发明名称 GAS PACKAGE MANUFACTURING METHOD USED FOR CAR COOLER OR THE LIKE
摘要 PURPOSE:To manufacture the titled package quickly and easily without shaping, by pressing a thick circular metallic palte into a cap shape, standing the brisk at the surrounding upward with a slope, cutting off the circumference and depressing the stood brisks. CONSTITUTION:After forming a cap shaped main body 1 from a thick circular raw material 1', a brisk 2 is folded to the circumference by 60 deg.[Fig. (d)], and the coarse part of the circumference of the brisk 2 is cut off[Fig. (e)]. Next, round shape[Fig. (f)] is made, and the part is folded toward the arrow 3 with a metal mold A and a pressing cylinder B to form the work to be processes with small radius[Fig.(g)]. Since a recess A'' is formed to the metallic mold A, the folding processing of the brisk 2 can be made surely. Thus, the inner circumference of the main body 1 and the lower surface of the brisk 2 are not required for shaping to form the radius as in a conventional method. The processing can be made only with pressing, allowing to make easy manufacture and low cost.
申请公布号 JPS57171532(A) 申请公布日期 1982.10.22
申请号 JP19810054437 申请日期 1981.04.13
申请人 YUHARA TERU 发明人 YUHARA TERU
分类号 B21D51/18;(IPC1-7):21D51/18 主分类号 B21D51/18
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