Manual machine tool with tool holder and appropriate tool

US6059493A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Manfred Kirn · Stuttgart, DE
• Ernst Kraenzler · Echterdingen, DE
• Klaus Klingenstein · Echterdingen, DE
• Ernst Dreher · Reutlingen, DE
• Gerd Hahn · Echterdingen, DE
• David Matzo · Echterdingen, DE
• Joerg Ullrich · Waldenbuch, DE
• Joerg Dehde · Steinenbronn, DE
• Karl Garatwa · Reutlingen, DE
• Joachim Schadow · Stuttgart, DE
• Christian Hermes · Holzgerlingen, DE
• Joerg Moessner · Birkenfeld, DE

Key dates

• Filing date: Jun 17, 1998
• Grant date: May 9, 2000
• Expiry date: Jun 17, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T408/95
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The hand-held machine tool has a tool holder (20) provided with a receptacle (19) into which a shaft portion (15) of a tool (16) is axially insertable. The tool holder (20) has a longitudinal axis (11) and includes a guide device (18) for axially guiding the tool (16); a device (23) for rotary slaving of the tool (16); a retaining device (28) for axially securing the tool (16) and a locking member (34) for locking the retaining device (28) in an open configuration for insertion or removal of the tool (16). The retaining device (28) is located in front of the guide device in an insertion direction of the tool (16) in the tool holder (16). The retaining device (28) is provided with an opening (31) for passage of the tool (16) through it. The retaining device (28) includes a clamping part (30) having an open position arranged approximately perpendicular to the longitudinal axis (11) and is pivotable out of the open position in a direction toward the longitudinal axis (11) to reduce an effective cross-section of the opening (31) and into a clamping position in which the clamping part (30) and the tool (16) are clamped together.