JP3936549B2

JP3936549B2 - Rotating connection joint

Info

Publication number: JP3936549B2
Application number: JP2001118732A
Authority: JP
Inventors: 育實太田
Original assignee: 育實太田
Priority date: 2000-04-17
Filing date: 2001-04-17
Publication date: 2007-06-27
Anticipated expiration: 2021-04-17
Also published as: JP2002005368A

Description

【０００１】
【発明の属する技術分野】
本発明は、器具配管と建物配管との接続継手、更に詳しくは洗面台（洗面化粧台、洗面洗髪化粧台を包含する）、流し台等に設けられる器具配管と、建物配管との接続に特に好適な接続継手に関するものである。
【０００２】
【従来技術】
従来、洗面台、流し台等は、キャビネット内のトラップ等を経たトラップ側配管と床下配管とを接続して、排水経路を構成している。
また、洗面器、流し等の水栓、湯水混合栓は、器具配管である水栓側配管と、建物配管（壁配管）とを接続して、給水、給湯経路を構成している。
【０００３】
ところで、建物配管である床下配管や壁配管は、設計通りに配管施工されないことが往々にしてあり、その場合、トラップ側配管や、水栓側配管との間に位置ズレ（管芯相互のズレ）が生じる。
また、洗面台や流し台をリフォームで交換したりすると、交換される洗面台、流し台の種類の相違からトラップ側配管や、水栓側配管と、前記建物配管である床下配管や壁配管との間に位置ズレが生じる現実がある。
その際、位置ズレを吸収してトラップ側配管と床下配管とを接続する場合や、水栓側配管と壁配管とを接続する場合には、その位置ズレ寸法が一定ではないことから、フレキシブル管を使用したり、種々な長さの金属製の接続継手を製作して、対処しているのが実状である。
しかしながら、接続継手の場合、位置ズレ寸法に応ずべく、長さを異にする多種類を製作用意して対処しなければならないし、フレキシブル管では、前記位置ズレ寸法に対する長さの設定が難しく、洗面台Ｂや流し台の場合には、長さによってはトラップ側配管２００と、床下配管１００とを接続するフレキシブル管Ａ_１が図１０に示すように逆勾配になって排水が停滞したり、汚物が詰まったり、局部に強い応力が集中して長期的使用でヒビ割れが生じ、漏水させる等、いくつかの点で問題があった。
そこで、最近では、フレキシブル管Ａ_１は、衛生上、水密性及び気密性の安全上より支障があるために、特別の事情のない限り使用が規制されている。
【０００４】
【発明が解決しようとする課題】
本発明は上記従来事情に鑑みてなされたもので、その目的とする処は、建物配管と器具配管の間に位置ズレ（管芯のズレ）が生じていても両配管を接続することができる、構造簡単で工事の仕易い器具配管と建物配管との接続継手を提供することにある。
更に他の目的とする処は、排水性は勿論のこと耐久性を損なうことなく洗面台、流し台等のトラップ側配管と、床下配管とを接続することができる接続継手を提供することにある。
【０００５】
【課題を解決するための手段】
上記課題を解決する目的のために講じた技術的手段は、所望長さの管両端に接続管部を逆方向へ直角に曲折した少なくとも２本の継手用管が回転可能に、且つ気密性、水密性可能に接続された接続部を構成し、該接続部は、一方の継手用管の接続短管部の内周壁には、押圧されることによりＯリングがその全部を埋設させるに足りる断面積の環状凹部を形成するとともに、該環状凹部と並列の環状小溝を形成し、接続短管部の端部から環状小溝へ少なくとも１つのスリットを刻設し、他方の継手用管の接続短管部の外周壁の周方向に、前記環状小溝に係合する少なくとも２以上の小突起を均等配設してなる回転自在の接続継手である。
【０００６】
（削除）
【０００７】
また、所望長さの管両端に接続短管部を逆方向へ直角に曲折した少なくとも２本の継手用管が、その相互の接続短管部に位置するＯリングを介して接続して接続部を構成し、この接続部は、一方の継手用管の接続短管部の内周壁には押圧されることによってＯリングがその全部を埋設させるに足りる断面積の環状凹部を形成し、他方の継手用管の接続短管部の外周壁には、Ｏリングを装填した前記環状凹部が位置されると、押圧で埋没していたＯリングが弾力で膨らみ嵌合する環状溝を刻設してなり、該環状溝の幅が、膨らみ嵌合したＯリングの断面の弦の長さより小さく、相互の継手用管の接続短管部の抜き挿しに環状溝口がＯリングに噛み込まれ、継手用管の接続短管部同志の抜き挿し防止をし、且つ継手用管相互を回転可能とする回転自在の接続継手である。
【０００８】
そして、回転自在の接続継手は、一方の継手用管の接続短管部の環状凹部の幅が、他方の継手用管の接続短管部の環状溝の幅より大きく、該環状溝の幅中央が、環状凹部の幅中央にほぼ位置するものである。
【０００９】
また、一方の継手用管の接続短管部の内周壁に環状凹部と並列の環状小溝が形成され、かつ少なくとも１つのスリットを接続短管部の端部から環状小溝へ刻設し、他方の継手用管の接続短管部の外周壁の周方向に、前記環状小溝に嵌合する少なくとも２以上の小突起が均等配設され、一方の継手用管の接続短管部に他方の継手用管の接続短管部を接続するに際して、スリットによる接続短管部の端部の拡張で小突起の環状小溝への嵌め込みがされ、継手用管同志の抜け止めを強化する回転自在の接続継手である。
【００１０】
なおまた、一方の継手用管が、遊端の接続短管部を器具配管に接続し、他方の継手用管が遊端の接続短管部を建物配管に接続し、器具配管への接続には、環状パッキン材を介して一方の遊端の接続短管部が回転可能に袋ナットで螺合され、建物配管への接続には、臭気止めパッキン材を介して他方の遊端の接続短管部が嵌入されるものである。
【００１１】
なお、前記器具配管への接続が一方の遊端の接続短管部を回転可能にするということは、接続短管部の周方向へ回転可能に接続することを指し、また、建物配管への接続が、他方の遊端の接続短管部を嵌入させるということは、建物の床面や壁面から突出する配管部へ周方向へ回転可能に、且つ、軸方向に摺動可能に接続することを指す。
【００１２】
また、前記建物配管が床下配管であり、且つ器具配管が洗面台、流し台等のトラップ側配管であると好適なものである。
【００１３】
以上の手段によれば、建物配管（例えば床下配管）に対して、接続継手自体の可動半径（数本の継手用管を一直線状に接続した状態）で描かれる仮想面積内で位置ズレしている器具配管（例えばトラップ側配管）であれば、建物配管との接続部を中心にした接続継手自体の回転機能及び両継手用管相互の回転機能を利用して、遊端となる他方の接続短管部を器具配管に対応させ、接続することが可能となる。また、建物配管への接続継手の接続が軸方向へ摺動可能であるので、建物と器具との狭く、且つ一律でない空間での施工を容易にすることになる。
