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1. 发明专利

JP2002004769A PERMEABLE-PIPE LAYING CONSTRUCTION METHOD BY PIPE JACKING METHOD AND ITS CUTOFF DEVICE 失效
公开(公告)号：JP2002004769A
公开(公告)日：2002-01-09
申请号：JP2000187244
申请日：2000-06-22
申请人： KOMATSU MFG CO LTD , KOMATSU IM ENGINEERING KK
发明人： AKIYAMA HIROSHI , TAKEUCHI YASUO
IPC分类号： E21D9/06 , F16L1/024
摘要： PROBLEM TO BE SOLVED: To provide a permeable-pipe laying construction method and a cutoff device used for the construction method, by which cutoff into a permeable pipe can be conducted surely during the execution of works and sure permeable performance can be obtained after the execution of works. SOLUTION: The laying construction method of the permeable pipe has the first process, in which a steel pipe in fixed length and the permeable pipe internally inserted into the steel pipe are connected successively by a pipe jacking machine and buried from a starting shaft to an arrival shaft, the second process, in which opening sections at the front ends of the steel pipe and the permeable pipe reaching the arrival shaft are cut off, and the third process, in which water is cut off between a pit wall and the steel pipe, between the steel pipe and the permeable pipe and in the permeable pipe on the starting shaft side and the steel pipe is pulled out and removed to the starting shaft side or the arrival shaft side. The laying construction method of the permeable pipe has a cylindrical body fixed at the end section of the permeable pipe, an outside cutoff means being installed onto the outer circumferential surface of the cylindrical body and cutting off a section between the steel pipe and the cylindrical body and an inside cutoff means being freely mounted and demounted to and from the inside of the cylindrical body and cutting off the inside of the cylindrical body.

2. 发明专利

DE69123735D1 未知
公开(公告)号：DE69123735D1
公开(公告)日：1997-01-30
申请号：DE69123735
申请日：1991-03-13
申请人： KOMATSU MFG CO LTD
发明人： AKIYAMA HIROSHI
IPC分类号： E21B7/04 , E21B7/20 , E21B19/086 , E21D9/06

3. 发明专利

DE19914459A1 Lift sensor for hydraulic pressure cylinder 未知
公开(公告)号：DE19914459A1
公开(公告)日：1999-10-07
申请号：DE19914459
申请日：1999-03-30
申请人： KOMATSU MFG CO LTD
发明人： IWAI DAISUKE , AKIYAMA HIROSHI , TAKADA HIROSHI , INABA NOBUAKI
IPC分类号： F15B15/28
摘要： The arrangement includes a piston rod (4) arranged adjustable in a main body (3) of the cylinder. The lift sensor has a rotor (5) which is in contact with the outer surface area of the piston rod, and is revolving, following a shifting movement of the piston rod. A detection arrangement (14) detects the lift of the piston rod from the rotation of the rotor. The lift sensor comprises a device (10) which presses the rotor steadily against the outer surface area of the piston rod.

4. 发明专利

DE69123735T2 未知
公开(公告)号：DE69123735T2
公开(公告)日：1997-04-03
申请号：DE69123735
申请日：1991-03-13
申请人： KOMATSU MFG CO LTD
发明人： AKIYAMA HIROSHI
IPC分类号： E21B7/04 , E21B7/20 , E21B19/086 , E21D9/06

5. 发明专利

DE10044507A1 Micro-tunnel boring machine for pipe laying has working cylinder unit at rear of pipe, tubular component at front, tipping section to correct direction, drill head at front of tubular component and sleeve connecting pipe to drill head 未知
公开(公告)号：DE10044507A1
公开(公告)日：2001-03-15
申请号：DE10044507
申请日：2000-09-08
申请人： KOMATSU MFG CO LTD
发明人： YAMAMOTO YOSHIHISA , AKIYAMA HIROSHI , KODAIRA SADAMASA
IPC分类号： E21D9/06 , E21B7/20 , E21D9/08 , E21D9/12 , F16L1/028 , E21D9/11
摘要： The micro-tunnel boring machine for subterranean pipe laying has a working cylinder unit (23) at the rear of the pipe (2). The pipe has a narrower tubular component (4) at the front and a tipping section (6) allows the direction of boring to be corrected. A drill head (5) is fitted at the front of the tubular component. A sleeve (3) connects the pipe to the drill head and covers the tubular component. It has a section (3b) in the middle which can be bent. The micro-tunnel boring machine for subterranean pipe laying has a working cylinder unit (23) at the rear of the pipe (2). The pipe has a tubular component (4) at the front whose external diameter is less than the internal diameter of the pipe. A tipping section (6) allows the direction of boring to be corrected. A drill head (5) is fitted at the front of the tubular component which is fitted with an adjuster allowing it to be narrowed from a position where it has the same external diameter as the pipe to a second position where it is narrower than the internal diameter of the pipe. A sleeve (3) of the same diameter as the pipe connects it to the drill head and covers the tubular component. It has a section (3b) in the middle which can be bent. A coupling device allows the housing and tubular component to be connected and disconnected.

