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1. 发明专利

JPH07289947A COMPOSITE ROTATOR 失效
公开(公告)号：JPH07289947A
公开(公告)日：1995-11-07
申请号：JP8894794
申请日：1994-04-26
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO , ISHIKAWAJIMA HARIMA HEAVY IND , MITSUBISHI KAKOKI KK
发明人： MAIKUMA HIRONORI , KUBOMURA KENJI , YOSHIDA OSAMU , NAKAJIMA TOSHIYUKI , OKAMURA JIYUNSUKE , MORIGUCHI MASAHIRO , TANAKA YASUHISA
IPC分类号： B04B5/02 , B04B7/08
摘要： PURPOSE:To provide a composite rotator composed of fiber reinforced resin and metal which can be used for a centrifugal separator for treating a large amount of liquid in the atmosphere and under a high centrifugal force. CONSTITUTION:A double cylindrical structure body is formed by bonding a fiber reinforced resin cylinder 2 comprising reinforced fiber oriented in the peripheral direction in the wall thickness of 0.1 mm or more and of 50% or less of the total wall thickness with the outer periphery of the metal cylinder 1 in a cylindrical outermost peripheral section 5 of a fiber reinforced resin cylinder 2. The number of revolutions of two times as much and the centrifugal force of four times as much can be provided by the arrangement compared with a conventional metal revolving body. Further, a container-shaped high speed composite revolving body can be manufactured by using a closed-end metal cylinder, and as a result, a centrifugal separator provided with high separation performance which can separate a large amount of liquid can be manufactured.

2. 发明专利

JPH0626095A FIBER REINFORCED RESIN DIAGONAL MEMBER 失效
公开(公告)号：JPH0626095A
公开(公告)日：1994-02-01
申请号：JP20422592
申请日：1992-07-09
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： MAIKUMA HIRONORI , TSUJI NOBUYUKI , KUBOMURA KENJI
IPC分类号： E04B1/18 , E04C5/07
摘要： PURPOSE:To make efficient use of tensile strength up to its maximum in frame design by making the allowable deformation amount of a diagonal member under the compressive load larger than the allowable deformation amount of the diagonal member under the tensile load. CONSTITUTION:The conditions of a fiber reinforced resin diagonal member are expressed in the following. CXPt=Npi EI/L ... expressing I, I=WT /12... expression II, and 0

3. 发明专利

JPH10183531A CONNECTING MEMBER FOR BRIDGE FALL PREVENTING DEVICE, ITS ANCHORING METHOD, AND BRIDGE FALL PREVENTING DEVICE UTILIZING IT 失效
公开(公告)号：JPH10183531A
公开(公告)日：1998-07-14
申请号：JP31158997
申请日：1997-10-29
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO , SUZUKI METAL INDUSTRY CO LTD , EIKO SANGYO KK
发明人： MAIKUMA HIRONORI , TAKEDA TOSHIKAZU , WAKASHITA FUJINORI , MIZUMA SHOHEI , SATO YASUHEI , HAGIWARA MASAAKI , TAKAHASHI SHIGEO , SUGA SHOZO
IPC分类号： E01D19/04 , E01D2/00 , E01D101/00 , E01D101/40
摘要： PROBLEM TO BE SOLVED: To provide a connecting member realizing design strength without being rusted by using strand-like FRP twisted with multiple fiber-reinforced plastic single wires impregnated with a thermosetting resin in continued fibers having specific fiber tensile strength or above for the connecting member of a bridge fall preventing device connecting two sets of girders. SOLUTION: The end sections of two sets of girders 11, 12 are supported on a upper part of a bridge pier 22 via an elastic support device 13, and brackets 20, 20 provided on girder webs 21 are connected by a strand-like FRP reinforcing member. A single wire having the reinforcing fiber tensile strength of 3920MPa or above can be used to constitute the FRP reinforcing material, a thermosetting resin which is a base material is a material extremely excellent in durability, and the FRP member itself is not corroded. Each fiber-reinforced plastic single wire constituting the FRP member is covered with organic fibers, and a double corrosion-proof effect can be expected. When the FRP reinforcing member is used for a connecting member 1a, it exerts design strength without being rusted.

