(19)
(11) EP 1 739 701 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.03.2009 Bulletin 2009/10

(43) Date of publication A2:
03.01.2007 Bulletin 2007/01

(21) Application number: 06012894.9

(22) Date of filing: 22.06.2006
(51) International Patent Classification (IPC): 
H01H 33/66(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 29.06.2005 JP 2005189829

(71) Applicant: HITACHI, LTD.
Chiyoda-ku Tokyo 100-8280 (JP)

(72) Inventors:
  • Morita, Ayumu , c/o Hitachi Ltd.
    1-6-1 Marunouchi Chiyoda- Tokyo 100-8220 (JP)
  • Tsuchiya, Kenji , c/o Hitachi Ltd.
    1-6-1 Marunouchi Chiyoda- Tokyo 100-8220 (JP)
  • Kobayashi, Masato , c/o Hitachi Ltd.
    1-6-1 Marunouchi Chiyoda- Tokyo 100-8220 (JP)

(74) Representative: Strehl Schübel-Hopf & Partner 
Maximilianstrasse 54
80538 München
80538 München (DE)

   


(54) Device for controlling the opening/closing operation of an electric switchgear


(57) In the switchgear opening/closing device, a movable contact 5 can be switched to the first position Y1, the second position Y2 and the third position Y3 with respect to a fixed contact. The device comprises an operation lever 80 interlocked with the movable contact 5, a shaft 31 to which the base of the operation laver 80 is fixed, a first operation mechanism 40, coupled with the shaft 31, to switch-operate the movable contact 5 to the first position, the second position and the third position, and a second operation mechanism 70 to selectively switch between prevention of movement and movement of the movable contact 5 from the second position to the third position by the first operation mechanism 40.







Search report