【００１４】
【発明の実施の形態】
次に、本発明の実施の形態を図面に基づいて説明する。
図面は、洗面台のトラップ側配管（器具配管）と床下配管（建物配管）とを接続する接続継手の実施の形態を示しており、符号Ａは接続継手、符号Ｂは洗面台、符号Ｃは床下である。（図２）
【００１５】
接続継手Ａは、本発明の実施の形態では上側の継手用管１と、下側の継手用管２との２本が接続一体化された回転自在のものである（図１）。
この継手用管１及び２は、硬質合成樹脂製や金属製である。
【００１６】
継手用管１及び２は、共に所望長さの管の両端に各々逆方向に向けて接続短管部（後述では立上げ管部１ａ，２ａ、垂下管部１ｂ，２ｂと称する）を直角状に曲折させてある。
【００１７】
上側継手用管１と下側継手用管２との２本は、その相互の接続短管部、即ち、垂下管部１ｂと立上げ管部２ａとがＯリング３を介して接続し、回転自在の接続部４を形成する。
接続部４は、一方の下側継手用管２の立上げ管部２ａの内周壁には、押圧されることによってＯリング３がその全部を埋没させるに足りる断面積の環状凹部５を形成し、他方の上側継手用管１の垂下管部１ｂの外周壁には、Ｏリング３を装填した前記環状凹部５が位置されると押圧で埋没していたＯリング３が、その弾力で膨らみ嵌合される環状溝６を刻設し、該環状溝６の幅ａが膨らみ嵌合したＯリング３の断面形状の弦の長さｂより同等、又は小さく、相互の継手用管１，２の接続短管部の抜き挿しに環状溝口６１がＯリング３に噛み込まれ、継手用管１，２の接続短管部同志の抜き挿し防止をし、且つ継手用管１，２相互を回転可能とする。（図３、図４参照）
【００１８】
また、上側継手用管１と下側継手用管２とが回転可能に、且つ気密性、水密性可能に接続された接続部４１を構成し、該接続部４１は、一方の下側継手用管２の立上げ管部２ａの内周壁には、押圧されることによりＯリング３がその全部を埋没させるに足りる断面積の環状凹部５を形成するとともに、該環状凹部５と並列の環状小溝５１を形成し、立上げ管部２ａの端縁部から環状小溝５１へ少なくとも１つのスリット５３を刻設し、他方の上側継手用管１の垂下管部１ｂの外周壁の周方向に、前記環状小溝５１へ係合する少なくとも２以上の小突起５２を均等配設する回転自在の接続継手である。（図５、図６、図７参照）
【００１９】
なお、上記接続部４１において、下側継手用管２の立上げ管部２ａの内周壁に形成された環状凹部５は、それに装填されたＯリング３が押圧される全部を埋没させるに足りる断面積を要し、上側継手用管１の垂下管部１ｂの外周壁には、Ｏリング３を装填した前記環状凹部５が位置されると、押圧し埋没していたＯリング３が、その弾力で膨らみ、嵌合する環状溝６を刻設し、該環状溝６の幅ａが膨らみ嵌合したＯリング３の断面形状の弦の長さｂより同等又は小さく、相互の継手用管１，２の抜き挿しに環状溝口６１がＯリング３に噛み込まれ、継手用管１，２同志の抜き挿し防止をし、且つ気密性、水密性を可能にするとともに、回転可能とすることができる。
【００２０】
なおまた、一方の継手用管２の環状凹部５の幅が、他の継手用管１の環状溝６の幅より大きく、該環状溝６の幅中央が環状凹部５の幅中央にほぼ位置させることによって、接続部４１の回転機能の確実性、及び気密性、水密性の確実性が得られるものである。
【００２１】
斯様に構成された接続継手Ａは、建物配管への接続には、下側継手用管２の垂下管部２ｂを、臭気止めパッキン材７の弾性膜７１を床下配管１００の床面上Ｌから突出する突出配管部１０１とで軽く挾み付けるようにして床下配管１００に水平方向回動可能に、且つ軸方向摺動可能に嵌入する。
そして、器具配管への接続には、上側継手用管１の立上げ管部２ａが環状パッキン材８を介してトラップ側配管や水栓側配管２００へ回転可能に袋ナット９で前記立上げ管部２ａに螺合される。（図２、図８参照）
【００２２】
この接続継手Ａは、図９に示すように下側の継手用管２の垂下管部２ｂと床下配管１００との嵌合部を中心に水平方向に回動させ、且つ上側の継手用管１を下側の継手用管２に対して水平方向に回動させることによって、両継手用管１，２を一直線状とする可動半径Ｒで描かれる仮想面積内であれば、継手用管１の立上げ管部１ａがどの平面視位置にもセットすることのできる自在性を持つ。
それ故、洗面台Ｂを仮置きにすることによって前もって得られているトラップ側配管２００の仮想位置直下に、床下配管１００の突出配管部１０１を中心とする水平回転機能と上側継手用管１の下側継手用管２に対する水平回動機能とを併用して上側継手用管１の立上げ管部１ａを配置することができる。
そして、トラップ側配管２００に対応して底板Ｍに開孔されている配管取出し孔Ｍ₁ から前記上側継手用管１の立上げ管部１ａが内部空間に進入するように洗面台Ｂへセットし、袋ナット９を立上げ管部１ａに螺合すると、自ずとトラップ側配管２００は、前記環状パッキン材８に弾接するように上側継手用管１の立上げ管部１ａに内嵌され、結果的には、トラップ側配管２００と、床下配管１００とが水密状に接続される。
最後に、前記配管取出し孔Ｍ₁ を塞ぐように配管固定用化粧板１０を底板Ｍにネジ１１止めし、全ての接続作業が終了する（図８参照）。
【００２３】
【実施例】
本発明の実施形態は、接続継手Ａが上側継手用管１、下側継手用管２の接続部４と各々の接続短管部（仕上げ管部１ａ、垂下管部２ｂ）と間の寸法が共に７５ｍｍとし、よって、床下配管１００及び洗面台Ｂ等の器具配管（トラップ側配管）２００との接続の為の接続継手Ａの工事において、両継手用管１，２が一直線状となる可動半径Ｒは１５０ｍｍとする。
また、接続継手Ａの高さは、床面Ｌから洗面台Ｂ等の底板Ｍまでの寸法が、即ち、約１１０ｍｍ程度とし、少なくとも床面Ｌ内の床下配管１００と、洗面台Ｂ等の底板内の器具配管２００との接続が出来るようにした寸法である。
そして、床面Ｌと洗面台Ｂ等の床板Ｍとの取付工事上の水平方向への位置ズレは、床下配管１００を中心とする接続継手Ａの可動半径Ｒ１５０ｍｍ以内に収められ、また、鉛直方向への位置ズレは、下側継手用管２の垂下管部２ｂによる臭気止めパッキン材７を介しての床下配管１００への嵌入が、垂下管部２ｂの軸方向への摺動を可能とし、吸収することが出来る。
【００２４】
更に、本発明では、前記するように洗面台に限るものではなく、流し台はもとより、シャワーブース等、設置型の設備の器具配管と、建物配管との接続にも応用することができる。
【００２５】
ところで、器具配管２００と建物配管１００との接続工事のような狭い空間での作業を容易に、且つ迅速に、そして合理的に行う為には、本発明のような回転自在の接続継手Ａを用いることが必須条件となる。しかしながら、上側継手用管１と下側継手用管２との接続部４，４１が接続継手Ａの重用構成となる。
上記接続部４，４１は、回転自在で且つ気密性、水密性に秀れていなければならない。それには、上側継手用管１、及び下側継手用管２は別々に成形するが接続したなら外れることのないように一体化し、且つ気密的、水密的であって、且つ回転可能に構成していなければならない。
