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1. 发明专利

JPS63132008A METHOD FOR IMPREGNATING FIBER-BUNDLE WITH RESIN 失效
公开(公告)号：JPS63132008A
公开(公告)日：1988-06-04
申请号：JP27922186
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 , B29B15/12 , C08J5/24
摘要： PURPOSE:To impregnate a fiber bundle with a solvent free resin, by impregnating the fiber bundle pulled out from a supplying part with the resin at a resin- impregnating part and pulling out the fiber bundle from an outlet while improving the degree of a reduced pressure by means of a groove and a lip seal. CONSTITUTION:A resin-impregnating part 11 is set at a front of a supplying part 6. The resin-impregnating part 11 is consisted of a resin bath 12 and plural guide rollers 13 and a liquid non-solvent type resin supplied from a resin- supplying part 4 is stored in the resin bath 12. An outlet part 5 is a flat hole from which a fiber bundle 8 is passed through with a little gap and on the lower edge of which a groove 14 is formed perpendicular to the forwarding direction of the fiber bundle 8. Supporting parts 15 whose cross-sectional shape is a triangle are fixed above and below the outside of the outlet part 5, and lip-shaped seals 16 of rubbery elastic bodies are fixed on the slopes of the supporting parts to be brought into contact with the upper and lower faces of the fiber bundle 8. The fiber bundle 8 pulled out from the supplying part 6 is impregnated with the resin at the resin-impregnating part 11 and pulled out from the outlet part 5 while improving the degree of a reduced pressure by means of a groove and the lip seals.

2. 发明专利

JPS6342847A CYLINDRICAL BODY HAVING RECESSION AND PROJECTION, MADE OF FIBER REINFORCED PLASTICS, ITS MOLD AND MANUFACTURE EMPLOYING IT 失效
公开(公告)号：JPS6342847A
公开(公告)日：1988-02-24
申请号：JP18731786
申请日：1986-08-08
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 employ a mold, easy in dismantling and assembling, and permit the mass production of a highly accurate FRP product, necessitating no finishing work of the outer surface thereof, by a method wherein respective split bodies of split molds, formed with the molding surfaces of recessed and projected parts, are constituted so as to be tilted with one side thereof as a fulcrum for rotation toward the axial centers of the molds. CONSTITUTION:Resin impregnated continuous fibers are wound around a molding mold 10 by FW method to form an uncured FRP layer 16. An outer mold 20 is fitted to the molding mold 10, on which the uncured FRP layer 16 is formed, and, subsequently, the evacuation of a cavity 23 is released and a pressure is applied thereon to abut a cylindrical mold 22 against the layer 16 and mold the whole of a cylindrical body by heating. After the curing of matrix resin, the cavity 23 is evacuated again to extract the molding mold 10 out of the outer mold and release a product from the mold 10. In a mold releasing sequence in this case, a core body 11 and an end ring 13 are removed sequentially at first, then, split bodies 12a, whose inside circumferential size is larger than the outside size, are separated from the product by forcing a wedge into the body or by some other means, and the split bodies are rotated inwardly about a hinge point. Thereafter, the split bodies 12b are turned inwardly in the same manner and the split molds, separated from the product, may by extracted in the lengthwise direction of the split mold.

3. 发明专利

JPH0616961B2 失效
公开(公告)号：JPH0616961B2
公开(公告)日：1994-03-09
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

4. 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.

5. 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.

6. 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.

7. 发明专利

JPS6321129A METHOD FOR MACHINING FIBER REINFOCED PLASTIC BELLOWS JOINT 失效
公开(公告)号：JPS6321129A
公开(公告)日：1988-01-28
申请号：JP16641286
申请日：1986-07-14
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ITO HIROHISA , SASAJIMA YOICHI , BESSHO HISAMI , AKIYAMA FUSAO , MURAYAMA TADAO , KINOSHITA KENICHI
IPC分类号： F16J3/04 , B29C65/00 , B29C67/00 , B29D23/00 , B29L23/00 , F16D3/74 , F16L27/10
摘要： PURPOSE:To make it possible to machine the joint areas with high straightness with respect to a cylinder by a method wherein the deformation of a fiber reinforced plastic (FRP) bellows joint by external force is eliminated at machining by securing the joint in position by means of a core. CONSTITUTION:After a core 10 is inserted in a FRP bellows joint 2 the inner diameter of which is slightly larger than the outer diameter of an outer pipe 11 in such a manner that respective rounded projections 16 positionally correspond to the cylindrically straight parts 3 and 3, which are formed at the corrugated part of the joint 2, pressurizing fluid is introduced into a pressure application chamber 13 so as to diametrically expand the outer pipe 11 in order to bring the rounded projections 16 into close contact with the inner surfaces of the cylindrically straight parts 3 and 3. Next, the pressure in the pressure application chamber under the above-mentioned closely contact state is held by a pressure holding means 19. After that, the core 10 is rotated by being supported on shafts 15 in order to machine the joint areas (a) and (b) of the cylindrically straight parts 3 and 3 with respect to a straight tube by employing the core as the datum. Accordingly, after machining the surface (a) is parallel to the joint reference axis O of the straight tube and the surface (b) is held normal to the axis O.

8. 发明专利

JPS62167032A MANUFACTURE OF FIBER REINFORCED PLASTIC CYLINDER 失效
公开(公告)号：JPS62167032A
公开(公告)日：1987-07-23
申请号：JP829386
申请日：1986-01-17
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ITO HIROHISA , SASAJIMA YOICHI , SAKURADA YOSHIHIRO , MURAYAMA TADAO , KINOSHITA KENICHI
IPC分类号： B29C70/16 , B29C70/06 , B29D23/00
摘要： PURPOSE:To obtain a high quality fiber reinforced plastic (FRP) cylinder with favorable mass-productivity at low cost by a method wherein the FRP cylinder is formed on a mold, which is radially expanded in advance, and its outer peripheral surface is machined under the state that the cylinder and the mold are in close contact with each other and, after that, the cylinder is removed from the mold by contracting the diameter of the mold into the one smaller than the diameter, around which fiber has been wound. CONSTITUTION:Firstly, the outer tube 7 of a mold 3 is radially expanded from the position indicated with chain lines to the position indicated with solid lines in the attached figure by introducing pressurizing fluid such as oil or the like into a pressurizing chamber 6. Second ly, around the outer peripheral surface of the resultant expanded tube 7, resin impregnated fiber bundle is wound at the predetermined orientation and thickness by filament winding method so as to cure the resin by heating in order to obtain a FRP cylinder 1. Thirdly, after being centered by using the mold as the reference, the outer surface of the cylinder 1 is ground so as to realize uniform section. Fourthly, the pressure in the pressurizing chamber 6 is released so as to contract the outer tube 7 radially and to produce a clearance between the cylinder 1 and the outer tube 7 in order to pull the cylinder 1 out of the mold 3. Because the diameter of the radially expanded mold is contracted into the smaller one than the diame ter, around which the resin impregnated fiber has been wound, the application of mold releas ing pressure to the cylinder can also be make unnecessary.

9. 发明专利

JPH0588180B2 失效
公开(公告)号：JPH0588180B2
公开(公告)日：1993-12-21
申请号：JP829386
申请日：1986-01-17
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ITO HIROHISA , SASAJIMA YOICHI , SAKURADA YOSHIHIRO , MURAYAMA TADAO , KINOSHITA KENICHI
IPC分类号： B29C70/16 , B29C70/06 , B29D23/00 , B29D23/22 , B29C67/14

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