JP2020197273A

JP2020197273A - Pipe joint

Info

Publication number: JP2020197273A
Application number: JP2019105101A
Authority: JP
Inventors: 隆裕田中; Takahiro Tanaka
Original assignee: Sanei Ltd
Current assignee: Sanei Ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-12-10
Anticipated expiration: 2039-06-05
Also published as: JP7242432B2

Abstract

To provide a pipe joint which can further properly connect several pieces of piping to one another so as to be capable of absorbing positional displacement.SOLUTION: A pipe joint 3 has: a cylindrical main body metal fitting 10 having a penetration hole 11 penetrating in a pipe axial direction D, and a connection port 14 connected to one piping 5 communicating with the penetration hole; a first connecting pipe 20 inserted into the main body metal fitting 10 from one opening part 11A of the penetration hole 11, and slidably connected in the pipe axial direction D; and a second connecting pipe 30 connected to a connection-side end part 24 of an insertion tip of the first connecting pipe 20, and connected to the other piping 4. The first connecting pipe 20 has a first regulation part 21 for regulating a slide of the first connecting pipe 20 in one direction to a first regulation position P1 by abutting on a diameter-contracted part 12 which protrudes to an internal peripheral part of the penetration hole 11, and the second connecting pipe 30 has a second regulation part 31 separating from a second lock part 13 of the main body metal fitting 10 in the pipe axial direction D in the first regulation position P1, and regulating the slide of the first connecting pipe 20 in the other direction by abutting on the second lock part 13.SELECTED DRAWING: Figure 3

Description

本発明は、管継手に関する。詳しくは、配管同士を接続する管継手に関する。 The present invention relates to pipe fittings. More specifically, the present invention relates to a pipe joint that connects pipes to each other.

水栓金具の配管同士の接続にフレキシブルホースが用いられたものが知られている（特許文献１）。フレキシブルホースを用いることにより、各配管の施工位置のズレを適切に吸収することができる。 It is known that a flexible hose is used for connecting the pipes of the faucet fittings (Patent Document 1). By using the flexible hose, it is possible to appropriately absorb the deviation of the construction position of each pipe.

特開平４−６０２８４号公報Japanese Unexamined Patent Publication No. 4-60284

しかし、水栓内部等の狭いスペースでフレキシブルホースを用いると、フレキシブルホースに急激的な曲げによる負荷が生じやすくなる。その結果、通水不良や漏水等の不具合が生じやすくなる。そこで、本発明は、配管同士をより適切に位置ズレ吸収可能に接続することのできる管継手を提供する。 However, if the flexible hose is used in a narrow space such as inside a faucet, a load due to abrupt bending is likely to occur in the flexible hose. As a result, problems such as poor water flow and water leakage are likely to occur. Therefore, the present invention provides a pipe joint capable of connecting pipes to each other more appropriately so as to be able to absorb misalignment.

上記課題を解決するために、本発明の管継手は次の手段をとる。 In order to solve the above problems, the pipe joint of the present invention takes the following means.

すなわち、本発明の管継手は、配管同士を接続する管継手であって、管軸方向に貫通する貫通孔及び貫通孔と連通する一方の配管との接続口を備えた筒状の本体金具と、本体金具に貫通孔の一方の開口から挿通されて管軸方向に摺動可能なように接続される第１接続管と、第１接続管の挿通された先の接続側端部と接続され、他方の配管と接続される第２接続管と、を有する。第１接続管が、貫通孔と管軸方向に連通する流通路と、貫通孔の内周部に突出して形成された第１係止部との突き当たりにより第１接続管の貫通孔の他方の開口に向けた摺動を第１規制位置に規制する第１規制部と、を有する。第２接続管が、第１規制位置では本体金具に形成された第２係止部から管軸方向に離間し、第２係止部との突き当たりにより第１接続管の貫通孔の一方の開口に向けた摺動を第２規制位置に規制する第２規制部を有する。 That is, the pipe joint of the present invention is a pipe joint that connects pipes to each other, and is a tubular main body fitting having a through hole penetrating in the pipe axis direction and a connection port for one pipe communicating with the through hole. , It is connected to the first connection pipe that is inserted into the main body metal fitting from one opening of the through hole and is connected so as to be slidable in the pipe axis direction, and the connection side end of the first connection pipe to which the first connection pipe is inserted. , A second connecting pipe that is connected to the other pipe. The other of the through hole of the first connecting pipe due to the abutment of the flow passage in which the first connecting pipe communicates with the through hole in the pipe axial direction and the first locking portion formed so as to project from the inner peripheral portion of the through hole. It has a first regulation part that regulates sliding toward the opening to the first regulation position. At the first regulation position, the second connecting pipe is separated from the second locking portion formed on the main body metal fitting in the pipe axial direction, and one of the through holes of the first connecting pipe is opened by abutting with the second locking portion. It has a second regulation part that regulates sliding toward the second regulation position.