そこで、上側継手用管１の垂下管部１ｂと下側継手用管２の立上げ管部２ａとの接続部４，４１が気密的、水密的にされるには、接続したらＯリング３を介して、外れないようにし、且つＯリング３によって気密的、水密的にする。
【００２６】
その一手段として、接続部４は、下側継手用管２の立上げ管部２ａの内周壁には押圧されることによってＯリング３の全部が埋没されるに足る断面積の環状凹部５を形成し、その環状凹部５に装填されたＯリング３によって接続部４の回転できる構成とし、且つ気密性、水密性の構成とする。また、上側継手用管１の垂下管部１ｂの外周壁には、環状溝６を刻設し、下側継手用管２の立上げ管部２ａと上側継手用管１の垂下管部１ａとの接続部４での抜き挿しに環状溝口６１がＯリング３に噛み込んで抜き挿し防止をし、外れることがない。
【００２７】
そして、一方の下側継手用管２の環状凹部５の幅が、他方の上側継手用管１の環状溝６の幅より大きくし、該環状溝６の幅中央が環状凹部５の幅中央にほぼ位置させることによって、接続部４の構成を精巧のものにし、気密性、水密性を確実にし、更に、Ｏリング３への環状溝口６１の噛み込みが確実になり、接続部４の抜き挿し防止をし、外れることが全くなくなる。
【００２８】
次の手段としては、下側継手用管２の立上げ管部２ａの内周壁には環状凹部５の他に、この環状凹部５と並列の環状小溝５１を形成し、上側継手用管１の垂下管部１ｂの外周壁には、前記環状小溝５１に係合する少なくとも２以上の小突起５２を均等配設する。この接続部４１では、環状小溝５１に対する小突起５２の係合が一層の外れ防止を確実化することになる。
【００２９】
したがって、接続部４１では、環状小溝５１に小突起５２が係合されることによって、外れ防止を確実化するので、環状凹部５に装填されたＯリング３が環状溝６に位置し、その環状溝口６１で噛み込まれて、下側継手用管２の立上げ管部２ａと上側継手用管１の垂下管部１ｂとの接続部４１での抜き挿し防止をすることの確実性がなくてもよいことになる。そして、Ｏリング３は、気密性、水密性に専用されるようになってもよいことになる。
【００３０】
【発明の効果】
本発明は以上のように、建物配管と器具配管との間に、建物配管の配管施工誤差やリフォームによる種類が異なる洗面台や流し台等の設置で、建物配管に対して器具配管に位置ズレが生じても、その位置ズレ寸法が建物配管に回動可能に接続される一端を中心にする可動半径（複数本の継手用管を一直線状にした状態）で描かれる仮想面積内の位置ズレであれば、わざわざ多種類の長さの接続手段を製作用意して対処することなく、建物配管と器具配管とを接続する便利な接続継手を提供することができる。
その上、前記建物配管が床下配管、器具配管がトラップ側配管である洗面台や流し台等の場合には、蛇腹管のように排水が停滞したり、詰まったり、漏水等を招かず、しかも耐久性を損なうことなく両配管を接続することができる。
建物配管と器具配管とを接続する接続継手が回転自在の接続部を構成しているために、接続継手の一端を中心とした可動半径で描かれる仮想面積内ならば、いずれにも接続継手の他端を位置づけることができる。
そして、接続継手の接続部は、接続したならば回転できるが外れないように構成されているので、接続継手が一体部品として有効に取扱えるので工事作業が容易且つ簡単にできるようになる。
回転自在の接続継手の接続部は、排水が停滞したり、詰まったり、漏水等を招くことなく、Ｏリングを有効に使用して気密に、水密にすることができ、且つ接続部の外れが生じないようにできる。
よって、回転自在の接続継手は、接続部での外れがないので、衛生上、安全上に支障ないようにできる。
また、接続部の外れないようにすることは、気密性、水密性の確実性が得られ、漏水、臭気漏れがない。
【図面の簡単な説明】
【図１】回転自在の接続継手の全体斜視図。
【図２】回転自在の接続継手の使用状態を示す断面図。
【図３】回転自在の接続継手の一実施例による接続部の一部拡大断面図。
【図４】接続部の抜き挿し防止の機構説明図。
【図５】回転自在の接続継手の他の実施例による接続部の一部拡大断面図。
【図６】上側継手用管の接続短管部（垂下管部）における接続部の構成説明図。
【図７】ａは下側継手用管の接続短管部（立上げ管部）における接続部の構成説明図、ｂは接続部の構成説明のための縦断面図。
【図８】回転自在の接続継手を器具配管（トラップ配管）へ接続する状態図。
【図９】接続継手の可動範囲説明図。
【図１０】従来の接続継手の使用状態図。
【符号の説明】
Ａ：接続継手
Ｂ：洗面台
Ｃ：床下
１：上側継手用管
２：下側継手用管
１ａ，２ａ：立上げ管部
１ｂ，２ｂ：垂下管部
３：Ｏリング
４，４１：接続部
５：環状凹部
６：環状溝
６１：環状溝口
７：臭気止めパッキン材
８：環状パッキン材
９：袋ナット
５１：環状小溝
５２：小突起
５３：スリット[0001]
BACKGROUND OF THE INVENTION
The present invention is particularly suitable for connection between appliance pipes and building pipes, more particularly appliance pipes provided on washstands (including vanities and vanities), sinks, etc., and building pipes. This relates to a secure connection joint.
[0002]
[Prior art]
Conventionally, a wash basin, a sink, and the like constitute a drainage path by connecting a trap-side pipe that has passed through a trap or the like in a cabinet and an underfloor pipe.
Further, a faucet such as a basin, a sink, and a hot and cold water mixing faucet connect a faucet side pipe, which is an instrument pipe, and a building pipe (wall pipe) to form a water supply and hot water supply path.
[0003]
By the way, underfloor pipes and wall pipes, which are building pipes, are often not installed as designed. In this case, the gap between the trap side pipe and the faucet side pipe (the gap between the pipe cores). ) Occurs.
