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    FRP ROOF STRUCTURAL BODY AND ITS EXECUTION METHOD
    32.
    发明专利
    FRP ROOF STRUCTURAL BODY AND ITS EXECUTION METHOD 失效

    公开(公告)号：JP2000336854A

    公开(公告)日：2000-12-05

    申请号：JP30084899

    申请日：1999-10-22

    Applicant: TORAY INDUSTRIES

    Inventor： ITO TOSHIHIRO ,  NISHIKAWA HIROSHI ,  ARIMA TOSHIHARU ,  SASAGAWA HIROBUMI

    IPC: E04D3/32 ,  E04B7/02 ,  E04D3/00 ,  E04D3/36 ,  E04G23/03

    Abstract: PROBLEM TO BE SOLVED: To provide an FRP roof structural body, which is lightweight and excellent in handrability, requires no large and heavy machine for re-roofing a large roof, hardly burdens to the beams and columns of a building, can be executed very easily, effectively transmits a horizontal force to a lower structure to suppress its deformation small at the time of an earthquake, can sharply prolong its useful life, and can achieve execution in a short construction period, and to provide its execution method. SOLUTION: This FRP roof structural body 1 is suitable for re-roofing at the time of the aseismatic repair of a prestress concrete roof in particular, it is a sandwich structural body having rib members 3 between an FRP skin layer 2a and a skin layer 2b facing each other, the thickness ratio of the opposite FRP skin layers 2a, 2b against the total thickness of the sandwich structural body is in the range of 5:1-25:1, and the unit weight is 150 kg/m2 or below. For the execution method, the existing prestress concrete roof is demolished at lest in one block or two blocks, and the said structural body 1 is re-mounted in sequence.

    FRP STRUCTURE
    33.
    发明专利
    FRP STRUCTURE 失效

    公开(公告)号：JP2000117844A

    公开(公告)日：2000-04-25

    申请号：JP29369698

    申请日：1998-10-15

    Applicant: TORAY INDUSTRIES

    Inventor： ITO TOSHIHIRO

    IPC: B29C70/06 ,  B29K105/08

    Abstract: PROBLEM TO BE SOLVED: To couple to another member while assuring a sufficient strength by integrally forming a coupling flange with an FRP layer containing a long fiber base material for constituting an FRP structure body. SOLUTION: An FRP structure body 2 is constituted of an FRP plate of a veneer constitution having at least one layer of long fiber base material 4. A flange 3 is integrally formed with an end of the body 2 while holding substantially the same constitution as that of the body 2, i.e., a constitution of the plate having at least one layer of the material 4. Since the FRP structure itself has the flange 3 in this manner, the FRP structure can be coupled to another member by using the flange 3. Since the flange 3 is integrally formed with the FRP layer containing the material 4, the flange 3 itself can assure a sufficiently high strength, and can ensure a high coupling strength to the body 2.

    PANEL
    34.
    发明专利
    PANEL 失效

    公开(公告)号：JPH1178994A

    公开(公告)日：1999-03-23

    申请号：JP24076797

    申请日：1997-09-05

    Applicant: TORAY INDUSTRIES

    Inventor： OCHI HIROSHI ,  ITO TOSHIHIRO ,  KIMOTO YUKITANE

    IPC: B62D33/04

    Abstract: PROBLEM TO BE SOLVED: To provide a panel provided with light-weight, high rigidity, and weather-durability, and capable of suspending an article, particularly a panel for truck cargo chamber floor by forming a projected part having a mounting strength enough to suspend it on the surface of an FRP plate with a core material having a specific tensile strength or modulus of elasticity. SOLUTION: A material having a tensile strength of 5 kg/mm or higher or an elasticity modulus of 250 kgf/mm or higher is used as a core material 1, and metals and ceramics are cited. For metals, a steel of which adhesiveness with FRP is excellent is used. On the other hand, FRP plates 3a and 3b are formed in a platy shape made of fiber-reinforced resin and each FRP member for truck cargo compartment is formed using a hand-lay up method. Also a projected part 2 of 15 to 150 mm in height and 2 to 20 mm in thickness having a mounting strength enough to suspend it on the surface of the FRP plate 3a by the core material 1 is formed on each panel. In addition, the core material 1 is favorable if a bearing strength is 20 kgf/mm or higher in the range of pin diameter of 4 to 16 mm.

    PRODUCTION OF BENT PIPE
    35.
    发明专利
    PRODUCTION OF BENT PIPE 失效

    公开(公告)号：JPH06286005A

    公开(公告)日：1994-10-11

    申请号：JP7378093

    申请日：1993-03-31

    Applicant: TORAY INDUSTRIES

    Inventor： TAINAKA SEIICHI ,  NISHI YASUHIRO ,  ITO TOSHIHIRO

    IPC: A63B49/10 ,  B29C70/06 ,  B29C70/16 ,  B29K105/08 ,  B29L23/00 ,  B29L31/52 ,  B32B37/00 ,  B29C67/14 ,  B32B1/10

    Abstract: PURPOSE:To produce a bent pipe such as a racket frame excellent not only in surface grade but also in physical properties. CONSTITUTION:A mandrel formed by bundling many fine CFRP wire rads is covered with a tube and a carbon fiber hellcally wound layer is formed to the periphery of the tube using a filament winding method and, subsequently, the mandrel is pulled out to form a preform. This preform is received in a lower mold having a cavity formed into a desired bent pipe shape to close the lower mold by an upper mold and a resin is injected in the cavity while pressure is applied to the interior of the tube and the cavity is reduced in pressure to be infiltrated in the helically wound layer to produce a bent pipe such as a racket frame.

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