Linear actuator convenient to operate
US12281693B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2024 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Jun 19, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2025/2463
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed is a linear actuator, including a drive motor, a transmission assembly, a rotary screw, a transmission nut, a clutch device, a self-locking device and a hand-pull release assembly. The clutch device is arranged between the transmission assembly and the rotary screw. The self-locking device is configured to generate frictional resistance to the rotary screw when the rotary screw rotates reversely, and the self-locking device includes a release torsion spring. The hand-pull release assembly includes a first driving member connected with the clutch device and a second driving member connected with the self-locking device, and has an initial state and a fully released state. During the process from the initial state to the fully released state, the first driving member drives the clutch device to disconnect power, and the second driving member drives the release torsion spring to extend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.