JP3050682B2 - Synthetic resin hose and method of manufacturing the same - Google Patents
Synthetic resin hose and method of manufacturing the sameInfo
- Publication number
- JP3050682B2 JP3050682B2 JP4037022A JP3702292A JP3050682B2 JP 3050682 B2 JP3050682 B2 JP 3050682B2 JP 4037022 A JP4037022 A JP 4037022A JP 3702292 A JP3702292 A JP 3702292A JP 3050682 B2 JP3050682 B2 JP 3050682B2
- Authority
- JP
- Japan
- Prior art keywords
- hose
- synthetic resin
- resin portion
- circumferential direction
- hard resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/547—Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles, e.g. endless tubes
-
- 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
-
- 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
- B29C66/1142—Single butt to butt joints
-
- 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
- B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
- B29C66/1162—Single bevel to bevel joints, e.g. mitre joints
-
- 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
- B29C66/128—Stepped joint cross-sections
- B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
-
- 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
- B29C66/128—Stepped joint cross-sections
- B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
- B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
-
- 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
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
-
- 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
- B29C66/14—Particular design of joint configurations particular design of the joint cross-sections the joint having the same thickness as the thickness of the parts to be joined
-
- 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
- B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
-
- 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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7315—Mechanical properties
- B29C66/73151—Hardness
-
- 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
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
-
- 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
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- 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
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
-
- 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
-
- 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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7315—Mechanical properties
- B29C66/73151—Hardness
- B29C66/73152—Hardness of different hardness, i.e. the hardness of one of the parts to be joined being different from the hardness of the other part
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/004—Bent tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、合成樹脂製ホースおよ
びその製造方法に関する。The present invention relates to a synthetic resin hose and a method for producing the same.
【0002】[0002]
【従来の技術と発明が解決しようとする課題】熱可塑性
樹脂製中空体、例えば、ホースやダクトは種々の用途で
使用されている。例えば、自動車エンジンの吸気系など
ではダクトが使用されている。このような中空体におい
ては、相反する特性が要求される。すなわち、前記中空
体には、可撓性が要求される半面、中空形状を保持する
ため、高い機械的強度も要求される。2. Description of the Related Art Thermoplastic hollow bodies, such as hoses and ducts, are used in various applications. For example, ducts are used in intake systems of automobile engines and the like. In such a hollow body, conflicting properties are required. That is, the hollow body is required to have high mechanical strength in order to maintain a hollow shape on the half surface where flexibility is required.
【0003】このような中空体の製造方法として、特開
平3−26522号公報には、電磁誘導コイルを配した
成形型内に、接合面に金属粉を含む接着剤が塗布された
硬質樹脂製補強材を配設すると共に、軟質樹脂で形成さ
れたパリソンを成形型に収容してブロー成形し、電磁誘
導コイルに高周波電流を通電して、前記補強材と接合一
体化する方法が開示されている。[0003] As a method of manufacturing such a hollow body, Japanese Patent Application Laid-Open No. 3-26522 discloses a hard resin made by applying an adhesive containing metal powder to a joining surface in a mold provided with an electromagnetic induction coil. A method is disclosed in which a reinforcing material is provided, a parison formed of a soft resin is housed in a molding die, blow-molded, a high-frequency current is applied to an electromagnetic induction coil, and the reinforcing material is joined and integrated. I have.
【0004】しかし、この方法は、ブロー成形により中
空体を製造するので、得られた中空体の内面寸法精度が
低下する。また、下型内の半円筒状の補強材の内面に、
軟質樹脂のパリソンを収容して、他方の半円筒状の補強
材が収容された上型で型締めし、ブロー成形するので、
得られた中空体の内面には、前記補強材の軸方向両端部
に対応する箇所で段差部が生じ易い。そのため、中空体
の内面平滑性が低下する。However, in this method, since the hollow body is manufactured by blow molding, the dimensional accuracy of the inner surface of the obtained hollow body is reduced. Also, on the inner surface of the semi-cylindrical reinforcing material in the lower mold,
Since the soft resin parison is housed, the other half-cylindrical reinforcing material is housed in the upper mold and blow-molded,
On the inner surface of the obtained hollow body, a step is likely to occur at locations corresponding to both ends in the axial direction of the reinforcing material. Therefore, the inner surface smoothness of the hollow body is reduced.
