Patent ID: 7863790

Claim:
A motor comprising: a rotor including a permanent magnet which is fixed to an outer periphery of a rotor shaft; a fixed body including a ring-shaped stator which faces an outer peripheral face of the permanent magnet through a gap space; a bearing which supports a shaft end on a base end side of the rotor shaft; an urging member which is mounted on the fixed body on a base end side in an axial line direction of the motor for urging the bearing to a tip end side in the axial line direction of the motor; a pair of engaging grooves which are formed on both side face parts opposite to each other of the fixed body so as to extend in a direction crossing the axial line direction of the motor at positions apart from an end face on a base end side of the fixed body with a predetermined distance in the axial line direction of the motor, and whose open ends are directed in a same direction; wherein the urging member comprises: a bottom face part provided with a spring part for urging the bearing; a pair of side plate parts which are bent from respective opposite edge parts of the bottom face part; and a pair of hook parts which are bent from respective tip ends of a pair of the side plate parts; wherein, when the urging member is to be mounted on the fixed body, the urging member is slid in the direction crossing the axial line direction of the motor so that the bottom face part of the urging member is superposed on the end face on the base end side of the fixed body and a pair of the hook parts are inserted from the open ends into a pair of the engaging grooves to be engaged with a pair of the engaging grooves, and wherein, when an outward force in the axial line direction of the motor which is to cause the urging member to be separated from the fixed body is applied to the urging member in a state that the urging member has been mounted on the fixed body, the hook parts abut with an inner wall of the engaging grooves which is located on the tip end side in the axial line direction of the motor to prevent the hook parts from being disengaged from the engaging grooves, a protruded part for coming-off prevention of the urging member which is continuously formed in one of the hook part and the engaging groove; and a recessed part which is continuously formed in the other of the hook part and the engaging groove so as to be fitted to the protruded part for locking the protruded part.