Hinge
US10487549B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 28, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Aug 7, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/148
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hinge used for being installed between a door leaf and a door frame or between a sash and a window frame (7). The hinge includes a gear and rack unit and an inclined draw bar (1). The gear and rack unit is installed on the door frame or window frame (7). A gear (5) is rotatably installed on the door frame or window frame (7). A rack is located on one side of the gear (5). The gear (5) is meshed with the rack. A gear installation portion (51) is arranged on one side of the gear (5). Both ends of the inclined draw bar (1) are installed on the door leaf and door frame or the sash and window frame (7) respectively. According to the present invention, the problem that the existing hinge is unreasonably stressed and prone to damage is effectively solved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.