Combined-operation type switching apparatus including rotational

Details Combined-operation type switching apparatus including rotational Combined-operation type switching apparatus including rotational

1995-10-05

1997-09-09

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Combined pivoted and reciprocating contact

200 5R, 200 18, H01H 900

Patent

active

056659466

ABSTRACT:
A combined-operation type switching apparatus which is downsized and exhibits excellent operability. An operation unit is rotatably and slidably held by a housing. An operation ring is also rotatably held by the housing. The operation ring is rotated together with the operation unit only when the operation unit is pressed. A drive unit is movably supported by a shaft of the operation unit via a spring. A push switch (swell) actuated by pressing the drive unit and rotation detecting switches (projections) actuated by rotating a drive rod of the operation ring are placed inside the housing. A first pair of rotation detecting switches is actuated by rotation of the operation unit when the operation unit is not pressed. The push switch and a second pair of rotation detection switches are actuated by pressing the operation unit such that the operation unit slides along its axis toward the push switch, and then rotating the operation unit. The second pair of rotation detecting switches is actuated (without actuating the push switch) by rotation of the operation ring without pressing the operation unit. In this manner, a plurality of switch operations are performed with a minimal number of members.

REFERENCES:
patent: 3499125 (1970-03-01), Stoi
patent: 3511943 (1970-05-01), Kibler
patent: 4180713 (1979-12-01), Gonzales
patent: 4225758 (1980-09-01), Kondo et al.
patent: 4273971 (1981-06-01), Tregurtha
patent: 4394546 (1983-07-01), Harumatsu
patent: 5003132 (1991-03-01), Lagier
patent: 5107243 (1992-04-01), Maeda
patent: 5510810 (1996-04-01), Nishijima et al.

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