Pedal shaft core
US5207118A · kind A · utility
4Cited by
9References
3Claims
0Family size
Inventor
Key dates
| Filing date | Sep 20, 1991 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Sep 20, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2168
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved pedal shaft core is characterized in that the contact surfaces of both shaft core and shaft bearing are designed to be oblique and conical to enable the bearing to comprise roller nest bearing and a casing of circular and conical arc so as to enhance the rotational stability of the pedal shaft core. The toothed cup of the shaft core comprises grease filling apparatus of an inclined type located on the external surface of one end thereof. The improved pedal shaft core further comprises of a pair of W-shaped non-return washers of waterproof and oil-proof nature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.