Patent ID: 6452296
Filing Date: 2002-09-17
Classification: E05F,E05Y,F16H

Abstract:
A motor device comprising:a motor; a gear housing, which is fixed to the motor, being provided in a center thereof with a bearing, a wheel, which is housed in the gear housing and driven to rotate around the bearing by the motor, being provided on a surface thereof perpendicular to a center axis of the bearing with a recess; a damper housed in the recess to rotate together with the wheel; an output plate having a flat surface, which is engaged with the damper to rotate via the damper together with the wheel, being integrally provided in a center thereof with a linking portion axially extending by a length longer than thickness of the flat surface, the linking portion being formed in shape of a composite pipe having inside and outside walls which are folded down, the outside wall extending to protrude out of the flat surface in one direction and the inside wall, which is formed in cylindrical shape, extending through an inside of the outside wall perpendicularly to the flat surface in a direction opposite to that of the outside wall, wherein the inside wall has a shaft receiving hole with a plurality of engagement surfaces extending axially for receiving circumferential force; and an output shaft, which is rotatably held in the bearing, being provided at an axial end thereof with a shaft inserting portion fitted to the shaft receiving hole, wherein the output shaft penetrates the wheel and the damper and is connected to the output plate so as to rotate together therewith in a state that an axial length of the shaft inserting portion in contact with each of the engagement surfaces is longer than the thickness of the flat surface.