【0005】さらに、他方の補強材が上型から落下し易
いので、上型に配される補強材の位置決めが煩雑化し、
中空体の生産性が低下する。特に、中空状補強材を複数
箇所に形成する場合には、作業性および生産性が著しく
低下する。Further, since the other reinforcing member is easily dropped from the upper mold, positioning of the reinforcing member disposed on the upper mold becomes complicated, and
The productivity of the hollow body decreases. In particular, when the hollow reinforcing material is formed at a plurality of locations, workability and productivity are significantly reduced.
【0006】従って、本発明の目的は、優れた可撓性と
機械的強をを併せ持ち、硬質樹脂部と軟質樹脂部とで構
成されていても、内面寸法精度に優れた合成樹脂製ホー
スを提供することにある。It is therefore an object of the present invention has excellent flexibility and combines the mechanical strength, be composed of a hard resin part and a soft resin part, Ho made excellent synthetic resin on the inner surface dimensional accuracy
It is to provide a nest.
【0007】本発明の他の目的は、前記の如き優れた特
性を有する合成樹脂製ホースの製造方法を提供すること
にある。Another object of the present invention is to provide a method for producing a synthetic resin hose having the above-mentioned excellent characteristics.
【0008】前記目的を達成するため、本発明者らは、
射出成形法によると寸法精度の高いホースが得られるこ
とに着目して、鋭意検討の結果、本発明を完成した。In order to achieve the above object, the present inventors have:
Focusing on the fact that a hose having high dimensional accuracy can be obtained by the injection molding method, the present inventors have made extensive studies and completed the present invention.
【0009】すなわち、本発明は、二次元的又は三次元
的に湾曲していると共に、周方向に形成された硬質樹脂
部と周方向に形成された軟質樹脂部とが少なくともその
内面において軸方向に交互に一体に形成されたホースで
あって、軸方向に分割された複数の分割部材を射出成形
により形成し、前記分割部材の周方向の接合端面を融着
一体化して形成した合成樹脂製ホースを提供する。ま
た、前記軟質樹脂部の少 なくとも1つは、蛇腹部に形成
されてよい。 That is, the present invention provides two-dimensional or three-dimensional
And the hard resin portion formed in the circumferential direction and the soft resin portion formed in the circumferential direction are at least the
Injection molding of a plurality of axially divided hoses integrally formed alternately in the axial direction on the inner surface
It is formed by, providing a circumferential synthetic resin hose formed by fusing integrated joining end face of the dividing member. Ma
And one even without less of the soft resin portion, forming a bellows portion
May be.
【0010】また、本発明は、前記ホースの製造方法も
開示する。この方法は、二次元的又は三次元的に湾曲し
ていると共に、周方向に形成された硬質樹脂部と周方向
に形成された軟質樹脂部とが少なくともその内面におい
て軸方向に交互に一体に形成されたホースの製造方法で
あって、ホースを軸方向に分割した複数の分割部材を射
出成形により成形し、複数の分割部材の周方向の接合端
面を、融着させる合成樹脂製ホースを製造する。[0010] The present invention also discloses a method of manufacturing the hose . This method can be curved in two or three dimensions.
The hard resin part formed in the circumferential direction and the circumferential direction
At least the inner surface of smell and the soft resin portion formed in the
A method of manufacturing a hose which is formed integrally with the alternately axially Te, a plurality of divided members obtained by dividing the hose in the axial direction is molded by injection molding, the circumferential direction of the joining ends of the plurality of divided members <br /> A surface is made of a synthetic resin hose to be fused.
【0011】以下、本発明を詳細に説明する。Hereinafter, the present invention will be described in detail.