4. 发明专利

JPH08303693A FIBER REINFORCED RESIN TANK 失效
公开(公告)号：JPH08303693A
公开(公告)日：1996-11-22
申请号：JP11207395
申请日：1995-05-10
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： MAIKUMA HIRONORI , KUBOMURA KENJI , OTA AKIRA , ANDO HIDEKI
IPC分类号： F17C1/16
摘要： PURPOSE: To reliably prevent slip between a mouthpiece tool and a resin-made liner when a resin layer made of FRP is subjected filament-winding mold on the outer surface of the resin-made liner, by providing projecting parts on one part on the outer side surface of the mouthpiece tool to be brought in contact with the resin-made liner and locking it on the resin-made liner. CONSTITUTION: A fiber reinforced resin-made tank Te is provided with a tank main body 1 formed by laminating a resin layer 3 made of fiber reinforced resin on the outer surface of a resin-made liner 2, a flange part 7 to be locked on the inner surface side of the opening edge of an attaching hole 4, and an exposing part 8 exposing outside the tank main body 1 are provided on the attaching hole 4 provided on the tank main body 1, and a metallic mouthpiece tool 5 on which an internal thread part 9 is formed is attached. In this mouthpiece tool 5, the upper part of a perforating part 6 to be inserted through the attaching hole 4 is formed on a taper surface 10 opening outward from the tank, a plurality of linear projecting parts 12b are formed on the outer surface of the mouthpiece 5, and the projecting parts 12b are reliably locked on the opening edge of the attaching hole 4.

5. 发明专利

JPH05193047A PREVENTIVE METHOD OF ELECTROLYTIC CORROSION OF CARBON FIBER-REINFORCED COMPOSITE MATERIAL 失效
公开(公告)号：JPH05193047A
公开(公告)日：1993-08-03
申请号：JP2753992
申请日：1992-01-20
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： MAIKUMA HIRONORI , KUBOMURA KENJI
IPC分类号： B32B5/02 , B32B5/28 , B32B15/08
摘要： PURPOSE:To prevent the electrolytic corrosion of a metallic part and prolong a useful life by forming a plastic layer using insulating fibers as a reinforcing material between a carbon fiber-reinforced plastic member and the member made of a metal. CONSTITUTION:The subject composite material is composed of a medium-sized pipe 15 as a carbon fiber-reinforced plastic member and a metallic journal 14 as a metallic member. A plastic layer 16 employing insulating fibers as a reinforcing material is formed between both members. Consequently, the flow of currents is obstructed, thus preventing the generation of electrolytic corrosion. Glass fiber or high-molecular fibers such as polyethylene or the like can be used as insulating fibers and a thermo-setting resin such as unsaturated polyester, epoxy, etc., is employed as plastics mixed into the fibers at that time.

6. 发明专利

JPH0716317A FACE PLATE FOR HEAD OF GOLF CLUB AND ITS MANUFACTURE 失效
公开(公告)号：JPH0716317A
公开(公告)日：1995-01-20
申请号：JP16124793
申请日：1993-06-30
申请人： NIPPON STEEL CHEMICAL CO , NIPPON STEEL CORP
发明人： KIMURA HIROMI , MAIKUMA HIRONORI , YAMASHITA HIROAKI , KUBOMURA KENJI
IPC分类号： A63B53/04
摘要： PURPOSE:To provide a face plate for a head of a golf club made of a fiber- reinforced resin beautiful and adapted to prevent a loss and wear of a groove part and a method for manufacturing the face plate by a relatively low molding pressure. CONSTITUTION:This face plate for a head of a golf club is made of a fabric material with one or several layers of reinforcing fibers near the surface wherein a part or the whole of the fabric material is given a cut along a groove on the surface of the face. A plurality of sheets of prepreg are laminated so that one or several sheets of textile-shaped prepreg given a cut to match the shape of the groove part of the face plate are positioned near the surface of the face plate and arranged so that the cut in a molding die having a protrusion corresponding to the shape of the groove part corresponds to a protrusion. Then, a thermosetting resin is hardened by heating under a pressure.

7. 发明专利

JPH0674369A PARALLEL JOINT MEMBER AND MANUFACTURE THEREOF FOR FIBER REINFORCED RESIN-MADE PIPE 失效
公开(公告)号：JPH0674369A
公开(公告)日：1994-03-15
申请号：JP22716692
申请日：1992-08-26
申请人： NIPPON STEEL CORP
发明人： MAIKUMA HIRONORI , KITAGAWA YOICHI , SHIMADA MASAKI , IWAMORI HIROMINE
IPC分类号： F16L3/00 , F16L3/22 , F16L3/223
摘要： PURPOSE:To provide a parallel joint member light in weight with high connection strength by arranging a plurality of connecting surfaces, having curvature equal to an external diameter of a fiber reinforced resin-made pipe, respectively toward the outside, and integrally forming all the connecting surfaces by fiber reinforced resin through a rib of providing notches in both the end parts. CONSTITUTION:In a rolling stock use bogie frame or the like in which two fiber reinforced resin-made pipes 7, 8 of constituting a side beam, lateral beam, etc., are connected by a parallel joint member 9 to each other by maintaining a parallel condition, the parallel joint member 9 is constituted by arranging two connecting surfaces 1, having curvature equal to external diameters of the pipes 7, 8, respectively toward the outside, and by integrally molding both the connecting surfaces 1, 1 by fiber reinforced resin through a rib 2 of providing notches in both the end parts. The pipes 7, 8 are connected to each connecting surface 1 of this parallel joint member 9 through a bonding agent, to also laminate fiber reinforced resin materials 21 to 24 with the pipes 7, 8 in the end part of the rib 2, and these members are hardened in a drying machine, to obtain high connection strength between the joint member 9 and the pipes 7, 8.

