JPH0652112B2 - Detachment prevention device for ultra-high pressure hoses - Google Patents
Detachment prevention device for ultra-high pressure hosesInfo
- Publication number
- JPH0652112B2 JPH0652112B2 JP24022090A JP24022090A JPH0652112B2 JP H0652112 B2 JPH0652112 B2 JP H0652112B2 JP 24022090 A JP24022090 A JP 24022090A JP 24022090 A JP24022090 A JP 24022090A JP H0652112 B2 JPH0652112 B2 JP H0652112B2
- Authority
- JP
- Japan
- Prior art keywords
- hose
- prevention device
- ultra
- angle
- high 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.)
- Expired - Fee Related
Links
- 230000002265 prevention Effects 0.000 title claims description 22
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000009954 braiding Methods 0.000 claims description 8
- 239000000969 carrier Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は超高圧ホースの接続部における離脱を防止す
るために該ホース端部に設けられる超高圧ホース用離脱
防止装置に関する。Description: TECHNICAL FIELD The present invention relates to a disconnection prevention device for an ultra-high pressure hose, which is provided at an end of the hose to prevent disconnection at the connection of the ultra-high pressure hose.
（従来の技術） 油圧機器、ウォータージェット装置等には超高圧ホース
が用いられる。例えば、コンクリートの切断やビルの洗
浄等を行うウォータージェット装置には圧力発生装置と
ノズルとの間に柔軟性を有する超高圧ホースが用いられ
る。(Prior Art) Ultra-high pressure hoses are used for hydraulic equipment, water jet devices and the like. For example, an ultra-high pressure hose having flexibility between a pressure generator and a nozzle is used for a water jet device that cuts concrete or cleans a building.
このような超高圧ホースはゴムまたはゴム状弾性体より
なる管状体外周面にワイヤーや繊維のストランドを互い
に撚り合わせた補強コードを螺旋に巻回した補強層を形
成し、この補強層の外側に被覆層を設けてなるホース本
体に接続用金具を固着してなる。そして、補強層を２層
以上形成する場合には上下における螺旋巻きは逆向きに
形成される。Such an ultra-high pressure hose has a reinforcing layer formed by spirally winding a reinforcing cord in which strands of wires or fibers are twisted with each other on the outer peripheral surface of a tubular body made of rubber or a rubber-like elastic body, and the outer side of the reinforcing layer. A metal fitting is fixed to a hose body provided with a coating layer. When two or more reinforcing layers are formed, the spiral windings on the upper and lower sides are formed in opposite directions.
これらの超高圧ホースは、例えば、３００kg/cm2〜３０
００kg/cm2の圧力で常用されるので、このような超高圧
に耐え得るように製造されているものの、長時間使用し
ていると疲労によって破壊が生じるおそれがある。この
破壊はホース本体自体、あるいはホース本体と接続用金
具との接続部において生じる。These ultra-high pressure hoses are, for example, 300 kg / cm 2 to 30
Since it is usually used at a pressure of 00 kg / cm 2 , it is manufactured to withstand such an ultrahigh pressure, but if it is used for a long time, it may be broken due to fatigue. This breakage occurs at the hose body itself or at the connection between the hose body and the connecting fitting.
（発明が解決しようとする課題） 破壊が生じた場合、通常では接続用金具とホース本体と
の間で離脱する恐れはないが、何等かの要因で接続用金
具から離脱した際には、超高圧水によりホースの端部が
激しく動き、あるいはホースが接続用金具をつけたまま
飛んで行くことが考えられきわめて危険である。(Problems to be solved by the invention) Normally, when a breakage occurs, there is no fear of disconnection between the connection fitting and the hose body, but if it is disconnected from the connection fitting for some reason, the It is extremely dangerous because the end of the hose may move violently due to high-pressure water, or the hose may fly away with the connecting fittings attached.
このような問題を解決するための離脱防止機構が特開昭
６４−２１２９１号公報において提案されている。この
離脱防止機構は、ホース外周面に摩擦面を有するスリー
ブと、前記スリーブを保持するボディ金具と、前記ボデ
ィ金具に螺合するユニオン金具とからなるアンカーを設
け、該アンカーを連結材で連結してなるものである。A separation prevention mechanism for solving such a problem is proposed in Japanese Patent Laid-Open No. 64-21291. This separation prevention mechanism is provided with an anchor including a sleeve having a friction surface on the outer peripheral surface of the hose, a body metal fitting for holding the sleeve, and a union metal fitting screwed to the body metal fitting, and connecting the anchor with a connecting material. It will be.
