EP 1134165 A3 20030528 - Method and apparatus for toughening metal strap buckles
Title (en)
Method and apparatus for toughening metal strap buckles
Title (de)
Verfahren und Vorrichtung zur Erhöhung der Zähigkeit von metallischen Gurtbandschnallen
Title (fr)
Méthode et dispositif pour augmenter la ténacité de boucles métalliques de sangles
Publication
Application
Priority
US 52552500 A 20000315
Abstract (en)
[origin: EP1134165A2] The invention relates to a metal tie buckle made from a single piece of rounded wire that has been bent into a predetermined configuration, wherein two pairs of strap engaging arms that are essentially parallel to one another are provided for securing the buckle to the strap. The buckle has been treated with a hardening process, such as carburizing, carbonitriding, nitriding and induction hardening, that strengthens and toughens the buckle. This helps to keep the arms parallel and prevents the propensity of the buckle to achieve plastic deformation, which in turn helps to prevent the strap from being pinched, or otherwise causing uneven stress on the strap, which could result in premature failure of the strap. <IMAGE>
IPC 1-7
IPC 8 full level
B65D 63/16 (2006.01)
CPC (source: EP)
B65D 63/16 (2013.01)
Citation (search report)
- [Y] FR 1305668 A 19621005 - AMERICAN VISCOSE CORP
- [Y] US 5249347 A 19931005 - MARTINITZ FRANZ W [CA]
- [A] WO 9726379 A1 19970724 - MICHELIN & CIE [FR], et al
- [A] US 3924302 A 19751209 - SOMANN GERT P
- [A] GB 849313 A 19600921 - LASALLE STEEL CO
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 1134165 A2 20010919; EP 1134165 A3 20030528; CA 2303693 A1 20000717; CA 2303693 C 20011211
DOCDB simple family (application)
EP 01106286 A 20010315; CA 2303693 A 20000328