JPH09320309A - Vehicular lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To less develop a deterioration in the quality of an elastic member for sealing a gap between a lens and a reflector. SOLUTION: A bulb 32 is fixed to a head lamp 23 at inside the central part of a reflector 24. Rotating a bolt (20) 22 fluctuates the reflector 24 with a pin 30 at its spherical head centered, resulting in optical axis adjustment. A head lamp packing 34 is disposed on the outer pheripheral part 24D of the opening part of the reflector 24. A swelling part 38 is formed on the outer peripheral part of the opening part of the lens 36. The swelling part 38 is bent outside the head lamp packing 34 for swelling. The inside curved face 38A inclined against the outer peripheral part 24D of the reflector 24 presses the head lamp packing 34 against the outer peripheral part 24D of the reflector 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle lamp,
In particular, it relates to a vehicular lamp such as an automobile headlamp.

[0002]

2. Description of the Related Art Heretofore, a structure shown in Japanese Utility Model Laid-Open No. 63-294602 has been known as an example of a vehicle lamp such as an automobile headlamp.

As shown in FIG. 6, in this vehicular lamp, the reflector 70 and the lens 72 are connected by a bellows-like elastic member 74, so that the reflector 70 with respect to the lens 72 is adjusted when the optical axis is adjusted. The relative movement amount is absorbed by the deformation of the elastic member 74, and the gap 76 between the lens 72 and the reflector 70 is sealed.

[0004]

However, in this vehicular lamp, since the radiant heat of the bulb 78 directly acts on the elastic member 74 through the gap 76 between the lens 72 and the reflector 70, the elastic member 74 is heated by the heat. Material deterioration is likely to occur.

In view of the above facts, an object of the present invention is to provide a vehicular lamp in which the deterioration of the material of the elastic member that seals the gap between the lens and the reflector is unlikely to occur.

[0006]

According to a first aspect of the present invention, a reflector is swingably mounted on a vehicle body for adjusting an optical axis of light emitted from a bulb, and the reflector is fixed to the vehicle body. A lens that has a bulging portion that bulges in the outer peripheral direction according to the amount of rocking of the reflector when adjusting the optical axis, and that is fitted to the reflector at the bulging portion, and is provided on the outer peripheral portion of the reflector. And an elastic member that seals a gap between the reflector and the lens by an elastic force when the reflector and the lens are fitted to each other.

Therefore, since the elastic member for sealing the gap between the lens and the reflector is located on the back side of the reflector with respect to the bulb, the radiant heat of the bulb does not directly act on the elastic member.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a vehicular lamp according to the present invention will be described with reference to FIGS.

In the figure, an arrow FR indicates a vehicle front direction, an arrow UP indicates a vehicle upward direction, and an arrow IN indicates a vehicle width direction inner side direction.

As shown in FIG. 3, in the present embodiment, a radiator support upper member 10 is arranged above the front end of the vehicle body in the vehicle width direction, and a front wall portion 10A of the radiator support upper member 10 is provided. Rectangular mounting holes 12 and 14 are formed near both ends in the vehicle width direction. These mounting holes 12 and 14 are provided at predetermined intervals along the vehicle width direction, and nuts 16 and 18 are fitted in the mounting holes 12 and 14, respectively.

Bolts 20 and 22 are respectively screwed into the nuts 16 and 18 from the front of the vehicle. These bolts 20 and 22 are attached to a pair of mounting portions 24A and 24B projecting upward on the upper outer periphery of the reflector 24 of the headlamp 23 as a vehicle lamp,
The through holes 26 and 28, which are respectively drilled, pass through.

A bearing portion 2 having a hemispherical concave portion formed on a rear end surface thereof is formed on a vehicle width direction outer side portion of a lower outer peripheral portion of the reflector 24.
4C is projected toward the rear of the vehicle.
A spherical head portion 30A of a pin 30, which serves as a fulcrum for adjusting the optical axis provided on the radiator support 29, is rotatably inserted in the recess of 4C. A valve 32 is fixed to the center of the inside of the reflector 24.
By rotating 0 and 22, the reflector 24 swings around the spherical head portion 30A of the pin 30 so that the optical axis can be adjusted.