しかしながら、アンカーを構成するスリーブのホース外
周面への噛み込む力の調整が困難であるとともに、ホー
ス本体は水圧の増減によって膨張、縮小を繰り返すので
前記スリーブとの間で疲労が発生し、安全性を損なう恐
れがある。また、ホース外周面へのアンカーの取り付け
に手間がかかるという問題がある。However, it is difficult to adjust the force of the sleeve that constitutes the anchor to the outer peripheral surface of the hose, and the hose body repeatedly expands and contracts due to increase and decrease in water pressure, which causes fatigue between the sleeve and the safety. May damage the Further, there is a problem that it takes time to attach the anchor to the outer peripheral surface of the hose.
この発明は上記の点に鑑みてなされたもので、ホース本
体の機能を損なうことなく、構造が簡単で安全性に優れ
た超高圧ホース用離脱防止装置を提供することを目的と
するものである。The present invention has been made in view of the above points, and an object thereof is to provide a disconnection prevention device for an ultra-high pressure hose having a simple structure and excellent safety without impairing the function of the hose body. .
（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に次のような構成と
した。(Means for Solving the Problem) In order to achieve the above object, the present invention has the following configuration.
即ち、ワイヤーを筒状に編組みした筒状部と、一端部の
ワイヤーを紐状に束ねて先端部に輪を形成した連結部と
からなり、前記筒状部にホース本体と接続用金具の一部
を挿入して取り付けたことを特徴とする。That is, it is composed of a tubular portion in which wires are braided in a tubular shape, and a connecting portion in which wires at one end are bundled in a string shape to form a ring at the distal end, and the tubular portion has a hose body and a connection metal fitting. It is characterized by inserting a part of it and attaching it.
そして、前記筒状部はワイヤー線径１．５φ、打込本数
２本、キャリア数１０個で編組みされ、ホース挿入後の
軸線に対する編組み角度を製造時の編組み角度の３０〜
１３７％アップとし、最大角度を静止角度以下とするこ
とが好ましい。The tubular portion is braided with a wire wire diameter of 1.5φ, two driving wires, and ten carriers, and the braid angle with respect to the axis line after the hose is inserted is 30 to 30
It is preferable to increase by 137% and the maximum angle be equal to or less than the static angle.
（作用） 上記構成によると、編組みからなる筒状体であるから、
圧力の増減によりホース径と一体に径が変化し、また、
軸方向への引張力が生じると縮径することによりホース
に締付力が働き、押圧保持することになり、ホースの離
脱防止装置として有効に働く。(Operation) According to the above configuration, since it is a braided tubular body,
The diameter changes integrally with the hose diameter as the pressure increases and decreases.
When a tensile force in the axial direction is generated, the diameter of the hose is reduced to exert a tightening force on the hose and press and hold the hose, which effectively functions as a hose separation preventing device.
（実施例） 以下、この発明を図面に示す実施例に基づき説明する。(Example) Hereinafter, the present invention will be described based on an example shown in the drawings.
第１図に示すように、ホース本体１は接続用金具３に固
着されており、前記ホース本体１から接続用金具３にか
けて離脱防止装置５が取り付けられている。As shown in FIG. 1, the hose body 1 is fixed to a connecting fitting 3, and a detachment preventing device 5 is attached from the hose body 1 to the connecting fitting 3.
離脱防止装置５はワイヤーを筒状に編組みした筒状部７
と、前記筒状部７の接続用金具３側の編組みを解し、こ
れを紐状に束ねて先端部に輪９を形成した連結部11とか
らなる。連結部11は１つでもよいが、好ましくは２つ〜
４つ形成する。筒状部７はホース本体１の外周面に密着
して挿入されている。The detachment prevention device 5 includes a tubular portion 7 in which a wire is braided in a tubular shape.
And the connecting portion 11 in which the braid of the tubular portion 7 on the side of the connecting fitting 3 is unwound and bundled in a string shape to form a ring 9 at the tip portion. The number of connecting portions 11 may be one, but preferably two or more.
Form four. The tubular portion 7 is inserted in close contact with the outer peripheral surface of the hose body 1.