8. 发明专利

JPH09256780A SHIELD MACHINE STARTING AND ARRIVING WALL CONCRETE UNIT AND JOINT CONSTRUCTION THEREOF 失效
公开(公告)号：JPH09256780A
公开(公告)日：1997-09-30
申请号：JP9465696
申请日：1996-03-26
申请人： NIPPON STEEL CORP
发明人： NAKA RIYOUICHI , YOSHIZUMI TOSHIHIKO , HAYASHIDA MICHIYA , MAIKUMA HIRONORI
IPC分类号： E02D5/10 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To make it possible to simply and quickly construct a shield machine starting and arriving wall capable of being easily cut with a cutter bit by connecting up and down wall pieces with joint levers in a tunnel excavation shaft. SOLUTION: Wall concrete units 5 are equipped with a pair of inserting arm pieces 9 and 10 having opening sections 2 and 3 for inserting joint levers 6 on both up and down of a short square columnar main body and fitting recess sections 11. The units 5 are connected to steel shaft constitutive members 13 with joints positioned in both up and down of a shaft with joint levers 17, a plurality of units 5 are connected to each other with the joint levers 6 among them to complete a row of erections, and the stage of work is subsequently repeated in the horizontal direction to construct a wall having the required width. Hoop-like continuous fiber reinforcing materials 4 are embedded in the units 5 over the opening sections 2 and 3, and each of the joint levers 6 is made of fiber-reinforced resin or a concrete member reinforced with the fiber reinforced resin. Accordingly, the wall capable of being cut can be simply and quickly constructed.

9. 发明专利

JPH0674368A PARALLEL JOINT MEMBER AND MANUFACTURE THEREOF FOR FIBER REINFORCED RESIN-MADE PIPE 失效
公开(公告)号：JPH0674368A
公开(公告)日：1994-03-15
申请号：JP22716592
申请日：1992-08-26
申请人： NIPPON STEEL CORP
发明人： MAIKUMA HIRONORI , KITAGAWA YOICHI , SHIMADA MASAKI , IDA NORIAKI
IPC分类号： F16L3/00 , F16L3/22 , F16L3/223
摘要： PURPOSE:To provide a parallel joint member light in weight with high connecting strength by arranging a plurality of connecting surfaces, having curvature equal to an external diameter of a fiber reinforced resin-made pipe, respectively toward the outside, and integrally forming all the connecting surfaces by fiber reinforced resin through a rib. CONSTITUTION:In a rolling stock use bogie frame or the like in which two fiber reinforced resin-made pipes 7, 8 of constituting a side beam, lateral beam, etc., are connected by a parallel joint member 9 to each other by maintaining a parallel condition, the parallel joint member 9 is constituted by arranging two connecting surfaces 1, having curvature equal to an external diameter of the pipes 7, 8, respectively toward the outside, and by integrally molding both the connecting surfaces 1, 1 by fiber reinforced resin through a rib 2. After connecting the pipes 7, 8 to each connecting surface 1 of this parallel joint member 9 through a liquid-state bonding agent, a jig 10 is attached, and after applying a contact pressure to the connecting surface to place the three members in a fixed condition, the members are heated by a drying machine. In this way, the pipes 7, 8 are integrally formed through the parallel joint member 9, thereafter to remove the jig 10.

10. 发明专利

JPH0321580A MANUFACTURE OF MOTORCYCLE FRAME OF FRP 失效
公开(公告)号：JPH0321580A
公开(公告)日：1991-01-30
申请号：JP15661789
申请日：1989-06-19
申请人： NIPPON STEEL CORP
发明人： TAKEDA TOSHIKAZU , KIMURA HIROMI , MAIKUMA HIRONORI , TSUJI NOBUYUKI , KUBOMURA KENJI
IPC分类号： B62K19/16 , B29C70/06 , B29L31/30
摘要： PURPOSE:To manufacture frames in any desired form simply and inexpensively by forming pipe components from continuous fiber impregnated with resin, arranging them in the specified frame configuration, forming then a lug part at each component, and at the same time carrying out assembly of the whole frame. CONSTITUTION:In manufacturing frames, such components as an upper pipe 1, lower pipe 2, vertical pipe 3, rear fork 4, and chain stay 5 are first formed from continuous fiber impregnated with resin. Then a rear pawl 6, head pipe 7, seat pipe 8, hanger lug 9 are fixed together with the abovementioned components 1-5 by the use of a jig 10 in conformity to the specified dimensions. Lug parts are formed at the mating ends of these components 1-9, and thus a frame is accomplished. That is, the gap between the mating ends of for ex. the pipes 1, 2, 7 is filled with a foaming substance, etc., 13, and a prepreg. 14 layer is put on it, pressurized, heated, and hardened, and thus the specified lug part is formed.

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