Stair lift
US11872168B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 24, 2019 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Dec 6, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G5/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stair lift, including: a carrier portion, configured for carrying a person or an object; a lift portion, configured for moving relative to the carrier portion; and a driver mechanism, configured for inducing the relative movement. The carrier portion and the lift portion are connected and supported via a guide mechanism, and are configured for freely translating along an X-Z plane relative to each other. The driver mechanism includes a circulation moving mechanism, and the circulation moving mechanism includes a driving pin (moving member), configured for moving along a predetermined closed track under the driving of a single gear motor. The driving pin (moving member) is connected to the lift portion, such that the carrier portion and the lift portion are configured for moving relative to each other along the track, whereby enabling the stair lift to go upstairs or downstairs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.