6. 发明专利

JPH10273999A PIPE JACKING DEVICE FOR SMALL BORE PIPE BURRYING MACHINE 失效
公开(公告)号：JPH10273999A
公开(公告)日：1998-10-13
申请号：JP8048297
申请日：1997-03-31
申请人： KOMATSU MFG CO LTD
发明人： AKIYAMA HIROSHI , MIZUTANI TOSHIYUKI , SUGIHIRA TSUNEO
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To provide a pipe jacking device which can minimize the number of hydraulic pipes which are exposed to the outside of the machine. SOLUTION: A cylinder tube 5a of a jacking cylinder 5 is pivotally attached on a reaction force receiver 4 laid in the rear end part of a frame, and a pair of upper and lower planer first thrust transmission members 8a, 8b are pivotally attached on the free end of a piston rod 5b of the jacking cylinder 5. Further, a second trust transmission member 13 having such a configuration as to be engaged with and disengaged from the first trust transmission members and the abut against the rear surface of a press plate is provided. Further, hydraulic pipes for actuating the jacking cylinder 5 are accommodated in the space defined between the cylinder tube 5a and the first thrust transmission members 8a, 8b. With this arrangement, the cylinders tube 5a becomes unmovable, and accordingly, a substantial part of the hydraulic pipes for actuating the jacking cylinder 5 may be composed of nonflexible metal tubes, thereby it is possible to prevent the hydraulic pieces from being damaged or to prevent dangerousness.

7. 发明专利

JP2002061494A SMALL-DIAMETER PROPULSION MACHINE 失效
公开(公告)号：JP2002061494A
公开(公告)日：2002-02-28
申请号：JP2000253276
申请日：2000-08-24
申请人： KOMATSU MFG CO LTD
发明人： YAMAMOTO YOSHIHISA , AKIYAMA HIROSHI , KODAIRA SADATADA
IPC分类号： E21D9/087 , E21D9/06 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To provide a small-diameter propulsion machine that can make a disk cutter stably excavate even when such an external force that compresses the disk cutter inward acts on the disk cutter during excavation, can reduce the wear of the shaft of a screw auger when the shaft is rotated, and can prevent the breakage of a leading pipe when the pipe is oscillated. SOLUTION: A slide case 20 and a shaft member 19 are constituted in such a way that, when the case 20 is pushed in the member 19, a first ring member 30 is tightly fitted in a second ring member 31 and the case 20 is fixed to the member 19. In addition, the case 20 is released from the member 19 only when a pulling-out force of a prescribed value or higher acts on the case 20.

8. 发明专利

JP2000310095A THRUST TRANSMISSION DEVICE FOR PROPELLER 失效
公开(公告)号：JP2000310095A
公开(公告)日：2000-11-07
申请号：JP12015499
申请日：1999-04-27
申请人： KOMATSU MFG CO LTD
发明人： YAMAMOTO YOSHIHISA , SUGIHIRA TSUNEO , MIZUTANI TOSHIYUKI , AKIYAMA HIROSHI
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To provide a thrust transmission device capable of keeping a wide space in a preceding conduit, simply and easily repeating the transmission and cancel of thrust and receiving drilling torque reaction of the preceding conduit. SOLUTION: This transmission device includes a thrust transmission device main body 10 consisting two engagement plates 13, 13 in approximately circular shape in view from a propelling direction, a pin 14 for rotatably joining these engagement plates 13, 13 at their ends with each other to be pivotally mounted on an annular plate 9 and an expandable hydraulic jack 15 for connecting the engagement plates 13, 13 at their other ends with each other. An engagement groove 12 is formed in the inner periphery of an outer cylinder A along the circumferential direction.

9. 发明专利

JP2000130080A OSCLLATING PORTION SUPPORTING CONSTRUCTION FOR SMALL- APERTURE DRIVE MACHINE 失效
公开(公告)号：JP2000130080A
公开(公告)日：2000-05-09
申请号：JP30004598
申请日：1998-10-21
申请人： KOMATSU MFG CO LTD
发明人： MIZUTANI TOSHIYUKI , IKEUCHI SHINPEI , AKIYAMA HIROSHI , SUGIHIRA TSUNEO
IPC分类号： E21D9/093 , E21D9/06 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To provide a supporting construction for oscillating portion capable of effectively utilizing the internal space even for a guiding pipe having a small diameter and of oscillating with a high accuracy. SOLUTION: A guiding pipe 1 has two or more divided outer cylindrical bodies 31, 34, of which, one set of at least a pair of front and rear divided outer cylindrical bodies 31, 32 are coupled and supported in a freely oscillating manner by a plurality of oscillating jacks 36. One end 36a of the oscillating jack 36 is fixed to one 32 of the pair of divided outer cylindrical body 31, 32, and other end 36b of the oscillating jack 36 is spherically supported by the spherical supporting body 38a of the other divided outer cylindrical body 31. Moreover, the connecting portion of the pair of divided outer peripheral cylindrical bodies 31, 32 connected liquid tightly through seal member 35, and the seal member 35 is arranged near on the circular plane containing a plurality of the spherical supporting portion 38a in a state of the oscillating jack expanded by half stroke.

10. 发明专利

JPH10280874A PIPE PROPULSION METHOD AND PIPE PROPULSION UNIT 失效
公开(公告)号：JPH10280874A
公开(公告)日：1998-10-20
申请号：JP9788397
申请日：1997-04-02
申请人： KOMATSU MFG CO LTD
发明人： AKIYAMA HIROSHI , IKEUCHI SHINPEI , MIZUTANI TOSHIYUKI , SUGIHIRA TSUNEO
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To remarkably reduce the construction cost for an underground pipe by reducing the size of a starting shaft. SOLUTION: According to this pipe propulsion method, an underground pipe 5 is sequentially connected to the rear end of an outer cylinder 1 of a leading pipe 3, a connecting screw casing 6 is sequentially connected to the rear end of the screw casing 2 of the leading pipe 3, and the leading pipe 3 is propelled under the ground through the underground pipe 5 and the connecting casing 6 to sequentially bury the underground pipe 5. In this case, the leading pipe 3 is propelled under the ground in such a manner that the rear end surface of the underground pipe 5 is substantially flush with the rear end surface of the connecting screw casing 6 built in the underground pipe 5.

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