamp socket and supported by the shade fitting, so that the following effects can be achieved. There is.

In other words, a notch is formed in the thread of the lamp socket, and a notch is formed in the shade fitting to pass through the notch and the screw thread of the lamp socket, so that the shade can be attached in one touch regardless of the thickness of the shade. The fixture can be screwed into the lamp socket. Furthermore, even if the lamp socket is manufactured using a split mold, even if there is some misalignment of the screw thread, by setting the missing part at the split position of the split mold, the misalignment can be absorbed and there is no problem in screwing the shade fitting. be.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a lighting fixture to which an embodiment of this invention is applied, Fig. 2 is a plan view of the protective tube, Fig. 3 is a plan view of the device in use, and Fig. 4 is an exploded perspective view of the socket and mounting bracket. FIG. 5 is an exploded sectional view thereof, and FIG. 6 is a sectional view of the connected state. 4... Lamp socket, 7... Shade fitting,
11, 12...screw thread, 11b...missing part.

Claims (1)

[Scope of utility model registration request] A lamp socket having a thread and having a notch in the thread in the axial direction, a screw thread passing through the notch in the axial direction and threadedly engaged with the screw thread, and a screw thread of the lamp socket passing in the axial direction. A lighting fixture comprising: a shade fixture having a notch formed in its inner periphery; and a shade loosely fitted into the lamp socket and supported by the shade fixture.