Safety switch device for electrically controlled machines
US7176399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2002 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a safety switch unit (1) for electrically controlled machines for use in combination with the actual control elements of the machine control system in a hand-held application or for manual control, with at least one operating element which is displaced relative to a mounting frame (8) in accordance with the switching function desired by a user, which is designed to change the switch status of at least one electric switch element, the safety switch unit (1) having at least one switch position which is maintained only as long as a sufficiently high operating force is applied to the displaceable operating elements. Two operating elements for at least one respective electric switch element (14, 15) can be displaced in translation or rotation to a limited degree relative to the mounting frame (8) about a respective pivot axis of two pivot bearings and provide a substantially translating or straight operating movement of the safety switch unit (1) by means of a push button unit (2) which is disposed in front of the two operating elements by reference to the operating direction—arrow (13)—of the safety switch unit (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.