Patent · US Expired

Actuating device for a low-voltage circuit breaker with a ratchet wheel

US4742200A · kind A · utility

13Cited by

10References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ulrich Marquardt · Berlin, DE
Ralf Seebold · Berlin, DE

Key dates

Filing date	Nov 12, 1986
Grant date	May 3, 1988
Priority date	—
Expiry date	Nov 12, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/20672
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

For cocking an energy accumulator, an actuating device comprises a ratchet wheel with teeth as well as a reciprocating transport ratchet. For maintaining the cocked position of the energy accumulator, a cam wheel and blocking lever which can be braced against a blocking member via a ratchet lever are provided. Due to a wedge-like cooperation between a working surface of the cam wheel and a projection of the blocking lever, the blocking lever is transferred from its rest position into a blocked position if the deadcenter position of the cam wheel is exceeded. In the process, the transport ratchet is lifted from the teeth of the ratchet wheel by means of a striking surface of the blocking lever.

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