发明公开
- 专利标题: Low noise punch tool
- 专利标题(中): GeräuscharmerStanzwerkzeug。
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申请号: EP93401855.7申请日: 1993-07-19
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公开(公告)号: EP0635321A1公开(公告)日: 1995-01-25
- 发明人: Omata, Hitoshi , Fujita, Oriya
- 申请人: AMADA COMPANY LIMITED , AMADA METRECS COMPANY, LIMITED
- 申请人地址: 200 Ishida Isehara-shi Kanagawa 259-11 JP
- 专利权人: AMADA COMPANY LIMITED,AMADA METRECS COMPANY, LIMITED
- 当前专利权人: AMADA COMPANY LIMITED,AMADA METRECS COMPANY, LIMITED
- 当前专利权人地址: 200 Ishida Isehara-shi Kanagawa 259-11 JP
- 代理机构: Hasenrader, Hubert
- 主分类号: B21D28/34
- IPC分类号: B21D28/34
摘要:
The low noise punch tool (17) of this application includes an upper surface pad (51) formed of a low noise material and disposed on an upper surface of a punch head (37) to be struck by a striker (25) of a punch press. Further, an elastic member (55) formed of a low noise material is interposed between the punch head (37) and a punch guide (43), and a ring (53) formed of a low noise material is interposed between the punch body (39,41) and the punch guide (43). The low noise punch tool (17) includes a lower surface pad (63) formed of a low noise material and attached to a lower surface of a stripper plate (45) provided at a lower end of the punch guide (43). The low noise material may be urethane. Yet further, the cutting edge (41a) provided at the lower end of the punch body (41) has preferably a shearing angle. This punch tool is advantageous in that the noises of the punch tool during punching is significantly reduced, and the structure thereof is simple.
公开/授权文献
- EP0635321B1 Low noise punch tool 公开/授权日:1997-04-09
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