Bottom guiding device for elevator car and landing doors
US7721851B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2004 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Jun 2, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/301
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The bottom guiding device according to the invention for telescoping elevator car and/or landing doors with at least one fast-moving door (3) and one slow-moving door (1) moving parallel to and within a small distance from a threshold plate (5) of a car and/or landing door respectively, is characterized in that it implements a threshold plate (5) on the car and/or landing side, formed with at least one lower edge parallel to the travel path of the doors (1, 3) and forming a bottom guide track (31) for the doors; a bottom plate (11) integral with the slower door (1) and extending with a small clearance below the faster door (3), provided on the threshold side with a guide track (13) parallel to the travel path of the doors (1, 3) and accommodating a guide element (19) integral with the faster door (3) and close to its rear lower end; at least two distant guide elements (25) integral with said bottom plate (11) on the slower door and accommodated on said (31) on the threshold plate so as to slide freely; and at least one guide element (33) integral with the faster door (3) and accommodated on said guide track (31) on the threshold plate, arranged substantially at the front end of the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.