JPH0757511A - Fitting structure for heat resistant plate of lamp of vehicle - Google Patents

Abstract

PURPOSE:To provide a fitting structure for a heat resistant plate of the lamp of a vehicle capable of increasing the preventing effect of the deformation of a housing due to the heating of a bulb. CONSTITUTION:This is a fitting structure for a heat resistant plate 16 arranged at the portion to prevent the deformation of a housing 10 due to the heating of a bulb in the lamp of a vehicle arranged with the resin housing 10 and the bulb arranged in the housing 10. The housing 10 has a groove 30 provided at the outer portion of the inner periphery 11 of the housing 10. The hook sections 38 of the heat resistant plate 16 are inserted into the groove 30 and mounted on reception sections 31, and the heat resistant plate 16 is fitted to the housing 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a heat-resistant plate of a vehicle lamp, and more particularly to a vehicle lamp provided with a resin housing and a valve arranged in the housing. The present invention relates to a heat-resistant plate mounting structure which is arranged at a portion where deformation is to be prevented.

[0002]

2. Description of the Related Art A vehicle lamp usually comprises a resin housing and a heating element bulb disposed in the housing. However, since the housing is made of resin, the housing is deformed by the heat generated by the bulb. To prevent this, a heat-resistant plate may be attached to the housing.
No. 03 bulletin). In this mounting structure, two L-shaped projections are projected from the inner peripheral surface of the housing toward the valve so that the grooves defined by the respective projections and the inner peripheral surface of the housing face each other, and the flat plate is formed in the two grooves. The heat-resistant plate of is inserted.

[0003]

In the above mounting structure,
When the protrusion supporting the heat-resistant plate protrudes from the inner peripheral surface of the housing toward the valve, since the protrusion itself is made of resin, the protrusion may be deformed due to heat generation of the valve.

An object of the present invention is to provide a mounting structure for a heat-resistant plate of a vehicle lamp which can enhance the effect of preventing the deformation of the housing due to the heat generation of the bulb.

[0005]

According to the present invention, in a lamp of a vehicle having a resin housing and a bulb arranged in the housing, the lamp is arranged in a portion where deformation of the housing due to heat generation of the bulb is to be prevented. The heat-resistant plate mounting structure according to claim 1, wherein the housing has a groove formed in a portion on the outer side of the inner peripheral surface of the housing, or a slit cut out from the inner peripheral surface of the housing. A plate is attached to the housing using the groove or slit.

[0006]

[Operation and effect] The heat resistant plate is attached at a predetermined position by using the groove or the slit. The groove for mounting the heat-resistant plate is provided on the outer side of the inner peripheral surface of the housing, that is, on the portion located farther from the valve with respect to the inner peripheral surface, and since the slit is cut out from the inner peripheral surface of the housing, The inner surface is closest to the valve. On the other hand, the heat-resistant plate covers the part of the housing that is most affected by the heat generated by the valve. Thereby, the deformation of the entire housing due to heat can be prevented.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 3, the mounting structure includes a resin housing 10 and a bulb 12 arranged in the housing 10. It is a mounting structure of the heat-resistant plate 16 arranged in a portion where deformation is to be prevented.

The housing 10 is a molded product made of resin, and in the embodiment shown in FIG. 3, it is a common housing for the lamps 14 arranged in two stages, upper and lower. That is, the housing 10 integrally comprises an upper housing part 18 and a lower housing part 19, in which the bulb 12 is arranged so that the upper lamp 14 and the lower housing part 19 are arranged. The lower lamp 14 is formed by disposing the bulb 12. The lamp 14 is
It comprises an inner lens 22 attached individually and an outer lens 24 commonly attached.

The heat-resistant plate 16 is made of a metal such as an iron plate, and is arranged so as to cover a portion where the housing 10 may be deformed due to heat generation of the valve 12. When the upper and lower housing parts are provided as in FIG. 3, substantially the same mounting structure can be adopted. Therefore, the following description simply refers to the housing 10 without distinguishing the upper and lower housing parts.

In the embodiment shown in FIG. 1, the housing 10
Has a groove 30 provided in a portion outside the inner peripheral surface 11 of the housing. The groove 30 extends in the front-rear direction of the vehicle from the side where the lens 22 is attached. Two receiving parts 3
1 and a covering portion 32 that is spaced outward from the inner peripheral surface 11 are extended from the mounting side of the lens 22 in the front-rear direction of the vehicle to a rear anti-slope portion 33 (FIG. 3) to form a groove 30. There is.

