Sewing machine with a needle bar mounted in a swinging frame

Details Sewing machine with a needle bar mounted in a swinging frame Sewing machine with a needle bar mounted in a swinging frame

1989-04-12

1991-01-01

Falik, Andrew M.

Sewing

Elements

Driving mechanisms

112165, 112322, D05B 5514

Patent

active

049810936

ABSTRACT:
A sewing machine has a needle bar, which is mounted in a frame, a continuously operating feed device for the workpiece, a looper which reciprocates transversely to the workpiece feed direction, a spindle which is mounted in the sewing machine arm, and a cam, which is disposed on the arm spindle in order to swing the frame in the workpiece feed direction. The frame is driven in dependence upon the movement of the arm spindle by way of a positively connected transmission. Two cams permit optimum adaptation of the swinging movement of the frame to the continuously moving workpiece.

REFERENCES:
patent: 3274963 (1966-09-01), Keller et al.
patent: 3460494 (1969-08-01), Denker
patent: 4441441 (1984-04-01), Bianchi
patent: 4582007 (1986-04-01), Yamazawa et al.

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