Elevator synchronous door knife
US10427914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2016 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Aug 29, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/12
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A synchronous door knife includes a track frame and a bottom plate, the back of the bottom plate is hinged with a stop arm, a transmission arm and a lock plate, a front end of the stop arm is provided with a guide wheel, upper and lower portions of the front of the bottom plate are respectively hinged with rotating arms, the upper rotating arm is linked with the transmission arm through a draw bar, one end of the rotating arms is hinged with a first blade, the other end is hinged with a movable plate, the movable plate is hinged with unlock rotating arms, one end of the unlock rotating arms is hinged with a second blade, and the other end abuts against the lock plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.