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51. 发明专利

JPH0599390A BRANCH JOINT FOR MOUNTING PIPE PROPULSION 失效
公开(公告)号：JPH0599390A
公开(公告)日：1993-04-20
申请号：JP26211791
申请日：1991-10-09
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： F16L41/04 , F16L41/08
摘要： PURPOSE:To provide a branch joint for mounting pipe propulsion which has low propulsion resistance, and does not cause damage to the water-stopping function even when a large moment is applied to a connection part with a main pipe in the direction of bending. CONSTITUTION:A mounting pipe thrusting branch joint is composed of a joint body 21, the diameter of which is larger than the hole diameter of a connection hole of a main pipe, a spigot 22 for the main pipe, which is extended from one end of the joint body and to be fitted into the connection hole, an elastic engaging-locking piece 26, which is provided at least at the tip part of the spigot, and a burr 27 provided at the tip of which is engaged with the inner face of the main pipe to prevent the joint body from slipping-off, with the spigot fitted into the connection hole, and a water stopping member 5 for sealing between the main pipe and the joint body in a state where it is caught between the outer face of the main pipe around the connection hole and the end face of the joint body. Further, plural thin plate-like projections 24, each end face of which abuts nearly on the outer face of the above main pipe with the spigot 22 fitted into the connection hole 31, are provided to be projected from the outer face of the joint body so that they surround the joint body and are parallel to the axis of the joint body.

52. 发明专利

JPH0599389A BRANCH PART JOINING JOINT, MOUNTING PIPE AND BRANCH PART CONNECTING STRUCTURE 失效
公开(公告)号：JPH0599389A
公开(公告)日：1993-04-20
申请号：JP26211691
申请日：1991-10-09
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： F16L41/08
摘要： PURPOSE:To provide a joint which can be easily set in a connecting hole of a main pipe with small inserting force without causing increase in propulsion resistance, and eliminates the possibility of slipping-off from the connecting hole of the main pipe after its setting, and realize connecting structure which is excellent in the water-stopping ability, strength, etc., using this joint. CONSTITUTION:More than one elastic engaging-locking pieces 2c, 2c which are curved as a whole towards their tips so as to be positioned inside a joint, are formed on a spigot 2a provided on one end part of the joint 1, and burrs 2d, 2d are provided to be projected from the outer face of the tip part of the engaging locking pieces. When the burrs 2d, 2d are engagingly locked on the inner face side of a hole edge part of a connecting hole 3a of a main pipe 3 after a spigot 4a of a mounting pipe 4 is inserted into the joint 1, a rubber packing 5 provided on the outer peripheral surface of the joint-spigot seals the gap between the joint 1 and the main pipe 3.

53. 发明专利

JPH0526375A BRANCH PIPE INSTALLING METHOD ON MAIN PIPE AND COUPLING THEREFOR 失效
公开(公告)号：JPH0526375A
公开(公告)日：1993-02-02
申请号：JP17826691
申请日：1991-07-18
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： F16L1/024 , F16L41/08
摘要： PURPOSE:To install a branch pipe on a main pipe buried underground easily in one process, and to secure a sufficient dead water property and the like in the installing position. CONSTITUTION:A branch pipe 5 is pushed in the ground while excavating the ground from the surface of the ground so as to contact or approach its tip to the pipe wall of a main pipe 3 underground, and a hole is formed to the pipe wall of the main pipe 3 in such a condition to form a connecting hole 3a for branch pipe. And after the connecting hole 3a is formed, a coupling 10 is inserted in the branch pipe 5 so as to fit to the connecting hole 3a. By fitting in such a way, elastic locking pieces 11d...11d provided on the tip of the coupling 10 are locked to the inner surface of the main pipe 3, and thereby, the main pipe 3 and the branch pipe 5 are connected in a specific condition through the coupling 10.

54. 发明专利

JPH0510488A METHOD OF FITTING LATERAL TO MAIN PIPE AND JOINT USED IN THE METHOD 失效
公开(公告)号：JPH0510488A
公开(公告)日：1993-01-19
申请号：JP16688591
申请日：1991-07-08
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： E03F3/04 , F16L1/024 , F16L41/08
摘要： PURPOSE:To always obtain connection excellent in water cut-off efficiency to a main pipe by boring a hole for passing a lateral therethrough and simultaneously burying the lateral in the ground until it strikes the main pipe without digging and back filling works. CONSTITUTION:A lateral 2 is directly pressed in the ground to be substantially brought into contact with a main pipe 1. After that, a joint fitting hole 5 is bored in a position of the main pipe 1 facing the interior of the lateral, and a joint 6 having an enlarged diameter portion 63 which can be enlarged in diameter through a diameter enlarging means 8 on one end thereof is mounted in the joint fitting hole 5 in such a manner that the enlarged diameter portion 63 enter the interior of the lateral. Subsequently, the diameter enlarging means is inserted inside the enlarged diameter portion to enlarge the diameter of the enlarged diameter portion 63 so that the outer wall surface of the enlarged diameter portion and the inner wall surface of the lateral closely adhere to each other to be water-tight, and the lateral 2 is connected to the main pipe 1 through the joint 6.

