Telescopic actuator with a main rod and an auxiliary rod, and method applying said actuator

摘要

The actuator has a cylinder (1) defining a cavity in which a main rod (2) is mounted, and an auxiliary rod (20) mounted to slide telescopically in the main rod along a sliding axis between retracted and an extended positions. A controlled retaining unit retains the rod (20) in the retracted position inside the main rod and includes a catch (30). The unit has a step (31) provided at an end of the rod (20) and a locking sleeve (32) axially displaceable by an unlocking motor (33) from locking position and release position. An independent claim is also included for a method of using an actuator.