JPH06221481A - Hose - Google Patents
HoseInfo
- Publication number
- JPH06221481A JPH06221481A JP5009267A JP926793A JPH06221481A JP H06221481 A JPH06221481 A JP H06221481A JP 5009267 A JP5009267 A JP 5009267A JP 926793 A JP926793 A JP 926793A JP H06221481 A JPH06221481 A JP H06221481A
- Authority
- JP
- Japan
- Prior art keywords
- hose
- hose part
- mating member
- seal piece
- axial direction
- 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.)
- Pending
Links
Landscapes
- Joints Allowing Movement (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はホースに関する。本発明
に係るホースはガソリン燃料等を送給する燃料ホースに
適するThis invention relates to hoses. The hose according to the present invention is suitable as a fuel hose for feeding gasoline fuel or the like.
【０００２】[0002]
【従来の技術】近年、図３に示す様に、ゴムを基材とす
る外ホース部１００と、外ホース部１００に略同軸的に
保持された樹脂を基材とするバリヤ性が高い内ホース部
２００とで構成されたホースが開発されている。このも
のでは、相手部材３００を接続する際、相手部材３００
の外周面と内ホース部２００の端部２０１の内周面との
間に、別部品であるゴム製の筒状のシール部材４００を
介装する必要があった。2. Description of the Related Art Recently, as shown in FIG. 3, an outer hose 100 having a rubber base material and an inner hose having a base material made of a resin substantially coaxially held by the outer hose portion 100 have a high barrier property. A hose composed of part 200 has been developed. With this, when connecting the mating member 300, the mating member 300
It was necessary to interpose a rubber-made cylindrical seal member 400, which is a separate component, between the outer peripheral surface of the above and the inner peripheral surface of the end portion 201 of the inner hose portion 200.
【０００３】[0003]
【発明が解決しようとする課題】本発明は上記した実情
に鑑みなされたものであり、その目的は、シール構造を
改良したホースを提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a hose having an improved seal structure.
【０００４】[0004]
【課題を解決するための手段】本発明のホースは、外端
部をもつゴムを基材とする外ホース部と、外ホース部に
略同軸的に保持され相手部材が嵌合する内端部をもつ樹
脂を基材とする内ホース部とで構成され、外ホース部の
外端部は、内ホース部の内端部の内面側に折り曲げられ
ると共に相手部材と内ホース部の内端部との境界域をシ
ールする筒状の折曲シール片を備えていることを特徴と
するものである。SUMMARY OF THE INVENTION A hose of the present invention comprises an outer hose having an outer end and made of rubber as a base material, and an inner end to which a mating member is fitted and held substantially coaxially with the outer hose. The inner end of the inner hose is formed of a resin having a base material, the outer end of the outer hose is bent toward the inner surface of the inner end of the inner hose, and the inner end of the inner hose is mated with the mating member. It is characterized in that it is provided with a tubular bent seal piece that seals the boundary area of.
【０００５】外ホース部の材質は適宜選択できるが、耐
火炎性、耐摩耗性、耐油性等を考慮してニトリルゴム
（ＮＢＲ）系、ニトリルゴム（ＮＢＲ）と塩化ビニル
（ＰＶＣ）との混合物、エピクロロヒドリンゴム（Ｃ
Ｏ、ＥＣＯ）系、フッ素ゴム系（ＦＫＭ系）、ＣＨＣ系
を採用できる。内ホース部の材質は適宜選択できるが、
バリヤ性に優れたポリアミド樹脂（ＰＡ）を採用でき
る。特に柔軟性を考慮して１１ナイロンを採用できる。The material of the outer hose can be appropriately selected, but in consideration of flame resistance, abrasion resistance, oil resistance, etc., a nitrile rubber (NBR) system, a mixture of nitrile rubber (NBR) and vinyl chloride (PVC). , Epichlorohydrin rubber (C
O, ECO) type, fluororubber type (FKM type), CHC type can be adopted. The material of the inner hose can be selected as appropriate,
Polyamide resin (PA) with excellent barrier properties can be used. Particularly, nylon 11 can be adopted in consideration of flexibility.
