WO1994000286A1 - Resin hose connecting structure - Google Patents
Resin hose connecting structure Download PDFInfo
- Publication number
- WO1994000286A1 WO1994000286A1 PCT/JP1993/000581 JP9300581W WO9400286A1 WO 1994000286 A1 WO1994000286 A1 WO 1994000286A1 JP 9300581 W JP9300581 W JP 9300581W WO 9400286 A1 WO9400286 A1 WO 9400286A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hose
- diameter
- resin
- inner peripheral
- hose body
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1034—Manufacturing and assembling intake systems
- F02M35/10347—Moulding, casting or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14598—Coating tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5223—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
- B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
- B29C66/52293—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being external
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52297—Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10144—Connections of intake ducts to each other or to another device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10314—Materials for intake systems
- F02M35/10321—Plastics; Composites; Rubbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/20—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
- F16L47/24—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics for joints between metal and plastics pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
Definitions
- the present invention relates to a resin hose connection structure suitable as a connection structure for connecting a conductor hose, a filler hose, and the like to an opposing pipe body.
- This resin hose has a lower specific gravity and can be made lighter than a rubber hose, and it can be composed of a single piece with a soft part and a hard part. It has advantages such as a high degree of freedom.
- a hard resin material is used for the part that requires hardness
- a soft material is used for the part that requires softness.
- the hard portion and the soft portion can be integrally formed using the material.
- metal pipes are used for parts where hardness is required
- rubber hoses are used for parts where other soft flexibility is required, and both are assembled. .
- the soft part and the hard part can be formed as an integrally molded product, so that the number of parts can be reduced and cost can be reduced.
- a high degree of design freedom in terms of shape and the like means that it can withstand a negative pressure sufficiently, and that there are few restrictions on its shape.
- a rubber hose for example, if the cross section is flat, the same portion is easily deformed when negative pressure or the like is applied. For this reason, rubber hoses have a lower degree of freedom in design, such as shape, than resin hoses.
- the D-molding method is preferably used as the molding method.
- this blow molding method generally, a cylindrical or bag-shaped parison is inflated by blowing air and is brought into close contact with the inner surface of a molding die to form a predetermined shape. For this reason, the outer surface of the molded product can be accurately molded into a predetermined shape by the molding die.
- the inner surface of the molded product is formed in a free state without being molded on the mold surface, it is inevitable that the shape and dimensional accuracy deteriorate.
- connection portion is polished and finished to a predetermined shape and dimensions.
- the inventor formed a hose body 100 by blow molding a thermoplastic resin, and set the hose body 100 in a mold 102 for molding.
- Invented a method of injection molding a cylindrical connection part (here, the axial end part) 104 with the mating pipe body, and applied for the prior patent application (Japanese Patent Application No. 3-39114). No. 5).
- the inner surface of the connection portion can be formed into a predetermined shape and dimensions together with the hose molding, and it is not necessary to grind the inner surface of the connection portion after the hose is formed unlike the conventional case. Therefore, in the method of the present invention, not only the polishing step can be omitted, but also a cleaning step for removing the remaining polishing powder is not required, and the number of steps can be reduced and the cost can be reduced. . Further, according to the method of the present invention, the inner surface of the connection portion can be formed with higher accuracy than the case where the inner surface of the connection portion is polished. For this reason, for example, a metal pipe The reliability of the sealing performance when the hand-side tube is connected is further improved.
- the hose body can be formed of a hard resin material and the connection portion can be formed of a soft resin material.
- a negative pressure acts on the hose during use, and if the hose body is formed of a soft material, the hose body is deformed and the cross section is reduced. This increases the pressure loss of air through the hose and reduces the amount of air that passes, causing incomplete combustion of the engine.
- the entire hose is formed of a hard material to prevent this, the sealing performance will be impaired when the end is joined to the mating tube.
- the hose body is made of a hard material and the joint is made of a soft material according to the preceding invention, mechanical strength such as negative pressure resistance can be imparted to the hose, while the sealability of the connection part is also improved. be able to.
- a crack may be generated at the connecting portion 104 or the crack may progress, and there is a possibility that the connection may be broken.
- connection structure of the resin hose comprises a single-molded hose body made of a thermoplastic resin having at least an end portion, and a soft thermoplastic resin formed integrally with the end portion of the hose body.
