Sewing – Work manipulating – Rufflers and gatherers
Patent
1997-04-02
1998-06-23
Nerbun, Peter
Sewing
Work manipulating
Rufflers and gatherers
D05B 3508
Patent
active
057690146
ABSTRACT:
A ruffling device adapted for mounting on a sewing machine, includes: a base for attachment to a presser bar of the sewing machine, a pivotal lever mounted on the base connected to a needle bar of the sewing machine, so that the pivotal lever may be reciprocally pivoted as a needle-bar is vertically reciprocally moved; a work folding lever for folding a work fabric and movable in forward and rearward directions with respect to a feeding direction of the work fabric for a sewing operation, a motion conversion mechanism for converting the pivotal movement of the pivotal lever into the forward and rearward movement of the work folding lever, so that the work folding lever cooperates with a presser foot mounted on the base for forming a ruffle on the work fabric, a timing adjusting device for adjusting an operation timing of the work folding lever, and a stroke adjusting device for adjusting a stroke of movement of the work folding lever.
REFERENCES:
patent: 4108094 (1978-08-01), Weigert
patent: 5315942 (1994-05-01), Pantusco et al.
patent: 5562058 (1996-10-01), Niino
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