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    TRANSMISSION SHAFT FOR BUSH CUTTER, ITS PRODUCTION AND OPERATION STICK FOR BUSH CUTTER
    21.
    发明专利
    TRANSMISSION SHAFT FOR BUSH CUTTER, ITS PRODUCTION AND OPERATION STICK FOR BUSH CUTTER 失效

    公开(公告)号：JPH08205649A

    公开(公告)日：1996-08-13

    申请号：JP1443895

    申请日：1995-01-31

    Applicant: TORAY INDUSTRIES

    Inventor： NISHI YASUHIRO ,  YAMAGIWA MASAYOSHI ,  NAKAMURA MINORU

    IPC: A01D34/68 ,  B29C70/16 ,  B29C70/52 ,  B29K19/00 ,  B29K105/12

    Abstract: PURPOSE: To provide the subject transmission shaft made of fiber-reinforced resin improved in joint durability, and to provide the subject operation stick consisting of a combination of this transmission shaft with a main pipe. CONSTITUTION: This transmission shaft for bush cutters has such a constitution that the cross-sectional shape of the inner or outer surface at its end to be jointed of a fiber-reinforced resin tubular body 50 constituting this shaft is made polygonal. The transmission shaft is produced by laminating the outer periphery of a mandrel made of soluble linear material with reinforcing fibers and a resin followed by conducting a pultrusion using a mold and then dissolving and removing the mandrel. The cross-sectional shape of the mandrel or the mold to be used is polygonal. The objective operation stick for bush cutters is a combination of this transmission shaft with a main pipe, and the main pipe is made up of a fiber-reinforced resin inner layer formed of carbon fibers crossedly arranged in a helical way, a fiber-reinforced resin intermediate layer formed of carbon fibers arranged axially, and a fiber-reinforced resin outer layer formed of carbon fifers crossedly arranged in a helical way.

    RAILWAY VEHICLE BODY STRUCTURE
    22.
    发明专利
    RAILWAY VEHICLE BODY STRUCTURE 失效

    公开(公告)号：JPH06329019A

    公开(公告)日：1994-11-29

    申请号：JP11837593

    申请日：1993-05-20

    Applicant: RAILWAY TECHNICAL RES INST ,  TORAY INDUSTRIES ,  NIPPON SHARYO SEIZO KK

    Inventor： SUZUKI YASUFUMI ,  OCHI HIROSHI ,  YAMAGIWA MASAYOSHI ,  TANEDA KATSUJI

    IPC: B60R19/18 ,  B61D17/04 ,  B61F19/04

    Abstract: PURPOSE:To secure high safety of the passengers and the crew by providing energy absorbing members made of FRP at the tip part. CONSTITUTION:The carbon fiber is reinforced, nylon is used for the matrix, and a cylinder where the angle of orientation of the fiber is + or -15 deg. (relative to the axis of the cylinder) and the sheet-shaped, fiber-reinforced and thermo-setting resin is wound around the mandrel is formed in an autoclave. Energy- absorbing members 11 made of the cylindrical composite material are obtained through machining. The energy-absorbing members 11 are piled through parallel partitioning plates 12, and are provided in a bonnet of the tip part of a railway vehicle body structure 13 to obtain a vehicle body structure to absorb the energy.

    CAR FOR ELEVATOR
    23.
    发明专利
    CAR FOR ELEVATOR 失效

    公开(公告)号：JPH11343083A

    公开(公告)日：1999-12-14

    申请号：JP8819599

    申请日：1999-03-30

    Applicant: TORAY INDUSTRIES

    Inventor： KAWANOMOTO YASUYUKI ,  NAKAMURA MINORU ,  YAMAGIWA MASAYOSHI

    IPC: B66B11/02

    Abstract: PROBLEM TO BE SOLVED: To reduce the motive power by forming a sandwich panel or a hollow section panel as a structural member of a cage. SOLUTION: A cage 1 of an elevator is formed by five faces, that is, a floor plate 3, a ceiling plate 4, the side plates 5 and a back plate 6, and an openable and closable car door 7 is installed at a front side. The floor plate 3, the ceiling plate 4 and the side plates 5 are formed by a sandwich panel comprising a core material and a skin material made of a plastic sheet, or a hollow section panel using the plastic sheet as the skin material and the stringer, and a part corresponding to a car frame 2 is provided with a reinforcement spur made of these panels to improve the total rigidity and strength of the cage. Accordingly high rigidity and strength can be obtained even when a thickness of the panel is thin, and the weight can be considerably reduced by the effect of the low specific gravity of the material. Whereby the motive power can be reduced, and the car can be easily applied to a home elevator operated by a domestic power source.

