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21. 发明专利

JPH09257465A NONCONTACT METHOD FOR MEASURING STRAIN OF MINUTE AREA 失效
公开(公告)号：JPH09257465A
公开(公告)日：1997-10-03
申请号：JP7067696
申请日：1996-03-26
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HIROYUKI
IPC分类号： G01B21/32
摘要： PROBLEM TO BE SOLVED: To provide a method for measuring the amount of a large strain of a minute area simply and highly accurately. SOLUTION: Four points A, B, C, D are set to an object to be measured. After the object is deformed, positions of corresponding points E, F, G, H to the four points A, B, C, D are measured. A quadrilateral EFGH is moved in parallel so that the E point overlaps with the A point. Distances Lx , Ly in an X-axis direction of the points E and F, a Y-axis direction of the points E and H are operated as an X coordinate and a Y coordinate of the points F, H, from which main strains ε1 , ε2 and main shear strains γ1 , γ2 are operated.

22. 发明专利

JPH06206222A PREPREG LAMINATED RESIN BASE COMPOSITE MATERIAL 失效
公开(公告)号：JPH06206222A
公开(公告)日：1994-07-26
申请号：JP333993
申请日：1993-01-12
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HIROYUKI
IPC分类号： B29B11/16 , B29C43/20 , B29K105/06 , B32B7/04
摘要： PURPOSE:To obtain a resin base composite material having excellent interlaminar bonding strength and high mechanical strength even in the case of simple press molding without damaging the characteristics of a reinforcing fiber base material bearing fundamental strength. CONSTITUTION:A prepreg laminated resin base composite material is constituted by alternately laminating prepregs 1 and sheet materials 2 having projections 20 and through-holes 21. Interlaminar shearing strength is enhanced by anchor effect due to the projections and the bonding of the prepregs through the through-holes 21.

23. 发明专利

JPH06206221A PREPREG LAMINATED RESIN BASE COMPOSITE MATERIAL 失效
公开(公告)号：JPH06206221A
公开(公告)日：1994-07-26
申请号：JP333793
申请日：1993-01-12
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HIROYUKI
IPC分类号： B29B11/16 , B29C43/20 , B29K105/06 , B32B7/04
摘要： PURPOSE:To obtain excellent interlaminar bonding strength and high mechanical strength even in the case of simple press molding without damaging the characteristics of a reinforcing fiber base material bearing fundamental strength. CONSTITUTION:In a resin base composite material wherein a plurality of prepregs 1 are laminated, a spherical filler 2 with a particle size of 50mum or less is interposed between the mutual interfaces of the prepregs 1. The interfaces become uneven by the spherical filler and interlaminar shearing strength is enhanced by anchor effect.

24. 发明专利

JPH06182781A MANUFACTURE OF FRAMED RESIN BODY 失效
公开(公告)号：JPH06182781A
公开(公告)日：1994-07-05
申请号：JP33733392
申请日：1992-12-17
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HIROYUKI , KAGEYAMA YASUSHI
IPC分类号： B29C39/10 , B29C39/40 , B29K105/20
摘要： PURPOSE:To provide a method of manufacturing a resin body with a frame capable of effectively protecting the resin body from cracking during the manufacturing period. CONSTITUTION:The manufacture of a resin body with a frame is characterized such that cure-contractible liquid resin is poured and then cured into a frame 1 so that a resin body 2 is formed integrally with the frame 1, and an elastic sheet 3 joined to the frame 1 and resin body 2 is interposed therebetween for absorbing the contraction of the resin body during the curing period. Since the elastic sheet 3 elastically deforms and follows the contraction of the resin body 2 during the cute-contraction of the resin body 2, the stress caused by the cure-contraction of the resin body 2 can be absorbed by the elastic deformation of the elastic sheet 3, thus the cracks of the resin body 2 can be prevented effectively.

25. 发明专利

JPH05124120A FIBER-REINFORCED RESIN STRUCTURE 失效
公开(公告)号：JPH05124120A
公开(公告)日：1993-05-21
申请号：JP31991991
申请日：1991-11-06
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HIROYUKI
IPC分类号： B29C70/10 , B32B5/08 , B32B27/04
摘要： PURPOSE:To provide an FRP structure, in which elastic deformation in the other direction can be increased while keeping rigidity in the specific direction. CONSTITUTION:An FRP structure 1 is manufactured by impregnating a fiber base material 2 for reinforcement, in which a first base material 20, in which fibers 22 having a high Young's modulus are extended in the longitudinal direction, is held by second base materials 10 knitted by warp 12 elongated in the short direction and weft 14 elongated in the longitudinal direction and having a low Young's modulus, with a synthetic resin 4 and solidifying the synthetic resin. Upper and lower FRP layers reinforced by the second base material 10 display large elastic deformation to stress in the vertical direction. When bending stress works from the vertical direction of the FRP structure 1, the FRP structure 1 also displays large elastic deformation because the upper and lower layers, to which large stress is applied, indicate large elastic deformation. When bending stress works from the longitudinal or horizontal direction, there is an FRP layer reinforced by the first base material 20 composed of the fibers 22 having the high Young's modulus even on a surface section, to which large distortion is applied, thus acquiring large rigidity.

