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1. 发明专利

JPH11229786A CONCRETE SEGMENT AND ITS MANUFACTURE AS WELL AS CONCRETE SEGMENT JOINT STRUCTURE 失效
公开(公告)号：JPH11229786A
公开(公告)日：1999-08-24
申请号：JP3519198
申请日：1998-02-17
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To prevent the defectives of segments near joint fittings. SOLUTION: Elastic members 6, 7, 8 absorb shock applied to joint fittings 1, 2, 3 for three segments Sa due to collision. Defectives due to shock at the segment angles near the joint fittings are thus reduced. When the joint faces Ka, Kb, Ga, Gb are abutted to one another to join the segments Sa, the elastic members prevent the severe collision of the joint faces with one another as a result of contact with the joint face of the other, this to reduce the defectives of the segments. The elastic members 6, 7, 8 are compressed among three segments Sa being joined to one another and made in liquid tightness in these areas to improve in water stop performance.

2. 发明专利

JPH11221814A FORM FOR PRODUCING HEXAGONAL SEGMENT 失效
公开(公告)号：JPH11221814A
公开(公告)日：1999-08-17
申请号：JP2762098
申请日：1998-02-09
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , NISHIMURA SHUICHI , HASHIGUCHI AKIO
IPC分类号： E21D11/08 , B28B7/02 , B28B7/10
摘要： PROBLEM TO BE SOLVED: To inexpensively produce a special hexagonal segment whose bonding end faces are formed in tapered shapes. SOLUTION: A form 30 is approximately constituted of a bottom plate block with a bottom plate 31 for forming the inner peripheral face of a hexagonal segment, circular arc-like side plates 33 provided on both side parts of the bottom plate block and approximately V-shaped end plstes 34 by plan view for connecting both ends of the side plates 33. A space part formed by the bottom plate, the side plates 33 and the end plates 34 is made as a space S for feeding concrete. A liner 41 wherein the face of the concrete feeding space S side is formed at the same angle of inclination as the inclined bonding end face of the hexagonal segment to be molded is removably fitted on the side plate 33 of at least one side part side of the form.

3. 发明专利

JPH1082292A SEGMENT 失效
公开(公告)号：JPH1082292A
公开(公告)日：1998-03-31
申请号：JP23826396
申请日：1996-09-09
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To protect an end face without breaking corner sections even by an impulse by conveyance, etc., by sticking steel plates onto both-side end faces at acute corner sections adjoined while holding a long side in the parallel two sides of an isosceles trapezoidal segment. SOLUTION: End faces 11, 12 along the parallel long and short sides of an isosceles trapezoidal segment 10 are curved in equal curvature, and forms a part of a cylinder. Corner sections 14, 14 adjoined while holding the end face 11 along the long side and formed by the end face 11 and end faces 13, 13 along equal sides are set at an acute angle. The corner sections 15, 15 of the end face 12 along the short side and the end faces 13, 13 are set at an obtuse angle. L-shaped steel plates 20 are stuck in conformity with the corners along the end faces 11, 13 on both sides while holding the corners at the corner sections 14 formed in the acute angle. The steel plates 20 protect the end faces as the mutual mating faces of the segments 10.

4. 发明专利

JPH1082290A RECTANGULAR CONCRETE SEGMENT AND JOINING STRUCTURE THEREOF 失效
公开(公告)号：JPH1082290A
公开(公告)日：1998-03-31
申请号：JP23826196
申请日：1996-09-09
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To reinforce a joining force against the pressure directed outward from the center of a tunnel. SOLUTION: Two rectangular concrete segments 1 are arranged to butt their mutual end joining faces 1c and 1d so that they may be connected to each other in the shape of a ring where one side joining face 1a of another rectangular concrete segment is arranged to butt the side joining faces 1b and 1c on one side of the two rectangular concrete segments 1 while a joining pin 3a provided on one steel-made plate 3 forming the side joining face 1a is fitted into a joining hole 4a provided on the other steel-made plate 4. The screw of a joining bolt inserted into an Insertion hole of one rectangular concrete segment 1 is screwed into the screwed hole of the joining bolt 6 inserted into the insertion hole of the other rectangular concrete segment 1 and integrally joined staggeringly.

5. 发明专利

JPH1082284A JOINING STRUCTURE OF SEGMENT 失效
公开(公告)号：JPH1082284A
公开(公告)日：1998-03-31
申请号：JP23706696
申请日：1996-09-06
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To obtain strong bonding power and high cutoff properties by forming a projecting section to the joint surface of one segment, forming a recessed section to the joint surface of the other segment and fitting both segments and mutually bonding the joint surfaces with adhesives. SOLUTION: A recessed section 1e is formed to the side-section joint surface 1a of a hexagonal segment 1 and a projecting section 1f to the other side-section joint surface 1b. A recessed section 1g and a projecting section 1h are formed to inclined joint surfaces 1c, 1d. The recessed section 1g of one hexagonal segment 1 and the projecting section 1h of the other hexagonal segment 1 are fitted mutually. The mutual side-section joint surfaces 1a, 1b and the mutual inclined Joint surfaces 1c, 1d are bonded and unified with adhesives, and clearances among the mutual joint surfaces are prevented and cutoff properties are improved.