次に、前記筒状部７の編組みは角度（軸線に対する角
度）が小さいとホース本体１の挿入が容易であるがホー
ス本体１との軸方向における摩擦力が小さいために引抜
性は弱くなる。逆に、編組み角度が大きいとホース本体
１への挿入は困難であるものの摩擦力が大きいために引
抜性は強くなる。Next, if the braid of the tubular portion 7 has a small angle (angle with respect to the axis), the hose body 1 can be easily inserted, but the frictional force with the hose body 1 in the axial direction is small, so that the pullability is weakened. . On the contrary, if the braid angle is large, it is difficult to insert the hose into the hose body 1 but the frictional force is large, so that the pulling out property becomes strong.
このように、ホース本体１及び接続用金具３を挿入する
編組みの筒状部７と一端部に形成した連結部11により離
脱防止装置５を構成した場合には、離脱防止装置５は次
のように作用する。In this way, when the detachment prevention device 5 is configured by the tubular portion 7 of the braid into which the hose body 1 and the connection fitting 3 are inserted and the connecting portion 11 formed at one end, the detachment prevention device 5 is Acts like.
即ち、接続用金具３とホース本体１との間に離脱が生じ
た場合には、ホース本体１と離脱防止装置とは密着して
いるからその摩擦力によってホース本体１の軸方向にお
ける編組み角度が小さくなり、ホース本体１の外周面に
締付力が働き摩擦力が増大するから筒状部７は一層強く
保持することになる。一方、通常使用時には、圧力が増
減しても筒状部７の編組み角度が変化することによって
ホース本体１の膨張、収縮を十分吸収することができホ
ースに食い込むことがないから、ホース本体１に悪影響
を与えることはない。That is, when disconnection occurs between the connecting metal fitting 3 and the hose body 1, the hose body 1 and the separation preventing device are in close contact with each other, and the frictional force thereof causes the braid angle in the axial direction of the hose body 1. Becomes smaller and the tightening force acts on the outer peripheral surface of the hose body 1 to increase the frictional force, so that the tubular portion 7 is held more strongly. On the other hand, during normal use, the expansion and contraction of the hose body 1 can be sufficiently absorbed by the change in the braid angle of the tubular portion 7 even if the pressure increases or decreases, and the hose body 1 does not bite. Will not be adversely affected.
次に、離脱防止装置の締付力（摩擦力）について以下の
実験結果の表に基づいて説明する。Next, the tightening force (friction force) of the separation prevention device will be described based on the table of the following experimental results.
尚、上記表における判定結果は、○が優れている(300kg
f以上でも抜けなし）、△が良好(100〜200kgfで抜け
た）、×が劣っている(100kgf以下で抜けた）とした。 In addition, in the judgment result in the above table, ○ is excellent (300 kg
There were no omissions above f), Δ was good (out of 100-200kgf), and x was inferior (out of 100kgf or less).
また、上記NO.１の離脱防止装置は、ワイヤーの線径1.5
φ、打込本数２本、キャリア数１０個で、17.5φの鉄芯
に編組み製造した。上記NO.２の離脱防止装置は、ワイ
ヤーの線径1.0φ、打込本数２本、キャリア数１０個
で、11.0φの鉄芯に編組み製造した。In addition, the NO.1 separation prevention device has a wire diameter of 1.5.
φ, the number of driven pieces was 2 and the number of carriers was 10, and was manufactured by braiding on an iron core of 17.5φ. The NO.2 separation prevention device was manufactured by braiding an iron core of 11.0φ with a wire diameter of 1.0φ, two driving wires, and 10 carriers.
上記結果から、NO.２に示すように線径1.0φ、打込本数
２本、キャリア数１０個により編組みするのが好まし
く、ホース本体１を挿入した後の編組み角度はホース本
体１の軸方向に対して30度を越えた場合に最も強い締付
力が得られる。もっとも、静止角度(54度44分）を越え
ると編組みとしての復元力が失われるから、最大角度を
静止角度以下に押さえることが必要である。From the above results, it is preferable to braid with a wire diameter of 1.0φ, two driving lines, and ten carriers as shown in No. 2. The braiding angle after inserting the hose body 1 is the same as that of the hose body 1. The strongest tightening force is obtained when the angle exceeds 30 degrees with respect to the axial direction. However, if the static angle (54 degrees 44 minutes) is exceeded, the restoring force of the braid is lost, so it is necessary to keep the maximum angle below the static angle.
