JP5128220B2 - Hose with fittings - Google Patents

Hose with fittings Download PDF

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JP5128220B2
JP5128220B2 JP2007250032A JP2007250032A JP5128220B2 JP 5128220 B2 JP5128220 B2 JP 5128220B2 JP 2007250032 A JP2007250032 A JP 2007250032A JP 2007250032 A JP2007250032 A JP 2007250032A JP 5128220 B2 JP5128220 B2 JP 5128220B2
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hose
fitting
hose body
short
joint
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JP2009079709A (en
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章 堀本
信行 高橋
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Sakura Rubber Co Ltd
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Sakura Rubber Co Ltd
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Description

本発明は、例えば、消防ホース、流体輸送用ホース等のホース本体の端部を保護する短尺ホースを設けた継手金具付きホースに関する。   The present invention relates to a hose with a fitting fitting provided with a short hose that protects an end portion of a hose body such as a fire hose or a fluid transport hose.

例えば、消防ホース、流体輸送用ホースのホース本体は、たて糸とよこ糸を円筒状に織成したジャケットの少なくとも内側にゴムまたは合成樹脂からなるライニング層を設けて構成されている。このホース本体の端部には継手金具が取付けられており、継手金具同士を結合して複数本のホースを接続できるようになっている。   For example, hose bodies of fire hoses and fluid transport hoses are configured by providing a lining layer made of rubber or synthetic resin on at least the inside of a jacket in which warp yarns and weft yarns are woven into a cylindrical shape. A joint fitting is attached to the end of the hose body, and a plurality of hoses can be connected by joining the joint fittings together.

ホース本体の端部は継手金具によって拡径方向への膨張が抑制されているが、ホース本体は、加圧時に拡径方向に膨張するため、ホース本体の継手金具付近は、内外径が急激に変化して圧力損失の原因となるとともにホース本体から継手金具が脱落する原因となる。   Although the end of the hose body is restrained from expanding in the direction of diameter expansion by the fitting, the hose body expands in the direction of diameter expansion when pressurized. It will change and cause pressure loss, and will cause the fittings to fall off the hose body.

そこで、ホース本体の継手金具付近における内外径の急激な変化を抑制するために、ホース本体の端部に筒状織布を嵌合し、筒状織布によってホース本体の拡径方向への膨張を抑制するようにしたものが知られている（例えば、特許文献１参照。）。
特開２００７−７１３８５号公報 Therefore, in order to suppress a sudden change in the inner and outer diameters near the joint fitting of the hose body, a tubular woven fabric is fitted to the end of the hose body, and the tubular woven fabric expands the hose body in the diameter increasing direction. There is known one that suppresses (for example, see Patent Document 1).
JP 2007-71385 A

しかしながら、特許文献１は、ホース本体の外径に略等しい内径を有する筒状織布を製作し、この筒状織布をホース本体の端部に嵌合し、筒状織布の一端部を継手金具に設けた接続筒によって固定した構造である。   However, Patent Document 1 manufactures a tubular woven fabric having an inner diameter substantially equal to the outer diameter of the hose body, and fits the tubular woven fabric to the end portion of the hose body, It is a structure fixed by a connecting tube provided on the joint fitting.

従って、ホース本体の外径に合わして専用の筒状織布を製作する必要がある。また、筒状織布は、たて糸とよこ糸を織成した筒状織布であり、よこ糸のほつれ防止のために、樹脂等でほつれ防止加工をする必要があり、コストアップの原因となる。   Therefore, it is necessary to manufacture a dedicated tubular woven fabric in accordance with the outer diameter of the hose body. The tubular woven fabric is a tubular woven fabric obtained by weaving warp yarns and weft yarns. In order to prevent fraying of the weft yarns, it is necessary to prevent fraying with a resin or the like, which causes an increase in cost.

本発明は、前記事情に着目してなされたもので、その目的とするところは、ホース本体の端部に嵌合することにより、圧力損失を軽減でき、ホース本体の保護ができる継手金具付きホースを提供することにある。   The present invention has been made paying attention to the above circumstances, and the purpose thereof is to provide a fitting hose with a fitting that can reduce pressure loss and protect the hose body by being fitted to the end of the hose body. Is to provide.

