Motor shaft, motor and motor assembly
AssigneeMinebea Co., Ltd.
InventorsMakoto OTSUKA, Yutaka KAMOGI, Jun OHMURA
Life of this patent
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Abstract
A motor includes: a motor shaft including a press-fitting surface; and a first annular projection group and a second annular projection group formed in the press-fitting surface of the motor shaft. The first annular projection group and the second annular projection group are separated from each other in an axial direction, a distance between an adjacent two of annular projections in the first annular projection group and a distance between an adjacent two of annular projections in the second annular projection group are smaller than a distance between the first annular projection group and the second annular projection group in the axial direction.
Claims9
A motor comprising:
- a motor shaft including a press-fitting surface;
- and
- a first annular projection group and a second annular projection group formed in the press-fitting surface of the motor shaft,
- wherein the first annular projection group and the second annular projection group are separated from each other in an axial direction, a distance between an adjacent two of annular projections in the first annular projection group and a distance between an adjacent two of annular projections in the second annular projection group are smaller than a distance between the first annular projection group and the second annular projection group in the axial direction.
A motor assembly comprising:
- a motor shaft including a press-fitting surface;
- and
- a first annular projection group and a second annular projection group formed in the press-fitting surface of the motor shaft,
- wherein the first annular projection group and the second annular projection group are separated from each other in an axial direction,
- a distance between an adjacent two of annular projections in the first annular projection group and a distance between an adjacent two of annular projections in the second annular projection group are smaller than a distance between the first annular projection group and the second annular projection group in the axial direction.
Dependencies are inferred from the claim text.