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公开(公告)号：US09463507B2
公开(公告)日：2016-10-11
申请号：US14081415
申请日：2013-11-15
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki Miyanaga
CPC classification number: B22F7/02 , B22F7/06 , B22F7/064 , B22F2005/001 , B22F2999/00 , C22C29/08 , Y10T408/78 , B22F2207/03
Abstract: The object of the invention is to provide a hard tip where the nose side has wear resistance and the bonding side has toughness. The chemical composition of sintered hard alloy constituting the hard tip is such that a compounding ratio of WC to Co is substantially the same from the nose side to the bonding side, and a first bonding metal or a second bonding metal has a gradient chemical composition wherein the content of the first bonding metal or the second bonding metal is increased from the nose side to the bonding side, the first bonding metal does not form the eutectic texture with WC, and the second bonding metal has the eutectic temperature with WC over the eutectic temperature of WC—Co sintered hard alloy and the melting point over the liquid phase sintering temperature of WC—Co sintered hard alloy.
Abstract translation: 本发明的目的是提供一种硬尖端，其中鼻侧具有耐磨性，并且粘结侧具有韧性。 构成硬尖端的烧结硬质合金的化学组成使得WC与Co的配合比从鼻侧到接合侧基本相同，并且第一接合金属或第二接合金属具有梯度化学组成，其中 第一接合金属或第二接合金属的内容物从鼻侧增加到接合侧，第一接合金属不与WC形成共晶组织，并且第二接合金属具有超过共晶的WC的共晶温度 WC-Co烧结硬质合金的温度和WC-Co烧结硬质合金的液相烧结温度的熔点。
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公开(公告)号：US20210187630A1
公开(公告)日：2021-06-24
申请号：US17263127
申请日：2019-03-26
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki Miyanaga
Abstract: A core cutter includes: a cylindrical body; and a tipped bit that is disposed in a manner to protrude from a distal end of the body. The core cutter is configured to cut a workpiece with the bit when the body is rotated about a rotational axis that is an axis of the body. At a distal end of the body, a notch is formed adjacently to the bit at a position forward of the bit in a rotation direction of the body. A width of the notch in a circumferential direction of the body at the distal end of the body is less than or equal to 1.0 mm.
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公开(公告)号：US20190160707A1
公开(公告)日：2019-05-30
申请号：US16315253
申请日：2017-07-04
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki Miyanaga
Abstract: A hole drilling device for forming an expanded-diameter hole portion at an inner bottom part of a mounting hole includes: a shaft including a contact surface and a tapered surface, and a cutter including a stopper provided on a side surface of the cutter, the stopper coming into contact with a surface of a drilling object. The cutter is movable between a first position and a second position. When the cutter is in the first position, the contact surface is in contact with the inner bottom part of the mounting hole, and the stopper is away from the surface of the drilling object. When the cutter is in the second position, the cutter has been pushed in forward from the first position, the cutting bit has protruded laterally from the tapered surface, and the stopper is in contact with the surface of the drilling object.
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公开(公告)号：US20180187709A1
公开(公告)日：2018-07-05
申请号：US15394434
申请日：2016-12-29
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki Miyanaga
CPC classification number: F16B13/06 , F16B13/0833
Abstract: An anchor bolt inserted in a mounting hole includes: a shaft including an expanded diameter portion formed on its distal end, the expanded diameter portion having a tapered outer peripheral surface; a sleeve, into which the shaft is inserted from the proximal end side of the shaft, such that the sleeve covers an outer peripheral surface of the shaft, the sleeve including an expandable portion, which is configured to bend outwardly along the expanded diameter portion when pushed from an insertion complete state of the shaft; and a fitting piece connecting the shaft and the sleeve. A first recessed groove is formed in a peripheral surface of the sleeve. A ring, which contacts an inner peripheral wall of the mounting hole, is fitted in the first recessed groove.
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公开(公告)号：US09925691B2
公开(公告)日：2018-03-27
申请号：US15114286
申请日：2015-03-30
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki Miyanaga
CPC classification number: B28D1/146 , B23B51/02 , B23B51/06 , B23B2226/75 , B23B2251/241 , B23B2251/406 , B23B2251/50 , B25D17/02 , B25D17/20 , B25D2250/111 , B25D2250/211 , B28D7/02
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20180056400A1
公开(公告)日：2018-03-01
申请号：US15660515
申请日：2017-07-26
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki Miyanaga
CPC classification number: B23B27/10 , B23B27/20 , B23B45/02 , B23B51/042 , B23B51/0486 , B23B2226/31 , B23B2226/75 , B23B2250/12 , B23Q11/1061 , B23Q11/1092 , B28D1/146 , B28D7/02
Abstract: Provided is a method of drilling a hole in a drilling object by using a hole drilling device 1 including: a drill bit 3 including a cutting edge on a distal end thereof; and an electric drill 2, which rotates the drill bit 3, the method including a cutting step of rotating the drill bit 3 to drill a hole in the drilling object in a state where a water-soluble gel coolant is applied to the distal end of the drill bit 3.
