| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problems, wherein the price of brass or copper rises in recent years and shortage of human power results in the decrease of production amount in brazing processing requiring skill, in harsh working environment and the decrease in the production amount is shifted to raise of product price and as a result, the rise of product price has a deep influence on management of fishing industry using the product in large amounts, though readily processable brass or copper having proper thermal conductivity has been used in production of conventional Matsuba swivel or swivel for fishing called "Matsuba twin swivel", in which two Matsuba swivels are combined and welding method known as brazing has been applied to jointing parts, in order to obtain proper strength. <P>SOLUTION: Loop-shaped connecting rings 1 are installed at both ends of a metallic wire material 6, the central vicinity of the two connecting rings 1 is formed as a top, and the connecting ring 1 is superimposed on the connecting ring 1, horizontally and vertically in the central vicinity of the bottom to form a triangular head 2. The top of article, formed so that one end of the metallic wire material 6 becomes a head 3 of a nail, and the diameter of the head 3 of the nail formed larger than the inside diameter of the connecting ring 1, is passed through from the inside 11 of the triangular head 2, and a loop-shaped connecting ring 4 is installed at the top. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
