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11. 发明专利

JP2000027082A WIRE AND TWISTED WIRE MADE OF FIBER-REINFORCED PLASTIC AND PRODUCTION THEREOF 失效
公开(公告)号：JP2000027082A
公开(公告)日：2000-01-25
申请号：JP19200898
申请日：1998-07-07
申请人： NIPPON STEEL CORP
发明人： SHIMADA MASAKI , TAKEDA TOSHIKAZU , MAIKUMA HIRONORI
IPC分类号： D07B1/02 , B29C70/10 , B29K105/08 , B32B1/08 , C08J5/04 , D07B1/16
摘要： PROBLEM TO BE SOLVED: To obtain a wire and a twisted wire made from a fiber-reinforced plastic, excellent in environmental resistance and in a long term durability in a practical use state and to provide a method for producing them. SOLUTION: This wire made from a fiber-reinforced plastic, is characterized by a 3-layered structure obtained by forming a core material of a wire made from an uncured fiber-reinforced plastic by bundling one or plural fiber- reinforced strand impregnated with a matrix resin, arranging a coated fiber having moisture absorption and galvanic corrosion-preventing effects as a first outer layer surrounding the same and a coated fiber having ultraviolet rays and abrasion loss-preventing effects as a second outer layer, and a twisted wire is obtained by twisting plural above wires, and a method for producing them. It is possible to provide a structural wire, etc., excellent in environmental resistance and long term durability in a practical use state by using the wires made from the fiber-reinforced plastic.

12. 发明专利

JPH09268874A REINFORCING MEMBER AND COUPLING FORMED BY CONTINUOUS FIBER REINFORCED SHAFT BODY, CONNECTING METHOD THEREFOR AND CONCRETE WALL BODY 失效
公开(公告)号：JPH09268874A
公开(公告)日：1997-10-14
申请号：JP9589296
申请日：1996-03-27
申请人： NIPPON STEEL CORP
发明人： NAKA RIYOUICHI , YOSHIZUMI TOSHIHIKO , HAYASHIDA MICHIYA , MAIKUMA HIRONORI
IPC分类号： E21D5/10 , E21D5/11 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To enable sure connection without skill by vertically connecting fiber reinforced resin-made continuous fiber reinforced shafts of a specified form to each other, disposing the same at designated spaces like a ring, and engaging the upper and lower taper surfaces to be unseparably contained. SOLUTION: A continuous fiber reinforced shaft 10 made by carbon fiber reinforced resin comprises a circular-arc cross section widening part 14 widened at a designated angle of inclination upward and a circular-arc cross section widening part 14a widened at a designated angle of inclination similarly downward which are provided at the upper and lower ends of the middle part 13. Plural continuous fiber reinforced shafts 10 are disposed at designated spaces like a ring, and both side taper surfaces 15, 15 of the respective circular arc cross section widening parts 14, 14a positioned in the upper and lower sides are engaged with each other to connect the shafts to each other. Further inside the upper and lower circular-arc cross section widening parts 14, 14a, where the taper surfaces 15 of the continuous fiber reinforced shafts 10 are engaged with each other, inner cylinders 16 having the substantially same diameter as the above parts 14, 14a are disposed, and an outer cylinder 17 is fitted to the outside to contain the respective circular-arc cross section widening parts 14, 14a.

13. 发明专利

JPH06300018A CROSS-TYPE JOINT MEMBER FOR FIBER REINFORCED RESIN PIPE BODY 失效
公开(公告)号：JPH06300018A
公开(公告)日：1994-10-25
申请号：JP10491093
申请日：1993-04-08
申请人： NIPPON STEEL CORP , NIPPON SHARYO SEIZO KK
发明人： UCHIDA HIROYUKI , ASO TOSHIRO , TAKEDA TOSHIKAZU , MAIKUMA HIRONORI , KANEYA DAIZO
IPC分类号： B61F5/52 , F16B7/20
摘要： PURPOSE:To lighten a structure by manufacturing a structure of a transport machinery or the like with fiber reinforced resin pipe bodies and assembling it with cross-type joint members. CONSTITUTION:On pipe boy has a jointing surface with nearly equal curvature to that of the outer surface of the pipe body for the other corresponding jointed pipe body and is disposed to be integrated with the jointed pipe body as arrangement to provide a cross-type joint member 3 having one pipe body provided with a through hole. Thus, one pipe body can be jointed with the other pipe body crosswise at a arbitrary position with light weight and low cost without causing the reduction of the rigidity and atrength of the pipe body.

