JP6399544B2 - Flexible tubular body inlet device in flexible tubular body turning device - Google Patents
Flexible tubular body inlet device in flexible tubular body turning device Download PDFInfo
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- JP6399544B2 JP6399544B2 JP2014172240A JP2014172240A JP6399544B2 JP 6399544 B2 JP6399544 B2 JP 6399544B2 JP 2014172240 A JP2014172240 A JP 2014172240A JP 2014172240 A JP2014172240 A JP 2014172240A JP 6399544 B2 JP6399544 B2 JP 6399544B2
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Description
本発明は、可撓性筒状体の連続式の裏返し装置における、可撓性筒状体導入口装置に関するものである。 The present invention relates to a flexible tubular body inlet device in a continuous turnover device of a flexible tubular body.
本発明における可撓性筒状体の裏返し装置は、製造の都合により内外面を逆に製造されたホースを裏返して使用状態とする場合や、管路更生工法において、管路内に内張り材を引き込んで挿入する方法において使用され、さらにはホースを必要な場所に敷設するためにも使用される。 The inside-out apparatus for a flexible cylindrical body according to the present invention is a case where a hose produced by reversing the inner and outer surfaces for the convenience of production is turned over and put into use, or in the pipeline rehabilitation method, a lining material is provided in the pipeline. It is used in the method of retracting and inserting, and it is also used for laying the hose where necessary.
可撓性筒状体の連続式の裏返し装置は、図４に示すように、圧力容器１の後部から可撓性筒状体２を挿入して圧力容器１を貫通させ、当該可撓性筒状体２の先端を圧力容器１の先端部に環状に且つ気密に固定し、圧力容器１に設けられた圧力流体送入口３から圧力容器１内に圧力流体を送入することにより、圧力容器１内に流体圧力を作用させ、可撓性筒状体２の前記環状固定部分に形成される折り返し部分４において可撓性筒状体２を内側が外側となるように反転させながら、その折り返し部分４を前進せしめ、最終的に可撓性筒状体２全体を裏返すものである。 As shown in FIG. 4, the flexible tubular body reversing device inserts the flexible tubular body 2 from the rear part of the pressure vessel 1 to penetrate the pressure vessel 1, and The tip of the body 2 is annularly and airtightly fixed to the tip of the pressure vessel 1, and the pressure fluid is fed into the pressure vessel 1 from the pressure fluid inlet 3 provided in the pressure vessel 1. 1, fluid pressure is applied to the inside of the flexible tubular body 2, and the flexible tubular body 2 is turned upside down so that the inside of the flexible tubular body 2 is turned outside. The part 4 is advanced, and finally the entire flexible cylindrical body 2 is turned over.
同様の裏返し装置としては、特公昭４０−１２６５５号公報に示されるように、圧力容器内にコイル状に巻回した可撓性筒状体を収容しておき、その圧力容器のノズルに可撓性筒状体の先端を管状に固定し、前記圧力容器内に圧力流体を送入して可撓性筒状体を裏返す、単式裏返し装置も知られている。 As a similar reversing device, as shown in Japanese Patent Publication No. 40-12655, a flexible cylindrical body wound in a coil shape is accommodated in a pressure vessel, and the nozzle of the pressure vessel is flexible. There is also known a single-type reversing device in which the distal end of the tubular member is fixed in a tubular shape, and pressure fluid is fed into the pressure vessel to turn the flexible tubular member upside down.
しかしながらかかる単式の装置では、長尺の可撓性筒状体を裏返すためにはそれを収容することができる大型の装置を必要とするため、小型の装置で長尺の可撓性筒状体を自由に裏返すことのできる前述の連続式の装置が望ましい。 However, in such a single device, in order to turn the long flexible tubular body upside down, a large device that can accommodate the long flexible tubular body is required. It is desirable to use the above-mentioned continuous apparatus that can turn over the surface freely.
