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    • 20. 发明授权
    • Sewing machine and computer readable medium
    • 缝纫机和计算机可读介质
    • US08037834B2
    • 2011-10-18
    • US12216299
    • 2008-07-02
    • Masaki ShimizuHiroshi YamasakiHirokazu Hirose
    • Masaki ShimizuHiroshi YamasakiHirokazu Hirose
    • D05B19/00
    • D05B19/12D05B45/00D05B69/14
    • A sewing machine includes a sewing machine motor that vertically drives a sewing needle via a main shaft; a sewing speed commander that produces a command sewing speed determined by rotational speed of the sewing machine motor; a stitch-pitch specifier that specifies a stitch pitch to be applied to manually fed sewing operation; a consumed thread amount detector that detects a consumed needle-thread amount in each ongoing sewing cycle; a sewing speed controller that controls sewing speed at the command sewing speed when the command sewing speed is equal to or less than a predetermined reference sewing speed, and that controls sewing speed at a target sewing speed calculated based on the consumed needle-thread amount and the stitch pitch when the command sewing speed is greater than the reference sewing speed.
    • 缝纫机包括通过主轴垂直地驱动缝纫针的缝纫机马达; 缝制速度指令器,其产生由缝纫机马达的转速确定的指令缝纫速度; 指定用于手动进给缝纫操作的针脚间距的针迹间距说明符; 消耗的线量检测器,其检测每个正在进行的缝合循环中的消耗的针线量; 缝制速度控制器,其在指令缝制速度等于或小于预定参考缝纫速度时以指令缝制速度控制缝纫速度,并且控制基于消耗的针数量计算的目标缝纫速度的缝纫速度,以及 指令缝纫速度大于参考缝纫速度时的针距。