Spring operating mechanism for an electrical switch

Details Spring operating mechanism for an electrical switch Spring operating mechanism for an electrical switch

1986-03-24

1987-07-21

Pellinen, A. D.

Electricity: circuit makers and breakers

Liquid contact

Time delay

74569, H01H 302

Patent

active

046819932

ABSTRACT:
An operating mechanism for an electrical switch comprises a drive mechanism; a drive lever having an engaging surface and connected to the drive mechanism for rotation about an axis; an actuating lever rotatable about the axis independently of the drive lever and having a first and a second engagement surface, the first engagement surface engageable with the engaging surface of the drive lever and the actuating lever being rotated when the engaging surface of the drive lever engages and pushes the first engagement surface of the actuating lever; an energy storing means connected in an over-center relationship to the actuating lever for selectively storing and discharging spring energy for opening and closing the the electrical switch in accordance with the rotational movement of the actuating lever; a driven lever rotatable about the axis independently of the drive lever and the actuating lever and having an engagement surface engageable with the second engagement surface of the actuating lever, the driven lever being connected to a movable contact of the electrical switch for opening and closing the contacts in accordance with the rotational movement of the driven lever, and the driven lever being rotatable when the actuating lever rotates and the second engagement surface of the actuating lever pushes the engagement surface of the driven lever. A single common shaft is used for mounting thereon all of the drive lever, the actuating lever, and the driven lever.

REFERENCES:
patent: 4524637 (1985-06-01), Yoshizumi

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