JP4779083B2 - Tube connection structure - Google Patents
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- JP4779083B2 JP4779083B2 JP2007226939A JP2007226939A JP4779083B2 JP 4779083 B2 JP4779083 B2 JP 4779083B2 JP 2007226939 A JP2007226939 A JP 2007226939A JP 2007226939 A JP2007226939 A JP 2007226939A JP 4779083 B2 JP4779083 B2 JP 4779083B2
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Description
本発明は管体同士の接続構造に関するものである。 The present invention relates to a connection structure between tubular bodies.
以下に、従来よく知られた接続部と管部材との接続構造を説明する。
図１１に示した、排水トラップや排水配管を利用する洗面台など排水機器の、配管の接続部分に採用される管部材の接続構造を、図１２等を参酌しつつ、以下に説明する。
図１２に示された管部材の接続構造は、下記に記載した、排水トラップ等に設けられた接続部と、接続部の内周面に挿通する管部材と、環状パッキン、袋ナット部材とから構成される。
接続部は、排水トラップの末端に設けられる、外周面に雄ねじが設けられた円筒状の部材（部分）である。
管部材は、前記接続部の内側に挿通される円筒形状の部材であって、一般にはパイプなどとして、例えば排水トラップと床下配管の間の配管を行うための部材として使用される。
袋ナット部材は、断面略Ｌ字を成す略円筒形状にして内部に該接続部の雄ねじと螺合する雌ねじを設けてなり、略円筒の一端に管部材を挿通するための円状開口部を備えて成る。
環状パッキンは弾性を有する素材からなり、前記管部材の外周面に周縁に沿って配置される、断面略三角形状を成す部材であって、使用時に前記接続部に当接する傾斜面を備えてなる。
Hereinafter, a well-known connection structure between the connecting portion and the pipe member will be described.
A pipe member connection structure employed in a pipe connection portion of drainage equipment such as a drain trap and a wash basin using drain pipe shown in FIG. 11 will be described below with reference to FIG.
The pipe member connection structure shown in FIG. 12 includes a connection part provided in a drain trap, etc. described below, a pipe member inserted into the inner peripheral surface of the connection part, an annular packing, and a cap nut member. Composed.
The connecting portion is a cylindrical member (part) provided at the end of the drain trap and having an external thread on the outer peripheral surface.
The pipe member is a cylindrical member that is inserted inside the connecting portion, and is generally used as a pipe or the like, for example, a member for performing piping between a drain trap and underfloor piping.
The cap nut member is formed in a substantially cylindrical shape having a substantially L-shaped cross section, and is provided with a female screw to be screwed into the male screw of the connection portion inside, and a circular opening for inserting the tube member is inserted into one end of the substantially cylindrical shape. Be prepared.
The annular packing is made of a material having elasticity, and is arranged along the periphery on the outer peripheral surface of the tube member. The annular packing has a substantially triangular cross section, and has an inclined surface that comes into contact with the connecting portion when in use. .
上記した各部材は、以下のように取り付けされる。
まず袋ナット部材を管部材に挿通し、更に環状パッキンを、環状パッキンの傾斜面が、取り付け時に接続部に当接する向きに合わせて管部材の一端から挿入する。
更に、接続部の内周側に管部材を挿通して、環状パッキンの傾斜面が接続部の開口の周縁に当接するようにする。
この状態から接続部の雄ねじに、袋ナット部材の雌ねじを螺合させると、ねじの螺合による押圧の力の一部が、接続部の開口の周縁に当接する環状パッキンの傾斜面の傾斜によって、環状パッキンの内周面の方向に向かう力に変換されて弾性圧縮により縮径し、管部材外周面を強く当接することとなる。結果として、接続部の開口周縁と管部材の外周面がそれぞれ強く押圧されて水密的に固定され、接続部と管部材との接続が完了する。
Each member mentioned above is attached as follows.
First, the cap nut member is inserted into the tube member, and the annular packing is further inserted from one end of the tube member so that the inclined surface of the annular packing is in contact with the connecting portion at the time of attachment.
Further, the pipe member is inserted into the inner peripheral side of the connecting portion so that the inclined surface of the annular packing is in contact with the peripheral edge of the opening of the connecting portion.
