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1. 发明申请

WO2007066815A1 CIRCULAR CUTTING BLADE 审中-公开
标题翻译：圆形切割刀片
公开(公告)号：WO2007066815A1
公开(公告)日：2007-06-14
申请号：PCT/JP2006/324886
申请日：2006-12-07
申请人： HITACHI KOKI CO., LTD. , UMINO, Mayumi , OHTSU, Shinki , INAGAWA, Hiroto , SATO, Satsuo
发明人： UMINO, Mayumi , OHTSU, Shinki , INAGAWA, Hiroto , SATO, Satsuo
IPC分类号： B23D61/02
CPC分类号： B23D61/025
摘要： A circular cutting blade (1) has an outer peripheral portion (2A) provided with a cutting edge (4) and formed with a plurality of notches (5). Each of the plurality of notches extends in a radial direction and including a slit portion (6) and a hole portion (7). The slit portion has a radially outer end opening to an outer peripheral surface and a radially inner end, and the hole portion communicating with the radially inner end. The hole portion has a bottom part positioned radially inwardly of the radially inner end, a first side part, and a second side part opposing to the first side part. Each of the first and second side parts connecting to the radially inner end and continuously connecting to the bottom part. The bottom part having a smooth inner surface and a curvature smaller than curvatures of the first and second side parts.
摘要翻译：圆形切割刀片（1）具有设置有切削刃（4）并形成有多个切口（5）的外周部（2A）。多个切口中的每一个在径向方向上延伸并且包括狭缝部分（6）和孔部分（7）。狭缝部具有向外周面和径向内端开口的径向外端，并且与径向内端连通的孔部。孔部具有位于径向内端的径向内侧的底部，第一侧部和与第一侧部相对的第二侧部。每个第一和第二侧部连接到径向内端并连续地连接到底部。底部具有平滑的内表面和小于第一和第二侧部的曲率的曲率。

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