【０００６】一般的には、内ホース部と外ホース部との
間には筒状空気層が形成されている。Generally, a tubular air layer is formed between the inner hose portion and the outer hose portion.
【０００７】[0007]
【作用】相手部材とホースとを接続する際には、相手部
材と内ホース部の内端部との境界域は、折曲シール片で
シールされる。When the mating member and the hose are connected, the boundary area between the mating member and the inner end of the inner hose is sealed with the bent seal piece.
【０００８】[0008]
【実施例】以下、本発明に係るホースの実施例を図１、
図２を参照して説明する。この例に係るホースは、外ホ
ース部１と、外ホース部１の中央孔１ｉ内に配置された
内ホース部２とで構成されている。外ホース部１は、軸
方向の中間域に位置する第１の蛇腹筒部１０と、軸方向
の両端部に設けられた外端部１１とで形成されている。
第１の蛇腹筒部１０はリング状にのびる頂部１０ａ及び
谷部１０ｃをもつ。頂部１０ａの外径は４０〜８０ｍｍ
程度に設定されている。谷部１０ｃの内径は３０〜７０
ｍｍ程度に設定されている。隣り合う頂部１０ａ間のピ
ッチは１０〜２０ｍｍ程度に設定されている。EXAMPLE An example of a hose according to the present invention will be described below with reference to FIG.
This will be described with reference to FIG. The hose according to this example includes an outer hose portion 1 and an inner hose portion 2 arranged in a central hole 1i of the outer hose portion 1. The outer hose portion 1 is formed of a first bellows tube portion 10 located in an intermediate region in the axial direction and outer end portions 11 provided at both end portions in the axial direction.
The first bellows tube portion 10 has a ring-shaped top portion 10a and a valley portion 10c. The outer diameter of the top portion 10a is 40 to 80 mm
It is set to a degree. The inner diameter of the valley portion 10c is 30 to 70
It is set to about mm. The pitch between the adjacent tops 10a is set to about 10 to 20 mm.
【０００９】外ホース部１の材質は、耐火炎性、耐摩耗
性、耐油性等を考慮してニトリルゴムと塩化ビニル（Ｐ
ＶＣ）との混合物が採用されている。外ホース部１は、
加硫型を用いる型成形により１７０〜１９０°Ｃ程度で
加硫処理されて形成されている。組付前の状態の外ホー
ス部１は図２に示されている。図２に示す様に、外ホー
ス部１の外端部１１の端には、リング状の段面２５ｃを
備えた薄肉筒状の折曲シール片２５が一体的に延設され
ている。The outer hose portion 1 is made of nitrile rubber and vinyl chloride (P) in consideration of flame resistance, abrasion resistance, oil resistance and the like.
VC) has been adopted. The outer hose part 1
It is formed by being vulcanized at about 170 to 190 ° C by molding using a vulcanization mold. The outer hose portion 1 in a state before assembly is shown in FIG. As shown in FIG. 2, at the end of the outer end portion 11 of the outer hose portion 1, a thin-walled tubular bent seal piece 25 having a ring-shaped step surface 25c is integrally extended.
【００１０】内ホース部２は、軸方向の中央域に位置す
る第２の蛇腹筒部２０と、軸方向の両端部に設けられた
内端部２１とで形成されている。第２の蛇腹筒部２０は
リング状にのびる頂部２０ａ及び谷部２０ｃをもつ。頂
部２０ａの外径は２０〜６０ｍｍ程度に設定されてい
る。谷部２０ｃの内径は１８〜５８ｍｍ程度に設定され
ている。隣り合う頂部２０ａ間のピッチは、外ホース部
１の頂部１０ａ間のピッチよりも小さく、１〜５ｍｍ程
度に設定されている。内ホース部２の内周面により、ガ
ソリン燃料等の流体が通過する通過孔２ｉが形成されて
いる。The inner hose portion 2 is formed by a second bellows cylinder portion 20 located in the central region in the axial direction and inner end portions 21 provided at both ends in the axial direction. The second bellows tube portion 20 has a ring-shaped top portion 20a and a valley portion 20c. The outer diameter of the top portion 20a is set to about 20 to 60 mm. The inner diameter of the valley portion 20c is set to about 18 to 58 mm. The pitch between the adjacent top portions 20a is smaller than the pitch between the top portions 10a of the outer hose portion 1 and is set to about 1 to 5 mm. The inner peripheral surface of the inner hose portion 2 forms a passage hole 2i through which a fluid such as gasoline fuel passes.