When the female screw of the cap nut member is screwed into the male screw of the connection portion from this state, a part of the pressing force due to the screwing of the screw is caused by the inclination of the inclined surface of the annular packing contacting the peripheral edge of the opening of the connection portion. Then, it is converted into a force toward the inner peripheral surface of the annular packing, and is reduced in diameter by elastic compression, so that the outer peripheral surface of the pipe member comes into strong contact. As a result, the periphery of the opening of the connecting portion and the outer peripheral surface of the pipe member are strongly pressed and fixed in a watertight manner, and the connection between the connecting portion and the pipe member is completed.
上記のような接続構造では以下のような問題があった。
雄ねじと雌ねじの螺合の力が弱かったり、管部材と接続部を備えた部材の間に、常時離間方向に強い応力が作用していると、管部材に装着される環状パッキンが管部材上を離間方向に滑り、接続部から管部材が抜け落ちてしまう場合がある。この抜け落ちを防止するため、図１３に示したように、管部材の外周面に、円周に沿って環状溝を設け、この環状溝に環状パッキンを嵌合させる方法が提案されている。このようにすれば、環状溝の段差に環状パッキンが引っかかり、上記した管部材に装着される環状パッキンが管部材上を離間方向に滑り、接続部から管部材が抜け落ちてしまう、という問題を解決することができる。
但し、使用時には各部材の微妙な位置ずれに対応するため、接続部に対する管部材の挿通深さ（差込深さ）を調整する必要がある。このため、この環状溝を管部材に設けて環状パッキンに嵌合させる方法を採用する為には、管部材に設けた環状溝の軸方向の幅を、環状パッキンの軸方向の幅以上の幅として、挿通深さ（差込深さ）を調整可能にする必要があった。
The above connection structure has the following problems.
If the screwing force between the male screw and the female screw is weak, or if a strong stress is always applied between the tube member and the member provided with the connecting portion, the annular packing attached to the tube member May slide in the separating direction, and the pipe member may fall off from the connecting portion. In order to prevent this drop-off, as shown in FIG. 13, a method has been proposed in which an annular groove is provided along the circumference on the outer peripheral surface of the pipe member, and an annular packing is fitted in the annular groove. This solves the problem that the annular packing is caught in the step of the annular groove, the annular packing attached to the above-described tube member slides in the separation direction on the tube member, and the tube member falls off from the connecting portion. can do.
However, it is necessary to adjust the insertion depth (insertion depth) of the pipe member with respect to the connecting portion in order to cope with subtle positional shifts of the respective members during use. For this reason, in order to employ a method in which this annular groove is provided in the pipe member and fitted into the annular packing, the axial width of the annular groove provided in the pipe member is equal to or larger than the axial width of the annular packing. As a result, it was necessary to make the insertion depth (insertion depth) adjustable.
位置あわせの結果、図１３に示したように、袋ナット部材の円状開口部と管部材との隙間部分に、環状溝部が配置される場合がある。この場合、図１２に示した従来の接続構造と比べて、袋ナット部材と管部材の間に環状溝部の溝の深さ分の隙間が生じることとなる。
このように隙間が大きく開くと、図１４に示したように、接続部に対して管部材が傾斜したような状態に接続され、水漏れなどの原因になる場合がある。
また、例えば管部材に大量の排水が流れた際等に、水流により管部材に圧力が加わると、前記の隙間があることにより、管部材ががたつく場合がある。更にがたつきの振り幅が大きい場合は、管部材が袋ナット部材に当たり、音をたてることもあった。また、がたつきの弾みで管部材や環状パッキン、接続部との間に隙間ができた場合は、水漏れの危険性もあった。
本発明は問題点に鑑み発明されたもので、管体の接続構造において、袋ナット部材の円状開口部と管部材との隙間部分に環状溝が配置された場合でも、袋ナット部材と管部材の間の隙間が実質上従来の接続構造程度に抑えることを可能とした管体の接続構造を提供するものである。
As a result of the alignment, as shown in FIG. 13, an annular groove may be disposed in the gap between the circular opening of the cap nut member and the tube member. In this case, compared with the conventional connection structure shown in FIG. 12, a gap corresponding to the depth of the groove of the annular groove portion is generated between the cap nut member and the pipe member.
If the gap is thus wide, as shown in FIG. 14, the pipe member is connected to the connection portion in an inclined state, which may cause water leakage or the like.
