EP 0891831 B1 20020213 - Rotary hammer
Title (en)
Rotary hammer
Title (de)
Bohrhammer
Title (fr)
Marteau rotatif
Publication
Application
Priority
DE 19731602 A 19970718
Abstract (en)
[origin: EP0891831A1] A rotary hammer with a hammer housing and a hammer mechanism provided therein has a tool holder (40) releasably fitted onto the front section of the hammer spindle (6) for receiving a hammer bit (41) with limited axial movement and non-rotatably. Arranged coaxially with respect to the section of the hammer spindle is a drill spindle (30), beyond the front end of which the section of the hammer spindle (6) receiving the tool holder (40) projects, and to which a drill chuck (42) for receiving an insert tool without axial displacement can be releasably and non-rotatably attached. The drill spindle (30) is driven by an additional rotary drive which operates when the electric motor is actuated, and the rotational speed of the drill spindle (30) is higher than the rotational speed of the hammer spindle (6) . <IMAGE>
IPC 1-7
IPC 8 full level
B23B 45/00 (2006.01); B23B 45/02 (2006.01); B23B 45/16 (2006.01); B25D 16/00 (2006.01)
CPC (source: EP)
B25D 16/006 (2013.01); B25D 2216/0023 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0891831 A1 19990120; EP 0891831 B1 20020213; AT E213189 T1 20020215; DE 19731602 A1 19990121; DE 69803817 D1 20020321; DE 69803817 T2 20020919
DOCDB simple family (application)
EP 98305568 A 19980714; AT 98305568 T 19980714; DE 19731602 A 19970718; DE 69803817 T 19980714