JPH0521203Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a vehicle lamp such as a tail light, and more particularly to a mounting structure for an inner lens.

[Conventional technology]

FIG. 5 shows an example of the conventional attachment of this type of inner lens 91, in which recesses 21 are formed at appropriate locations, for example, four locations, on the inner diameter of the housing 20, and the inner lens 91 is The inner lens 91 is formed so that its outer diameter substantially matches the inner diameter of the housing 20, and a convex portion 92 is formed on the side surface of the inner lens 91 at a right angle from the side surface at a position corresponding to the concave portion 21. When attaching to the housing 20, the inner lens 91 is pushed in by deforming the member from which the housing 20 is formed, and the concave portion 21 and the convex portion 92 are fitted. It is. After the concave portion 21 and the convex portion 92 are fitted, the deformation of the housing 20 is restored due to its elasticity, and the fitting is performed.

[Problem that the idea aims to solve]

However, in the conventional inner lens 91 described above, the convex portion 92 is formed at right angles from the side surface, and the housing 2
0, it is necessary to deform the housing 20 by the same amount as the height of the convex portion 92, and a very large stress is required when inserting it to the predetermined position, which reduces workability. This has led to the problem of deterioration, and the solution to this problem has become an issue.

[Means to solve the problem]

The present invention is a specific means for solving the above-mentioned conventional problems, and provides a vehicle lamp in which a convex part protruding from the side surface of the lens is fitted into a concave part provided at an appropriate location on the inner surface of the housing. In the inner lens, the convex portion provided on at least one side of the inner lens is provided to be bent backward with respect to the insertion direction when the lens is attached to the housing. By providing the inner lens described above, the above-mentioned installation work is made easier and the above-mentioned conventional problems are solved.

【Example】

Next, the present invention will be explained in detail based on an embodiment shown in the drawings. In order to facilitate understanding, parts that are the same as those in the conventional example will be described with the same reference numerals, and descriptions of some overlapping parts will be omitted. What is indicated by the reference numeral 1 in FIGS. 1 and 2 is an inner lens according to the present invention.
It is similar to the conventional example in that the convex portion 2 fits and engages the inner lens 1, but according to the present invention, all of the convex portions 2 are engaged with the housing 20 of the inner lens 1. It is formed to bend backwards with respect to the insertion direction when worn. Since the convex portion 2 can be formed using the mold used to form the inner lens 1, the production of the inner lens 1 will not be complicated. In addition, if the convex portion 2 is bent backward and causes a problem in fitting with the concave portion 21 provided on the housing 20 side, appropriate changes may be made to the concave portion 21, such as widening the width along the insertion direction. It is also possible to add. Next, the function and effect of the present invention having the above-mentioned structure will be explained. Since the convex portion 2 is formed to be bent backward, when inserted into the housing 20, as shown in FIG. 3, the housing 20 At the same time, the convex portion 2 also bends and deforms, and the stress required at the time of insertion is significantly reduced. What is shown in FIG. 4 is another embodiment of the present invention, in which, in addition to the backward bending of the recess 21 of the previous embodiment, slots 3 are provided on both sides of the recess 21. This makes the convex portion 2 more likely to bend when inserted into the housing 20, thereby making the effect of stress reduction during insertion even more effective.

[Effect of the idea]

As explained above, according to the present invention, the convex portion provided on the inner lens is bent backward with respect to the insertion direction when the inner lens is attached to the housing, so that the convex portion is also It deforms when it is attached to the housing, thereby reducing the amount of deformation on the housing side, which requires greater stress for deformation, and reducing the stress during the above-mentioned attachment operation, making the operation easier. year,
This has the excellent effect of making it possible to improve the productivity of this type of vehicle lamp.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the inner lens of a vehicle lamp according to the present invention, FIG. 2 is a cross-sectional view taken along the - line in FIG. 1, and FIG. 3 is a cross-sectional view showing the insertion process. FIG. 4 is a perspective view showing the main parts of another embodiment of the present invention, and FIG. 5 is a perspective view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Inner lens, 2... Convex part, 3... Slot, 20... Housing, 21... Concave part.

Claims (1)

[Scope of utility model registration request] In an inner lens for a vehicle lamp, a convex portion protruding from a side surface of the lens is fitted and engaged with a concave portion provided at an appropriate location on the inner surface of the housing, and the convex portion provided on at least one side of the inner lens. An inner lens for a vehicle lamp, characterized in that the lens is bent backward with respect to an insertion direction when the lens is attached to a housing.