Vehicle steering geometry checking arrangement - has tubular rule inside which beam is projected onto unitary mirror which is articulated or movable for deflection onto screen

摘要

This apparatus is used to verify and adjust the steering geometry of the wheels on a vehicle, and is designed such that the wheels can be swung by 20 deg. when the vehicle is on a car lift, without the apparatus being inconvenienced by parts of the car lift. The appts. contains two devices fixed onto two opposite wheels. Each device includes a hollow rod. This rod contains a light source and is terminated by a mirror which sends the light onto a screen on the other device. The mirror is articulated or removable such that it either reflects the light or allows it to pass through a hole. The part which checks the pivot, caster and camber angles is mounted normally w.r.t. the rod's axis.