EP 0127837 B1 19871209 - METHOD AND ARRANGEMENT FOR THE PRODUCTION OF SCORING LINES IN SHEET METAL, PARTICULARLY FOR THE PRODUCTION OF TEAR-OFF TOPS OF CANS OR THE LIKE CONTAINERS
Title (en)
METHOD AND ARRANGEMENT FOR THE PRODUCTION OF SCORING LINES IN SHEET METAL, PARTICULARLY FOR THE PRODUCTION OF TEAR-OFF TOPS OF CANS OR THE LIKE CONTAINERS
Publication
Application
Priority
DE 3319949 A 19830601
Abstract (en)
[origin: EP0127837A2] 1. Process for producing tear-open lines in metal sheets (1), in particular for the manufacture of tear-open ends for cans or similar containers, for which the metal sheet (1) is placed on an anvil-like support (3) and a score line is produced by impressing the stamping or scoring edges (5) of a stamping die (2), the shape of which corresponds to that of the tear-open line, to a pre-determined penetration depth, characterized by the support (3) and the stamping die (2) being each formed of individual segments and composed such that score line portions, which are inclined against each other at an acute angle, are consecutively impressed using one individual segment each of the support (3) and the stamping die (2) jointly, with a first portion of the score line being produced first and a further portion of the score line being produced next in a position relative to the first score line portion such that the two score line portions intersect at the vertex of the angle formed between them.
IPC 1-7
IPC 8 full level
B21D 51/38 (2006.01); B21D 51/44 (2006.01)
CPC (source: EP)
B21D 51/383 (2013.01)
Designated contracting state (EPC)
AT BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0127837 A2 19841212; EP 0127837 A3 19850529; EP 0127837 B1 19871209; AT E31258 T1 19871215; DE 3319949 A1 19841206; DE 3467982 D1 19880121; DK 270484 A 19841202; DK 270484 D0 19840530; ES 291996 U 19871101; ES 291996 Y 19880516; NO 159705 B 19881024; NO 159705 C 19890201; NO 842161 L 19841203
DOCDB simple family (application)
EP 84105832 A 19840522; AT 84105832 T 19840522; DE 3319949 A 19830601; DE 3467982 T 19840522; DK 270484 A 19840530; ES 291996 U 19840528; NO 842161 A 19840530