Elevator car with mechanical assistance for working platform
US11524874B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2020 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Nov 19, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0246
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator car (1) defining an interior space (2) for accommodating passengers and/or cargo. The elevator car (1) includes a working platform (12) moveable between a stowed position, above the interior space (2), and an operational position, suspended within the interior space (2), a hoisting device (18) located at the working platform (12) and a tension member (16a, 16b) connected to the hoisting device (18) and connected to the working platform (12) such that a suspending portion (17a, 17b) of the tension member (16a, 16b) suspends the working platform (12). The hoisting device (18) is configured, when actuated, to alter the length of the suspending portion (17a, 17b), so as to hoist the working platform (12) between the stowed position and the operational position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.