Multi-needle sewing machine

Details Multi-needle sewing machine Multi-needle sewing machine

2008-01-29

2008-01-29

Izaguirre, Ismael (Department: 3765)

Sewing

Elements

Thread guiding or handling

C112S241000

Reexamination Certificate

active

07322304

ABSTRACT:
A multi-needle sewing machine capable of preventing twisting (twinning) associated with the oversupply state of a second thread element owing to the abrupt lowering of a thread take-up am even when the vertical reciprocation speeds of the needle bar and the thread take-up are increased to raise the efficiency of sewing. A recess is formed so that the second thread element that is pulled using the through hole of the thread take-up arm while at a bottom dead center can fall into the recess, the thread is lowered abruptly and is in a oversupply state and can be deflected within the recess bounded by jump preventing faces and a beaten thread portion face, so as to make contact with the faces and prevent the thread from jumping.

REFERENCES:
patent: 3782312 (1974-01-01), Kasuga
patent: 5642678 (1997-07-01), Mizunuma et al.
patent: 5655471 (1997-08-01), Tajima
patent: 5957069 (1999-09-01), Shibata
patent: 6247419 (2001-06-01), Tajima et al.
patent: 6729251 (2004-05-01), Nishikawa et al.
patent: 09-000765 (1997-01-01), None

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