JPH0560279A - Connecting structure of hose - Google Patents
Connecting structure of hoseInfo
- Publication number
- JPH0560279A JPH0560279A JP3213800A JP21380091A JPH0560279A JP H0560279 A JPH0560279 A JP H0560279A JP 3213800 A JP3213800 A JP 3213800A JP 21380091 A JP21380091 A JP 21380091A JP H0560279 A JPH0560279 A JP H0560279A
- Authority
- JP
- Japan
- Prior art keywords
- hose
- pipe member
- thick
- connection structure
- hoses
- 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 That Cut Off Fluids, And Hose Joints (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、2方向分岐ホース、3
方向分岐ホースなどの分岐部に利用されるホースの接続
構造に関する。BACKGROUND OF THE INVENTION The present invention relates to a bidirectional branch hose, 3
The present invention relates to a hose connection structure used for a branch portion such as a directional branch hose.
【0002】[0002]
【従来の技術】従来、ホースの接続構造として、例えば
特開昭62−233591号公報等に開示されたものが
知られている。この接続構造は図4に示すように、3方
向に分岐する分岐パイプ100と、分岐パイプ100の
それぞれの分岐筒に挿着されたホース201、202、
203と、ホースと分岐パイプの結合部分を覆う樹脂製
被覆部300とから構成されている。2. Description of the Related Art Conventionally, as a hose connection structure, for example, one disclosed in Japanese Patent Laid-Open No. 62-233591 is known. As shown in FIG. 4, this connection structure includes branch pipes 100 that branch in three directions, and hoses 201 and 202 inserted into the branch pipes of the branch pipes 100.
203, and a resin coating portion 300 that covers the joint between the hose and the branch pipe.
【0003】このホース接続構造を形成するには、分岐
パイプ100の分岐筒をそれぞれホース201〜203
に挿入する。その後それぞれのホースと分岐パイプ10
0の結合部分を金型内に配置し、成形により結合部分に
樹脂製被覆部300を形成する。このとき樹脂製被覆部
300は、0.5%以上の収縮率で収縮して固化するの
で、それぞれのホースには縮径の力が作用する。これに
よりそれぞれのホースは、樹脂製被覆部300と分岐パ
イプ100との間で強く挟持され、高いシール圧力が得
られる。In order to form this hose connection structure, the branch pipes of the branch pipe 100 are respectively connected to the hoses 201 to 203.
To insert. Then each hose and branch pipe 10
The joint portion of 0 is arranged in the mold, and the resin covering portion 300 is formed on the joint portion by molding. At this time, since the resin coating portion 300 contracts and solidifies at a contraction rate of 0.5% or more, a diameter reducing force acts on each hose. As a result, each hose is strongly sandwiched between the resin coating portion 300 and the branch pipe 100, and a high sealing pressure is obtained.
【0004】[0004]
【発明が解決しようとする課題】本発明は、上記したホ
ースの接続構造において、ホースの締結強度をさらに向
上させることを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to further improve the fastening strength of a hose in the above hose connection structure.
【0005】[0005]
【課題を解決するための手段】上記課題を解決する本発
明のホースの接続構造は、ホースと、表面に抜け止め用
の環状突起をもちホースに挿入された筒部と、筒部の開
口から後方に形成されホースの挿入の位置決め用の厚肉
部と、からなるパイプ部材と、ホースとパイプ部材の接
続部分全周に被覆され型成形により形成された樹脂製被
覆部と、からなるホースの接続構造において、厚肉部と
ホース先端面との間には間隙が形成され、樹脂製被覆部
が間隙を充填していることを特徴とするホースの接続構
造。A hose connection structure of the present invention which solves the above-mentioned problems includes a hose, a cylindrical portion having an annular projection for preventing the stopper from being inserted into the hose, and an opening of the cylindrical portion. A hose consisting of a pipe member formed at the rear for positioning the insertion of the hose, and a resin covering part formed by molding over the entire circumference of the connecting part of the hose and the pipe member. In the connection structure, a gap is formed between the thick wall portion and the hose end surface, and the resin coating portion fills the gap.
