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1. 发明专利

JP2000045688A UNDERGROUND PIPE JACKING DEVICE AND UNDERGROUND PIPE JACKING METHOD 失效
公开(公告)号：JP2000045688A
公开(公告)日：2000-02-15
申请号：JP20950898
申请日：1998-07-24
申请人： NITTO KOJI KK
发明人： ISHIKAWA SHUICHI
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To provide a compact underground propulsion device capable of being installed in a narrow shaft. SOLUTION: An underground pipe jacking device 3 in a starting shaft 1 has a mainbody 5 moved along a guide rail 4. The mainbody 5 has a pass-through portion 6 in which an embedded pipe 2 passes. The pass-through portion 6 is mounted with a demountable thrusting member 7. (a) The thrusting member 7 is provided on the mainbody 5 to thrusting the rear end of the embedded pipe 2 to be jacked into a ground. (b) The thrusting member 7 is removed to connect the end of the embedded pipe 2a through the pass-through portion 6 of the mainbody 5 to the rear end of the embedded pipe 2. (c) The mainbody 5 is moved backward to be removed from the embedded pipe 2a. The thrusting member 7 is mounted again and the rear end of the embedded pipe 2a is thrust to be jacked into the ground. The following pipe is thus connected to preceding pipe through the pass-through portion 6 of the mainbody 5. The stroke of a machine corresponds to the effective length of the pipe, thus eliminating the need for considering the length of a joint. For the length of a shaft, the effective length of the pipe and the width of the machine can be only considered. That results in more space efficiency, a small size, a small starting shaft required and profitable work.

2. 发明专利

JPH0941875A UNDERGROUND PROPELLING DEVICE AND UNDERGROUND PROPELLING METHOD 失效
公开(公告)号：JPH0941875A
公开(公告)日：1997-02-10
申请号：JP19875395
申请日：1995-08-03
申请人： NITTO KOJI KK
发明人： ISHIKAWA SHUICHI
IPC分类号： E21D9/06 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To conduct the accurate and efficient propelling work with small propelling force without inflicting scars on the inner face of a buried pipe. SOLUTION: A leading pipe 2 is advanced to an arrival shaft from a starting shaft by a propelling machine in the starting shaft. The tip of the leading pipe 2 is fixed to the arrival shaft, and the rear end is separated from the propelling machine. An excavating body 4 larger in diameter than a buried pipe 3 and an inner pipe 20 connected to the excavating body 4 are rotated and advanced while being outwardly inserted to the leading pipe 2. The buried pipe 3 is outwardly inserted to the inner pipe 20 and advanced. The sediment excavated by the excavating body 4 is conveyed into the starting shaft located in the opposite direction to the advancing direction by a spiral 21 in the inner pipe 20. The spiral 21 is kept in no contact with the inner peripheral face of the buried pipe 3, and no scar is inflicted on the inner face of the buried pipe 3. Since the leading pipe 2 is not advanced, small propelling force is sufficient. Even when the buried pipe 3 is advanced and the portion of the leading pipe 2 located in the front of the buried pipe 3 becomes short, the supporting force of the fixed leading pipe 2 is not reduced, and the arrival accuracy of the buried pipe 3 is high. The work is efficiently conducted only in the starting shaft when the buried pipe 3 is advanced.

