发明授权
- 专利标题： Punching mechanism
- 专利标题（中）： 冲孔机构
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申请号： US419873申请日： 1989-10-10
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公开(公告)号： US5024127A公开(公告)日： 1991-06-18
- 发明人: Wolfgang F. Mueller , George Popp , George B. Vandergheynst
- 申请人： Wolfgang F. Mueller , George Popp , George B. Vandergheynst
- 申请人地址： NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： NY Armonk
- 主分类号： B21D28/00
- IPC分类号： B21D28/00 ; B26D5/08 ; B26F1/02 ; B26F1/04
摘要：
A punching mechanism includes a permanent magnet and a pole-piece connected to one pole of the permanent magnet and spaced from the other pole by a gap. A movable coil is disposed at least partially within the gap. A punch actuator is connected to the movable coil, and conductors are provided for conducting an electrical current to the coil. Current is supplied to the coil to effect a punching action.
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