Further, for example, when a large amount of drainage flows through the pipe member, if the pressure is applied to the pipe member by the water flow, the pipe member may be rattled due to the gap. Further, when the wobbling swing is large, the pipe member may hit the cap nut member and make a sound. In addition, when there is a gap between the pipe member, the annular packing, and the connecting portion due to the backlash, there is a risk of water leakage.
The present invention has been invented in view of the problems, and in the tube connection structure, even when an annular groove is arranged in the gap between the circular opening of the cap nut member and the tube member, the cap nut member and the tube It is an object of the present invention to provide a tube connection structure that allows the gap between members to be substantially reduced to the level of a conventional connection structure.
請求項1に記載の発明は、外周面に係合部（２）が設けられた円筒状の接続部（１）と、前記接続部（１）の内側に挿通される円筒状の管部材（３）と、断面略Ｌ字を成す略円筒形状にして、内部に該接続部（１）の係合部（２）と係合する被係合部（５）を設けてなり、略円筒の一端に管部材（３）を挿通するための円状開口部（６）を備えた袋ナット部材（４）と、前記管部材（３）の外周面に周縁に沿って配置されると共に、前記接続部（１）に当接する傾斜面（８）を備え、接続部（１）と袋ナット部材（４）とで挟持されることで、水密的に管部材（３）を接続部（１）に固定する環状パッキン（７）と、から構成される管体の接続構造において、
管部材（３）に円周に沿って環状溝（９）を設けてなり、且つ該環状溝（９）の軸方向の幅を、環状パッキン（７）の軸方向の幅以上の幅とすると共に、使用時袋ナット部材（４）の円形開口内に突出して、袋ナット部材（４）の円状開口部（６）周縁と、管部材（３）の環状溝（９）との間に配置される環状の環状詰部（１０）を備えたことを特徴とする、管体の接続構造である。
The invention described in
An annular groove (9) is provided along the circumference of the pipe member (3), and the axial width of the annular groove (9) is greater than or equal to the axial width of the annular packing (7). At the same time, it protrudes into the circular opening of the cap nut member (4) during use, and between the peripheral edge of the circular opening (6) of the cap nut member (4) and the annular groove (9) of the tube member (3). It is the connection structure of a pipe body provided with the cyclic | annular filling part (10) arrange | positioned.
請求項２に記載の発明は、上記係合部（２）を、円筒状に形成された接続部（１）の外周面に設けられた雄ねじとすると共に、
上記被係合部（５）を、該係合部（２）の雄ねじに螺合する雌ねじによって構成したことを特徴とする、上記段落０００７に記載の管体の接続構造である。
The invention according to
The pipe connection structure according to paragraph 0007, wherein the engaged portion (5) is configured by a female screw that is screwed into a male screw of the engaging portion (2).
請求項３に記載の発明は、上記環状詰部（１０）が環状パッキン（７）と一体に成型されていることを特徴とする、上記段落０００７又は段落０００８に記載の管体の接続構造である。
The invention according to
請求項４に記載の発明は、上記環状詰部（１０）が環状パッキン（７）と別部材として構成されていることを特徴とする、上記段落０００７又は段落０００８に記載の管体の接続構造である。
The invention according to
請求項５に記載の発明は、上記環状詰部（１０）の環状を分断する切り欠き部（１２）を備えたことを特徴とする、段落００１０に記載の管体の接続構造である。
Invention of
本発明の管体の接続構造は以下の（１）．〜（５）．の効果を奏する。
（１）．請求項１に記載の本発明では、管部材に環状溝を設けたため、接続部と管部材との間に、離間方向に応力などが作用していても、接続部から管部材が抜ける等することがない。この抜け防止の状態において、環状パッキンに環状詰部を備えたことによって、管部材の接続時袋ナット部材と管部材の間の隙間も実質上従来の接続構造と同程度の隙間で済むこととなり、接続部に対して管部材が傾斜したような状態に接続されることが無くなる。また、また、例えば管部材に大量の排水が流れた際等に、水流により管部材に圧力が加わっても、管部材ががたつく場合が無くなり、水漏れなどが生じることが無くなる。
（２）．請求項２に記載した本発明では、係合部を雄ねじ、被係合部を雌ねじとしたことで、発明の構造を明確化できる。
（３）．請求項３に記載した本発明では、環状詰部を環状パッキンと一体に成形したため、製造や施工等の手間を別々に設けた場合と比べ省略することができる。
（４）．請求項４に記載した本発明では、環状詰部を環状パッキンと別体に構成したため、必要に応じて環状パッキンとは別の素材、例えば滑りを良くするための表面が滑らかな樹脂素材としたり、従来の環状パッキンに追加することで従来品にも本発明と同様の効果を追加することができる。
（５）．請求項５に記載した本発明では、上記環状詰部の環状部分に切り欠き部を備えたため、管部材に環状詰部を嵌合させる際、切り欠き部を利用して簡単に環状詰部を嵌合させることができる。
The connection structure of the tubular body of the present invention is the following (1). To (5). The effect of.
