Rotational tensioner with stored energy and damping feature
US10094450B2 · kind B2 · utility
2Cited by
25References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2015 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Aug 18, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/185
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tensioner uses a low rate torsion spring in a first stage and a high rate torsion spring in a second stage to maintain tension in a chain or belt. The first stage is connected to the second stage by a torque coupling. The high rate torsion spring is maintained in an energized state between a ground and a dead stop to store energy and to provide tension under high loads. In some embodiments, the torque coupling is a damper. In other embodiments, the torque coupling is a clutch. A method stores energy in a high rate torsion spring of a tensioner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.