Sewing machine

Details Sewing machine Sewing machine

2006-12-12

2008-12-30

Welch, Gary L (Department: 3765)

Sewing

Elements

Thread sensing

C112S302000

Reexamination Certificate

active

07469649

ABSTRACT:
Support section for contacting and movably supporting a string-shaped material is provided between a material holder and a guide member, and it supports the material, paid out from the holder, in a slackened condition while it applies a tensile force, corresponding to a state of the contact, to a portion of the material to be directed to the guide member. The consumed amount and the paid-out amount of the material can be controlled to agree with each other, which can prevent any excessive tensile force from being applied to the portion to be supplied to a sewing position and which can reduce the tensile force acting on the material and yet keep the tensile force generally constant. As a result, the string-shaped material can be sewn accurately in an aesthetically pleasing manner.

REFERENCES:
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patent: 5322029 (1994-06-01), Fujita
patent: 5339758 (1994-08-01), Fujita
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patent: 7225747 (2007-06-01), Friman et al.
patent: 7240628 (2007-07-01), Friman et al.
patent: 2003/0140831 (2003-07-01), Zesch et al.
patent: 2005/0199165 (2005-09-01), Friman et al.
patent: 2005/0223958 (2005-10-01), Friman et al.
patent: 2005-144056 (2005-06-01), None

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