Clipped on marker for use with adjustment linkage for a vehicle headlamp

摘要

An marker for an adjustment linkage for vehicle headlamp may be made from a cover holding a marker gear having an internal gearing. The cover includes a pivot point, and a snap hole that clips over a bolt head on a rotatable link. The cover is then clipped to the bolt head but can pivot the bolt head between two positions. A marker gear with an internal gear is meshed to the linkage gear, while being held by the cover. The marker may then be zeroed when in a disengaged state, and pivoted to engage the adjustment linkage and thereby register degree changes when the adjustment linkage is rotated. The adjustment linkage is designed to be operated by a Philipshead screwdriver used as a gearing. No permanent gear box is formed in the linkage. A minimal linkage is formed that is accessible from the top of the headlamp module by the length of the screw driver. The adjustment linkage is water sealed to accommodate rotation and pivoting of the linkage.