(1). In the first aspect of the present invention, since the tubular member is provided with the annular groove, even if stress or the like acts in the separating direction between the connecting portion and the tubular member, the tubular member is removed from the connecting portion. There is nothing. In this state of preventing slipping, the annular packing is provided with an annular clogging portion, so that the gap between the cap nut member and the pipe member when connecting the pipe member can be substantially the same as the conventional connection structure. The pipe member is not connected to the connection portion in an inclined state. In addition, for example, when a large amount of drainage flows through the pipe member, even if pressure is applied to the pipe member by the water flow, the pipe member does not rattle and water leakage does not occur.
(2). In the present invention described in
(3). According to the third aspect of the present invention, since the annular filling portion is formed integrally with the annular packing, it can be omitted as compared with the case where troubles such as manufacturing and construction are provided separately.
(4). In the present invention described in
(5). In the present invention described in
以下に、本発明の管部材の接続構造を図面を参照しながら説明する。
図１及び図２に示した本発明の実施例は、図１１に示した、排水トラップなど接続部（１）を備えた部材と、管部材（３）との接続構造は、下記に記載した、排水トラップ等に設けられた接続部（１）と、接続部（１）の内周面に挿通する管部材（３）と、環状パッキン（７）、袋ナット部材（４）とから構成される。
接続部（１）は、排水トラップの末端に設けられる、外周面に係合部（２）となる雄ねじが設けられた円筒状の部材（部分）である。
管部材（３）は、前記接続部（１）の内側に挿通される円筒形状の部材であって、一般にはパイプなどとして、例えば排水トラップと床下配管の間の配管を行うための部材として使用される。またこの管部材（３）には、円周に沿って環状溝（９）を設けてなり、この環状溝（９）に後述する環状パッキン（７）を嵌合させるように構成されてなる。またこの環状溝（９）の軸方向の幅は、後述する環状パッキン（７）（環状詰部（１０）含む）の軸方向の幅のほぼ倍程度の長さ幅になるよう構成されてなる。
袋ナット部材（４）は、断面略Ｌ字を成す略円筒形状にして内部に該接続部（１）の係合部（２）の雄ねじと螺合する被係合部（５）となる雌ねじを設けてなり、略円筒の一端に管部材（３）を挿通するための円状開口部（６）を備えて成る。
環状パッキン（７）はゴムなど弾性を有する素材からなり、前記管部材（３）の外周面に周縁に沿って配置される、断面略三角形状を成す部材であって、使用時に前記接続部（１）に当接する傾斜面（８）を備えてなる。
また、この環状パッキン（７）には、袋ナット部材（４）と当接する面に円環状に突出した環状詰部（１０）を一体的に備えて成る。この環状詰部（１０）は接続時袋ナット部材（４）の円状開口部（６）内に突出して、袋ナット部材（４）の円状開口部（６）周縁と、管部材（３）の環状溝（９）との間に配置されるように構成されてなる。この環状詰部（１０）の半径方向の幅（厚み）は、環状溝（９）の深さとほぼ同程度である。
Below, the connection structure of the pipe member of this invention is demonstrated, referring drawings.
In the embodiment of the present invention shown in FIG. 1 and FIG. 2, the connection structure between the member having the connection part (1) such as a drain trap and the pipe member (3) shown in FIG. The connecting part (1) provided in the drain trap, etc., the pipe member (3) inserted through the inner peripheral surface of the connecting part (1), the annular packing (7), and the cap nut member (4) The
The connection part (1) is a cylindrical member (part) provided at the end of the drainage trap and provided with a male screw serving as the engagement part (2) on the outer peripheral surface.
The pipe member (3) is a cylindrical member inserted inside the connecting portion (1), and is generally used as a pipe or the like, for example, a member for performing piping between a drain trap and underfloor piping. Is done. The pipe member (3) is provided with an annular groove (9) along the circumference, and is configured to fit an annular packing (7) described later in the annular groove (9). Further, the axial width of the annular groove (9) is configured to be about twice as long as the axial width of the annular packing (7) (including the annular filling portion (10)) to be described later. .
