Axle bearing positioning system
US5474387A · kind A · utility
2Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1994 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Apr 26, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7056
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bicycle pedal crank bearing system has a hollow axle within which expandable cone shaped discs are flattened so as to expand radially outward and expand the axle into locking engagement with a thrust sleeve surrounding the axle. Since the thrust sleeve can not move axially relative to the bearing, the axle is likewise axially positioned, but is still free to rotate. The chain path is, thus, easily aligned and access to the bearings for maintenance is made easier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.