    PRESSURE VESSEL AND ITS MANUFACTURE
    24.
    发明专利
    PRESSURE VESSEL AND ITS MANUFACTURE 失效

    公开(公告)号：JPH09257193A

    公开(公告)日：1997-09-30

    申请号：JP6603196

    申请日：1996-03-22

    Applicant: TORAY INDUSTRIES

    Inventor： IIDA YASUSHI ,  YAMAGIWA MASAYOSHI ,  KITANO AKIHIKO

    IPC: F17C1/04

    Abstract: PROBLEM TO BE SOLVED: To reduce the wight of a pressure vessel and enhance the pressure proofing preferemance by constituting the pressure vessel out of an inner shell having a gas barrier forming property and an outer shell made of an FRP containing reinforcing fibers and resin together with specifying the tensile modules of elasticity, tensile repute strain, and the angle of the reinforcing fiber layer of the outer shell. SOLUTION: A pressure vessel 1 is provided with an inner shell 2 having a gas barrier forming property and a pressure-tight outer shell covering the inner shell 2. The inner shell 12 is made up of as thin light alloy like an aluminum alloy and a resin like polyethylene resin, and the resin product is produced through blow molding. The outer shell 3 is made of an FRP containing reinforcing fibers and the resin, and its properties are as follows: the tensile modules of elasticity is more than 35G Pa, and the tensile rupture strain is more than 1.5%, and it contains reinforcing fiber layers which are arranged at angles of (±5 deg. to ±50 deg.) and (±75 deg. to ±105 deg.), respectively with respect to the axis of the inner shell 2. The outer shell forms for improvement a wound later consisting of reinforcing threads containing resin around the inner shell 2 through the filament winding method. In this case, carbon fiber threads are used for the reinforcing thread, while thermoplastic resin like epoxy resin is used for the resin. With this, the weight of the pressure vessel can be reduced, while the pressure proofing performance of the pressure vessel against the repeated impact can be enhanced.

    MOLDING MATERIAL
    25.
    发明专利
    MOLDING MATERIAL 失效

    公开(公告)号：JPH09239727A

    公开(公告)日：1997-09-16

    申请号：JP5328496

    申请日：1996-03-11

    Applicant: TORAY INDUSTRIES

    Inventor： ISHIBASHI SOICHI ,  KYONO TETSUYUKI ,  YAMAGIWA MASAYOSHI

    IPC: B29B11/16 ,  B29K105/06

    Abstract: PROBLEM TO BE SOLVED: To obtain a molding material avoiding exposure of a reinforced fiber by a crack or the like of a coated resin part and having a superior moldability resulted in obtaining a molded article with a stable quality, in molding by a coated mold molding material. SOLUTION: In a molding material formed of a coated thermal plastic resin at a periphery of a continuous reinforced fiber bundle, a ratio d1/d2 of a distance d1 between a centroid of a fibre bundle area and a centroid of a whole molding material at a cross section surface of the molding material and a distance d2 which is the shortest of the distances connecting one molding material outlining point X of an extended straight line passing a centroid of the whole molding material with the other molding material outlining point Y on the extended straight line is 10% or less.

    GAS CYLINDER
    26.
    发明专利
    GAS CYLINDER 失效

    公开(公告)号：JPH08219393A

    公开(公告)日：1996-08-30

    申请号：JP5177995

    申请日：1995-02-15

    Applicant: TORAY INDUSTRIES

    Inventor： KITANO AKIHIKO ,  YAMAGIWA MASAYOSHI ,  IIDA YASUSHI

    IPC: F17C1/00 ,  B29C70/16 ,  B29L22/00 ,  F17C1/16

    Abstract: PURPOSE: To provide a gas cylinder suppressing the generation of 90 deg. crack of an outer shell made of FRP so as to be excellent in environmental resistance and durability. CONSTITUTION: In a gas cylinder having an inner shell 2 with gas barrier property and a pressure tight FRP outer shell 3 provided in such a way as to cover the inner shell 2, the M-value (ductility in the fiber direction/ductility in the right-angled direction to the fiber direction) of FRP constituting the outer shell 3 is to be 2 or less.

