Pivoting feed roller

Details Pivoting feed roller Pivoting feed roller

2006-07-25

2006-07-25

Worrell, Danny (Department: 3765)

Sewing

Stitch forming

Feeding work material

Reexamination Certificate

active

07080605

ABSTRACT:
A pivoting twin roller for feeding a material to a sewing machine is disclosed. The twin rollers grip the material with serrated rollers, which rotate at the same rate for uniformly moving the material relative the sewing machine. The twin rollers press down on the material with equal force due to the central pivot point, which improves the feed of the material. The pivoting twin rollers also allow for automatic feeding of material to the sewing machine. A spring loading on the housing for the pivoting twin rollers applies downward pressure on the material being sewn for a sure grip thereon. The downward pressure also insures that the rollers will press down with equal force on uneven height materials since the pivot adjusts the height of the rollers to the height of the materials and thus prevents floating which can lead to jamming of the sewing machine.

REFERENCES:
patent: 4290376 (1981-09-01), Brusasca et al.
patent: 5010834 (1991-04-01), Iimuro et al.
patent: 5209171 (1993-05-01), Anderson
patent: 5331910 (1994-07-01), Mukai et al.
patent: 5875723 (1999-03-01), Lobur
patent: 6055918 (2000-05-01), Hajjar et al.
patent: 6082277 (2000-07-01), Block et al.

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