发明名称 |
Automatic sewing machine having a driving mechanism for driving a cloth presser unit according to a sewing pattern |
摘要 |
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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申请公布号 |
US5372078(A) |
申请公布日期 |
1994.12.13 |
申请号 |
US19920900588 |
申请日期 |
1992.06.18 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
HOSHINA, NOZOMI;YAMANE, IWAO;NISHIZAWA, YOSHIFUMI |
分类号 |
D05B21/00;D05B19/16;D05B69/18;(IPC1-7):D05B21/00 |
主分类号 |
D05B21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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