Direct drive feed system for sewing machines

Details Direct drive feed system for sewing machines Direct drive feed system for sewing machines

1977-09-14

1978-10-17

Schroeder, Werner H.

Sewing

Work manipulating

Guides

112215, 112220, D05B 2702, D05B 6910

Patent

active

041202546

ABSTRACT:
This disclosure relates to a direct drive feed mechanism for sewing machines which is driven by an electronically controlled reversible electric motor and includes a linearly operable feed dog mechanism which is compact in structure and modular in nature. More particularly, the disclosure of this invention relates to a novel four motion feed mechanism for a sewing machine wherein reciprocating feed motion of the feed dog is initiated by a reversible electric motor which in turn is controlled by electronic logic means. Because of the novel structure of this invention, the feed of the fabric by the machine can be readily controlled so as to be capable of producing a plurality of programmed feed patterns.

REFERENCES:
patent: 2929344 (1960-03-01), Theenhausen et al.
patent: 3195487 (1965-07-01), Reeber
patent: 3343017 (1967-09-01), Pop
patent: 3783812 (1974-01-01), Fersch et al.
patent: 3804044 (1974-04-01), Goetz
patent: 3891876 (1975-06-01), Herr et al.
patent: 3984745 (1976-10-01), Minalga
patent: 4014275 (1977-03-01), Herr et al.

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