Festool Gmbh

Mutasem Rabah

Stefan Tulodziecki

Michael Higelin

Florian Beck

Ulrich Kasper

Christoph Dieter

Frank Siebert

Stefan Scharpf

A disc tool for a processing machine for grinding and/or polishing a workpiece (W); wherein the disc tool (A,B,B) has a carrier () for attachment to an output () of the processing machine (); wherein a cushion element (A,B,C) made of elastic material and a retaining wall element (A,B,C,D) for retaining the cushion element (A,B,C,) are arranged on the carrier (); wherein the retaining wall element (A,B,C,D) is held on the carrier () by means of retaining bolts (); wherein retaining bolt passage openings () of the retaining wall element (A,B,C,D) extending through retaining mounts (), of the carrier () are accommodated along bolt sections () of the retaining bolts () extending along the bolt longitudinal axes (BL), and the retaining wall element (A,B,C,D) is held between bolt heads () of the retaining bolts () and the carrier (); and wherein an adhesive layer () is arranged on a side of the retaining wall element (A,B,C,D) opposite the carrier (), on which adhesive layer a processing means () for grinding and/or polishing the workpiece (W) can be releasably attached to the disc tool (A,B,B). The adhesive layer () has recesses () assigned to the bolt heads ().

Disc tool

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.

Mobile machine tool with suction unit and control method

Abrasive sheet holder

Growing community of inventors

Wendlingen, Germany

Mutasem Rabah