Linear actuator
US12013016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2021 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Aug 23, 2041 |
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 housing, a worm wheel, a rotating screw and a drive nut. The worm wheel drives the rotating screw to rotate. The rotating screw rotates to drive the drive nut to move axially along the rotating screw. A clutch means is arranged between the worm wheel and the rotating screw. The clutch means includes a coupling gear sleeve axially movable relative to the rotating screw. The rotating screw is sleeved with an axial limiting sleeve. The axial limiting sleeve and the housing are abutted axially. The axial limiting sleeve and the rotating screw maintain alignment in an axial direction. When the rotating screw is subjected to an axial load, the rotating screw transmits axial force to the housing through the axial limiting sleeve, and the axial force is not transmitted between the coupling gear sleeve and the axial limiting sleeve in the axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.