Sprocket wheel
US4473364A · kind A · utility
14Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1982 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Apr 21, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H55/303
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sprocket wheel has a plurality of equi-spaced circumferential teeth, each pair of adjacent teeth defining therebetween a pocket. The pockets are shaped to engage with the links of a drive chain. The teeth are formed with flanks at their edge faces which lead and trail during rotation of the sprocket wheel. The flanks merge with rounded faces which define bases of the teeth. The teeth are asymmetrically shaped in such a manner that the rounded faces associated with leading flanks each have a radius of curvature which is greater than the radius of curvature of each of the rounded faces associated with trailing flanks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.