发明名称 TUB SYSTEM
摘要 A method of manufacturing a tab (43) of the type attachable to an easy-open container wall to open of a tear panel of the container wall, including an initial step of placing a protruding stitch (45) in a sheet metal strip (47) from which the tab is to be formed. Thereafter, a tab blank (51) is cut in the strip of sheet metal, with this cut starting and ending immediately adjacent to opposite sides of the stitch, but the cutting die is separated slightly from the stitch. Thereafter, the outer periphery (61) of the tab blank is curled onto the inner surface of the tab blank. The stitch is then severed adjacent the tab.
申请公布号 JPS5497192(A) 申请公布日期 1979.08.01
申请号 JP19780164503 申请日期 1978.12.28
申请人 REYNOLDS METALS CO 发明人 DANIERU FURANKU KADOZUITSUKU
分类号 B21D51/38;B65D17/34;B65D17/347;B65D17/353 主分类号 B21D51/38
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