前記目的を達成するために、請求項１の発明は、たて糸とよこ糸を円筒状に織成したジャケットの少なくとも内側にゴムまたは合成樹脂からなるライニング層を設けたホース本体と、前記ホース本体の端部に固定された継手金具と、前記ホース本体と内外径が略等しく形成されたところの、前記ホース本体を所定の長さに切断して前記ホース本体の端部における外周に嵌合された短尺ホースと、を具備したことを特徴とする継手金具付きホースにある。 In order to achieve the above object, the invention of claim 1 is characterized in that a hose body provided with a lining layer made of rubber or synthetic resin on at least an inner side of a jacket in which warp yarns and weft yarns are woven into a cylindrical shape, and an end portion of the hose body A joint hose fixed to the hose body and a short hose that is formed to have a substantially equal inner and outer diameter with the hose body and is cut into a predetermined length and fitted to the outer periphery at the end of the hose body And a hose with a fitting.

請求項２は、請求項１の前記短尺ホースの一端部は、前記ホース本体とともに前記継手金具に固定されていることを特徴とする。   A second aspect of the present invention is characterized in that one end of the short hose according to the first aspect is fixed to the joint fitting together with the hose body.

請求項３は、請求項１の前記短尺ホースは、前記継手金具とは分離されており、前記ホース本体との摩擦で軸方向に移動不能であることを特徴とする。   A third aspect of the present invention is characterized in that the short hose according to the first aspect is separated from the joint fitting and cannot move in the axial direction due to friction with the hose body.

請求項４の発明は、請求項１の発明において、前記短尺ホースの長さは、前記ホース本体の直径の１〜５倍であることを特徴とする。 The invention of claim 4 is characterized in that, in the invention of claim 1, the length of the short hose is 1 to 5 times the diameter of the hose body .

請求項５の発明は、請求項１の発明において、前記短尺ホースは、拡径状態で前記ホース本体の端部から該ホース本体に嵌合され、嵌合後、縮径して前記ホース本体に密に嵌合されていることを特徴とする。 The invention of claim 5 is the invention of claim 1, wherein the short hose is fitted to the hose body from the end of the hose body in an expanded state, and after fitting, the diameter is reduced to the hose body. It is characterized by being closely fitted .

請求項６は、請求項１の前記短尺ホースには、ホースメーカー、ホース所有者等が識別できる識別指標が表示されていることを特徴とする。 A sixth aspect of the present invention is characterized in that an identification index that can be identified by a hose manufacturer, a hose owner, or the like is displayed on the short hose of the first aspect.

本発明によれば、ホース本体の端部に短尺ホースを嵌合することにより、圧力損失を軽減でき、ホース本体の保護ができるという効果がある。   ADVANTAGE OF THE INVENTION According to this invention, there exists an effect that pressure loss can be reduced and a hose main body can be protected by fitting a short hose to the edge part of a hose main body.

以下、本発明の実施の形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１及び図２は継手金具付きホースの第１の実施形態を示し、図１は継手金具付きホースの半縦断側面図、図２は図１のＡ部を拡大した縦断側面図である。１１は例えば大量送水用消防ホースとして用いられる直径３００ｍｍの可撓性を有する継手金具付きホースであり、ホース本体１２は、ポリエステルフィラメントからなるたて糸とよこ糸を円筒状に織成したジャケット１３の内側及び外側にゴムまたは合成樹脂からなるライニング層１４を設けることにより構成されている。   1 and FIG. 2 show a first embodiment of a hose with a fitting, FIG. 1 is a half longitudinal side view of the hose with a fitting, and FIG. 2 is a longitudinal side view enlarging part A of FIG. Reference numeral 11 is a hose with a fitting fitting having a diameter of 300 mm used as a fire hose for mass water supply, for example. Is provided with a lining layer 14 made of rubber or synthetic resin.

