Threading apparatus for a lower looper of an overl

专利名称：Threading apparatus for a lower looper of

an overlock sewing machine

发明人：Shui-Nu Wang申请号：US07/676338申请日：19910328公开号：US05076181A公开日：19911231

摘要：A threading device for threading a lower looper of an overlock sewing machine,an orifice and a slot are formed in an arm of the lower looper, a hook if formed on a rearend of the arm and obliqued from the arm at a sharp angle, a holder is formed on oneend of a lever, a thread threaded through the orifice of the arm can be carried by theholder toward the rear end of the arm, the thread will slip over the hook and locatedbehind the hook when the holder moves beyond the hook, and the thread can be hookedby the hook and received in the slot of the arm when the lever is released.

申请人：WANG; SHUI-NU

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