JP2007146977A - Structure and device for joining pipe body - Google Patents
Structure and device for joining pipe body Download PDFInfo
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- JP2007146977A JP2007146977A JP2005342710A JP2005342710A JP2007146977A JP 2007146977 A JP2007146977 A JP 2007146977A JP 2005342710 A JP2005342710 A JP 2005342710A JP 2005342710 A JP2005342710 A JP 2005342710A JP 2007146977 A JP2007146977 A JP 2007146977A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/0036—Joints for corrugated pipes
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- Joints That Cut Off Fluids, And Hose Joints (AREA)
Abstract
Description
本発明は、十分なシール性を維持した管体の継手構造および継手装置に関する。 The present invention relates to a pipe joint structure and a joint device that maintain sufficient sealing performance.
この種の継手構造としては、例えば隣合うホース端部にシート状のシール部材を少なくとも一周巻き付けた後、端部同士にわたって連結部材を外方側から締め付けてホース同士を連結するようにしていた。そして、ホース外面が凹凸状になっている場合、シール部材が凸部上部の頂部に点接触するため、シール作用を充分発揮させることができないことから、双方のホース端部の凹部にそれぞれ発泡材を注入してフラットにした上で、シート状のシール部材により連結部全体を覆った状態とし、連結部材により外方側から締め付けて連結する構造が提案されている(例えば、特許文献1参照。)。 As this type of joint structure, for example, a sheet-like seal member is wound at least once around adjacent hose ends, and then the connecting members are tightened from the outer side to connect the hoses together. When the hose outer surface is uneven, since the sealing member makes point contact with the top of the upper part of the convex part, the sealing function cannot be sufficiently exhibited. A structure has been proposed in which the entire connecting portion is covered with a sheet-like sealing member after being injected and flattened, and connected by being tightened from the outside by the connecting member (see, for example, Patent Document 1). ).
しかしながら、このようなフラットな端部外周面をシール部材を介して連結部材で締付けただけの構造では、特にホース内部に圧力が作用した際に、ホースが伸び、該シール部材内面に対してホースが互いに離れる方向にズレが生じて、ホース間の連結が外れてしまうといった問題がある。
また、凹凸状のホース外面を上記のごとくフラット状にするためにはコスト、手間がかかり、よりコストが安く、作業性の良好な継手構造が求められていた。
However, in the structure in which such a flat end outer peripheral surface is simply tightened with a connecting member via a seal member, the hose extends particularly when pressure is applied to the inside of the hose, and the hose extends against the inner surface of the seal member. There is a problem that the gaps occur in the directions away from each other and the connection between the hoses is disconnected.
In addition, in order to make the outer surface of the uneven hose flat as described above, cost and labor are required, and a joint structure with lower cost and good workability has been demanded.
そこで、本発明が前述の状況に鑑み、解決しようとするところは、外周面に凹部と凸部が螺旋状に形成された管体同士を、シート部材を介して締付ける継手構造において、管体に高い内圧が作用してもシール部材が容易にズレを生じなく、また、管体端部になんら加工を施すことなく容易に接続させることができる継手構造および継手装置を提供する点にある。 Therefore, in view of the above-described situation, the present invention intends to solve the problem in the joint structure in which the tubular bodies in which the concave portions and the convex portions are spirally formed on the outer peripheral surface are tightened via the sheet member. The present invention is to provide a joint structure and a joint device that can be easily connected without causing any slippage of the seal member even when a high internal pressure is applied, and without processing the end of the pipe body.