【００１１】内ホース部２の材質は、バリヤ性及び柔軟
性を考慮してポリアミド樹脂（１１ナイロン）が採用さ
れている。内ホース部２はブロー成形により成形されて
いる。本実施例では、外ホース部１及び内ホース部２を
別々に成形し、図１から理解できる様に、筒状の折曲シ
ール片２５を内側に折り曲げてリング状空間２５ｅを形
成すると共に、リング状空間２５ｅに内ホース部２の内
端部２１を挿入し、その後、リング状のクランプ４を外
ホース部１の外端部１１にクランプする。これにより第
２の蛇腹筒部２０と第１の蛇腹筒部１０との間には、筒
状空気層３が形成されている。Polyamide resin (11 nylon) is adopted as the material of the inner hose portion 2 in consideration of barrier properties and flexibility. The inner hose portion 2 is formed by blow molding. In this embodiment, the outer hose portion 1 and the inner hose portion 2 are separately molded, and as can be understood from FIG. 1, the tubular bending seal piece 25 is bent inward to form the ring-shaped space 25e, and The inner end portion 21 of the inner hose portion 2 is inserted into the ring-shaped space 25e, and then the ring-shaped clamp 4 is clamped to the outer end portion 11 of the outer hose portion 1. As a result, the tubular air layer 3 is formed between the second bellows tubular portion 20 and the first bellows tubular portion 10.
【００１２】この様に構成したホースは、ガソリン燃料
等の流体が通過する経路に組付けられ、流体送給用とし
て使用される。ホースの組付の際には、蛇腹筒部１０、
２０の伸縮性、屈曲性が利用され、組付誤差も蛇腹筒部
１０、２０により吸収できる。また使用時における振動
も蛇腹筒部１０、２０により吸収できる。以上説明した
様に本実施例では、外ホース部１の外端部１１は、内ホ
ース部２の内端部２１の内面側に折り曲げられた薄肉筒
状の折曲シール片２５を備えており、相手部材３００と
ホースとを接続する際には、相手部材３００の外周面と
内ホース部２の内端部２１との境界域は、ゴム製の折曲
シール片２５でシールされる。The hose thus constructed is installed in a passage through which a fluid such as gasoline fuel passes and is used for fluid supply. When assembling the hose, the bellows tube portion 10,
The elasticity and flexibility of 20 are utilized, and the assembling error can be absorbed by the bellows tubular portions 10 and 20. Also, vibrations during use can be absorbed by the bellows tubular portions 10 and 20. As described above, in the present embodiment, the outer end portion 11 of the outer hose portion 1 is provided with the thin-walled tubular bent seal piece 25 that is bent toward the inner surface side of the inner end portion 21 of the inner hose portion 2. When connecting the mating member 300 and the hose, the boundary area between the outer peripheral surface of the mating member 300 and the inner end portion 21 of the inner hose portion 2 is sealed by a bent seal piece 25 made of rubber.
【００１３】また本実施例では、外ホース部１の外端部
１１と折曲シール片２５とで内ホース部２の内端部２１
は、径内方向及び径外方向の双方から包み込まれている
ので、クランプ４の緊結力が減少して流体である燃料が
内ホース部２の内面を伝わって漏れようとしても、外方
には漏れない。更に本実施例では、内ホース部２の第２
の蛇腹筒部２０と外ホース部１の第１の蛇腹筒部１０と
の間には筒状空気層３が形成されているため、ホースが
撓み変形する際、第１の蛇腹筒部１０と第２の蛇腹筒部
２０とはそれぞれ独立して変形でき、従って、ホースの
柔軟性が確保される。Further, in this embodiment, the outer end portion 11 of the outer hose portion 1 and the bent seal piece 25 constitute the inner end portion 21 of the inner hose portion 2.
