JPS6228069Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a lamp socket.

Conventionally, as shown in FIG. 5, the central contact piece 50 and the receiver 51 that contact the lamp base were electrically connected to the quick-connect terminal 53 through the connecting screw 52, which made the socket assembly easy due to the large number of parts. However, it was difficult to adapt to automation, and there were concerns about the reliability of the electrical contact.

On the other hand, there were devices in which the quick connection terminal and the lamp contact piece were integrally formed (for example,
No. 112388, Japanese Patent Application Publication No. 55-9337). However, since the locking spring of the quick-connect terminal is a separate component, the contact reliability of the wire locking portion becomes a problem, and the structure is complicated and assembly is not easy.

Therefore, an object of this invention is to provide a lamp socket which is simple in structure and easy to assemble, and which can improve the contact reliability of the lamp contacting part and the wire locking part.

The first lighting equipment to which an embodiment of this invention is applied
As shown in FIG. That is, in this lighting fixture, the protrusion 2 on the top surface of the lamp socket 1 is fitted into the center hole of the socket base 3, and the socket base 3 is attached to the fixture main body 4 via the gasket 5. Attach to the ceiling (not shown) using wood screws 6. On the other hand, a power wire 7 drawn out from the ceiling is inserted through the wire insertion hole 8 of the protrusion 2 and connected.
Further, a lamp 9, for example an incandescent lamp, is screwed into the lamp socket 1, and a rubber gasket 11 is fitted to the upper end of the globe 10, which is then screwed into the appliance body 4.

The lamp socket 1 is composed of a socket body 12 and a socket cover 13.
Reference numeral 2 is a cylindrical body with a partition plate 14 in the middle thereof, and on the lower side there is a lamp mounting part 15 that screws into the lamp base 9a. Terminal storage part 1 where is stored
5a is formed. The quick-connection terminals 16 and 17 are arranged so that the wire insertion direction with respect to the locking springs 16a and 17a formed by cutting and bending is directed upward, and the quick-connection terminals 1
Eyelet contact piece 17 from one piece of 6, 17, respectively.
b and the shell contact piece 16b extend, and the eyelet contact piece 17b passes through the partition plate 14 and is located at the center of the lower surface of the partition plate 14, facing the eyelet at the end of the base 9a of the lamp 9. Further, the shell contact piece 16b passes through the partition plate 14 and is located on the lamp mounting portion 15. The socket cover 13 has the above-mentioned protrusion 2, the wire insertion hole 8, the mounting screw projection hole 18, and the mounting hole 19, and is mounted to the socket body 12 through the mounting hole 19 using the driving stud 20. Stored quick-connect terminal 16,1
Fix 7. For connection, when the wire 7 is inserted into the wire insertion hole 8 and pushed past the locking springs 16a and 17a, the spring action causes it to be pressed against the contact pieces of the quick-connect terminals 16 and 17, making electrical contact, and the locking spring The lock is achieved by biting the tip edges of 16a and 17a. Note that 21 is an unlocking hole.

This structure eliminates the need for conventional connection screws, improves the reliability of electrical contact (conductivity), improves the ease of assembling the lamp socket, reduces manufacturing costs, and makes it compatible with automatic assembly. Ta. In addition, the quick connection terminals 16, 17, the eyelet contact piece 17b, and the shell contact piece 16b are integrally formed, and the wire insertion direction and the eyelet contact piece 1
Since the lamp contact directions with respect to 7b are opposite to each other, as the lamp 9 is screwed into the lamp socket 1, the quick connection terminal 17 is pushed upward, and the electrical contact with the electric wire 7 is improved. On the contrary, lamp 9
When the electric wire 7 is inserted into the quick-connect terminal 17 into the lamp socket 1 into which the lamp socket 1 is screwed, the quick-connect terminal 17 is pushed down and electrical contact with the lamp 9 is improved, which is convenient.

Figure 3 shows a modification of the quick-connect terminal, with locking spring 1
The abutment piece 16'c facing the spring 6'a is tilted at a predetermined angle toward the spring to form a tapered surface 16'd. Insert the electric wire 22 through the wire insertion hole 8' and lock the locking spring 16'a.
When it is pushed past the tip of the locking spring 16'a, it is held between the locking spring 16'a and the tapered surface 16'd, and is bent along the tapered surface 16'd. As a result, as shown in Fig. 4, it is possible to prevent poor contact and poor mechanical retention when a bent wire 22' is inserted, and the bending resistance of the wire allows it to be strongly pressed against the tapered surface 16'd, resulting in high contact reliability. You can get sex. On the other hand, since the electric wire 22 is bent, it strongly bites into the locking spring 16a' and exhibits strong resistance to the pulling force.

As mentioned above, the lamp socket of this invention is
A socket body having a partition plate inside, a lamp mounting part formed at one end thereof and a terminal accommodating part formed at the other end, and an eyelet contact piece and a shell housed in the terminal accommodating part and passing through the partition plate. a pair of quick-connect terminals having a contact piece and a locking spring cut out; and a pair of quick-connect terminals that fix the quick-connect terminal by closing the terminal accommodating portion, and insert an electric wire corresponding to the electric wire insertion portion of the locking spring. The present invention is characterized in that the electric wire insertion direction of the quick connection terminal and the lamp insertion direction of the lamp mounting portion are opposite to each other, so that the following effects can be obtained.

In other words, the quick connection terminal is equipped with an eyelet contact piece and a shell contact piece, which eliminates the need for conventional connection screws and improves the contact reliability of the lamp contact part.The locking spring is integrally formed by cutting and bending, which reduces the structure. It is simple and even easier to assemble, and since the insertion direction of the electric wire connected to the quick-connect terminal and the insertion direction of the lamp are opposite to each other, insertion of one acts to strengthen the contact of the other, making it possible to lock the electric wire. The contact reliability of the parts can be further improved.

[Brief explanation of the drawing]

Fig. 1 is a half-sectional view of a lighting fixture to which an embodiment of this invention is applied, Fig. 2 is an exploded perspective view of its main parts, Fig. 3 is a partial sectional view of a modification of the quick-connect terminal, and Fig. 4 is a partial sectional view of a modified example of the quick-connect terminal. Partial sectional view with bent electric wire inserted, No. 5
The figure is a sectional view of a conventional example. 1...Lamp socket, 8...Wire insertion hole, 9
... Lamp, 12 ... Socket body, 13 ...
Socket cover, 14... Partition plate, 15... Lamp mounting section, 15a... Terminal storage section, 16, 17
...Quick connection terminal, 16a, 17a...Lock spring, 1
6b... Shell contact piece, 17b... Eyelet contact piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A socket body having an internal partition plate with a lamp mounting portion formed on one end thereof and a terminal storage portion formed on the other end; a pair of quick-connect terminals having an eyelet contact piece and a shell contact piece passing through the partition plate and having a locking spring cut out; A socket cover is provided with a wire insertion hole corresponding to the wire insertion portion of the spring.
A lamp socket characterized in that the electric wire insertion direction of the quick connection terminal and the lamp insertion direction of the lamp mounting portion are opposite to each other. (2) The supporting surface of the electric wire that is pressed by the locking spring of the quick-connect terminal is inclined so that the side opposite to the electric wire insertion side protrudes in a direction opposite to the protruding direction of the locking spring. A lamp socket according to claim (1) of the utility model registration claim.