JPH0345363Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a bulb holder for removably holding a bulb in a predetermined position within a reflector in a vehicle lamp.

[Conventional technology]

Below, the bulb holder of the conventional vehicle lamp is shown in the third example.
This will be explained with reference to the figures and FIG.

In the figure, 1 is a reflector made of synthetic resin,
This reflector 1 has a paraboloid of revolution reflection surface 1 on its inner surface.
0 is formed, a through hole 11 is provided in the center part, and a standing wall 12 is integrally provided on the periphery of the through hole 11 at the rear. Such a reflector 1 is disposed within a lamp chamber defined by a lens (not shown) and a housing (not shown).

Reference numeral 2 denotes a bulb, and this bulb 2 includes a glass bulb 20 in which a filament (not shown) is sealed;
A cap 21 provided at the rear of the glass tube 20,
A flange 22 integrally protruding from the middle part of the cap 21
and a terminal 23 protruding rearward from the rear of the base 21.
It consists of.

3 is a metal holder cap, and this holder cap 3 includes a small-diameter cylindrical portion 30 and a large-diameter cylindrical portion 3 provided on the small-diameter cylindrical portion 30 via a stepped portion 31.
2, and collar parts 33 and 36 provided at the periphery of the large diameter cylindrical part 32 and the small diameter cylindrical part 33. A T-shaped engagement groove 34 is provided in the large-diameter cylindrical portion 32 and its flange 33, and a caulking portion 35 is provided in a portion of the flange 33 that faces the engagement groove 34. A protrusion 37 is provided inside the collar portion 33 on the side of the small diameter cylindrical portion 30. The small diameter cylindrical portion 30 of the holder cap 3 is inserted into the through hole 11 of the reflector 1, and the holder cap 3 is fixed to the reflector 1 with a screw (not shown) or the like.

Reference numeral 4 denotes a spring, and this spring 4 has a substantially circular shape with a partially opened portion, and a base portion 40 formed by bending the middle portion into a U-shape, engaging portions 41 provided on both sides of the opening portion, and the engaging portions 41 provided on both sides of the opening portion. It consists of an abutment part 42 formed by bending the intermediate part of the joining part 41 and the base part 40 into a wave shape. The base 40 of the spring 4 is set in the crimping part 35 of the holder cap 3, and the crimping part 35 is crimped from the state shown by the solid line to the state shown by the two-dot chain line in FIG. Attach the base 40 of the holder cap 3 to the holder cap 3.

In this way, the glass bulb 20 of the bulb 2 is inserted into the holder cap 3 and positioned inside the reflector 1, and the flange 22 of the bulb holder 2 is inserted into the projection 37 of the flange 33 on the small diameter cylindrical portion 30 side of the holder cap 3.
bring it into contact with. Then, the abutting portion 42 of the spring 4 is brought into contact with the flange 22 of the valve 2, the engaging portion 41 of the spring 4 is engaged with the engaging groove 34 of the holder cap 3, and the flange 22 of the valve 2 is brought into contact with the holder cap 3. Flange portion 33 of cap 3 and contact portion 42 of spring 4
As a result, the bulb 2 is removably held at a predetermined position within the reflector 1, for example, in a state where the filament of the bulb 2 is located at the focal point (not shown) of the reflective surface 11 of the reflector 1.

[Problem that the invention attempts to solve]

However, in the above-mentioned conventional bulb holder for a vehicle lamp, the holder cap 3 is first fixed to the reflector 1 with a screw or the like, and then the base 40 of the spring 4 is crimped to the crimped part 35 of the holder cap 3. Since it is attached, there are problems such as a large amount of assembly man-hours and an increase in costs.

An object of the present invention is to provide a bulb holder for a vehicle lamp that can reduce costs.

[Means for solving problems]

In this invention, the part where the holder cap is fixed to the reflector by the screw is adjacent to the part where the spring base is attached to the holder cap, and the head of the screw, which fixes the holder cap to the reflector, is attached to the holder cap at the base of the spring. It is characterized by facing the attachment point.

[Effect]

This invention has the function of fixing the holder cap to the reflector by screwing in the screw to fix the holder cap to the reflector, and the function of attaching the base of the spring to the holder cap. It can also serve as a function to prevent the screw from coming off with the head of the screw.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a bulb holder for a vehicle lamp according to the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, the same reference numerals as in FIGS. 3 and 4 indicate the same parts. In the figure, reference numeral 13 denotes a boss portion integrally provided on the outside of the vertical wall 12 of the reflector 1.

