Headrest tilt mechanism utilizing gear reduction
US11702211B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2021 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Jan 12, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D11/0689
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A headrest assembly for a seat, such as an aircraft pilot seat, including a headrest and a headrest tilt mechanism. The tilt mechanism includes a headrest support, a casing fixed to the headrest support defining a rotation limiter feature determining a full aft headrest position and a full forward headrest position, a driven gear rotatably disposed in the casing, a driver gear rotatably disposed through an axial opening formed though the driven gear, an engaging feature for urging against the headrest, and an actuator for rotating the driver gear. The driven gear and the driver gear have a predetermined gear tooth reduction ratio and a predetermined axial shift distance such that the two gears are arranged in a profile shifted configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.