Patent ID: 6700059
Filing Date: 2004-03-02
Classification: B21D,H05K,Y10T

Abstract:
A metal plate to be used for manufacturing a three-dimensional structure through three-dimensional extension, comprising:a first portion which does not have cuts at all; a second portion connected to said first portion; and a third portion connected to a portion in said second portion on an opposite side of a boundary line of said first portion and said second portion and having said cuts arranged like a zigzag in a first direction parallel with said boundary line, said second portion comprising: a plurality of connecting portions extended in a second direction orthogonal to said first direction on the same plane and connecting a portion in said second portion on said boundary line side and said third portion; and a plurality of openings arranged in said first direction, each of which is interposed between connecting portions adjacent to each other out of said plurality of connecting portions.