Feed reference point balancing device of sewing machine

Details Feed reference point balancing device of sewing machine Feed reference point balancing device of sewing machine

1984-03-30

1985-09-17

Hunter, H. Hampton

Sewing

Stitch forming

Feeding work material

112220, 112284, D05B 2722

Patent

active

045413541

ABSTRACT:
In a fabric feeding mechanism of a sewing machine there are provided a pair of elastic members each connected between two pivot axes at both ends of each of a pair of link elements. The elastic members have their pitches slightly different from those of the corresponding link elements and elastically displaceable in the longitudinal direction of the latter, so that backlash which may be caused at the pivot axes by abrasion resulting from repeated use of the sewing machine will be absorbed to thereby maintain a predetermined feed referenced point thereof.

REFERENCES:
patent: 1543945 (1925-06-01), Moffatt
patent: 1543946 (1925-06-01), Moffatt
patent: 4196682 (1980-04-01), Hanyu et al.
patent: 4295434 (1981-10-01), Hsiao

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