Electricity: circuit makers and breakers – Solid contact – Rocking actuator
Patent
1995-11-15
1997-03-04
Walczak, David J.
Electricity: circuit makers and breakers
Solid contact
Rocking actuator
200553, 200 5R, 200 6154, 200 6A, H01H 2124
Patent
active
056070497
ABSTRACT:
A tilt and telescopic switch 10 includes a main body 19 received and accommodated in the space defined by a first hemispherical recess 38 of an upper casing member 12 and a second hemispherical recess 60 of a lower casing member 14. The main body 19 accommodated in the space continuously receives the pressing force of a spring 44 and allows a first hemispherical member 28 of the main body 19 to come into contact with the first hemispherical recess 38 along the substantially whole surface thereof. The first hemispherical member 28 of the main body 19 is thus guided by the hemispherical inner surface of the first hemispherical recess 38, so that the main body 19 rocks from its neutral position in the direction shown by the double-headed arrow X or in the direction shown by the double-headed arrow Y. Even when the main body 19 is guided and rocked by only one side of the first hemispherical recess 38 to cause a deviation of the center of the rocking movement of the main body 19 from the center of the hemispherical surface of the first hemispherical member 28, the structure of the invention allows only hemispherical projections 31a through 31d formed on a second hemispherical member 31 to come into contact with the second hemispherical recess 60.
REFERENCES:
patent: 2808482 (1957-10-01), Zanichkowsky et al.
patent: 3115555 (1963-12-01), Lescarboura
patent: 3281545 (1966-10-01), Pierce
patent: 4027119 (1977-05-01), Tezuka
Kabushiki Kaisha Tokai Rika Denki Seisakusho
Walczak David J.
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