Motor shaft, motor and motor assembly
US10396623B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2018 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Oct 24, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D1/072
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.