Bicycle freewheel core holder
US4669714A · kind A · utility
1Cited by
4References
1Claims
0Family size
Inventor
Key dates
| Filing date | Mar 25, 1985 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Mar 25, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B9/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Two generally semicylindrical halves are held by an O ring encircling them with generally diametral matching surfaces in engagement. Lugs projecting from the matching surfaces are engageable in sockets in the other matching surfaces to deter sliding of the halves parallel to the matching surfaces. The matching surfaces have transverse ridges and clearance so that pressing tail portions of the halves at one side of the ridges will spread head portions at the opposite side of the ridges into clamping engagement with the aperture of a freewheel core into which such head portions are fitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.