Needle-bar driving device

Details Needle-bar driving device Needle-bar driving device

1992-08-27

1994-08-23

Crowder, Clifford D.

Sewing

Elements

Driving mechanisms

112163, D05B 6900, D05B 108

Patent

active

053397576

ABSTRACT:
A needle-bar driving device of a sewing machine, for oscillating a needle bar supporting at a lower end thereof a sewing needle, in the axial direction of the needle bar, including a dead-position changing apparatus for changing at least one of an upper and a lower dead position of the needle bar.

REFERENCES:
patent: 3653346 (1972-04-01), Parsons
patent: 3881432 (1975-05-01), Dodd et al.
patent: 4485752 (1984-12-01), Slomma et al.
patent: 4569297 (1986-02-01), Dusch
patent: 4580515 (1986-04-01), Shinoda
patent: 4641591 (1987-02-01), Draghicchio
patent: 5056444 (1991-10-01), Lowry et al.

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