Patent ID: 6719103
Filing Date: 2004-04-13
Classification: F16D

Abstract:
Actuator (5), comprising a housing (4) with a motor (6) and a screw mechanism (9), said screw mechanism (9) comprising a nut (10) and a screw (11) one of which is rotatably supported with respect to the housing (4) by means of a screw mechanism support (13) allowing relative rotations of the screw (11) and the nut (10) with respect to the longitudinal screw mechanism axis (28), and an actuating member (15), connected to the screw mechanism (9) by means of an actuating member connection (26), such that on relative rotation of the nut (10) and screw (11) the actuating member (15) is linearly displaced with respect to the housing (4), characterised in that the screw mechanism support (13) and the actuating member connection (26) comprises ball swivels (14, 15) having at least one rotation axis transverse with respect to the longitudinal screw mechanism axis (28), and in that the motor (6) is supported with respect to the housing (4) through the screw mechanism support (13), said ball swivel (14) of the screw mechanism support (13) comprising a ball (14) and a cap (15) accommodating said ball (14), said cap (15) supporting the nut (10) rotatably through a support bearing.