【0006】本発明のホースの接続構造は、パイプ部材
とホースと樹脂製被覆部とから構成される。ホースは従
来と同様に各種ホースを用いることができる。中でも中
間に補強糸層が編組された補強ホースを用いることが好
ましい。パイプ部材は複数の筒部と、複数の筒部の間に
設けられた厚肉部とから構成される。筒部の表面には、
従来と同様に抜け止め用の環状突起が形成されている。
そして厚肉部は筒部の開口から後方部分に形成され、主
としてホースの挿入の位置決めとしての機能をもつ。The hose connection structure of the present invention comprises a pipe member, a hose, and a resin coating portion. As the hose, various hoses can be used as in the conventional case. Above all, it is preferable to use a reinforcing hose in which a reinforcing yarn layer is braided in the middle. The pipe member is composed of a plurality of tubular portions and a thick portion provided between the plurality of tubular portions. On the surface of the cylinder,
An annular protrusion for retaining is formed as in the conventional case.
The thick-walled portion is formed in the rear portion from the opening of the tubular portion, and has a function mainly as a positioning for inserting the hose.
【0007】樹脂製被覆部はホースとパイプ部材の接続
部分全周に被覆され、型成形により形成された従来と同
様のものをいう。本発明の最大の特徴は、厚肉部とホー
ス先端面との間には間隙が形成され、樹脂製被覆部がそ
の間隙を充填しているところにある。このような構成と
したことにより、成形時の射出圧および樹脂製被覆部の
収縮時の圧力により、ホース端部にはパイプ部材の筒部
表面の環状突起に向かって押圧される力が作用する。こ
れにより抜け止めやシール気密性能を一層向上させるこ
とができる。なお、この間隙はパイプ部材の周方向に部
分的に形成されていてもよく、一周するリング状に形成
されていてもよい。The resin coating portion is the same as the conventional one, which is formed by molding over the entire circumference of the connecting portion between the hose and the pipe member. The greatest feature of the present invention is that a gap is formed between the thick wall portion and the hose tip surface, and the resin coating portion fills the gap. With such a configuration, a force that is pressed toward the annular projection on the surface of the tubular portion of the pipe member acts on the end of the hose due to the injection pressure during molding and the pressure during contraction of the resin coating portion. .. As a result, the retaining property and the seal airtightness can be further improved. The gap may be partially formed in the circumferential direction of the pipe member, or may be formed in a ring shape that makes one round.
【0008】さらにホースに補強ホースを用いた場合に
は、端面には補強糸層が表出し、樹脂製被覆部の成形時
に溶融樹脂がその補強糸層に含浸する作用が期待され
る。これにより補強糸層の表出部分と樹脂製被覆部とが
一体的に結合され、使用時のホースの脈動などに起因す
る端面からの補強糸層の素抜けが防止される。したがっ
て補強糸層が締結部分に確実に存在し、補強糸層の素抜
けによるホース強度の低下を防止することができる。Further, when a reinforcing hose is used as the hose, a reinforcing thread layer is exposed on the end face, and it is expected that the molten resin is impregnated into the reinforcing thread layer during molding of the resin coating portion. As a result, the exposed portion of the reinforcing yarn layer and the resin coating portion are integrally coupled, and the reinforcing yarn layer is prevented from falling off the end surface due to pulsation of the hose during use. Therefore, the reinforcing thread layer is surely present in the fastening portion, and it is possible to prevent the hose strength from being lowered due to the lack of the reinforcing thread layer.
