Alfred Kärcher Gmbh Co. Kg

Bernd Noller

Frank Nonnenmann

Rainer Schaefer

Juergen Merz

Gilles Troff

Michael Oesterle

Frank Stadelmann

Rainer Schäfer

Michael ÖSterle

A self-propelled surface cleaning machine is proposed, including a floor cleaning device, a steerable front wheel, a steering device associated with the front wheel, a rear wheel device having at least one left rear wheel and at least one right rear wheel, a first drive device for driving the front wheel, a second drive device for driving the rear wheel device and a differential device for the rear wheel device that allows different speeds of rotation for the at least one left rear wheel and the at least one right rear wheel.

Self-propelled surface cleaning machine and method for operating a self-propelled surface cleaning machine

The invention relates to a cleaning appliance, wherein in order to access same, an access authorization stored on an authorization carrier is required, the appliance including two or more authorization carriers with access authorizations stored thereon which are linked to different authorization profiles, and a detection unit for detecting the access authorization of an authorization carrier, wherein a range of functions dependent on the authorization profile linked to the access authorization can be provided to an operator by the cleaning appliance. In order to provide such a cleaning appliance which is more user-friendly in operation, it is proposed that each authorization carrier comprises an identification device for providing an identifier which is associated with the particular authorization profile of the authorization carrier and which is perceivable by the operator using a sensory organ, wherein identifiers associated with different authorization profiles are different from one another.

Cleaning appliance in which access is granted based on an authorization carrier and authorization profile

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Bad Schoenborn, Germany

Bernd Noller