【0012】図1は本発明の合成樹脂製ホースの一例を
示す概略斜視図であり、図2は図1に示すホースの製造
工程を示す概略斜視図である。FIG. 1 is a schematic perspective view showing an example of the synthetic resin hose of the present invention, and FIG. 2 is a schematic perspective view showing a manufacturing process of the hose shown in FIG.
【0013】合成樹脂製ホース1は、図1に示されるよ
うに、三次元状に湾曲していると共に、内周面が平滑な
円筒状であり、周方向に形成された硬質樹脂部2と軟質
樹脂部3とで構成されている。前記硬質樹脂部2と軟質
樹脂部3は、ホース1の軸方向に交互に形成されてい
る。As shown in FIG. 1, the synthetic resin hose 1 has a three-dimensionally curved shape, a smooth cylindrical inner peripheral surface, and a hard resin portion 2 formed in the circumferential direction. And a soft resin portion 3. The hard resin portions 2 and the soft resin portions 3 are formed alternately in the axial direction of the hose 1.
【0014】このようなホース1では、硬質樹脂部2に
より、ホース1に、高い機械的強度、剛性および強靭性
などを付与でき、軟質樹脂部3により、ホース1に高い
可撓性などを付与できる。そのため、ホース1は、機械
的特性および可撓性の双方の特性に優れる。また、軟質
樹脂部3により振動吸収性を高め、硬質樹脂部2により
耐負圧性を高めることができると共に、内周面が平滑で
あるため、内面寸法精度が高く、ホース1の中空部を流
れる流体の流動抵抗を小さくできる。さらに、硬質樹脂
部2をホース1の端部に形成する場合には、接続機器へ
の装着性、嵌合性を高めることができる。In such a hose 1, high mechanical strength, rigidity and toughness can be imparted to the hose 1 by the hard resin portion 2, and high flexibility and the like can be imparted to the hose 1 by the soft resin portion 3. it can. Therefore, the hose 1 is excellent in both mechanical properties and flexibility. Further, enhanced vibration absorbability by soft resinous portion 3, it is possible to increase the耐負-pressure by hard resin portion 2, since the inner peripheral surface is smooth, high internal surface dimensional accuracy, through the hollow portion of the hose 1 The flow resistance of the fluid can be reduced. Furthermore, in the case where the hard resin portion 2 is formed at the end of the hose 1, it is possible to enhance the fitting property and fitting property to the connection device.
【0015】また、硬質樹脂部2を薄肉化しても機械的
強度を確保できるので、軽量化できる。さらに、ホース
1の周方向に形成された硬質樹脂部2と軟質樹脂部3と
を分離し、それぞれリサイクルすることも容易である。Further, since the mechanical strength can be ensured even when the thickness of the hard resin portion 2 is reduced, the weight can be reduced. Further, the hard resin portion 2 and the soft resin portion 3 formed in the circumferential direction of the hose 1 can be easily separated and recycled.
【0016】このようなホース1は、図2に示されるよ
うに、軸方向に2分割された半円筒状の断面湾曲部材1
a,1bの周方向の端面を熱融着することにより製造で
きる。すなわち、周方向に硬質樹脂部2と軟質樹脂部3
とが形成された前記湾曲部材1a,1bは、それぞれ二
層射出成形法により形成されている。前記射出成形法に
より前記湾曲部材1a,1bを成形すると、ブロー成形
法よりも、内周面を含めて寸法精度の高い成形品が得ら
れる。また、射出成形に伴なって、硬質樹脂部2と軟質
樹脂部3とは接合一体化している。As shown in FIG. 2, such a hose 1 has a semi-cylindrical cross-section curved member 1 divided into two in the axial direction.
It can be manufactured by heat-sealing the circumferential end surfaces of a and 1b. That is, the hard resin portion 2 and the soft resin portion 3
Each of the curved members 1a and 1b formed as described above is formed by a two-layer injection molding method. When the curved members 1a and 1b are molded by the injection molding method, a molded product having higher dimensional accuracy including the inner peripheral surface can be obtained than by the blow molding method. Further, with the injection molding, the hard resin portion 2 and the soft resin portion 3 are joined and integrated.
