Absolute encoder
AssigneeMINEBEA MITSUMI Inc.
InventorsKatsunori Saito, Takeshi Sakieda
Life of this patent
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Abstract
To suppress deterioration in the detection accuracy of a rotation angle of a magnet even when a member located in the vicinity of the magnet is made of a magnetic material. An absolute encoder includes a first sub-shaft gear configured to rotate based on rotation of a main shaft, a bearing part configured to rotatably support the first sub-shaft gear around an axial line A, a support shaft configured to support the bearing part, and a spacer provided between the first sub-shaft gear and the bearing part. At least a part of the spacer is formed of a magnetic material, and the spacer is formed extending in a direction intersecting the axial line A.
Claims7
An absolute encoder comprising:
- a sub-shaft gear configured to rotate based on rotation of a main shaft;
- a bearing part configured to rotatably support the sub-shaft gear around an axial line;
- a shaft part configured to support the bearing part;
- and
- a spacer provided between the sub-shaft gear and the bearing part, wherein
- at least a part of the spacer is formed of a magnetic material, and
- the spacer is formed extending in a direction intersecting the axial line.
Dependencies are inferred from the claim text.