Headlight for motor vehicle

In a headlight for a motor vehicle of the movable unit type in which a headlight body and reflector unit constituted by a mutually integrated body and reflector of said headlight is supported in a headlight housing in such a manner that said unit can be swung about a vertical axis and about a horizontal axis, an aiming device for measuring the aiming angle of said unit about said vertical axis provided between said housing and said unit comprising:

• a tubular fixed holder, a tubular movable holder, a spring disposed in said movable holder, a slider, and a movable holder position adjusting screw, said fixed holder being secured to said housing and extending in the front-to-rear direction of said headlight, said movable holder being inserted in said fixed holder and projecting at a tip of said movable holder forward from said fixed holder, said slider being inserted in said movable holder and being pushed by said spring disposed in said movable holder so that a tip of said slider projects forward from said movable holder and is kept in contact with a rear surface of said unit, whereby said slider slides backward and forward in conjunction with the aiming angle of said unit about said vertical axis, said screw being rotatably supported by said fixed holder, said screw having a male threaded tip portion disposed in said fixed holder, said screw being threadedly engaged in a tapped hole in said movable holder, and said screw having a rear end portion projecting backward from said fixed holder and having a turning manipulation part behind said fixed holder, a portion of said movable holder which projects forward from said fixed holder having a longitudinal slot formed therein, an index being provided on said portion of said movable holder at the side of said slot, and another index being provided on a portion of said slider exposed in said slot, the aiming angle of said unit about said vertical axis being indicated by an amount of offset between said indices.