Method for constructing an elevator system having an adaptable usable lifting height
US11034550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2017 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Apr 16, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B19/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for constructing an elevator system in a building includes performing at least one lifting operation to adapt a usable lifting height of the elevator system to an increasing height of the building. A drive platform supporting an elevator drive machine and, by a flexible support, an elevator car and a counterweight is raised during the lifting operation. A difference between an elevator-car-side support weight and a counterweight-side support weight is substantially compensated by a compensating tension device guided from a bottom side of the elevator car to a bottom side of the counterweight by a deflecting device including two roller assemblies having deflecting rollers forming a compensating tension loop. A distance between the roller assemblies is reduced before and/or during the lifting operation such that an amount of the compensating tension device required for the performance of the lifting operation is released from the compensating tension loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.