Hinge system of electric door
US11639625B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 1, 2019 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Mar 4, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/00571
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to a hinge system of an electric door comprising a control module, an intelligent automatic recognition system for installing in a door or a door frame and including a recognition device and a sensing module, and a hinge assembly. The hinge assembly comprises a pivot housing, a power unit disposed in the pivot housing and electrically connected to the control module, a first hinge member having a first knuckle for sleeving on the pivot housing and a second hinge member connected to two ends of the pivot housing. The power unit comprises a motor assembly having a motor axis, a reduction gearbox having one end connected to the motor axis, a gear shaft and plural planetary gears, and a gear connected to the gear shaft of the reduction gearbox.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.