JPS5922644Y2 - Vehicle lights - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a vehicle lamp.

More specifically, the present invention relates to a vehicular lamp in which a housing and a rim can be attached in a so-called one-touch manner.

FIG. 1 shows a conventional example of an automobile tail lamp in which a housing and a rim can be attached with one touch.

That is, the locking pieces 24 provided on the longitudinal side walls 21 and 23 of the synthetic resin housing 2 are connected to the claws C9b at both ends of the synthetic resin rim a on which lenses la and lb of different colors are placed and fixed. This structure allows one-touch installation by engaging the locking pieces 22 respectively.

The housing 2 includes a plurality of valves 3, 3,
In addition, a partition wall 25 of the lamp room is provided integrally.

The upper end of this partition wall 25 is disposed within a groove d provided at a corresponding position on the rim a to prevent light from leaking into the adjacent lamp chamber.

In this way, when mounting the housing 2 and the rim a, if one-touch mounting is used without using screws, the hook provided on one end of the rim a can be attached to the side wall 23 of the housing 2. A state in which the locking piece 24 is locked, and the approximately inverted U-shaped elastic locking piece 22 provided on the side wall 21 of the housing 2 is elastically pressed by the claw C provided at the other end of the rim a. engage with.

In this structure, in order to firmly attach the rim a and the housing without any play, a pressing force is applied by the elasticity of the elastic locking piece 22 to the locking part between the locking piece 24 and the claw part. A predetermined pressing force is also required at the engagement portion between the elastic locking piece 22 and the claw portion C.

However, when the length L in the longitudinal direction of the housing 2 is relatively long, it is difficult to set the dimensions of the elastic locking piece 22 to obtain the necessary pressing force, and dimensional deformation occurs due to molding of the housing 2. The engagement between the elastic locking piece 22 and the claw portion C may have play.

The present invention has been developed in view of the above circumstances, and is capable of reliably locking and securing both ends of a housing with a rim without any looseness in a housing having relatively long dimensions in the longitudinal direction.
An object of the present invention is to provide a vehicular lamp whose dimensions can be easily set at the time of design.

The vehicle lamp of the present invention has a rim in which a groove is formed at a position corresponding to the upper end of the light chamber partition wall of the housing, and a positioning projection with which the partition wall abuts is provided on the inside of the groove. By assembling the rim and the housing with the partition walls in contact with the protrusions, both longitudinal ends of the housing and the rim are reliably engaged and secured without play.

Hereinafter, one embodiment of the present invention will be described in detail based on FIGS. 3 to 5.

In addition, in FIGS. 3 to 5, the same parts as in the above-mentioned conventional example are given the same reference numerals.

2 to 5 show an embodiment in which the present invention is applied to a tail lamp for an automobile.

For the sake of explanation, the lenses la and lb of different colors and the synthetic resin housing 2 are assumed to have the same structure as described above.

That is, since the stop lamp and the turn lamp are a tail lamp adjacent to the single housing 2, the lenses 1a and 1b are color-coded into red and orange, for example.

These lenses la and lb are placed and fixed by injecting hot melt adhesive or the like into a groove 41 provided on the periphery of the rim 4.

The housing 2 is molded, for example, from a synthetic resin such as polypropylene.

FIG. 3 shows a longitudinal section of the housing 2. A partition wall 25 is provided in the middle part, and bulbs 3, 3 are housed in adjacent lamp chambers, respectively.

In addition, a locking claw 24 and an inverted U-shaped elastic locking piece 22 are provided on a part of the opening periphery of the side walls 21 and 23 at both ends in the longitudinal direction, and each locks or engages with the claw portions 43 and 42 of the rim 4. let

That is, the locking claw 24 is locked to the claw portion 43, and the elastic locking piece 2
2 is elastically deformed and engaged with the claw portion 42 in a suppressed state.

Furthermore, the upper end of the partition wall 25 is positioned in the groove 5 provided at the corresponding position on the rim 4.

As shown in FIG. 4 in a cross section perpendicular to FIG. 3, the housing 2 is attached with the opening peripheral edges 26a, 27a of the side walls 26, 27 inscribed in the rim 4.

A fifth groove is provided in the groove 5 of the rim 4 corresponding to the partition wall 25.
As shown in the figure, protrusions 53 having an inclined surface 53 a and a hanging surface 53 b are formed on one side edge 52 of the side edges 51 , 52 of the groove 5 at an appropriate number of intervals.

The vehicle lamp of the present invention is constructed as described above, and in order to attach the housing 2 to the rim 4 on which the lenses la and lb are mounted and fixed, the locking claw 24 is first locked to the claw portion 43 of the rim 4. After that, the elastic locking piece 22 is pushed in the direction of the claw portion 42 to elastically engage it.

At this time, the upper edge 28 of the partition wall 25 slides on the inclined surface 53a formed on the protrusion 53 of the groove 5 and comes into contact with the hanging surface 53b.

Therefore, as shown in FIG. 3, the locking claw 24 of the housing 2 and the claw portion 43 of the knob 4 are locked only when the upper edge 28 of the partition wall 25 is slightly engaged by the hanging surface 53b of the projection 53. The retaining claws 24 abut against each other with a pressing force and are securely locked without play, and at the same time, the elastic locking pieces 22 are securely engaged with the claws 42 with a predetermined pressing force.

That is, conventionally, the mounting force for attaching the locking claw 24 of the housing 2 and the elastic locking piece 22 to the claw portion 43, 42 of the rim 4 had to be set based on the length L in the horizontal direction. However, in the present invention, as described above, since the partition wall 25 is brought into contact with the protrusion 53 of the groove 5, the locking pawl 2
The locking force between 4 and the claw portion 43 is determined by the length 1, which is considerably shorter than the length L.
2 can be set as a standard, and therefore dimensions can be easily set including deformation due to molding, and locking can be ensured.

In addition, the dimensions of the other elastic locking piece 22 can be set to obtain a predetermined pressing force based on the length shown later in the figure, so it is much easier to set the dimensions than before, including deformation due to molding, and there is no backlash. It can be locked securely without any problems.

Note that, as a matter of course, the present invention is not limited only to the above embodiments.

[Brief explanation of the drawing]

FIG. 1 shows a side sectional view of a conventional example. 2 to 5 show an embodiment of the present invention, FIG. 2 is a plan view of a tail lamp for an automobile, and FIG. 3 is an II of FIG.
Line sectional view, Figure 4 is a line sectional view taken along ■I-II in Figure 2, and Figure 5.
The figure is a partial perspective view in the direction of arrow A in FIG. 3. la, lb...lens, 2...housing, 22...elastic locking piece, 24...
Locking piece, 25...Partition wall, 4...Rim, 42.43...Claw portion, 5...Groove, 5
3... Protrusion.

Claims (1)

[Scope of utility model registration request] It consists of a lens, a rim on which the lens is placed and fixed, and a synthetic resin housing.The interior of the synthetic resin housing is divided into a plurality of lamp chambers by partition walls, and both longitudinal ends is provided with a locking piece and an elastic locking piece,
Provided at both ends in the longitudinal direction of the rim are claw portions that engage with the locking pieces and elastic locking pieces of the housing, and a groove portion is formed at a position corresponding to the upper end of the light chamber partition wall of the housing,
A vehicle lamp in which the housing and the rim are assembled by inserting the partition wall of the housing into the groove of the rim and engaging the claws at both ends of the rim with the locking pieces and elastic locking pieces at both ends of the housing. In the above, a positioning projection is provided inside the groove of the rim, and the housing and the rim are assembled with the upper end of the partition wall of the housing in contact with the projection. Vehicle lighting.