3. 发明专利

JPH06313397A SMALL-DIAMETER PIPE PROPULSION CONSTRUCTION METHOD AND EQUIPMENT THEREFOR 失效
公开(公告)号：JPH06313397A
公开(公告)日：1994-11-08
申请号：JP12474793
申请日：1993-04-30
申请人： KANTO DENKI KOJI , NITTO KOJI KK , NASU DENZAI SANGYO KK
发明人： OZAKI KOJI , UEKI SHIGEO , ISHIKAWA SHUICHI
IPC分类号： E21D9/06 , E21D9/093
摘要： PURPOSE:To adapt wide range soil and to positively allows direction correction by changing propulsion technique in the course of propulsion. CONSTITUTION:A cutter face body 10 is rotatably mounted on the tip of a leading pipe 4 connected to the tip of a buried pipe 5. A shutter body 13 provided at the tip of an auger screw 11 penetrated in the buried pipe 5 and the leading pipe 4 from a shaft is locked with the cutter face body 10. The cutter face body 10 is rotated with the rotation of the auger screw 11 to excavate natural ground by means of suitable bits on its surface. Excavated sediment is taken in the leading pipe 4 from a sediment intaking port 19 provided in the cutter face body 10 to propel the leading pipe 4 and the buried pipe 5 while exhausting the excavated sediment to the shaft side by means of the auger screw 11. If necessary, the auger screw 11 is reversibly rotated to close the sediment intaking port 19 of the cutter face body 10 by means of the shutter body 13 and the leading pipe 54 and the buried pipe 5 are pressed in earth by means of a pressing device under this state.

4. 发明专利

JPH04336135A BUILDING OF PIPE ROUTE 失效
公开(公告)号：JPH04336135A
公开(公告)日：1992-11-24
申请号：JP13705191
申请日：1991-05-14
申请人： NITTO KOJI KK
发明人： ISHIKAWA SHUICHI
IPC分类号： E03F3/06 , E21D9/06 , F16L1/024
摘要： PURPOSE:To built a pipe route having sufficient air density without limitation of distance. CONSTITUTION:Tentative pipes 3 are extended in the ground, and a pipe material 5 is provided in the pipe. The pipe material 5 is a flexible tube including thermosetting resin. A pig is inserted in one end part 5a of the pipe material 5, and a fluid 8 is supplied from beyond, and the pig 7 is pushed to the tentative pipe 3. The tentative pipes 3 are extracted one by one from the reverse side of the pig 7. The pipe material 5 is molded into a fixed shape. When the temperature of the fluid 8 inside is increased, the pipe material 5 is hardened, and will be a pipe route of the fixed shape.

5. 发明专利

JP2005030006A Road surface cutting device and road surface cutting method 审中-公开
标题翻译：道路表面切割装置和道路表面切割方法
公开(公告)号：JP2005030006A
公开(公告)日：2005-02-03
申请号：JP2003194179
申请日：2003-07-09
申请人： Chichibu Concrete Kogyo Kk , Nitto Koji Kk , Shibuya Kensetsu Kk , 日東工事株式会社 , 澁谷建設株式会社 , 秩父コンクリート工業株式会社
发明人： ISHIKAWA SHUICHI , ONDA MINORU , SHIBUYA HIROSHI
IPC分类号： E02D29/12 , E01C23/09
摘要： PROBLEM TO BE SOLVED: To simplify and miniaturize a device constitution; and to perform smooth and efficient work execution even to an uneven road surface.
SOLUTION: This road surface cutting device has a center hole unit 201 fixed by pressing the inner periphery of a manhole frame 2 in the radial direction, and having a center hole S, a shaft part 202A movably inserted in the shaft direction into the center hole S, a driving part 202B integrally arranged on this upper part, and having a collar part 202Ba1 and a motor 202Bb, and a rotary cutting unit 202 rotatably arranged so that dead weight of the shaft part 202A and the driving part 202B is applied under the collar part 201Ba1, and having a substantially cylindrical cutter part 202C for cutting the outer peripheral side road surface R of the manhole frame 2 in a substantially circular shape.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了简化和小型化装置结构; 即使在路面不平坦的情况下也能顺利，高效地进行工作。解决方案：该路面切割装置具有通过沿径向按压人孔框架2的内周而固定的中心孔单元201，并且具有中心孔S，轴部202A，其沿轴向可移动地插入到中心孔S，一体地配置在该上部的驱动部202B，具有轴环部202Ba1和马达202Bb，以及可旋转地配置的旋转切割单元202，使得轴部202A和驱动部202B的自重为施加在凸缘部201Ba1下方，并且具有大致圆筒形的切割器部202C，用于切割大致圆形的人孔框架2的外周侧路面R. 版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JPH10196277A UNDERGROUND PROPULSION DEVICE AND UNDERGROUND PROPULSION METHOD 失效
公开(公告)号：JPH10196277A
公开(公告)日：1998-07-28
申请号：JP473697
申请日：1997-01-14
申请人： NITTO KOJI KK
发明人： ISHIKAWA SHUICHI
IPC分类号： E21D9/06 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To shorten a construction period by making a start shaft and an arrival shaft small-scaled, reducing the number of assigned workers, improving safety and increasing daily progress in a method of towing a pipe to bury it in the ground. SOLUTION: A guide pipe 20 is driven forward from a start shaft 2 to an arrival shaft 3 by a propulsion machine 5. In the arrival shaft 3, a head part 25 and a buried pipe 4 are insert-fitted to the periphery of the guide pipe 20, and a locking member 26 is fitted to the end part of the guide pipe 20. A pipe pressing plate 35 is fitted to the rear end of the buried pipe 4. The locking member 26 is protruded from a through hole 37 of the pipe pressing plate 35. The guide pipe 20 is towed by the propulsion machine 5 to press the head part 25 and the buried pipe 4 into the ground. The guide pipe 20 is driven forward by the propulsion machine 5 to protrude the locking member 26 further outside of the pipe pressing plate 35 to lock again. Reciprocating motion of the guide pipe 20 is repeated to tow the buried pipe toward the start shaft 2.

