Patent ID: 7990003
Filing Date: 2011-08-02
Classification: B60G,H02K,Y10T

Abstract:
1. A telescopic actuator comprising: a motor comprising a rotation shaft, a yoke, and a bearing holder supporting the rotation shaft, the yoke and the bearing holder forming an outer shape of the motor; a reduction gear which engages with the rotation shaft to decelerate an output rotation of the rotation shaft; a feed screw mechanism comprising a male screw member and a female screw member which are relatively rotated by an output rotation of the reduction gear; a first housing accommodating the motor to form a first sub-assembly such that an inner peripheral surface of the first housing surrounds an entire outer peripheral surface of the yoke; a second housing accommodating the reduction gear and the feed screw mechanism to form a second sub-assembly, being detachably attached to the first housing, and a bolt penetrating the bearing holder and the yoke to fasten the bearing holder and the yoke to the first housing, wherein the first sub-assembly and the second sub-assembly are detachably attached together such that, when the first housing and the second housing are detached from each other, the rotation shaft of the motor and the reduction gear are disengaged from each other while keeping the bearing holder and the yoke fastened to the first housing.