本発明は、前述の課題解決のために、外周面に凹部と凸部が螺旋状に形成された第1の管体と第2の管体を端部同士で互いに接続する継手構造であって、対面する第1の管体端部および第2の管体端部の両外周面に亘って被着されるシール部材を設け、該シール部材の内周面に、各管体端部外周面の凹部および凸部に係合する凸部および凹部を同じく螺旋状に形成し、該シール部材を各管体端部外周面に締結するための締付手段を設け、該締付手段の締結により、前記凸部および凹部が管体端部外周面の凹部および凸部に加圧係合されることを特徴とする管体の継手構造を構成した。 In order to solve the above-mentioned problems, the present invention provides a joint structure in which a first tubular body and a second tubular body, in which concave portions and convex portions are formed in a spiral shape on the outer peripheral surface, are connected to each other at end portions. A seal member that is attached over both outer peripheral surfaces of the first tube end and the second tube end facing each other, and an outer peripheral surface of each tube end on the inner peripheral surface of the seal member The convex portion and the concave portion that engage with the concave portion and the convex portion are similarly formed in a spiral shape, and a fastening means for fastening the seal member to the outer peripheral surface of each tubular body end portion is provided, and by fastening the fastening means, The tubular joint structure is characterized in that the convex portion and the concave portion are pressure-engaged with the concave portion and the convex portion on the outer peripheral surface of the tubular body end portion.
また、本発明は、外周面に凹部と凸部が螺旋状に形成された第1の管体と第2の管体を端部同士で互いに接続する継手装置であって、対面する第1の管体端部および第2の管体端部の両外周面に亘って被着され、該シール部材の内周面に、各管体端部外周面の凹部および凸部に係合する凸部および凹部を同じく螺旋状に形成してなるシール部材と、該シール部材を各管体端部外周面に締結するための締付手段と、を備え、前記締付手段の締結により、前記凸部および凹部が管体端部外周面の凹部および凸部に加圧係合されることを特徴とする継手装置をも提供する。 Moreover, this invention is a coupling apparatus which connects the 1st tube body and the 2nd tube body by which the recessed part and the convex part were helically formed in the outer peripheral surface at end parts, Comprising: Convex portions that are attached to both the outer peripheral surfaces of the tubular body end portion and the second tubular body end portion, and engage with the concave and convex portions of the outer peripheral surface of each tubular body end on the inner peripheral surface of the seal member And a sealing member having a concave portion formed in a spiral shape, and fastening means for fastening the sealing member to the outer peripheral surface of each tubular body end, and the convex portion by fastening the fastening means Also provided is a joint device characterized in that the concave portion is press-fitted into the concave portion and the convex portion on the outer peripheral surface of the tube body end portion.
ここで、前記締付手段を、前記シール部材の外周面に当接する金属板と、該金属板を縮径させる縮径手段とより構成することが好ましい。 Here, it is preferable that the tightening means includes a metal plate that contacts the outer peripheral surface of the seal member and a diameter reducing means for reducing the diameter of the metal plate.
また、前記金属板内周面とシール部材外周面に、長手方向に沿って凹凸係合する凹凸部をそれぞれ設けることが好ましい。 Moreover, it is preferable to provide the uneven | corrugated | grooved part which carries out uneven | corrugated engagement along a longitudinal direction in the said metal plate inner peripheral surface and a sealing member outer peripheral surface, respectively.
以上にしてなる本願発明に係る管体の継手構造および継手装置によれば、シール部材の内周面に、各管体端部外周面の凹部および凸部に係合する凸部および凹部を同じく螺旋状に形成したので、内圧により管体が互いに離れる方向にズレようとする力が作用しても、管体の凸部に点接合するのではなく、シール部材と各管体端部外周面とが凹凸係合により強固に摩擦係合して一体化するため、シール部材と管体とのズレも確実に防止できるとともに、管体端部をフラットに加工を施すことなく、作業性良く、容易に接続させることができ、コストも低減できる。 According to the pipe joint structure and the joint device according to the present invention as described above, the convex portion and the concave portion that are engaged with the concave portion and the convex portion of the outer peripheral surface of each tubular body are similarly provided on the inner peripheral surface of the seal member. Since it is formed in a spiral shape, even if a force that causes the pipes to move away from each other due to internal pressure is applied, the seal member and the outer peripheral surface of each pipe end are not spot-bonded to the convex part of the pipe. Since it is integrated by friction engagement firmly by uneven engagement, it is possible to reliably prevent displacement between the seal member and the tube body, and to improve workability without processing the tube end portion flat, It can be easily connected and the cost can be reduced.