離脱防止装置５とホース本体１との密着性を考慮する
と、製造時の内径にホースを挿入するよりも拡径した状
態で挿入するのが好ましく、従って、製造時における編
組み角度とホース挿入時の編組み角度とは必ずしも一致
しない。上記実験結果からホース挿入後の編組み角度
は、製造時の編組み角度の３０〜１３７％アップ、好ま
しくは５０〜１００％アップとする。Considering the close contact between the detachment prevention device 5 and the hose body 1, it is preferable to insert the hose in the expanded state rather than the inner diameter in the manufacturing process. Does not necessarily match the braid angle of. From the above experimental results, the braid angle after the hose is inserted is 30 to 137% higher than the braid angle at the time of manufacturing, and preferably 50 to 100% higher.
次に、ホースの挿入方法について説明する。この発明で
は離脱防止装置は編組みの筒状体であって、密着性を考
慮して製造時よりも拡径した状態でホースを挿入するの
で、離脱防止装置にホースを直接挿入する他、第２図に
示すような方法により容易に挿入することができる。Next, a method of inserting the hose will be described. In this invention, the separation prevention device is a braided tubular body, and since the hose is inserted in a state in which the diameter is larger than that at the time of manufacturing in consideration of adhesion, in addition to directly inserting the hose into the separation prevention device, It can be easily inserted by the method shown in FIG.
即ち、筒状部７に製造時の鉄芯と同じか、やや細目の鉄
芯20を挿入し、一端を固定板21に当接し、他端を押圧板
23により挾持する。前記固定板21及び押圧板23は２つ割
に形成され、鉄芯20を上下方向から挾持している。次い
で、押圧板23を固定板21の方向に移動させると、筒状部
７の長さは縮小されるので編組み角度が次第に大きくな
り拡径することになる。そして、ホースを挿入するのに
十分な径まで拡径したところで、第２図（ロ）に示すよ
うに、固定板21および押圧板23を外方に広げて内径を大
きくするとともに、鉄芯20を抜き取る。その後、ホース
本体１を挿入し、固定板21と押圧板23による筒状部７の
挾持を解除し、さらに、接続用金具３まで移動させれば
よい。That is, an iron core 20 which is the same as or slightly finer than the iron core at the time of manufacture is inserted into the tubular portion 7, one end of which abuts on the fixing plate 21 and the other end of which is pressed by the pressing plate.
Hold by 23. The fixed plate 21 and the pressing plate 23 are formed in two, and hold the iron core 20 from above and below. Next, when the pressing plate 23 is moved in the direction of the fixed plate 21, the length of the tubular portion 7 is reduced, so that the braiding angle gradually increases and the diameter increases. Then, when the diameter is expanded to a diameter sufficient for inserting the hose, as shown in FIG. 2B, the fixing plate 21 and the pressing plate 23 are expanded outward to increase the inner diameter and the iron core 20. Pull out. After that, the hose body 1 may be inserted, the holding of the tubular portion 7 by the fixing plate 21 and the pressing plate 23 may be released, and the connecting metal fitting 3 may be moved.
上記方法により離脱防止装置５の筒状部７にホースを挿
入した場合には効率よく、しかも容易に挿入することが
できる。When the hose is inserted into the tubular portion 7 of the separation prevention device 5 by the above method, the hose can be inserted efficiently and easily.
次に、この発明に係る離脱防止装置５の使用例について
説明する。Next, an example of use of the separation prevention device 5 according to the present invention will be described.
第３図は接続用金具同志を連結し、ホース本体１とホー
ス本体１ａを接続した場合である。この場合には、離脱
防止装置５の輪９を連結具25により連結すればよい。輪
９の連結はそれぞれ対応する輪９ごとに連結具25により
連結してもよいが、輪９をまとめて１つの連結具25によ
り連結してもよい。FIG. 3 shows a case where the hose body 1 and the hose body 1a are connected by connecting the connection metal fittings. In this case, the wheel 9 of the detachment prevention device 5 may be connected by the connecting tool 25. The wheels 9 may be connected by the connecting tool 25 for each corresponding wheel 9, but the wheels 9 may be collectively connected by one connecting tool 25.
第４図は圧力発生装置27に直接接続した場合を示してい
る。この場合には、離脱防止装置５の輪９を圧力発生装
置27に設けたフック29にまとめて係止させればよい。FIG. 4 shows a case where the pressure generator 27 is directly connected. In this case, the wheels 9 of the separation prevention device 5 may be collectively locked to the hook 29 provided on the pressure generating device 27.