- a resin hose having a connection portion having a coaxial fitting inner peripheral surface having the same or larger inner peripheral diameter as the inner peripheral diameter of the end of the hose body;
- a ring-shaped ring contact surface which is formed of a structural material harder than the soft thermoplastic resin and has a smaller outer diameter at the distal end portion and at the distal end side, and the resin hose behind the ring contact surface.
- a mating tubular body having a tubular insertion end inserted and engaged with a connection portion of the resin hose having a fitting outer peripheral surface fitted with the fitting inner peripheral surface,
- the ring contact surface of the tubular insertion end of the mating tube contacts the inner peripheral end of the resin hose body, and the fitting outer peripheral surface of the tubular insertion end corresponds to the connecting portion.
- the resin hose and the mating tube are connected and fixed by fitting with the fitting inner peripheral surface.
- connection structure of the present invention since the mating tube is fitted to the end of the hard hose body, that is, a soft connecting portion of a material is formed between the end of the hard hose body and the mating tube. Since there is virtually no intervening state, when a bending force or the like is applied to the hose, the phenomenon that the hose bends greatly in the middle soft part does not occur, and the bending force is applied evenly to the entire hose. Become.
- connection made of a soft resin material is not directly exposed to a predetermined fluid such as gas from the gasoline engine flowing through the hose, so the life of the connection is shortened by the action of these fluids. Can be prevented.
- connection portion made of the soft resin material is directly connected to the gasoline.
- the connection structure of the present invention does not directly expose the connection portion made of a soft resin material to gasoline, so that the gasoline permeation amount can be suppressed low.
- the soft resin material is inferior in oil resistance and blow gas resistance as compared with the hard resin material.
- the inner surface of the connection is not directly exposed to these oils and boubai gas, so that deterioration due to them can be suppressed.
- a connecting portion having a fitting inner peripheral surface having an inner peripheral diameter larger than the inner peripheral diameter of the inner peripheral surface of the hose main body is formed coaxially on the hose main body.
- this structure can save expensive soft resin material and has the advantage of reducing hose cost.
- FIG. 1 is a view of an embodiment of the hose connection structure of the present invention.
- FIG. 2 is a view showing the overall appearance of the hose of FIG.
- FIG. 3 is a view of another embodiment of the present invention.
- FIG. 4 is a view of still another embodiment of the present invention.
- FIG. 5 is a view of still another embodiment of the present invention.
- FIG. 6 is a view of still another embodiment of the present invention.
- FIG. 7 is a diagram of still another embodiment of the present invention.
- FIG. 8 is a view of still another embodiment of the present invention.
- FIG. 9 is a view of still another embodiment of the present invention.
- FIG. 10 is an explanatory diagram of the problem to be solved by the present invention.
- reference numeral 10 denotes a resin hose used as an air duct hose or the like.
- This resin hose is injection-molded with the hose body 12 formed by molding a hard thermoplastic resin into a mold, and the hose body 12 is set in a mold, and simultaneously joined integrally to the hose body 12 And a connecting portion 14 made of a soft thermoplastic resin.
- a bellows portion 15 for providing flexibility to the hose body 12 is provided at a central portion thereof.
- the bellows 15 may be made of soft resin in order to increase the flexibility of the bellows 15.
- a polypropylene resin having a mouthwell hardness of 94 (R scale) (for example, EC-9B manufactured by Mitsubishi Yuka Co., Ltd.) is connected.
- the soft resin material for the part 14 include a polystyrene resin having a Shore A hardness of about 5 and a PDM polymer alloy (for example, Santoprene 101-75 manufactured by Monsanto Japan Limited).
- Figure 1 shows the cross-sectional structure around the end of the hose 10.
- a large-diameter portion 16 is formed at the end of the hose body 12
- a radially enlarged inner peripheral surface 18 is formed on the inside thereof.
- the cylindrical connection portion 14 is formed with a cylindrical protrusion 20 extending in the axial direction, and the protrusion 20 is stacked and integrated so as to cover the enlarged inner circumferential surface 18.
- the outer diameter of the connection portion 14 is made equal to the outer diameter of the large diameter portion 16 on the hose body 12 side, while the inner diameter is larger than the inner diameter of the hose body 12.
