Power tool

US10052695B2 · 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 25, 2014
• Grant date: Aug 21, 2018
• Expiry date: Jul 25, 2034

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 machine tool, in particular a hand held machine tool, which has a tool receiving device that is movable, in particular in an oscillating manner, around an output shaft (2). The tool receiving device is designed to hold a tool device on the machine tool in such a manner that the output shaft and a tool rotation axis substantially coincide. The tool receiving device has at least one torque transmission region (9) and a holding device (4a, 4b). In order to transmit a driving force to the tool device, the torque transmission region has at least two output area regions (9a) that are arranged at a distance from said output shaft and each have a multiplicity of surface points. Here, the tangent planes to said surface points are inclined in regard to an axial plane which includes said output shaft. Furthermore, the tangent planes are inclined in regard to a radial plane which extends perpendicularly to the output shaft. In this way, the output torque is transmitted reliably to the tool device by the machine tool via the tool receiving device.