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1. 发明公开

EP3132903A1 DRILL BIT 有权
标题翻译：钻头
公开(公告)号：EP3132903A1
公开(公告)日：2017-02-22
申请号：EP15780306.5
申请日：2015-03-30
申请人： Kabushiki Kaisha Miyanaga
发明人： MIYANAGA, Masaaki
IPC分类号： B28D1/14
CPC分类号： B28D1/146 , B23B51/02 , B23B51/06 , B23B2226/75 , B23B2251/241 , B23B2251/406 , B23B2251/50 , B25D17/02 , B25D17/20 , B25D2250/111 , B25D2250/211 , B28D7/02
摘要： A drill bit includes a pointed head and a bit shaft. A dust suction passage is formed in the bit shaft. A hole with an opening is formed in the pointed head or in a portion of the bit shaft, the portion being near a distal end of the bit shaft. The bit shaft includes a first portion, the first portion including a core and a rib. The core extends in an axial direction, and is thinner than the pointed head. The rib protrudes radially outward from a side surface of the core, and extends over an entire length of the first portion. The dust suction passage extends through the core in the axial direction.
摘要翻译：钻头包括尖头和钻头杆。吸尘通道形成在钻头杆中。具有开口的孔形成在尖头或钻头杆的一部分中，该部分靠近钻头杆的远端。钻头杆包括第一部分，第一部分包括芯和肋。芯部沿轴向延伸，并且比尖头部更薄。肋从芯的侧表面径向向外突出，并且在第一部分的整个长度上延伸。吸尘通道在轴向上延伸穿过芯部。

2. 发明公开

EP2080574A1 SHANK ATTACHMENT DEVICE 有权
标题翻译： SCHAFTBEFESTIGUNGSVORRICHTUNG
公开(公告)号：EP2080574A1
公开(公告)日：2009-07-22
申请号：EP07740864.9
申请日：2007-04-03
申请人： KABUSHIKI KAISHA MIYANAGA
发明人： MIYANAGA, Masaaki
IPC分类号： B23B31/02 , B23B51/04
CPC分类号： B23B51/0473 , B23B31/1071 , B23B51/0426
摘要： An object of the present invention is to provide a shank attachment device capable of transmitting a comparatively high rotational torque and reducing in size.
A shank attachment device is configured to attach a core drill (50) to a rotating portion of a drill device and includes an arbor (1) and a shank (2). The arbor (1) is detachably attachable to the rotating portion. The arbor (1) and the shank (2) are detachably attachable to each other. The shank (2) is detachably attachable to the core drill (50). A stopper member (17) of the arbor (1) engages with a stopper groove (21A) of the shank (2) to stop a movement of the shank (2) in an axial direction away from the arbor (1). A rotational torque of the arbor (1) can be transmitted to the shank (2) by engaging a first engaging portion (12G) of the arbor (1) with a first engaged portion (20G) of the shank (2). The shank (2) contacts the arbor (1) to stop the movement of the shank (2) in the axial direction toward the arbor (1).
摘要翻译：本发明的目的是提供一种能够传递相对高的旋转扭矩并减小尺寸的柄连接装置。柄附接装置构造成将钻芯（50）附接到钻孔装置的旋转部分，并且包括心轴（1）和柄（2）。心轴（1）可拆卸地附接到旋转部分。心轴（1）和柄（2）可拆卸地相互连接。柄（2）可拆卸地附接到芯钻（50）上。心轴（1）的止动构件（17）与柄（2）的止动槽（21A）接合，以阻止柄（2）沿轴向移动远离心轴（1）的运动。通过将心轴（1）的第一接合部分（12G）与柄（2）的第一接合部分（20G）接合，心轴（1）的旋转扭矩可以传递到柄部（2）。柄（2）接触心轴（1）以阻止柄（2）在轴向方向上朝向心轴（1）的运动。

