Chain transmission
US7635314B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2005 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Sep 22, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H55/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a chain transmission in which a roller chain transmits power from a driving sprocket to one or more driven sprockets, the sprocket teeth are shaped so that at a location radially outward from the sprocket pitch circle, the distance between the front surface of each sprocket tooth to a radial reference line from the sprocket center through the center of the tooth root, is at least as great as the distance from the centerline to the front tooth surface at the pitch circle. The tooth faces merge smoothly with the tooth gap bottom, the sprocket root diameter is smaller than the root diameter according to ISO standards, and the radius of the arcuate tooth gap bottom is greater than the radius of the chain roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.