Global Patent Index - EP 1847641 A1

EP 1847641 A1 2007-10-24 - Thread drawing knife for a sewing machine

Title (en)

Thread drawing knife for a sewing machine

Title (de)

Fadenziehmesser für eine Nähmaschine

Title (fr)

Couteau tireur de fil pour une machine à coudre

Publication

EP 1847641 A1 (DE)

Application

EP 07007046 A

Priority

  • DE 102006019193 A
  • DE 202006009410 U

Abstract (en)

The second rotation stop (38) is fastened to the thread-pulling blade (29). A positioning restraint (41) secures the thread-pulling blade in the normal position when the shuttle (19) turns in the opposite direction. In this position the second rotation stop (38) works with the second spool casing stop (40). The second stop is molded-on integrally with the thread-pulling blade. A projection (39) opposite the second stop on the thread-pulling blade, transitions smoothly into the blade body. A deflection mechanism operates with the thread pulling blade drive (49), this causes displacement of the blade from its normal position, into a thread-gripping position, by moving the positioning restraint into a release position. Further mechanical details of the mechanism are provided. The thread pulling blade drive includes an electromagnet.

Abstract (de)

Die Erfindung betrifft ein Fadenziehmesser (29) für eine Nähmaschine (1), wobei die Nähmaschine einen um eine vertikale Greiferachse (23) in einer Nähbetriebs-Drehrichtung (24) drehbaren Greifer (19) umfasst, der einen Greiferkörper (20) aufweist, in dem ein Spulengehäuse (22) zur Aufnahme eines Greiferfadenvorrats aufgenommen ist, wobei das Fadenziehmesser (29) zwischen einer Grundstellung (Fig. 2) und einer Fadenerfassungsstellung (Fig. 4) um eine zur Greiferachse (23) parallele Schwenkachse (30) oberhalb des Spulengehäuses (22) verschwenkbar ist, im Bereich eines sich entgegen der Nähbetriebs-Drehrichtung (24) erstreckenden freien Endes des Fadenziehmessers (29) eine Fadenerfassungsnut (31) mit einer bodenseitigen Schneide (32) aufweist mit einen über die Fadenerfassungsnut (31) hinaus verlängerten freien Endabschnitt (32c).

IPC 8 full level (invention and additional information)

D05B 65/00 (2006.01); D05B 57/14 (2006.01)

CPC (invention and additional information)

D05B 65/00 (2013.01); D05B 57/143 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

EPO simple patent family

DE 202006009410 U1 20070830; AT 457381 T 20100215; DE 502007002792 D1 20100325; EP 1847641 A1 20071024; EP 1847641 B1 20100210; JP 2007289692 A 20071108; KR 101389651 B1 20140429; KR 20070104240 A 20071025

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