また、締付手段を、シール部材の外周面に当接する金属板と、該金属板を縮径させる縮径手段とより構成したので、シール部材を各管体に対して均一に圧接でき、安定したシール性を保持できる。 In addition, the fastening means is composed of a metal plate that abuts the outer peripheral surface of the seal member and a diameter reducing means for reducing the diameter of the metal plate, so that the seal member can be uniformly pressed against each tubular body and is stable. The sealing performance can be maintained.
また、金属板内周面とシール部材外周面に、長手方向に沿って凹凸係合する凹凸部をそれぞれ設けたので、シール部材を金属板に係合した一体化状態を維持することができ、これにより、シール部材が管体のいずれかに引っ張られて管体とともに締付手段から外れてしまうといった不都合や、双方の管体に引っ張られて伸び、管体の接続が外れてしまうといった不都合を未然に防止できる。 Moreover, since the concave and convex portions that engage with the concave and convex portions along the longitudinal direction are provided on the inner peripheral surface of the metal plate and the outer peripheral surface of the seal member, respectively, the integrated state in which the seal member is engaged with the metal plate can be maintained. As a result, there is a disadvantage that the seal member is pulled by one of the pipes and is removed from the fastening means together with the pipe, and a problem that the pipes are pulled and extended by both pipes and the pipe is disconnected. It can be prevented beforehand.
次に、本発明の実施形態を添付図面に基づき詳細に説明する。 Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
図1、2は、本発明に係る継手構造を示す説明図であり、図1、2は第1実施形態、図3、4は第2実施形態を示し、図中符号Sは継手構造、1は継手装置、2はシール部材、3は締付手段をそれぞれ示している。 1 and 2 are explanatory views showing a joint structure according to the present invention. FIGS. 1 and 2 show a first embodiment, FIGS. 3 and 4 show a second embodiment, and in FIG. Indicates a joint device, 2 indicates a seal member, and 3 indicates a fastening means.
本発明の継手構造Sは、外周面に凹部83(93)と凸部82(92)が螺旋状に形成された第1の管体8と第2の管体9を端部同士で互いに接続する構造であって、対面する第1の管体端部80および第2の管体端部90の両外周面81,91に亘って被着されるシール部材2を設け、該シール部材2の内周面20に、各管体端部外周面の凹部83(93)および凸部82(92)に係合する凸部41および凹部42を同じく螺旋状に形成し、該シール部材2を各管体端部外周面に締結するための締付手段3を設け、該締付手段3の締結により、前記凸部41および凹部42が管体端部外周面の凹部83(93)および凸部82(92)に加圧係合されることを特徴とする。
In the joint structure S of the present invention, the first
すなわち本発明に係る継手装置1は、対面する第1の管体端部80および第2の管体端部90の両外周面81,91に亘って被着され、該シール部材2の内周面20に、各管体端部外周面の凹部83(93)および凸部82(92)に係合する凸部41および凹部42を同じく螺旋状に形成してなるシール部材2と、該シール部材2を各管体端部外周面81,91に締結するための締付手段3と、を備えたものである。
That is, the joint device 1 according to the present invention is attached to both the outer
管体8,9は、本例では軟質樹脂製の本体部に硬質樹脂製の芯材を螺旋状に埋設した樹脂製複合ホースとした例を挙げているが、本発明はこのような複合ホースに何ら限定されず、外周面に凹部と凸部を螺旋状に形成したものであれば、複合ホース以外の樹脂製ホースや金属製の管の接続にも採用できる。
In this example, the
シール部材2は、ホース端部間の接続部から流体が漏れないように気密状に封止するものであり、ゴム材や弾性を有する発泡体、軟質の合成樹脂等から構成することができる。本例では、凹部83(93)および凸部82(92)に係合するように同ピッチで凸部41および凹部42を螺旋状に形成し、これによりシール機能は勿論のこと、内圧が作用した場合にも管体8,9が抜けないような抜け止めの機能を奏している。
The
凸部41および凹部42は、本例では凸部41の高さを管体の凹部83(93)の深さよりも高くして装着時に密着するように設定し、凹部42の深さは作業性を維持するために管体の凸部82(92)の高さと同程度の深さに設定されているが、このようなもの以外に、管体の凹部、凸部よりも小さく形成して、少なくとも係止できる形状としたり、逆に大きく形成して、密着性をより向上させるものも好ましい実施例であり、その断面形状の本例のように波形以外に四角形状その他の形状が連続する凹凸形状に形成してもよい。
In this example, the
シール部材2は、製造時に筒状に成形したものや、半割り状に成形して組み付けるものでもよいし、また、内面側に前記凸部41および凹部42を構成する凹凸溝を有する一枚のシート状に成形したものを、使用の際に筒状に変形させて各管体端部に装着するもの、或いは筒状に変形させて接着し、筒状体に構成したものでも良い。
The sealing
あらかじめ筒状に構成したものを管体端部間に装着する場合には、一方の管体端部外周面に回転させながら被着した後、戻しながら他方の管体端部外周面に被着することで、管端部同士が対面した状態に容易に装着できる。 When mounting a tubular structure between the tube ends, attach it to the outer peripheral surface of one tube end while rotating it, and then attach it to the outer peripheral surface of the other tube end while returning. By doing so, it can be easily mounted in a state where the tube ends face each other.
