Safety switching device for electrically controlled machines
US6160323A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Mar 9, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/028
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a safety switching device (1) for electrically controlled machines, for use in combination with the control elements of the machine control-system itself during manual operation, in which the multi-action safety switching device (1) has several channels or several switching circuits (7, 8) and the switching circuits have at least one operating element (2, 3) which can be adjusted by an operator depending on the desired switching function. Each switching circuit (7, 8) has at least one position-sensing device (14, 15), comprising in particular contactless detection devices (16, 17) for detecting, at any time, the position (4 to 6) of the operating elements (2, 3) corresponding to the respective switching stages, which can be adjusted by the operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.