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公开(公告)号：US20170001335A1
公开(公告)日：2017-01-05
申请号：US15114286
申请日：2015-03-30
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki Miyanaga
CPC classification number: B28D1/146 , B23B51/02 , B23B51/06 , B23B2226/75 , B23B2251/241 , B23B2251/406 , B23B2251/50 , B25D17/02 , B25D17/20 , B25D2250/111 , B25D2250/211 , B28D7/02
Abstract: 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.
Abstract translation: 钻头包括尖头和钻头轴。 在钻头轴上形成有吸尘通道。 具有开口的孔形成在尖头或钻头轴的一部分中，该部分靠近钻头轴的远端。 钻头轴包括第一部分，第一部分包括芯部和肋部。 芯沿轴向延伸，并且比尖头更薄。 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。 吸尘通道沿轴向延伸穿过芯体。
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8.发明申请公开(公告)号：US20160207222A1
公开(公告)日：2016-07-21
申请号：US14913652
申请日：2014-08-06
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki Miyanaga
CPC classification number: B28D1/146 , B23B51/0045 , B23B51/08 , B23B2226/75 , B23B2260/02 , Y10T408/50 , Y10T408/858 , Y10T408/85884 , Y10T408/8595 , Y10T408/9065
Abstract: A device for drilling a hole with an expanded diameter includes: a body, a shank; a sleeve; a compression spring; a drill bit body; an expanded diameter hole portion forming member attached to a side surface of the drill bit body and configured such that a cutting bit protrudes laterally from the drill bit body when the expanded diameter hole portion forming member moves forward on the side surface; a compression spring, which urges the expanded diameter hole portion forming member rearward relative to the drill bit body; and a cam. The expanded diameter hole portion forming member is configured to move forward on the side surface of the drill bit body owing to rotation of the cam when the body moves forward relative to the sleeve.
Abstract translation: 用于钻出具有扩展直径的孔的装置包括：主体，柄部; 袖子 压缩弹簧; 钻头体; 扩径直径的孔部形成构件，其安装在所述钻头体的侧面，并且构造成使得当所述扩径孔部形成构件在所述侧面上向前移动时，所述切削刃从所述钻头体侧向突出; 压缩弹簧，其相对于钻头体向后推动扩径孔部形成部件; 和一个凸轮。 膨胀直径孔部形成构件构造成当身体相对于套筒向前移动时由于凸轮的旋转而在钻头体的侧表面上向前移动。
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9.发明申请COOLANT SUPPLY DEVICE AND ELECTRIC DRILL UNIT PROVIDED WITH COOLANT SUPPLY DEVICE 有权冷却剂供应装置和电动钻机单元提供冷却剂供应装置公开(公告)号：US20140154020A1
公开(公告)日：2014-06-05
申请号：US14122650
申请日：2012-05-21
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki Miyanaga
CPC classification number: B28D7/02 , B23B45/003 , B23B51/06 , B23B2226/75 , B23B2231/24 , B28D1/041 , B28D1/14 , Y10T408/44 , Y10T408/455
Abstract: A coolant supply device attached to an electric drilling tool is configured to supply a coolant to a drilling portion at a distal end of a drill. The coolant supply device includes: a first flange member and a second flange member provided axially on a rotating shaft, the rotating shaft sharing a same axis with the drill, the first flange member being positioned at the drill side, the second flange member being positioned such that the second flange member is more distant from the drill than the first flange member; space formed between the flange members, into which a coolant is injected; a coolant supply passage formed between the first flange member and the drill and guiding the coolant in the space to the drill; and a coolant push-out mechanism configured to push the coolant out of the space toward the coolant supply passage.
Abstract translation: 附接到电钻井工具的冷却剂供应装置构造成将冷却剂供应到钻头的远端处的钻孔部分。 冷却剂供给装置包括：第一凸缘构件和轴向设置在旋转轴上的第二凸缘构件，旋转轴与钻头共用同一轴线，第一凸缘构件位于钻头侧，第二凸缘构件定位 使得所述第二凸缘构件比所述第一凸缘构件更远离所述钻头; 形成在凸缘构件之间的空间，注入冷却剂; 冷却剂供给通道，形成在第一凸缘构件和钻头之间，并将空间中的冷却剂引导到钻头; 以及冷却剂推出机构，其构造成将冷却剂从所述空间推向冷却剂供应通道。
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公开(公告)号：US20230118075A1
公开(公告)日：2023-04-20
申请号：US17905477
申请日：2021-02-22
Applicant: KABUSHIKI KAISHA MIYANAGA
Inventor： Masaaki MIYANAGA
Abstract: A boring device according to one embodiment of the present invention includes: a cutting edge; a drive unit that rotationally drives the cutting edge; a feed flow path through which a cooling liquid is fed to the cutting edge; and a tube pump that forces the cooling liquid in the feed flow path to flow to the cutting edge. The tube pump includes a feed tube constituting a part of the feed flow path and a first pressing mechanism that presses the feed tube, and the first pressing mechanism is driven by the drive unit.
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