EP 2671981 B1 20160817 - Spinning or twisting ring
Title (en)
Spinning or twisting ring
Title (de)
Spinn- oder Zwirnring
Title (fr)
Métier à filer ou à retordre
Publication
Application
Priority
CH 8012012 A 20120608
Abstract (en)
[origin: EP2671981A2] The ring (1) has a bar (3) arranged between a foot flange (2) and a ring crown (4) and exhibiting an internal diameter (5) and a height (6), where the ring is integrally manufactured by a deep-drawing method. The foot flange exhibits a foot flange thickness. An inner transition region (8) from the bar into the foot flange exhibits an inner radius of 1.0-1.5 mm. An outer transition region (7) from the bar into the foot flange exhibits an outer radius of 0.2-0.4 mm. The foot flange extends into a region of the bar internal diameter.
IPC 8 full level
B21D 51/16 (2006.01); D01H 7/60 (2006.01)
CPC (source: EP)
B21J 5/08 (2013.01); B21K 21/12 (2013.01); D01H 7/602 (2013.01); B21D 53/16 (2013.01)
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
DOCDB simple family (publication)
EP 2671981 A2 20131211; EP 2671981 A3 20150422; EP 2671981 B1 20160817; CH 706605 A1 20131213; CN 103484996 A 20140101; CN 103484996 B 20170524
DOCDB simple family (application)
EP 13002247 A 20130426; CH 8012012 A 20120608; CN 201310224924 A 20130607