Patent ID: 6729251
Filing Date: 2004-05-04
Classification: D05B

Abstract:
A regulating device for handling a needle thread in a multi-needle double chain stitch sewing machine which handles a needle thread from a tension device to needles to loosen thread and to absorbed looseness of thread, said needle thread being arranged in plural sets corresponding to needles, said device comprising:a thread taking-up tool attached to a needle bar moving up and down, said thread taking-up tool having a plurality of thread holes provided at the leading end thereof; a thread handling body attached to the front side of a sewing machine head near the thread taking-up tool, said thread handling body having a cam face extending in the vertical direction; wherein said needles are arranged in a lateral direction, and the thread taking-up tool is provided with thread hooking means for engaging with the needle thread supplied to the needle located at the remotest end of the laterally arranged needles where the largest needle thread loop is formed, and wherein a looper picks up needle thread loops as the needles ascend from their lowest position, between said thread holes of the thread taking-up tool and the cam face of the thread handling body, so as to handle other needle thread with the remotest end needle thread remaining at the curved lower end of the cam face.