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31. 发明专利

JPS63132037A MANUFACTURE OF CYLINDRICAL BODY MADE OF FIBER REINFORCED PLASTIC 失效
公开(公告)号：JPS63132037A
公开(公告)日：1988-06-04
申请号：JP27922286
申请日：1986-11-21
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： BESSHO HISAMI , SASAJIMA YOICHI , KINOSHITA KENICHI
IPC分类号： B29C70/06 , B29D23/00
摘要： PURPOSE:To mold a perfect bellows by a method in which the surface of an inner mold is covered with a tube member and the outer side of fiber layer is covered with an outer mold by reducing the pressure in an air gap, while winding the resin impregnated fiber thereon, whereby the cylindrical mold is compressed on the fiber layer, pressurizing the air gap. CONSTITUTION:The bellows molding part 1 of an inner mold A is formed into the sing shape with a parallel are part 2 and a sector part 3, and encloses the out side of a core mold 4; further, at the total periphery of outside thereof, an unevenness 5 for molding the bellows is formed. The annular protrusions 12 of the slidable cylinder 11 fitting onto the outside of each end ring 6, are slidably fitted into the annular depression 13 of each ring 6. At the state where a gap exists in between the inner ends of both slidable cylinders 11 and both ends of the bellows molding part 1, they are covered with a tube member 15. The continuous fiber impregnated with resin is wound up on said members and the fiber layer 16 thus wound is formed. The pressure in an air gap 21 is reduced through a connecting hole 22 of an outer mold B, and the inner diameter of a cylindrical mold 18 is expanded, and then the outer mold B covers the outside of the fiber layer 16. While stopping the pressure reduction of the air gap 21 and feeding compressed air, the inner surface of the cylindrical mold 19 is compressed to the fiber layer 18, and axial force to the bellows molding part 1, is applied to the slidable cylinder 11. The cylindrical body with bellows is obtained after pressurizing and curing it.

32. 发明专利

JPS6364731A FILAMENT WINDING 失效
公开(公告)号：JPS6364731A
公开(公告)日：1988-03-23
申请号：JP21015386
申请日：1986-09-04
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： BESSHO HISAMI , SASAJIMA YOICHI , HAYASHI SHINTARO
IPC分类号： B29C70/16 , B29D23/00
摘要： PURPOSE:To device to wind a tape of broad width uniformly in thickness and besides precisely to the extreme extent, by distributing a delivering fiber to a mandrel and drawing it into the uniform size and thereafter winding it on the mandrel while a constant gap is being kept between the distributing section set up at a carriage traverse and an axial symmetry mandrel. CONSTITUTION:First, a continuous fiber is distributed through a distributing section 13 set up at around the delivering point of a fiber and then this distributed fiber is drawn into the uniform size by an axial symmetry body 15, so that the surplus spread or the bias spread of the fiber at the delivering point (guide bar 15a or the connecting point with 15a) can be avoided by the operation of the distributing section, which makes the guide eye stable and prevents the string disorder. Consequently, even if a delivering tape to the mandrel is a broad one, no gap between the fiber is found and the thickness becomes uniform. Especially, if a cylinder 12 is capable of rotating with an axis phi as the center of the rotation, a stable delivery of the fiber is guaranteed because the guide bar 15a or 15a' is kept vertical to the guide eye all the time at any wrapping angle.

33. 发明专利

JPS6334126A FIBER REINFORCED PLASTIC, MANUFACTURE THEREOF AND MOLD THEREFOR 失效
公开(公告)号：JPS6334126A
公开(公告)日：1988-02-13
申请号：JP17829986
申请日：1986-07-28
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： BESSHO HISAMI , SASAJIMA YOICHI , MURAYAMA TADAO , KINOSHITA KENICHI
IPC分类号： B29C70/16 , B29C70/06 , B32B1/08
摘要： PURPOSE:To efficiently manufacture a fiber reinforced plastic (FRP) cylinder by a method wherein a thin synthetic resin film is put on and, after that, a continuous resin-impregnated fiber is wound round a mold, in which a corrugated part forming section is devided peripherally and splits having same shape as each other are connected to each other by means of a common cam mechanism, in order to form a fiber-wound layer by curing. CONSTITUTION:In a mold 10, which is used as an inner mold, a corrugated part mold 12, which is separated from a cylindrical part mold 11, is divided peripherally and resultant splits 12a and 12a' having same shape as each other are connected to each other by means of a common cam mechanism 13. The outer surface of the mold 10 is covered with a thin synthetic resin film layer 18. A continuous resin-impregnated fiber is wound round the mold 10 onto the thin film layer 10 in order to form a thin fiber-wound layer 19 for obtaining a FRP cylinder by curing matrix resin and, after that, removing from the mold. In order to remedy the poor dimensional accuracy of the outer surface of the FRP cylinder, an outer mold 20, the inner diameter of a cylindrical mold 22 in which is enlarged by evacuating an air space part 23, is fitted onto the mold 10, onto which the fiber-wound layer 19 is formed, so as to urge the cylindrical mold 22 to the fiber-wound layer 19 by releasing the evacuation of the air space part 23 and further, by contrary, pressurizing the air space part 23 in order to thermoform the layer 19.

