发明授权
- 专利标题： Apparatus for making holes in thick stacks of paper
- 专利标题（中）： 用于在厚堆纸上制作孔的装置
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申请号： US490194申请日： 1983-04-29
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公开(公告)号： US4509396A公开(公告)日： 1985-04-09
- 发明人: Walter Schall , Guido Negro , Martin Hipp , Hans Albrecht
- 申请人： Walter Schall , Guido Negro , Martin Hipp , Hans Albrecht
- 申请人地址： DEX
- 专利权人： Bielomatik Leuze GmbH & Co.
- 当前专利权人： Bielomatik Leuze GmbH & Co.
- 当前专利权人地址： DEX
- 优先权： DEX3220461 19820529
- 主分类号： B26D7/18
- IPC分类号： B26D7/18 ; B26F1/02 ; B26F1/14
摘要：
A tool for punching relatively thick paper stacks, comprises a cylindrical, hollow punch with a cutting edge on its front outer edge. Processing takes place in the manner of a punching operation against a bearing surface, which has a hole corresponding to tool with a counterpunch arranged centrally therein. A blade is arranged in the resulting annular gap in order to separate punching waste which has been pressed into said annular gap and in order to permit the removal thereof.
公开/授权文献
- US5625965A Stand easy shoe insert 公开/授权日：1997-05-06
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