Hand-held machine tool

US7137457B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Karl Frauhammer · Echterdingen, DE
• Gerhard Meixner · Echterdingen, DE
• Heinz Schnerring · Waldenbuch, DE
• Willy Braun · Neustetten, DE
• Axel Kuhnle · Freiberg, DE

Key dates

• Filing date: Apr 7, 2004
• Grant date: Nov 21, 2006
• Expiry date: Apr 7, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T279/17145
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A hand power tool, in particular a drill hammer or jackhammer, is disclosed, which has a guide tube (11), a tool holder (24) that can be attached interchangeably to the guide tube (11), and a locking device (23) that locks the tool holder (24) to the guide tube (11), the locking device being manually releasable by means of an axial displacement of a slide sleeve (34) oriented away from the tool holder (24). To achieve a compact connection construction, which is economical in production terms, between the interchangeable tool holder (24) and the hand power tool, the tool holder (24) is embodied as insertable by an end portion (241) into a guide portion (111) embodied on the front end of the guide tube (11), in the inner wall thereof (FIG. 1).