さらに、ホース本体１２の端部には短尺ホース１５が嵌合されている。この短尺ホース１５はポリエステルフィラメントからなるたて糸とよこ糸を円筒状に織成したジャケット１６の内側及び外側にゴムまたは合成樹脂からなるライニング層１７を設けることにより構成されている。この短尺ホース１５はホース本体１２の外径と略同一の内径を有する筒状体であり、ホース本体１２を所定の長さに切断したものを使用することが可能である。   Further, a short hose 15 is fitted to the end of the hose body 12. The short hose 15 is configured by providing a lining layer 17 made of rubber or synthetic resin on the inside and outside of a jacket 16 in which warp yarns and weft yarns made of polyester filaments are woven in a cylindrical shape. The short hose 15 is a cylindrical body having an inner diameter substantially the same as the outer diameter of the hose body 12, and the hose body 12 cut into a predetermined length can be used.

短尺ホース１５はホース本体１２の外径と略同一の内径を有するが、ホース本体１２に対して短尺ホース１５を嵌合する際には可撓性を利用してホース本体１２を縮径方向に折り畳むことにより容易に嵌合できる。   The short hose 15 has an inner diameter substantially the same as the outer diameter of the hose body 12, but when the short hose 15 is fitted to the hose body 12, the hose body 12 is reduced in the direction of diameter reduction by utilizing flexibility. It can be easily fitted by folding.

ホース本体１２の端部には継手金具１８が設けられている。この継手金具１８は、アルミニウム等の金属材料からなる円筒状の継手本体１９と環状継手部材２０とからなり、継手本体１９の一端部には外周面に凹凸部２１ａを有する挿入筒部２１が設けられている。継手本体１９の基端部には環状凸部２２が設けられ、環状継手部材２０は環状凸部２２に係合した状態に回転自在に嵌合接続されている。   A joint fitting 18 is provided at the end of the hose body 12. The joint fitting 18 includes a cylindrical joint body 19 and an annular joint member 20 made of a metal material such as aluminum, and an insertion cylinder portion 21 having an uneven portion 21 a on the outer peripheral surface is provided at one end portion of the joint body 19. It has been. An annular convex portion 22 is provided at the base end portion of the joint main body 19, and the annular joint member 20 is rotatably connected in a state of being engaged with the annular convex portion 22.

継手本体１９の基端部の端面には環状凹部２３が設けられ、この環状凹部２３にはゴム製のシール材２４が嵌着されている。さらに、環状継手部材２０は、特許第３１０７５０７号公報で知られている結合金具と基本的に同一構造であり、環状継手部材２０の前端部は略円筒形をなし、その前端部には、それぞれ複数個の嵌合凸部２５が周方向に等間隔に一体に突設されている。   An annular recess 23 is provided on the end face of the base end portion of the joint body 19, and a rubber seal material 24 is fitted into the annular recess 23. Further, the annular joint member 20 has basically the same structure as the coupling fitting known from Japanese Patent No. 3107507, and the front end portion of the annular joint member 20 has a substantially cylindrical shape. A plurality of fitting convex portions 25 are integrally projected at equal intervals in the circumferential direction.

また、これらの嵌合凸部２５の間は嵌合凹部２６として形成されており、嵌合凸部２５の一方の側面２６ａには係止鉤部２７がそれぞれ形成されている。これらの嵌合凸部２５の他方の側面２６ｂの先端角部は円弧状に形成されてガイド部２８が形成されている。   Further, a space between these fitting convex portions 25 is formed as a fitting concave portion 26, and a locking collar portion 27 is formed on one side surface 26 a of the fitting convex portion 25. The leading end corners of the other side surface 26b of these fitting convex portions 25 are formed in an arc shape to form a guide portion 28.