7. 发明专利

JPH09112181A PROTECTION DEVICE 失效
公开(公告)号：JPH09112181A
公开(公告)日：1997-04-28
申请号：JP26865395
申请日：1995-10-17
申请人： OBAYASHI DORO KK , SHIBUYA KENSETSU KK , NITTO KOJI KK , MIYAMA SANGYO KK , KASEI CO C I , OKASAN KOGYO KK
发明人： ASHINO KATSUKUNI , SHIBUYA HIROSHI , ISHIKAWA SHUICHI , MATSUMOTO KAZUHIRO , MATSUMOTO KAZUO , TAKAHASHI HIROSHI
IPC分类号： E21D7/00 , A62B99/00 , E04G21/32 , E06B9/06 , A62B37/00
摘要： PROBLEM TO BE SOLVED: To protect operators from falling materials in a narrow vertical shaft. SOLUTION: The first trap 4, a landing 5, and the second trap 7 to get down from the ground level into a vertical shaft 1, are provided in the vertical shaft having a nearly cylindrical shape. A protective blind 8 is transferably fitted along the outer edge of the landing 5 at the lower side of the landing 5. A plurality of plates are connected to each other with hinges to form the protective blind 8 which is opened or closed along guide rails. And excepting use the blind is folded and contained. A protection space S to acommodate operators is partitioned among the landing 5, the wall body 3, and the floor body 6 by the protective blind 8.

8. 发明专利

JPH07269285A UNDERGROUND JACKING DEVICE AND UNDERGROUND JACKING METHOD 失效
公开(公告)号：JPH07269285A
公开(公告)日：1995-10-17
申请号：JP6609994
申请日：1994-04-04
申请人： OBAYASHI DORO KK , TOKIWA BORING KK , NITTO KOJI KK
发明人： ASHINO KATSUKUNI , SEYA FUJIO , ISHIKAWA SHUICHI , KAMEYAMA TETSUO
IPC分类号： E21D9/06 , E21D9/08
摘要： PURPOSE:To reduce jacking resistance in a pipe jacking method. CONSTITUTION:There is installed an inner pipe 3 which is rotatively driven in a jack pipe 2 to be driven underground. An excavation member 8 is fixed with the tip of the inner pipe 2 in the jack pipe. The excavation member 8 has a pipe section 10, an inner pipe 11, an outer pipe 12 and an excavation bits 4. A ring-shaped gasket 22 is installed to a space between the outer peripheral surface of the pipe section 10 and the outer peripheral surface of the jack pipe 2, thereby dividing a space in front of the ring-shaped gasket 22 into a sliding material replacement chamber 23. The sliding material replacement chamber 23 is connected to a supply pipe 24 so that a sliding material may be supplied. The sliding material in the sliding material replacement chamber 23 is supplied outside from an emission nozzle 25. When a sliding material is supplied between the outer peripheral surface of the jack pipe 2 and a natural ground during jacking, jacking resistance will be reduced so that it may be possible to drive the jack pipe with higher efficiency and higher accuracy as well.

