Headlamp for a motor vehicle

Details Headlamp for a motor vehicle Headlamp for a motor vehicle

1994-06-01

1996-01-30

Lazarus, Ira S.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362 61, B60Q 104

Patent

active

054885477

ABSTRACT:
A headlamp for a motor vehicle with a linear bubble tube type level vial 60 for detecting a vertical inclination of a vial 60 in which the reflector 14 is supported so as to be tiltable with respect to a lamp body 10 within a lamp chamber S defined by the lamp body 10 and a front lens 12, and the vial 60 contains a linear bubble tube 64 substantially horizontally and longitudinally disposed, characterized in that the level vial 60 is extended rearward from the rear wall of the reflector 14, whereby the level vial 60 is located apart from a heat source (bulb 16), thereby impeding the transfer of the heat to the linear bubble tube 64 of the level vial 60. A rear expanded portion 11 enclosing the level vial 60 is additionally formed to the lamp body 10, without increasing the size of the whole lamp body 10 in connection with the level vial 60. With this unique structure, the increase of the size of the lamp body 10 is not so much. Further, an air hole 76 allowing air to flow to and from the lamp chamber is formed in the rear expanded portion 11. With provision of the air hole, a negligible amount of heat stays around the level vial 60 within the rear expanded portion 11.

REFERENCES:
patent: 5050048 (1991-09-01), Hendrischk et al.
patent: 5055980 (1991-10-01), Mochizuki
patent: 5083244 (1992-01-01), Shirai et al.
patent: 5140503 (1992-08-01), Lisak
patent: 5317486 (1994-05-01), Schmitt

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