Tensioning device for the energy storage system of an...

Details Tensioning device for the energy storage system of an... Tensioning device for the energy storage system of an...

H - Electricity

01

H

306/328

H01H 3/30 (2006.01) H01H 33/40 (2006.01)

Patent

CA 1304437

ABSTRACT OF THE DISCLOSURE Tensioning device for the energy store of an electrical switch, the energy store including a drive spring and the switch having a turn-on lock provided with a blocking latch of the turn-on lock of the switch, the device including: a rotatable drive shaft having a crank articulated to the drive spring, the drive shaft being rotatable into an end position at which the spring is tensioned and the drive shaft is supported at the blocking latch; a rotatable tensioning shaft and a displacement- producing mechanism carried by the tensioning shaft; a directional coupling device disposed on the drive shaft and coupled to the displacement-producing mechanism for rotating the drive shaft in steps in a selected direction in response to rotation of the tensioning shaft; a spring member disposed for maintaining the coupling in operative engagement with the displacement-producing mechanism; a setting member associated with the drive shaft for uncoupling the directional coupling device from the dis- placement-producing mechanism when the drive shaft is in its end position; and an additional energy source which is charged before the drive shaft reaches its end position and which is connected to hold the setting member in a position to maintain the directional coupling device uncoupled from the displacement- producing mechanism. - 1a -

544283

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