In addition, if the wash basin or sink is replaced by renovation, the trap side pipe, faucet side pipe, and the floor pipe or wall pipe, which are the building pipes, may be replaced due to the difference in the type of the wash basin or sink to be replaced. There is a reality where positional deviation occurs.
At that time, when connecting the trap side pipe and the underfloor pipe by absorbing the positional deviation, or when connecting the faucet side pipe and the wall pipe, the positional deviation dimension is not constant. The actual situation is to cope with this by using a metal connection joint of various lengths.
However, in the case of connecting joints, it is necessary to prepare and deal with various types of different lengths according to the positional deviation dimensions, and in flexible pipes, it is difficult to set the length for the positional deviation dimensions, In the case of the wash basin B or sink, depending on the length, the flexible pipe A ₁ connecting the trap side pipe 200 and the underfloor pipe 100 has a reverse slope as shown in FIG. There were several problems, such as clogging, strong stress concentrated on the local area, cracks caused by long-term use, and water leakage.
Therefore, recently, the flexible tube A ₁ is hygienic, because of the trouble from the water-tightness and airtightness of the safety, and the use unless special circumstances are regulated.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described conventional circumstances, and the intended process is that both pipes can be connected even if there is a positional shift (displacement of the pipe core) between the building pipe and the instrument pipe. The purpose of the present invention is to provide a connection joint between an instrument pipe and a building pipe that are simple in structure and easy to work on.
Still another object of the present invention is to provide a connection joint capable of connecting a trap side pipe such as a wash basin and a sink and an underfloor pipe without impairing durability as well as drainage.
[0005]
[Means for Solving the Problems]
The technical means taken for the purpose of solving the above-mentioned problem is that at least two joint pipes having connection pipe portions bent at right angles in opposite directions at both ends of a pipe having a desired length are rotatable and airtight. The connecting portion is connected so as to be watertight, and the connecting portion is not enough to allow the O-ring to be embedded in the inner peripheral wall of the connecting short pipe portion of one joint pipe. An annular recess having an area is formed, an annular small groove is formed in parallel with the annular recess, at least one slit is formed from the end of the connecting short tube portion to the annular small groove, and the connecting short tube of the other joint tube It is a rotatable connecting joint in which at least two or more small protrusions that engage with the annular small groove are evenly arranged in the circumferential direction of the outer peripheral wall of the portion.