Reference numeral 5 designates a holder cap made of synthetic resin or metal, and this holder cap 5 has a flange 51 integrally stretched inside the periphery of one opening of a cylindrical portion 50, and a protrusion 52 on the inside of the flange 51. establish. A collar-shaped attachment part 54 is integrally provided on the periphery of the other opening of the cylindrical part 50 with an L-shaped part 53 interposed therebetween. The mounting portion 54 is provided with a plurality of through holes 55 through which the screws 6 are inserted. A protrusion 56 is integrally provided at a location adjacent to one of the plurality of through holes 55 of the L-shaped portion 53 to protrude outward, and the base 40 of the spring 4 is attached. A portion 57 is formed. The opening of the mounting portion 57 faces the head 60 of the screw 6 when the screw 6 fixes the holder cap 5 to the reflector 1, and the distance between the head 60 of the screw 6 and the protrusion 56 is W is configured to be smaller than the diameter of the base portion 40 of the spring 4.

Mounting portion 5 of the L-shaped portion 53 of the holder cap 5
An engaging portion 58 is provided at a location facing 7.

Thus, the cylindrical portion 50 of the holder cap 5 is inserted into the through hole 11 of the reflector 1, and the mounting portion 54 of the holder cap 5 is brought into contact with the boss portion 13 of the reflector 1. Next, insert the base 40 of the spring 4 into the attachment part 57 of the holder cap 5, insert the screw 6 into the through hole 55 of the holder cap 5, and insert the screw 6 into the boss part of the reflector 1.
3 and attach the holder cap 5 to the reflector 1.
Fixed to. At this time, one process of screwing in the screw 6 can serve as both the process of fixing the holder cap 5 to the reflector 1 and the process of attaching the base 40 of the spring 4 to the attachment part 57 of the holder cap 5. Therefore, it is possible to reduce assembly man-hours and reduce costs.

And the head 60 of the screwed screw 6
and the protrusion 56 of the holder cap 5
is smaller than the diameter of the base 40 of the spring 4,
There is no risk that the base portion 40 of the spring 4 will come off from the mounting portion 57 of the holder cap 5.

The bulb holder of the vehicle lamp of the present invention in this embodiment has the above-mentioned structure, and its operation will be explained below.

Place the glass tube 20 of the bulb 2 into the holder cap 5.
The bulb 2 is inserted into the cylindrical portion 50 of the reflector 1, and the flange 22 of the bulb 2 is inserted into the holder cap 5.
The protrusion 52 of the flange 51 is brought into contact with the protrusion 52 of the flange 51 . after that,
The contact part 42 of the spring 4 is connected to the flange part 22 of the valve 2.
The engaging portion 41 of the spring 4 is engaged with the engaging groove 58 of the holder cap 5, and the valve 2
The flange 22 of the holder cap 5 is elastically clamped by the protrusion 52 of the flange 51 of the holder cap 5 and the abutting part 42 of the spring 4. As a result, the bulb 2 is held at a predetermined position within the reflector 1, for example, the filament of the bulb 2 is held at a predetermined position within the reflector 1. It is detachably held in a state located at the focal point (not shown) of the reflective surface 11.

[Effect of idea]

As is clear from the above, in the bulb holder of the vehicle lamp of the present invention, the part where the holder cap is fixed to the reflector by the screw is adjacent to the part where the base of the spring is attached to the holder cap, and the holder cap is attached to the reflector. The head of the fixed screw faces the attachment point to the holder cap at the base of the spring, so one process of screwing in the screw involves both the process of fixing the holder cap to the reflector and the process of attaching the holder cap to the base of the spring. The process of attaching the screw to the attachment part (the head of the screw has the function of preventing the base of the screw from slipping out of the attachment point of the holder cap) can be used in combination. Therefore, it is possible to reduce assembly man-hours and reduce costs.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of a bulb holder for a vehicle lamp according to the present invention in a used state, and FIG. 2 is an enlarged view of a portion of FIG. 1. FIG. 3 is a sectional view showing a conventional vehicular lamp bulb holder in a used state, and FIG. 4 is a perspective view of the conventional vehicular lamp holder. 1...Reflector, 13...Boss, 2...Valve, 4...Spring, 40...Base, 5...
Holder cap, 57... attachment part, 6... screw, 60... head.

Claims (1)

[Scope of utility model registration request] A bulb holder for a vehicle lamp, comprising: a holder cap fixed to a reflector with a screw; and a spring, the base of which is attached to the holder cap, and which removably holds the bulb together with the holder cap at a predetermined position within the reflector.
The part where the holder cap is fixed to the reflector with the screw is adjacent to the part where the base of the spring is attached to the holder cap, and the head of the screw that fixes the holder cap to the reflector is attached to the part of the base of the spring where it is attached to the holder cap. A bulb holder for a vehicle light, which is characterized by a light bulb holder.