Switch device with automatic neutral point restoring position an

Details Switch device with automatic neutral point restoring position an Switch device with automatic neutral point restoring position an

1988-08-23

1990-02-27

Cusick, Ernest G.

Electricity: circuit makers and breakers

Solid contact

Rocking actuator

200 1V, 200553, 200558, 200325, H01H 2150

Patent

active

049048333

ABSTRACT:
A switch device comprising an operating knob adapted to be selectively operated according to an operational amount and permit an automatic restoring condition and an automatic locking condition, a first selector member interlocking with the operating knob for effecting a switching operation of contacts, a second selector member engageable with the first selector member for selectively effecting the automatic restoring condition and the automatic locking condition of the operating knob, a switch wafer provided in opposed relationship to the first and second selector members, a locking member adapted to restrict movement of the second selector member, and a resilient member for biasing the locking member toward the second selector member. With this structure, the automatic locking condition may be maintained without the use of a solenoid, thereby reducing the power consumption and heat generation.

REFERENCES:
patent: 2782279 (1957-02-01), Heusser
patent: 2969442 (1961-01-01), Benander et al.
patent: 3504372 (1970-03-01), Sharples
patent: 3684850 (1972-08-01), Kaderbek et al.
patent: 4160138 (1979-07-01), Brown
patent: 4654487 (1987-03-01), Sawada
patent: 4720614 (1988-01-01), Wulff
patent: 4803317 (1989-02-01), Sutoh et al.

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