Power transmission device
US11603892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2022 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Jul 10, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2013/565
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A power transmission device has a first clutch member 4a coupled to an output member 3. A second clutch member 4b has a plurality of driven-side clutch plates 7. A back-torque transmitting cam presses the drive-side clutch plates 6 and the driven-side clutch plates 7 against each other by moving the second clutch member 4b when a rotational force is input to the first clutch member 4a. A cushioning member 12 is interposed between the first clutch member 4a and the second clutch member 4b. The cushioning member 12, by being compressed, applies an urging force while allowing movements of an interlocking member 9 and a pressure member 5 in a process where the interlocking member 9 moves and the pressure member 5 moves from the inactive position toward the active position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.