しかしながら一方では、前述のような連続式の裏返し装置においては、装置の後部に圧力容器１内に可撓性筒状体２を導入する可撓性筒状体導入口５としての開口部が必要となり、当該開口部と可撓性筒状体との間を確実にシールすることが困難である。シールが不完全であると圧力容器１内の圧力流体が当該開口部から後方に噴出し、圧力容器１内の圧力が低下すると共に、激しい騒音を生じる可能性が高い。 However, on the other hand, in the above-described continuous turnover device, an opening as the flexible cylindrical body inlet 5 for introducing the flexible cylindrical body 2 into the pressure vessel 1 is required at the rear of the apparatus. Thus, it is difficult to reliably seal between the opening and the flexible cylindrical body. If the seal is incomplete, the pressure fluid in the pressure vessel 1 is ejected rearward from the opening, and the pressure in the pressure vessel 1 is reduced, and there is a high possibility that intense noise is generated.
そこで前述のような連続式の可撓性筒状体の裏返し装置における、圧力容器１に可撓性筒状体２を導入する導入口の構造として、実開平３‐１０６０２６号公報に記載されたものが知られている。 Therefore, in the continuous flexible cylindrical body turning device as described above, the structure of the introduction port for introducing the flexible cylindrical body 2 into the pressure vessel 1 was described in Japanese Utility Model Laid-Open No. 3-1002626. Things are known.
このものは、扁平に折り畳んだ可撓性筒状体を圧力容器に導入するにあたり、当該扁平状態の可撓性筒状体の両面から楔状のシール板で挟み、当該シール板の基部に剛直な支持板を複数枚に分けて埋入してなるものである。 This is because when a flexible cylindrical body folded flat is introduced into a pressure vessel, it is sandwiched between both sides of the flat flexible cylindrical body by a wedge-shaped sealing plate and rigidly attached to the base of the sealing plate. The support plate is divided into a plurality of sheets and embedded.
しかしながらこの構造では、扁平状態の可撓性筒状体の両面からシール板で挟むものであるため、可撓性筒状体の耳部において三角形状の隙間が生じることが避けられず、その隙間か圧力容器内の圧力流体が噴出し、騒音を発生することが避けられない。 However, in this structure, since the flat flexible tubular body is sandwiched between the sealing plates from both sides, it is inevitable that a triangular gap is formed in the ear of the flexible tubular body. It is inevitable that the pressure fluid in the container will spout and generate noise.
前記発明においてはシール板に剛直な支持板を複数に分けて埋入しており、それによって可撓性筒状体の耳部における隙間が生じるのを軽減できるが、それでも完全とは言えずかなりの騒音を生じる。 In the above invention, a rigid support plate is embedded in the seal plate in a plurality of parts, thereby reducing the occurrence of gaps in the ears of the flexible cylindrical body, but it is still not quite complete. Produces noise.
本発明はかかる事情に鑑みなされたものであって、圧力容器１における可撓性筒状体導入口５をさらに改善し、導入口５からの後方への圧力流体の放出を低下させ、騒音をさらに低減させることを目的とするものである。 The present invention has been made in view of such circumstances, and further improves the flexible cylindrical body inlet 5 in the pressure vessel 1, reduces the discharge of pressure fluid from the inlet 5 to the rear, and reduces noise. The purpose is to further reduce.
