JPH0646004Y2 - Reflector mounting structure for vehicle lighting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a reflector mounting structure for a vehicle lamp, and more particularly to a structure for crimping a reflector to a lamp housing made of synthetic resin.

[Conventional technology]

Generally, a vehicular lamp has a light source bulb installed in a lamp housing and a lens disposed on the front side thereof.
In addition, the reflector is provided on the rear side of the light source bulb.

Some of the above-mentioned reflectors have a reflective film formed on the inner surface of the lamp housing (for example, vapor deposition) to serve also as a reflector, and a curved plate-shaped reflector is provided separately from the lamp housing, There is also one in which this is attached to the inner surface of the lamp housing.

In order to form a reflector separate from the lamp housing and attach the reflector to the inner surface of the lamp housing, a screw-in type mounting screw may be used, or a small screw and a nut may be used. May be caulked, or may be thermally caulked by inserting a mounting pin integrally formed with the lamp housing made of synthetic resin into the hole of the reflector.

Each method has merits and demerits, but from the viewpoint of simplicity and good productivity, the method by thermal caulking is preferable.

FIG. 3 is a cross-sectional view showing a high mount stop lamp as an example of a vehicular lamp.

Reference numeral 1 denotes a lamp housing made of synthetic resin, a light source bulb 2 is installed on the front surface side thereof, and a lens 3 is arranged on the front surface thereof.

Reference numeral 4 is a rear cover of this lamp, and 5 is a front cover of the same. Both covers 4 and 5 are connected by a mounting screw 6.

A curved plate-shaped reflector 7 is attached to the inner surface of the lamp housing 1.

The structure in which the reflector 7 of the conventional example is attached to the lamp housing 1 will be described with reference to FIG.

In the figure, (A) shows the state before attachment and (B) shows the state after attachment.

As shown in FIG. 1A, a pin-shaped projection 1a is integrally formed on the inner surface of the lamp housing 1. And reflector 7
Is provided with a mounting hole 7a.

The mounting hole 7a is fitted to the pin-shaped protrusion 1a (see FIG. 4 (B)), and the tip of the pin-shaped protrusion 1a is heat-crimped (heated, softened and crushed, and cooled and solidified). Crim the reflector 7.

[Problems to be solved by the device]

According to the conventional reflector mounting structure described with reference to FIG. 4, the crimp portion 8 is formed in the vicinity of the center of the reflecting surface of the reflector 7 as can be easily understood from FIG.
A perspective view of this conventional example is as shown in FIG. 5, and the reflector 7 is a curved plate having a substantially rectangular contour.

Thus, when the caulking portion 8 is formed in the vicinity of the central portion of the reflector 7, when this vehicular lamp (in this example, the high mount stop lamp) is turned on, a portion corresponding to the caulking portion near the central portion is provided. It produces a dark feeling.

It is an object of the present invention to provide a mounting structure which has a simple structure, is excellent in productivity, and does not cause a dark feeling, that is, a structural part for mounting a reflector does not appear in appearance. .

[Means for Solving the Problems]

The outline of the configuration of the present invention will be described with reference to FIG. 1 corresponding to the embodiment. The reflectors 9 made of a curved plate having a rectangular contour are arranged in the laterally long direction, and the reflectors 9 are arranged near both ends of the lower side, which is the long side thereof. A tongue-shaped bending bracket 9a is provided, and a tongue-shaped bending bracket 9b is provided near the center of the lower side.

Referring to FIG. 2 corresponding to one embodiment of the present invention, more specifically, the bending brackets 9a at both ends are bent by about 90 ° forward in the reflection direction (left in the drawing) and heat-crimped. ing.

In addition, the folding bracket 9b at the center is about 90
While being bent, it is inserted into an opening 1c provided in the lamp housing 1 and heat-crimped.

[Action]

According to the above configuration, the caulking portion is not formed near the central portion of the reflector 9. Therefore, the reflecting surface of the reflector is not affected by the caulking process. Therefore, there is no fear of giving a dark feeling when the light is turned on. Moreover, the reflector can be attached quickly and easily by the heat caulking operation.

Furthermore, at least two bending brackets at both ends are bent forward, and at least one bending bracket in the center is bent backward, and each is thermally crimped, so that the reflector is surely It is firmly fixed. In particular, since the bending bracket at the center is inserted into the opening of the lamp housing, there is no risk of the reflector falling or rising.

〔Example〕

FIG. 1 is a perspective view showing an embodiment of a reflector mounting structure for a vehicular lamp according to the present invention, and FIG. 2 is a sectional view of the same.

The reflector 9 of this example is formed of a curved plate having a rectangular contour, and bending brackets 9a are provided at both ends of the horizontally arranged lower side, which is a long side, and are bent forward with respect to the reflection direction. Is bent to make about 90 ° with respect to the reflecting surface 9r). Further, a bending bracket 9b is provided near the center of the lower side (see FIG. 2) and is bent about 90 ° rearward in the reflection direction, and is inserted into the opening 1c of the lamp housing 1 and heat crimped 8. There is.

According to the present embodiment, the reflector 9 is mounted on the lamp housing 1 without forming a caulked portion on the reflecting surface of the reflector 9.
Can be fixed with respect to, and the structure is simple, and the mounting work can be performed quickly and easily.

[Effect of device]

As described above, according to the mounting structure of the present invention, the pin-shaped projection provided on the lamp housing and the rivet hole provided on the bending bracket of the reflector are fitted together,
It has a simple structure that it is heat-crimped, and it has excellent productivity, and since it does not have crimped parts on the reflective surface of the reflector, it does not create a dark feeling, and the component part for fixing the reflector has an external appearance. Does not appear. The reason why it does not appear in the appearance is that the bending bracket is provided only on the lower side.

Further, among the bending brackets provided on the lower side, the bending brackets at both ends are bent forward in the reflection direction, and the bending brackets in the central portion are bent backward in the reflection direction. The fixed state is stable. In particular, since the bending bracket at the center is inserted into the opening of the lamp housing, it is possible to completely prevent the reflector from falling or rising.

[Brief description of drawings]

1 and 2 show an embodiment of a reflector mounting structure for a vehicular lamp according to the present invention. FIG. 1 is a perspective view and FIG.
The figure is a sectional view. FIG. 3 is a sectional view of a conventional high mount stop lamp, FIGS. 4 (A) and 4 (B) are explanatory views of a reflector mounting structure in the conventional example, and FIG. 5 is a perspective view of the same. DESCRIPTION OF SYMBOLS 1 ... Lamp housing, 1b ... Pin-shaped protrusion, 2 ... Light source bulb, 3 ... Lens, 4 ... Rear cover, 5 ... Front cover, 6
… Mounting screw, 7… Reflector, 7a… Rivet hole, 8… Crimped part, 9… Reflector, 9a… Bending bracket, 9 _a-1 …
Rivet hole, 9b… Bending bracket.

Claims (1)

[Scope of utility model registration request] 1. A vehicular lamp comprising a synthetic resin lamp housing and a curved plate-shaped reflector having a substantially rectangular contour, wherein both ends of a lower side, which is one side, of the reflector having the rectangular contour. Is provided with a tongue-shaped bending bracket projecting forward in the reflection direction, and is fixed to the lamp housing by heat crimping, and a tongue-shaped bending bracket protruding rearward in the reflection direction is attached to the central portion of the lower side of the reflector. A reflector mounting structure for a vehicular lamp, comprising: a bracket, the bracket being inserted into an opening provided in the lamp housing and being fixed to the lamp housing by thermal crimping.