【0009】[0009]
【発明の作用および効果】本発明のホースの接続構造で
は、ホース先端面と厚肉部との間には間隙が形成され、
樹脂製被覆部がその間隙を充填している。したがってホ
ース端面には、樹脂製被覆部から略軸方向と径方向内方
へ向かう力の合力が作用し、その合力は筒部表面に設け
られた環状突起に向かう方向に作用する。これによりホ
ース端部は樹脂製被覆部と環状突起との間で挟持される
こととなり、抜け止め性能を一層向上させることができ
る。また、上記合力によりホース先端部は圧縮変形を受
けるため、先端部に弾性反力が生まれシール性が向上す
る。さらに補強糸層への樹脂の含浸が期待され、補強糸
の素抜けを防止することができる。In the hose connection structure of the present invention, a gap is formed between the hose tip surface and the thick wall portion,
The resin coating portion fills the gap. Therefore, on the end surface of the hose, a resultant force of forces from the resin coating portion inward in the substantially axial direction and in the radial direction acts, and the resultant force acts in a direction toward the annular projection provided on the surface of the tubular portion. As a result, the end portion of the hose is sandwiched between the resin coating portion and the annular protrusion, and the retaining performance can be further improved. Further, since the end portion of the hose is compressed and deformed by the resultant force, an elastic reaction force is generated at the end portion, and the sealing property is improved. Further, it is expected that the reinforcing yarn layer will be impregnated with the resin, so that the reinforcing yarn can be prevented from coming off.
【0010】これらの作用により、本発明のホースの接
続構造によれば、従来の接続構造に比べてホースの抜け
止め性能が向上し、かつ耐久性を向上させることができ
る。Due to these functions, the hose connection structure of the present invention can improve the hose retention performance and durability as compared with the conventional connection structure.
【0011】[0011]
【実施例】以下実施例により具体的に説明する。 (実施例1)図1に本発明の一実施例の接続構造の断面
図を示す。この接続構造は、2本のホース1と、ホース
1にそれぞれ挿入され2方向に分岐するパイプ部材2
と、ホース1とパイプ部材2の接続部分全周に被覆され
た樹脂製被覆部3とから構成される。Embodiments will be specifically described below with reference to embodiments. (Embodiment 1) FIG. 1 is a sectional view of a connection structure according to an embodiment of the present invention. This connection structure includes two hoses 1 and a pipe member 2 inserted into each hose 1 and branched in two directions.
And a resin covering portion 3 covering the entire circumference of the connecting portion between the hose 1 and the pipe member 2.
【0012】ホース1は図2に拡大して示すように、内
管ゴム層10と、外皮ゴム層11と、内管ゴム層10と
外皮ゴム層11の間に介在する補強糸層12とからなる
補強ホースである。このホース1はまず内管ゴム層10
を押出成形し、その表面に補強糸を編組して補強糸層1
2を形成する。そしてさらにその表面に外皮ゴム層11
を押出成形し、一体的に加硫して形成されたものであ
る。As shown in the enlarged view of FIG. 2, the hose 1 comprises an inner tube rubber layer 10, an outer rubber layer 11, and a reinforcing thread layer 12 interposed between the inner tube rubber layer 10 and the outer rubber layer 11. It is a reinforcing hose. First of all, this hose 1 has an inner tube rubber layer 10
Is extruded, and a reinforcing yarn is braided on the surface thereof to form a reinforcing yarn layer 1
Form 2. Further, the outer rubber layer 11 is further formed on the surface thereof.
Is extruded and integrally vulcanized.
【0013】パイプ部材2は、左右両側に延び、表面に
抜け止め用の複数の環状突起21をもつ筒部20と、両
側の筒部20の間に形成された厚肉部22と、から構成
される。環状突起21は、筒部20の開口側から厚肉部
22側に向かって径が除々に増大するテーパ表面をも
ち、後端に軸方向に対して垂直な平面をなすリング状の
壁部21aをもつ。また厚肉部22はほぼホース1の厚
さに相当する厚さで筒部20から径方向に突出し、筒部
20との境界部は中央部に向かうにつれて径が増大する
テーパ表面22aとなっている。The pipe member 2 is composed of a tubular portion 20 that extends to the left and right sides and has a plurality of annular projections 21 on its surface for preventing slipping off, and a thick portion 22 formed between the tubular portions 20 on both sides. To be done. The annular projection 21 has a tapered surface whose diameter gradually increases from the opening side of the tubular portion 20 toward the thick wall portion 22 side, and has a ring-shaped wall portion 21a at the rear end that forms a plane perpendicular to the axial direction. With. Further, the thick portion 22 has a thickness substantially corresponding to the thickness of the hose 1 and projects radially from the tubular portion 20, and the boundary portion with the tubular portion 20 is a tapered surface 22a whose diameter increases toward the central portion. There is.
