Linear actuator, e.g. for kitchen fan, or hospital bed, has motor, reduction gear, transmitting device and actuating element enclosed in sleeve

摘要

An actuating element (40) has a spindle (42) and nut (43) for moving an actuator connected to the nut. A transmitting device (30) increases the power output from a motor (13) and reduction gear and transmits the torque to the actuating element. The motor, reduction gear, transmitting device and actuating element are enclosed in a sleeve (20) to reduce the volume of the linear actuator. The sleeve receives axial force, so that the transmitting device can transmit the torque efficiently.