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METHOD FOR PULLING IN NEEDLE THREAD LOOP IN SEWING MACHINE OR EMBROIDERY MACHINE AND SHUTTLE FOR EXECUTING THE METHOD
METHOD FOR PULLING IN NEEDLE THREAD LOOP IN SEWING MACHINE OR EMBROIDERY MACHINE AND SHUTTLE FOR EXECUTING THE METHOD
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机译:缝纫机或绣花机中的针线环拉动的方法及执行该方法的梭
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摘要
PROBLEM TO BE SOLVED: To guarantee excellent stitch formation even in the case of thread whose processing is extremely difficult in a method for improving the pull-in of a needle thread loop at the time of forming a lock stitch and a shuttle constituted corresponding to the method. ;SOLUTION: The upward movement of the needle thread loop is temporarily stopped at least inside the last quadri-sected section of the loop movement of the needle thread loop. The leg part of a slackened needle thread loop moved along the front end face 27 of a bobbin case 19 is made to go over the front end face 27 of the bobbin case 19 and deflected. When the upward movement of the needle thread loop is about to end, the needle thread loop is horizontally directed to bobbin thread guided in an almost vertical direction on a route from the bobbin case 19 to a piercing hole and supplied to the bobbin thread.;COPYRIGHT: (C)1998,JPO
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