(19)
(11) EP 2 172 957 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.08.2014 Bulletin 2014/32

(43) Date of publication A2:
07.04.2010 Bulletin 2010/14

(21) Application number: 09354039.1

(22) Date of filing: 01.10.2009
(51) International Patent Classification (IPC): 
H01H 3/30(2006.01)
H01H 3/46(2006.01)
 H01H 3/42(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
AL BA RS

(30) Priority: 03.10.2008 IN HE24372008

(71) Applicant: Schneider Electric Industries SAS
92500 Rueil-Malmaison (FR)

(72) Inventors:
  • Kumar m.c., Harsha
    38050 Grenoble cedex 09 (FR)
  • Sonkar, Pavankumar s
    38050 Grenoble cedex 09 (FR)
  • Bahirat, Himanshu
    38050 Grenoble cedex 09 (FR)
  • Sinjonia, Manish
    38050 Grenoble cedex 09 (FR)
  • Kumar, Randhir
    38050 Grenoble cedex 09 (FR)
  • Perrone, Michel
    38050 Grenoble cedex 09 (FR)

(74) Representative: Colette, Marie-Françoise et al
Schneider Electric Industries SAS Service Propriété Industrielle WTC - 38EE1 5, place Robert Schuman
38050 Grenoble Cedex 09
38050 Grenoble Cedex 09 (FR)

   


(54) A compact circuit breaker mechanism.


(57) The present invention describes a compact operating mechanism with cams for a switching device with, preferably, a tripolar insulating rod. The said mechanism is so designed that the force on and the speed of the said tripolar insulating rod is continually increasing with time till the end of the operation. The said mechanism consists of cams mounted on a shaft which is rotated under the influence of springs which have crossed their dead points. This shaft with cams then moves against rollers mounted on the cranks of a slider and crank arrangement of links, where the function of the slider is being served by the tripolar insulating rod. All the operations after the closing springs have crossed their dead points are high speed in nature. A latching arrangement is used to keep the mechanism in closed position till opening.







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