[0006]
(Delete)
[0007]
Further, at least two joint pipes, which are bent at right angles to the opposite direction at both ends of the pipe having a desired length, are connected via an O-ring located in the connection short pipe part. This connecting portion forms an annular recess having a cross-sectional area sufficient to embed the entire O-ring by being pressed on the inner peripheral wall of the connecting short tube portion of one joint pipe, When the annular recess loaded with the O-ring is positioned on the outer peripheral wall of the connecting short tube portion of the joint pipe, an annular groove is formed in which the O-ring buried by pressing is bulged and fitted with elasticity. The width of the annular groove is smaller than the length of the chord of the cross-section of the O-ring that is swollen and fitted, and the annular groove is inserted into the O-ring to insert and remove the connecting short pipe portion of the joint pipe. Rotation that prevents the pipe connection short pipes from being inserted or removed and enables the joint pipes to rotate together. It is a resident of the connection joint.
[0008]
The rotatable connecting joint is such that the width of the annular recess of the connecting short pipe portion of one joint pipe is larger than the width of the annular groove of the connecting short pipe portion of the other joint pipe, and the center of the width of the annular groove is However, it is located approximately at the center of the width of the annular recess.
[0009]
In addition, an annular small groove parallel to the annular recess is formed on the inner peripheral wall of the connecting short pipe portion of one joint pipe, and at least one slit is engraved from the end of the connecting short pipe portion to the annular small groove, In the circumferential direction of the outer peripheral wall of the connecting short pipe portion of the joint pipe, at least two or more small protrusions that fit into the annular small groove are arranged uniformly, and the connecting short pipe portion of one joint pipe is used for the other joint. When connecting the short pipe section of the pipe, the end of the short pipe section is extended by a slit so that the small protrusion is fitted into the annular small groove, and this is a rotatable connection joint that strengthens the prevention of the joint pipes from coming off. is there.
[0010]
In addition, one joint pipe connects the free end connection short pipe section to the instrument pipe, and the other joint pipe connects the free end connection short pipe section to the building pipe, for connection to the instrument pipe. The connection short pipe part of one free end is rotatably screwed with a cap nut through an annular packing material, and the connection short of the other free end is connected to a building pipe via an odor-proof packing material. A pipe part is inserted.
[0011]
In addition, that the connection to the appliance piping enables the connection short pipe section of one free end to rotate means that the connection short pipe section can be rotated in the circumferential direction, and the connection to the building piping The connection is to insert the connecting short pipe part at the other free end, so that the pipe part protruding from the floor or wall surface of the building can be rotated in the circumferential direction and slidable in the axial direction. Point to.
[0012]
In addition, it is preferable that the building pipe is an underfloor pipe and the appliance pipe is a trap side pipe such as a wash basin or a sink.
[0013]
According to the above means, the building pipe (for example, the underfloor pipe) is displaced within the virtual area drawn by the movable radius of the connection joint itself (with several joint pipes connected in a straight line). For other equipment pipes (for example, trap side pipes), the other connection, which becomes the free end, using the rotation function of the connection joint itself centered on the connection with the building pipe and the rotation function between the pipes for both joints It is possible to connect the short pipe portion to the appliance piping. In addition, since the connection of the connection joint to the building pipe is slidable in the axial direction, it is easy to construct in a narrow and non-uniform space between the building and the appliance.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
The drawing shows an embodiment of a connection joint that connects a trap side pipe (appliance pipe) and an underfloor pipe (building pipe) of a wash basin, where reference A is a connection joint, reference B is a wash basin, and reference C is Under the floor. (Figure 2)
[0015]
In the embodiment of the present invention, the connecting joint A is a rotatable joint in which the upper joint pipe 1 and the lower joint pipe 2 are connected and integrated (FIG. 1).
The joint pipes 1 and 2 are made of hard synthetic resin or metal.
[0016]
In the joint pipes 1 and 2, short pipe portions (hereinafter referred to as rising pipe portions 1 a and 2 a and drooping pipe portions 1 b and 2 b) are formed in a right-angled manner in opposite directions at both ends of a pipe having a desired length. Is bent.
[0017]
Two of the upper joint pipe 1 and the lower joint pipe 2 are connected to each other through a short pipe section, that is, a droop pipe section 1b and a rising pipe section 2a are connected via an O-ring 3. A flexible connecting portion 4 is formed.
