发明名称 A tool for producing bends in curved surfaces.
摘要 <p>The tool according to the present invention is intended for producing bends or steps in curved surfaces and includes an upper tool-part (9) and a lower tool-part (9 min ) which are arranged to work towards one another, when they are active. Surfaces (17, 18) on the tool-parts have a shape which identifies with or conforms to the shape of the curved surface in which a bend or bends is or are to be formed. The surfaces (17, 18) have the form of form-tools (21, 21 min ) resiliently mounted (26, 26 min ) and guided in the upper and lower tool-parts (9, 9 min ), the form-tools also having shape-identity with the original curved surface. The bending tool according to the invention is suitably arranged in a press (not shown). </p>
申请公布号 EP0133424(A2) 申请公布日期 1985.02.20
申请号 EP19840850221 申请日期 1984.07.16
申请人 AB VOLVO 发明人 PERSSON, BENGT GOERAN
分类号 B21D5/01;B21D5/00;B21D11/18;B29C53/04 主分类号 B21D5/01
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