US 6,161,951 A · Vehicular headlamp

Abstract

A vehicular headlamp including a discharge bulb which allows mounting of a lighting circuit case to a lamp body using a simple and inexpensive structure and which allows for easy removal of the lighting circuit case therefrom. Because it is disposed within the lamp body, the lighting circuit case need not have a full waterproof structure, and thus it can be formed as a simple, light-weight and inexpensive structure. The lamp body is composed of a main body having an opening and a cover for closing the opening. A mounting portion for the lighting circuit case is formed at a position closely adjacent the opening of the main body of the lamp body. As a result, the lighting circuit case can be easily removed through the opening.

Claims21

Dependent claims

A vehicular headlamp comprising:

a main body having an open front portion and a first opening formed in a rear portion of said main body and a second opening formed in a lower portion of said main body;
a reflector disposed within said main body;
a lens covering said open front portion;
a discharge bulb mounted on said reflector;
and
a lighting circuit unit comprising a lighting circuit case and a lighting circuit within said lighting circuit case for operating said discharge bulb;
wherein said lighting circuit case is mounted in a position within said main body adjacent said second opening, and wherein a removable cover is attached to said main body so as to close and seal said second opening.

4 more elements

A vehicular headlamp comprising:

a main body having an open front portion and an opening formed in a lower wall of said main body;
a reflector disposed within said main body;
a lens covering said open front portion;
a discharge bulb mounted on said reflector;
a lighting circuit unit comprising a lighting circuit case and a lighting circuit within said lighting circuit case for operating said discharge bulb;
a cover removably attached to said lower wall of said main body so as to close and seal said opening, wherein said lighting circuit case is mounted in a position within said main body adjacent said opening;
a mounting portion for mounting said lighting circuit case in said position, wherein said mounting portion is a recess in said cover;
and
a first plurality of ribs formed on said lower wall of said main body, said first plurality of ribs contacting said lighting circuit case on a first side thereof, and a second plurality of ribs formed on a wall of said cover, said second plurality of ribs contacting a second side of said lighting circuit case opposite said first side.

6 more elements

Dependencies are inferred from the claim text.

Vehicular headlamp

Life of this patent

Vehicular headlamp

Life of this patent

Abstract

Claims21