【0017】また、断面湾曲部材1a,1bの周方向の
端面を熱融着により一体に接合すると、内周面が平滑な
前記ホース1が得られる。すなわち、断面湾曲部材1
a,1bの周方向には機械的強度の大きな硬質樹脂部2
が形成されているため、熱融着時に、断面湾曲部材1
a,1bの接合端面に圧力が作用しても、軟質樹脂部3
が溶融してホース1の内方へ膨出することがない。Further, when the circumferential end surfaces of the curved section members 1a and 1b are integrally joined by heat fusion, the hose 1 having a smooth inner peripheral surface is obtained. That is, the sectional curved member 1
a, hard resin portion 2 having high mechanical strength in the circumferential direction
Is formed, so that the cross-section curved member 1 is
a, 1b, even if pressure is applied to the joining end face.
Does not melt and swell inward of the hose 1.
【0018】なお、ホースは、前記実施例のように三次
元状に限らず、二次元状に湾曲していてもよい。また、
必要に応じて、硬質樹脂部及び軟質樹脂部の少なくとも
一方、好ましくは軟質樹脂部が蛇腹状であってもよい。The hose is tertiary as in the above embodiment.
The shape is not limited to the original shape, and may be two- dimensionally curved. Also,
If necessary, at least one of the hard resin part and the soft resin part, preferably the soft resin part, may have a bellows shape.
【0019】図3は本発明の合成樹脂製ホースの他の例
を示す概略断面図であり、図4は図3に示すホースの製
造工程を示す概略断面図である。FIG. 3 is a schematic sectional view showing another example of the synthetic resin hose of the present invention, and FIG. 4 is a schematic sectional view showing a manufacturing process of the hose shown in FIG.
【0020】この例では、二次元的に湾曲したホース1
1が示されている。このホース11は、それぞれ周方向
に形成された硬質樹脂部12と蛇腹状の軟質樹脂部13
aと他の軟質樹脂部13bとで構成され、軸方向に2分
割された半円筒状の断面湾曲部材11a,11bの周方
向の端面を、前記と同様に熱融着させることにより製造
できる。In this example, a two-dimensionally curved hose 1
1 is shown. The hose 11 has a hard resin portion 12 and a bellows-shaped soft resin portion 13 formed in the circumferential direction, respectively.
a and the other soft resin portion 13b, and can be manufactured by heat-sealing the circumferential end surfaces of the semi-cylindrical cross-section curved members 11a and 11b divided into two in the axial direction in the same manner as described above.
【0021】このような合成樹脂ホース11では、軟質
樹脂部13bが両端に形成されており、接続部でのシー
ル性を確保できると共に、軟質樹脂部13aが蛇腹状で
あるため、可撓性をさらに高めることができる。また、
蛇腹部により振動吸収性をさらに高めることができる。In such a synthetic resin hose 11, the soft resin portions 13b are formed at both ends, so that the sealing property at the connection portion can be ensured, and the soft resin portion 13a has a bellows shape, so that flexibility is improved. Can be even higher. Also ,
The snake abdomen it is possible to further improve the vibration absorption.
【0022】なお、少なくとも一方の端部に軟質樹脂部
が形成されている複数の断面湾曲部材の端面を融着させ
る場合、ホースの内径に対応した内面規制コアを端部に
挿入して熱融着させるのが好ましい。この場合、射出成
形された断面湾曲部材の内面平滑性が維持され、融着に
よる接続部における密着シール性が一層向上する。When the end faces of a plurality of cross-sectionally curved members having a soft resin portion formed on at least one end thereof are fused, an inner surface regulating core corresponding to the inner diameter of the hose is inserted into the end and heat fusion is performed. It is preferred to wear. In this case, the inner surface smoothness of the injection-molded cross-section curved member is maintained, and the sealing property at the connection portion by fusion is further improved.
