Importance

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Abstract

A manually operated switch device with small operating play and precise function for the control of electrical equipment which includes a switch housing which has stationary contacts adapted thereto, and a contact bridging element with moving contacts which is adapted to be movable. The switch is operated by means of an actuating member which is movable in the interior of the switch housing and which is capable of transferring, by a rotational motion of the actuating member, the moving contacts for engaging and disengaging with the stationary contacts, and by means of a transmission means for converting the rotational motion of the actuating member into an axial motion. Springs are adapted to cooperate with the transmission means for exerting a spring force onto said transmission means for engaging and disengaging said contacts by having at least two springs located at the opposite sides of the actuating member for exerting a symmetrical spring force on said actuating member and said transmission means.

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First Claim