上記構成によれば、本体金具と第２接続管とが、第１接続管を介して、互いの成す管軸方向の長さを摺動により調節できる状態に接続される。したがって、これらを曲げたり捩ったりすることなく、配管同士を適切に位置ズレ吸収可能に接続することができる。 According to the above configuration, the main body fitting and the second connecting pipe are connected via the first connecting pipe so that the lengths formed by each other in the pipe axial direction can be adjusted by sliding. Therefore, the pipes can be appropriately connected to each other so as to be able to absorb the misalignment without bending or twisting them.

また、本発明の管継手は、更に次のように構成されていてもよい。第１接続管が、本体金具に対して、管軸まわりの回転方向にも摺動可能なように接続される。 Further, the pipe joint of the present invention may be further configured as follows. The first connecting pipe is connected to the main body metal fitting so as to be slidable in the rotation direction around the pipe axis.

上記構成によれば、本体金具と第２接続管とが、第１接続管を介して、互いに相対回転可能な状態に接続される。したがって、これらを曲げたり捩ったりすることなく、配管同士をより適切に位置ズレ吸収可能に接続することができる。 According to the above configuration, the main body fitting and the second connecting pipe are connected to each other via the first connecting pipe so as to be relatively rotatable with each other. Therefore, the pipes can be more appropriately connected to each other so as to be able to absorb the misalignment without bending or twisting them.

また、本発明の管継手は、更に次のように構成されていてもよい。管継手が、更に、本体金具の貫通孔の一方の開口に蓋をするキャップを有する。本体金具の筒壁に、接続口が貫通孔と連通して管軸方向とは交差する方向に開口する形に形成される。 Further, the pipe joint of the present invention may be further configured as follows. The fitting also has a cap that caps one opening of the through hole of the body fitting. The connection port is formed on the tubular wall of the main body metal fitting so as to communicate with the through hole and open in a direction intersecting the pipe axis direction.

上記構成によれば、管継手により、互いに角度を成す形に設けられる配管同士を適切に位置ズレ吸収可能に接続することができる。 According to the above configuration, the pipe joints can appropriately connect the pipes provided at an angle to each other so as to be able to absorb the misalignment.

また、本発明の管継手は、更に次のように構成されていてもよい。本体金具の第１係止部が、貫通孔の経路途中に形成された縮径部とされる。そして、この縮径部と突き当たる第１接続管に形成された第１規制部が、第１接続管の貫通孔内に挿通される基端部から鍔状に張り出すフランジ部とされる。 Further, the pipe joint of the present invention may be further configured as follows. The first locking portion of the main body metal fitting is a reduced diameter portion formed in the middle of the path of the through hole. Then, the first regulating portion formed in the first connecting pipe that abuts against the reduced diameter portion is a flange portion that projects in a flange shape from the base end portion that is inserted into the through hole of the first connecting pipe.

上記構成によれば、第１接続管の第１規制部を、本体金具の第１係止部に対して全周に亘って安定性良く突き当てることができる。 According to the above configuration, the first regulating portion of the first connecting pipe can be stably abutted against the first locking portion of the main body fitting over the entire circumference.

また、本発明の管継手は、更に次のように構成されていてもよい。管継手が、混合水栓の水栓本体内に設けられる。 Further, the pipe joint of the present invention may be further configured as follows. A pipe joint is provided in the faucet body of the mixing faucet.

上記構成によれば、混合水栓の水栓本体内のような狭いスペース内であっても、管継手により、各配管を曲げたり捩ったりすることなく、配管同士を適切に位置ズレ吸収可能に接続することができる。 According to the above configuration, even in a narrow space such as inside the faucet body of a mixing faucet, the pipe joints can appropriately absorb the misalignment between the pipes without bending or twisting each pipe. Can be connected to.

第１の実施形態に係る管継手が適用された水栓金具の概略構成を表した斜視図である。It is a perspective view which showed the schematic structure of the faucet metal fitting to which the pipe joint which concerns on 1st Embodiment was applied. 水栓本体内に設けられた管継手による配管同士の接続構造を可視化して表した斜視図である。It is a perspective view which visualized and represented the connection structure between pipes by the pipe joint provided in the faucet body. 図２のＩＩＩ−ＩＩＩ線断面図である。FIG. 2 is a cross-sectional view taken along the line III-III of FIG. 第１接続管が第２規制位置に調整された状態を表した図３に対応する断面図である。It is sectional drawing corresponding to FIG. 3 which showed the state which the 1st connection pipe was adjusted to the 2nd regulation position.

