Open locking fixture, for automotive spring-loaded pulley arm, has arm with locking fitting which allows arm and wheel to be held open against spring action

摘要

An automotive piston engine has a pulley belt running around a series of pulley wheels and held taut by a further pulley wheel (8) mounted on a spring-loaded arm (6). The arm has a locking fitting which allows the arm and wheel to be held open against the spring action.