- the entire inner peripheral surface of the connecting portion 14 is formed as a fitting inner peripheral surface 22 having an annular cross section.
- a metal tube 24 constituting a mating tube is fitted into the tube hole defined by the fitting inner peripheral surface 22 through an opening of the connection portion 14, and the tip is made of a hard resin material.
- the end of the step 32 of the hose body 12 is abutted.
- the hose 10 and the metal pipe 24 on the other side are fixed and connected by being tightened by the clamp member 19 in the clamp groove 17 formed on the outer peripheral surface side of the connection portion 14.
- the ring-shaped tip surface of the metal pipe 24 constitutes the ring contact surface of the present invention
- the outer peripheral surface of the tip portion of the metal pipe 24 constitutes the fitting outer peripheral surface of the present invention.
- the clamp member 19 has a band 21 and a fastening portion 23.
- the fastening portion 23 is tightened with a bolt or the like, the band 21 is reduced in diameter, and the connecting portion 14 To the inside.
- this clamp member 19 is merely an example, and other various clamp members can be used.
- the inner diameter of the hose body 12 is equal to the inner diameter of the metal pipe 24 on the other side, and their inner peripheral surfaces are flush with each other. Therefore, the fluid can flow smoothly through the hose body 12 and the metal pipe 24.
- the hard metal pipe 24 is directly in contact with the end surface of the step portion 32 of the hose body 12 made of a hard resin material. Therefore, when a compressive force acts between the resin body and the metal pipe 24, it can withstand a relatively large compressive force. Further, since the large diameter portion 16 on the side of the hose body 12 is provided, it can withstand relatively large vibration and bending force applied to the hose 10. Further, vibration and bending force are effectively absorbed by the bellows portion 15 at the center of the hose body 12, and no large strain or local stress concentration occurs at the connection portion 14 made of a soft resin material. As a result, the durability life of the hose 10 is improved.
- connection portion 14 since the inner peripheral surface of the connection portion 14 is not directly exposed to a predetermined fluid such as provision gas, gasoline or other oil flowing through the inside of the hose, deterioration due to their chemical action is prevented. However, this also improves the life.
- a predetermined fluid such as provision gas, gasoline or other oil flowing through the inside of the hose
- connection structure between the hose 10 and the metal pipe 24 can be various structures other than the above example.
- FIG. 3 shows a specific example.
- the example in FIG. 3 (A) shows the connecting portion 1 4 covering the outer peripheral surface of the end of the hose body 1 2 and having the same inner diameter as the outer diameter of the outer peripheral surface. Is injection molded on a straight plate.
- the inner peripheral surface of a portion of the connection portion 14 that protrudes from the hose body 12 in the axial direction is a fitting inner peripheral surface 22.
- the metal pipe 24 is fitted into the fitting inner peripheral surface 22, and the end surface thereof comes into contact with the end surface of the hose body 12.
- connection portion 14 is formed by injection molding so that the distal end portion of the end surface of the hose body 12 is covered.
- a step 26 is formed in the connection portion 14, and the step 26 covers the distal end portion of the end surface of the hose body 12 and is welded to each other and integrated.
- the inner peripheral surface of the portion of the connecting portion 14 protruding from the hose body 12 is a mating inner peripheral surface 22 smaller in diameter than the outer diameter of the hose body 12, and the outer peripheral surface of the metal pipe 24 here Abuts.
- the corner 1 28 of the end of the molded hose body 12 is cut off, and then set in a molding die to connect the joint 14. It is an injection molding.
- a fitting inner peripheral surface 22 having the same inner diameter as the outer diameter of the cut portion is formed inside a portion of the connecting portion 14 protruding from the hose body 12, and a metal pipe 24 is fitted and mounted therein.
- connection part 14 has an outer diameter equal to the outer diameter of the hose body 12.
- a fitting inner peripheral surface 22 is formed inside the portion of the connecting portion 14 that protrudes from the hose body 12 in the axial direction, and the metal vibrator 24 is fitted and fixed here.
- FIG. 4 and FIG. 5 show still another embodiment of the present invention.
- FIG. 4 (B) includes the resin hose 10 and the metal pipe 24 shown in FIG. 4 (A).
- the end of the hose body 12 constituting the resin hose 10 is formed of an enlarged diameter portion having a stepped portion 33 whose inner peripheral diameter continuously increases.
