Seat height adjustment actuator
US10369903B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2016 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jul 6, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D15/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An actuator includes a pinion engaging a seat height adjustment mechanism. A brake drum fixed to the seat defines an outer brake race. A brake hub integrated with the pinion, rotatable in the brake drum, defines an inner brake race. Rolling brake elements between the brake races lock the brake hub to the brake drum in the absence of actuator input. A clutch drum covers the brake races, defines an outer clutch race, and includes clutch tabs to displace the rolling brake elements, unlocking the brake hub, responsive to actuator input. A driver cam rotatable within the clutch drum defines an inner clutch race. Rolling clutch elements in the clutch races transmit actuator input to the clutch drum and permit rotation of the driver cam relative to the clutch drum in the absence of actuator input. An exterior cup fixed to the brake drum defines a housing for the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.