JPH11141751A - High pressure rubber hose - Google Patents
High pressure rubber hoseInfo
- Publication number
- JPH11141751A JPH11141751A JP2371998A JP2371998A JPH11141751A JP H11141751 A JPH11141751 A JP H11141751A JP 2371998 A JP2371998 A JP 2371998A JP 2371998 A JP2371998 A JP 2371998A JP H11141751 A JPH11141751 A JP H11141751A
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- layer
- layers
- steel wire
- pressure
- 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
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、呼び径６５mm，
使用圧力34.5 MPaの大口径高圧ゴムホースにかかわり、
更に詳しくは外径を小さく重量を軽減させると共に、更
に曲げ半径を小さく出来る可撓性を持つ高圧ゴムホース
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention
In connection with a large-diameter high-pressure rubber hose with an operating pressure of 34.5 MPa,
More specifically, the present invention relates to a flexible high-pressure rubber hose capable of reducing the outer diameter and the weight, and further reducing the bending radius.
【０００２】[0002]
【従来の技術】従来、呼び径６５mm，使用圧力34.5 MPa
の大口径高圧ゴムホースでは、複数層の補強コードとし
て、複数本のスチール素線が撚り合わされたスチールコ
ードがスパイラルに巻回されたものが使用され、このス
パイラル補強層を、内面ゴム層と外面ゴム層との間に層
間ゴム層を挟んで複数層設けられていた。2. Description of the Related Art Conventionally, a nominal diameter of 65 mm and an operating pressure of 34.5 MPa.
In a large diameter high pressure rubber hose, a steel cord in which a plurality of steel strands are twisted and wound in a spiral is used as a multi-layer reinforcing cord.The spiral reinforcing layer is formed by an inner rubber layer and an outer rubber layer. A plurality of layers were provided with an interlayer rubber layer interposed between the layers.
【０００３】[0003]
【発明が解決しようとする課題】然しながら、このよう
なスチールコードを用いた大口径高圧ホースは、ホース
外径が大きくなる上に、重量も大きくなり、更に剛性が
大きいために曲げ半径が大きくなって取扱いが非常に不
便であった。この発明の目的は、呼び径６５mm，使用圧
力34.5 MPaの大口径高圧ゴムホースにおいて、重量を軽
減させると共に外径を小さくし、しかも最小曲げ半径を
大幅に減少させることが出来る高圧コムホースを提供す
ることにある。However, a large-diameter high-pressure hose using such a steel cord has a large outside diameter, a large weight, and a large bending radius due to its high rigidity. The handling was very inconvenient. SUMMARY OF THE INVENTION An object of the present invention is to provide a high-pressure comb hose capable of reducing the weight, reducing the outer diameter and greatly reducing the minimum bending radius in a large-diameter high-pressure rubber hose having a nominal diameter of 65 mm and an operating pressure of 34.5 MPa. It is in.
【０００４】[0004]
【課題を解決するための手段】この発明は、上記目的を
達成するため、内面ゴム層と外面ゴム層との間に、層間
ゴム層を挟んで複数層の鋼線スパイラル補強層を介在さ
せた呼び径６５mm，使用圧力34.5 MPa用の大口径高圧ゴ
ムホースであって、前記鋼線スパイラル補強層を６層に
すると共に、該補強層の補強材に、引張り強さ260 ±15
kgf/mm2 ，直径(線径)0.8±0.05mmのスチール単線を用
い、かつ該スチール単線を１層当たり１６２本±５本の
単位で平行に引き揃えてスパイラルに巻回して構成した
ことを要旨とするものである。According to the present invention, in order to achieve the above object, a plurality of steel wire spiral reinforcing layers are interposed between an inner rubber layer and an outer rubber layer with an interlayer rubber layer interposed therebetween. A large-diameter high-pressure rubber hose having a nominal diameter of 65 mm and a working pressure of 34.5 MPa, wherein the steel wire spiral reinforcing layer has six layers, and the reinforcing material of the reinforcing layer has a tensile strength of 260 ± 15.
kgf / mm 2 , 0.8 ± 0.05mm diameter (wire diameter) using a single steel wire, and the steel single wire is drawn in parallel in units of 162 ± 5 per layer and wound in a spiral. It is an abstract.
【０００５】このように、鋼線スパイラル補強層の補強
材として、引張り強さ260 ±15kgf/mm2 ，直径 (線径)
0.8±0.05mmのスチール単線を用い、かつ該スチール単
線を１層当たり１６２本±５本の単位で平行に引き揃え
てスパイラルに巻回して６層配置するようにしたので、
従来の撚り線から成るスチールコードに比べて使用量が
大幅に少なく、軽量化及びコンパクト化することが出
来、更に剛性も低減するので、最小曲げ半径を大幅に減
少させて取扱性を向上することが出来る。As described above, as a reinforcing material for the steel wire spiral reinforcing layer, a tensile strength of 260 ± 15 kgf / mm 2 and a diameter (wire diameter) are used.