Is wrapped from both the radially inward direction and the radially outward direction, the tightening force of the clamp 4 is reduced, and even if the fuel, which is a fluid, tries to leak along the inner surface of the inner hose portion 2, It doesn't leak. Further, in the present embodiment, the second hose of the inner hose portion 2 is
Since the tubular air layer 3 is formed between the bellows tubular portion 20 and the first bellows tubular portion 10 of the outer hose portion 1, when the hose flexes and deforms, The hose can be deformed independently of the second bellows tube portion 20, thus ensuring the flexibility of the hose.
【００１４】また本実施例では、内ホース部２と外ホー
ス部１とが２重ホース構造を構成するので、バリヤ性の
確保に有利であり、特に、内ホース部２がバリヤ性に優
れたポリアミド樹脂で形成されているため、ガソリン燃
料等の流体の透過阻止、蒸発阻止に有利である。また本
実施例では、加硫ゴムで形成された外ホース部１は耐火
炎性を有するので、ホース外の火炎に対する内ホース部
２の保護性が確保される。Further, in this embodiment, the inner hose portion 2 and the outer hose portion 1 form a double hose structure, which is advantageous in ensuring the barrier property, and in particular, the inner hose portion 2 is excellent in the barrier property. Since it is formed of a polyamide resin, it is advantageous in preventing permeation and evaporation of fluid such as gasoline fuel. Further, in this embodiment, the outer hose portion 1 made of vulcanized rubber has flame resistance, so that the inner hose portion 2 is protected against flames outside the hose.
【００１５】更に、内ホース部２と外ホース部１との間
に形成された筒状空気層３は、空気断熱層としても作用
するため、ホース外の熱が内ホース部２に伝達されにく
くなり、内ホース部２に対する断熱性、内ホース部２の
耐火炎性が一層確保される。更に本実施例では、内ホー
ス部２の第２蛇腹筒部２０の波高さ、ピッチは外ホース
部１に比較して小さいので、内ホース部２の通過孔２ｉ
を通るガソリン燃料等の流体の通過抵抗の低減化、流体
の乱流化防止にも貢献である。Further, since the tubular air layer 3 formed between the inner hose portion 2 and the outer hose portion 1 also functions as an air heat insulating layer, heat outside the hose is less likely to be transferred to the inner hose portion 2. Therefore, the heat insulation of the inner hose portion 2 and the flame resistance of the inner hose portion 2 are further secured. Further, in this embodiment, the wave height and pitch of the second bellows tube portion 20 of the inner hose portion 2 are smaller than those of the outer hose portion 1, so that the passage hole 2i of the inner hose portion 2 is formed.
It also contributes to the reduction of the passage resistance of fluid such as gasoline fuel passing through and the prevention of turbulence of the fluid.
【００１６】[0016]
【発明の効果】本発明に係るホースによれば、相手部材
の外周面と内ホース部の内端部との境界域は、折曲シー
ル片でシールされるので、別部品を不要ならしめ得、組
付け忘れもない。更に外ホース部と折曲シール片とは一
体化されているので、別部品のシール片に比較してシー
ル性が高まる。According to the hose of the present invention, the boundary area between the outer peripheral surface of the mating member and the inner end portion of the inner hose is sealed by the bent seal piece, so that a separate part may be unnecessary. I never forget to assemble. Furthermore, since the outer hose portion and the bent seal piece are integrated, the sealability is improved as compared with the seal piece which is a separate component.
【図１】実施例に係るホースの断面図である。FIG. 1 is a cross-sectional view of a hose according to an example.
【図２】組付け前の状態における内ホース部の断面図で
ある。FIG. 2 is a cross-sectional view of an inner hose portion before assembly.
【図３】従来例に係るホースに相手部材を挿入した状態
の要部の断面図である。FIG. 3 is a cross-sectional view of an essential part in a state in which a mating member is inserted in a hose according to a conventional example.
図中、１は外ホース部、１０は第１の蛇腹筒部、２は内
ホース部、２０は第２の蛇腹筒部、２５は折曲シール
片、３は筒状空気層を示す。In the figure, 1 is an outer hose portion, 10 is a first bellows tubular portion, 2 is an inner hose portion, 20 is a second bellows tubular portion, 25 is a bent seal piece, and 3 is a tubular air layer.
