EP 1136155 A2 20010926 - Process and device for removing punch rivets from a workpiece
Title (en)
Process and device for removing punch rivets from a workpiece
Title (de)
Verfahren und Vorrichtung zum Enfernen von Stanznieten
Title (fr)
Procédé et dispositif d'enlèvement de rivets poinçonnants
Publication
Application
Priority
DE 10012845 A 20000316
Abstract (en)
The invention relates to a process and a device for removing punch rivets (23) set in a workpiece (12,13), which are tubular and axisymmetric in design. Upon setting of the punch rivet (23) a punched-out piece (21) remaining therein is removed by a tool (18) and thereafter a threaded mandrel (20) is screwed into the punch rivet (23) with simultaneous formation of a substantially continuous distinctive thread. Upon its subsequent withdrawal counter to the pressure of an abutment (22) resting on the workpiece (12,13) the threaded mandrel (20) withdraws the punch rivet (23) from the workpiece (12,13). <IMAGE>
IPC 1-7
IPC 8 full level
B25B 27/067 (2006.01); B21J 15/02 (2006.01); B21J 15/50 (2006.01); B25B 27/073 (2006.01)
CPC (source: EP)
B21J 15/025 (2013.01); B21J 15/50 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1136155 A2 20010926; EP 1136155 A3 20020206; DE 10012845 A1 20010920; JP 2001293536 A 20011023
DOCDB simple family (application)
EP 01302304 A 20010313; DE 10012845 A 20000316; JP 2001075556 A 20010316