Non-jamming self-adjust pawl and ratchet mechanism
US5467666A · kind A · utility
13Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1994 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Jul 7, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/214
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved non-jamming self-adjust pawl and ratchet mechanism for use in an automotive parking brake system or the like, includes cam-out and cam-in devices that are spaced to define an overlap dwell distance to insure suitable engagement between the adjuster pawl and the adjuster ratchet as a foot or hand brake operating lever is pivoted from a brake disengaged position toward a brake fully-engaged position. In the case of the foot-operated lever, the spacing distance between the cam-out and cam-in devices is greater than the bounce-back travel distance of the lever upon the removal of cable tension load thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.