The cap nut member (4) has a substantially cylindrical shape having a substantially L-shaped cross section, and is internally threaded as an engaged portion (5) that is screwed into the external thread of the engaging portion (2) of the connecting portion (1). And is provided with a circular opening (6) for inserting the pipe member (3) at one end of a substantially cylindrical shape.
The annular packing (7) is made of a material having elasticity, such as rubber, and is arranged along the periphery on the outer peripheral surface of the pipe member (3). It comprises an inclined surface (8) that contacts 1).
Further, the annular packing (7) is integrally provided with an annular filling portion (10) projecting in an annular shape on the surface in contact with the cap nut member (4). This annular clogging portion (10) protrudes into the circular opening (6) of the cap nut member (4) when connected, and the periphery of the circular opening (6) of the cap nut member (4) and the pipe member (3 ) And the annular groove (9). The radial width (thickness) of the annular filling portion (10) is approximately the same as the depth of the annular groove (9).
上記した各部材は、以下のように取り付けされる。
まず袋ナット部材（４）を管部材（３）に挿通し、更に環状パッキン（７）を、環状パッキン（７）の傾斜面（８）が、取り付け時に接続部（１）に当接する向きに合わせて管部材（３）の一端から挿入し、環状溝（９）上に配置させる。
更に、接続部（１）の内周側に管部材（３）を挿通して、環状パッキン（７）の傾斜面（８）が接続部（１）の開口の周縁に当接するようにする。このとき、環状溝（９）の軸方向の幅は、環状パッキン（７）の軸方向の幅よりも１５ミリメートル前後幅広に構成されてなるため、図３乃至図４に示したように、環状溝（９）上の環状パッキン（７）の位置をずらすことができる。よって、接続時に接続部（１）に対する管部材（３）の挿通深さ（差込深さ）をある程度自由に調整可能にすることができる。
この状態から接続部（１）の係合部（２）の雄ねじに、袋ナット部材（４）の被係合部（５）の雌ねじを螺合させると、ねじの螺合による押圧の力の一部が、接続部（１）の開口の周縁に当接する環状パッキン（７）の傾斜面（８）の傾斜によって、環状パッキン（７）の内周面の方向に向かう力に変換されて弾性圧縮により縮径し、管部材（３）外周面を強く当接することとなる。結果として、接続部（１）の開口周縁と管部材（３）の外周面がそれぞれ強く押圧されて水密的に固定され、接続部（１）と管部材（３）との接続が完了する。
Each member mentioned above is attached as follows.
First, the cap nut member (4) is inserted into the pipe member (3), and the annular packing (7) is further oriented so that the inclined surface (8) of the annular packing (7) contacts the connecting portion (1) when attached. Together, it is inserted from one end of the pipe member (3) and placed on the annular groove (9).
Further, the pipe member (3) is inserted into the inner peripheral side of the connection portion (1) so that the inclined surface (8) of the annular packing (7) contacts the peripheral edge of the opening of the connection portion (1). At this time, the axial width of the annular groove (9) is about 15 millimeters wider than the axial width of the annular packing (7), so as shown in FIGS. The position of the annular packing (7) on the groove (9) can be shifted. Therefore, the insertion depth (insertion depth) of the pipe member (3) with respect to the connection portion (1) can be freely adjusted to some extent at the time of connection.
From this state, when the female screw of the engaged portion (5) of the cap nut member (4) is screwed into the male screw of the engaging portion (2) of the connecting portion (1), the force of pressing by screwing of the screw is reduced. A part is converted into a force toward the inner peripheral surface of the annular packing (7) by the inclination of the inclined surface (8) of the annular packing (7) contacting the peripheral edge of the opening of the connecting portion (1), and elastically The diameter is reduced by the compression, and the outer peripheral surface of the pipe member (3) is brought into strong contact. As a result, the peripheral edge of the opening of the connection part (1) and the outer peripheral surface of the pipe member (3) are strongly pressed and fixed in a watertight manner, and the connection between the connection part (1) and the pipe member (3) is completed.
