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US 9,548,175 B2Granted
Switching-device tripping apparatus
AssigneeSiemens Aktiengesellschaft
InventorsOliver Duwe, Thomas Hilker
Life of this patent
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Abstract
A switching-device tripping apparatus for a switching device includes contact pieces that can be moved relative to one another. Relative motion between the contact pieces is generated by a gear or transmission configuration. The gear or transmission configuration has a pawl in order to control motion of the contact pieces relative to each other. First and second tripping devices are provided, which work or operate the same pawl and drive the same pawl.
Claims12
A switching device tripping apparatus for a switching device, the switching device tripping apparatus comprising:
- contact pieces configured to move relative to one another;
- a gear configuration configured to generate a relative movement between said contact pieces, said gear configuration having a pawl;
- first and second tripping devices having plungers configured to independently move against, actuate and drive said pawl;
- a bar having one end connected to said second tripping device and another end passing through said first tripping device for driving said pawl;
- and
- first and second drive apparatuses each configured to independently exert a force effect on a respective one of said first and second tripping devices.
3 more elements
Dependencies are inferred from the claim text.