The connecting portion 4 forms an annular recess 5 having a cross-sectional area sufficient for the O-ring 3 to be buried in the inner peripheral wall of the rising pipe portion 2a of the lower joint pipe 2 on one side. When the annular recess 5 loaded with the O-ring 3 is positioned on the outer peripheral wall of the hanging pipe portion 1b of the other upper joint pipe 1, the O-ring 3 buried by pressing is swelled by its elasticity. An annular groove 6 to be joined is engraved, and the width a of the annular groove 6 is equal to or smaller than the chord length b of the cross-sectional shape of the O-ring 3 in which the annular groove 6 swells and fits. An annular groove 61 is inserted into the O-ring 3 for inserting / removing the connecting short pipe portion, preventing the connecting short pipe portions of the connecting pipes 1 and 2 from being inserted / removed, and allowing the connecting pipes 1 and 2 to rotate. And (See Figs. 3 and 4)
[0018]
Further, the upper joint pipe 1 and the lower joint pipe 2 constitute a connection portion 41 connected to be rotatable and airtight and watertight, and the connection portion 41 is for one lower joint. On the inner peripheral wall of the rising pipe portion 2 a of the pipe 2, an annular recess 5 having a cross-sectional area sufficient for the O-ring 3 to be entirely buried by being pressed is formed, and an annular small groove parallel to the annular recess 5 51, and at least one slit 53 is engraved from the edge of the rising pipe portion 2a to the annular small groove 51, and in the circumferential direction of the outer peripheral wall of the hanging pipe portion 1b of the other upper joint pipe 1, This is a rotatable connection joint in which at least two or more small protrusions 52 that engage with the annular small groove 51 are evenly arranged. (See FIGS. 5, 6, and 7)
[0019]
In the connection part 41, the annular recess 5 formed in the inner peripheral wall of the rising pipe part 2a of the lower joint pipe 2 is a cut that is sufficient to bury all of the O-rings 3 loaded therein. When the annular recess 5 loaded with the O-ring 3 is positioned on the outer peripheral wall of the drooping pipe portion 1b of the upper joint pipe 1, the O-ring 3 that has been pressed and buried has its elasticity. An annular groove 6 which is swelled and fitted is engraved, and the width a of the annular groove 6 is equal to or smaller than the length b of the chord of the cross-sectional shape of the O-ring 3 which is swelled and fitted. An annular groove 61 is inserted into the O-ring 3 for insertion / removal of 2 to prevent the insertion / removal of the joint pipes 1 and 2, enabling airtightness and watertightness, and enabling rotation. .
[0020]
In addition, the width of the annular recess 5 of one joint pipe 2 is larger than the width of the annular groove 6 of the other joint pipe 1, and the center of the width of the annular groove 6 is positioned substantially at the center of the width of the annular recess 5. By this, the certainty of the rotation function of the connection part 41 and the certainty of airtightness and watertightness are obtained.
[0021]
The connection joint A configured in this way is connected to the building piping by using the drooping pipe portion 2b of the lower joint pipe 2, the elastic film 71 of the odor-proof packing material 7 and the floor surface L of the floor piping 100. It is inserted into the underfloor pipe 100 so as to be able to turn in the horizontal direction and to be slidable in the axial direction so as to be lightly squeezed with the protruding pipe portion 101 protruding from the bottom.
For connection to the instrument piping, the rising pipe portion 2a of the upper joint pipe 1 can be rotated to the trap side pipe or the faucet side pipe 200 via the annular packing material 8 with the cap nut 9 and the rising pipe. Screwed into the portion 2a. (See Fig. 2 and Fig. 8)
[0022]
As shown in FIG. 9, the connecting joint A is rotated horizontally around the fitting portion between the hanging pipe portion 2 b of the lower joint pipe 2 and the underfloor pipe 100, and the upper joint pipe 1. Is rotated in the horizontal direction with respect to the lower joint pipe 2 so that both joint pipes 1 and 2 are within a virtual area drawn by a movable radius R that makes the joint line 1 straight. The riser pipe portion 1a can be set at any plan view position.
Therefore, the horizontal rotation function centering on the protruding pipe portion 101 of the underfloor pipe 100 and the upper joint pipe 1 are directly below the virtual position of the trap side pipe 200 obtained in advance by temporarily placing the wash basin B. The rising pipe portion 1a of the upper joint pipe 1 can be disposed in combination with the horizontal rotation function for the lower joint pipe 2.
Then, set the basins B as start-up tube portion 1a of the for the upper joint pipe 1 from the pipe take-out hole M ₁ that are opened in the bottom plate M corresponding to the trap pipe 200 enters the interior space When the cap nut 9 is screwed into the rising pipe portion 1a, the trap side pipe 200 is naturally fitted into the rising pipe portion 1a of the upper joint pipe 1 so as to elastically contact the annular packing material 8. The trap side pipe 200 and the underfloor pipe 100 are connected in a watertight manner.
Finally, the pipe taken out pipe fixing veneer 10 so as to close the holes M ₁ screw 11 is fastened to the bottom plate M, all connection work is completed (see FIG. 8).
[0023]
【Example】
In the embodiment of the present invention, the connection joint A has a dimension between the connection part 4 of the upper joint pipe 1 and the lower joint pipe 2 and each connection short pipe part (finished pipe part 1a, drooping pipe part 2b). Both of them are set to 75 mm. Therefore, in the construction of the connecting joint A for connecting with the equipment piping (trap side piping) 200 such as the underfloor piping 100 and the wash basin B, the movable radii in which the pipes 1 and 2 for both joints are straight. R is 150 mm.
The height of the connecting joint A is such that the dimension from the floor surface L to the bottom plate M such as the washstand B is about 110 mm, and at least the underfloor pipe 100 in the floor L and the bottom plate of the washstand B, etc. The dimension is such that it can be connected to the inner instrument pipe 200.
The horizontal displacement in the installation work between the floor surface L and the floor board M such as the wash basin B is accommodated within the movable radius R150 mm of the connection joint A centering on the underfloor pipe 100, and in the vertical direction. The misalignment of the lower pipe 2 can be inserted into the underfloor pipe 100 through the odor-preventing packing material 7 by the drooping pipe part 2b of the lower joint pipe 2, and the drooping pipe part 2b can slide in the axial direction. Can be absorbed.
[0024]
Furthermore, the present invention is not limited to the wash basin as described above, and can be applied not only to the sink, but also to the connection between the equipment piping of the installation type equipment such as a shower booth and the building piping.
[0025]
By the way, in order to easily, quickly and rationally work in a narrow space such as the connection work between the appliance pipe 200 and the building pipe 100, a rotatable connection joint A as in the present invention is provided. Use is an essential condition. However, the connecting portions 4 and 41 between the upper joint pipe 1 and the lower joint pipe 2 serve as a heavy construction of the connection joint A.
