VIBRATOR UNIT FOR TESTING A MOTOR VEHICLE FOR RATTLES AND SQUEAKS

摘要

A vibrator unit for detecting rattles and squeaks in selected parts of a motor vehicle; the detector having a cylinder in which a piston is pneumatically reciprocable to develop vibrations in the cylinder. An adjustable clamp is mounted upon the cylinder for detachably clamping the cylinder to a selected part of a motor vehicle so as to transmit the vibrations of the cylinder to the part and general area. A live air supply hose line having a pressure regulator therein is connected to an inlet of the cylinder; the regulator being manually operable to selectively vary the pressure of operating air flow to the cylinder and as a consequence varying the operating frequency of the piston; and the hose line being lengthy so as to permit operation of the regulator at distances remote from the cylinder. A noise muffler is connected by a hose line to an exhaust port of the cylinder to obtain a quiet environment for better discerning sounds of rattles and squeaks.