更にこの接続が完了した際、環状詰部（１０）が袋ナット部材（４）の円状開口部（６）内に突出して、袋ナット部材（４）の円状開口部（６）周縁と、管部材（３）の環状溝（９）との間に配置される。環状詰部（１０）の半径方向（管部材（３）の半径方向）の厚みと、環状溝（９）の深さとは、同じ寸法に構成しているため、袋ナット部材（４）の円形開口部と管部材（３）の環状溝（９）との間の隙間は、図１に示したように環状詰部（１０）分埋まることとなり、実質上、従来の管部材（３）の接続構造と同じ程度の隙間と済むこととなる。
よって、図１２に示したような、接続部（１）に対して管部材（３）が傾斜したような状態に接続されることがない。また、また、例えば管部材（３）に大量の排水が流れた際等に、水流により管部材（３）に圧力が加わっても、管部材（３）ががたつく場合が無くなり、水漏れなどが生じることが無くなる。
Further, when this connection is completed, the annular clogging portion (10) protrudes into the circular opening (6) of the cap nut member (4), and the peripheral edge of the circular opening (6) of the cap nut member (4) , Between the annular groove (9) of the pipe member (3). Since the thickness of the annular clogging portion (10) in the radial direction (radial direction of the pipe member (3)) and the depth of the annular groove (9) are configured to be the same, the cap nut member (4) is circular. The gap between the opening and the annular groove (9) of the pipe member (3) is buried by the annular clogging part (10) as shown in FIG. The gap is almost the same as the connection structure.
Therefore, the pipe member (3) is not connected to the connection portion (1) as shown in FIG. In addition, for example, when a large amount of drainage flows through the pipe member (3), even if pressure is applied to the pipe member (3) by the water flow, the pipe member (3) may not be rattled and water leakage may occur. It never happens.
本発明の実施例は上記のようであるが、本発明の実施例は上記に限定されるものではなく、発明の主旨を逸脱しない範囲で自由に変更が可能である。
例えば上記実施例では、環状詰部（１０）を環状パッキン（７）と一体に構成して成るが、本発明は上記実施例に限定されるものではなく、図５及び図６に示したように、環状パッキン（７）と、袋ナット部材（４）の円形開口の周縁との間に挟持される鍔部（１１）を設けた上で環状パッキン（７）とは別の部材として構成しても良い。このようにすれば、例えば袋ナット部材（４）の螺合時に螺合をスムーズに進めるため、滑りの良い表面が滑らかな樹脂素材としたり、従来の環状パッキン（７）に追加することで従来品にも本発明と同様の効果を追加することができる。
The embodiment of the present invention is as described above, but the embodiment of the present invention is not limited to the above, and can be freely changed without departing from the gist of the invention.
For example, in the above embodiment, the annular filling portion (10) is formed integrally with the annular packing (7). However, the present invention is not limited to the above embodiment, as shown in FIGS. And provided with a flange (11) sandwiched between the annular packing (7) and the peripheral edge of the circular opening of the cap nut member (4) and configured as a member separate from the annular packing (7). May be. In this way, for example, in order to smoothly advance the screwing when the cap nut member (4) is screwed, a resin material having a smooth surface is made smooth or added to the conventional annular packing (7). The effect similar to this invention can be added also to goods.
また、段落００１５に記載したように環状パッキン（７）と環状詰部（１０）とを別部材とした場合、図７に示したように環状詰部（１０）の環状を分断する切り欠き部（１２）を備えると、図８に示したように切り欠き部（１２）を大きく拡げることで、側面方向から管部材（３）に環状詰部（１０）を極めて簡単に嵌合させることができる。また、環状詰部（１０）を管部材（３）に軸方向から挿通する場合でも、環状詰部（１０）の径を拡径することができるため、挿通作業が極めて容易になる。 Further, as described in paragraph 0015, when the annular packing (7) and the annular filling portion (10) are separate members, a notch portion for dividing the annular shape of the annular filling portion (10) as shown in FIG. When (12) is provided, as shown in FIG. 8, the notch (12) is greatly expanded, so that the annular plug (10) can be fitted into the pipe member (3) from the side direction very easily. it can. Further, even when the annular filling portion (10) is inserted through the pipe member (3) from the axial direction, the diameter of the annular filling portion (10) can be increased, so that the insertion operation becomes extremely easy.