そして、一対の環状継手部材２０の結合部が軸方向に衝合された場合には、例えば、一方の環状継手部材２０の嵌合凸部２５が他方の環状継手部材２０の嵌合凹部２６内に嵌合し、また他方の環状継手部材２０の嵌合凸部２５が一方の環状継手部材２０の嵌合凹部２６内に嵌合し、互いに相補形に嵌合する。同様に、一方の環状継手部材２０の嵌合凸部２５が他方の環状継手部材２０の嵌合凹部２６内に嵌合し、また他方の環状継手部材２０の嵌合凸部２５が一方の環状継手部材２０の嵌合凹部２６内に嵌合し、互いに相補形に嵌合するようになっている。   When the coupling portion of the pair of annular joint members 20 is abutted in the axial direction, for example, the fitting convex portion 25 of one annular joint member 20 is in the fitting concave portion 26 of the other annular joint member 20. In addition, the fitting convex part 25 of the other annular joint member 20 is fitted into the fitting concave part 26 of the one annular joint member 20, and is fitted in a complementary manner. Similarly, the fitting convex part 25 of one annular joint member 20 is fitted in the fitting concave part 26 of the other annular joint member 20, and the fitting convex part 25 of the other annular joint member 20 is one annular. The coupling member 20 is fitted in the fitting recess 26 and is fitted in a complementary manner.

前記継手本体１９の凹凸部２１ａを有する挿入筒部２１にはホース本体１２の端部が嵌合され、この嵌合部の外側には短尺ホース１５の端部が嵌合されている。さらに、継手本体１９の挿入筒部２１に対するホース本体１２及び短尺ホース１５の嵌合部２９は内周部に凹凸部３０ａを有するバインディング３０とボルト・ナット（図示しない）によって締付け固定されている。バインディング３０は周方向が３分割され、それぞれの端部をボルト・ナットによって結合されている。バインディング３０の外側には合成ゴム等からなる円環状の保護カバー３１が嵌着され、衝撃を緩和して継手金具１８を保護している。   The end portion of the hose body 12 is fitted to the insertion tube portion 21 having the uneven portion 21a of the joint body 19, and the end portion of the short hose 15 is fitted to the outside of the fitting portion. Furthermore, the fitting portion 29 of the hose body 12 and the short hose 15 with respect to the insertion cylinder portion 21 of the joint body 19 is fastened and fixed by a binding 30 having a concavo-convex portion 30a on the inner peripheral portion and a bolt / nut (not shown). The circumferential direction of the binding 30 is divided into three parts, and ends of the binding 30 are coupled by bolts and nuts. An annular protective cover 31 made of synthetic rubber or the like is fitted on the outside of the binding 30 to reduce the impact and protect the joint fitting 18.

バインディング３０をボルト・ナットによって締め付けると、ホース本体１２の端部に継手金具１８が結合され、同時に短尺ホース１５の端部も同時に締付け固定される。短尺ホース１５のバインディング３０による締め付けられる部分を除く長さＬは、ホース本体１２の直径の１〜５倍（本実施形態では、ホース本体１２の直径は３００ｍｍであるので、Ｌ＝３００〜１５００ｍｍ）であり、Ｌがホース本体１２の直径の１倍未満であると、加圧時にホース本体１２が拡径方向に膨張し、継手金具１８との間に急激な段差ができるのを抑制できず、圧力損失を低減できない。また、Ｌがホース本体１２の直径の５倍以上になると、ホース重量が増加し、取り扱い時の負担が大きくなる。   When the binding 30 is tightened with bolts and nuts, the joint fitting 18 is coupled to the end of the hose body 12, and at the same time, the end of the short hose 15 is also tightened and fixed. The length L of the short hose 15 excluding the portion to be tightened by the binding 30 is 1 to 5 times the diameter of the hose body 12 (in this embodiment, the diameter of the hose body 12 is 300 mm, so L = 300 to 1500 mm). When L is less than 1 time the diameter of the hose body 12, the hose body 12 expands in the diameter-expanding direction at the time of pressurization, and it is not possible to suppress a steep step between the joint fitting 18 and Pressure loss cannot be reduced. Moreover, when L becomes 5 times or more of the diameter of the hose body 12, the weight of the hose increases and the burden during handling increases.