    GAS CYLINDER AND MANUFACTURE THEREOF
    27.
    发明专利
    GAS CYLINDER AND MANUFACTURE THEREOF 失效

    公开(公告)号：JPH08219390A

    公开(公告)日：1996-08-30

    申请号：JP5177495

    申请日：1995-02-15

    Applicant: TORAY INDUSTRIES

    Inventor： YAMAGIWA MASAYOSHI ,  IIDA YASUSHI ,  KITANO AKIHIKO

    IPC: F17C1/16 ,  B29C70/16 ,  B29D22/00 ,  B29K105/08

    Abstract: PURPOSE: To heighten pressure tightness in the shoulder part of a gas cylinder of double layer structure formed of an inner shell and an outer shell. CONSTITUTION: In a gas cylinder having an inner shell 2 with gas barrier property and a pressure tight FRP outer shell 3 provided in such a way as to cover the inner shell 2, the innermost layers 9a, 9b in the shoulder part of the outer shell 3 have the hoop wound layers of reinforcing fiber.

    IMPACT ENERGY ABSORBING DEVICE
    28.
    发明专利
    IMPACT ENERGY ABSORBING DEVICE 失效

    公开(公告)号：JPH07224875A

    公开(公告)日：1995-08-22

    申请号：JP4190594

    申请日：1994-02-15

    Applicant: TORAY INDUSTRIES

    Inventor： OCHI HIROSHI ,  YAMAGIWA MASAYOSHI

    IPC: E01F15/00 ,  B63B43/18 ,  B64C31/02 ,  B66B5/28 ,  E01F15/06 ,  F16F7/12

    Abstract: PURPOSE:To provide the structure of an impact energy absorbing device which employs an energy absorbing member made of FRP to perform high-efficient absorption of energy and especially a concrete structure developed in various fields. CONSTITUTION:An energy absorbing member 3 made of FRP is provided to absorb impact energy in a direction opposite to an impact force load direction through own compression rupture. This constitution performs high-efficient and effective absorption of impact energy exerted on a device during the occurrence of abnormality.

    ENDLESS BELT MOLDING DIE WITH DOUBLE TEETH
    29.
    发明专利
    ENDLESS BELT MOLDING DIE WITH DOUBLE TEETH 失效

    公开(公告)号：JPH0216040A

    公开(公告)日：1990-01-19

    申请号：JP16625388

    申请日：1988-07-04

    Applicant: TORAY INDUSTRIES

    Inventor： YAMAGIWA MASAYOSHI ,  KAWASHIMA SHIGERU ,  SEKIDO SHUNEI

    IPC: B29C43/36 ,  B29D29/08 ,  B29L29/00

    Abstract: PURPOSE:To mold a double teeth belt easily with high accuracy without generating displacement between an internal tooth and an external tooth by composing the title molding die of an inner mold, an outer circumference of which has a tooth type for forming the internal tooth, an outer mold, an inner circumference of which has a tooth type for shaping the external tooth and which is divided into the plural, and a hold-down mold for pushing the belt. CONSTITUTION:A material 1 for molding a double teeth belt is set onto a base 2 under the state in which one end in the cross direction is erected. Tooth types 7 having shapes corresponding to the internal teeth of the double teeth belt are shaped onto the outer circumference of a columnar body 6 in an inner mold 3, an annular body 8 is divided into the plural in an outer mold 4, and tooth types 9 having shapes corresponding to the external teeth of the double teeth belt are formed onto the inner circumferences of the annular bodies 8 respectively. For apply pressure to the outer mold 4, a tapered ring 11, the inside of which has a tapered surface 10, is fitted to the outer mold 4, in which taper-working is executed to an outer circumference, and the taper ring 11 may be pushed from an upper section by a press. Internal teeth 13 having approximately the same pitch diameter as a molded form and teeth types and external teeth 14 are shaped to each of the inner circumferential surface and outer circumferential surface of an annular body 15 in a hold-down mold 5.

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