Claims (1)
と、 該外ホース部に略同軸的に保持され相手部材が嵌合する
内端部をもつ樹脂を基材とする内ホース部とで構成さ
れ、 該外ホース部の該外端部は、該内ホース部の該内端部の
内面側に折り曲げられると共に該相手部材と該内ホース
部の該内端部との境界域をシールする筒状の折曲シール
片を備えていることを特徴とするホース。1. An inner base material made of rubber having an outer end portion and made of rubber as a base material, and resin having an inner end portion which is held substantially coaxially with the outer hose portion and into which a mating member is fitted. A hose portion, the outer end portion of the outer hose portion being bent toward the inner surface side of the inner end portion of the inner hose portion, and the boundary between the mating member and the inner end portion of the inner hose portion. A hose having a tubular bent seal piece for sealing the region.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5009267A JPH06221481A (en) | 1993-01-22 | 1993-01-22 | Hose |
| US08/538,802 US5829483A (en) | 1992-10-30 | 1995-10-03 | Hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5009267A JPH06221481A (en) | 1993-01-22 | 1993-01-22 | Hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06221481A true JPH06221481A (en) | 1994-08-09 |
Family
ID=11715675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5009267A Pending JPH06221481A (en) | 1992-10-30 | 1993-01-22 | Hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06221481A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5791696A (en) * | 1993-06-14 | 1998-08-11 | Tokai Rubber Industries, Ltd. | Hose with a protector |
| US6296282B1 (en) * | 1997-02-18 | 2001-10-02 | Witzenmann Gmbh Metallschlauch-Fabrik Pforzheim | Articulated connecting element for piping elements |
| US6412520B1 (en) | 1999-05-20 | 2002-07-02 | Marugo Rubber Industries, Ltd. | Hose for fuel piping |
| US6478341B1 (en) | 1999-05-27 | 2002-11-12 | Tokai Rubber Industries, Ltd. | Tube clamping structure |
-
1993
- 1993-01-22 JP JP5009267A patent/JPH06221481A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5791696A (en) * | 1993-06-14 | 1998-08-11 | Tokai Rubber Industries, Ltd. | Hose with a protector |
| US6296282B1 (en) * | 1997-02-18 | 2001-10-02 | Witzenmann Gmbh Metallschlauch-Fabrik Pforzheim | Articulated connecting element for piping elements |
| US6412520B1 (en) | 1999-05-20 | 2002-07-02 | Marugo Rubber Industries, Ltd. | Hose for fuel piping |
| US6478341B1 (en) | 1999-05-27 | 2002-11-12 | Tokai Rubber Industries, Ltd. | Tube clamping structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5829483A (en) | Hose | |
| US7464968B2 (en) | Low permeability elastic sealing ring | |
| US6537355B2 (en) | Evaporative emission treatment device | |
| JP3417282B2 (en) | Hollow resin container | |
| JP2003314759A (en) | Fuel hose, fuel hose connection method, and fuel hose connection structure | |
| EP0591831B1 (en) | Multi-layered hose | |
| JP3899780B2 (en) | Tube fastening structure | |
| US7267373B2 (en) | Connecting structure for a fluid transport hose | |
| EP1180633B1 (en) | Fuel hose connection structure and fuel hose | |
| US7192063B2 (en) | Metallic tubular hose having a rubber or resin hard material layer | |
| JP2001021069A (en) | Hose with protector | |
| JPH06221481A (en) | Hose | |
| JP2850700B2 (en) | hose | |
| US20020106526A1 (en) | Seal member | |
| US6447026B2 (en) | Arrangement for connecting two pipes | |
| JP2836418B2 (en) | Hose structure | |
| JPH06137470A (en) | Hose | |
| KR100532555B1 (en) | Pipe's connector | |
| JP7223647B2 (en) | joint | |
| JPH06307585A (en) | Hose | |
| JPH0137255Y2 (en) | ||
| JP2002089762A (en) | Connecting structural body | |
| JPH06313495A (en) | Hose | |
| JPH06307583A (en) | Hose | |
| JP3099787B2 (en) | Fuel hose |