- the connecting portion 14 is welded to the surface on the centrifugal side of the step portion 33 of the hose body 12, the inner peripheral surface and the end surface of the enlarged diameter portion, and the inner peripheral diameter of the hose body 12 is large. It is formed to have a fitting inner peripheral surface 22 with a diameter.
- a ring-shaped ridge 30 is formed at the tip of the metal pipe 24 so as to protrude in the circumferential direction and to make a round in the circumferential direction.
- the inclined surface on the tip side of the ridge 30 is the present invention.
- the metal pipe 24 is inserted into the connection portion 24, and the outer peripheral surface on the distal end side of the metal pipe 24 is fitted to the inner peripheral surface 22, and the ridge 30 is formed on the step of the hose body 12. It is brought into contact with the part 32, and the clamp is fixed by the clamp member 19 in this state.
- the outermost diameter of the most protruding portion of the ridge 30 is larger than the inner diameter of the fitting inner peripheral surface 22.
- the portion of the fitting inner peripheral surface 22 that comes into contact with the ridge 30 is elastically deformed, and the inner peripheral surface is deformed to have a larger diameter. ing. Therefore, the hose 10 and the metal pipe 24 are formed in such a manner that the protruding portion of the ridge 30 in the metal pipe 24 toward the radially-distal side is partially cut into the inside of the connection portion 14 made of a soft resin material. Will be connected. Also, when the ridge 30 of the metal pipe 24 is inserted along the fitting inner peripheral surface 22 of the connection portion 14, the ridge 30 temporarily spreads the fitting inner peripheral surface 22. To enter.
- the same resin hose 12 as that shown in FIG. 4 (A) is used as the resin hose 12 and the metal pipe 24 is slightly modified.
- the tubular metal pipe 24 is formed by forming a cylindrical small-diameter portion 34 having a small outer diameter on the distal end side of the ridge 30.
- the outer peripheral surface of the small diameter portion 34 is fitted with the inner peripheral surface of the hose body 12.
- the arrow in the figure indicates the location of the clamp by the clamp member (the same applies to the following examples).
- a tapered portion 36 corresponding to the ring-shaped contact surface of the present invention is formed instead of the ridge 30 of the metal pipe 24.
- a small-diameter portion 34 is formed on the tip side of the tapered portion 36. The tapered portion 36 is brought into contact with the step portion 33 of the hose body 12, while the small diameter portion 34 is fitted on the inner peripheral surface of the hose body 12.
- FIGS. 4 (E) and 4 (F) use other different metal pipes 24.
- the metal pipe 24 is formed by forming a small ring-shaped ridge 37 at a portion slightly narrowed at the tip and slightly on the other end side from the tip. The outer diameters of both sides of the ridge 37 are equal.
- the operation of the ridge 37 is completely different from that of the ridge 30 shown in FIG. 4B, and the abutting portion of the fitting inner peripheral surface 22 of the connection portion 14 is formed. It spreads and pushes in, enhancing the sealing action of the abutting part and effectively acting as a hose 10 slip-off prevention part.
- the ring contact surface of the present invention corresponds to a slightly narrowed ring-shaped inclined surface at the forefront of the metal pipe 24 of the present embodiment.
- the ridge 37 in FIG. 4 (E) is the same as the ridge 37 in FIG. 4 (F) except for the distance from the tip of the pipe 14.
- the outer peripheral surfaces on both sides of the ridge 37 constitute the fitting outer peripheral surface of the present invention.
- FIGS. 5 (G) and 5 (H) show that the end of the hose body 12 is slightly expanded like a trumpet, and the tip of the metal pipe 24 fitted to the fitting inner peripheral surface 22 is shown. This is an example in which a ring-shaped ridge 30 is brought into contact with the expanded end 38.
- Fig. 5 (I) shows an example in which the ridge 30 of the metal pipe 24 is brought into contact with the expanded end 38, and the small diameter portion 34 is fitted to the inner peripheral surface of the hose body 12. I have.
- FIG. 6 shows still another embodiment of the present invention.
- the end of the hose body 12 constituting the resin hose 10 is formed of an enlarged diameter portion having a stepped portion 33 whose inner peripheral diameter continuously increases.
