Elevator car drive and support belt having a twisted orientation
US7040456B2 · kind B2 · utility
12Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2004 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Nov 30, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20323
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator system includes a roller arrangement and a belt for supporting an elevator car. The roller arrangement has two rollers with approximately parallel axes of rotation and structured circumferential surfaces engaging a complementary structured surface of the belt. The structured surfaces have alternating ribs and grooves. The belt is twisted about its longitudinal axis between the two rollers to keep the structured surfaces in contact and forms an under-looping for support of the elevator car.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.