【0014】そして樹脂製被覆部3はパイプ部材2のほ
ぼ全体を覆う位置に設けられ、厚肉部22のテーパ表面
22aとホース1の先端面との間に形成された間隙部分
を充填する断面三角状のリング状の充填部30を有して
いる。この接続構造を形成するには、先ず左右に延びる
2つの筒部20をそれぞれホース1に挿入する。このと
きホース1端面の一部が厚肉部22のテーパ表面22a
に当接することで挿入の位置が決まる。そしてホース1
が挿着されたパイプ部材2を成形型内に配置し、射出成
形により樹脂製被覆部3を形成する。このとき溶融樹脂
は、ホース1端面と厚肉部22のテーパ表面22aとの
間に形成されたリング状の間隙にも充填され、充填部3
0が形成される。The resin coating portion 3 is provided at a position to cover almost the entire pipe member 2, and a cross section for filling a gap portion formed between the tapered surface 22a of the thick portion 22 and the tip end surface of the hose 1. It has a triangular ring-shaped filling portion 30. In order to form this connection structure, first, the two tubular portions 20 extending in the left and right directions are inserted into the hose 1, respectively. At this time, a part of the end surface of the hose 1 has a tapered surface 22a of the thick portion 22.
The position of insertion is determined by contacting with. And hose 1
The pipe member 2 in which is attached is placed in a molding die, and the resin coating portion 3 is formed by injection molding. At this time, the molten resin is also filled in the ring-shaped gap formed between the end surface of the hose 1 and the tapered surface 22a of the thick portion 22, and the filled portion 3
0 is formed.
【0015】本実施例の接続構造によれば、充填部30
の存在位置では、成形時の樹脂圧力及び収縮の圧力によ
りホース1の端面を押圧する力が作用し、ホース1の端
部には環状突起21の壁部21aに向かって押圧される
力が作用する。したがってホース1端部は、環状突起2
1と充填部30との間で圧縮された状態となり、圧縮変
形も生じてその反力により抜け止め力およびシール気密
性が向上している。According to the connection structure of this embodiment, the filling portion 30
At the position where is present, a force for pressing the end surface of the hose 1 acts due to the resin pressure and the contraction pressure at the time of molding, and a force for pressing toward the wall portion 21a of the annular projection 21 acts on the end portion of the hose 1. To do. Therefore, the end of the hose 1 is
1 and the filling portion 30 are in a compressed state, and a compressive deformation also occurs and the reaction force improves the retaining force and the seal airtightness.
【0016】さらに充填部30は、一部補強糸層12内
に含浸して一体的に硬化しており、補強糸層12の素抜
けが防止されている。これにより耐久性が向上してい
る。 (実施例2)図3に、本発明の第2の実施例のホースの
接続構造を示す。この実施例ではパイプ部材2を3方向
に分岐する分岐管としたこと以外は実施例1と同様であ
り、3方向に分岐した筒部20の厚肉部22とホース1
との間に、それぞれリング状の充填部30が形成されて
いる。本実施例の接続構造においても実施例1の接続構
造と同様の作用効果を奏し、抜け止め強度の向上および
耐久性の向上の効果を得ることができる。Further, the filling portion 30 is partially impregnated into the reinforcing yarn layer 12 and hardened integrally, so that the reinforcing yarn layer 12 is prevented from falling out. This improves durability. (Embodiment 2) FIG. 3 shows a hose connection structure according to a second embodiment of the present invention. This embodiment is the same as Embodiment 1 except that the pipe member 2 is a branch pipe that branches in three directions, and the thick portion 22 of the tubular portion 20 and the hose 1 that branch in three directions.
