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1. 发明专利

JPH10252398A SEGMENT ASSEMBLING APPARATUS 失效
公开(公告)号：JPH10252398A
公开(公告)日：1998-09-22
申请号：JP5920797
申请日：1997-03-13
申请人： KOMATSU MFG CO LTD
发明人： MITANI NORIO , MIURA KEIJI , KAWAI KAZUNARI , IMAMURA TAKESHI , BANDO EIGO , KIKUCHI YUKIO
IPC分类号： E21D11/40
摘要： PROBLEM TO BE SOLVED: To enlarge a space in the direction of radius at a segment supply part for a shield machine in small and medium diameter by a method wherein the position of the rotative center of a rotating body is offset toward a position above the center of axis of the shield machine. SOLUTION: A segment assembling device 1 of a shield machine 2 is composed of a rotating body 7 that executes clamping and assembling segment pieces 6 by operations of a clamping claws 7a and assembling mechanisms 7b and a segment supply device 8 that carries the segments pieces 6 from the rear part to the lower part of the rotating body 7. The rotative center 9 of the rotating body 7 is offset from the center of axis of the shield machine 2 toward the upside within the limits where interference with other devices is not made, and on assembling the segment pieces 6 stroke of the rotating body 7 is controlled so that the segment pieces 6 can be adjusted to run along the wall of a tunnel. Thereby, a space in the direction of radius at a segment supply part can be enlarged, and an insertion space can be ensured for the segment supply device 8 even though the shield machine 2 is in a structure of small and medium diameter.

2. 发明专利

JPH08199972A SIMULTANEOUSLY WORKING EXTENSIBLE SHIELD MACHINE AND SHIELD DRIVING METHOD BY USE THEREOF 失效
公开(公告)号：JPH08199972A
公开(公告)日：1996-08-06
申请号：JP901795
申请日：1995-01-24
申请人： SHIMIZU CONSTRUCTION CO LTD , KOMATSU MFG CO LTD
发明人： MIYAZAWA KAZUO , KUHARA TAKASHI , KUBO HIROYUKI , NISHIZAWA IZUMI , BANDO EIGO
IPC分类号： E21D9/06
摘要： PURPOSE: To increase the excavating efficiency, by constituting the machine body so as to be extensible by jacks at the front body and the rear body and further, shake the head and contracting the machine body on excavating a bend to lessen overbreaking. CONSTITUTION: The front body 2 provided with a rotary cutter head or a head- shaking structure, and the rear body 3 provided with a segment erector or the like are extensibly connected to each other by slide jacks 4. The jackes are stretched during a linear excavation and contracted during a curved excavation. The inner face of excavated tunnel is lined with segments 5 and the shield jacks 10 are stretched with the reaction on the segments 5 to thrust the shield machine 1. At linear parts, the machine is largely advanced and the segments are assembled to correspond to the advance. At bends, it is slowly advanced and even in an sharp curve, the body is advanced simultaneously with the same machine. In this way, overbreaking is decreased and the sectional area of the starting shaft can be reduced.

3. 发明专利

JP2000337089A STRUCTURE FOR ATTACHING DISC CUTTER 失效
公开(公告)号：JP2000337089A
公开(公告)日：2000-12-05
申请号：JP15405499
申请日：1999-06-01
申请人： KOMATSU MFG CO LTD
发明人： BANDO EIGO
IPC分类号： E21D9/10 , E21D9/08 , E21D9/087
摘要： PROBLEM TO BE SOLVED: To provide a compact structure by eliminating directivity in attaching a disc cutter to a casing. SOLUTION: This structure for attaching a disc cutter includes key blocks 13 each having an inclined face which abuts the inclined face of the shaft fixing part 5 of the disc cutter 1 while taking the form of a wedge, a casing 6 having a supporting part for supporting the shaft fixing parts 5 and having a clearance part for removing the shaft fixing part 5, fixing blocks removably provided to cover the clearance part, and fixing bolts 18 passing through the fixing blocks to tighten the key blocks 13 backward. The attached positions of the key blocks 13 to the right and left shaft fixing parts 5 are opposite each other at the right and left of a shaft, and the key blocks 13 can be disengaged and removed by rotating the disc cutter 1 through a predetermined angle θ.

