Jungheinrich Aktiengesellschaft

Matthias Kube

Ralf Baginski

Nikolaus Eggert

Nis-Georg Nissen

Frank M&auml;nken

A motion controller for a motor-driven transportation truck or trolley with a steering pole that can be swivelled about a horizontal axis attached to a steering shaft or a steering frame and is provided with means for setting the direction of motion and the speed, characterized in that the steering pole is equipped with a sensor means providing an output signal that depends not only on the magnitude of the force applied to the steering pole, but also on whether this force is a push or a pull, and that the system also comprises a feed back controller unit that sets and/or regulates the speed and the direction of rotation of the driving motor according to this output signal.

Motion controller for a motor-driven, pole-conducted transportation truck or trolley

A follower industrial truck including a drive motor, a handle lever having a first end which is linked to a steering shaft of the industrial truck to pivot about a horizontal axis, a handle lever head which is movably mounted with respect to the handle lever in a pull and push manner, a spring arrangement between the handle lever and the head, which biases the head in opposite directions towards a neutral position produces a path signal (S,), the magnitude of the path signal (S,) being approximately proportional to the extent of the deflection, a first controller which produces a first nomimal value (I,) for the current of the drive motor, and a further controller adapted to receive a comparison current value which is achieved by the comparison of the actual current value (I,) of the drive motor and of the first nomimal value (,) from the first controller in order to produce a setting current value for the drive motor.

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Herborn, Germany

Matthias Kube