- the connecting portion 14 is welded to the surface of the step portion 3 3 of the hose body 12, the inner peripheral surface and the end surface of the enlarged diameter portion, and has the same diameter as the inner peripheral diameter of the hose body 12. It is formed to have a peripheral surface 22.
- the metal pipe 24 of the embodiment shown in FIG. 6 (B) has a ring-shaped ridge 30 formed at the forefront of a metal pipe having the same outer diameter as the fitting inner peripheral surface 22.
- the outer diameter of the top of the ridge 30 is larger than the inner diameter of the fitting inner peripheral surface 22.
- the metal pipe 24 is inserted into the connection portion 14, and the ridge 30 advances in the axial direction while temporarily expanding the inner peripheral surface of the connection portion, and the step portion 3 3 of the hose body 10 is formed. Stops in contact with.
- FIG. 6 (C) shows a configuration in which a small-diameter portion 34 is provided at the tip of the metal pipe 24 of FIG. 6 (B).
- the outer diameter of the small diameter portion 34 is the same as the inner diameter of the hose body 12 and is fitted to the inner circumferential surface of the hose body 12.
- Fig. 6 (D) shows a metal pipe 24 provided with a semicircular rib-shaped portion 40 at the tip. It is.
- the rib-shaped portion 40 has the same function as the ring-shaped ridge 30.
- FIG. 6 (E) shows still another metal pipe 24.
- the metal pipe 24 has a plurality of ring-shaped projections 42 having a saw-like cross-section on the outer peripheral surface thereof and extending around the outer periphery at intervals in the axial direction.
- the inclined surface of the foremost projection 42 forms the ring contact surface of the present invention.
- the ridges 30, the rib-like portions 40, or the protrusions 42 of the metal pipes 24 have to be radially outward.
- the bulging portion is in a state of being cut into the fitting inner peripheral surface 22 of the connecting portion 14 made of a soft resin material. Then, based on the bite, the internal fluid is effectively prevented from entering between the connection portion 14 and the metal pipe 24 from between the hose body 12 and the metal pipe 24.
- these ridges 30. Rib-like portions 40 and projections 42 also function to effectively prevent the metal pipe 24 and the metal hose 10 from coming off in the clamped state by the clamp member.
- the embodiment shown in FIG. 7 has a feature in the resin hose 10.
- the resin hose 10 shown in FIG. 7 (A) has a large-diameter portion 16 having a stepped portion 33 at which the inner diameter of the hose body 12 continuously increases, and a connection portion 14. Is formed so as to have a fitting inner peripheral surface 22 which is welded to the end face and the outer peripheral surface of the large diameter portion 16 and has the same diameter as the inner peripheral diameter of the large diameter portion 16.
- the metal pipe 24 shown in the embodiment of FIG. 7 (B) and FIG. 7 (C) is obtained by purging the tip of the metal pipe having the same outer diameter as the inner diameter of the fitting inner peripheral surface 22. It is manufactured by forming a ring-shaped ridge 30.
- the metal pipe 24 in Fig. 7 (B) has a short cylindrical portion at the tip end of the ridge 30.
- the ring-shaped slope at the tip end of the ridge 30 is the hose body 1 It is in contact with the end face of the large diameter portion 16 of 2. Therefore, the tip side ring-shaped slope of the ridge 30 corresponds to the ring contact surface of the present invention.
- the metal pipe 24 in Fig. 7 (C) has a long cylindrical portion at the distal end of the ridge 30.
- the ring-shaped inclined surface at the distal end of the cylindrical portion is the hose body 1. It is in contact with the step part 3 3 of 2. Therefore, the ring-shaped inclined surface at the tip of the cylindrical portion corresponds to the ring contact surface of the present invention.
- the ridge 30 has the same function as the ridge 37 shown in FIG.
- the ring-shaped inclined surface at the tip of the cylindrical portion can be brought into contact with the step portion 33 of the hose body 12.
- the metal pipe 24 comes in contact with the hose body 12 at two locations with an interval in the axial direction.
- the ring-shaped inclined surface at the distal end of the ridge 30 and the ring-shaped inclined surface at the distal end of the cylindrical portion are both the ring contact surfaces of the present invention.
- the hose body 12 of the resin hose 10 has a middle diameter portion 4 4 having a first step portion 4 6 and a large diameter portion 16 having a step portion 3 3 at the end of the middle diameter portion 4 4.
