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1. 发明专利

JPH05237946A 失效
公开(公告)号：JPH05237946A
公开(公告)日：1993-09-17
申请号：JP7904792
申请日：1992-02-28
申请人： NITTO BOSEKI CO LTD
发明人： KIKKO HIROKAZU , SATO SHIGERU , IKEJIRI HIROTAKA , NANJO HISASHI
IPC分类号： B29B11/16 , B29B15/10 , B29C70/10 , B29C70/16 , B29D23/00 , B29K105/06 , B29L23/00 , B29C67/14
摘要： PURPOSE:To provide a method for manufacturing a cylindrical matter made of FRP and a device to be used for it wherein working environment is improved, because resin, cross linking agent, and solvent do not scatter nor diffuse, a high safety can be obtained as a worker can work at a position apart from a mandrel, and mechanical strength of a molded cylindrical matter made of FRP is excellent. CONSTITUTION:Basically, a blind-like reinforced fiber base material 1 is set on a continuous reinforced fiber base material 7 impregnated with resin and is wound on a peripheral face of a mandrel 3, or the continuous reinforced fiber base material is wound on the peripheral face of the mandrel with downward feeding, and preferably, the blind-like reinforced fiber base material is set on the continuous reinforced fiber base material impregnated with the resin and wound on the peripheral face of the mandrel with downward feeding and chopped strand 28 and a resin 31 are supplied from the top of the mandrel.

2. 发明专利

JPH02196636A AUTOMATIC DEFOAMING DEVICE FOR FRP MOLDING 失效
公开(公告)号：JPH02196636A
公开(公告)日：1990-08-03
申请号：JP1565089
申请日：1989-01-25
申请人： NITTO BOSEKI CO LTD
发明人： HIRAYAMA NORIO , KIKKO HIROKAZU
IPC分类号： B29C70/06 , B05C17/02 , B29K105/06
摘要： PURPOSE:To press a defoaming roller to a resin layer to be defoamed with the desired pressure, move an arm with the desired angle to a resin layer, follow the roller to micro-projections and recesses in the resin layer and prevent the generation of excessive press force by applying proper fluid pressure respectively to a coupled of elastic shrinkable materials and pivoting the arm retaining a defoaming roller. CONSTITUTION:A support 13 mounted at the end of an arm 12 of a robot 11 can be moved along the desired route by means of the arm 12. A pulley 15 is fixed on a rotating shaft 14 rotatably at the end of the support 13, and different pressure is applied to a couple of elastic shrinkable materials 17A, 17B constituted at both ends of a wire rope 16 wound on the pulley. Desired rotation force is imparted on the rotating shaft 14 by the pressure control. Also, a defoaming roller 28 is mounted rotatably around an axis in parallel with the rotating shaft on an arm 27 pivoting integrally with the rotating shaft 14. The defoaming roller 28 can easily move followingly in the recessed and projected form to prevent the generation of excessive press force.

3. 发明专利

JPH02209929A PREFORM FOR FORMING FIBER-REINFORCED PLASTICS AND PRODUCTION THEREOF 失效
公开(公告)号：JPH02209929A
公开(公告)日：1990-08-21
申请号：JP3044089
申请日：1989-02-09
申请人： NITTO BOSEKI CO LTD
发明人： KIKKO HIROKAZU , NISHIZAKI AKIHIKO , ICHIJO TOSHIHIRO
IPC分类号： B29B11/16 , B29B15/10 , B29C53/56 , B29C53/84 , B29C70/06 , B29C70/16 , B29C70/32 , B29K105/10 , B32B5/26 , C08J5/04
摘要： PURPOSE:To obtain the objective preform by winding a continuous reinforcing fiber around a core mold, winding a hot-melt fiber web tape on the reinforcing fiber layer to obtain a formed article having a reinforcing fiber layer as the outermost layer and composed of a plurality of alternately laminated reinforcing fiber layers and hot-melt fiber layers and melting the hot-melt fiber with heat. CONSTITUTION:A continuous reinforcing fiber 2a (e.g. glass fiber) is wound around a core mold 6 and a hot-melt fiber web tape 4a (e.g. tape of a thermoplastic synthetic fiber such as vinyl acetate fiber) is wound on the reinforcing fiber layer to obtain a formed article having a reinforcing fiber layer 2d as the outermost layer and composed of a plurality of alternately laminated reinforcing fiber layers 2b, 2c and hot-melt fiber layers 4b, 4c. The formed article is heated to melt the hot-melt fiber, cooled and demolded from the core mold to obtain the objective preform containing the reinforcing fiber layers welded and integrated with each other by the hot-melt fibers. The formed article has high strength and rigidity in the orientation direction of the reinforcing fiber and is demoldable from the core mold without causing the collapse of the wound layers. It is suitable as a fiber-reinforced formed article such as automobile frame.

