Global Patent Index - EP 2034074 A1

EP 2034074 A1 20090311 - Thread cutting apparatus for sewing machine

Title (en)

Thread cutting apparatus for sewing machine

Title (de)

Fadenschneidevorrichtung für Nähmaschine

Title (fr)

Appareil de découpe de fils pour machine à coudre

Publication

EP 2034074 A1 20090311 (EN)

Application

EP 08015762 A 20080905

Priority

JP 2007229997 A 20070905

Abstract (en)

A thread cutting apparatus for a sewing machine according to the present invention is arranged in which a spindle for supporting a movable knife beneath a needle plate is located closer to the location of an upper thread loop than the location of a needle hole provided in the needle plate. The apical portion of the movable knife faces the loop opening of the upper thread loop frontwardly of the location of the needle hole. The apical portion of the movable knife that oscillates forward and backward around the spindle enters the loop opening of the upper thread loop from a direction perpendicular to the loop opening. Even when the upper thread loop is interrupted in the shape by the development of a hitch stitch, the movable knife can certainly catch the upper thread loop and cut the threads in combination with a stationary knife.

IPC 8 full level

D05B 65/02 (2006.01); D05B 69/22 (2006.01)

CPC (source: EP KR)

D05B 65/00 (2013.01 - KR); D05B 65/02 (2013.01 - EP KR); D05B 65/06 (2013.01 - KR); D05B 69/22 (2013.01 - EP)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE IT

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

EP 2034074 A1 20090311; EP 2034074 B1 20100324; CN 101381932 A 20090311; CN 101381932 B 20130320; DE 602008000862 D1 20100506; JP 2009061020 A 20090326; KR 101079498 B1 20111103; KR 20090025170 A 20090310

DOCDB simple family (application)

EP 08015762 A 20080905; CN 200810215717 A 20080902; DE 602008000862 T 20080905; JP 2007229997 A 20070905; KR 20080087529 A 20080905