Marquardt Gmbh

J. & J. Marquardt

Axel Riess

Alois Schaeffeler

An electrical switch includes a stationary contact supported in a housing; a movable contact displaceable between first and second states toward or away from the stationary contact; a blade stationarily supported in the housing; a contact link carrying the movable contact and being rockably supported on the blade to assume first and second pivotal positions thereon to place the movable contact into the first or second state; an operating device movably supported in the housing and being movable in opposite directions of displacement into an operated state and an unoperated state; a first resetting arrangement means for urging the operating device into the unoperated state; a pivotal arm extending from the operating device; a pivot bearing pivotally securing the pivotal arm to the operating device; an operating stud attached to the pivotal arm and cooperating with the contact link for placing the contact link into the first or second pivotal position as the operating device moves into the unoperated or operated state; and a second resetting arrangement for urging the pivotal arm and the operating stud toward the contact link. The pivot bearing and the operating stud are spaced from one another such that in the unoperated state the operating stud is in contact with the contact link and the pivot bearing is situated laterally adjacent the contact link relative to the directions of displacement of the operating device.

Electric switch having a pivotal contact link-actuating arm

An electrical switch includes a switch casing having an open side; a plunger received in the switch casing and projecting through the open side; a guide defined in the switch casing for guiding the plunger to perform sliding motions in response to an external force exerted thereon; a switching mechanism accommodated in the switch casing for cooperating with the plunger to make or break an electric contact in response to a sliding displacement of the plunger; a lid closing the open side of the switch casing; a sealing arrangement for sealingly securing the lid to the switch casing; and a bell-shaped resilient bellows formed on the lid as an integral part thereof. The bellows projects outwardly from the open side and sealingly surrounds the plunger.

Push button switch having sealing bellows

A basic electrical switch comprises a first housing part with a first switch contact mounted therein and a first actuator associated with the first switch contact for actuating it and a second housing having a second switch contact therein and a second actuator connected thereto for actuating the second switch contact and including a snap connection for interconnecting the first and second housings together.

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Tuttlingen, Germany

Axel Riess