Sewing machine feed mechanism

Details Sewing machine feed mechanism Sewing machine feed mechanism

1985-02-27

1985-12-03

Hunter, H. Hampton

Sewing

Special machines

Darning

112104, 112308, D05B 2100, D05B 2700

Patent

active

045559988

ABSTRACT:
A sewing assembly equipped with a feed mechanism comprises a work holder which is supported by two swing arms hinged to each other, and moved by two stationary positioning motors. Each of the positioning motors is in positive drive connection with a slide carrying one of the swing arms. The swing arm directly carrying the work holder comprises a non-buckling center bar, a cross bar, and two prestressed spring steel strips by which the ends of the cross bar are connected to the end close to the swing axis of the center bar. The two member linkage with the stationary motors and the light-weight and yet non-bending swing arm result in a very low inertia of the feed mechanism.

REFERENCES:
patent: 3742879 (1973-07-01), Schaefer, Jr. et al.
patent: 3974787 (1976-08-01), Kraatz et al.
patent: 3983825 (1976-10-01), Dobner et al.
patent: 4002129 (1977-01-01), Kraatz
patent: 4419946 (1983-12-01), Fischer et al.
patent: 4455956 (1984-06-01), Yamamoto et al.

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