| 摘要 |
PCT No. PCT/JP94/01679 Sec. 371 Date Oct. 11, 1995 Sec. 102(e) Date Oct. 11, 1995 PCT Filed Oct. 6, 1994 PCT Pub. No. WO95/17983 PCT Pub. Date Jul. 6, 1993Two metal plates are joined together by curling, where projections are formed in advance at an edge of one of the two metal plates and those projections are forcibly advanced into an edge or the other of the two metal plates so as to interlock the metal plates without any mutual displacement therebetween and not requiring any positioning of projections or cut and raised portions with respect to holes.
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