4. 发明专利

JPH1193568A TUNNELING MACHINE 失效
公开(公告)号：JPH1193568A
公开(公告)日：1999-04-06
申请号：JP25648897
申请日：1997-09-22
申请人： KOMATSU MFG CO LTD
发明人： MITANI NORIO , BANDO EIGO
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087 , G01V9/00
摘要： PROBLEM TO BE SOLVED: To provide a cutter for sensing an obstruction which can be easily mounted without changing the shape of a conventional tunneling machine and can precisely grasp the presence and the shape of an obstruction and can also prevent beforehand damage to an earth-sand cutting cutter. SOLUTION: Cutter bits 6 and a plurality of obstruction sensing cutters 8 extending forward of preceding cutters 7 are provided on the front side of a cutter head and a strain gauge is provided in the cutter head. When the cutters 8 contact an obstruction, the gauge captures the force generated at the contact as a variation in external loads and a signal of the variation is inputted into a control device. The control device judges whether the variation in external loads is caused by a gravel or by an obstruction such as a pile and grasps the shape and location of the obstruction.

5. 发明专利

JPH09184396A CUTTER HEAD STRUCTURE OF TUNNEL EXCAVATOR AND METHOD OF TUNNEL EXCAVATION 失效
公开(公告)号：JPH09184396A
公开(公告)日：1997-07-15
申请号：JP35292295
申请日：1995-12-28
申请人： KOMATSU MFG CO LTD
发明人： MITANI NORIO , BANDO EIGO
IPC分类号： E21D9/087 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To provide a cutter head structure having hollow airtight working spaces through which persons can pass and work in a cutter head spoke. SOLUTION: Constitution is performed in that the tunnel excavator has a cutter head 4 composed of a plurality of spokes 2 rotatably set on the front part of a body 1 and a cutter head face plate 3 for cutter attaching fixed on the front part of the spoke 2. In this case, a front opening and closing gate 5a set in one of the plurality of the spokes 2 and mounted on the cutter head plate 3 and working spaces 6a-6d composed of a wall face set in the form of an enclosure rearward of the cutter head face plate 3 are provided.

6. 发明专利

JPH11107682A SHIELD MACHINE 失效
公开(公告)号：JPH11107682A
公开(公告)日：1999-04-20
申请号：JP26965497
申请日：1997-10-02
申请人： KOMATSU MFG CO LTD
发明人： SAITO NAOKI , BANDO EIGO , KAWAI KAZUNARI , MITANI NORIO
IPC分类号： E21D9/087 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To ensure mounting spaces of various devices at the rears of driving shafts for a cutter frame by installing a shaft section at a central section and a cylindrical section on the outer circumferential side as the driving shafts, connecting the shaft section and the cylindrical section by a flange section and constituting a shield machine and mounting a large-diameter bearing to the cylindrical section. SOLUTION: A center shaft 2 is arranged onto the central axis of a shield machine body 1, and a cutter frame 3 is cantilever-fixed to a front end section. The center shaft 2 is formed in a solid shape, and a shaft section 2a along the central axis and a circumferential section 2b are connected by a flange 2c. An external surface on the chamber 5 side of the flange section 2c and the external surface of the shaft section 2a are formed in a smoothly continuous curved shape. Chemical injection holes 7 are formed between the shaft section 2a and the flange section 2c, and chemical injection devices 8 are set up. A pinion 11 is engaged with a ring gear 9 consisting of the internal gears of the cylindrical section 2b, and driven by a motor 10. The center shaft 2 is supported to a cutter head support 13 through a large-diameter bearing 12 at the place of the ring gear 9, and a space is ensured at the rear of the shaft section 2a.

7. 发明专利

JPH10110600A BACK FILLING EXCAVATOR AND BACK FILLING CONSTRUCTION METHOD USING IT 失效
公开(公告)号：JPH10110600A
公开(公告)日：1998-04-28
申请号：JP26619696
申请日：1996-10-07
申请人： MITSUI CONSTR , KOMATSU MFG CO LTD
发明人： HONDA MASATO , ISHIDA KIKUO , KAWAHARA KEIICHI , BANDO EIGO
IPC分类号： E21D9/06 , E21F15/00
摘要： PROBLEM TO BE SOLVED: To eliminate the need of a buckling checking mechanism and reduce cycle time of back filling by separately forming a partition wall for longitudinally cutting off the internal space of a skin plate on an inner partition wall and an outer partition, and providing inner and outer turning jacks corresponding to the respective partition walls. SOLUTION: With an outer partition wall 14 pressed to an existing back filling material 19, an outer turning jack 16 is elongated to take reaction force in the existing back filling material 19, and an excavator main body 1 is advanced. Simultaneously while an inner partition wall 13 is pulled back by contraction of an inner turning jack 15, back filling material is injected between the inner partition wall 13 and the back filling material 19 through a back filling injection pipe 17. Accordingly, the advance of the excavator main body and injection of back filling material to the rear space of the partition wall are performed concurrently, so that the cycle time per one span can be reduced. Furthermore, as turning can be performed with the reaction force taken in the existing back filling material, it is not necessary to provide a buckling checking mechanism in the front of the partition wall.

