Motor with urging member comprising a flat spring
AssigneeNidec Sankyo Corporation
InventorTakeshi Shimoyama
Life of this patent
Estimating the term…
Abstract
A motor may include a rotor having a rotation shaft, a stator disposed on an outer peripheral side of the rotor, a frame fixed to the stator, and an urging member made of metal for urging an end part on an output side of the rotation shaft to an opposite-to-output side. The frame includes a bottom face part, a stator fixing part which is formed to be bent from the bottom face part and which is fixed to the stator, and a shaft support part which is formed to be bent from the bottom face part so as to face the stator fixing part and which supports the end part on the output side of the rotation shaft, and the urging member is fixed by welding to an output side face which is a face on an output side of the shaft support part. The urging member is preferably a flat spring.
Claims12
A motor having resistance to impacts comprising:
- a rotor having a rotation shaft;
- a stator which is disposed on an outer peripheral side of the rotor;
- a frame which is fixed to the stator;
- and
- an urging member made of metal for urging an end part on an output side of the rotation shaft to an opposite-to-output side;
- wherein the frame comprises:
- a bottom face part;
- a stator fixing part which orientated in a bent shape relative to the bottom face part and which is fixed to the stator;
- and
- a shaft support part which is orientated in a bent shape relative to the bottom face part so as to face the stator fixing part and which supports the end part on the output side of the rotation shaft;
- and
- wherein the urging member is structurally fixed by a weld to an output side face which is a face on an output side of the shaft support part;
- wherein the urging member is a flat spring which is provided with a bearing abutting part for urging the end part on the output side of the rotation shaft to the opposite-to-output side and a flat face part having a welded part that is fixed to the output side face of the shaft support part;
- and
- wherein the welded part which fixes the flat face part of the flat spring to the output side face is formed at both side positions in a root portion of the bearing abutting part.
Dependencies are inferred from the claim text.