3. 发明公开

EP1559492A1 DRILL BIT 无效
标题翻译： BOHRWERKZEUG
公开(公告)号：EP1559492A1
公开(公告)日：2005-08-03
申请号：EP03770071.3
申请日：2003-10-31
申请人： Kabushiki Kaisha Miyanaga
发明人： MIYANAGA, Masaaki
IPC分类号： B23B51/00 , B28D1/14
CPC分类号： B23B51/02 , B23B2222/28 , B23B2226/75 , B23B2251/14 , B23B2251/202 , B23B2251/46 , B23B2251/50
摘要： A drill bit constructed to improve a tip end of the cutting pointed portion to efficiently discharge chips from a center portion of a crush face of a drill hole to thereby improve cutting efficiency, is disclosed. A plurality of cutting blades 3a, 3b, and 3c are formed to be arranged in a circumferential direction of a cutting blade chip 3 formed by a cemented carbide block body. The cutting blades 3a, 3b, and 3c are each structured to have a cutting edge 4 formed by an edge between a face 6 and a flank 7 of the associated cutting blades. In this drill bit, a groove 8 is configured to be provided in a center portion of the tip end of the cutting blade chip in contact with tip ends of the cutting blade chip, and the tip ends of the cutting edges 4 have pointed portions.
摘要翻译：公开了一种钻头，其构造成改善切割尖部的尖端，以有效地从钻孔的破碎面的中心部分排出碎屑，从而提高切割效率。多个切割刀片3a，3b和3c形成为沿着由硬质合金块体形成的切割刀片3的圆周方向。切割刀片3a，3b和3c各自构造成具有由相关联的切割刀片的面6和侧面7之间的边缘形成的切削刃4。在该钻头中，槽8被构造成设置在与切割刀片的前端接触的切割刀片的前端的中心部分，并且切削刃4的前端具有尖端部。

4. 发明公开

EP1514657A1 DRILL BIT 审中-公开
标题翻译：钻头
公开(公告)号：EP1514657A1
公开(公告)日：2005-03-16
申请号：EP02736015.5
申请日：2002-06-06
申请人： KABUSHIKI KAISHA MIYANAGA
发明人： MIYANAGA, Masaaki
IPC分类号： B28D1/14 , B23B51/00
CPC分类号： B23B51/02 , B23B2226/75 , B23B2251/14 , B23B2251/207 , B23B2251/287 , B23B2251/50
摘要： A drill bit of the present invention is intended to stably perform drilling by lessening a great change in a drilling condition and to avoid reduction of a drilling efficiency even when large chip lumps are generated. In the drill bit, the main cutting blades have main cutting edges each structured such that an inner end thereof is located at the rotation center of the drill and an outer end thereof is located on an outer periphery of a rotation trace of the cutting blades, and the sub cutting blades have sub cutting edges each structured such that an inner end thereof is located to be spaced radially outward apart from the rotation center and an outer end thereof is located to be spaced radially inward apart from the outer periphery of the rotation trace toward the center of rotation.
摘要翻译：本发明的钻头旨在通过减少钻孔条件的巨大变化来稳定地执行钻孔，并且即使当产生大的碎屑块时也避免钻孔效率的降低。在所述钻头中，所述主切削刀片具有主切削刃，所述主切削刃各自构造成使得其内端位于所述钻头的旋转中心并且其外端位于所述切削刀片的旋转轨迹的外周上，并且所述副切削刀具具有子切削刃，所述副切削刃各自构造成使得其内端被定位成与所述旋转中心径向向外间隔开，并且其外端被定位成与所述旋转轨迹的外周径向地径向向内间隔开朝向旋转的中心。

