Microswitch

Details Microswitch Microswitch

H - Electricity

01

H

306/330

H01H 21/44 (2006.01)

Patent

CA 1239434

ABSTRACT A microswitch comprises an insulating base, fixed contacts secured on the insulating base, a movable contact adapted for selectively contacting the fixed contacts, an actuating member, and means for shifting the movable contact by the use of the actuating member. The means for shifting the movable contact includes an actuating lever, an intermediate lever, a flat spring, and a contact lever all connected in series with one another, the actuating and the contact levers being pivotally connected to the insulating base, the ends of the intermediate lever and of the flat spring being connected with one another and bearing up against a limit stop, and the contact lever having a free end whereon the movable contact is located. The flat spring is connected with the end of the contact lever opposite to the free end thereof on which the limit stop and the movable contact are located, and the contact lever is connected with the insulating base at the middle portion thereof between the movable contact and the point of connection of the ends of the contact lever and the flat spring. In comparison with prior art microswitches this micro- switch has a small differential stroke and high sensitivity.

406819

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