The connecting portions 4 and 41 must be rotatable and have excellent airtightness and watertightness. For this purpose, the upper joint pipe 1 and the lower joint pipe 2 are formed separately, but are integrated so that they will not come off if they are connected, and are constructed to be airtight, watertight and rotatable. Must be.
Therefore, in order to make the connection parts 4 and 41 between the drooping pipe part 1b of the upper joint pipe 1 and the rising pipe part 2a of the lower joint pipe 2 airtight and watertight, the O-ring 3 is attached after the connection. Through the O-ring 3 and airtight and watertight.
[0026]
As one means, the connecting portion 4 has an annular recess 5 having a cross-sectional area sufficient to be buried in the entire O-ring 3 by being pressed against the inner peripheral wall of the rising pipe portion 2a of the lower joint pipe 2. The connection portion 4 can be rotated by the O-ring 3 formed and loaded in the annular recess 5, and the structure is airtight and watertight. In addition, an annular groove 6 is formed on the outer peripheral wall of the drooping pipe portion 1b of the upper joint pipe 1 so that the rising pipe portion 2a of the lower joint pipe 2 and the drooping pipe portion 1a of the upper joint pipe 1 The annular groove 61 is engaged with the O-ring 3 for the insertion / removal at the connecting portion 4 to prevent the removal / removal, so that it does not come off.
[0027]
The width of the annular recess 5 of one lower joint pipe 2 is larger than the width of the annular groove 6 of the other upper joint pipe 1, and the center of the width of the annular groove 6 is set to the center of the width of the annular recess 5. By locating the connection portion 4, the structure of the connection portion 4 is made elaborate, airtightness and watertightness are ensured, and further, the annular groove 61 is securely engaged with the O-ring 3. Prevents it from coming off at all.
[0028]
As the next means, in addition to the annular recess 5, an annular small groove 51 parallel to the annular recess 5 is formed on the inner peripheral wall of the rising pipe portion 2 a of the lower joint pipe 2. At least two or more small protrusions 52 that engage with the annular small groove 51 are equally disposed on the outer peripheral wall of the hanging pipe portion 1b. In this connection portion 41, the engagement of the small protrusion 52 with the annular small groove 51 ensures further prevention of disengagement.
[0029]
Therefore, in the connecting portion 41, the small protrusion 52 is engaged with the annular small groove 51 to ensure the prevention of disengagement, so that the O-ring 3 loaded in the annular recess 5 is located in the annular groove 6, and the annular There is no certainty to prevent the insertion and removal at the connecting portion 41 between the rising pipe portion 2a of the lower joint pipe 2 and the depending pipe section 1b of the upper joint pipe 1 by being bitten by the groove 61. It will be good. The O-ring 3 may be dedicated to airtightness and watertightness.
[0030]
【The invention's effect】
As described above, according to the present invention, there is a misalignment in the equipment piping with respect to the building piping by installing a wash basin or a sink, etc., which has different types of building piping due to piping construction errors and remodeling, between the building piping and the equipment piping. Even if it occurs, it is a positional deviation within a virtual area that is drawn with a movable radius (with a plurality of joint pipes in a straight line) centered on one end that is pivotally connected to the building pipe. If there is, it is possible to provide a convenient joint for connecting the building pipe and the instrument pipe without having to prepare and deal with various types of connecting means.
In addition, when the building piping is underfloor piping and the equipment piping is a trap side piping, the drainage does not stagnate, clog, leak, etc. like a bellows tube and is durable. Both pipes can be connected without loss of performance.
Since the connecting joint that connects the building piping and the equipment piping constitutes a rotatable connecting portion, any connecting joint can be used as long as it is within a virtual area drawn with a movable radius centered on one end of the connecting joint. The other end can be positioned.
And since the connection part of a connection joint can be rotated if it connects, but it is comprised so that it may not remove | deviate, since a connection joint can be handled effectively as an integral part, construction work can be performed easily and simply now.
The connection part of the rotatable connection joint can be made airtight and watertight by effectively using the O-ring without drainage stagnation, clogging, water leakage, etc. It can be prevented from occurring.
Therefore, since the rotatable connection joint does not come off at the connection portion, it is possible to prevent sanitary and safety problems.
Further, by preventing the connection portion from being disconnected, the certainty of airtightness and watertightness is obtained, and there is no water leakage or odor leakage.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a rotatable connection joint.
FIG. 2 is a cross-sectional view showing a usage state of a rotatable connection joint.
FIG. 3 is a partially enlarged cross-sectional view of a connecting portion according to an embodiment of a rotatable connecting joint.
FIG. 4 is an explanatory diagram of a mechanism for preventing insertion / removal of a connecting portion.
FIG. 5 is a partially enlarged cross-sectional view of a connecting portion according to another embodiment of a rotatable connecting joint.
FIG. 6 is a configuration explanatory diagram of a connection portion in a connection short tube portion (a drooping tube portion) of the upper joint pipe.
7A is a configuration explanatory diagram of a connection portion in a connection short pipe portion (rising pipe portion) of the lower joint pipe, and b is a longitudinal sectional view for explaining a configuration of the connection portion. FIG.
FIG. 8 is a state diagram in which a rotatable connection joint is connected to an instrument pipe (trap pipe).
FIG. 9 is an explanatory diagram of a movable range of a connection joint.
FIG. 10 is a view showing the state of use of a conventional connection joint.
