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1. 发明授权

US5139099A Excavation tool 失效
公开(公告)号：US5139099A
公开(公告)日：1992-08-18
申请号：US736725
申请日：1991-07-26
申请人： Takeshi Hayashi , Shigeru Sato , Katsuaki Tsujimoto , Daishiro Miyazaki , Yoneo Hiwasa , Toshiki Ishimatsu , Kimiyo Wada
发明人： Takeshi Hayashi , Shigeru Sato , Katsuaki Tsujimoto , Daishiro Miyazaki , Yoneo Hiwasa , Toshiki Ishimatsu , Kimiyo Wada
IPC分类号： E21B10/32 , E21B10/38 , E21B10/62
CPC分类号： E21B10/38 , E21B10/327 , E21B10/62
摘要： An excavation tool, in which a device is provided which receives the striking force of a hammer and the rotational force of a hammer cylinder, in a bottom surface of which at least three axle holes are provided displaced from a center of the device and at equivalent angular intervals in the circumferential direction, block axles are inserted in the axle holes in a freely rotatable manner, blocks which are roughly fan-shaped and have bits embedded in the lead end surfaces thereof are provided at lead end parts of the block axles, so that left- and right-side faces of said blocks are in mutual opposition and arc parts of all blocks together form roughly a circle shape; and when said device is rotated in the direction of excavation, said blocks rotate as a result of the resistance to excavation of the bottom part of the excavation hole, one intersection part of the side faces and the arc part of each block protrudes beyond the outer circumferential surface of the device by a predetermined excavation amount, and the mutual positions of the block axles with respect to the blocks are so determined that both side faces of each block come into contact with the side faces of neighboring blocks at this time.

2. 发明授权

US08550191B2 Digging tool, digging bit, and device 有权
标题翻译：挖掘工具，挖掘位和设备
公开(公告)号：US08550191B2
公开(公告)日：2013-10-08
申请号：US12733586
申请日：2008-04-22
申请人： Yoneo Hiwasa , Masaya Hisada , Kazuyoshi Nakamura
发明人： Yoneo Hiwasa , Masaya Hisada , Kazuyoshi Nakamura
IPC分类号： E21B10/60
CPC分类号： E21B17/04 , E21B10/38 , E21B21/12
摘要： Provided is an excavation tool for efficiently taking waste rocks produced during excavation into the inner peripheral side of a casing pipe. An excavation tool (10) includes a casing shoe (11), a casing pipe (15), a rod (60), a device (40), and an excavation bit (20). The excavation bit (20) has a head portion (22) and a skirt portion (23). The head portion (22) is provided with: a face flute (27), which is open into the tip face of the head portion and extends radially outward; a connection flute (28), which is integrally connected to the outer peripheral end of the face flute (27) and extends toward the rear end side, and an intake hole (29), which is integrally connected with the discharge flute (46) of the device (40) and is open to the inner peripheral side of the skirt portion (23) from the connection flute (28).
摘要翻译：提供了一种用于将挖掘过程中产生的废石有效地吸入套管的内周侧的挖掘工具。挖掘工具（10）包括套管（11），套管（15），杆（60），装置（40）和挖掘钻头（20）。挖掘钻头（20）具有头部（22）和裙部（23）。头部（22）设置有：朝向头部的前端面开口并径向向外延伸的面槽（27）与所述面槽（27）的外周端一体地连接并向后端侧延伸的连接槽（28）和与排出槽（46）一体连接的吸入孔（29）并且从连接槽（28）向裙部（23）的内周侧开口。

3. 发明授权

US08430977B2 Hollow drilling steel rod and method of manufacturing the same 有权
标题翻译：中空钻钢杆及其制造方法
公开(公告)号：US08430977B2
公开(公告)日：2013-04-30
申请号：US13399063
申请日：2012-02-17
申请人： Masaya Hisada , Yoneo Hiwasa , Satoshi Nagase , Noritaka Takahata
发明人： Masaya Hisada , Yoneo Hiwasa , Satoshi Nagase , Noritaka Takahata
IPC分类号： C22C38/00 , C22C38/22 , C22C38/44 , C22C7/00 , B32B15/01
CPC分类号： C22C38/42 , C21D1/18 , C21D1/42 , C21D9/08 , C21D9/50 , C21D2221/00 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/50 , C22C38/54 , E21B17/00 , E21B17/0426 , Y02P10/253
摘要： The present invention relates to a hollow drilling steel rod including a stem portion and a thread portion positioned at an end portion in an axial direction with respect to the stem portion, the hollow drilling steel rod being constituted of a steel having a specific composition described in the present specification, in which the thread portion includes a thread having been subjected to a high frequency quenching, and the thread portion and the stem portion separate from each other have been joined by a friction welding.
摘要翻译：本发明涉及一种中空钻钢杆，其包括杆部和相对于杆部位于轴向端部的螺纹部分，该中空钻杆钢杆由具有特定组成的钢构成，本说明书中，螺纹部分包括经过高频淬火的螺纹，并且螺纹部分和杆部分彼此分离已经通过摩擦焊接接合。

