Johnson Electric S.a.

Johnson Electric International Ag

Delphi Technologies, Inc.

Gerhard Fangmann

Udo Balgheim

Martin Koepsell

Joachim Köhler

Martin Tietgen

The invention relates to an electric switch for electric devices. A changeover device is additionally provided for changing the direction of rotation of the electric motor. This changeover device includes a position sensor which is able to be operated from outside and features a haptic element.

Electric switch and position sensor thereof

An electric switch for electrical devices that includes a circuit board immovably arranged in a switch housing, the circuit board includes on one of its surfaces the contact paths of a contact system as well as contact surfaces in the form of potentiometer tracks. The contact paths interact with sliding contacts of the contact system and the potentiometer tracks interact with additional sliding contacts in order to set the revolutions per minute or the torque of the electric motor, movement of the plunger causes the sliding contacts of the contact system to come into contact with the associated contact paths, and, in this position of the plunger, which is the on position of the switch, the sliding contacts used for changing the direction of rotation are in the same way already in contact with the associated potentiometer tracks on the circuit board.

Electric switch

An electric switch is provided. The electric switch comprises a contact system, an actuation element, an engaging latch, and an actuator. The actuation element moves between an initial position and an actuation position to switch and changeover the contact system. The actuation element is located in a direction of the initial position by a force of a return spring. The engaging latch locks the actuation element in the initial position or the actuation position. A non-manual unlocking between the actuation element and the engaging latch is performed by the actuator.

An electric switch, in particular for manually operated electric tools or appliances with an electric motor, is switchable from outside by means of a plunger. A changeover device is provided for setting the direction of rotation of the electric motor, which changeover device can be activated for example by a tappet arranged on the outside. The switch is constructed very compactly, which simplifies the sealing of a switch of this type.

A device for switching and controlling electrical apparatus, has a guide bearing for creating haptics indicating the position of the device. The guide bearing has one bearing part constructed as a switch housing and one bearing part constructed as an actuating element. The guide bearing has a control path formed on one of the bearing parts and a rolling-body mount constructed on the other bearing part. A rolling body is held in the rolling-body mount. A haptic spring presses the rolling body onto the control path. The structure of this device is suitable for creating haptics, without the operational reliability and service life of the guide bearing being appreciably impaired.

Device for switching and controlling electrical apparatuses

A switch has a housing and an actuating element retained on a travel path in the housing. A restoring member () provides a restoring force urging the actuator to an off position at one end of the travel path. A resistance generator provides a resistance force which opposes the restoring force when the actuator is in a fully actuated position to reduce the holding force require to keep the actuating element in the fully actuated position.

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Marienheide, Germany

Gerhard Fangmann