【0023】なお、前記硬質樹脂および軟質樹脂の種類
は特に制限されないが、前記硬質樹脂としては、例え
ば、スチレン系ポリマー、ポリカーボネート、ポリプロ
ピレン、硬質の熱可塑性エラストマー(例えばスチレン
系エラストマー、オレフィン系エラストマー、ポリエス
テル系エラストマー)などの硬質で強靭な樹脂が例示さ
れ、軟質樹脂としては、スチレン系、オレフィン系、ポ
リエステル系の熱可塑性エラストマーなどが例示され
る。The type of the hard resin and the soft resin is not particularly limited. Examples of the hard resin include styrene-based polymers, polycarbonates, polypropylenes, and hard thermoplastic elastomers (for example, styrene-based elastomers, olefin-based elastomers, and the like). Hard and tough resins such as polyester-based elastomers) are exemplified. As soft resins, styrene-based, olefin-based, and polyester-based thermoplastic elastomers are exemplified.
【0024】また、硬質樹脂部と軟質樹脂部との幅は、
ホースの用途に応じて適当に選択できる。前記硬質樹脂
部と軟質樹脂部は、ホースの周方向に一体に形成されて
いればよく、前記各樹脂部は、螺旋状に形成されていて
もよい。さらには、前記硬質樹脂部および軟質樹脂部の
少なくとも一方の樹脂部が、ホースの周方向に形成され
ていればよい。図5は本発明のホースのさらに他の例を
示す要部断面斜視図である。The width between the hard resin portion and the soft resin portion is
It can be selected appropriately according to the application of the hose . The hard resin portion and the soft resin portion may be formed integrally in the circumferential direction of the hose , and each of the resin portions may be formed in a spiral shape. Furthermore, at least one of the hard resin portion and the soft resin portion may be formed in the circumferential direction of the hose . FIG. 5 is a sectional perspective view of a main part showing still another example of the hose of the present invention.
【0025】この例では、合成樹脂製ホース21の内面
側には、肉厚の薄い硬質樹脂部22が周方向に形成さ
れ、軟質樹脂部23は、硬質樹脂部22間に一体に形成
されていると共に、前記硬質樹脂部22の外面を覆って
いる。In this example, a thin hard resin portion 22 is formed on the inner surface side of the synthetic resin hose 21 in the circumferential direction, and a soft resin portion 23 is integrally formed between the hard resin portions 22. And covers the outer surface of the hard resin portion 22.
【0026】このような構造のホース21であっても、
前記硬質樹脂部22により機械的強度、剛性および強靭
性を確保できる。Even with the hose 21 having such a structure,
The hard resin portion 22 can secure mechanical strength, rigidity and toughness.
【0027】また、ホースは2つの断面湾曲部材により
形成する必要はなく、ホースの軸方向に分割された複数
の断面湾曲部材により形成されていてもよい。また、ホ
ースの断面形状は、円筒状に限らず、多角形状、楕円形
状などであってもよい。また、軸方向に分割された複数
の分割部材は、全体として、ホースの形状に対応してい
ればよい。生産性などを高めるためには、好ましいホー
スは、軸方向に2分割された分割部材により形成されて
いる。The hose does not need to be formed by two curved section members, but may be formed by a plurality of curved section members divided in the axial direction of the hose . In addition, ho
Over scan sectional shape is not limited to a cylindrical shape, a polygonal shape, may be an elliptical shape. Further, the plurality of divided members divided in the axial direction only need to correspond to the shape of the hose as a whole. To increase the productivity, although preferred Ho
Scan is formed by divided members divided into two in the axial direction.
【0028】前記分割部材は、硬質樹脂と軟質樹脂とを
用いて、硬質樹脂部を一次成形した後、軟質樹脂部を二
次成形して、両者を一体成形する方法などにより作製で
きる。なお、上記とは逆に、一次成形により軟質樹脂部
を形成し、二次成形により硬質樹脂部を形成してもよ
く、軟質樹脂と硬質樹脂の双方を同時に射出して成形し
てもよい。The divided member can be manufactured by a method in which a hard resin portion is first molded using a hard resin and a soft resin, and then the soft resin portion is secondarily molded, and the two are integrally molded. Contrary to the above, the soft resin portion may be formed by primary molding and the hard resin portion may be formed by secondary molding, or both the soft resin and the hard resin may be simultaneously injected and molded.
