Operating apparatus for circuit breaker
AssigneeHitachi, Ltd.
InventorsTuneo Kishi, Seizo Nakano
Life of this patent
Estimating the term…
Abstract
A circuit breaker operating apparatus comprising an operating piston connected to an operating member for operating a breaking section, holding means for mechanically maintaining the operation-complete state of the operating piston at the time of completion of its operation, spring means for giving a restitutive force to the operating member, and means for releasing an operating medium acting on the operating piston at the time of completion of its operation. The holding means includes a first lever connected to the operating piston and a second lever having an end connected to the first lever and the other end adapted to be locked by lock means. The lock means is so simple as to be arranged at an optimum position.
Claims5
A circuit breaker operating apparatus comprising:
- an operating piston connected to an operating member for operating a breaking section;
- admission valve means for supplying an operating medium to said operating piston;
- spring means in which restitutive force is stored during the operation of said operating piston and which delivers the stored restitutive force to said operating member;
- means for releasing said operating medium acting on said operating piston upon completion of the operation of said operating piston;
- and holding means including a first lever connected to said operating piston for rectilinear motion and a second lever having an end adapted to be locked by lock means and the other end mechanically coupled to said first lever;
- said holding means mechanically maintaining the operation-complete state of said operating piston and releasing said state at the time when said operating piston is restituted.
Dependencies are inferred from the claim text.