Since a single steel wire of 0.8 ± 0.05 mm was used, and the single steel wire was aligned in parallel in units of 162 ± 5 per layer and wound in a spiral to arrange six layers,
Compared to the conventional stranded wire steel cord, the usage amount is significantly less, the weight and size can be reduced, and the rigidity is also reduced, so the minimum bending radius is greatly reduced and the handling is improved. Can be done.
【０００６】[0006]
【発明の実施の形態】以下、添付図面に基づきこの発明
の実施の形態を説明する。図１は、この発明を実施した
大口径の高圧ホースの内部構造を示す説明図であって、
内面ゴム層１と外面ゴム層２との間には、層間ゴム層３
を挟んで複数層（この実施形態では６層であるが、特に
限定されるものではない）の鋼線スパイラル補強層４ａ
〜４ｆが介在させて一体的に形成されている。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an explanatory view showing the internal structure of a large-diameter high-pressure hose embodying the present invention,
An interlayer rubber layer 3 is provided between the inner rubber layer 1 and the outer rubber layer 2.
Steel wire spiral reinforcing layer 4a having a plurality of layers (six layers in this embodiment, but not particularly limited)
To 4f are integrally formed with the interposition.
【０００７】この発明にかかる大口径の高圧ホースは、
呼び径（内径）６５mm，使用圧力34.5 MPaから成り、鋼
線スパイラル補強層の補強材に、引張り強さ260 ±１５
kgf/mm2 ，直径0.8 ±0.05mmの高張力鋼線単線を用い、
該補強層を１層当たり１６２本±５本打ち込んである。
また各補強層４ａ〜４ｆの鋼線編組密度は、９０％〜９
９％に設定してある。なお、ここで鋼線編組密度とは、
単位表面積当たりの補強材（ワイヤ）の占める面積であ
り、下記の式で表すことが出来る。[0007] The large-diameter high-pressure hose according to the present invention comprises:
It has a nominal diameter (inner diameter) of 65 mm and a working pressure of 34.5 MPa, and has a tensile strength of 260 ± 15 for the reinforcing material of the steel wire spiral reinforcing layer.
kgf / mm 2 , 0.8 ± 0.05mm diameter high strength steel wire
162 ± 5 reinforcing layers are implanted per layer.
The steel wire braid density of each of the reinforcing layers 4a to 4f is 90% to 9%.
It is set to 9%. Here, the steel wire braid density is
The area occupied by the reinforcing material (wire) per unit surface area, and can be expressed by the following equation.
【０００８】 ｆ’＝（Ｎｄ／Ｐ・sin α/2）×１００（％） ここで、ｆ’：編組密度 Ｐ ：編組のピッチ sin α/2 ：編組角度 Ｎ ：補強材本数（一層当たり） ｄ ：補強材線径 以上のように、この発明では呼び径（内径）６５mm，使
用圧力34.5 MPaの鋼線スパイラル補強層を使用した大口
径高圧ホースにおいて、鋼線スパイラル補強層の補強材
として、引張り強さ260 ±１５kgf/mm2 ，直径（線径）
0.8 ±0.05mmのスチール単線を用い、かつ該スチール単
線を１層当たり１６２本±５本の単位で平行に引き揃え
てスパイラルに巻回して６層配置するようにしたので、
従来の撚り線から成るスチールコードに比べて使用量が
大幅に少なく、軽量化及びコンパクト化することが出
来、更に剛性も低減するので、最小曲げ半径を大幅に減
少させて取扱性を向上することが出来る。F ′ = (Nd / P · sin α / 2) × 100 (%) where f ′: braid density P: braid pitch sin α / 2: braid angle N: number of reinforcing members (per layer) d: Reinforcing material wire diameter As described above, in the present invention, in a large-diameter high-pressure hose using a steel wire spiral reinforcing layer having a nominal diameter (inner diameter) of 65 mm and an operating pressure of 34.5 MPa, as a reinforcing material for the steel wire spiral reinforcing layer, Tensile strength 260 ± 15kgf / mm 2 , diameter (wire diameter)
Since 0.8 ± 0.05mm steel single wire was used, and the steel single wire was aligned in parallel in units of 162 ± 5 wires per layer and wound in a spiral to arrange 6 layers.
Compared to the conventional stranded wire steel cord, the usage amount is significantly less, the weight and size can be reduced, and the rigidity is also reduced, so the minimum bending radius is greatly reduced and the handling is improved. Can be done.