このように構成された継手金具付きホース１１によれば、ホース本体１２の端部の継手金具１８付近には短尺ホース１５が嵌合されているため、加圧時にホース本体１２が拡径方向に膨張しようとしても、短尺ホース１５によって膨張を抑制できる。すなわち、ホース本体１２の端部付近においては、継手本体１９に対応する内腔部分からこの継手本体１９から離れるにしたがって徐々にホース本体１２の内腔が拡径し、継手本体１９付近のホース本体１２の内腔部分との間に急激な段差ができないため、圧力損失を低減できる。   According to the hose 11 with a joint metal fitting configured in this way, the short hose 15 is fitted in the vicinity of the joint metal fitting 18 at the end of the hose main body 12, so that the hose main body 12 extends in the diameter increasing direction when pressurized. Even when trying to expand, the short hose 15 can suppress expansion. That is, in the vicinity of the end of the hose body 12, the diameter of the hose body 12 gradually increases as the distance from the joint body 19 increases from the lumen corresponding to the joint body 19. Since there is no sharp step between the 12 lumen portions, pressure loss can be reduced.

しかも、ホース本体１２の外周面が継手金具１８の端面のエッジ部分に接触するのを短尺ホース１５が防止でき、ホース本体１２が継手金具１８のエッジ部分で損傷を受けることがない。   In addition, the short hose 15 can prevent the outer peripheral surface of the hose body 12 from coming into contact with the edge portion of the end surface of the joint fitting 18, and the hose body 12 is not damaged at the edge portion of the joint fitting 18.

図２は第２の実施形態を示し、継手金具付きホースの半縦断側面図である。第１の実施形態と同一構成部分は同一番号を付して説明を省略する。本実施形態は、ホース本体１２の端部に嵌合した短尺ホース１５を継手金具１９によってホース本体１２と一緒にバインディング３０で締め付けることなく、短尺ホース１５をホース本体１２に嵌合した状態のままフリーにしたものである。この短尺ホース１５においても、ホース本体１２の外径と略同一の内径を有する筒状体であり、ホース本体１２を所定の長さに切断したものを使用しており、しかも加圧時にはホース本体１２が拡径方向に膨張し、ホース本体１２の外周面で短尺ホース１５の内周面を押圧するため、短尺ホース１５が軸方向に移動することはなく、第１の実施形態と同様の効果が得られる。   FIG. 2 shows a second embodiment, and is a half vertical side view of a hose with a fitting. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, the short hose 15 fitted to the end of the hose body 12 is not fastened with the binding 30 together with the hose body 12 by the joint fitting 19, and the short hose 15 is still fitted to the hose body 12. It has been made free. The short hose 15 is also a cylindrical body having an inner diameter substantially the same as the outer diameter of the hose body 12, and is obtained by cutting the hose body 12 into a predetermined length. 12 expands in the diameter increasing direction and presses the inner peripheral surface of the short hose 15 with the outer peripheral surface of the hose body 12, so the short hose 15 does not move in the axial direction, and the same effect as in the first embodiment. Is obtained.

なお、ホース本体１２の端部に短尺ホース１５を嵌合することにより、短尺ホース１５の表面にホースメーカー、ホース所有者等が識別できる識別指標を付すことができる。ホースが識別されることにより、消火作業の準備段階や消火作業後の撤収作業の煩雑さを解消できる。   By fitting the short hose 15 to the end of the hose body 12, an identification index that can be identified by a hose manufacturer, a hose owner, or the like can be attached to the surface of the short hose 15. By identifying the hose, it is possible to eliminate the complexity of the preparation stage of the fire fighting work and the withdrawal work after the fire fighting work.

また、前記実施形態においては、大量送水用消防ホースについて説明したが、通常口径の消防ホースや石油等の流体輸送用ホースにおいても適用できる。   Moreover, although the said embodiment demonstrated the fire hose for mass water supply, it can apply also to the hose for fluid transports, such as a normal diameter fire hose and oil.