6. 发明专利

JPH09272113A FORM FOR MANUFACTURING HEXAGONAL SEGMENT 失效
公开(公告)号：JPH09272113A
公开(公告)日：1997-10-21
申请号：JP8178996
申请日：1996-04-03
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , NISHIMURA SHUICHI , SOMEYA HIROKI
IPC分类号： B28B7/24 , B28B7/10 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To prevent a molded segment from breaking by a method wherein a pair of side plates, which are installed in upright position on bottom plates so as to form both the side parts of a hexagonal segment, and a pair of end plates forming both the end parts of the side plates are respectively provided movably in a direction separating from the hexagonal segment. SOLUTION: This form 1 for manufacturing a hexagonal segment is composed of bottom plates 4, arcuate side plates 2 provided on both the side part sides of the bottom plates 4, end plates 3 for forming the end part sides of the hexagonal segment by connecting both the ends of the side plates 2 and a bed 5 supporting the above-mentioned members so as to conform to the shape of the hexagonal segment, which is molded from a concrete placement space S formed by the bottom plates 4, the side plates 2 and the end plates 3. By means of opening and closing means consisting of end plate slide shafts, shaft inserting holes, lower plates, guide rails, a pedestal, guide rollers and opening and closing bolts 16, the end plates 3 can be moved from a position where the end plates are the nearest to each other to a position where the end plates are the furthest apart from each other.

7. 发明专利

JPH11223091A JOINTING DEVICE FOR SEGMENT, SEGMENT, AND SEGMENT JOINTING STRUCTURE 失效
公开(公告)号：JPH11223091A
公开(公告)日：1999-08-17
申请号：JP2480998
申请日：1998-02-05
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04
摘要： PROBLEM TO BE SOLVED: To provide a device for making easier the transportation of segment or the like without having a projected portion which projects outside the segment. SOLUTION: An inserting portion 5a is inserted between insertion step portions 2c, 3c of a jointing metal device 2 for a right side portion and a jointing metal device 3 for a left side portion which face each other and also inserted to an insertion slit 1c of a jointing metal part 1 for an end portion, insertion portions 5b, 5c are respectively inserted between semi-cylindrical fitting portions 2d, 3d facing each other of the jointing metal device 2 for the right side portion and a joining metal device 3 for the left side portion and also inserted to a fitting hole 1d of the jointing metal device 1 for end portion, the jointing metal devices 1, 2, 3 are united in one body with jointing parts 5, and 3 sets of hexagonal segments Sa are jointed. The jointing parts 5 are removed from the segment up to the final stage of segment jointing and there is no projected part so that the transportation and assembly of the segments can be carried out smoothly.

8. 发明专利

JPH1082288A HEXAGONAL SEGMENT AND JOINING STRUCTURE THEREOF 失效
公开(公告)号：JPH1082288A
公开(公告)日：1998-03-31
申请号：JP23825996
申请日：1996-09-09
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To reinforce a joining force against a pressure directed outward from the center of a tunnel. SOLUTION: A hexagonal segment 1 (B) is provided in such a way that a joining piece 3a is placed at first into contact with a receiving seat 5a of a hexagonal segment 1 (A), thereby butting one slope joining face 1c with one slope joining face 1d of the hexagonal segment 1 (A). Then, a hexagonal segment (C) is inserted into the through hole 5b of the receiving seat 5a of the hexagonal segment 1 (A) from the insertion hole 3b of the joining piece 3a of the hexagonal segment 1 (B). In this inserted state, the fixing seat 4a is placed in contact with the joining piece 3a. Moreover, one side joining face 1a is arranged to butt one side joining face 1b of the hexagonal segment 1 (A) while one slope joining face 1c is provided so that it may butt one slope joining face 1d of the hexagonal segment 1 (B).

9. 发明专利

JPH1080915A SUPPORTING ASSEMBLY OF SHEATH TUBE OF FORM FOR SEGMENT OR THE LIKE 失效
公开(公告)号：JPH1080915A
公开(公告)日：1998-03-31
申请号：JP23706796
申请日：1996-09-06
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： B28B7/00 , B28B7/10 , B28B23/00 , B28B23/22
摘要： PROBLEM TO BE SOLVED: To rapidly and simply mount a sheath tube in a form in a predetermined state by bringing a seating plate of the tube into close contact with a base surface of a support shaft without regulating a length of the tube. SOLUTION: The sheath tube 1 is engaged at both ends with support shafts 21, 22, and installed between side plates 12 and 13 or between the plate 12 and end plates 14, 15. In this mounting state, seating plates 23 of the tubes 1, 2 are brought into close contact with a base surface 21c by means of attracting action of a magnet 26 to hold its state. Accordingly, the tubes 1, 2 are supported in a predetermined state without generating a gap between the plate 23 and the base surface 21c of the shaft 21, and embedded always in a correct state in placed concrete. Since length regulations of the tubes 1, 2 are not required, mounting operations of the tubes 1, 2 in a form can be efficiently conducted.

10. 发明专利

JPH1080912A FORM FOR MANUFACTURING HEXAGONAL SEGMENT 失效
公开(公告)号：JPH1080912A
公开(公告)日：1998-03-31
申请号：JP23707096
申请日：1996-09-06
申请人： OKUMURA CORP , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： ARAKAWA KENJI , SHIRAISHI KOJI , SOMEYA HIROKI , HASHIGUCHI AKIO
IPC分类号： B28B7/10 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To reduce a cost with a simple overall structure by constituting to laterally separably movably provide by a moving means and to improve operability by moving only a pair of frames. SOLUTION: After concrete placed in a concrete placing space K is solidified, clamping of contact flanges 2c, 3c of a clamping bolt 6 is released, and frames 2, 3 are moved laterally separably in the drawing. Thus, side plates 2a, 3a of the frames 2, 3 are separated from side connecting surface of a hexagonal segment molded in the space K, and end plates 2b, 3b are separated from an oblique connecting surface. Separating directions of the frames 2, 3 in this case coincide with an assembling direction of the segment. Further, since the frames 2, 3 are smoothly moved without vibrating under the guidance of a roller 8 to a guide groove 9a of a rail 9, a protruding portion and a recess portion formed on the respective connecting surfaces are not damaged by the separate movement of the frames 2, 3. After the frames 2, 3 are separately moved, the segment is released.

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