Sewing machine with a sewing head including a rotary housing

Details Sewing machine with a sewing head including a rotary housing Sewing machine with a sewing head including a rotary housing

1990-12-17

1992-02-25

Schroeder, Werner H.

Sewing

Special machines

Darning

112221, D05B 2100, D05B 6900

Patent

active

050903420

ABSTRACT:
A sewing machine has a sewing head with a rotary housing, in which a needle bar is arranged, which is slidably supported. A 1st partial transmission unit and a 2nd partial transmission unit are provided as a drive and have a total transmitting ratio of 1. In order to make the moment of inertia of the rotary housing as small as possible, the transmitting ratio of the 1st partial transmission unit is smaller than 1 and the transmitting ratio of the 2nd partial transmission unit is correspondingly larger than 1.

REFERENCES:
patent: 4541348 (1985-09-01), Fischer
patent: 4553489 (1985-11-01), Landwehr
patent: 4574718 (1986-03-01), Scholl et al.
patent: 4594954 (1986-06-01), Bernewasser
patent: 4787324 (1988-11-01), Fischer et al.
patent: 4787326 (1988-11-01), Scholl et al.
patent: 4817543 (1989-04-01), Fischer
patent: 4926769 (1990-05-01), Upmeier

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