Wave washer, rotary shaft supporting device including the wave washer, and electric motor including the rotary shaft supporting device
US8998189B2 · kind B2 · utility
2Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2013 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jul 19, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2380/27
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A wave washer is used for a shaft supporting device of an electric power steering system. The wave washer has an annular portion and six outward protrusions. The annular portion has first protrusions that protrude in a first axial direction and second protrusions that are formed so as to continuous with the first protrusions and that protrude in a second axial direction. Each outward protrusion protrudes from an outer periphery of the annular portion in a radially outward direction of the radial direction of the annular portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.