Double ratchet, double pawl vehicular latch with soft stop on reset
US9512651B2 · kind B2 · utility
8Cited by
0References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2012 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Jan 26, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1046
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A low release effort eccentric double ratchet, double pawl vehicle latch includes a ratchet, a primary pawl, an auxiliary ratchet and a secondary pawl. A drive mechanism including a gear cam wheel sequences movement of the secondary pawl to open and reset the latch. Upon reset, the drive mechanism actuates the auxiliary ratchet back to a closed state in a soft manner without using a hard stop; instead the latch has a cushioning spring that is used to softly stop the gear train during the reset absorbing motor energy and thus eliminating impact noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.