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    PACKET FRAME
    1.
    发明专利
    PACKET FRAME 失效

    公开(公告)号：JPH02305580A

    公开(公告)日：1990-12-19

    申请号：JP12685589

    申请日：1989-05-19

    Applicant: TORAY INDUSTRIES

    Inventor： HAYASHI MIKIO ,  ISHIWATARI TORU ,  AKIMOTO TATSUO

    IPC: A63B49/10 ,  A63B102/02 ,  A63B102/04

    Abstract: PURPOSE:To reduce weight and to provide high strength and high rigidity by a method wherein reinforcing fibers are woven in a three-dimensional direction and in a given shape in cross section such that the fibers are turned over on the outer periphery of a frame as they obliquely cross a three-dimensional direction of the axial direction of the frame and directions extending at right angles with the axial direction or cross the three-dimensional direction at right angles. CONSTITUTION:A fiber reinforced composite material 23 of a racket frame 19 is a substance manufactured by applying processing on a three-dimensional fiber structure 8. The three dimensional fiber structure 8 is formed such that a plurality of reinforcing fiber bundles 9 cross each other obliquely in a threedimensional direction of an axial direction Y of a frame and axes X and Z extending at right angles with the frame axis, and are woven as they are entangled with each other. The reinforcing fiber bundles 9 are woven such that the fiber bundle extends through the structure 8, it is exposed from the outer periphery of the structure 8, and turned over and extends toward the interior again. This constitution provides strength, e.g. interlayer resistant peel, interlayer resistant shearing, impact resistance, bending resistance characteristics, end rigidity characteristics in any direction of the three- dimension of the frame 19, and reduces the weight of the frame 19 since the frame of a monolayer and a constitution fiber amount is low.

    SCREW-SHAPED MOLDED PRODUCT COMPOSED OF FIBER REINFORCED COMPOSITE MATERIAL AND ITS MANUFACTURE
    3.
    发明专利
    SCREW-SHAPED MOLDED PRODUCT COMPOSED OF FIBER REINFORCED COMPOSITE MATERIAL AND ITS MANUFACTURE 失效

    公开(公告)号：JPH01259932A

    公开(公告)日：1989-10-17

    申请号：JP8969888

    申请日：1988-04-12

    Applicant: TORAY INDUSTRIES

    Inventor： HAYASHI MIKIO ,  SEKIDO SHUNEI ,  OGASAWARA MASASHI

    IPC: B22D19/14 ,  B29C70/06 ,  B29C70/10 ,  B29C70/24 ,  B29D1/00 ,  C08J5/04

    Abstract: PURPOSE:To increase the shearing strength of a thread by making a reinforced fiber bundle into a three-dimensional fiber structure of reinforced fiber bundles formed in three-dimensional knit units in a screw-shaped molded material constituted of a molded material of a fiber reinforced composed material consisting of a matrix and reinforced fiber bundles with screw channels formed thereon by means of a force. CONSTITUTION:As for a matrix to be used, synthetic resin, metal or the like is preferred, and as for the reinforcing fibers, inorganic fibers such as glass fibers or the like and organic fibers such Aramid fibers are used. A three- dimensional structure formed with fiber bundles 17 constituted of three- dimensional knit units. A fiber structure is constituted of reinforced fiber bundles 6 constituting most of three-dimensional knit units 7 oriented in oblique direction and respective reinforced fiber bundles entangled each other and formed in a solid shape. An intermediate material is formed by pressurizing and heating said matrix and reinforced fiber bundles, ant then the threads are formed with a force with screw channels and hardened. The material with high thread shearing strength can be manufactured at low cost by said arrangement.

    STRAND WIDENING DIE AND MANUFACTURE OF PREPREG USING SAME
    7.
    发明专利
    STRAND WIDENING DIE AND MANUFACTURE OF PREPREG USING SAME 失效

    公开(公告)号：JPH05131446A

    公开(公告)日：1993-05-28

    申请号：JP29280591

    申请日：1991-11-08

    Applicant: TORAY INDUSTRIES

    Inventor： ISHIZAKI TOSHIYUKI ,  KYONO TETSUYUKI ,  HAYASHI MIKIO

    IPC: B29B11/16 ,  B29B15/14 ,  B29C70/06 ,  B29K105/08

    Abstract: PURPOSE:To prevent generation of nap in a strand, by a method wherein a strand widening part comprised by forming a gap between projecting curved surface parts formed by arranging a pair of bar members with the surface parts confronting each other and a molten resin filling part arranged on an introducing port side of a strand of the strand widening part are provided. CONSTITUTION:A strand 1 sent out continuously from a sending out machine 2 is introduced into a strand widening die 6 via a guide 3 under a strained state where tension is applied to the strand 1. Then simultanesouly with widening of the strand the strand is molded into a precursor by a method wherein the strand is compounded with molten resin fed from a barrel part 5, this prepreg precursor is cooled by a cooling bath 8 in succession, after the same is dried by a dryer 9, the same is wound up by a wind-up machine 10. With this construction, since the strand does not come into contact violenty with the bar member of the strand widening part, napping also prevented by friction, surface roughening of the prepreg to be obtained becomes hard to occur and compounding state also between a fiber and the resin becomes favorable.

    APPARATUS FOR WET COAGULATING FIBER SHEETLIKE MATERIAL
    10.
    发明专利
    APPARATUS FOR WET COAGULATING FIBER SHEETLIKE MATERIAL 失效

    公开(公告)号：JPS60134074A

    公开(公告)日：1985-07-17

    申请号：JP24221483

    申请日：1983-12-23

    Applicant: TORAY INDUSTRIES

    Inventor： HAYASHI MIKIO ,  OKA TOSHIHIKO ,  NAGAOKA SHIGEYOSHI

    IPC: D06N3/00 ,  D04H1/645

    Abstract: PURPOSE:The titled apparatus, having rotating bodies placed on both sides of a fiber sheetlike material with a high polymer elastomer solution in a coagulation bath for coagulating the above-mentioned fiber sheetlike material by the wet method, and capable of coagulating rapidly the above-mentioned sheetlike material into a flexible sheetlike material. CONSTITUTION:A fiber sheetlike material 3 with a high polymer elastomer solution applied thereto is wet coagulated. In the process, rotating bodies 5 having a blade are placed on both sides of the sheetlike material 3 to be conveyed by rolls 4 in a coagulation bath 1 containing a coagulating solution 2, and rotated to stir the coagulating solution 2 of a high concentration on the surface of the sheetlike material 3 and accelerate the coagulation. According to the above-mentioned method, a strong force is not applied to the sheetlike material 3 as opposed to the conventional method, and trouble, e.g. permanent set in sheet thickness, will not occur. Preferably, the number of blades is 1-4, and the number of revolutions is 200-400r.p.m. The distance between the sheetlike material 3 and the blade tips of the rotating bodies 5 is 5-15mm..

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