Abstract: A plastic housing has two halves which enclose a vertical cam which is threadedly engaged with an adjustable stud and a horizontal cam which extends beyond the housing to engage with a headlamp assembly. The vertical cam has inclined grooves which receive teeth protruding from the horizontal cam therein. Hence adjustment of the vertical stud results in linear motion of the horizontal stud. Each housing half has an inclined sidewall which engages against an inclined face of the vertical cam. By tightening the fasteners which extend through both housing halves into a fixed vehicle frame part, the housing halves are brought closer together to apply a force to the vertical cam to bring it into correct engagement of the horizontal cam. This adjustment allows slip-free adjustment of the headlamp despite variations in part dimensions of the mechanism.

Abstract: A mechanism for adjusting either the vertical or side-to-side tilt of a vehicle headlamp assembly of the type having two replaceable bulbs in a single housing. The adjusting mechanism comprises a housing, a horizontally movable cam mounted in the housing and operable to adjust the headlamp when shifted linearly back and forth, and a vertically movable cam adapted to be actuated by a screw and operable to shift the horizontally movable cam back and forth.