Patent ID: 7649287
Filing Date: 2010-01-19
Classification: F16D

Abstract:
1. A motor-fastening mechanism for fastening an output shaft of a motor and an input shaft of a driven member to each other, comprising: a fastening section that fastens the output shaft of the motor and the input shaft of the driven member relatively immovably; a motor-attachment member that is attached to the motor; an engaged section that is provided on either one of the motor-attachment member and the driven member; and an engaging section that is provided on the other of the motor-attachment member and the driven member and that is engaged to the engaged section such that displacement of the output shaft in a rotating direction thereof is regulated; wherein either one of a contact surface of the engaging section that is in contact with the engaged section and a contact surface of the engaged section that is in contact with the engaging section is formed into a curved surface having a radius of curvature that depends on misalignment occurring on a fastened portion where the output shaft of the motor and the input shaft of the driven member are fastened to each other; and the other of the contact surface of the engaging section that is in contact with the engaged section and the contact surface of the engaged section that is in contact with the engaging section is formed as a flat surface.