34. 发明专利

JPS62213927A MACHINING METHOD FOR THIN WALL CYLINDRICAL BODY MADE OF FIBER REINFORCED PLASTIC 失效
公开(公告)号：JPS62213927A
公开(公告)日：1987-09-19
申请号：JP5556886
申请日：1986-03-11
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SASAJIMA YOICHI , ITO HIROHISA , MURAYAMA TADAO , KINOSHITA KENICHI , HAYASHI SHINTARO
IPC分类号： B23P11/02 , B23B1/00 , B23B31/30 , B23P25/00
摘要： PURPOSE:To shorten working time and improve machining reliability by machining the external surface of a cylindrical body with a core body formed in double structure consisting of an elastically deformable external pipe and an internal pipe fitted to the external pipe concentrically and with pressure fluid introduced between both pipes to make the core body contact tightly with internal surface of a thin cylindrical body made of fiber reinforced plastics. CONSTITUTION:In order to form a core body 10, an external pipe 14 whose outer diameter is smaller than the inner diameter of a cylindrical body 1 made of fiber reinforced plastics (FRP) is fitted to the periphery of an internal pipe 11 elastically deformable and concentrically with the internal pipe 11, and a pressure adding chamber 15 is provided between both pipes 11 and 14, and a pressure keeping means 18 is inserted into a pressure fluid introducing passage 17. And the core body 10 is inserted into the FRP cylindrical body, and pressure fluid is introduced into the pressure adding chamber to expand the external pipe 14 radially for making it contact tightly with the internal surface of the cylindrical body 1 and the pressure in the chamber is kept constant by the pressure keeping means 18. The external surface of the cylindrical body 1 can, therefore, be machined using the core body 10 as reference and the core body 10 can be readily removed by relieving the pressure in the pressure adding chamber 15. Therefore, working time can be shorten, and machining reliability can be improved.

35. 发明专利

JPS62143785A INNER PIPE OF FRONT FORK FOR TWO-WHEEL BARROW 失效
公开(公告)号：JPS62143785A
公开(公告)日：1987-06-27
申请号：JP28748285
申请日：1985-12-18
申请人： HONDA MOTOR CO LTD , SUMITOMO ELECTRIC INDUSTRIES
发明人： HAGIWARA YOSHITOSHI , FUJITAKA NOBUO , SHINADA MASAO , SASAJIMA YOICHI , ITO HIROHISA
IPC分类号： F16F9/32 , B32B1/08 , B32B15/08 , B62K25/08

36. 发明专利

JPS6215339B2 失效
公开(公告)号：JPS6215339B2
公开(公告)日：1987-04-07
申请号：JP11818579
申请日：1979-09-13
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SASAJIMA YOICHI , ITO HIROHISA , BETSUSHO HISAMI
IPC分类号： B29C67/00 , B29C51/12 , B29C57/00 , B29C70/06 , B29C70/16 , B29D22/00 , B29D23/00 , C08J5/04

37. 发明专利

JPS6237201A FIBER REINFORCED PLASTIC 失效
公开(公告)号：JPS6237201A
公开(公告)日：1987-02-18
申请号：JP17876085
申请日：1985-08-12
申请人： SUMITOMO ELECTRIC INDUSTRIES , HONDA MOTOR CO LTD
发明人： SASAJIMA YOICHI , ITO HIROHISA , SAKURADA YOSHIHIRO , HAGIWARA YOSHITOSHI , FUJITAKA NOBUO , SHINADA MASAO
IPC分类号： B32B5/02 , B29C70/10 , B29C70/16 , B29K105/06 , B29L31/32 , B32B37/00 , B60B5/00 , C08J5/04
摘要： PURPOSE:To improve the profile accuracy and the strength, in the fiber reinforced plastic rim for vehicle having a projection for fixing a plate in the center of innercircumferential face, by laminating three pseudo-isotropic layers composed of plural resin immersed layers and forming drop center, bead seat section and flange section. CONSTITUTION:Three layers of epoxy resin immersed carbon fibers and laminated while shifting the direction of fiber by about 30 deg. onto each of a pair of inner dies 8 to set a pseudo-isotropic surface layer 6. Then six sheets of fibers are pseudo-isotropically laminated with fiber direction of about 30 deg. to form an intermediate layer 5 which is laminated onto the surface layer 6. Thereafter, the inner dies 8 are integrated through a bolt and a nut to align with the central axis and the rotary shaft 10 is inserted into said dies 8 to rotate said shaft 10 thus to form a filament winding layer 7 where the epoxy resin immersed reinforcing fibers are making angle of + or -10 deg., + or -60 deg. against the rotary shaft 10. With such arrangement, the profile accuracy and the strength can be improved.