The opening of the reflector 24 faces the front side of the vehicle, and the outer peripheral portion 24D of the opening has a headlamp packing 3 made of, for example, a rubber material as an elastic member.
4 are provided. The headlamp packing 34 has a strip shape and surrounds the outer peripheral portion 24D.
4D has a pair of front and rear convex portions 35 that prevent the headlamp packing 34 from being displaced.

A lens 36 is arranged on the front side of the reflector 24 in the vehicle.
Covering the opening. The opening of the lens 36 faces the rear side of the vehicle, and a bulge 38 is formed on the outer periphery of the opening.

As shown in FIG. 1, the bulging portion 38 of the lens 36 is curved and bulges outward of the headlamp packing 34, and an inner curved surface 38A inclined with respect to the outer peripheral portion 24D of the reflector 24. Thus, the headlamp packing 34 is pressed against the outer peripheral portion 24D of the reflector 24.

Therefore, the reflector 24 and the lens 36
In the state in which and are fitted, the cross-sectional shape of the headlamp packing 34 is elastically deformed from the shape of the two-dot chain line in FIG. 2 to the shape of the solid line in FIG. The bulging amount of the bulging portion 38 of the lens 36 is set according to the maximum swing amount of the reflector 24 when adjusting the optical axis.

As shown in FIG. 1, in the bulging portion 38B on the lower side of the lens 36, the outer peripheral portion 24D of the reflector 24 slightly projects toward the bulging portion 38B in consideration of the adhesion of the headlamp packing 34. ing.

As shown in FIG. 3, a mounting portion 40 is formed at the vehicle width direction outer upper end portion of the bulging portion 38 of the lens 36 toward the rear of the vehicle.
2 are drilled. A bolt 44 is inserted into the through hole 42, and the lens 36 is secured by the bolt 44.
The tip end portions of the mounting portion 40 and the fender 46 are fastened together to the outer upper portion of the radiator support upper member 10 in the vehicle width direction.

A mounting portion 48 is formed on the lower end of the bulging portion 38 of the lens 36 in the vehicle width direction toward the outside in the vehicle width direction, and a through hole 50 is formed in the mounting portion 48. There is. Bolts 52 are inserted into the through holes 50,
The mounting portion 48 of the lens 36 is
The radiator support 29 is fixed to a mounting hole 56 formed at a lower portion in the vehicle width direction outer side. Further, a mounting portion 58 is formed on an inner side in the vehicle width direction of the bulging portion 38 of the lens 36, and a through hole 60 is formed in the mounting portion 58. The bolt 6 is inserted in the through hole 60.
2 is inserted, and the mounting portion 58 of the lens 36 is fixed to the mounting hole 64 formed in the vehicle width direction inner side portion of the radiator support 29 by the bolt 62.

Next, the operation of the present embodiment will be described. In this embodiment, when at least one of the bolt 20 and the bolt 22 is rotated when the optical axis is adjusted, the headlamp 23
The reflector 24 swings with respect to the lens 36 about the spherical head portion 30A of the pin 30.

At this time, the bulging portion 38 of the lens 36 is curved and bulges outward of the headlamp packing 34,
Due to the inner curved surface 38A, the headlamp packing 3
4 is pressed by the outer peripheral portion 24D of the reflector 24 and elastically deformed. Therefore, even if the outer peripheral portion 24D of the reflector 24 moves with respect to the bulging portion 38 of the lens 36,
The headlamp packing 34 allows the reflector 24
The gap between the lens and the lens 36 is sealed.

Further, in this embodiment, the reflector 24
Since the headlamp packing 34 for sealing the gap between the lens 36 and the lens 36 is provided on the outer peripheral portion 24D of the reflector 24,
Since the headlamp packing 34 is on the back side of the reflector 24 with respect to the bulb 32, the headlamp packing 34 is not directly affected by the radiant heat of the bulb 32.
It is difficult for the material to deteriorate.

