发明名称 Device for drawing sheet materials in particular sheet blanks
摘要 A device is provided for drawing sheet materials, in particular, sheet blanks. The device includes a cushion of elastic material disposed in an enclosure, a die for forming the sheet blank, the die having a peripheral portion constituting an upper blank holder. The device also includes a lower blank holder for supporting and maintaining at least a portion of the sheet blank which is placed directly on the cushion of elastic material and cooperates with the upper blank holder for clamping the sheet blank in at least localized zones. The lower blank holder bears against a slidable element disposed around lateral faces of the cushion.
申请公布号 US5255550(A) 申请公布日期 1993.10.26
申请号 US19910809161 申请日期 1991.12.18
申请人 ISOFORM 发明人 DITTLO, MICHEL
分类号 B21D22/10;B21D24/04;B21D24/06;(IPC1-7):B21D26/00 主分类号 B21D22/10
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