14. 发明专利

JPH0321434A MANUFACTURE OF FIBER REINFORCED PLASTIC PIPE 失效
公开(公告)号：JPH0321434A
公开(公告)日：1991-01-30
申请号：JP15617989
申请日：1989-06-19
申请人： NIPPON STEEL CORP
发明人： TSUJI NOBUYUKI , MAIKUMA HIRONORI , KIMURA HIROMI , KUBOMURA KENJI
IPC分类号： A63B53/10 , A63B102/32 , B29C70/06 , B29K105/06 , B29L31/52 , B60K17/22 , B62K19/16
摘要： PURPOSE:To facilitate the manufacturing of a pipe having arbitrary shape by a method wherein a bag, in which a core is placed, is prepared so as to cover the outside the bag by resin-impregnated fiber stock and, after that, the whole assembly is transferred in a female die for forming under the state being brought into close contact with the female die internally by applying internal pressure inside the bag and finally the core is removed from the female die. CONSTITUTION:A core 1, the dimensions of which are smaller than the inner diameter of a final molding, is put in a bag 2 made of film-like stock and a fluid inflowing tube 2 is inserted from the mouth of the bag. Next, resin-impregnated fiber stock 3 is wound round the outside of the bag 2, in which the core is placed for hardening and forming. The whole assembly is transferred in a female die 4 and, after that, the female mold is clamped. Next hardening is performed under the the state that the bag 2 is inflated by applying fluid pressure through the fluid inflowing tube 5 so as to bring the resin-impregnated fiber stock 3 into close contact with the inside of the female die 4. After that, the fluid pressure is released and the film is cut open in order to take the core out of the bag. Thus a pipe having arbitrary shape is easily obtained. And the wall thickness of the pipe is controlled so as to have the desired one. A product having high dimensional accuracy can be manufactured at low cost.

15. 发明专利

JPH10278120A MANUFACTURE OF FIBER REINFORCED RESIN COMPOSITE MATERIAL SPIRAL BAR, AND DEVICE 失效
公开(公告)号：JPH10278120A
公开(公告)日：1998-10-20
申请号：JP9255597
申请日：1997-04-10
申请人： NIPPON STEEL CORP
发明人： YAMAUCHI OSAMU , MAIKUMA HIRONORI , OGATA KOJI , TAKAHASHI SHIGEKI
IPC分类号： B29C70/16 , B29C70/06 , B29D99/00 , B29K101/10 , B29K105/08 , B29L31/06 , B29D31/00
摘要： PROBLEM TO BE SOLVED: To enhance the strength of a fiber formed body and improve the productivity of a composite material spiral bar by a method wherein unraveled long fiber group is turned into a long fiber formed body by being passed through a pre-collecting die having a collecting bore, the ratio of which to the root diameter of a spiral fiber formed body after the peripheral winding thread is wound peripherally is specified. SOLUTION: In an unraveling device 1, a large number of long fibers 6 impregnated with a thermosetting resin are unraveled and turned into a bundle so as to pre-collect a long fiber 6 group at the collecting hole of a collecting orifice 6a in a pre-collecting die 2 in order to form a long fiber formed body 6a. Next, at a peripherally winding device 3, a peripheral winding thread 7 made of long fibers impregnated with the thermosetting resin is wound about the outer periphery of the long fiber formed body 6, resulting in obtaining a spiral fiber formed body 8 consisting of the long fiber formed body 6a and the peripheral winding thread 7. The spiral fiber formed body 8 is passed through the center through hole of a rotary platen 10 provided in the peripherally winding device 3 to a heating device 4. In addition, the collecting bore (a) of the pre-collecting die 2 is set to be 1.1-2.0 times as much as the rool diameter of the spiral fiber formed body 8, which has been collected by peripherally winding the peripheral winding thread 7.