[Explanation of symbols]
A: Connection joint B: Wash basin C: Under floor 1: Upper joint pipe 2: Lower joint pipe 1a, 2a: Rising pipe section 1b, 2b: Drooping pipe section 3: O-ring 4, 41: Connection section 5 : Annular recess 6: Annular groove 61: Annular groove 7: Odor-proof packing material 8: Annular packing material 9: Cap nut 51: Annular groove 52: Small protrusion 53: Slit

Claims

所望長さの管両端に接続短管部を逆方向へ直角に折曲した少なくとも２本の継手用管が回転可能に、且つ気密性、水密性可能に接続された接続部を構成し、該接続部は、一方の継手用管の接続短管部の内周壁には、押圧されることによりＯリングがその全部を埋没させるに足りる断面積の環状凹部を形成するとともに、該環状凹部と並列の環状小溝を形成し、接続短管部の端縁部から環状小溝へ少なくとも１つのスリットを刻設し、他方の継手用管の接続短管部の外周壁の周方向に、前記環状小溝に係合する少なくとも２以上の小突起を均等配設することからなる回転自在の接続継手。A connecting portion in which at least two joint pipes each having a short connecting pipe portion bent at right angles in opposite directions at both ends of a pipe having a desired length are configured to be rotatable and airtight and watertight; The connecting portion forms, on the inner peripheral wall of the connecting short pipe portion of one of the joint pipes, an annular recess having a cross-sectional area sufficient to bury the entire O-ring, and is parallel to the annular recess. An annular small groove is formed, at least one slit is formed in the annular small groove from the edge of the connecting short pipe portion, and the annular small groove is formed in the circumferential direction of the outer peripheral wall of the connecting short pipe portion of the other joint pipe. A rotatable connection joint comprising uniformly arranging at least two or more small protrusions to be engaged.

所望長さの管両端に接続短管部を逆方向へ直角に曲折した少なくとも２本の継手用管がその相互の接続短管部に位置するＯリングを介して回転可能に接続し、接続部を構成し、この接続部は、一方の継手用管の接続短管部の内周壁には、押圧されることによってＯリングがその全部を埋没させるに足りる断面積の環状凹部を形成し、他方の継手用管の接続短管部の外周壁には、Ｏリングを装填した前記環状凹部が位置されると、押圧で埋没していたＯリングが弾力で膨らみ嵌合する環状溝を刻設してなり、該環状溝の幅が膨らみ嵌合したＯリングの断面形状の弦の長さより小さくし、相互の継手用管の接続短管部の抜き挿しに環状溝口がＯリングに噛み込まれ、継手用管の接続短管部同志の抜き挿し防止をし、且つ継手用管相互を回転可能とする回転自在の接続継手。At least two joint pipes bent at right angles in the opposite direction at both ends of a pipe having a desired length are rotatably connected via an O-ring located in the mutual connection short pipe part. The connecting portion is formed on the inner peripheral wall of the connecting short tube portion of one joint pipe by forming an annular recess having a cross-sectional area sufficient to bury the entire O-ring when pressed. When the annular recess filled with the O-ring is located on the outer peripheral wall of the connecting short pipe portion of the joint pipe, an annular groove is formed in which the O-ring buried by pressing is bulged and fitted. And the width of the annular groove is made smaller than the length of the chord of the cross-sectional shape of the O-ring that is swelled and fitted, and the annular groove is inserted into the O-ring to insert and remove the connecting short pipe portion of the joint pipe. Prevents insertion / removal of the connecting short pipes of the joint pipe and enables rotation of the joint pipes. Rotatable connection joint that.

一方の継手用管の接続短管部の環状凹部の幅が、他方の継手用管の接続短管部の環状溝の幅より大きく、該環状溝の幅中央が環状凹部の幅中央にほぼ位置することを特徴とする請求項２記載の回転自在の接続継手。The width of the annular recess in the connecting short tube portion of one joint pipe is larger than the width of the annular groove in the connecting short tube portion of the other joint tube, and the center of the width of the annular groove is substantially located at the center of the width of the annular recess. The rotatable connection joint according to claim 2, wherein:

一方の継手用管の接続短管部の内周壁に環状凹部と並列の環状小溝が形成され、かつ少なくとも１つのスリットを接続短管部の端部から環状小溝へ刻設し、他方の継手用管の接続短管部の外周壁の周方向に、前記環状小溝に係合する少なくとも２以上の小突起が均等配設され、一方の継手用管の接続短管部に他方の継手用管の接続短管部を接続するに際して、スリットによる接続短管部の端部の拡張で小突起の環状小溝への嵌め込みがされ、継手用管同志の抜け止めを強化することを特徴とする請求項２又は請求項３記載の回転自在の接続継手。An annular small groove parallel to the annular recess is formed on the inner peripheral wall of the connecting short pipe portion of one joint pipe, and at least one slit is engraved from the end of the connecting short pipe portion to the annular small groove. In the circumferential direction of the outer peripheral wall of the connecting short pipe portion of the pipe, at least two or more small protrusions that engage with the annular small groove are arranged uniformly, and the connecting short pipe portion of one joint pipe is connected to the other connecting pipe. 3. When connecting the connecting short pipe portion, the end of the connecting short pipe portion is extended by a slit so that the small protrusion is fitted into the annular small groove, thereby strengthening the retaining of the joint pipes. Alternatively, the rotatable connection joint according to claim 3.

一方の継手用管が、遊端の接続短管部を器具配管に接続し、他方の継手用管が遊端の接続短管部を建物配管に接続し、器具配管への接続には、環状パッキン材を介して、一方の遊端の接続短管部が回転可能に袋ナットで螺合され、建物配管への接続には、臭気止めパッキン材を介して、他方の遊端の接続短管部が嵌入されることを特徴とする請求項１乃至請求項４いずれか１項記載の回転自在の接続継手。One joint pipe connects the free end connection short pipe section to the equipment pipe, and the other joint pipe connects the free end connection short pipe section to the building pipe. The connecting short pipe part of one free end is rotatably screwed with a cap nut through the packing material, and the connecting short pipe of the other free end is connected to the building piping via the odor prevention packing material. The rotatable connecting joint according to any one of claims 1 to 4, wherein a portion is inserted.