5. 发明公开

EP1275457A1 DRILL BIT 有权
标题翻译：钻头
公开(公告)号：EP1275457A1
公开(公告)日：2003-01-15
申请号：EP00979974.3
申请日：2000-12-07
申请人： Kabushiki Kaisha Miyanaga
发明人： MIYANAGA, Masaaki
IPC分类号： B23B51/00
CPC分类号： B28D1/146 , B23B31/005 , B23B51/00 , B23B2226/75 , B23B2231/0224 , B23B2240/08 , B23B2240/16 , B23B2251/14 , B23B2251/18 , B23B2251/202 , B23B2265/32 , Y10T408/78 , Y10T408/907 , Y10T408/909
摘要： An object of the present invention is to provide a drill bit which is simple in design, high in rigidity, and superior in durability and whose drilling function is in no way inferior to that of conventional drilling bits. To this end, in a drill bit comprising a cutting blade tip 2 which is united tightly to a tip end of a bit body 1 and a plurality of cutting blade portions 2a, 2b and 2c which are formed around the cutting blade tip 2, a flat surface portion 3 is formed in a side surface of the drill bit from between adjacent cutting blade portions to a base portion of the bit body 1 so that the bit body 1 is formed into a straight configuration having an approximately polygonal cross section.
摘要翻译：本发明的一个目的是提供一种设计简单，刚度高，耐久性好，钻孔功能不逊于常规钻头的钻头。为此，在包括与钻头本体1的末端紧密结合的切割刀片末端2和形成在切割刀片末端2周围的多个切割刀片部分2a，2b和2c的钻头中，平坦表面部分3形成在钻头的从相邻切削刃部分之间的侧表面到钻头本体1的基部部分，使得钻头本体1形成为具有大致多边形横截面的直线构造。

6. 发明公开

EP1270162A1 DRILL BIT 有权
标题翻译：钻头
公开(公告)号：EP1270162A1
公开(公告)日：2003-01-02
申请号：EP00909633.0
申请日：2000-03-15
申请人： Kabushiki Kaisha Miyanaga
发明人： MIYANAGA, Masaaki
IPC分类号： B28D1/14 , B23B51/00 , E21B10/44
CPC分类号： B23B51/02 , B23B2226/75 , B23B2251/14 , B23B2251/202
摘要： An object of the present invention is to provide a drill bit capable of easily drilling a drill hole that has no rifling, and has high circularity, can be easily positioned, the drill bit comprising a cutting blade tip which is composed of a block body of cemented carbide, three cutting blade portions are formed circumferentially equidistantly around the cutting blade tip, a connection line between a cutting surface 5 and a flank surface 6, said cutting and flank surfaces being formed in each said cutting blade portion 4a, 4b, 4c, acts as a main cutting edge 8 whereas a connection line between a connection surface 7 and said flank surface 6 acts as an auxiliary cutting edge 9, said main cutting edges 8 and said auxiliary cutting edges 9 cross at a blade tip point 10 so that said blade tip point 10 is shaped like a peak with no chisel edge, each said auxiliary cutting edge 9 lies on a line extending from said main cutting edge 8 of a said cutting blade portion located opposite across said blade tip point 10, and each of said main cutting edge 8, said auxiliary cutting edge 9, and a connection line between said connection and cutting surfaces 7, 5 crossing at said blade tip point 10 extends in a straight line.
摘要翻译：本发明的一个目的是提供一种能够容易地钻出不具有膛线且具有高度圆形度的钻头，该钻头能够容易地定位，该钻头包括切割刀片尖端，该切割刀片尖端由在每个所述切割刀片部分4a，4b，4c中形成三个切割刀片部分，所述三个切割刀片部分围绕切割刀片尖端，切割表面5和侧表面6之间的连接线周向等距地形成，所述切割和侧面表面形成在所述切割刀片部分4a，用作主切削刃8，而连接表面7和所述侧表面6之间的连接线用作辅助切削刃9，所述主切削刃8和所述辅助切削刃9在刀尖端点10处交叉，使得所述叶片尖端点10成形为没有凿子边缘的尖峰，每个所述辅助切割刃9位于从所述切割刀片部分的所述主切割刃8延伸的线上，并且所述主切削刃8，所述辅助切削刃9以及在所述刀尖端点10处交叉的所述连接面和切削面7,5之间的连接线沿直线延伸。