16. 发明专利

JPH09310577A CONTINUOUS FIBER REINFORCING MATERIAL FOR CONCRETE WALL TO BE CUT AND REINFORCING STRUCTURE AND REINFORCING METHOD OF CONCRETE WALL BY USING THE MATERIAL 失效
公开(公告)号：JPH09310577A
公开(公告)日：1997-12-02
申请号：JP14850796
申请日：1996-05-21
申请人： NIPPON STEEL CORP
发明人： NAKA RIYOUICHI , YOSHIZUMI TOSHIHIKO , HAYASHIDA MICHIYA , MAIKUMA HIRONORI
IPC分类号： E21D5/11 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To constitute a wall surface capable of being cut by a method wherein hollow cylindrical bodies are fitted and superposed, and the cylindrical bodies are cut vertically and connected back to back and continuous reinforcement bodies are configured in sheathing concrete walls in shield-machine departure and arrival sections. SOLUTION: The tapered sections 10 of hollow cylindrical bodies 9 made of a continuous fiber-reinforced resin are fitted and superposed to shaft components 7 arranged to the lower section of a cutting range 12 and made of steel through bearing members 6 made of steel to configure a hollow continuous reinforcement body 11, the internal spaces of the hollow continuous reinforcement body 11 are filled with concrete, etc., and the hollow continuous reinforcement body 11 is connected to shaft components 7a made of steel in upper sections through engaging members 6a made of steel. The hollow cylindrical members are cut vertically, and joined back to back by bolts and nuts made of the fiber-reinforced resin through splice plates, the longitudinal direction is also united similarly and long-sized reinforcing bodies are formed, and the long-sized reinforcing bodies are connected to upper and lower shaft steel members 7, 7 made of steel. Accordingly, the weak point in strength of the joining sections of the web and flange of an H-shaped sectional reinforcing material made of the continuous fiber-reinforced resin is avoided, and the reinforcing bodies capable of being cut by an excavator can be constituted.

17. 发明专利

JPH06257607A CONNECTION METHOD FOR FIBER REINFORCED RESIN PIPE 失效
公开(公告)号：JPH06257607A
公开(公告)日：1994-09-16
申请号：JP4263193
申请日：1993-03-03
申请人： NIPPON STEEL CORP , NIPPON SHARYO SEIZO KK
发明人： MAIKUMA HIRONORI , KITAGAWA YOICHI , TAKEDA TOSHIKAZU , UCHIDA HIROYUKI , KANEYA DAIZO
IPC分类号： F16B7/00 , F16B11/00
摘要： PURPOSE:To obtain desired rigidity and strength, and enable exchange of a pipe by winding fiber reinforced members around boundary ranges of ends of divided connection metal fittings and fiber reinforced resin pipe, and connecting the connection metal fittings to the pipe with a bolt. CONSTITUTION:Two fiber reinforced resin pipes 11, 12 which are to be connected are mutually T-shaped. The fiber reinforced resin pipe 11 is connected to divided connection metal fittings 21-a, 21-b. Then, the pipe 12 is temporarily fixed to the connection metal fittings. Fiber reinforced resin members 31, 32 are wound around boundary ranges between the ends of the divided metal fittings and the fiber reinforced resin pipe 11, and the resin is hardened. Through holes are formed on specified positions of the fiber reinforced resin pipe temporarily fixed to the connection metal fittings and the connection fittings. The pipe is then detached from the connection fittings, and a member on which a female screw is threaded is fixed to the portion having the hole, from inside of the pipe. After hardening the adhesive, the pipe is inserted into the connection metal fittings again. The pipe and the connection metal fittings are fastened by means of a bolt 41 through a washer 42.

