Electromechanical strut with power actuator having supplemental friction control
US10767412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2019 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Jan 31, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/546
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electromechanical strut is provided for moving a pivotal closure member between open and closed positions relative to a motor vehicle body. The electromechanical strut includes a drive mechanism having a motor-gearbox assembly, flex coupling assembly, and a spring-loaded supplemental friction assembly that are operable to drive a rotatable power screw. The drive mechanism converts rotary motion of the power screw into linear motion of an extensible member to move the extensible member between a retracted position corresponding to the closure member closed position and an extended position corresponding to the closure member open position. The motor-gearbox assembly includes a motor and a geartrain having an output component driven at a reduced speed relative to the motor speed. The flex coupling assembly is operably disposed between the output component and the power screw. The spring-loaded supplemental friction assembly generates and applies a supplemental frictional force to the flex coupling assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.