EP 2801651 A1 20141112 - Thread routing mechanism for sewing machine
Title (en)
Thread routing mechanism for sewing machine
Title (de)
Fadenverlegungsmechanismus für Nähmaschine
Title (fr)
Mécanisme de routage de fil pour machine à coudre
Publication
Application
Priority
EP 13167371 A 20130510
Abstract (en)
A thread routing mechanism for sewing machine includes a cylindrical needle bar case having a rotation axis and holding multiple spaced needle bars that are equally distant from the rotation axis and respectively carry a needle having an eye; a locating disk moving synchronously with the needle bar case and having multiple thread guide holes spaced around the rotation axis; and a thread take-up lever having a thread take-up end with multiple thread holes and movable upward and downward in a space directly above the needle bar case. Each thread hole together with a corresponding thread guide hole and a corresponding eye define a thread course, such that threads respectively routed through the thread courses have the same length even when the needle bars are changed from one to another. A thread pinching unit is also included to pinch or release the threads in or from the thread guide holes.
IPC 8 full level
D05B 49/00 (2006.01); D05C 11/10 (2006.01)
CPC (source: EP)
D05B 49/00 (2013.01); D05C 11/10 (2013.01)
Citation (search report)
- [A] US 4448139 A 19840515 - DOROSZ ADOLPH S [US]
- [A] US 2007101916 A1 20070510 - ISHIHARA KIYOYUKI [JP]
- [A] EP 0137996 A2 19850424 - ZSK STICKMASCH GMBH [DE]
- [A] EP 2107147 A1 20091007 - STUTZNAECKER EMIL NAEHMASCH [DE]
- [A] US 5495816 A 19960305 - SANVITO ROBERTO [IT], et al
- [A] EP 1281800 A2 20030205 - PEGASUS SEWING MACHINE MFG CO [JP]
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 13167371 A 20130510