【0029】前記分割部材の周方向の接合端面は、種々
の融着方法、例えば、熱板融着、振動融着や超音波融着
などの方法により、融着させ接合一体化できる。The circumferential joint end face of the dividing member, various welding methods, for example, hot plate fusing, by a method such as vibration welding or ultrasonic welding, can be joined integrally fused.
【0030】分割部材の接合端面は、平坦状に限らず、
種々の形状に形成できる。図6は分割部材の他の例を示
す断面図である。The joining end face of the divided member is not limited to a flat shape,
It can be formed into various shapes. FIG. 6 is a sectional view showing another example of the dividing member.
【0031】この例では、分割部材としての断面湾曲部
材31a,31bには、それぞれ端面に隣設する側部
に、断面L字状の圧着代32a,32bが形成されてい
る。このような圧着代32a,32bを設けると、位置
決めを含めて接合端面の圧着作業が容易となる。前記圧
着代32a,32bは、融着により接合一体化した後、
必要に応じて除去してもよい。In this example, crimping margins 32a and 32b having an L-shaped cross section are formed on the side portions adjacent to the end surfaces of the cross-sectional curved members 31a and 31b as the dividing members. By providing such crimping allowances 32a and 32b, the crimping work of the joint end face including the positioning is facilitated. After the crimping margins 32a and 32b are joined and integrated by fusion,
It may be removed as needed.
【0032】圧着代は前記L字状に限らず板状などの適
当な形状に形成できる。また、圧着代は、適当な箇所に
形成することができ、例えば、断面湾曲部材の軸方向に
沿って連なっていてもよく、所定間隔毎に形成されいて
もよい。The crimping allowance is not limited to the L-shape, but may be formed in a suitable shape such as a plate. In addition, the crimping allowance can be formed at an appropriate location, for example, may be continuous along the axial direction of the cross-section curved member, or may be formed at predetermined intervals.
【0033】図7及び図8は分割部材のさらに他の例を
示す断面図である。FIGS. 7 and 8 are sectional views showing still another example of the dividing member.
【0034】図7に示す例において、分割部材としての
断面湾曲部材41a,41bの端面には、互いに嵌合可
能な凹凸部42a,42bが形成されている。また、図
8に示す例においては、断面湾曲部材51a,51bの
端面は、それぞれエッジ化され、互いに面接触する傾斜
面52a,52bが形成されている。In the example shown in FIG. 7, concave / convex portions 42a and 42b that can be fitted to each other are formed on the end surfaces of the cross-sectional curved members 41a and 41b as the dividing members. In the example shown in FIG. 8, the end surfaces of the cross-sectional curved members 51a and 51b are each edged, and inclined surfaces 52a and 52b that are in surface contact with each other are formed.
【0035】このような湾曲部材41a,41b,51
a,51bでは、接合端面の位置決めを確実に行なえる
と共に、接合端面の接触面積を大きくできるので、均一
な接合性を確保できる。Such bending members 41a, 41b, 51
In a and 51b, the positioning of the joining end face can be reliably performed, and the contact area of the joining end face can be increased, so that uniform joining properties can be secured.
【0036】なお、接合端面は、前記図7及び図8に示
される形状に限らず、種々の形状に形成できる。例え
ば、断面湾曲部材の端面には、軸方向に延びる凹凸部を
形成してもよく、ピン状凸部と凹部とを適所に形成して
もよい。また、断面湾曲部材の端面は、互いに面接触す
る楔状の断面形状を有していてもよい。The joining end face is not limited to the shapes shown in FIGS. 7 and 8, and can be formed in various shapes. For example, an uneven portion extending in the axial direction may be formed on an end surface of the curved section member, and a pin-shaped convex portion and a concave portion may be formed at appropriate positions. In addition, the end surfaces of the cross-sectional curved member may have a wedge-shaped cross-sectional shape that comes into surface contact with each other.