Further, in this embodiment, the lens 36 is fixed to the vehicle body side, and the reflector 24 is swung with respect to the lens 36 to adjust the optical axis, so that the lens 36 can be easily attached to the vehicle body. Become. In addition, the bulging portion 38 provided on the lens 36 makes the gap between the lens 36 and the vehicle body inconspicuous and improves the appearance.

Further, in the present embodiment, the reflector 24
The curved surface 3 of the swelling portion 38 inclined with respect to the outer peripheral portion 24D of the
The headlamp packing 34 is pressed against the outer peripheral portion 24D of the reflector 24 by 8A. Therefore, the adhesion between the headlamp packing 34 and the bulging portion 38 of the lens 36 is improved, and the sealing property inside the headlamp 23 is improved. Further, since the contact area between the headlamp packing 34 and the bulging portion 38 of the lens 36 is smaller than that in the case where the bulging portion 38 is parallel to the outer peripheral portion 24D of the reflector 24, the headlamp packing 34 reduces the contact area. ,
The stress acting on the bulging portion 38 of the lens 36 becomes small,
It is possible to prevent the lens 36 from cracking due to this stress.

In the above, the present invention has been described in detail with respect to a specific embodiment. However, the present invention is not limited to such an embodiment, and various other embodiments are included in the scope of the present invention. It is clear to a person skilled in the art that is possible. For example, the vehicular lamp of the present invention can be applied to a headlamp integrated with a front turn with the same seal structure for the front turn. Further, as shown in FIG. 4, the headlamp lens 36 and the front turn 6
The present invention can also be applied to a headlamp in which 6 and the grill 68 are integrated. In this case, as shown in FIG. 5, the connecting portion 69 between the lens 36 and the grill 68 does not include a connecting member or the like that is required when the lens and the grill are separate bodies, so that the grill 68 is The opening width (arrow W in FIG. 5) can be widened, and the cooling performance of the grill 68 can be improved.

[0026]

According to the present invention as set forth in claim 1, a reflector swingably attached to the vehicle body for adjusting the optical axis of the light emitted from the bulb, and an optical axis adjustment fixed to the vehicle body. A lens that has a bulging portion that bulges in the outer peripheral direction according to the amount of swinging of the reflector at the time, and the lens that fits with the reflector at the bulging portion is provided on the outer peripheral portion of the reflector, and the reflector and the lens fit together. In this case, since the elastic member that seals the gap between the reflector and the lens by the elastic force is provided, the deterioration of the material of the elastic member that seals the gap between the lens and the reflector is unlikely to occur. Have an effect.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a vehicle lamp according to an embodiment of the present invention.

FIG. 2 is an enlarged side sectional view showing a part of the vehicular lamp according to the embodiment of the present invention.

FIG. 3 is an exploded perspective view of the vehicle lighting device according to the exemplary embodiment of the present invention, as viewed from a vehicle front diagonally front side.

FIG. 4 is an exploded perspective view of a vehicular lamp according to another exemplary embodiment of the present invention as seen from a vehicle outer side obliquely front side.

FIG. 5 is an enlarged plan sectional view showing a part of a vehicular lamp according to another embodiment of the present invention.

FIG. 6 is a side sectional view showing a vehicle lamp according to a conventional embodiment.

[Explanation of symbols]

 23 Head Lamp (Vehicle Lighting) 24 Reflector 32 Bulb 34 Head Lamp Packing (Elastic Member) 36 Lens 38 Lens Swelling Part

Claims (1)

[Claims] 1. A reflector that is swingably attached to a vehicle body for adjusting an optical axis of light emitted from a bulb, and a reflector that is fixed to the vehicle body and that corresponds to an amount of swing of the reflector when the optical axis is adjusted. Has a bulge that bulges in the outer peripheral direction,
A lens that fits into the reflector at the bulging portion and an outer peripheral portion of the reflector that seals a gap between the reflector and the lens by elastic force when the reflector and the lens fit together. An elastic member, and a vehicle lamp.