EP 1819486 A1 20070822 - HANDHELD MACHINE TOOL, ESPECIALLY A DRILL HAMMER AND/OR A PERCUSSIVE DRILL
Title (en)
HANDHELD MACHINE TOOL, ESPECIALLY A DRILL HAMMER AND/OR A PERCUSSIVE DRILL
Title (de)
HANDWERKZEUGMASCHINE, INSBESONDERE BOHR- UND/ODER SCHLAGHAMMER
Title (fr)
MACHINE-OUTIL A MAIN NOTAMMENT MARTEAU PERFORATEUR ET/OU PERCUTEUR
Publication
Application
Priority
- EP 2005053584 W 20050722
- DE 102004047470 A 20040930
Abstract (en)
[origin: WO2006034899A1] The invention relates to a handheld machine tool, especially a drill hammer and/or a percussive drill. Said machine tool comprises a hammer tube (15) which is rotatably arranged in a housing (11) and is used to rotatably drive a tool receiving element (16) holding a tool in a rotationally fixed and axially displaceable manner, a motor-driven drive toothed wheel which is arranged on the hammer tube (15) and is used to rotatably drive the hammer tube (15), and a latch coupling (24) comprising concentric coupling parts that are engaged by means of torque-transmitting elements (26) and can be latched against a radial force of a coupling spring when a threshold torque is exceeded. One of said coupling parts is formed by the hammer tube (15), and one is a motor-driven percussive mechanism (18) which is arranged in the hammer tube (15) and is used to drive the tool in a translatory manner. The aim of the invention is to produce a robust latch coupling (24) that can be used both for a hammer tube (15) that is axially fixed in relation to the housing (11) and for a hammer tube (15) that can be axially displaced in relation to the housing (11), said hammer tube (15) being embodied as a single component or in several parts. To this end, the other coupling part of the latch coupling (24) is formed by a coupling sleeve (25) that is arranged on the hammer tube (15) in a sliding manner and can be coupled to the drive toothed wheel (14) for the fixed rotary connection.
IPC 8 full level
B25D 16/00 (2006.01)
CPC (source: EP)
B25D 16/003 (2013.01); B25D 2250/165 (2013.01); B25D 2250/205 (2013.01)
Citation (search report)
See references of WO 2006034899A1
Designated contracting state (EPC)
CH DE GB LI
DOCDB simple family (publication)
DE 102004047470 A1 20060406; CN 100544896 C 20090930; CN 101031393 A 20070905; EP 1819486 A1 20070822; JP 2008514440 A 20080508; JP 4778516 B2 20110921; WO 2006034899 A1 20060406
DOCDB simple family (application)
DE 102004047470 A 20040930; CN 200580033382 A 20050722; EP 05771980 A 20050722; EP 2005053584 W 20050722; JP 2007533973 A 20050722