One-way clutch
US9810272B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jun 19, 2017 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Jun 19, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D41/063
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A one-way clutch, including: a load rotor, a driving member, and at least one self-locking gripper. The load rotor is spool-shaped and includes two circular contact races, one race at each end of the rotor. The driving member includes a plurality of inward facing cams on an inner circumference arranged to rotate co-axially with the load rotor. The cams rotate within the space separating the two load rotor races. When in a locking position each gripper presses against both load rotor races and a cam over area-to-area contacting surfaces. Rotation of the load rotor and driving member are locked in the first direction when one or more grippers are in the locking position. The driving member is rotatable independent of the load rotor in the second, free-wheeling direction. During free-wheeling rotation centrifugal force acts to disengage the grippers from the load rotor, thus reducing or eliminating friction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.