Hand-held machine tool e.g. percussion hammer, has drive tube rotatably supported in housing, and tool holder fixedly connected with drive tube, and positively connecting element radially and axially fixing drive tube on housing

摘要

#CMT# #/CMT# The tool has a drive tube (14) rotatably supported in a housing (12), and a tool holder (16) fixedly connected with the drive tube. A positively connecting element (18) radially and axially fixes the drive tube on the housing, and is engaged into a recess (22) of the tool holder by an opening (20) attached on the drive tube. The connecting element comprises a region (28) with a circular section and another region (30) with a square cross-section over a longitudinal extension of the connecting element. An actuating element cooperates with the positively connecting element. #CMT#USE : #/CMT# Hand-held machine tool e.g. boring hammer and percussion hammer. #CMT#ADVANTAGE : #/CMT# The positively connecting element radially and axially fixes the drive tube on the housing, thus avoiding rotation of the drive tube around a longitudinal axis on the housing, and hence obtaining a compact and simple construction of the hand-held machine tool, saving installation space of the machine tool, and providing simple and cost-effective utilization of the positively connecting element for performing multiple functions. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a longitudinal sectional view of a drive tube of a hand-held machine tool with a positively connecting element for radially and axially fixing a drive tube on a housing. 12 : Housing 14 : Drive tube 16 : Tool holder 18 : Positively connecting element 20 : Opening 22 : Recess 28, 30 : Regions.