- the connecting portion 14 is formed so as to have a fitting inner peripheral surface 22 having the same diameter as the inner peripheral diameter of the large diameter portion 16 in a state where the connection portion 14 is welded to the end face and the outer peripheral surface of the large diameter portion 16.
- the protruding ridge 30 of the metal pipe 24 is brought into contact with the step portion 33 of the large diameter portion 16 or the tip of the metal pipe 24 is brought into contact with the step portion 46 of the medium diameter portion 44. It is intended to make contact.
- FIG. 8 shows still another embodiment of the present invention.
- 8 (B), 8 (C), and 8 (D) show that the inner peripheral surface of the hose body 12 on the distal end side is slightly ring-shaped as shown in FIG. 8 (A).
- a recessed portion 48 having an enlarged diameter is formed, and a ridge 30 or a rib-shaped portion 40 of the metal pipe 24 is snap-fitted (elastically fitted) here.
- FIG. 8 (E) shows an example in which the concave portion 48 and the ridge 30 are snap-fitted, and the clamp member 19 clamps near the fitting portion.
- a concave portion 48 and a step portion 33 are formed in the hose body as shown in FIG. 8 (F) to elastically deform the H concave portion 48 and the ridge 30 etc.
- connection portion is formed at the longitudinal end of a hose to connect with a counterpart pipe body as in the above example.
- a connection part is provided on the side of the It can be configured in various forms based on the knowledge of the contractor, as long as it does not deviate from the gist, for example, it can be applied to the case where the connection is made with the counterpart pipe in the section.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Manufacturing & Machinery (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/199,196 US5568944A (en) | 1992-06-29 | 1993-04-30 | Resin hose connecting structure |
DE69312040T DE69312040T2 (de) | 1992-06-29 | 1993-04-30 | Verbindungsstruktur für kunstharzschlauch |
EP93911961A EP0606483B1 (en) | 1992-06-29 | 1993-04-30 | Resin hose connecting structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4/194779 | 1992-06-29 | ||
JP19477992A JP3263981B2 (ja) | 1991-06-29 | 1992-06-29 | 樹脂ホースの接続構造 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994000286A1 true WO1994000286A1 (en) | 1994-01-06 |
Family
ID=16330120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000581 WO1994000286A1 (en) | 1992-06-29 | 1993-04-30 | Resin hose connecting structure |
Country Status (4)
Country | Link |
---|---|
US (1) | US5568944A (ja) |
EP (1) | EP0606483B1 (ja) |
DE (1) | DE69312040T2 (ja) |
WO (1) | WO1994000286A1 (ja) |
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DE4430869C1 (de) * | 1994-08-31 | 1996-03-14 | Geiger Plastic Verwaltung | Hohlkörper, insbesondere Rohr, mit integrierter Dichtung |
FR2738893B1 (fr) * | 1995-09-18 | 1997-11-21 | Hutchinson | Procede de realisation d'un embout, embout et connecteur realises par ce procede et circuit comportant un tel connecteur |
GB2314396B (en) * | 1996-06-21 | 1999-12-22 | British Gas Plc | Pipe liner |
DE19745192C2 (de) * | 1997-10-13 | 2001-04-19 | Mann & Hummel Filter | Rohrverbindung und ein Verfahren zu deren Herstellung |
FR2787549B1 (fr) * | 1998-12-16 | 2001-01-19 | Nobel Plastiques | Element tubulaire de conduite comportant une partie longitudinale rigide et une partie longitudinale souple en une seule piece |
JP2002089762A (ja) * | 1999-09-28 | 2002-03-27 | Tokai Rubber Ind Ltd | 接続構造体 |
