Patent · US Active

Switching device with a switching element driven via a flexible shaft

US8779310B2 · kind B2 · utility

0Cited by

4References

27Claims

0Family size

Assignee

ABB TECHNOLOGY AG · CH

Inventors

Klaus Keim · Hanau, DE
Michael Mann · Joplin, US
Tobias Erford · Zürich, CH
Daniel Kuhl · Frankfurt, DE
David Saxl · Zürich, CH
Peter Klonecki · Frankfurt, DE

Key dates

Filing date	Jul 27, 2012
Grant date	Jul 15, 2014
Priority date	—
Expiry date	Dec 31, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH01H71/56
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A switching device includes a switching element movable from a first position into a second position, a drive unit producing a rotary movement, and a flexible shaft transmitting the rotary movement to the switching element. The shaft has rotatable input and output sections on input- and output-drive sides, respectively. During movement of the shaft, a first rotary angle is producible at the output section, which first rotary angle is less than a second rotary angle at the input section at the same time, such that a first rotary angle shift is produced. The input section is connected to a switching position detection element having a control means with a first region which corresponds to the first position of the switching element and is coupled to the detection element. An identical indication of the detection element can be achieved in case of different rotary angle shifts in the same electrical switching state.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.