4. 发明申请

US20120211127A1 HOLLOW DRILLING STEEL ROD AND METHOD OF MANUFACTURING THE SAME 有权
标题翻译：中空钻杆钢及其制造方法
公开(公告)号：US20120211127A1
公开(公告)日：2012-08-23
申请号：US13399063
申请日：2012-02-17
申请人： Masaya HISADA , Yoneo Hiwasa , Satoshi Nagase , Noritaka Takahata
发明人： Masaya HISADA , Yoneo Hiwasa , Satoshi Nagase , Noritaka Takahata
IPC分类号： C21D6/00 , B23K20/12 , B32B15/01
CPC分类号： C22C38/42 , C21D1/18 , C21D1/42 , C21D9/08 , C21D9/50 , C21D2221/00 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/50 , C22C38/54 , E21B17/00 , E21B17/0426 , Y02P10/253
摘要： The present invention relates to a hollow drilling steel rod including a stem portion and a thread portion positioned at an end portion in an axial direction with respect to the stem portion, the hollow drilling steel rod being constituted of a steel having a specific composition described in the present specification, in which the thread portion includes a thread having been subjected to a high frequency quenching, and the thread portion and the stem portion separate from each other have been joined by a friction welding.
摘要翻译：本发明涉及一种中空钻钢杆，其包括杆部和相对于杆部位于轴向端部的螺纹部分，该中空钻杆钢杆由具有特定组成的钢构成，本说明书中，螺纹部分包括经过高频淬火的螺纹，并且螺纹部分和杆部分彼此分离已经通过摩擦焊接接合。

5. 发明申请

US20100200302A1 DIGGING TOOL, DIGGING BIT, AND DEVICE 有权
标题翻译： DIGGING TOOL，DIGGING BIT和DEVICE
公开(公告)号：US20100200302A1
公开(公告)日：2010-08-12
申请号：US12733586
申请日：2008-04-22
申请人： Yoneo Hiwasa , Masaya Hisada , Kazuyoshi Nakamura
发明人： Yoneo Hiwasa , Masaya Hisada , Kazuyoshi Nakamura
IPC分类号： E21B10/60 , E21B21/00 , E21B10/38 , E21B17/04 , E21B7/20
CPC分类号： E21B17/04 , E21B10/38 , E21B21/12
摘要： Provided is an excavation tool for efficiently taking waste rocks produced during excavation into the inner peripheral side of a casing pipe and discharging the waste rocks to the outside. An excavation tool (10) includes a casing shoe (11), a casing pipe (15), a rod (60), a device (40), and an excavation bit (20). A discharge flute (46) for discharging the waste rocks is formed in the outer peripheral surface of the device (40). The excavation bit (20) has a head portion (22) and a skirt portion (23). The device (40) can be inserted into the inner periphery of the skirt portion (23). The head portion (22) is provided with: a face flute (27), which is open into the tip face of the head portion and extends radially outward; a connection flute (28), which is integrally connected to the outer peripheral end of the face flute (27) and extends toward the rear end side, and an intake hole (29), which is integrally connected with the discharge flute (46) of the device (40) and is open to the inner peripheral side of the skirt portion (23) from the connection flute (28). A shield wall (35), which extends radially outward beyond the external diameter of the casing shoe (11), is formed at the rear end of the connection flute (28).
摘要翻译：提供一种挖掘工具，用于将挖掘过程中产生的废石有效地吸入套管的内周侧并将废石排放到外部。挖掘工具（10）包括套管（11），套管（15），杆（60），装置（40）和挖掘钻头（20）。在装置（40）的外周面形成有用于排出废石的排出槽（46）。挖掘钻头（20）具有头部（22）和裙部（23）。装置（40）可以插入裙部（23）的内周。头部（22）设置有：朝向头部的前端面开口并径向向外延伸的面槽（27）与所述面槽（27）的外周端一体地连接并向后端侧延伸的连接槽（28）和与排出槽（46）一体连接的吸入孔（29）并且从连接槽（28）向裙部（23）的内周侧开口。在连接槽（28）的后端处形成有径向向外延伸超出套管（11）的外径的屏蔽壁（35）。

6. 发明授权

US5113954A Excavation tool 失效
标题翻译：挖掘工具
公开(公告)号：US5113954A
公开(公告)日：1992-05-19
申请号：US660546
申请日：1991-02-25
申请人： Takeshi Hayashi , Shigeru Sato , Katsuaki Tsujimoto , Daishiro Miyazaki , Yoneo Hiwasa , Toshiki Ishimatsu
发明人： Takeshi Hayashi , Shigeru Sato , Katsuaki Tsujimoto , Daishiro Miyazaki , Yoneo Hiwasa , Toshiki Ishimatsu
IPC分类号： E21B10/32 , E21B10/56 , E21B10/66
CPC分类号： E21B10/66 , E21B10/327 , E21B10/56
摘要： An excavation tool, having a pair of insertion holes placed in the bottom surface of a device, which receives the impact force of a hammer and the rotational force of a hammer cylinder, at positions separated in a radial direction from the center of the device and symmetrical around this center as a center of rotation, also having block axles, one end of each of which is freely rotatably inserted into one of the insertion holes, and having blocks, which have a roughly semicircular shape with a diameter roughly equal to that of the device, into the lead end surfaces of which are set bits, and which have straight edge surfaces which are flat surfaces vertical with respect to the lead end surfaces, provided at the other end of the block axles and with the straight edge surfaces in mutual opposition; in an extended diameter state of the blocks, the blocks are moved in opposite directions along a radius of the device by rotating the blocks around the block axles, and the distance between the centers of the insertion holes provided in the bottom surface of the device and the center of this device is set at from 0.2 times the diameter of the bottom surface of the device to 0.3 times thereof.

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