Step for escalator or plate for travelator, and escalator or travelator and method for production
US8469176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2008 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Apr 12, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B23/12
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The escalator step (1) or the travelator plate comprises a step skeleton (2) or a plate skeleton which carries at least one tread element (22). A first cheek (3), a central cheek (4), a second cheek (5), a carrier (6), a bridge (7) and a bracket (8) form the step skeleton (2). For each cheek (3, 4, 5), a sheet metal blank is stamped from a sheet metal strip and is subsequently formed into the cheek by means of deep drawing processes. The carrier (6), bridge (7) and bracket (8) connect the cheeks (3, 4, 5), wherein the components are welded by means of spot welding processes. The carrier (6), bridge (7) and bracket (8) are produced endlessly from sheet metal coil by means of a rolling deformation process and are cut to length depending on the step width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.