Reclining device incorporation by reference
US7678007B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2006 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Apr 4, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a reclining device that includes an external teeth gear and an internal teeth gear and in which the rotation axis of one of the external teeth gear and the internal teeth gear revolves around the rotation axis of the other. The present invention aims to provide a reclining device of which the operation force is small and the operation force varies little. To achieve the aim, one of (a) the plane of each of the external teeth 31b that engages with the internal teeth 32b and (b) the plane of each of the internal teeth 32b that engages with the external teeth 31b is arranged to be flat, and the other of (a) and (b) is arranged to be convex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.