而して本発明は、可撓性筒状体を圧力容器の後部に形成された可撓性筒状体導入口から挿入し、圧力容器を貫通させて当該圧力容器の先端部に可撓性筒状体の先端を環状に固定し、圧力容器内に圧力流体を圧入して、前記可撓性筒状体の先端部に形成される折り返し部分において内側が外側となるように反転しながら前記折り返し部分を前進させ、可撓性筒状体を裏返す装置における前記可撓性筒状体導入口装置において、前記圧力容器の後端部に剛直な鏡板を設け、当該鏡板に前記可撓性筒状体の折り畳み厚さの１〜３倍の幅と、前記可撓性筒状体の折り畳み幅より僅かに大きい長さを有する長孔を形成し、当該長孔をゴム板で閉塞すると共に、当該ゴム板に前記可撓性筒状体の折り畳み幅より僅かに小さい長さを有するスリットを形成してなることを特徴とするものである。 Thus, in the present invention, the flexible cylindrical body is inserted from the flexible cylindrical body inlet formed at the rear portion of the pressure vessel, and the pressure vessel is penetrated to be flexible at the tip portion of the pressure vessel. The tip of the cylindrical body is fixed in an annular shape, a pressure fluid is press-fitted into the pressure vessel, and the inside of the folded portion formed at the tip of the flexible cylindrical body is reversed so that the inside is the outside. In the flexible cylindrical body inlet device in the apparatus for advancing the folded portion and turning over the flexible cylindrical body, a rigid end plate is provided at a rear end portion of the pressure vessel, and the flexible cylinder is provided on the end plate Forming a long hole having a width of 1 to 3 times the folding thickness of the body and a length slightly larger than the folding width of the flexible tubular body, and closing the long hole with a rubber plate; A slit having a length slightly smaller than the folding width of the flexible cylindrical body is formed on the rubber plate. Those characterized by comprising.
本発明においては、前記ゴム板を、前記鏡板と当該鏡板の圧力容器における内側に配置された剛直な支持板との間に挟持してなるものとすることが好ましい。また前記ゴム板の厚みが、前記可撓性筒状体の折り畳み厚さの１〜３倍であることが好ましい。 In the present invention, it is preferable that the rubber plate is sandwiched between the end plate and a rigid support plate disposed inside the pressure vessel of the end plate. Moreover, it is preferable that the thickness of the said rubber plate is 1-3 times the folding thickness of the said flexible cylindrical body.
本発明によれば、可撓性筒状体を通す開口部が単なるスリットであるため、可撓性筒状体の耳部において三角形状の隙間が生じることがなく、後方への圧力流体の放出がほとんど生じることがない。 According to the present invention, since the opening through which the flexible cylindrical body passes is merely a slit, there is no triangular gap at the ear of the flexible cylindrical body, and the release of pressure fluid to the rear Almost never occurs.
以下本発明を図面に基づいて説明する。図１及び図２に示すように、圧力容器１の後端にポリアセタール樹脂などの剛直な素材よりなる鏡板６を設け、前記圧力容器１の後端に形成されたフランジ７とボルトナット８により固定されている。
The present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the end plate 6 made of a rigid material such as polyacetal resin is provided at the rear end of the pressure vessel 1 and fixed by a
そして前記鏡板６の中央には長孔９が形成されている。当該長孔９は図３に示すように、可撓性筒状体２の折り畳み厚さｔ２の１〜３倍の幅ｔ１を有しており、その長さＬ１は可撓性筒状体２の折り畳み幅Ｌ２より僅かに大きいものとなっている。 A long hole 9 is formed in the center of the end plate 6. As shown in FIG. 3, the long hole 9 has a width t 1 that is 1 to 3 times the folding thickness t 2 of the flexible cylindrical body 2, and the length L 1 is a flexible cylinder. from folding width L 2 of the shaped body 2 has slightly become larger.
そして前記鏡板６における圧力容器１の内側にゴム板１０が配置され、当該ゴム板１０はさらにその圧力容器１の内側に配置された、金属製の剛直な支持板１１と前記鏡板６との間に挟持され、固定されている。なお図１及び図２における１２は、支持板１１とフランジ７との間をシールするクッションである。
A rubber plate 10 is disposed inside the pressure vessel 1 in the end plate 6, and the rubber plate 10 is further disposed between the rigid support plate 11 made of metal and the end plate 6 disposed inside the pressure vessel 1. It is sandwiched between and fixed. In addition, 12 in FIG.1 and FIG.2 is a cushion which seals between the support plate 11 and the
そして前記ゴム板１０は、鏡板６と支持板１１との間に挟持されて固定されており、当該ゴム板１０における前記長孔９内の位置には、前記可撓性筒状体２の折り畳み幅Ｌ２より僅かに小さい長さＬ３を有するスリット１３が形成されている。 The rubber plate 10 is sandwiched and fixed between the end plate 6 and the support plate 11, and the flexible tubular body 2 is folded at a position in the long hole 9 in the rubber plate 10. slit 13 having a slightly smaller length L 3 than the width L 2 is formed.