7. 发明公开

EP1260297A1 CORE BODY LOCK DEVICE OF CORE DRILL AND CORE BODY USED FOR THE DEVICE 有权
标题翻译：该设备使用的核心钻芯骨体装置和芯体
公开(公告)号：EP1260297A1
公开(公告)日：2002-11-27
申请号：EP00907965.8
申请日：2000-03-09
申请人： Kabushiki Kaisha Miyanaga
发明人： MIYANAGA, Masaaki
IPC分类号： B23B51/04
CPC分类号： B23B51/0473 , B23B31/113 , B23B2260/022 , Y10T408/895 , Y10T408/95
摘要： It is an object to provide a locking device of a core drill which automatically locks a core body when the core body is attached to a base body, the coupling relation between the base body and the core body being fixed unless an unlocking operation is performed by an act of worker, wherein in the core drill including the base body and the core body which are connected to each other by the engagement of an engagement projection with an engagement concave portion, an engagement pawl of the locking device is disposed on the base body, and under the condition that the engagement projection engages the engagement concave portion, the engagement pawl being biased by a compression spring is caused to descend to a back portion of the engagement projection to fix the engagement projection within the engagement concave portion thereby locking the core body.
摘要翻译：本发明的目的在于，提供一种在将芯体安装于基体时自动锁定芯体的芯钻的锁定装置，在基体与芯体的结合关系固定的情况下，不进行解锁动作工作人员的动作，其中，在包括通过接合突起与接合凹部的接合而彼此连接的基体和芯体的芯钻中，锁定装置的接合爪设置在基体，并且在接合突起与接合凹部接合的情况下，被压缩弹簧偏置的接合爪下降到接合突起的后部，以将接合突起固定在接合凹部内，由此锁定芯部身体。

8. 发明公开

EP1238732A1 SHANK INSTALLATION STRUCTURE AND CUTTERS 有权
标题翻译： SCHNEIDWERKZEUG SCH SCHINTINSTALLATIONSSTRUKTUR
公开(公告)号：EP1238732A1
公开(公告)日：2002-09-11
申请号：EP00964748.8
申请日：2000-10-10
申请人： Kabushiki Kaisha Miyanaga
发明人： MIYANAGA, Masaaki
IPC分类号： B23B51/04 , B23B31/107 , B23Q3/12
CPC分类号： B23B51/0473 , B23B31/1071 , B23B51/0426 , Y10T279/17752 , Y10T279/3481 , Y10T408/895 , Y10T408/953
摘要： A shank attaching structure with as less axial free movement as possible and of a simplified construction, a cutter for use with the shank attaching structure, and a cutter for use with the shank attaching structure which is free from an incident that the cutter becomes incapable of coming off even if an impactive rotating torque is exerted thereon, are intended to be provided, wherein the shank attaching structure is constructed such that in a state restricted by a restriction mechanism for restricting a depth to which a shank (7) is inserted into an arbor (A), the position of an engaging portion (7B) relative to the lock member (5) is axially deviated toward the open side of a shank attaching bore to bring the lock member (5) and the engaging portion (7B) into abutment with each other on the base end side of the shank attaching bore. The cutter (B) is constructed such that an outer peripheral edge portion (7C) of a concave portion forming the engaging portion (7B) is dented from an outer peripheral surface of the shank (7).
摘要翻译：具有尽可能少的轴向自由运动和简化结构的柄连接结构，用于与柄连接结构一起使用的切割器，以及与刀柄附接结构一起使用的切割器，该切割器没有刀具不能进入的入口即使在其上施加有冲击性的旋转扭矩也会脱落，其中，所述柄连接结构被构造成在受限制机构限制的状态下限制将柄（7）插入到其中的深度心轴（A）中，相对于锁定构件（5）的接合部分（7B）的位置朝向柄安装孔的敞开侧轴向偏离，以使锁定构件（5）和接合部分（7B）进入在柄连接孔的基端侧相互邻接。刀具（B）构造成使得形成接合部（7B）的凹部的外周缘部（7C）从柄部（7）的外周面凹陷。

9. 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

10. 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.

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