Method and system for elevator door locking and detection of elevator door locking state
US10544010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2017 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Aug 11, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/30
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The disclosure provides for a locking system for an elevator car door that includes a locking apparatus mounted to the elevator car door. The locking apparatus includes an elevator door latch arm, a sensing vane, and a fixed vane. The elevator door latch arm has one end configured to be inserted into a catch to lock the elevator car door. The sensing and fixed vanes are generally parallel to one another. When the elevator car door is aligned with a hoistway door, an outer surface of the sensing vane is configured to engage with a roller on the hoistway door, and an outer surface of the fixed vane is configured to engage with another roller on the hoistway door. When both the first and second rollers are engaged by the sensing and fixed vanes, the locking apparatus is configured to remove the elevator door latch arm from the catch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.