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    • 2. 发明授权
    • Sewing machine
    • 缝纫机
    • US08794167B2
    • 2014-08-05
    • US13812589
    • 2011-06-23
    • Yoshichika TakizawaTatsuhiro KurashimaMasayoshi Ono
    • Yoshichika TakizawaTatsuhiro KurashimaMasayoshi Ono
    • D05B49/00D05B47/00
    • D05B47/04D05B51/00D05C11/08
    • There is provided a needle thread tension controller that can control a magnitude of tension on a needle thread for each stitch, that can draw the needle thread with a slim chance of occurrence of a thread break, that easily, accurately detects occurrence of the thread break when the thread break has occurred, and that does not cause any excess or deficiency of a quantity of accumulated thread, which would otherwise be caused by drawing a needle thread. There are provided an upstream grip section 40 and a downstream grip section 60 for gripping a needle thread and a turning section 80 for turning the needle thread. In a torque control zone, rotating force is imparted to a turning arm in accordance with a torque value.
    • 提供了一种针线张力控制器,其可以控制每个线圈的针线张力的大小,从而能够以较小的断线几率绘制针线,从而容易地精确地检测线断裂的发生 当发生断线时,不会导致由于拉丝而引起的累积线数量过多或不足。 设置有用于夹持针线的上游夹持部40和下游握持部60以及用于转动针线的转动部80。 在转矩控制区域中,根据转矩值将转动力赋予转动臂。
    • 3. 发明授权
    • Sewing-machine bobbin thread tension controller, and sewing machine
    • 缝纫机底线张力控制器,缝纫机
    • US08640637B2
    • 2014-02-04
    • US13378142
    • 2010-06-08
    • Yoshichika TakizawaMasayoshi OnoTatsuhiro Kurashima
    • Yoshichika TakizawaMasayoshi OnoTatsuhiro Kurashima
    • D05B3/02D05B19/00
    • D05B63/00D05B57/00D05B57/38D05D2207/06
    • There is provided a sewing-machine bobbin thread tension controller capable of elaborately, accurately controlling bobbin thread tension without depending on frictional force. A bobbin thread tension controller includes an outer shuttle, a middle shuttle presser, a middle shuttle, a bobbin thread tension control mechanism, a shuttle actuation unit, and a bobbin. The middle shuttle has a magnet. A magnet is disposed, in close proximity to the magnet, on an arm attached to a rotary shaft of a shuttle actuation motor provided in the shuttle actuation unit. The middle shuttle is rotated by rotating the magnet by means of the motor. Further, a rotary disc is provided, in close proximity to the middle shuttle, on a rotary shaft of a bobbin thread tension control motor of the bobbin thread tension control mechanism and is provided with a magnet. A magnet is disposed on a part of the bobbin facing the rotary disc.
    • 提供了一种缝纫机底线张力控制器,能够精确地精确地控制底线张力而不依赖于摩擦力。 底线张力控制器包括外梭,中间梭压,中梭,底线张力控制机构,梭动作动单元和筒管。 中间班车有磁铁。 在靠近磁体的位置设置有一个安装在设置在往复致动单​​元中的往复致动马达的旋转轴上的臂上的磁体。 中间梭通过电机旋转磁铁而旋转。 此外,在底线张力控制机构的底线张力控制电动机的旋转轴上设置有紧邻中间梭的旋转盘,并且设置有磁体。 在面向旋转盘的筒管的一部分上设置磁铁。
    • 4. 发明申请
    • SEWING-MACHINE BOBBIN THREAD TENSION CONTROLLER, AND SEWING MACHINE
    • 缝纫机BOBBIN螺纹张力控制器和缝纫机
    • US20120097084A1
    • 2012-04-26
    • US13378142
    • 2010-06-08
    • Yoshichika TakizawaMasayoshi OnoTatsuhiro Kurashima
    • Yoshichika TakizawaMasayoshi OnoTatsuhiro Kurashima
    • D05B63/00D05B57/14
    • D05B63/00D05B57/00D05B57/38D05D2207/06
    • There is provided a sewing-machine bobbin thread tension controller capable of elaborately, accurately controlling bobbin thread tension without depending on frictional force.A bobbin thread tension controller includes an outer shuttle 110, a middle shuttle presser 130, a middle shuttle 150, a bobbin thread tension control mechanism 200, a shuttle actuation unit 250, and a bobbin 300. The middle shuttle 150 has a magnet 190. A magnet 270 is disposed, in close proximity to the magnet 190, on an arm 260 attached to a rotary shaft of a shuttle actuation motor 252 provided in the shuttle actuation unit 250. The middle shuttle 150 is rotated by rotating the magnet 270 by means of the motor 252. Further, a rotary disc 210 is provided, in close proximity to the middle shuttle 150, on a rotary shaft of a bobbin thread tension control motor 202 of the bobbin thread tension control mechanism 200 and is provided with a magnet 214. A magnet is disposed on a part of the bobbin 300 facing the rotary disc 210. The motor 202 rotates the bobbin 300.
    • 提供了一种缝纫机底线张力控制器,能够精确地精确地控制底线张力而不依赖于摩擦力。 底线张力控制器包括外梭110,中间往复压紧机130,中间梭150,底线张力控制机构200,梭动致动单元250和线轴300.中间梭150具有磁体190。 磁体270靠近磁体190设置在臂260上,该臂260附接到设置在往复致动单​​元250中的往复致动马达252的旋转轴。中间梭150通过使磁体270旋转 另外,在底线张力控制机构200的底线张力控制电动机202的旋转轴上,设置有与中间梭150紧密相邻的旋转盘210,并且设置有磁铁214 在绕线筒300的面向旋转盘210的一部分上设置有磁铁。马达202使线轴300旋转。