Electric motor assist type power steering apparatus
US6832662B2 · kind B2 · utility
3Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2003 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Oct 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19842
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electric power steering apparatus with an electric motor generating an assistant steering force for transmission to the steering system, a worm shaft rotated by the electric motor, a worm gear on the worm shaft that rotates therewith, a worm wheel rotated by the worm gear, a pinion shaft that rotates with the worm gear, supporting units that support both ends of the worm shaft so as to allow rotation thereof, and a distortion prevention unit that prevents distortion of the worm shaft. The supporting units may support the ends of the worm shaft without play.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.