Tensioning device for at least one trailing rope
US6499566B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Mar 28, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B7/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A trailing rope tensioning device for an elevator installation engages a trailing rope that extends from a first hitch point of a car frame to a second hitch point of a counterweight frame. The tensioning device has two tensioning pulleys that are arranged offset relative to a vertical direction of travel of the elevator and a transverse horizontal direction. This arrangement of the tensioning pulleys makes it possible to use relatively large tensioning pulleys resulting in a lower number of revolutions per unit of distance traveled, which brings about a reduction in noise from the bearings rotatably mounting the pulleys. Larger diameters of trailing rope and, as a result, fewer trailing ropes can be used. Furthermore, the tensioning pulleys can be standardized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.