Emergency stop switch

Details Emergency stop switch Emergency stop switch

1993-11-30

1995-04-18

Recla, Henry J.

Electricity: circuit makers and breakers

Solid contact

Reciprocating actuator

200537, 200539, 200542, H01H 1524

Patent

active

054080614

ABSTRACT:
In the subject emergency stop switch the closing ring penetrates through a face plate, surrounds a pushbutton, and on its rear side is in communication with a control element that is provided for the guidance of a cam, preloaded via a first spring. A first plunger element, in connection with the pushbutton, includes elements for the reception of the cam and the first spring and an adaptor, superimposed on a contact block, surrounds the control element, with the first plunger element actuating, upon a force input via the pushing of the pushbutton, a contact carrier, guided by a contact block, against the resilient force provided by springs. In this manner the contact sets are opened and arched contact arms are utilized which are accessible via connecting terminals with the contact arms being pretensioned in such a manner that they close the contact upon the pushing of the pushbutton.

REFERENCES:
patent: 3902032 (1975-08-01), Koepke
patent: 4255633 (1981-03-01), Johnston et al.
patent: 4385219 (1982-05-01), Finlayson
patent: 4404445 (1983-09-01), Bara et al.
patent: 4504713 (1985-03-01), Hennessey
patent: 4703141 (1987-10-01), Grunst
patent: 5012056 (1991-04-01), Abel et al.

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