EP 0783384 B1 20021002 - METHOD AND APPARATUS FOR JOINING SHEET MATERIAL AND JOINT FORMED THEREIN
Title (en)
METHOD AND APPARATUS FOR JOINING SHEET MATERIAL AND JOINT FORMED THEREIN
Title (de)
VERFHREN UND GERÄT ZUM VERBINDEN VON BLECHEN UND DARIN HERGESTELLTE VERBINDUNG
Title (fr)
PROCEDE ET APPAREIL D'ASSEMBLAGE D'UN MATERIAU EN FEUILLE ET ASSEMBLAGE OBTENU
Publication
Application
Priority
US 9408413 W 19940722
Abstract (en)
[origin: WO9603232A1] The present invention apparatus for joining sheet material provides a stepped punch (38). This stepped punch (38) serves to strengthen a joint (14) between two or more sheets of material (16 and 18) by creating a stepped segment (122) in at least one of these sheets of material. During formation of this stepped segment (122), material is forcibly displaced toward another segment of material that is outwardly expanded to interlock with the adjacent sheet of material.
IPC 1-7
IPC 8 full level
B23P 11/00 (2006.01); B21D 39/03 (2006.01)
CPC (source: EP)
B21D 39/031 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 9603232 A1 19960208; AU 7514794 A 19960222; DE 69431490 D1 20021107; DE 69431490 T2 20030626; EP 0783384 A1 19970716; EP 0783384 A4 19980107; EP 0783384 B1 20021002; JP H10503427 A 19980331
DOCDB simple family (application)
US 9408413 W 19940722; AU 7514794 A 19940722; DE 69431490 T 19940722; EP 94925111 A 19940722; JP 50570096 A 19940722