Switch-operating mechanism with improved charging arrangement

Details Switch-operating mechanism with improved charging arrangement Switch-operating mechanism with improved charging arrangement

H - Electricity

01

H

306/328

H01H 3/30 (2006.01)

Patent

CA 1276960

A stored-energy switch operating mechanism is provided that includes a charging arrangement that reduces the peak forces required during the charging of the operating mechanism to store operating energy. The charging arrangement is responsive to a unidirectional input to accomplish the charging of the operatingmechanism. In an illustrative arrangement, the operating mechanism inlcudes a closing spring and an opening spring. During charging, the springs are sequentially charged prior to any switch-closing or switch-opening operation. The operating mechanism does not require the detachment of any components during either charging or switch operation. The charging arrangement, in an illustrative embodiment, is responsive to a unidirectional rotary input to a charging crank to sequentially drive a charging element in a first direction and then in a second,opposite direction. In the first direction, a first of the springs is charged and latched. In the second direction, the second spring is charged and latched. The operating mechanism is then ready for switch operation when required. For example, in a specific arrangement, the switch is open during charging. After charging and when it is desired to close the switch, the closing spring is released which causes the operating mechanism to close the switch. Thereafter, when it is desired to open the switch, the opening spring is released.

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