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    Thread feed mechanism in sewing machine
    2.
    发明公开
    Thread feed mechanism in sewing machine 失效
    FadenzufuhrvrichrichtungfürNähmaschine。

    公开(公告)号：EP0179928A1

    公开(公告)日：1986-05-07

    申请号：EP84111646.0

    申请日：1984-09-28

    申请人： JUKI CORPORATION

    发明人： Sakuma, Kuniharu ,  Goto, Sumio

    IPC分类号： D05B47/00

    CPC分类号： D05B51/00

    摘要： @ A thread feed mechanism in a sewing machine for paying-out thread in a predetermined amount necessary for forming one seam. The thread feed mechanism comprises a first signal generation device for producing feed amount and needle bar amplitude signals, a second signal generation device for producing a workpiece thickness signal, first means for adding square values of feed amount and amplitude signals, second means for multiplying a square root of the first means by a coefficient, third means for producing a signal varying depending upon the operation mode thereof, fourth means for multiplying an workpiece thickness signal by the output of the third means, and fifth means for adding the outputs of the second, third and fourth means.

    摘要翻译： 缝纫机中的线进给机构，用于以预定量形成一个接缝所需的出线螺纹。 线进给机构包括用于产生进给量和针杆振幅信号的第一信号产生装置，用于产生工件厚度信号的第二信号产生装置，用于添加进给量和振幅信号的平方值的第一装置，用于将 第一装置的平方根乘以系数，第三装置，用于产生根据其操作模式而变化的信号;第四装置，用于将工件厚度信号乘以第三装置的输出;以及第五装置，用于将第二装置的输出相加 ，第三和第四手段。

    Thread breakage or exhaustion detector for sewing machine
    4.
    发明公开
    Thread breakage or exhaustion detector for sewing machine 失效
    用于缝纫机的断线或耗尽检测器

    公开(公告)号：EP0158708A2

    公开(公告)日：1985-10-23

    申请号：EP84111647.8

    申请日：1984-09-28

    申请人： JUKI CORPORATION

    发明人： Iimura, Ikurou ,  Sakuma, Kuniharu ,  Iwabuchi, Haruo

    IPC分类号： D05B51/00

    CPC分类号： D05B51/00

    摘要： A drive control mechanism and a safety device in a sewing machine in which thread in a predetermined amount necessary for the formation of one seam each time a seam is to be formed. The drive control mechanism comprises a control circuit for allowing current to flow to a machine motor when no thread amount signal is produced though a position signal is produced at the start of the machine. The safety device comprises a thread paying-out detection circuit operable when a position signal is produced. but no thread amount signal is produced, an alarm for producing a sound or light warning in response to the operation of the thread paying-out detection circuit and a motor stop circuit for inturrupting flow of current to a machine motor.

    摘要翻译： 一种缝纫机中的驱动控制机构和安全装置，其中每次形成接缝时形成一个接缝所需的预定量的螺纹。 驱动控制机构包括一个控制电路，当电机起动时产生一个位置信号时，当没有线量信号产生时允许电流流向机器马达。 安全装置包括当产生位置信号时可操作的线程支出检测电路。 但是不产生线量信号，响应于线送出检测电路的操作产生声音或灯警告的警报，以及用于促使电流流向机器电动机的电动机停止电路。