【0037】硬質樹脂部と軟質樹脂部は、必要に応じて
同一または異なる色に着色していてもよい。異なる色に
着色された樹脂を用いる場合には、複数色に着色された
中空成形品を製造できる。The hard resin portion and the soft resin portion may be colored in the same or different colors as required. In the case of using resins colored in different colors, hollow molded articles colored in a plurality of colors can be manufactured.
【0038】[0038]
【発明の効果】本発明の合成樹脂製ホースは、少なくと
も硬質樹脂部が周方向に形成された複数の分割部材の周
方向の接合端面を、融着一体化しているので、可撓性と
機械的強度の双方の特性を備えていると共に、内面寸法
精度に優れている。According to the synthetic resin hose of the present invention, at least the circumferentially joined end faces of the plurality of divided members having the hard resin portions formed in the circumferential direction are fused and integrated, so that flexibility and mechanical strength are improved. In addition to having both characteristics of target strength, it has excellent inner surface dimensional accuracy.
【0039】また、本発明の方法によれば、少なくとも
硬質樹脂部が周方向に形成された複数の分割部材を射出
成形により作製し、前記分割部材の接合端面を融着させ
るので、前記の如き優れた特性を有する合成樹脂製ホー
スを製造できる。According to the method of the present invention, a plurality of divided members having at least the hard resin portion formed in the circumferential direction are produced by injection molding, and the joining end surfaces of the divided members are fused to each other. Synthetic resin hoe with excellent properties
Vinegar can be produced.
【図1】本発明の合成樹脂製ホースの一例を示す概略斜
視図である。FIG. 1 is a schematic perspective view showing an example of a synthetic resin hose of the present invention.
【図2】図1に示すホースの製造工程を示す概略斜視図
である。FIG. 2 is a schematic perspective view showing a manufacturing process of the hose shown in FIG.
【図3】本発明の合成樹脂製ホースの他の例を示す概略
断面図である。FIG. 3 is a schematic sectional view showing another example of the synthetic resin hose of the present invention.
【図4】図3に示すホースの製造工程を示す概略断面図
である。FIG. 4 is a schematic sectional view showing a manufacturing process of the hose shown in FIG.
【図5】図5は本発明のホースのさらに他の例を示す要
部断面斜視図である。FIG. 5 is a cross-sectional perspective view of a main part showing still another example of the hose of the present invention.
【図6】図6は分割部材の他の例を示す断面図である。FIG. 6 is a cross-sectional view showing another example of the dividing member.
【図7】図7は分割部材のさらに他の例を示す断面図で
ある。FIG. 7 is a cross-sectional view showing still another example of the dividing member.
【図8】図8は分割部材のさらに他の例を示す断面図で
ある。FIG. 8 is a sectional view showing still another example of the dividing member.
1,11,21…合成樹脂製ホース 1a,1b,11a,11b,31a,31b,41
a,41b,51a,51b…断面湾曲部材 2,12,22…硬質樹脂部 3,13a,13b,23…軟質樹脂部1, 11, 21 ... synthetic resin hoses 1a, 1b, 11a, 11b, 31a, 31b, 41
a, 41b, 51a, 51b: Curved cross section member 2, 12, 22: Hard resin part 3, 13a, 13b, 23: Soft resin part
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) B29D 23/00 B29C 45/16 B29C 65/02 B29C 69/02 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B29D 23/00 B29C 45/16 B29C 65/02 B29C 69/02
Claims (3)
共に、周方向に形成された硬質樹脂部と周方向に形成さ
れた軟質樹脂部とが少なくともその内面において軸方向
に交互に一体に形成されたホースであって、軸方向に分
割された複数の分割部材を射出成形により形成し、前記
分割部材の周方向の接合端面を融着一体化して形成した
合成樹脂製ホース。 1. A two-dimensional or three-dimensional curved shape
Both are formed in the circumferential direction with the hard resin part formed in the circumferential direction.
Axially soft resin portion and at least the inner surface thereof which
Alternately a hose formed integrally with, a plurality of divided members divided in the axial direction is formed by injection molding, wherein
Circumferential <br/> synthetic resin hose formed by fusing integrated joining end face of the dividing member.