On the other hand, the heat-resistant plate 16 has a base 36 and a base 3.
6 is obtained by press-molding a plate material, which integrally has a suspension portion 37 rising from both side ends of 6 and a hooking portion 38 extending from each suspension portion 37 in a direction opposite to the base portion 36. When the heat-resistant plate 16 is fitted into the groove 30 from the mounting side of the lens 22, the hook portion 38 is placed on the receiving portion 31, and the heat-resistant plate 16 is supported.

In the embodiment shown in FIG. 2, the housing 10
Has a groove 40 provided in a portion outside the inner peripheral surface 11 of the housing. The groove 40 extends in the front-rear direction of the vehicle from the side where the lens 22 is attached. Two receiving parts 4
1 and a receiving portion 41 spaced from the inner peripheral surface 11 outward.
A covering portion 43 having a recessed portion 42 facing outward is formed to extend from the mounting side of the lens 22 in the vehicle front-rear direction to the rear anti-slope portion 33 to form a groove 40. Therefore, in this embodiment, the entire covering portion 43 except the recessed portion 42 is close to the inner peripheral surface 11.

In the embodiment shown in FIG. 2, the heat-resistant plate 16 has substantially the same structure as that of the embodiment shown in FIG. When the heat-resistant plate 16 is fitted into the groove 40 from the mounting side of the lens 22, each hook 38 enters the recess 42 and is placed on the receiving portion 41, and the heat-resistant plate 16 is supported.

In the embodiment shown in FIGS. 4 and 5, the housing 50 has an upper housing portion 52 and a lower housing portion 53, with a partition wall 54 separating the upper and lower housing portions 52, 53. Has been. In such a lamp 56, in particular, the distance of the lower housing part 53 from the bulb 12 is small. Therefore, two slits 58, which are notched from the inner peripheral surface 55 of the partition wall 54, are provided in the front-rear direction of the vehicle from the mounting side of the lens 60, and a heat-resistant plate 66 is mounted by using these slits 58, so that The deformation of the housing portion 53 can be prevented.

The heat-resistant plate 66 integrally has a base portion 68, suspension portions 69 rising from both ends of the base portion 68, and a hook portion 70 extending from each suspension portion 69 in the direction opposite to the base portion 68. The plate material was obtained by press molding.
When the heat-resistant plate 66 is fitted into the slit 58 from the mounting side of the lens 60, the hook 70 is placed on the partition wall 54, and the heat-resistant plate 66 is supported.

When the heat-resistant plates 16 and 66 are formed as in the illustrated embodiment, since there is no negative angle portion during press molding, the heat-resistant plates can be obtained by one press molding. In addition, in the case of the embodiment of FIG. 1, the heat-resistant plate may be formed of a flat plate.

[Brief description of drawings]

1 is a cross-sectional view of an embodiment of a heat-resistant plate mounting structure for a vehicle lamp according to the present invention, which is cut in the direction of line 1-1 in FIG.

FIG. 2 is a cross-sectional view of another embodiment of a heat-resistant plate mounting structure for a vehicle lamp according to the present invention, taken along line 1-1 of FIG.

FIG. 3 is a cross-sectional view of a lamp having a heat-resistant plate mounted according to the present invention, taken along a surface extending in the front-rear direction of the vehicle.

FIG. 4 is a perspective view of yet another embodiment of a mounting structure for a heat-resistant plate of a vehicle lamp according to the present invention.

5 is a cross-sectional view of a lamp to which the mounting structure shown in FIG. 4 can be adopted, taken along a plane extending in the front-rear direction of the vehicle.

[Explanation of symbols]

 10, 50 Housing 11, 55 Inner peripheral surface 12 Bulb 14, 56 Lamp 16, 66 Heat-resistant plate 30, 40 Groove 58 Slit

Claims (1)

[Claims] 1. A mounting structure of a heat-resistant plate, which is arranged at a portion where deformation of the housing due to heat generation of the bulb is to be prevented in a vehicle lamp including a resin housing and a bulb arranged in the housing. The housing has a groove provided in a portion on the outer side of the inner peripheral surface of the housing, or a slit cut out from the inner peripheral surface of the housing, and the heat-resistant plate uses the groove or the slit. A mounting structure for a heat-resistant plate of a vehicle lamp, which is then mounted on the housing.