【０００９】[0009]
【実施例】下記の表１は、従来の内径６５mmの大口径の
高圧ホースと、この発明の大口径の高圧ホースとの性能
試験の比較例である。EXAMPLES Table 1 below shows comparative examples of performance tests of a conventional large-diameter high-pressure hose having an inner diameter of 65 mm and a large-diameter high-pressure hose of the present invention.
【００１０】[0010]
【表１】 [Table 1]
【００１１】以上のように、従来の大口径高圧ホース
と、この発明の大口径高圧ホースとを比較すると、高圧
ホースとしての性能を維持した状態で、外径を約２２％
小径にすることが出来ると共に、最小曲げ半径は約５４
％，重量は５８％低減することが出来、高圧ホースの取
扱を容易にする構造とすることが出来る。As described above, when the conventional large-diameter high-pressure hose is compared with the large-diameter high-pressure hose of the present invention, the outer diameter is reduced by about 22% while maintaining the performance as a high-pressure hose.
The minimum bend radius is about 54
% And weight can be reduced by 58%, and a structure that facilitates handling of the high-pressure hose can be provided.
【００１２】[0012]
【発明の効果】この発明は、上記のように内面ゴム層と
外面ゴム層との間に、層間ゴム層を挟んで複数層の鋼線
スパイラル補強層を介在させた呼び径６５mm，使用圧力
34.5 MPa用の大口径高圧ゴムホースであって、前記鋼線
スパイラル補強層を６層にすると共に、該補強層の補強
材に、引張り強さ260 ±15kgf/mm2 ，直径（線径）0.8
±0.05mmのスチール単線を用い、かつ該スチール単線を
１層当たり１６２本±５本の単位で平行に引き揃えてス
パイラルに巻回して構成したので、従来の撚り線から成
るスチールコードに比べて使用量が大幅に少なく、軽量
化及びコンパクト化することが出来、更に剛性も低減す
るので、最小曲げ半径を大幅に減少させて取扱性を向上
することが出来る。As described above, the present invention has a nominal diameter of 65 mm with a plurality of steel wire spiral reinforcing layers interposed between an inner rubber layer and an outer rubber layer with an interlayer rubber layer interposed therebetween.
A large-diameter high-pressure rubber hose for 34.5 MPa, wherein the steel wire spiral reinforcing layer has six layers, and the reinforcing material of the reinforcing layer has a tensile strength of 260 ± 15 kgf / mm 2 and a diameter (wire diameter) of 0.8.
Since a single steel wire of ± 0.05 mm is used, and the single steel wire is drawn in parallel in units of 162 ± 5 wires per layer and wound in a spiral, compared to a conventional steel cord consisting of a stranded wire, Since the amount of use is greatly reduced, the weight and size can be reduced, and the rigidity is also reduced, so that the minimum bending radius can be greatly reduced and the handling property can be improved.
【図１】この発明を実施した大口径の高圧ホースの内部
構造を示す説明図である。FIG. 1 is an explanatory view showing the internal structure of a large-diameter high-pressure hose embodying the present invention.
１ 内面ゴム層 ２ 外面ゴム層 ３ 層間ゴム層 ４ａ〜４ｆ 鋼線スパイラ
ル補強層DESCRIPTION OF SYMBOLS 1 Inner rubber layer 2 Outer rubber layer 3 Interlayer rubber layer 4a-4f Steel wire spiral reinforcement layer
Claims (2)
ゴム層を挟んで複数層の鋼線スパイラル補強層を介在さ
せた呼び径６５mm，使用圧力34.5 MPa用の大口径高圧ゴ
ムホースであって、 前記鋼線スパイラル補強層を６層にすると共に、該補強
層の補強材に、引張り強さ260 ±15kgf/mm2 ，直径0.8
±0.05mmのスチール単線を用い、かつ該スチール単線を
１層当たり１６２本±５本の単位で平行に引き揃えてス
パイラルに巻回して成る高圧ゴムホース。1. A large-diameter high-pressure rubber hose having a nominal diameter of 65 mm and an operating pressure of 34.5 MPa in which a plurality of steel wire spiral reinforcing layers are interposed between an inner rubber layer and an outer rubber layer with an interlayer rubber layer interposed therebetween. The steel wire spiral reinforcing layer has six layers, and the reinforcing material of the reinforcing layer has a tensile strength of 260 ± 15 kgf / mm 2 and a diameter of 0.8.
A high-pressure rubber hose made of a single steel wire of ± 0.05 mm and spirally wound in a unit of 162 ± 5 wires per layer.
