Sewing – Special machines – Darning
Patent
1992-06-18
1994-12-13
Nerbun, Peter
Sewing
Special machines
Darning
D05B 2100
Patent
active
053720784
ABSTRACT:
An automatic sewing machine control device in which the movement of the presser unit which takes place while the thread take-up lever moves from the bottom dead point to the top dead point is minimized thereby to increase the tension of the upper thread. Even when the load weight applied to a bi-axial drive mechanism increases or the thickness of the sewing material changes, excellent seams can be formed. In a control device for an automatic sewing machine, a start timing unit is provided which starts the bi-axial drive mechanism with respective timing modes. A plurality of drive control data for a drive motor and stepping motors are stored in memory unit which correspond to the load weights applied to the bi-axial drive mechanism and the thicknesses of materials to be sewed.
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patent: 5065684 (1991-11-01), Hansberry
Hoshina Nozomi
Nishizawa Yoshifumi
Yamane Iwao
Mitsubishi Denki & Kabushiki Kaisha
Nerbun Peter
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