Thread tensioning device for a sewing machine

Details Thread tensioning device for a sewing machine Thread tensioning device for a sewing machine

1995-08-15

1996-11-12

Mansen, Michael R.

Winding, tensioning, or guiding

Strand tensioning device

Clamp

112254, B65H 5922

Patent

active

055731929

ABSTRACT:
A thread tensioning device for a sewing machine includes two plates engaged on a shaft and a spring for biasing the plates toward each other in order to clamp a thread. The plates each includes a thread receiving portion and each includes another portion opposite to the thread receiving portion. A projection is engaged between the opposite portions so as to separate the opposite portions away from each other and so as to form a closely contacted outer peripheral portion in the thread receiving portions, and in order to force the thread toward the shaft.

REFERENCES:
patent: 3347195 (1967-10-01), Gegauf
patent: 3709332 (1973-01-01), Rosen
patent: 4123984 (1978-11-01), Coulombe
patent: 5042407 (1991-08-01), Jimenez
patent: 5191847 (1993-03-01), Kojima et al.

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