に形成されている請求項1記載の合成樹脂製ホース。2. The synthetic resin hose according to claim 1, wherein the hose is formed of a synthetic resin hose.
共に、周方向に形成された硬質樹脂部と周方向に形成さ
れた軟質樹脂部とが少なくともその内面において軸方向
に交互に一体に形成されたホースの製造方法であって、
ホースを軸方向に分割した複数の分割部材を射出成形に
より成形し、複数の分割部材の周方向の接合端面を、融
着させる合成樹脂製ホースの製造方法。3. When it is curved two-dimensionally or three-dimensionally.
Both are formed in the circumferential direction with the hard resin part formed in the circumferential direction.
Axially soft resin portion and at least the inner surface thereof which
Alternately method of manufacturing a hose which is formed integrally with,
A method of manufacturing a synthetic resin hose in which a plurality of divided members obtained by dividing a hose in an axial direction are formed by injection molding, and a joining end face in a circumferential direction of the plurality of divided members is fused.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4037022A JP3050682B2 (en) | 1992-01-27 | 1992-01-27 | Synthetic resin hose and method of manufacturing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4037022A JP3050682B2 (en) | 1992-01-27 | 1992-01-27 | Synthetic resin hose and method of manufacturing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05200903A JPH05200903A (en) | 1993-08-10 |
JP3050682B2 true JP3050682B2 (en) | 2000-06-12 |
Family
ID=12486030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4037022A Expired - Fee Related JP3050682B2 (en) | 1992-01-27 | 1992-01-27 | Synthetic resin hose and method of manufacturing the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3050682B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005050570B4 (en) * | 2005-10-21 | 2007-10-18 | Lisa Dräxlmaier GmbH | Process for the production of plastic mold or. Plastic hollow bodies |
JP4456085B2 (en) * | 2006-03-03 | 2010-04-28 | ゴムノイナキ株式会社 | Method for forming bellows duct |
DE102018206615A1 (en) * | 2018-04-27 | 2019-10-31 | Mahle International Gmbh | Pipe body for a fresh air system of an internal combustion engine |
-
1992
- 1992-01-27 JP JP4037022A patent/JP3050682B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH05200903A (en) | 1993-08-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20060151505A1 (en) | Fuel tank for motor vehicle and method for producing the same | |
EP0693652A2 (en) | Electric welding pipe joint | |
JPH10157738A (en) | Fuel container made of resin and production thereof | |
JP3050682B2 (en) | Synthetic resin hose and method of manufacturing the same | |
KR20000070130A (en) | Intake system of thermoplastic plastics | |
JP3797178B2 (en) | Plastic molded product | |
JP2006321309A (en) | Automobile fuel tank and its manufacturing method | |
JPH11179758A (en) | Synthetic resin hollow molded product and its production | |
JPH08252838A (en) | Method for coating molding of three-dimensional hollow molding | |
JP3012914B2 (en) | Hollow product made of synthetic resin by injection molding method and method for producing the same | |
EP1749639B1 (en) | Method for making plastic metal composite parts | |
JPH10315266A (en) | Resin molding hollow material | |
JPH0577337A (en) | Resin hose and manufacture thereof | |
JPH01316244A (en) | Blow molded product and its manufacture | |
JP4606154B2 (en) | Automotive fuel tank | |
JPS6357222A (en) | Manufacture of hollow body | |
JP3120842U (en) | Hollow molded product | |
JP3383020B2 (en) | Manufacturing method of hollow resin molded product | |
JP6984980B2 (en) | Semi-cracked body made of thermoplastic resin | |
JP6593888B2 (en) | Fuel tank pipe mounting structure | |
JP3562832B2 (en) | Resin hollow molded article and method for producing the same | |
JPH06123393A (en) | Manufacture of electric fusing joint | |
JP3622414B2 (en) | Manufacturing method of hose with protector | |
JP2000309030A (en) | Hollow body product made of synthetic resin | |
JPH08142114A (en) | Three-dimensional hollow molded product and coat-molding method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090331 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110331 Year of fee payment: 11 |
|
LAPS | Cancellation because of no payment of annual fees |