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1. 发明公开

EP0811449A2 Multistage bit and stopper for said multistage bit 失效
标题翻译： Mehrstufenbohrer und Anschlagvorrichtungfürdengleichen
公开(公告)号：EP0811449A2
公开(公告)日：1997-12-10
申请号：EP97302347.6
申请日：1997-04-04
申请人： Kabushiki Kaisha Miyanaga
发明人： Miyanaga, Masaki
IPC分类号： B23B51/00 , B23B51/04
CPC分类号： B23B51/0426 , B23B51/009 , Y10T408/8925 , Y10T408/9065 , Y10T408/99
摘要： A multistage bit is provided with a base part having a profile of stepped conical body with its tip cut off, and with a tip drill having a blade B of the smaller diameter than the blade B which is formed on the stage 2 at the foremost end of the base part A, the latter being provided freely detachably at the tip of the base part A.
The stopper S for the above multistage bit comprises a ring shaped member having elasticity in the radial direction with its free diameter slightly smaller than the diameter of each stage of the multistage bit, a part of said ring shaped member being cut, and at least one cut end 18 thereof is bent to the center side of the ring so as to be stopped in the vertical groove 19 formed on the outer periphery of the multistage bit, and the height of the ring H is constituted to be equal to or slightly higher than the height of the stage 2.
摘要翻译：多级钻头设置有具有阶梯状锥体的轮廓的基部，其末端被切除，并且具有尖端钻头，其具有直径小于在最前端的台架2上的叶片B的直径较小的叶片B. 基部A的后部可自由地可拆卸地设置在基部A的前端。用于上述多级钻头的止动件S包括在径向上具有弹性的环形构件，其自由直径略小于所述多级钻头的每个阶段，所述环形构件的一部分被切割，并且其至少一个切割端18弯曲到所述环的中心侧，以便停在形成在所述多级钻头的外周上的垂直槽19中多级位和环H的高度构成为等于或略高于平台2的高度。

2. 发明公开

EP0811449A3 Multistage bit and stopper for said multistage bit 失效
标题翻译：多级位和停止装置dengleichen
公开(公告)号：EP0811449A3
公开(公告)日：1998-02-25
申请号：EP97302347.6
申请日：1997-04-04
申请人： Kabushiki Kaisha Miyanaga
发明人： Miyanaga, Masaki
IPC分类号： B23B51/00 , B23B51/04
CPC分类号： B23B51/0426 , B23B51/009 , Y10T408/8925 , Y10T408/9065 , Y10T408/99
摘要： A multistage bit is provided with a base part having a profile of stepped conical body with its tip cut off, and with a tip drill having a blade B of the smaller diameter than the blade B which is formed on the stage 2 at the foremost end of the base part A, the latter being provided freely detachably at the tip of the base part A. The stopper S for the above multistage bit comprises a ring shaped member having elasticity in the radial direction with its free diameter slightly smaller than the diameter of each stage of the multistage bit, a part of said ring shaped member being cut, and at least one cut end 18 thereof is bent to the center side of the ring so as to be stopped in the vertical groove 19 formed on the outer periphery of the multistage bit, and the height of the ring H is constituted to be equal to or slightly higher than the height of the stage 2.

3. 发明授权

EP0795368B1 Apparatus for drilling a hole having an undercut space 失效
标题翻译：用于钻孔的具有底切的装置
公开(公告)号：EP0795368B1
公开(公告)日：2001-07-11
申请号：EP97301601.7
申请日：1997-03-11
申请人： KABUSHIKI KAISHA MIYANAGA
发明人： Miyanaga, Masaki
IPC分类号： B23B51/00
CPC分类号： B23B51/0045

4. 发明公开

EP0795368A3 Apparatus for drilling a hole having an undercut space 失效
标题翻译：用于钻孔的具有底切的装置
公开(公告)号：EP0795368A3
公开(公告)日：1998-04-08
申请号：EP97301601.7
申请日：1997-03-11
申请人： KABUSHIKI KAISHA MIYANAGA
发明人： Miyanaga, Masaki
IPC分类号： B23B51/00
CPC分类号： B23B51/0045
摘要： It is the object of the present invention to drill a hole and, at the same time, transmitting an application force exactly to an undercutter for forming an undercut space in the cylindrical wall of the hole at a position near the hole bottom. An apparatus according to the present invention includes a rear circular member 1, a sleeve 10 supported in telescopic engagement with the rear member 1, an undercutter 5, and a front annular member 15 linking and movable with the undercutter 5. The sleeve 10 has an inner flange 13 forward from the rear member 1. An application force transmission mechanism 18 comprises a cam 20 supported by the rear member 1. The cam 20 has a pair of steps 21 and 22. The transmission mechanism 18 also comprises a first impact transmission rod 23 extending between the cam step 21 and sleeve flange 13, and a second impact transmission rod 24 extending between the step 22 and front member 15.

5. 发明授权

EP0811449B1 Multistage bit and stopper for said multistage bit 失效
标题翻译：多级位和停止装置dengleichen
公开(公告)号：EP0811449B1
公开(公告)日：2001-07-11
申请号：EP97302347.6
申请日：1997-04-04
申请人： Kabushiki Kaisha Miyanaga
发明人： Miyanaga, Masaki
IPC分类号： B23B51/00 , B23B51/04 , B23B49/00
CPC分类号： B23B51/0426 , B23B51/009 , Y10T408/8925 , Y10T408/9065 , Y10T408/99

6. 发明公开

EP0795368A2 Apparatus for drilling a hole having an undercut space 失效
标题翻译： Gerätzum Bohren eines Loches mit Hinterschnitt
公开(公告)号：EP0795368A2
公开(公告)日：1997-09-17
申请号：EP97301601.7
申请日：1997-03-11
申请人： KABUSHIKI KAISHA MIYANAGA
发明人： Miyanaga, Masaki
IPC分类号： B23B51/00
CPC分类号： B23B51/0045
摘要： It is the object of the present invention to drill a hole and, at the same time, transmitting an application force exactly to an undercutter for forming an undercut space in the cylindrical wall of the hole at a position near the hole bottom.
An apparatus according to the present invention includes a rear circular member 1, a sleeve 10 supported in telescopic engagement with the rear member 1, an undercutter 5, and a front annular member 15 linking and movable with the undercutter 5. The sleeve 10 has an inner flange 13 forward from the rear member 1. An application force transmission mechanism 18 comprises a cam 20 supported by the rear member 1. The cam 20 has a pair of steps 21 and 22. The transmission mechanism 18 also comprises a first impact transmission rod 23 extending between the cam step 21 and sleeve flange 13, and a second impact transmission rod 24 extending between the step 22 and front member 15.
摘要翻译：本发明的目的是钻孔，并且同时将施加力精确地传递到下切割器，以在孔底部附近的位置处形成孔的圆柱形壁中的底切空间。根据本发明的装置包括后圆形构件1，与后构件1可伸缩地支撑的套筒10，下切割器5和与下切割器5连接并可移动的前环形构件15.套筒10具有内部凸缘13从后部构件1向前。施力传递机构18包括由后部构件1支撑的凸轮20.凸轮20具有一对台阶21和22.传动机构18还包括第一冲击传动杆 23在凸轮台阶21和套筒凸缘13之间延伸，以及在台阶22和前部构件15之间延伸的第二冲击传动杆24。

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