38. 发明专利

JPS61261032A MANUFACTURE OF SANDWICH CYLINDRICAL MATERIAL PROVIDED WITH HOLE AND MADE OF FIBER REINFORCED PLASTICS 失效
公开(公告)号：JPS61261032A
公开(公告)日：1986-11-19
申请号：JP10457385
申请日：1985-05-14
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SASAJIMA YOICHI , BESSHO HISAMI
IPC分类号： B29C70/16 , B29C70/06 , B29D23/00
摘要： PURPOSE:To contrive an improvement in reliability on an insert part by facilitating boring operation, by processing an insertion hole of an insert material after a skin layer, which is an inner layer, and a core layer, which is a sintertic foam, have been unified. CONSTITUTION:After a skin layer 2, which is an inner layer, has been formed through a filament winding (FW) method, a core material molded beforehand is stuck 3 over the same, then an insertion hole 7 of an insert material 6 is provided in an obtained laminate and after insertion and adhesion of the insert material here, a form of the external circumference of the laminate is shaped through machining of the external circumference. Then the insert material 6 including a skin layer 4, which is an outer layer and has been molded through the FW method beforehand, is bored by performing pressing-in and adhesion of the skin layer 4, which is the outer layer, in the external circumference of the laminate. As for interference between the laminate and skin layer 4, to an extent of 0-0.3/diameter is favorable from workability point of view. As boring of a sintertic foam core is performed after unification with the skin layer 2, which is the inner layer, fragility of the core is not linked with inferiority in boring properties and manufacturing is facilitated.

39. 发明专利

JPS61220830A MANUFACTURE OF PIPE MADE OF FIBER REINFORCED PLASTICS 失效
公开(公告)号：JPS61220830A
公开(公告)日：1986-10-01
申请号：JP6576685
申请日：1985-03-27
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SASAJIMA YOICHI , OUCHI KOJI , BESSHO HISAMI
IPC分类号： B29C70/16 , B29C33/50 , B29C43/12 , B29C70/06 , B29C70/44 , B29D23/00 , B29K105/10
摘要： PURPOSE:To manufacture the pipe, having high accuracy, high performance and complicated configuration, by a method wherein continuous fibers, impregnated with resin, are wound around a cylindrical mold, thereafter, are expanded forcibly against the inner surface of a forming mold. CONSTITUTION:The cylindrical core mold 2 is inserted into first elastic pipe 3 consisting of an elastic body such as rubber or the like to form a filament winding mold 1. A FRP forming filament layer 4, consisting of the continuous fibers such as glass fibers, carbon fibers or the like, which are impregnated with the resin, is formed on the outer peripheral surface of the mold 1. Second elastic pipe 7, consisting of an elastic body such as rubber or the like, is covered further on the filament layer 4. Next, the core mold 2 in the fist elastic pipe 3 is pulled out and the first elastic pipe under a condition that the filament layer 4 and the second elastic pipe 7 are provided on the outer peripheral surface thereof, is loaded into the forming mold 10. The first elastic pipe 3 is filled with pressure medium to apply an internal pressure on the inner surface of the first elastic pipe 3 and expand it against the inside of the forming chamber 13 of the forming mold 10 together with the filament layer 4 and the second elastic pipe 7 and, thereafter, the resin in the filament layer 4 is heated to cure it.

40. 发明专利

JPS61206607A MOLDING TOOL FOR FIBER REINFORCED PLASTICS 失效
公开(公告)号：JPS61206607A
公开(公告)日：1986-09-12
申请号：JP5019485
申请日：1985-03-11
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SASAJIMA YOICHI , BESSHO HISAMI
IPC分类号： B29C33/20 , B29C33/30 , B29K105/00
摘要： PURPOSE:To prevent voids from developing in a molded part by a structure wherein an O-ring is fitted in an O-ring groove formed on the top surface of the flange of a male mold and bolt holes, which pierce the flange of a female mold, are made at several circumferential positions of the flange of the female mold. CONSTITUTION:An O-ring groove 8, in which an O-ring 9 is fitted, is formed on the top surface of the flange 7 of a male mold 1. In addition, bolt holes 14, which pierce a flange 12, are made at several circumferential positions of the flange 12 of a female mold 10. Thus, no efflux of resin outside a molding tool occurs. In addition, because excess resin flows out of the bolt holes 14, no backflow of resin in the tool occurs, resulting in preventing the pressurizing force from decreasing during curing by heating and voids from developing.

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