9. 发明专利

JPH07269284A UNDERGROUND JACKING DEVICE AND UNDERGROUND JACKING METHOD 失效
公开(公告)号：JPH07269284A
公开(公告)日：1995-10-17
申请号：JP6609894
申请日：1994-04-04
申请人： OBAYASHI DORO KK , TOKIWA BORING KK , NITTO KOJI KK
发明人： ASHINO KATSUKUNI , SEYA FUJIO , ISHIKAWA SHUICHI , KAMEYAMA TETSUO
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087
摘要： PURPOSE:To make it possible to replace excavation bits on the way of excavation work. CONSTITUTION:An inner pipe 3, which is rotatively driven, is mounted inside a steering pipe 2 which is advancing underground. An inner pipe 11 is fixed with the tip of the inner pipe 3 inside the steering pipe 2. The inner pipe 11 is structurally integrated with an outer pipe 12 by way of a spline structure which comprises a groove and an projection. Both pipes are axially movable within a specified range and united in one piece in the rotary direction. Excavation bits 4 are installed to the tip of the outer pipe 12 in a rocking manner. When driving, if the inner pipe 3 is moved forward, the outer pipe 12 will run into an engagement part 7 of the jack pipe 2 so that it may be fixed. The inner pipe 11 slides forward against the outer pipe 12, thereby pressing the excavation bits 4 and setting the bits at the excavation position in front of the jack pipe 2. The ground is excavated by driving the jack pipe 2, rotating the inner pipe 3 and the excavation bits in front of the jack pipe 2. Even on the way of jacking, if the inner pipe 3 is pulled backward, the excavation bits 4 will be closed so that it may be possible to replace the excavation bits by pulling out from the rear end of the jack pipe 2.

10. 发明专利

JP2005256541A Manhole cover, and method of forming heat insulating layer of manhole cover 审中-公开
标题翻译：管壳及其形成隔热层绝热层的方法
公开(公告)号：JP2005256541A
公开(公告)日：2005-09-22
申请号：JP2004072517
申请日：2004-03-15
申请人： Nippon Step Kogyo Kk , Nitto Koji Kk , With You:Kk , 日本ステップ工業株式会社 , 日東工事株式会社 , 株式会社ウイズユー
发明人： TAKAHASHI HIDEAKI , ISHIKAWA SHUICHI , YAMAKAWA MICHIKO
IPC分类号： E02D29/14 , E03F5/02
摘要： PROBLEM TO BE SOLVED: To provide a manhole cover and a method of forming a heat insulating layer of the manhole cover for making the thickness of the heat insulating layer extremely thin and easily forming the heat insulating layer.
SOLUTION: The heat insulating layer 11 is formed by applying heat insulating paint to a back face including ribs 10 and a peripheral flange 10A of the manhole cover 8. In this case, the heat insulating paint with a heat conductivity of 0.03-0.05 W/(mK) is applied to the back face of the manhole cover 8 using a spray gun and dried to form the heat insulating layer 11 with a thickness of 0.6-1.0 mm. The manhole cover with a heat insulating function equivalent to a conventional manhole cover can be easily constituted only by applying the heat insulating paint to the back face of the manhole cover 8 to form the heat insulating layer 11.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：为了提供一种人孔盖和形成该人孔盖的隔热层的方法，其使绝热层的厚度极薄并且容易地形成隔热层。解决方案：隔热层11是通过在包含肋盖10和井盖8的周边凸缘10A的背面上涂上绝热涂料而形成的。在这种情况下，导热率为0.03〜使用喷枪将0.05W /（mK）施加到人孔盖8的背面，并干燥以形成厚度为0.6-1.0mm的隔热层11。具有与常规人孔盖相当的绝热功能的人孔盖可以仅通过将耐热涂料施加到人孔盖8的背面来形成隔热层11来容易地构成。（C） 2005年，JPO＆NCIPI

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