18. 发明专利

JPH06254968A JUNCTION OF TUBULAR OBJECT OF FIBER-REINFORCED RESIN 失效
公开(公告)号：JPH06254968A
公开(公告)日：1994-09-13
申请号：JP4263093
申请日：1993-03-03
申请人： NIPPON STEEL CORP , NIPPON SHARYO SEIZO KK
发明人： MAIKUMA HIRONORI , KITAGAWA YOICHI , TAKEDA TOSHIKAZU , ASO TOSHIRO , KANEYA DAIZO
IPC分类号： B29C65/52 , B29K105/06 , B29L23/00 , F16L13/10 , F16L21/00 , F16L47/02
摘要： PURPOSE:To cross-junction a tubular object of fiber-reinforced resin under various kinds of stress by adjusting a clearance between the outer surface of the tubular object and the inner surface of a junction metal, applying an adhesive to cure it under pressure and curing the boundary between the end of the junction metal and the tubular object by reinforcement. CONSTITUTION:The curvature of the outer surface of fiber-reinforced resin tubular objects 11, 12 and the inner surface of junction metals 21-a, 21-b as an adhesion surface is adjusted so that the clearance between these surfaces is 1mm max. Next, an adhesive is applied to an area between the tubular objects 11, 12 as objects to be junctioned and the junction metals 21-a, 21-b which are splittable as a junction part. Further, the adhesive is allowed to cure with a concurrent action to press the adhesion surface to make both object to be junctioned and the junction metal one piece. After that, the boundary between the end of the junction metal and the tubular object is cured by reinforcement using fiber-reinforced resin materials 33, 34, 35. Consequently, it is possible to reduce a stress level generated in the adhesion layer.

19. 发明专利

JPH0321581A MANUFACTURE OF MEMBER IN THREE-DIMENSIONAL FORM 失效
公开(公告)号：JPH0321581A
公开(公告)日：1991-01-30
申请号：JP15661689
申请日：1989-06-19
申请人： NIPPON STEEL CORP
发明人： MAIKUMA HIRONORI , TSUJI NOBUYUKI , KIMURA HIROMI , KUBOMURA KENJI
IPC分类号： B62K19/16 , B29C69/00 , B29C70/06 , B29K105/06 , B62K19/18
摘要： PURPOSE:To carry out manufacture easily and quickly by filling the inside of a female die with a foaming substance while a soft sheet is interposed, foaming it and taking out of the female die, then putting a foaming sheet, etc., on the outside of the mentioned foamed substance, and accommodating this substance again in the female die followed by a thermal hardening process. CONSTITUTION:In manufacturing, first bi-sected dies 31, 31' are provided whose inside assumes the shape of the intended product, and soft sheets 32, 32' are affixed to the inner surfaces. The inside of thse dies 31, 31' is filled with a foaming substance, which is allowed to foam and harden. Then the substance is taken out of the dies, and the soft sheets 32, 32' are exfoliated from the inner surfaces. Thus a molding is obtained, in which the foaming material 2 is in tight contact with the periphery of a skeleton 1. From above the skelet 1 and foaming substance 2, a foamed sheet and continuous fiber impregnated with resin are placed, and the dies are tightened again, and the whole is heated to accomplish a three-dimensionally shaped final product 33.

20. 发明专利

JPH0321436A MANUFACTURE OF FIBER REINFORCED RESIN SOLID STRUCTURAL MEMBER 失效
公开(公告)号：JPH0321436A
公开(公告)日：1991-01-30
申请号：JP15618089
申请日：1989-06-19
申请人： NIPPON STEEL CORP
发明人： KIMURA HIROMI , TSUJI NOBUYUKI , MAIKUMA HIRONORI , KUBOMURA KENJI
IPC分类号： A63B49/10 , A63B53/04 , A63B102/02 , A63B102/32 , B29C70/06 , B29C70/68 , B29K105/06 , B29K105/20 , B29L31/06 , B29L31/52
摘要： PURPOSE:To enhance the high dimensional accuracy by a method wherein expandable resin sheet is wound round the periphery of a core and further resin- impregnated fiber is piled outside onto the sheet and the resultant assembly is charged in a female mold and heated and hardened. CONSTITUTION:Expandable resin sheet 2 is wound on a core 1 and further resin-impregnated fiber 3 is laminated onto the sheet. After that, the resultant assembly is charged in a female mold 4 and heated. By heating, the expandable resin sheet 2 expands and set, resulting in pushing the resin-impregnated fiber 3 against the inside of the female mold 4 so as to produce three dimensional structural member. Thus, member favorable in dimensional accuracy and external appearance can be manufactured with a simple manufacturing process.

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