Tool-holding device

US7739932B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Ernst Kraenzler · Echterdingen, DE
• Peter Stierle · Rübgarten, DE
• Albrecht Hofmann · Passau, DE
• Juergen Wiker · Echterdingen, DE
• Harald Krondorfer · Aurora, US
• Joachim Schadow · Stuttgart, DE
• Sinisa Andrasic · Schenefeld, DE
• Thomas Schomisch · Echterdingen, DE
• Christof Hoelzl · Schwaz, AT
• Johann Huber · Inzell, DE
• Marcus Heckmann · Echterdingen, DE

Key dates

• Filing date: Sep 24, 2004
• Grant date: Jun 22, 2010
• Expiry date: May 13, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T82/2589
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A tool-holding device for an insert tool (14) equipped with an at least essentially disk-shaped hub (42), in particular for a hand-guided angle grinder (32) or a hand-guided circular saw, having a drive device (12) that includes a leaf spring unit (58) and is able to clamp the insert tool (14) in the axial direction (64).The leaf spring unit (58) has at least one freely extending spring piece (110) that extends at least partially in the circumference direction (50, 52).