このスリット１３は、前記ゴム板１０の所定の位置に、所定の長さに亙ってカッターナイフなどによって貫通させることにより形成されるものであって、そのスリット１３には幅を有しない。 The slit 13 is formed by passing a predetermined length of the rubber plate 10 with a cutter knife or the like over a predetermined length, and the slit 13 has no width.
前記ゴム板１０は、前記可撓性筒状体２の折り畳み厚さと同程度から３倍程度の厚みを有するものとするのが好ましい。ゴム板１０の厚みが小さいと圧力容器１内の流体圧力により後向きに捲れる可能性があり、また大き過ぎると後述するスリット１３に可撓性筒状体２を挿通するのが困難となる。 It is preferable that the rubber plate 10 has a thickness that is approximately the same as the folding thickness of the flexible tubular body 2 to about 3 times. If the thickness of the rubber plate 10 is small, there is a possibility that the rubber plate 10 will be squeezed backward due to the fluid pressure in the pressure vessel 1, and if it is too large, it will be difficult to insert the flexible cylindrical body 2 into a slit 13 described later.
而して本発明の可撓性筒状体の裏返し装置を使用するには、圧力容器１の後方から、前記鏡板６の長孔９を通して可撓性筒状体２の先端を差し込み、さらにゴム板１０のスリット１３を貫通させる。 Thus, in order to use the flexible tubular body turning device of the present invention, the distal end of the flexible tubular body 2 is inserted from the rear of the pressure vessel 1 through the long hole 9 of the end plate 6, and further the rubber. The slit 13 of the board 10 is penetrated.
このとき、前記スリット１３は前述のように幅を有しないので、図１及び図２に示すように、可撓性筒状体２がスリット１３を押し拡げ、ゴム板１０の有するゴム弾性により可撓性筒状体２によってスリット１３の縁が前方に向かって捲れ返ることにより、当該スリット１３を可撓性筒状体２が貫通することができる。 At this time, since the slit 13 does not have a width as described above, the flexible tubular body 2 expands the slit 13 as shown in FIG. 1 and FIG. When the edge of the slit 13 turns back toward the front by the flexible cylindrical body 2, the flexible cylindrical body 2 can penetrate the slit 13.
そして可撓性筒状体２の先端を圧力容器１の先端部に管状に固定し、圧力流体送入口３から圧力容器１内に圧力流体を送入することにより、圧力容器１内に流体圧力を作用させる。これにより、可撓性筒状体２の先端部に形成される折り返し部分４において可撓性筒状体２が内側が外側となるように反転しつつ、当該折り返し部分４が前方に向かって進行し、最終的に可撓性筒状体２が全長に亙って裏返る。 Then, the distal end of the flexible cylindrical body 2 is fixed in a tubular shape to the distal end portion of the pressure vessel 1, and the pressure fluid is fed into the pressure vessel 1 from the pressure fluid inlet 3, thereby fluid pressure in the pressure vessel 1. Act. As a result, in the folded portion 4 formed at the distal end portion of the flexible cylindrical body 2, the folded portion 4 advances forward while the flexible tubular body 2 is reversed so that the inside is the outside. Finally, the flexible cylindrical body 2 is turned over over the entire length.
このときゴム板１０のスリット１３は圧力容器１の内側に向かって捲れ返っているので、そのゴム板１０のゴム弾性により可撓性筒状体２の腹部に圧接せしめられており、そこから圧力容器１内の圧力流体が漏出することはない。 At this time, since the slit 13 of the rubber plate 10 turns back toward the inside of the pressure vessel 1, it is pressed against the abdomen of the flexible cylindrical body 2 by the rubber elasticity of the rubber plate 10, and the pressure from there The pressure fluid in the container 1 does not leak out.
