Document Type and Number:
Japanese Patent JPS56172230
Kind Code:
U
Abstract:
An improved circuit interrupter comprises an operating shaft pivotally movable to move a movable contact structure, an overcenter spring operating mechanism movable by means of a manually operable drive means from a spring discharged position to an overcenter spring charged position, latch means in a latching position for latching the operating shaft until the overcenter spring operating mechanism reaches the overcenter spring charged position and means automatically unlatching the latch means when the overcenter spring operating mechanism reaches the overcenter spring charged position to permit the overcenter spring operating mechanism to drive the movable contact structure to the closed position independent of the manually operable drive means. The latch means may also be a double latch for performing the same latching function during an opening operation. The latch means prevents slow closing and opening operations of the circuit interrupter.
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Application Number:
JP5673181U
Publication Date:
December 19, 1981
Filing Date:
April 20, 1981
Export Citation:
International Classes:
H01H5/10; H01H33/65; H01H33/40; (IPC1-7): H01H33/42
Domestic Patent References:
| JP44001729A |