Patent ID: 9664267
Date: 2017-05-30
CPC Classifications: F16D,F16H,Y10T

Claim:
1. A linear actuator comprising: a motor having an output shaft for producing a bi-directional rotational output; a casing connected to the motor at a proximal end, the casing having an inner cavity defining a joint surface; a threaded shaft within the inner cavity of the casing; at least one bearing within the inner cavity and adjacent to the proximal end of the casing; a coupling assembly for coupling the output shaft of the motor to the threaded shaft, the coupling assembly having at least a first coupling component receiving the rotational output from the motor, and at least a second coupling component coupled to the first coupling component for transmission of the rotational output to the threaded shaft, a substantial portion of a coupling between the first and the second coupling components being in an axial section of the linear actuator delimited by a proximal surface and a distal surface of the at least one bearing; a sliding tube in sliding arrangement with the inner cavity of the casing for moving in translation relative to the casing; and a traveling nut connected to the sliding tube for moving therewith, the traveling nut being operatively engaged to the threaded shaft for converting a rotational motion of the threaded shaft into a translation of the sliding tube.