Remote controlled circuit breaker with recharging cam
AssigneeMerlin Gerin
InventorsPierre Baginski, Jean-Pierre Nebon
Life of this patent
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Abstract
A remote controlled circuit breaker including a mechanism linked to a handle by a drive lever equipped with a roller cooperating with a recharging cam of an energy storage system including a spring. A bearing surface is arranged to block the roller in the charged position, without requiring the presence of a special latching stage, since the line of action of the reaction R of the roller passes via the transmission shaft of the cam. A step-by-step motor of the vibrating type drives the transmission shaft in rotation, and enables almost instantaneous stopping of the cam when the roller is in contact with the bearing surface.
Claims10
A remote controlled circuit breaker, comprising:
- a circuit breaker unit including an insulating case having a front panel, said insulating case enclosing separable contacts which are actuated by a rotatable switching bar, and an operating mechanism connected to the switching bar to open and close the separable contacts, the operating mechanism including an operating handle extending through the front panel of the insulating case;
- and
- a remote control unit adapted to be secured on the front panel of the circuit breaker, comprising a transmission rack which engages the handle and a remote control mechanism connected to the transmission rack, said remote control mechanism including:
- a drive lever coupled to the transmission rack, said drive lever having a roller secured thereto;
- a closing spring connected to the drive lever to store energy therein;
- and
- a recharging cam secured to a rotatable transmission shaft and having a contour against which said roller of said drive lever bears, said recharging cam being driven by one of a geared motor device and manual control device thereby driving the roller and biasing the closing spring, said contour having a first charging sector wherein said spring is biased via movement of the roller therealong, a second stable sector providing a stable position for the roller wherein a line of force of the roller against the recharging cam passes through the transmission shaft, and a release point at which said roller is released.
Dependencies are inferred from the claim text.