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US 9,484,161 B2Granted
Electrical switching device
AssigneeSiemens Aktiengesellschaft
InventorsJoachim Gericke, Robert Gruenler, Martin Krehnke, Volker Lehmann, Friedrich Loebner
Life of this patent
Estimating the term…
Abstract
An electric switching device includes first and second switch contact pieces. The first switch contact piece has a guide portion. The first switch contact piece is connected to an actuating unit or drive device by a kinematic chain. The guide portion of the first switch contact piece is guided on a guide path. The guide portion and the guide path each have a contact or bearing surface and at least one of the contact or bearing surfaces is convexly curved.
Claims7
An electrical switching device, comprising:
- a first switch contact piece and a second switch contact piece;
- a guide path;
- said first switch contact piece having a guide portion being displaceably guided along said guide path, said first switch contact piece having a slot formed therein and said slot having a flank;
- an actuating unit;
- and
- a kinematic linkage connecting said actuating unit at least to said first switch contact piece for generating a relative movement between said switch contact pieces, said kinematic linkage having an entraining element engaging in said slot, and said entraining element having a planar contact surface lying against said flank of said slot;
- said guide portion and said guide path being part of a rotate and slide joint connected to said kinematic linkage.
4 more elements
Dependencies are inferred from the claim text.