Elevator installation with reduced hoistway dimensions
US9150384B2 · kind B2 · utility
0Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2006 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Apr 27, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0045
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator system comprises a hoistway (4), an elevator car (2) arranged to move vertically within the hoistway and a drive machine (10) arranged in the hoistway outside the travel path of the car (2) or vertical projection thereof. The car (2) is coupled to the machine (10) by a rope (18) which is guided by a pair of idler sheaves (26, 28) so as to pass under the car (2). The idler sheaves (26, 28) have a diameter of less than 120 mm. The disclosed arrangement allows both overhead space and pit depth to be minimised.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.