また、上記実施例では係合部（２）を雄ねじ、被係合部（５）を雌ねじ、としているが、本発明は、上記実施例に限定されるものではなく、例えば図９、図１０に示したように、接続部（１）の係合部（２）、袋ナット部材（４）の被係合部（５）をそれぞれ溝形状とし、この溝形状にＣ字リング状の楔部材（２’）を軸の側面方向にこの溝形状に嵌合させることで、管体の接続を行うようにしても良い。このように、袋ナット部材を利用する構造であれば、どのような係合の構造であっても、本発明を採用する事ができる。 Moreover, in the said Example, although the engaging part (2) is made into the external thread and the to-be-engaged part (5) is made into the internal thread, this invention is not limited to the said Example, For example, FIG. 9, FIG. As shown in Fig. 4, the engaging portion (2) of the connecting portion (1) and the engaged portion (5) of the cap nut member (4) are each formed into a groove shape, and a C-shaped wedge member is formed in this groove shape. The pipes may be connected by fitting (2 ′) into the groove shape in the side surface direction of the shaft. As described above, the present invention can be employed in any engagement structure as long as the structure uses a cap nut member.
１ 接続部 ２ 係合部
２’ 楔部材 ３ 管部材
４ 袋ナット部材 ５ 被係合部
６ 円状開口部 ７ 環状パッキン
８ 傾斜 ９ 環状溝
１０ 環状詰部 １１ 鍔部
１２ 切り欠き部
DESCRIPTION OF
Claims (5)
前記接続部（１）の内側に挿通される円筒状の管部材（３）と、
断面略Ｌ字を成す略円筒形状にして、内部に該接続部（１）の係合部（２）と係合する被係合部（５）を設けてなり、略円筒の一端に管部材（３）を挿通するための円状開口部（６）を備えた袋ナット部材（４）と、
前記管部材（３）の外周面に周縁に沿って配置されると共に、前記接続部（１）に当接する傾斜面（８）を備え、接続部（１）と袋ナット部材（４）とで挟持されることで、水密的に管部材（３）を接続部（１）に固定する環状パッキン（７）と、
から構成される管体の接続構造において、
管部材（３）に円周に沿って環状溝（９）を設けてなり、且つ該環状溝（９）の軸方向の幅を、環状パッキン（７）の軸方向の幅以上の幅とすると共に、
接続時袋ナット部材（４）の円状開口部（６）内に突出して、袋ナット部材（４）の円状開口部（６）周縁と、管部材（３）の環状溝（９）との間に配置される環状の環状詰部（１０）を備えたことを特徴とする、管体の接続構造。 A cylindrical connecting portion (1) provided with an engaging portion (2) on the outer peripheral surface;
A cylindrical tube member (3) inserted inside the connecting portion (1);
A substantially cylindrical shape having a substantially L-shaped cross section is provided, and an engaged portion (5) that engages with the engaging portion (2) of the connecting portion (1) is provided inside, and a tube member is provided at one end of the substantially cylindrical shape. A cap nut member (4) with a circular opening (6) for inserting (3);
The pipe member (3) is disposed on the outer peripheral surface along the periphery, and includes an inclined surface (8) that abuts the connection portion (1). The connection portion (1) and the cap nut member (4) An annular packing (7) for fixing the pipe member (3) to the connecting portion (1) in a watertight manner by being sandwiched,
In the connection structure of the tubular body composed of
An annular groove (9) is provided along the circumference of the pipe member (3), and the axial width of the annular groove (9) is greater than or equal to the axial width of the annular packing (7). With
Projecting into the circular opening (6) of the cap nut member (4) when connected, the periphery of the circular opening (6) of the cap nut member (4), and the annular groove (9) of the pipe member (3) A connecting structure for tubular bodies, comprising an annular plugging portion (10) disposed between the two.
上記被係合部（５）を、該係合部（２）の雄ねじに螺合する雌ねじによって構成したことを特徴とする、上記請求項１に記載の管体の接続構造。 The engaging portion (2) is a male screw provided on the outer peripheral surface of the connecting portion (1) formed in a cylindrical shape,
The pipe connection structure according to claim 1, wherein the engaged portion (5) is formed by a female screw screwed into a male screw of the engaging portion (2).
請求項１又は請求項２に記載の管体の接続構造。 The annular filling portion (10) is molded integrally with the annular packing (7),
The pipe connection structure according to claim 1 or 2.
請求項１又は請求項２に記載の管体の接続構造。 The annular filling portion (10) is configured as a separate member from the annular packing (7),
The pipe connection structure according to claim 1 or 2.
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