JPH0120727Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a holding structure for a socket into which a tail lamp, brake lamp, etc. of an automobile or the like is fitted.

(Prior Art) As shown in FIG. 4, the conventional holding structure includes an insulating cylindrical holding part 2 protruding from a base 1.
The structure is such that the conductive cylindrical socket 3 is simply press-fitted. An insulating terminal plate 5 having one electrode 4 is disposed inside the socket 2, and a lead wire 7 introduced through the hole 6 of the base 1 is connected to the electrode 4 of the terminal plate 5. The other lead wire (ground wire) 8 is held between the inside of the holding part 2 and the outside of the socket 3, and is electrically connected to the socket 3. The terminal plate 5 is movable within the socket 3 over a certain range in the longitudinal direction of the socket 3, and is always urged toward the opening 3a of the socket 3 by a spring 9.

In the conventional holding structure described above, dimensional accuracy is a problem because the socket 3 is simply press-fitted into the holding part 2, and since the socket 3 is made of metal and the holding part 2 is made of plastic, it is difficult to hold the lamp. When the socket 3 thermally expands due to heat generated during lighting, etc., the socket 3 falls off due to the difference in expansion rate between the two, and the socket 3
One conductive part came into contact with another conductive part, causing a short circuit accident.

(Purpose of the invention) The present invention was made in order to solve the above-mentioned conventional problems, and its purpose is to facilitate press-fitting of the socket and to reliably prevent the socket from moving or coming out. The object of the present invention is to provide a holding structure for a lamp socket that can hold a lamp socket.

(Summary of the invention) The present invention is a lamp socket holding structure in which a socket is press-fitted into the internal space of a holding part protruding from a base, and the holding part has a part of the peripheral wall formed on the outer periphery. At least one concave notch is formed on the inner peripheral side of the bulge in the direction, and within the concave notch,
A hook is disposed protruding from at least one of the base and the holding part, and the hook has a claw that can enter and lock into a stopper hole of the socket press-fitted into the holding part. This is a holding structure for a lamp socket.

(Example) The present invention will be described below based on an example shown in FIGS. 1 to 3.

The holding structure of the present invention includes an insulating base 20 made of plastic or the like as in the conventional case, and an insulating cylindrical holding part 21 integrally projecting from the base 20.
and a metal cylindrical socket 22 that is press-fitted into the internal space of the holding portion 21.

The base 20 is generally made of a plate-like member having a desired shape, and is attached to a vehicle body or the like via a mounting portion 23 or the like having a known structure. Further, an electrical connector 24 is fitted onto the base 20.
is one lead wire 25 (FIGS. 1 and 2) led out from each socket 22 and the other ground wire 26.
(Fig. 2) Terminal connected to the tip (not shown)
It is of known structure. In addition,
At least one, generally a plurality of holding parts 21 are provided on the base 20, and a lamp 27 such as a brake lamp or a tail lamp of an automobile is fitted into each holding part 21.

The socket 22 accommodates an insulating terminal plate 29 having an electrode 28 connected to the end of the lead wire 25, as in the prior art. A pair of stopper protrusions 30 are provided around the periphery of the terminal plate 29, and these are engaged with the engagement holes 31 (only one of which is shown) of the socket 22. Further, the terminal plate 29 is connected to the socket 22
It is urged toward the outlet side of the socket 22 by a spring 32 inside. On the other hand, the lamp 27 is also provided with a pair of locking protrusions 33 (only one shown), which are locked into a pair of "7"-shaped locking holes 34 of the socket 22. When the lamp 27 is fitted into the socket 22, the electrode 35 of the lamp 27 presses against the electrode 28 against the spring 32. The spring 32 maintains the electrodes 28, 35 in contact with each other.

In the lamp socket holding structure configured as described above, according to the present invention, the holding portion 21
A part of the peripheral wall bulges toward the outer periphery, and at least one (in this example, a pair opposing each other) is formed on the inner periphery side.
A recessed portion 36 is formed, and a hook 37 protruding from at least one of the base 20 and the holding portion 21 (base 20 in this embodiment) is disposed within the recessed portion 36. The hook 37 has a claw 38 at its tip end that normally projects into the internal space of the holding part 21, and when the socket 22 is press-fitted into the holding part 21, the socket 22 allows the claw 38 to fit into the recessed notch. It has elasticity so that it is completely pushed into the portion 36. Further, the socket 22 has a stopper hole 40 into which the claw 38 of the hook 37 enters and locks when the socket 22 is press-fitted into a predetermined position within the holding portion 21.

As is clear from the structure of the above embodiment, when the socket 22 is press-fitted into the holding part 21, the hook 3
The claw 38 of No. 7 is once pushed away into the recessed part 36,
When the socket 22 reaches a predetermined insertion depth, the claw 3
8 returns and enters the stopper hole 40. The pawl 38 engages with the stopper hole 40 and serves to prevent the socket 22 from moving out of a predetermined range. Note that when the socket 22 is press-fitted, the ground wire 26 is connected to the outside of the socket 22 and the holding part 21.
It is sandwiched between the inside of the In this embodiment, a desired slit 41 for guiding the ground wire 26 is formed in the holding portion 21. In addition, the lead wire 25
is from the inside of the socket 22 to the through hole 42 of the base 20.
through to electrical connector 24.

(Effects of the invention) As explained above, according to the invention, a hook having a claw is provided in the recessed part of the holding part, and a stopper hole corresponding to the claw is provided in the socket, thereby improving dimensional accuracy. In addition, the socket press-fitted into the holding part is held within a predetermined range by the claws even if a gap is generated due to thermal expansion, and therefore, the risk of short circuit accidents due to the socket falling off is eliminated. Ru.

[Brief explanation of the drawing]

1 is an exploded perspective view of a lamp socket holding structure according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and A and B in FIG. A plan view and a perspective view, and FIG. 4 is a sectional view of a conventional holding structure. Explanation of symbols, 20... Base, 21... Holding part,
22...Socket, 25...Lead wire, 26...
Earth wire, 27... Lamp, 28... Electrode, 29
... Terminal board, 32 ... Spring, 36 ... Recessed part, 3
7...Hook, 38...Claw, 40...Stopper hole.

Claims (1)

[Scope of utility model registration request] A lamp socket holding structure comprising a base, an insulating cylindrical holding part protruding from the base, and a conductive cylindrical socket press-fitted into an internal space of the holding part. A part of the peripheral wall of the holding part bulges toward the outer circumference, and at least one recessed part is formed on the inner peripheral side of the holding part, and at least one of the base and the holding part is disposed in the recessed part. A hook is disposed protruding from one side, and the hook has a claw that normally protrudes into the internal space of the holding part,
When the socket is press-fitted into the holding part, the socket has elasticity so that the claw is completely pushed into the recessed part, and when the socket is press-fitted into a predetermined position in the holding part, A holding structure for a lamp socket, characterized in that it has a stopper hole into which the claw of the hook enters and locks.