なお、本発明は前記実施形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化できる。また、前記実施形態に開示されている複数の構成要素の適宜な組合せにより種々の発明を形成できる。例えば、実施形態に示される全構成要素から幾つかの構成要素を削除してもよい。さらに、異なる実施形態に亘る構成要素を組み合わせてもよい。   Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, the constituent elements over different embodiments may be combined.

本発明の第１の実施形態を示し、継手金具付きホースの半縦断側面図。The 1st Embodiment of this invention is shown, and the semi-longitudinal side view of a hose with a fitting is shown. 同実施形態を示し、図１のＡ部を拡大した縦断側面図。The vertical side view which expanded the A section of FIG. 1 which showed the same embodiment. 本発明の第２の実施形態を示し、継手金具付きホースの半縦断側面図。The half longitudinal cross-sectional side view of the hose with a joint metal fitting which shows the 2nd Embodiment of this invention.

符号の説明Explanation of symbols

１１…継手金具付きホース、１２…ホース本体、１３、１６…ジャケット、１４、１７…ライニング層、１５…短尺ホース、１８…継手金具 DESCRIPTION OF SYMBOLS 11 ... Hose with a fitting metal fitting, 12 ... Hose body, 13, 16 ... Jacket, 14, 17 ... Lining layer, 15 ... Short hose, 18 ... Fitting metal fitting

Claims (6)

たて糸とよこ糸を円筒状に織成したジャケットの少なくとも内側にゴムまたは合成樹脂からなるライニング層を設けたホース本体と、
前記ホース本体の端部に固定された継手金具と、
前記ホース本体と内外径が略等しく形成されたところの、前記ホース本体を所定の長さに切断して前記ホース本体の端部における外周に嵌合された短尺ホースと、
を具備したことを特徴とする継手金具付きホース。 A hose body provided with a lining layer made of rubber or synthetic resin on at least the inside of a jacket in which warps and wefts are woven into a cylindrical shape;
A fitting fitting fixed to an end of the hose body;
The hose body and the inner and outer diameters are formed substantially equal, the hose body is cut into a predetermined length and the short hose fitted to the outer periphery at the end of the hose body,
A hose with a fitting. 前記短尺ホースの一端部は、前記ホース本体とともに前記継手金具に固定されていることを特徴とする請求項１記載の継手金具付きホース。   The hose with a joint fitting according to claim 1, wherein one end of the short hose is fixed to the joint fitting together with the hose body. 前記短尺ホースは、前記継手金具とは分離されており、前記ホース本体との摩擦で軸方向に移動不能であることを特徴とする請求項１記載の継手金具付きホース。   The hose with a joint fitting according to claim 1, wherein the short hose is separated from the joint fitting and cannot move in the axial direction due to friction with the hose body. 前記短尺ホースの長さは、前記ホース本体の直径の１〜５倍であることを特徴とする請求項１記載の継手金具付きホース。 The hose with a fitting according to claim 1, wherein the length of the short hose is 1 to 5 times the diameter of the hose body . 前記短尺ホースは、拡径状態で前記ホース本体の端部から該ホース本体に嵌合され、嵌合後、縮径して前記ホース本体に密に嵌合されていることを特徴とする請求項１記載の継手金具付きホース。 The short hose is fitted to the hose body from an end portion of the hose body in an expanded state, and after fitting, the diameter is reduced and the hose body is closely fitted to the hose body. A hose with a fitting according to 1. 前記短尺ホースには、ホースメーカー、ホース所有者等が識別できる識別指標が表示されていることを特徴とする請求項１記載の継手金具付きホース。 The hose with a fitting according to claim 1, wherein an identification index that can be identified by a hose manufacturer, a hose owner, or the like is displayed on the short hose.
JP2007250032A 2007-09-26 2007-09-26 Hose with fittings Active JP5128220B2 (en)

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JP6393354B1 (en) * 2017-03-22 2018-09-19 櫻護謨株式会社 Fire hose and method for manufacturing the same

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JPH102482A (en) * 1996-06-13 1998-01-06 Teikoku Sen I Co Ltd Fire hose
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