发明名称 |
PURESUNUKIKAKODETASHURUINOPATAANOKAKOSURUHOHOOYOBISONOSOCHI |
摘要 |
<p>A method and apparatus for press-cutting selected patterns in a workpiece. The apparatus includes a plurality of dies and at least one punch element associated with each die. A plurality of backing plates are provided to drive the punch elements against the workpiece when the backing plates are positioned in the operative position. A press-cutting pattern selector selectively positions the backing plates in the operative position or an inoperative position depending upon the pattern to be press-cut.</p> |
申请公布号 |
JPH0234255(B2) |
申请公布日期 |
1990.08.02 |
申请号 |
JP19850131310 |
申请日期 |
1985.06.17 |
申请人 |
TOKAI RIKA CO LTD |
发明人 |
NISHIKAWA TAKEHIKO;ITO YASUO;HISAMATSU YOSHUKI;TANI NAOKI |
分类号 |
B21D28/00;B21D28/24;B21D53/42;B26F1/04 |
主分类号 |
B21D28/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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