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发明授权
CN1523156B 缝纫机 失效 - 权利终止

缝纫机
摘要：
一种缝纫机包括安装有用于固定针的针杆的缝纫头、装配在所述缝纫头上以便能切断穿过针眼的线的线头的切线刀片和装配在所述缝纫头上以便能在线头被切下后保持所述线头的保持器，设置在缝纫头中用于把线导引到切线刀片处的导引器；所述切线刀片定位成从安装在缝纫头上的针的针眼至由保持器所保持的线头的第一线量等于缝制操作开始后能把所述线头拉到布料下面刚形成针迹中的第二线量；切线刀片、保持器及导引器组成持线件；并且所述切线刀片和导引器靠近作为单个部件的保持器地定位，并且该保持器安装在缝纫头上。
摘要（英）：

A sewing machine includes a head on which a needle bar for fixing a needle is mounted, a thread cutting blade mounted in the head so as to be capable of cutting an end of a thread which is threaded soas to be passed through an eye of the needle, and a holder mounted in the head so as to be capable of holding the thread end after the thread end has been cut by the thread cutting blade. The threadcutting blade is positioned so that a first amount of thread from the eye of the needle mounted in the head to the thread end held by the holder equals a second amount of thread by which the thread end is drawn to an underside of a cloth in a stitch formed immediately after start of a sewing operation.

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