締付手段3は、シール部材2の外周面21に当接する金属板6と、該金属板6を縮径させる縮径手段7とより構成されており、このような金属板6を介することにより、シール部材2を各管体に対して均一に圧接でき、安定した気密状態を保持できるように構成されている。
The tightening means 3 is composed of a
金属板6は、ステンレス等の薄板が用いられ、各管体の端部外周面に対応する位置に、片側2本づつ金属板6を縮径させる縮径手段7としてネジを締め付けて締結する金属製の平バンドが装着されている。
バンドの個数は、片側2本づつに何ら限定されず、1本づつ、或いは3本以上づつ装着することもできる。
The
The number of bands is not limited to two on each side, and can be attached one by one, or three or more.
なお、金属板6の代わりに屈曲可能な合成樹脂性の薄板としてもよいし、金属製の平バンド以外に、ワイヤバンドや合成樹脂製の結束バンド等を用いることも可能である。
In addition, it is good also as a synthetic resin thin plate which can be bent instead of the
また、本例では一枚ものの金属板6を巻きつけているが、筒状に成形したものや、半割り状に形成した一対の部材をネジで筒状に組み付けて締結するものなど、適宜な締付手段3を採用することが可能である。
Further, in this example, a
図3,4は、本発明の第2実施形態を示し、金属板内周面60とシール部材外周面21に、長手方向に沿って凹凸係合する凹凸部61,22がそれぞれ設けられている。
3 and 4 show a second embodiment of the present invention, in which concave and
これにより、接続された管体間に圧力が作用しても、シール部材2が金属板6に係合して一体化された状態が維持され、管体8,9のいずれかに引っ張られて外れたり、或いは双方の管体に引っ張られて伸び、管体の接続が外れてしまうといった不都合を未然に防止でき、より確実な接続状態が実現できる構造となる。
As a result, even when pressure is applied between the connected pipe bodies, the
凹凸部61,22は、本例では片側に2個づつ設け、2個の間に金属製の平バンドを配置させたが、凹凸部の数はこれに何ら限定されず、また、本例ではリング状に形成したが、螺旋状に形成しても良い。
In this example, two
以上本発明の実施形態について説明したが、本発明はこうした実施例に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲において種々なる形態で実施し得ることは勿論である。 Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and can of course be implemented in various forms without departing from the gist of the present invention.