8. 发明专利

JPH1061375A STORAGE AND HOLD DEVICE OF ENERGY SUPPLY CABLE AND THE LIKE 失效
公开(公告)号：JPH1061375A
公开(公告)日：1998-03-03
申请号：JP21358496
申请日：1996-08-13
申请人： KOMATSU MFG CO LTD
发明人： BANDO EIGO , HOSODA KAZUKI , KANBAYASHI HIDEO
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To ensure the operation by arranging a cable drag chain which makes a folding back part movable in an annular space formed out of a cylindrical fixing body and a rotary body arranged coaxially with the fixing body and supporting an energy supply cable. SOLUTION: A storage and hold device is provided in an annular space part surrounded by an exterior wall 6 on a fixing body side of a shield machine and an interior wall 7 on a rotary body side of an elector turn ring attached in a concentric circle. One end of a supply cable 8 is connected with a take-out port 9 on the fixing body side and the other end thereof is connected to a take-out port 9' on the rotary body side. A cable having such length that it can move in a scope of a rotation angle is held by a cable drag chain 11 in a condition in which it is inverted in an inversion part A. An inner side of the cable drag chain 11 which is inverted is held by a core frame 16 through a roller. Consequently, it is possible to prevent hanging down due to the self- weight at all times when an elector turns clockwise and counterclockwise. Accordingly, it is possible to prevent danger of cutting, disconnection, and rupture of cables securely.

9. 发明专利

JPH11256993A STROKE DETECTING DEVICE FOR MOVING DEVICE IN TUNNEL BORING MACHINE 失效
公开(公告)号：JPH11256993A
公开(公告)日：1999-09-21
申请号：JP5483198
申请日：1998-03-06
申请人： KOMATSU MFG CO LTD
发明人： BANDO EIGO , MITANI NORIO , KAWAI KAZUNARI , YAMAMOTO YOSHIHISA
IPC分类号： E21D9/087 , E21D9/06 , E21D9/08 , G01B21/00
摘要： PROBLEM TO BE SOLVED: To improve the water proof function of a working section to secure the reliability of detection function for a ling term by wholly forming a section from a connection part between a working body being in contact with the outside of a machine body and a push and pull wire for detecting its working quantity to a stroke measuring section in a water proof structure. SOLUTION: This is a stroke detecting device for a moving device (copy cutter) in a tunnel boring machine, a case 11 for accommodating a movable member 12 in an attaching part 2 of the moving device (copy cutter) is equipped with a closed space having a water proof structure. A push and pull wire 6 to connect the movable member 12 with the stroke measuring section 4 is connected through a rod having a universal joint structure in the closed space of the case 11, and its section from the case 11 where the movable member 12 is accommodated and supported to the stroke measuring section 4 is covered with a protecting tube 23 and thereby formed in a water proof structure.

10. 发明专利

JPH1096391A ECCENTRIC STARTING CONSTRUCTION METHOD OF SLAVE SHIELD MACHINE IN MASTER/SLAVE SHIELD EXCAVATOR 失效
公开(公告)号：JPH1096391A
公开(公告)日：1998-04-14
申请号：JP25042396
申请日：1996-09-20
申请人： KOMATSU MFG CO LTD
发明人： BANDO EIGO , MITANI NORIO
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087
摘要： PROBLEM TO BE SOLVED: To enable a small-bore tunnel to be constructed so as to make the center line of it eccentric relative to the center line of a large-bore tunnel, and facilitate drilling of a tunnel according to the use, by bendingly executing a shield work so that the center line of a slave shield machine is aligned with the center line of the small-bore tunnel, before reaching the starting point of the slave shield machine. SOLUTION: A master shield machine 1 and a slave shield machine 2 are integratedly shielded, and a large-bore tunnel 17 is drilled along the center line C1 up to a little this side of the starting point of the slave shield machine 2. Next the shield machines are turned to the direction making a front shield eccentric relative to a rear shield, and after shielding by a fixed distance, they are turned so that the front shield is in the opposite direction, the center line C2 of the slave shield machine 2 is aligned with the center line C1 of the master/slave shield excavator, and then the slave machine 2 is started so as to drill a small-bore tunnel 18. Hereby a desired tunnel according to the utilization such as piping facilities of sewerage or a station of the subway can be drilled extremely easily.

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