4. 发明专利

JPS62257819A CAST MOLDING EQUIPMENT 失效
公开(公告)号：JPS62257819A
公开(公告)日：1987-11-10
申请号：JP10275886
申请日：1986-05-02
申请人： NITTO BOSEKI CO LTD
发明人： GOTO SOTOTAMI , KIKKO HIROKAZU , IKEDA TOSHIO , NISHIZAKI AKIHIKO
IPC分类号： B29C33/04 , B29C33/10 , B29C33/56 , B29C39/26 , B29C39/38 , B29C45/14 , B29C45/73 , B29K101/10 , B29K105/08
摘要： PURPOSE:To enable cast molding under heating and a temperature rise using thermosetting resin, by a method wherein a pipe for the temperature rise is buried into a plastic layer adjacent to a metallic coating layer by turning a side mold surface into the metallic coating layer. CONSTITUTION:Casting parts 6 for casting thermosetting resin within a mold space 5 formed of a male and female molds 1, 2 and exhaust vents 7 for venting air in the mold space 5 are provided respectively at a plurality of positions on an important place of a male mold part 3. Then the female mold 2 is constituted of a female mold part 11 made of plastics having a metallic coating layer 10 on a mold surface and a stationary part 12 supporting and fixing the female mold part 11 by constituting of lumber and an angle iron by assembling them. Then a pipe 13 for a temperature rise based on a heating medium is buried into a position close to the metallic coating layer within the female mold part 11. The male and female mold parts 3, 11 are formed of the thermosetting resin, hereupon. It is desirable that the titled equipment is made of resin concrete or fiber reinforced plastics and especially fiber reinforced epoxy resin in consideration of strength of the mold, expansion or shrinkage based on heat, accuracy as the mold and dimensional stability.

5. 发明专利

JPH0894295A BULLET-PROOF PANEL 失效
公开(公告)号：JPH0894295A
公开(公告)日：1996-04-12
申请号：JP25164994
申请日：1994-09-21
申请人： NITTO BOSEKI CO LTD
发明人： KIKKO HIROKAZU , NANJO HISASHI , TOMOMITSU NAOKI
IPC分类号： F41H5/04 , B32B27/04 , B32B27/32
摘要： PURPOSE: To obtain pullet-proof performance and simultaneously light weight, strength, rigidity and safety by disposing glass fiber-reinforced plastic plates as front and rear surface materials, and providing a platelike body integrated through ultra-high molecular weight polyethylene sheet material in which a plurality of intermediate layers are thermally press-bonded with adhesive. CONSTITUTION: Front and rear surface materials 1, 7 are formed of fiber- reinforced plastic plates. An intermediate layer 4 in which ultra-high molecular weight polyethylene sheet materials are laminated by thermally press-bonding therebetween is interposed, the materials 1, 7 and the layer 7 are adhesively integrated by using elastic adhesive as adhesives 3, 5 to obtain a platelike body 9. Thus, the sheet material in which the layer 4 is interposed obtains bullet-proof performance, and the plastic plate of the materials 1, 7 is light, but effective to protect the strength, rigidity and the inner layer.

6. 发明专利

JPH07241922A APPARATUS AND METHOD FOR MOLDING FIBER-REINFORCED PLASTIC PIPE 失效
公开(公告)号：JPH07241922A
公开(公告)日：1995-09-19
申请号：JP5437594
申请日：1994-03-01
申请人： NITTO BOSEKI CO LTD
发明人： KIKKO HIROKAZU , HIRAYAMA NORIO , TOMOMITSU NAOKI
IPC分类号： F16L9/12 , B29C70/06 , B29D23/00 , B29K105/08
摘要： PURPOSE:To obtain a molded article with little difference in mechanical strength in the axial direction and in the circumferential direction and enable to stop temporarily feeding of a material to unnecessary parts such as an aperture by arranging a defoaming roller either in front of or back of a material feeding apparatus in the rotating axis direction on the inner face of a cylindrical frame. CONSTITUTION:A defoaming roller D is arranged either in front of or back of a material feeding apparatus C in the rotating axis direction on the inner face of a cylindrical frame A to perform impregnation and defoaming of a cut reinforceing fiber 5 fed from the material feeding apparatus C and a resin compsn. and defoaming is performed while the defoaming roller D is brought into contact with the inner face of the cylindrical frame A and is rotated. In addition, the defoaming roller D is freely rotatably supported on a rotating plate 13 and the rotating plate 13 is rotated in the horizontal direction by rotating a bar 12 for rotation being rotatable in the horizontal direction. In addition, the material feeding apparatus C is not supported by means of the rotating plate 13 and is fixed at the position. Therefore, the feeding direction of the reinforcing fiber 5 and the resin compsn. can be changed in the reverse direction by rotating half the rotating plate 13.

7. 发明专利

JPS63173625A MANUFACTURE OF FIBER REINFORCED RESIN CYLINDER 失效
公开(公告)号：JPS63173625A
公开(公告)日：1988-07-18
申请号：JP401387
申请日：1987-01-13
申请人： NITTO BOSEKI CO LTD
发明人： KIKKO HIROKAZU , NISHIZAKI AKIHIKO , ICHIJO TOSHIHIRO
IPC分类号： B29C39/10 , B29C53/58 , B29C70/06 , B29C70/08 , B29C70/34 , B29C70/48 , B29D23/00 , B29K105/08 , B29K105/20
摘要： PURPOSE:To produce a molded object with high strength, while causing impregnation of injected resin into base material to be effective by a method in which continuous fiber and clothlike material are mutually wound on a base material molded in between an outer mold and a core mold, and a laminated base material composed of a fiber layer obtained by above mentioned process, is used. CONSTITUTION:A continuous fiber layer 2 and a clothlike material layer 3 are mutually wound on a core mold 1, and thus a wound layer 4 is obtained. This wound layer 4 is arranged in an outer mold 5, and resin is injected under pressure from resin feeding holes 6, 7. Since the continuous fiber layer 2 and the clothlike material layer 3 are formed alternatively, the resin injected under pressure is fed with good fluidity. Since the injecting operation is easy and the impregnation property of the resin becomes good, the strength of the molded object is considerably improved. Disorder of the layers of the continuous fiber 2 in resin injection is remarkably prevented by the layers of the clothlike material 3.

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