Patent ID: 6386339
Filing Date: 2002-05-14
Classification: F16D

Abstract:
An automatic adjuster for spring applied mechanism of the type wherein travel of an actuating member under spring pressure may vary depending upon component wear, the automatic adjuster comprising:a piston movable by force application from spring pressure in one direction to apply a desired force and by other actuating means in the opposite direction to remove the desired force; a pushrod movable by and with the piston; lock actuator operable between the piston and the pushrod arranged to provide positive movement of the pushrod with the piston in said one direction of force application from spring pressure while allowing relative movement between the piston and the pushrod during movement of the piston in the opposite direction; and a further lock actuator, including an offset collar mounted on, and offset with respect to said pushrod, operable to releasably engage or contact, and thus being operable between, the pushrod and a housing for the piston, respectively, the further lock actuator being arranged to control movement of the pushrod between predetermined limits during retraction of the pushrod.