55. 发明专利

JPH04198595A CONSTRUCTION METHOD OF PIPE LINE 失效
公开(公告)号：JPH04198595A
公开(公告)日：1992-07-17
申请号：JP33119090
申请日：1990-11-28
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： E21D11/00 , B29C53/58 , B29C63/00 , B29L23/00 , E21D11/04 , F16L58/02
摘要： PURPOSE:To reduce greatly a back-filling agent and to curtail a construction cost by providing a spiral pipe in a shield with turning effort through a pipe manufacturing machine and a rotary driving machine to widen it in diameter, and filling a gap between the spiral pipe and shield with the back-filling agent. CONSTITUTION:A belt-shaped body 10 is wound up in the shape of a spiral by a pipe manufacturing machine 20 to manufacture a spiral pipe 10' interlocked with each of side edges adjacent to the belt-shaped body 10, and it is inserted in a shield 81 over the full length thereof. After that, the front end of the spiral pipe 10' is fixed to the end of the shield 81, torque is provided to the spiral pipe 10' while manufacturing it by the pipe manufacturing machine 20 in a state to clamp the spiral pipe 10' with a rotary driving machine 30, and the front end part of the spiral pipe 10' is widened in diameter to adhere to the circumferential surface of the shield 81. The clamp process and the process of widening in diameter are repeated to line the circumferential surface of the shield 81 over the full length thereof, and the back-filling agent is filled between the spiral pipe 10' and shield 81.

56. 发明专利

JPH04194475A LINING CONSTRUCTION METHOD FOR EXISTING PIPE 失效
公开(公告)号：JPH04194475A
公开(公告)日：1992-07-14
申请号：JP33118890
申请日：1990-11-28
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： F16L1/00 , B29C63/30
摘要： PURPOSE:To insert a helical pipe of small diameter easily diameter-spread in an almost closely attached condition to an internal peripheral surface of an existing pipe by successively inserting the helical pipe, press-fitting a wire rod between side surfaces, into the existing pipe, and detaching the wire rod to spread the diameter while giving propulsive force in a condition that a band- shaped unit point end is fixed. CONSTITUTION:At the time of winding, a band-shaped unit 10, stopped in a condition that both side the fellow edge parts mutually piled together can be slided in the lengthwise direction, is helically wound and also press-fitting a wire rod 30, so that both side the fellow edge parts are prevented from sliding, between a step differenced part 14a, placing one side edge part in a step dropping condition, and a side surface 12a in the other side edge part opposed to the step differenced part 14a to manufacture a helical pipe 10'. The manufactured helical pipe 10' is successively inserted into an existing pipe 81, and the wire rod 30 is detached from the helical pipe 10' to spread its diameter while giving propulsive force to the band-shaped unit 10 in a condition that a point end of the band-shaped unit of the helical pipe 10' is fixed to the existing pipe 81.

57. 发明专利

JPH0447043A LINING WORK CONTROL DEVICE FOR LAID PIPE 失效
公开(公告)号：JPH0447043A
公开(公告)日：1992-02-17
申请号：JP15611590
申请日：1990-06-14
申请人： SEKISUI CHEMICAL CO LTD
发明人： NAKAJIMA KOSHIROU , MORIKAWA KENICHI , KITAYAMA YASUSHI
IPC分类号： E03F7/00 , B29C63/32
摘要： PURPOSE:To surely enlarge the diameter of a spiral pipe by interposing a wire between the side peripheral sections of mutually adjacent band shaped bodies, forming a spiral pipe by a pipe manufacturing means mutually meshing the side peripheral sections, and thereby enlarging the spiral pipe while the spiral pipe is inserted into an existing pipe. CONSTITUTION:The side peripheral sections of mutually adjacent band shaped bodies 10 are mutually meshed, and a wire 30 is locked in such a way that the meshed portion is increased in frictional resistance, so that a spiral pipe 10a is thereby formed. After the spiral pipe 10a is inserted into an existing pipe 81 so as to be advanced, the tip end of the spiral pipe 10a is fixed onto the existing pipe 81 thereafter. In the second place, the wire 30 is separated at a specified speed from the spiral pipe 10b while propulsion force is being imparted to the band shaped body 10, so that the spiral pipe 10a is thereby enlarged in diameter while the side peripheral sections of the respective band shaped bodies 10 are mutually slid. By this constitution, the deteriorated existing pipe 81 can thereby be recycled.

