Drive unit for moving loads and people, and devices for moving people and loads comprising such drive units
US9624074B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2012 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | May 2, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F19/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a drive unit which comprises a motor (6)-driven spindle (5), rollers (2, 3), and cables (11), and which has a favourable transmission ratio, specifically N:1 in which N=4+n, and n is an integer between −2 and 8 including 0. Said unit is used to move loads and people, is particularly suitable for lifts, is space-saving, environmentally friendly, low-maintenance, economical in terms of energy consumption, and call be used both in the construction of new lifts and in the renovation of older installations. It allows the installation to be operated securely, and people and loads to be transported at high speeds. It can, for example, be installed at the lower or upper end of a shaft, or also outside of the shaft. It can be used for movement in a vertical, horizontal and also inclined direction, and may be provided with a counter weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.