Double chainstitch sewing machine

专利名称：Double chainstitch sewing machine发明人：Masahiko Nishikawa申请号：US09923055申请日：20010806公开号：US06390000B1公开日：20020521

专利附图：

摘要：In a double chainstitch sewing machine, a movable thread guide is fixed to thelower end of a needle bar A fixed thread guide and a thread take-up cam are fixed to ajaw of a sewing machine arm The thread take-up cam has a cam section to be engagedwith needle threads from the fixed thread guide to the movable thread guide and takes

up the needle threads oscillating up and down by vertical motion of the movable threadguide Thread take-up members such as movable thread guide fixed thread guide andthread take-up cam are disposed centrally at the lower end of the needle bar near theneedle and in the jaw of the sewing machine arm As a result, there is no member forthread take-up moving at the upper side and front side of the sewing machine arm, anddangerous positions for the operator can be decreased. Further, the thread pathwaylength from the workpiece to the thread tension device is shortened, and the effects ofthread stretch properties can be decreased.

申请人：PEGASUS SEWING MACHINE MFG. CO., LTD.

代理机构：Flynn, Thiel, Boutell & Tanis, P.C.

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