58. 发明专利

JPH03288076A CONSTRUCTION METHOD FOR LINING OF EXISTING PIPE 失效
公开(公告)号：JPH03288076A
公开(公告)日：1991-12-18
申请号：JP8605990
申请日：1990-03-30
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： F16L1/00 , B29C63/34
摘要： PURPOSE:To secure the diameter enlargement of a spiral tube by winding a banded body spirally, then fixing wire material between the opposed faces of the side edge parts of the banded body through adhesive, and detaching the wire material after the insertion of the spiral tube so as to make the side edge parts mutually slidable. CONSTITUTION:A banded body 10 with protrusions 12 disposed at one side edge part thereof and recessions 14 disposed at the opposite side edge part thereof is wound spirally by a tube manufacturing machine 20, and the insert part 12b of each protrusion 12 is inserted into each recession 14 to lock both side edge parts mutually. At this time, wire material 30 is interposed in a gap 15 formed between the opposed faces of the respective side edge parts through adhesive 31 to fix the above-mentioned locked part rigidly. In this state, the banded body 10 is pushed forward as a spiral tube 10' from the tube manufacturing machine 20 into a sewer pipe 81. The tip of this spiral tube 10' is fixed at the sewer pipe 81, and the tube manufacturing machine 20 is driven while pulling the wire material 30 at the tip part inward the spiral tube 10'. Then the wire material breaks away from the spiral tube 10'. The fixing of the above-mentioned locked part is thereby released to make the insert parts 12b slidable in the recessions 14, and the spiral tube 10' is enlarged in its diameter by this sliding motion and stuck to the inner face of the sewer pipe 81.

59. 发明专利

JPH03190720A METHOD OF LINING CONSTRUCTION OF EXISTING PIPE 失效
公开(公告)号：JPH03190720A
公开(公告)日：1991-08-20
申请号：JP33385289
申请日：1989-12-21
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： F16L1/00 , B29C63/32 , B29C63/34 , B29L23/00
摘要： PURPOSE:To facilitate and smooth operation by a method wherein a spiral pipe is manufactured by superposing and bonding adjacent side sections, and inserted into an existing pipe, the front end of the spiral pipe is fixed to the existing pipe, bonding is peeled while the spiral pipe is pushed in, side edge sections are slid mutually and a diameter is expanded in a method of construction lining the inside of the decrepit existing pipe by the spiral pipe. CONSTITUTION:A beltlike body 10 consisting of polyvinyl chloride, etc., and having a substrate 12, to which a fitting protrusion 13, a reinforcing rib 19 and a fitting recessed strip 15 are disposed upright, is wound spirally while a surface is directed to the outside, thus preparing a spiral pipe 10'. That is, the spiral pipe 10' is introduced and propelled into an existing pipe 81 while being manufactured by a pipe making machine 20. A front end in the propulsive direction is fixed at the end section of the existing pipe 81. A wire rod 30 extended from the front end is drawn, and the side edge section of a substrate 12, the thin section of a recessed section 12b of which is cut and which is bonded with a stepped section 14, is separated from other sections of the substrate 12. When the spiral pipe 10' is further propelled under the state, a diameter is expanded until the spiral pipe is fast stuck to the inside diameter of the existing pipe 81 by the sliding of a peeling edge section. Accordingly, operation can be conducted easily and positively.

60. 发明专利

JP2019019505A トンネル更生方法及びロックボルト审中-公开
公开(公告)号：JP2019019505A
公开(公告)日：2019-02-07
申请号：JP2017137397
申请日：2017-07-13
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： E21D11/04 , E21D20/00
摘要：【課題】より効果的にトンネルを延命することが可能なトンネル更生方法、及び、該トンネル更生方法に用いるロックボルトを提供する。【解決手段】本発明のある局面に従うトンネル更生方法は、地山に建設されたトンネルを更生する方法である。このトンネル更生方法は、トンネルの内側に更生管を形成するステップと、更生管の内側から地山にロックボルトを打設するステップと、更生管とトンネルとの間、及び、ロックボルトと地山との間に裏込め材を注入するステップとを含む。【選択図】図2

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