Servo with return spring for a gear change

摘要

Described herein is a servo (1) for a gear change provided with a control shaft (2); the servo (1) is provided with: a first actuator (5), which is directly coupled to the control shaft (2) for displacing the control shaft (2) axially along a central axis (3) thereof; and a second actuator, which is coupled to the control shaft (2) for rotating the control shaft (2) about its central axis (3); the first actuator (5) has: a thrust device (6), which is coupled to the control shaft (2) for pushing the control shaft (2) along the central axis (3) in a first direction (8); and a spring (7), which rests against one end (9) of the control shaft (2) and is normally compressed for pushing the control shaft (2) along the central axis (3) in a second direction (10) opposite to the first direction (8).