EP 3498392 A1 20190619 - RIGID SHEET BLANK AND METHOD FOR PRODUCING SAME
Title (en)
RIGID SHEET BLANK AND METHOD FOR PRODUCING SAME
Title (de)
STARRER BOGENROHLING UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
ÉBAUCHE DE FEUILLE RIGIDE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
EP 17315012 A 20171213
Abstract (en)
A rigid sheet blank (10) including a first section and an adjacent second section configured to be bent relative to the first section. A seam (30) separates the first section from the second section to facilitate bending of the first and second sections relative to one another. The seam (30) defines a seam axis (32) and includes at least one cut (34) through a material of the rigid sheet blank (10). Each of the at least one cut (34) includes a main portion (40) that is elongated such as to extend along a direction parallel to the seam axis (32), a first extension (42) extending from a first end (46) of the main portion (40) and being generally perpendicular to the main portion (40), and a second extension (44) extending from a second end (48) of the main portion (40) and being generally perpendicular to the main portion (40). The first and second extensions (42, 44) extend on a same side of the main portion (40).
IPC 8 full level
B21D 39/03 (2006.01); B21D 51/06 (2006.01); B21D 51/52 (2006.01)
CPC (source: EP)
B21D 39/032 (2013.01); B21D 51/06 (2013.01); B21D 51/52 (2013.01)
Citation (search report)
- [X] JP S5370069 A 19780622 - NIPPON ELECTRIC CO
- [X] WO 0213991 A1 20020221 - CASTLE INC [US], et al
- [A] US 2003037586 A1 20030227 - DURNEY MAX W [US], et al
- [A] DE 20202100 U1 20020613 - FICHTNER FRANK [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 17315012 A 20171213