以下に、本発明を実施するための形態について、図面を用いて説明する。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

《第１の実施形態》
（管継手３の概略構成について）
始めに、本発明の第１の実施形態に係る管継手３の構成について、図１〜図４を用いて説明する。なお、以下の説明において、前後上下左右等の各方向を示す場合には、各図中に示されたそれぞれの方向を指すものとする。 << First Embodiment >>
(About the outline configuration of pipe fitting 3)
First, the configuration of the pipe joint 3 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. In the following description, when each direction such as front-back, up-down, left-right, etc. is shown, it means each direction shown in each figure.

図１〜図２に示すように、本実施形態に係る管継手３は、洗面台の立壁部に取り付けられる混合水栓１の水栓本体２内に設けられている。上記混合水栓１は、外部から供給される湯と水とを内部で混合して吐出することが可能な機能を備える。具体的には、混合水栓１は、上記供給される湯水の混合割合を内部で調節する温調機能や、混合した湯水の吐止水を切り替える切替機能等の各種機能を備える。 As shown in FIGS. 1 and 2, the pipe joint 3 according to the present embodiment is provided in the faucet main body 2 of the mixing faucet 1 attached to the standing wall portion of the wash basin. The mixing faucet 1 has a function of internally mixing and discharging hot water and water supplied from the outside. Specifically, the mixing faucet 1 has various functions such as a temperature control function for internally adjusting the mixing ratio of the supplied hot water and a switching function for switching the discharge and stopping of the mixed hot water.

上記湯水の混合割合の調節は、図１に示すように、水栓本体２に取り付けられた温調ハンドル２Ａの操作によって行われる。また、図示は省略されているが、吐止水の切り替えは、上記水栓本体２に取り付けられた別のハンドルの操作によって行われる。図２〜図３に示すように、上記水栓本体２の内部には、その不図示の給湯管から供給された湯を水栓本体２内のサーモカートリッジへと送る湯側の配管経路に、上流側の第１配管４と下流側の第２配管５とを接続する管継手３が設けられている。ここで、上記第１配管４が、本発明の「他方の配管」に相当する。また、第２配管５が、本発明の「一方の配管」に相当する。 As shown in FIG. 1, the adjustment of the mixing ratio of hot water and water is performed by operating the temperature control handle 2A attached to the faucet main body 2. Further, although not shown, the water discharge stop water is switched by operating another handle attached to the faucet main body 2. As shown in FIGS. 2 to 3, inside the faucet main body 2, a piping path on the hot water side that sends hot water supplied from a hot water supply pipe (not shown) to a thermo cartridge in the faucet main body 2 A pipe joint 3 for connecting the first pipe 4 on the upstream side and the second pipe 5 on the downstream side is provided. Here, the first pipe 4 corresponds to the "other pipe" of the present invention. Further, the second pipe 5 corresponds to the "one pipe" of the present invention.

（管継手３の具体的な構成について）
上記管継手３は、図３に示すように、水栓本体２内で前後方向に延びる第１配管４と、第１配管４から右前側に外れた位置で左右方向に延びる第２配管５と、を位置ズレ吸収可能に接続することのできる可動構造を備える。具体的には、管継手３は、四角筒形状の本体金具１０と、本体金具１０の後端部に接続された段付き円管形状の第１接続管２０と、第１接続管２０の後端部に接続された円管形状の第２接続管３０と、本体金具１０の前端部を閉じる円板状のキャップ４０と、を備える。 (About the specific configuration of the pipe joint 3)
As shown in FIG. 3, the pipe joint 3 includes a first pipe 4 extending in the front-rear direction in the faucet main body 2 and a second pipe 5 extending in the left-right direction at a position deviated from the first pipe 4 to the right front side. , Is provided with a movable structure that can be connected so that it can absorb misalignment. Specifically, the pipe joint 3 includes a square cylinder-shaped main body fitting 10, a stepped circular pipe-shaped first connecting pipe 20 connected to the rear end of the main body fitting 10, and a rear of the first connecting pipe 20. A circular tube-shaped second connecting tube 30 connected to an end portion and a disk-shaped cap 40 for closing the front end portion of the main body fitting 10 are provided.

