Sewing – Stitch forming – Feeding work material
Patent
1989-04-26
1991-06-11
Falik, Andrew M.
Sewing
Stitch forming
Feeding work material
11212126, 112306, 112103, 26 96, 226 53, 226 74, D05B 3500
Patent
active
050223364
ABSTRACT:
An apparatus for feeding a sewing machine with a textile fabric with opposite side hems. The sewing machine has a needle assembly and a bobbin assembly which are vertically aligned with each other to sew a textile fabric placed at a position between the needle and bobbin assemblies. The feeding apparatus is designed to set and withdraw the fabric into and from said position. The feeding apparatus includes two sets of rotary wheels that can be disposed respectively at the opposite sides of the sewing machine; a pair of loop members wrapped respectively around the two sets of wheels so that elements of each of the loop members can move around the respective sets of wheels with at least one section of their path being horizontal, and each loop member is spaced from and parallel to the horizontal section of the path of the other loop member's elements that move around the sets of wheels; a motor drivingly connected to one of each set of wheels, for driving the elements of the loop member synchronously with those of the other so that, within the horizontal sections of the paths, the loop member's elements are moved in the same direction; and a pair of holding mechanisms, mounted respectively on the loop members, for holding the opposite side hems of the fabric to hold the fabric between the pair of holding mechanisms at the respective horizontal sections of the loop path. Each of the holding mechanisms includes a plurality of spike members disposed around the corresponding loop member, the spike members being pointed upward when the spike members are in the corresponding horizontal section, so as to pierce the corresponding side hem of the fabric horizontally disposed.
REFERENCES:
patent: 1238576 (1917-08-01), Schneebeli et al.
patent: 3500777 (1970-03-01), Kalning et al.
patent: 3887121 (1975-06-01), Reich
patent: 4434729 (1984-03-01), Davidson
patent: 4541353 (1985-09-01), Engle
Falik Andrew M.
Prince Sewing Machine Co., Ltd.
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