（発明の効果） 以上説明したように、この発明によれば、ホース本体と
接続用金具、または接続用金具同志の接続部が離脱した
場合にもホースの飛び出しやホース端部が激しく動くの
を防止することができる。(Effect of the Invention) As described above, according to the present invention, it is possible to prevent the hose from jumping out and the hose end to move violently even when the hose body and the connecting fitting or the connecting parts of the connecting fittings are separated from each other. Can be prevented.
また、編組みにより構成されているから、使用時のホー
スの膨張、収縮に対応することができ何等悪影響を与え
ることがない。Further, since the hose is constructed by braiding, it can cope with the expansion and contraction of the hose during use without any adverse effect.
さらに、ホースが離脱し軸方向に引張力が生じたときに
ホースを締め付けて保持するように働くので離脱防止装
置として有効である。Further, when the hose is detached and a tensile force is generated in the axial direction, it works to clamp and hold the hose, which is effective as a detachment prevention device.
第１図はこの発明の１実施例を示す全体概略図、第２図
はホースへの挿入方法を示す説明図、第３図及び第４図
は使用例を示し、第３図は接続用金具同志を接続した正
面図、第４図は装置に直接接続した一部断面正面図であ
る。 １はホース本体、３は接続用金具、５は離脱防止装置、
11は連結部FIG. 1 is an overall schematic view showing an embodiment of the present invention, FIG. 2 is an explanatory view showing a method of inserting the hose, FIGS. 3 and 4 show usage examples, and FIG. 3 is a connecting fitting. FIG. 4 is a front view in which the two are connected to each other, and FIG. 4 is a partial cross-sectional front view in which the devices are directly connected to each other. 1 is a hose body, 3 is a connecting fitting, 5 is a separation prevention device,
11 is a connecting part
Claims (2)
端部のワイヤーを紐状に束ねて先端部に輪を形成した連
結部とからなり、前記筒状部にホース本体と接続用金具
の一部を挿入して取り付けたことを特徴とする超高圧ホ
ース用離脱防止装置。1. A tubular portion formed by braiding wires in a tubular shape, and a connecting portion in which wires at one end are bundled in a string shape to form a ring at a distal end, and the tubular portion is connected to a hose body. A disconnection prevention device for ultra-high pressure hoses, characterized in that a part of the metal fittings is inserted and attached.
本数２本、キャリア数１０個で編組みされ、ホース挿入
後の軸線に対する編組み角度を製造時の編組み角度の３
０〜１３７％アップとし、最大角度を静止角度以下とし
たことを特徴とする請求項１記載の超高圧ホース用離脱
防止装置。2. The tubular portion is braided with a wire wire diameter of 1.5φ, a driving number of 2 and a number of carriers of 10, and the braiding angle with respect to the axis line after the hose is inserted is 3 of the braiding angle at the time of manufacturing.
The detachment prevention device for an ultra-high pressure hose according to claim 1, wherein the maximum angle is set to 0 to 137% and the maximum angle is set to a static angle or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24022090A JPH0652112B2 (en) | 1990-09-11 | 1990-09-11 | Detachment prevention device for ultra-high pressure hoses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24022090A JPH0652112B2 (en) | 1990-09-11 | 1990-09-11 | Detachment prevention device for ultra-high pressure hoses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04119287A JPH04119287A (en) | 1992-04-20 |
| JPH0652112B2 true JPH0652112B2 (en) | 1994-07-06 |
Family
ID=17056240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24022090A Expired - Fee Related JPH0652112B2 (en) | 1990-09-11 | 1990-09-11 | Detachment prevention device for ultra-high pressure hoses |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0652112B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2810386B1 (en) * | 2000-06-16 | 2002-12-20 | M R Ind | DEVICE FOR SECURING THE CONNECTION OF TWO LINES OF FLEXIBLE PIPES |
| JP5542551B2 (en) * | 2010-07-09 | 2014-07-09 | 株式会社ブリヂストン | Hose restraint tool and hose with restraint tool |
| JP6671926B2 (en) * | 2015-10-30 | 2020-03-25 | アサヒビール株式会社 | Beverage transfer filling equipment |
| CN113819320A (en) * | 2021-10-25 | 2021-12-21 | 五行科技股份有限公司 | A connecting pipe assembly and a conveying pipeline |
-
1990
- 1990-09-11 JP JP24022090A patent/JPH0652112B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04119287A (en) | 1992-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |