发明名称 |
Piercing die. |
摘要 |
<p>The subject piercing die (10) is particularly adapted for piercing a hole in a blank (26) having an open interior and an outer wall defining a closed figure. The piercing is done from the interior of the blank through the wall to the outside of the blank. The piercing die includes a base (14) with a slide (18) movably mounted on the base. A guide (20) is movably connected to the slide to control movement of the slide to a straight line movement. A female die (22) having a blank receptacle (66) for holding the blank is mounted on the base. The female die has a cutting aperture (70) extending through a portion of the female die and intersecting the blank receptacle. A male die (24) is mounted on the slide (18) and is positioned within the blank receptacle for mating with the cutting aperture to cut a hole in a blank positioned in the receptacle. The male die cuts a hole in the blank from the interior of the blank through the outer wall to the outside of the blank. A cam (54) is connectable to the slide for moving the male die toward the female die to engage the blank and to cut the hole in the blank.</p> |
申请公布号 |
EP0267115(A2) |
申请公布日期 |
1988.05.11 |
申请号 |
EP19870402476 |
申请日期 |
1987.11.03 |
申请人 |
ECOLOGICAL SYSTEMS, INC. |
发明人 |
GRUCHALSKI, HENRY;GRUCHALSKI, ALBERT |
分类号 |
B21D28/28;B21D28/30;B21D28/34;(IPC1-7):B21D28/30 |
主分类号 |
B21D28/28 |
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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