Power strut with different rotational friction torque
US12078004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2022 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Sep 18, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2238/024
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A power strut includes anisotropic damping device that provides different frictional torque on a rotatable member in response to rotation in opposite rotational directions. The anisotropic damping device includes a shell, the rotatable member, and a torsion spring. The shell includes a through hole, and the rotatable member extends through the through hole and is rotatably connected to the shell. The torsion spring is sleeved on the rotatable member and is in interference fit with the rotatable member, and the torsion spring is provided with a first leg fixedly connected to the shell. The rotatable member may include a shaft sleeve fixed to a rotating shaft, with the torsion spring in interference fit with the shaft sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.