26. 发明专利

JPH03203629A PREPARATION OF ARM STRUCTURE MADE OF FIBER REINFORCED RESIN 失效
公开(公告)号：JPH03203629A
公开(公告)日：1991-09-05
申请号：JP34188189
申请日：1989-12-29
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HIROYUKI
IPC分类号： B29C70/16 , B29L31/00
摘要： PURPOSE:To enhance the strength of an arm structure made of a fiber reinforced resin by a method wherein a resin impregnated continuous fiber is taken up in the first process while guided by the guide groove of the core member arranged between a sleeve member and a ball joint socket member to fill the gap therebetween and the resin infiltrated in the continuous fiber is cured in the second process. CONSTITUTION:An epoxy resin impregnated continuous fiber 9 is continuously drawn out and taken up in an almost V-shape using a socket member 21, a pair of sleeve members 3, 4 and the first and second core members 13, 14 as take-up cores. At this time, the fiber 9 is taken up in the direction crossing the inclined axial line P2 of the socket member 21 at a right angle by the side peripheral surface of the socket member 26 while guided by the respective guide grooves 130, 140 of the first and second core members 14, 14. Then, an intermediate product consisting of the socket member 21, the first and second core members 13, 14, the first and second members 3, 4 and the almost V-shaped fiber bundle 90 taken up by those members to be formed is formed. The intermediate product obtained in the first process is heat-treated at about 100 deg.C for 2hr in the second process.

27. 发明专利

JP2001134270A HIGH HEAT-RESISTANT SOUND ABSORBING MATERIAL 失效
公开(公告)号：JP2001134270A
公开(公告)日：2001-05-18
申请号：JP31086099
申请日：1999-11-01
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HIROYUKI
IPC分类号： G10K11/162 , C08K7/26 , C08K7/28 , C08L9/04 , C08L9/08 , C08L101/00
摘要： PROBLEM TO BE SOLVED: To provide a sound absorbing material which is high in heat resistance. SOLUTION: This sound absorbing material is composed of inorganic particles and a binding layer which binds the inorganic particles is made of an alkali silicate. In addition, by incorporating resin or latex into the binding layer, further toughness can be given.

28. 发明专利

JP2000234276A FIBER STRUCTURE AND PRODUCTION OF FIBER STRUCTURE 失效
公开(公告)号：JP2000234276A
公开(公告)日：2000-08-29
申请号：JP3705199
申请日：1999-02-16
申请人： TOYOTA MOTOR CORP
发明人： IWAI SATOSHI , KOYAMA HIROYUKI
IPC分类号： A47C27/12 , D04H1/435 , D04H1/76 , D06M15/643 , D06M15/693 , D04H1/70
摘要： PROBLEM TO BE SOLVED: To provide a fiber structure having arbitrarily controllable deformation behavior in compression deforming and provide its production process. SOLUTION: This fiber structure 10 is constructed of a plurality of single fibers 12 having a coating material uniformly applied to the surface of the fiber 12. Since the friction coefficient of the surface of the single fiber 12 is varied to a prescribed value by the application of the coating material compared with a fiber free from the coating material, the deformation behavior in the middle stage of the compression deformation of the fiber structure 10 becomes arbitrarily controllable.

29. 发明专利

JPH10273555A INORGANIC FIBROUS REINFORCEMENT 失效
公开(公告)号：JPH10273555A
公开(公告)日：1998-10-13
申请号：JP7785297
申请日：1997-03-28
申请人： TOYOTA MOTOR CORP
发明人： KAGEYAMA YASUSHI , KOYAMA HIROYUKI
IPC分类号： C08K9/02 , C08L21/00 , C08L101/00
摘要： PROBLEM TO BE SOLVED: To obtain an inorg.-fiber-reinforced composite having high strengths with an improved bonding strength without allowing interfacial separation or cracks to occur even in the case of a composite article comprising glass fibers and a resin by using an inorg. fibrous reinforcement surface-treated with a silane coupling agent comprising a mixture of compds. having different molecular lengths. SOLUTION: The silane coupling agent used as an interfacial reinforcing agent for a glass fiber composite comprises at least one inorg. reactive group OR, an org. ractive group X, and a linear chain connecting the former group to the latter as represented by the formula (wherein R is methyl or ethyl; n is 2 or 3; and X is vinyl, epoxy, amino, methacryloyl, mercapto, etc.). The coupling agent undergoes the hydrolysis of the alkoxy group in an aq. soln., reacts with hydroxyl groups of the surface of a glass fiber to form a siloxane bonds, and undergoes the dehydration and condensation to form a monomolecular layer. On the other hand, the reactive group X reacts with the resin to form bonding. A silane coupling agent used here comprises a mixture of compds. having the linear connecting chains with different lengths.

30. 发明专利

JPH09280321A TOOTHED BELT 失效
公开(公告)号：JPH09280321A
公开(公告)日：1997-10-28
申请号：JP9098896
申请日：1996-04-12
申请人： TOYOTA MOTOR CORP
发明人： KOYAMA HIROYUKI
IPC分类号： F16G1/28
摘要： PROBLEM TO BE SOLVED: To provide a toothed belt in which an anti-wear characteristic of a canvas covering a toothed part of the toothed belt is improved and a high durability can be attained. SOLUTION: A surface of a tooth part 14 of a toothed belt reinforced with a core wire 12 is covered with a canvas 16 and when the canvas 16 is processed with RFL while anti-wearing material powder 20 is being added. The anti- wearing material powder 20 is fixed and arranged with RFL near fiber 18 of the canvas 16. With such an arrangement as above, the anti-wear material powder 20 is contained in the canvas 16, resulting in that anti-wearing characteristic of the canvas 16 is improved and a lack of tooth caused by wearing of the tooth part 14 can be prevented.

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