Chain drive
US6652402B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Aug 30, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G13/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A chain drive comprises a chain having a plurality of articulating chain links and a toothed sprocket. The sprocket and the chain links have bearing surfaces that contact one another during meshing of the chain. The surfaces are disposed along the length of the chain between the apertures and to one side of a sprocket tooth. One of the bearing surfaces is arcuate so that during meshing of said chain link the bearing surfaces are brought into contact such that the instantaneous centre of rotation of the meshing chain link passes from the first pivot pin of a link to the point of contact of the bearing surfaces before passing to the second pivot pin of the link. This reduces the noise generated by collision of the chain links and the sprocket teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.