发明授权
- 专利标题: Regulating device for handling a needle thread in a multi-needle double chain stitch sewing machine
- 专利标题(中): 用于处理多针双链缝纫机中的针线的调节装置
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申请号: US10209715申请日: 2002-07-31
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公开(公告)号: US06729251B2公开(公告)日: 2004-05-04
- 发明人: Masahiko Nishikawa , Osamu Doyasu , Hiroyuki Iuchi
- 申请人: Masahiko Nishikawa , Osamu Doyasu , Hiroyuki Iuchi
- 优先权: JP2001-234367 20010802
- 主分类号: D05B4900
- IPC分类号: D05B4900
摘要:
A thread taking-up tool is attached to a needle bar sticking out of a sewing machine head, and its leading end has a plurality of thread holes. The thread holes of the thread taking-up tool are arranged in the lateral direction. A thread handling body has a cam face in the vertical direction. Needle threads from a tension device to needles are controlled by the vertical motion of the thread taking-up tool and the action of the cam face of the thread handling body. When the needles ascend from the lowest position, an endless hook attached to the thread taking-up tool is engaged with the left needle thread between the cam face lower end and the thread hole of the thread taking-up tool. Each thread is handled in with the left needle thread staying at the cam face lower end, so that the needle thread loop at the remotest end is absorbed surely.