Ratchet gear for the driving hub of a bicycle
US4363390A · kind A · utility
22Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1980 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Oct 22, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2137
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ratchet gear, particularly for driving hubs of bicycles, having a pawl mounted in a pawl carrier without the use of bolts. The head of the pawl is provided with a securing surface which, even when the pawls occupy the engaged position, is situated opposite an intercepting surface of the pawl carrier, in the peripheral direction about the pivot, so that the partly cylindrical bearing foot of the pawl cannot be moved out of the partly cylindrical bearing bushing to any great extent and it is impossible for the head of the pawl to become jammed between the pawl carrier and the gear carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.