Tool device

US10807170B2 · kind B2 · utility

Assignees

• C. & E. FEIN GMBH · DE
• Robert Bosch GmbH · DE

Inventors

• Olaf Klabunde · Höhenkirchen-Siegertsbrunn, DE
• Juergen Blickle · Göppingen, DE
• Walter Thomaschewski · Echterdingen, DE
• Fabian Bek · Bobingen, DE
• Stefano Delfini · Bettlach, CH
• Willi Fellmann · Solothurn, CH
• Bruno Luescher · Zofingen, CH
• Milan Bozic · Solothurn, CH
• Thomas Mathys · Lyss, CH
• Daniel Grolimund · Zuchwil, CH

Key dates

• Filing date: Jul 9, 2018
• Grant date: Oct 20, 2020
• Expiry date: Jul 9, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T279/33
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a tool device which is suitable for use with a machine tool, in particular a hand guided machine tool, having a driving device moving, in particular in an oscillating manner, around a driving axis. The tool device has an attachment device which allows it to be fastened on a machine tool such that its driving axis and an axis of rotation of the tool substantially coincide. The attachment device, for absorbing the driving force, has at least two driving area regions, which are spaced apart from said tool axis of rotation and each has a plurality of surface points. The tangent planes to said surface-area points are inclined in regard to an axial plane, which encloses the tool axis of rotation. Furthermore, said tangent planes are inclined regard to a radial plane which extends perpendicularly to the tool axis of rotation. This means that the torque introduced into the tool device by the machine tool, via the driving device, is reliably absorbed.