Safety switch with unlatching disc
US6861597B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Feb 8, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2027/005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device switches an electrical connection in accordance with the condition of a device to be monitored, especially to a safety switch (1) for a protective device. The safety switch includes a housing (2,3) in which a switch disk (7) is mounted for rotation about an axis (8). An actuator (5) can be inserted for triggering the switching process. A latching device blocks the switch disk (7). The latching device has a latching element (12a, 12b) guided in the switch disk (7) and movable against the effect of a first energy accumulator (11). In a position in which it blocks the switch disk (7), the latching element (12a, 12b) engages an associated recess (13a, 13b) in the housing (2, 3). A rotatable release element (14a, 14b) disposed beside the switch disk (7), is rotatable relative to the switch disk (7) when the actuator (5) is inserted. When the release element (14a, 14b) is rotated, the latching element (12a, 12B) is slid back parallel to the axis (8) into the switch disk (7) against the effect of the first energy accumulator (11), thereby placing it in a release position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.