Patent ID: 6339267
Filing Date: 2002-01-15
Classification: F04D,F16F,H02K

Abstract:
A motor apparatus comprising:a motor holder; a stator having a center piece that includes a fixing plate at one end thereof, the fixing plate being formed with a boss and the boss being held engaged with the motor holder; a rotor rotatably supported by the stator to be rotated when the stator is energized; and a cushion interposed between the motor holder and the boss, wherein the cushion is formed in generally a cylindrical shape to have an abutting surface on an inner peripheral surface for abutment with an outer peripheral surface of the boss and an annular groove on an outer peripheral surface for engagement with the motor holder, the inner abutting surface having an axial length shorter than an entire axial length of the cushion, wherein the motor holder is formed with a fixing hole in which the cushion is fit, wherein the cushion is fixedly held to the fixing plate by a holding plate in an axial direction, and wherein the fixing hole of the fixing plate is elongated in a circumferential direction of the rotor to have a length in the circumferential direction longer than that in a radial direction of the rotor.