Timing belt tensioner with a backstop device with controlled one-way mechanism
US6422962B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2000 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Apr 11, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0878
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tensioner for an endless belt comprising a stationary structure on which a pivotal tension arm with an idler pulley is mounted. A spring between the tension arm and the stationary structure acts to bias the pulley against the belt, thereby applying tension. The invention includes a one-way device that is operable in response to the extent of pivotal movement of the tension arm in the forward direction to establish different positions at which pivotal movement in the return direction is limited. A damping system is used to restrict pivotal movement of the tension arm as a result of sudden short-time vibratory movements or dynamic vibrations in cold conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.