Ultra-compact power length adjuster with anti-back drive capability and pinion-rack output for a vehicle seat
US11760233B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | May 15, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/0825
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat adjuster drive including a stationary track that is fixed to a vehicle and a sliding track that is arranged in sliding engagement with the stationary track for movement fore and aft. A gear box, mounted to the sliding track, supports a pinion that is part of a rack and pinion drive assembly. The gear box houses a conical spiral gear set and one or more planetary gear sets. The conical spiral gear set includes a conical pinion gear that is coupled to an electric motor and a conical spiral gear that is arranged in meshing engagement with the conical pinion gear. The conical spiral gear is carried on the pinion in a sliding fit. The one or more planetary gear sets rotatably couple the conical spiral gear and the pinion through a gear reduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.