〜９９％にした請求項１に記載の高圧ゴムホース。2. The steel wire braid density of each reinforcing layer is 90%
The high-pressure rubber hose according to claim 1, wherein the amount of the high-pressure rubber hose is set to about 99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2371998A JPH11141751A (en) | 1997-09-05 | 1998-02-05 | High pressure rubber hose |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24125397 | 1997-09-05 | ||
| JP9-241253 | 1997-09-05 | ||
| JP2371998A JPH11141751A (en) | 1997-09-05 | 1998-02-05 | High pressure rubber hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11141751A true JPH11141751A (en) | 1999-05-28 |
Family
ID=26361127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2371998A Pending JPH11141751A (en) | 1997-09-05 | 1998-02-05 | High pressure rubber hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11141751A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004332927A (en) * | 2003-04-17 | 2004-11-25 | Ork:Kk | Flexible tube for high-pressure fluid |
| JP2010031993A (en) * | 2008-07-30 | 2010-02-12 | Yokohama Rubber Co Ltd:The | Hose for filling hydrogen |
| WO2011072688A1 (en) * | 2009-12-16 | 2011-06-23 | Nkt Flexibles I/S | A flexible pipe |
| CN103697251A (en) * | 2013-12-24 | 2014-04-02 | 苏州华东橡胶工业有限公司 | Heavy hydraulic hose with four layers of steel wires |
| CN104964103A (en) * | 2015-06-12 | 2015-10-07 | 苏州市大力电器有限公司 | High-strength hydraulic oil pipe |
| CN105042220A (en) * | 2015-08-20 | 2015-11-11 | 山东悦龙橡塑科技有限公司 | Fire fighting system applied to offshore drilling platform, fireproof hose assembly for dangerous areas of offshore drilling platform and manufacturing method of fireproof hose assembly |
| CN105179831A (en) * | 2015-08-20 | 2015-12-23 | 山东悦龙橡塑科技有限公司 | Hose assembly applied to replenishment and crossover conveying system of marine drilling platform and manufacturing method of hose assembly |
| WO2016199643A1 (en) * | 2015-06-09 | 2016-12-15 | 横浜ゴム株式会社 | Hydrogen-dispensing hose |
| JP2017003105A (en) * | 2015-06-09 | 2017-01-05 | 横浜ゴム株式会社 | Hose for hydrogen charging |
| JP2021067312A (en) * | 2019-10-23 | 2021-04-30 | 横浜ゴム株式会社 | Method for setting minimum bending radius of hose, and hose |
| WO2022123906A1 (en) * | 2020-12-11 | 2022-06-16 | 株式会社ブリヂストン | Multilayer hose |
-
1998
- 1998-02-05 JP JP2371998A patent/JPH11141751A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004332927A (en) * | 2003-04-17 | 2004-11-25 | Ork:Kk | Flexible tube for high-pressure fluid |
| JP4505252B2 (en) * | 2003-04-17 | 2010-07-21 | 株式会社Ｏｒｋ | Flexible tube for high pressure fluid |
| JP2010031993A (en) * | 2008-07-30 | 2010-02-12 | Yokohama Rubber Co Ltd:The | Hose for filling hydrogen |
| WO2011072688A1 (en) * | 2009-12-16 | 2011-06-23 | Nkt Flexibles I/S | A flexible pipe |
| CN103697251A (en) * | 2013-12-24 | 2014-04-02 | 苏州华东橡胶工业有限公司 | Heavy hydraulic hose with four layers of steel wires |
| JP2017003105A (en) * | 2015-06-09 | 2017-01-05 | 横浜ゴム株式会社 | Hose for hydrogen charging |
| WO2016199643A1 (en) * | 2015-06-09 | 2016-12-15 | 横浜ゴム株式会社 | Hydrogen-dispensing hose |
| US10584810B2 (en) | 2015-06-09 | 2020-03-10 | The Yokohama Rubber Co., Ltd. | Hydrogen-dispensing hose |
| CN104964103A (en) * | 2015-06-12 | 2015-10-07 | 苏州市大力电器有限公司 | High-strength hydraulic oil pipe |
| CN105042220A (en) * | 2015-08-20 | 2015-11-11 | 山东悦龙橡塑科技有限公司 | Fire fighting system applied to offshore drilling platform, fireproof hose assembly for dangerous areas of offshore drilling platform and manufacturing method of fireproof hose assembly |
| CN105179831A (en) * | 2015-08-20 | 2015-12-23 | 山东悦龙橡塑科技有限公司 | Hose assembly applied to replenishment and crossover conveying system of marine drilling platform and manufacturing method of hose assembly |
| JP2021067312A (en) * | 2019-10-23 | 2021-04-30 | 横浜ゴム株式会社 | Method for setting minimum bending radius of hose, and hose |
| WO2022123906A1 (en) * | 2020-12-11 | 2022-06-16 | 株式会社ブリヂストン | Multilayer hose |
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