Festool Gmbh

Stefan Scharpf

Christoph Dieter

Stefan Tulodziecki

Mutasem Rabah

A mobile machine tool for processing a surface of a workpiece or of a room having a working device which is mobile with respect to a surface of the workpiece or room, which working device includes a tool receptacle for a work tool driven or drivable by a drive motor and/or a coating device having a coating tool for coating the surface, wherein the working device includes a suction device for suctioning the working device onto the surface by means of at least one force component oriented in a normal direction of the surface, wherein the suction device has at least one valve for controlling an intake air flow and/or a negative pressure in a suction region of the working device for suction onto the surface, and wherein the at least one valve has a valve member which is adjustable between at least two valve positions in which a flow cross-section of the valve is different. The suction device includes a suction controller for adjusting the valve member during operation of the work tool or the coating device between its valve positions depending on at least one physical variable.

Growing community of inventors

Aichwald, Germany

Stefan Scharpf