Aiming mechanism for automotive lamp

Abstract

An aiming mechanism for a automotive lamp in which play is prevented from developing between a nut, threadedly engaged with an aiming screw, and a nut insertion hole formed in a lamp housing. The aiming screw is connected at its front end to a connecting portion of a lamp unit in a manner so as to allow relative pivotal movement therebetween. The aiming screw is threadedly engaged with a nut made of a synthetic resin mounted in a nut insertion hole in a lamp housing also made of a synthetic resin, and extends through the lamp housing in a direction generally parallel to an axis of the lamp housing. When the aiming screw is turned, the aiming screw is moved back and forth relative to the lamp housing to tilt the lamp unit. The nut is fixedly secured to the lamp housing by mounting screws, and a peripheral sleeve extends from the surface of the lamp housing which defines the peripheral edge portion of the nut insertion hole, and faces away from that surface of the lamp housing to which the mounting screws are fixedly secured, the peripheral sleeve embracing the nut. The peripheral sleeve increases the area of support of the nut by the nut insertion hole in the direction in which the aiming screw extends, so that the amount of shaking of the nut and the aiming screw in the nut insertion hole is reduced.