また前記スリット１３の長さＬ３が可撓性筒状体２の折り畳み幅Ｌ２よりわずかに小さいので、可撓性筒状体２の耳部においてもゴム板１０のスリット１３を押し拡げ、図２に示すように圧力容器１の内側に向かって捲れ返り、そのゴム弾性により可撓性筒状体２の耳部に圧接せしめられ、前記従来例の装置のように三角形状の隙間が生じることがなく、圧力容器１内の圧力流体が漏出することがないのである。 Since the length L 3 of the slit 13 is flexible tubular body 2 of slightly less than the folded width L 2, also pushed open the slit 13 of the rubber plate 10 in the ear portion of the flexible tubular body 2, As shown in FIG. 2, it turns back toward the inner side of the pressure vessel 1 and is brought into pressure contact with the ears of the flexible cylindrical body 2 by its rubber elasticity, resulting in a triangular gap as in the conventional device. The pressure fluid in the pressure vessel 1 is not leaked.
従って本発明によれば、圧力容器１における可撓性筒状体導入口５において、可撓性筒状体２の腹部のみならず耳部においてもゴム板１０のスリット１３が可撓性筒状体２に密着し、そこに従来例におけるような三角形状の隙間を生じることがなく、圧力容器１内の圧力流体が後方に噴き出すことがなく、騒音が生じるのを最大限度防止することができるのである。 Therefore, according to the present invention, the slit 13 of the rubber plate 10 is formed not only in the abdomen but also in the ear of the flexible cylindrical body 2 at the flexible cylindrical body inlet 5 in the pressure vessel 1. It adheres to the body 2 and does not produce a triangular gap as in the conventional example, and the pressure fluid in the pressure vessel 1 does not blow out rearward, and noise can be prevented to the maximum extent. It is.
１ 圧力容器
２ 可撓性筒状体
３ 圧力流体送入口
４ 折り返し部分
５ 導入口
６ 鏡板
９ 長孔
１０ ゴム板
１１ 支持板
１３ スリット
DESCRIPTION OF SYMBOLS 1 Pressure vessel 2 Flexible cylindrical body 3 Pressure fluid inlet 4 Folding part 5 Inlet 6 End plate 9 Long hole 10 Rubber plate 11 Support plate 13 Slit
Claims (3)
The flexible cylindrical body (2) is inserted from the flexible cylindrical body inlet (5) formed in the rear part of the pressure vessel (1), and is passed through the pressure vessel (1). ) Is fixed to the tip of the flexible tubular body (2) in an annular shape, and a pressure fluid is press-fitted into the pressure vessel (1), and the flexible tubular body (2) is inserted into the tip of the flexible tubular body (2). Introducing the flexible tubular body in the apparatus for turning the flexible tubular body (2) forward by moving the folded portion (4) forward while inverting so that the inside of the folded portion (4) is the outside. In the apparatus for forming the mouth (5) , a rigid end plate (6) is provided at the rear end of the pressure vessel (1), and the folding thickness of the flexible cylindrical body (2) is provided on the end plate (6). And a long hole (9) having a width slightly larger than the folding width of the flexible tubular body (2), and forming the long hole (9) The rubber plate (10) is closed and a slit (13) having a length slightly smaller than the folding width of the flexible cylindrical body (2) is formed in the rubber plate (10). A flexible cylindrical body inlet device in the inside-out apparatus of the flexible cylindrical body (2)
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| JP2014172240A JP6399544B2 (en) | 2014-08-27 | 2014-08-27 | Flexible tubular body inlet device in flexible tubular body turning device |
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| JP6399544B2 true JP6399544B2 (en) | 2018-10-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS62189141A (en) * | 1986-02-14 | 1987-08-18 | Yano Giken Kk | Lining hose loading device for patching inner surface of tube |
| JPH0277384U (en) * | 1988-12-05 | 1990-06-13 | ||
| JPH03106026U (en) * | 1990-02-19 | 1991-11-01 | ||
| JP3117922B2 (en) * | 1996-12-26 | 2000-12-18 | 東京瓦斯株式会社 | Inverter seal member |
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