EP 0264515 A1 19880427 - Thread feeding apparatus for a sewing machine.
Title (en)
Thread feeding apparatus for a sewing machine.
Title (de)
Fadenzufuhrvorrichtung für Nähmaschine.
Title (fr)
Dispositif d'amenée du fil supérieur sur une machine à coudre.
Publication
Application
Priority
- JP 11951785 A 19850601
- JP 15802486 A 19860707
Abstract (en)
An apparatus for feeding thread for a sewing machine comprising a thread feeding system for guiding the thread (14) from a spool (13) to a take-up lever (2) of the sewing machine (A). The thread feeding device is comprised of a pressure roller (10) and a feed roller (8) driven by a motor, an encoding device (17) installed on the main drive shaft of the sewing machine, an encoder (8a) for measuring the length of the thread fed, and a thread holding device (11), whereby when the encoding device (17) gives the signal to the thread holding device to release the thread, the thread feeding device feeds the thread for completing one full stitch, and the encoder (8a) actuates the thread holding device (11) to hold the thread during the stitching. A second embodiment of the apparatus disclosures another thread holding device (7) which is installed between the take-up lever and the thread feeding device whereby the thread holding device grips the thread before the take-up lever starts tightening the stitch.
IPC 1-7
IPC 8 full level
D05B 45/00 (2006.01); D05B 47/04 (2006.01); D05B 51/00 (2006.01)
CPC (source: EP)
D05B 45/00 (2013.01); D05B 47/04 (2013.01); D05B 51/00 (2013.01); D05D 2207/05 (2013.01)
Citation (search report)
- [A] DE 3102048 A1 19811203 - BROTHER IND LTD [JP]
- [A] GB 2015596 A 19790912 - SINGER CO
- [A] US 4215641 A 19800805 - DOBRJANSKYJ LEO [US], et al
- [AP] EP 0189682 A1 19860806 - MATSUBARA TORU
- [A] DE 3341986 A1 19850530 - TOKYO JUKI INDUSTRIAL CO LTD [JP]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 86850187 A 19860624