Biasing assembly for a switching device

Details Biasing assembly for a switching device Biasing assembly for a switching device

1997-10-06

1999-08-31

Luebke, Renee S.

Electricity: circuit makers and breakers

Toggle mechanisms

74 971, H01H 506

Patent

active

059441720

ABSTRACT:
A biasing assembly for a switching device is formed in a modular enclosure that may be mounted on either left or right sides of the switching device. The biasing assembly interfaces with the switching device to rapidly move the switching device between first and second stable positions, such as corresponding to open and closed contact orientations. The biasing assembly includes a hub and link plate coupled to a spring assembly. A spring in the spring assembly is precharged by initial movement of an actuating handle. Once a predetermined intermediate position is reached, a double roller arrangement is displaced along a support surface to rapidly toggle the spring assembly, link plate and hub to a second position. The enclosure includes abutment surfaces for stopping and holding the link plate in stable positions. The rolling contact afforded by the spring assembly rollers permits extremely rapid displacement and rolling friction during displacement of the assembly.

REFERENCES:
patent: 2469336 (1949-05-01), Kohl
patent: 3959615 (1976-05-01), Zaffrann, Jr. et al.
patent: 5004875 (1991-04-01), Moody et al.

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