And a ring-shaped filling portion 30 are formed between them and. Also in the connection structure of the present embodiment, the same operational effects as those of the connection structure of Embodiment 1 can be obtained, and the effect of improving the retaining strength and the durability can be obtained.
【図1】本発明の一実施例のホースの接続構造の断面図
である。FIG. 1 is a sectional view of a hose connection structure according to an embodiment of the present invention.
【図2】図1の要部拡大断面図である。FIG. 2 is an enlarged sectional view of a main part of FIG.
【図3】本発明の第2の実施例のホースの接続構造の断
面図である。FIG. 3 is a cross-sectional view of a hose connection structure according to a second embodiment of the present invention.
【図4】従来のホースの接続構造の断面図である。FIG. 4 is a cross-sectional view of a conventional hose connection structure.
1:ホース 2:パイプ部材
3:樹脂製被覆部 21:筒部 21:環状突起
22:厚肉部 12:補強糸層 30:充填部1: Hose 2: Pipe member
3: Resin coating part 21: Cylindrical part 21: Annular protrusion
22: Thick part 12: Reinforcing yarn layer 30: Filling part
Claims (1)
た筒部と、該筒部の開口から後方に形成され該ホースの
挿入の位置決め用の厚肉部と、からなるパイプ部材と、 該ホースと該パイプ部材の接続部分全周に被覆され型成
形により形成された樹脂製被覆部と、からなるホースの
接続構造において、 該厚肉部と該ホース先端面との間には間隙が形成され、
該樹脂製被覆部が該間隙を充填していることを特徴とす
るホースの接続構造。1. A hose, a tubular portion having a ring-shaped projection for retaining the surface of the hose and inserted into the hose, and a thick portion formed rearward from the opening of the tubular portion for positioning the insertion of the hose. In the connection structure of the hose, which comprises a pipe member made of, and a hose and a resin-made coating part which is formed on the entire connection part of the pipe member by molding and is formed, the thick part and the hose tip surface. A gap is formed between
A connection structure for a hose, wherein the resin coating portion fills the gap.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3213800A JPH0560279A (en) | 1991-08-26 | 1991-08-26 | Connecting structure of hose |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3213800A JPH0560279A (en) | 1991-08-26 | 1991-08-26 | Connecting structure of hose |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0560279A true JPH0560279A (en) | 1993-03-09 |
Family
ID=16645257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3213800A Pending JPH0560279A (en) | 1991-08-26 | 1991-08-26 | Connecting structure of hose |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0560279A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100468465B1 (en) * | 2001-07-05 | 2005-01-31 | (주)도원엔지니어링건축사사무소 | A coupling pipe for synthetic resin pipe |
KR100609868B1 (en) * | 2005-05-02 | 2006-08-22 | 주식회사 평온하이텍 | Nipple and heat transfer pipe assembly with the nipple |
KR100595071B1 (en) * | 1996-05-21 | 2007-05-17 | 발레오 씨커레자 아비타코로 에스페아 | Method and apparatus for liquid tight coupling of a first pipe and at least one second pipe |
-
1991
- 1991-08-26 JP JP3213800A patent/JPH0560279A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100595071B1 (en) * | 1996-05-21 | 2007-05-17 | 발레오 씨커레자 아비타코로 에스페아 | Method and apparatus for liquid tight coupling of a first pipe and at least one second pipe |
KR100468465B1 (en) * | 2001-07-05 | 2005-01-31 | (주)도원엔지니어링건축사사무소 | A coupling pipe for synthetic resin pipe |
KR100609868B1 (en) * | 2005-05-02 | 2006-08-22 | 주식회사 평온하이텍 | Nipple and heat transfer pipe assembly with the nipple |
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