CA2343585A1 (en) * | 2000-08-07 | 2002-02-07 | Tokai Rubber Industries, Ltd. | Fuel hose connection structure and fuel hose |
JP2003056782A (ja) * | 2001-08-09 | 2003-02-26 | Nissan Motor Co Ltd | 樹脂製コネクタと樹脂製チューブの接続構造 |
DE20113222U1 (de) * | 2001-08-21 | 2001-11-15 | Truplast Kunststofftechnik | Schlauchleitung mit Muffe |
AR039223A1 (es) * | 2003-04-02 | 2005-02-09 | Eduardo Felipe May | Un dispositivo para la union por termofusion de un tubo termoplastico que incluye una capa metalica intermedia entre dos capas termoplasticas, con una conexion termoplastica |
ITMO20030244A1 (it) * | 2003-09-05 | 2005-03-06 | Gambro Lundia Ab | Camera sangue per circuiti extracorporei e metodo per fabbricarla. |
US7559911B2 (en) | 2003-09-05 | 2009-07-14 | Gambro Lundia Ab | Blood chamber for extracorporeal blood circuits and a process for manufacturing the blood chamber |
JP4428111B2 (ja) * | 2004-03-30 | 2010-03-10 | 東海ゴム工業株式会社 | 流体輸送用ホースの接続構造 |
DE102006011617A1 (de) * | 2006-03-14 | 2007-09-20 | Norma Germany Gmbh | Verbindungsanordnung zur Verbindung eines Rohrstutzens mit einem Schlauch |
US7785514B2 (en) * | 2006-05-18 | 2010-08-31 | Mccarthy Peter T | Snorkels, flexible tubes, mouthpieces and methods |
US7614378B2 (en) * | 2007-03-27 | 2009-11-10 | Denso International America, Inc. | Flexible seal and molded rigid chamber |
US8251036B2 (en) * | 2007-03-27 | 2012-08-28 | Denso International America, Inc. | Flexible seal and molded rigid chamber |
US9149387B2 (en) * | 2008-09-04 | 2015-10-06 | Novartis Ag | Varying material properties of a single fluidic line in ophthalmology tubing |
US8631831B2 (en) * | 2008-09-04 | 2014-01-21 | Alcon Research, Ltd. | Multi-compliant tubing |
GB0911876D0 (en) * | 2009-07-09 | 2009-08-19 | Airbus Operations Ltd | Pipe coupling device |
DE102010049015B4 (de) * | 2010-10-21 | 2013-12-05 | Johnson Controls Hybrid And Recycling Gmbh | Kühlflüssigkeits-Verteilerschlauch und Batterieanordnung |
KR101326839B1 (ko) * | 2011-12-07 | 2013-11-11 | 현대자동차주식회사 | 자동차의 에어 인테이크 호스 및 그 제작방법 |
DE102012010363B4 (de) * | 2012-05-28 | 2016-09-29 | Etimex Technical Components Gmbh | Hohlkörperverbund mit zwei Hohlkörpern |
CN102849317A (zh) * | 2012-09-07 | 2013-01-02 | 深圳市通产丽星股份有限公司 | 多层无缝软管及其制备方法 |
US10006417B2 (en) * | 2014-08-06 | 2018-06-26 | Toledo Molding 7 Die, Inc. | Adaptive air intake sealing joint |
DE102016206915A1 (de) * | 2016-04-22 | 2017-10-26 | Deere & Company | Baugruppe zum Anschluss einer Leitung |
EP3597250B1 (en) * | 2017-01-30 | 2023-02-22 | GlobalMed, Inc. | Heated respiratory hose assembly |
US11813403B2 (en) | 2017-01-30 | 2023-11-14 | Globalmed, Inc. | Heated respiratory hose wiring |
US11839719B2 (en) | 2017-01-30 | 2023-12-12 | Globalmed, Inc. | Heated respiratory hose wiring |
JP6792483B2 (ja) | 2017-02-23 | 2020-11-25 | 三桜工業株式会社 | 配管継手及び樹脂チューブ組立体 |
JP7382149B2 (ja) * | 2019-03-19 | 2023-11-16 | 住友理工株式会社 | 多層チューブ |
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- 1993-04-30 US US08/199,196 patent/US5568944A/en not_active Expired - Fee Related
- 1993-04-30 EP EP93911961A patent/EP0606483B1/en not_active Expired - Lifetime
- 1993-04-30 DE DE69312040T patent/DE69312040T2/de not_active Expired - Fee Related
- 1993-04-30 WO PCT/JP1993/000581 patent/WO1994000286A1/ja active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
DE69312040D1 (de) | 1997-08-14 |
EP0606483A1 (en) | 1994-07-20 |
EP0606483A4 (en) | 1995-05-17 |
US5568944A (en) | 1996-10-29 |
EP0606483B1 (en) | 1997-07-09 |
DE69312040T2 (de) | 1998-01-08 |
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