1 継手装置
2 シール部材
3 締付手段
6 金属板
7 縮径手段
8,9 管体
20 内周面
21 外周面
22 凹凸部
41 凸部
42 凹部
60 内周面
61 凹凸部
80 管体端部
81 外周面
82 凸部
83 凹部
90 管体端部
91 外周面
S 継手構造
DESCRIPTION OF SYMBOLS 1
Claims (6)
対面する第1の管体端部および第2の管体端部の両外周面に亘って被着されるシール部材を設け、
該シール部材の内周面に、各管体端部外周面の凹部および凸部に係合する凸部および凹部を同じく螺旋状に形成し、
該シール部材を各管体端部外周面に締結するための締付手段を設け、
該締付手段の締結により、前記凸部および凹部が管体端部外周面の凹部および凸部に加圧係合されることを特徴とする管体の継手構造。 It is a joint structure for connecting the first tube body and the second tube body, in which the concave portion and the convex portion are formed in a spiral shape on the outer peripheral surface, at the end portions,
A seal member is provided to be applied over both outer peripheral surfaces of the first tube end and the second tube end facing each other;
On the inner peripheral surface of the seal member, a convex portion and a concave portion that engage with the concave portion and the convex portion on the outer peripheral surface of each tubular body end are similarly formed in a spiral shape,
A fastening means for fastening the seal member to the outer peripheral surface of each tubular body end is provided,
A tubular joint structure in which the convex portion and the concave portion are press-fitted into the concave portion and the convex portion on the outer peripheral surface of the tubular body by fastening of the fastening means.
対面する第1の管体端部および第2の管体端部の両外周面に亘って被着され、該シール部材の内周面に、各管体端部外周面の凹部および凸部に係合する凸部および凹部を同じく螺旋状に形成してなるシール部材と、
該シール部材を各管体端部外周面に締結するための締付手段と、
を備え、前記締付手段の締結により、前記凸部および凹部が管体端部外周面の凹部および凸部に加圧係合されることを特徴とする継手装置。 A joint device for connecting the first tubular body and the second tubular body, each having a concave portion and a convex portion formed in a spiral shape on the outer peripheral surface, to each other at the ends,
It is applied to both the outer peripheral surfaces of the first tube end and the second tube end facing each other, and is formed on the inner peripheral surface of the seal member on the concave and convex portions on the outer peripheral surface of each tube end. A sealing member in which a convex part and a concave part to be engaged are also formed in a spiral shape;
Tightening means for fastening the seal member to the outer peripheral surface of each tube end;
And the convex portion and the concave portion are pressure-engaged with the concave portion and the convex portion on the outer peripheral surface of the tube body by fastening of the tightening means.
The joint device according to claim 5, wherein the metal plate inner peripheral surface and the seal member outer peripheral surface are provided with concave and convex portions that engage with the concave and convex portions along the longitudinal direction.
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JP2005342710A JP4718310B2 (en) | 2005-11-28 | 2005-11-28 | Pipe joint structure and joint device |
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JP2005342710A JP4718310B2 (en) | 2005-11-28 | 2005-11-28 | Pipe joint structure and joint device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009077605A (en) * | 2007-09-25 | 2009-04-09 | Sanritsu:Kk | Watertight joint |
Citations (5)
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JPS4937820A (en) * | 1972-08-14 | 1974-04-08 | ||
JPS61233289A (en) * | 1985-04-05 | 1986-10-17 | 鳥居化成有限会社 | Pipe joint for corrugated pipe |
JPS63138827A (en) * | 1986-11-29 | 1988-06-10 | Canon Inc | Data transmission equipment |
JPH07317979A (en) * | 1994-05-30 | 1995-12-08 | Inoac Corp | Pipe connection structure |
JP2001254883A (en) * | 2000-03-10 | 2001-09-21 | Torii Kasei Kk | Joint for corrugate pipe |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4937820U (en) * | 1972-07-06 | 1974-04-03 | ||
JPH0516838Y2 (en) * | 1987-03-04 | 1993-05-06 |
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2005
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4937820A (en) * | 1972-08-14 | 1974-04-08 | ||
JPS61233289A (en) * | 1985-04-05 | 1986-10-17 | 鳥居化成有限会社 | Pipe joint for corrugated pipe |
JPS63138827A (en) * | 1986-11-29 | 1988-06-10 | Canon Inc | Data transmission equipment |
JPH07317979A (en) * | 1994-05-30 | 1995-12-08 | Inoac Corp | Pipe connection structure |
JP2001254883A (en) * | 2000-03-10 | 2001-09-21 | Torii Kasei Kk | Joint for corrugate pipe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009077605A (en) * | 2007-09-25 | 2009-04-09 | Sanritsu:Kk | Watertight joint |
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JP4718310B2 (en) | 2011-07-06 |
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