Sewing machine having auxiliary work turning needle

Details Sewing machine having auxiliary work turning needle Sewing machine having auxiliary work turning needle

1984-07-05

1985-09-24

Schroeder, Werner H.

Sewing

Stitch forming

Feeding work material

112DIG3, 11212111, 112131, 112221, D05B 3504

Patent

active

045427070

ABSTRACT:
An auxiliary needle is supported by a shiftable and rotatable slide rod which extends in a slightly inclined position relative to the vertical and is guided by an extension in a guide slot. The upper portion of the guide slot extends at an angle relative to the slide rod. Therefore, if moved from its rest position downwardly into its working position, the auxiliary needle performs first a combined rotary and translational motion, and then, upon penetrating a workpiece, only a straight longitudinal motion.

REFERENCES:
patent: 1330601 (1920-02-01), Miller
patent: 3948194 (1976-04-01), Gunold
patent: 4366763 (1983-01-01), Teetz et al.
patent: 4388880 (1983-06-01), Ciucani

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