Rattle noise reducing electric power steering column assembly and method
US11511786B2 · kind B2 · utility
1Cited by
0References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2020 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Mar 6, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric power steering assembly for a steering column includes a lower assist shaft defining a first bore. The assembly also includes a needle bearing at least partially disposed within the first bore. The assembly further includes an upper assist shaft assembly defining a second bore and having a journal surface at an end thereof. The assembly yet further includes a torsion bar having a first end disposed in the first bore and a second end disposed in the second bore, the torsion bar having a torsion bar run-out that forces the journal surface to remain in contact with an inner surface of the needle bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.