（本体金具１０について）
本体金具１０は、第１配管４の延びる前後方向に管軸方向Ｄが延びる四角筒形状とされ、第１配管４と同一軸線上の位置に並んで設けられる。上記本体金具１０は、管軸方向Ｄに貫通する丸孔形状の貫通孔１１を有する。また、本体金具１０は、その後端部に、上記貫通孔１１の孔径を段差状に狭める縮径部１２を有する。上記縮径部１２は、貫通孔１１の孔径を同心円状に狭める形状とされる。また、上記本体金具１０は、その右側の筒壁に、第２配管５の左端部が接続される接続口１４が貫通孔１１と連通して形成されている。 (About the main body metal fitting 10)
The main body metal fitting 10 has a square tubular shape in which the pipe axial direction D extends in the front-rear direction in which the first pipe 4 extends, and is provided side by side at a position on the same axis as the first pipe 4. The main body metal fitting 10 has a round hole-shaped through hole 11 penetrating in the pipe axis direction D. Further, the main body metal fitting 10 has a reduced diameter portion 12 at the rear end portion, which narrows the hole diameter of the through hole 11 in a stepped manner. The reduced diameter portion 12 has a shape that concentrically narrows the hole diameter of the through hole 11. Further, the main body metal fitting 10 is formed with a connection port 14 to which the left end portion of the second pipe 5 is connected communicating with the through hole 11 on the cylinder wall on the right side thereof.

（第１接続管２０について）
第１接続管２０は、前後方向に管軸方向Ｄが延びる段付き円管形状とされ、本体金具１０と同様、第１配管４と同一軸線上の位置に並んで設けられる。上記第１接続管２０は、管軸方向Ｄに貫通する丸孔形状の流通路２０Ａを有する。上記第１接続管２０は、その前端部に、径方向の外側へ鍔状に張り出すフランジ部２１を有する。そして、上記第１接続管２０は、上記フランジ部２１の形成された前端部から後端部に向けて、外形寸法が段階的に縮径される形を成して並ぶ嵌合管部２２、延出管部２３及び接続管部２４を有する。 (About the first connecting pipe 20)
The first connecting pipe 20 has a stepped circular pipe shape in which the pipe axial direction D extends in the front-rear direction, and is provided side by side at a position on the same axis as the first pipe 4 like the main body metal fitting 10. The first connecting pipe 20 has a round hole-shaped flow passage 20A penetrating in the pipe axial direction D. The first connecting pipe 20 has a flange portion 21 at its front end that projects outward in a radial direction in a flange shape. Then, the first connecting pipe 20 is arranged in a shape in which the external dimensions are gradually reduced from the front end portion to the rear end portion where the flange portion 21 is formed. It has an extension pipe portion 23 and a connection pipe portion 24.

上記第１接続管２０は、前出の本体金具１０に対し、前側の開口１１Ａから貫通孔１１内に挿通されることで、同貫通孔１１と流通路２０Ａとが互いに管軸方向Ｄに連通した状態にセットされる。詳しくは、上記第１接続管２０は、上記本体金具１０の貫通孔１１に対して、接続管部２４から順に貫通孔１１内へと挿通され、接続管部２４が貫通孔１１の後側の開口１１Ｂから突き出る位置まで挿通された状態にセットされる。ここで、上記貫通孔１１の前側の開口１１Ａが、本発明の「一方の開口」に相当する。また、後側の開口１１Ｂが、本発明の「他方の開口」に相当する。 The first connecting pipe 20 is inserted into the through hole 11 through the opening 11A on the front side of the main body metal fitting 10, so that the through hole 11 and the flow passage 20A communicate with each other in the pipe axial direction D. It is set in the state of. Specifically, the first connection pipe 20 is inserted into the through hole 11 in order from the connection pipe portion 24 through the through hole 11 of the main body metal fitting 10, and the connection pipe portion 24 is on the rear side of the through hole 11. It is set in a state of being inserted to a position protruding from the opening 11B. Here, the opening 11A on the front side of the through hole 11 corresponds to the "one opening" of the present invention. Further, the opening 11B on the rear side corresponds to the "other opening" of the present invention.

上記フランジ部２１は、上記本体金具１０の縮径部１２の内径よりも大きな外径を有し、上記貫通孔１１内に前側の開口１１Ａから挿通されることで、同貫通孔１１内にゆるやかに嵌合される構成とされる。上記構成により、第１接続管２０の貫通孔１１に対する前側からの挿通が、フランジ部２１が縮径部１２に当たって係止される位置（第１規制位置Ｐ１）にて規制されるようになっている。ここで、上記本体金具１０の縮径部１２が、本発明の「第１係止部」に相当する。また、同縮径部１２に突き当って係止される第１接続管２０のフランジ部２１が、本発明の「第１規制部」に相当する。 The flange portion 21 has an outer diameter larger than the inner diameter of the reduced diameter portion 12 of the main body metal fitting 10, and is gently inserted into the through hole 11 by being inserted into the through hole 11 from the front opening 11A. It is configured to be fitted to. With the above configuration, the insertion of the first connecting pipe 20 into the through hole 11 from the front side is restricted at the position where the flange portion 21 hits the reduced diameter portion 12 and is locked (first regulated position P1). There is. Here, the reduced diameter portion 12 of the main body metal fitting 10 corresponds to the “first locking portion” of the present invention. Further, the flange portion 21 of the first connecting pipe 20 that abuts and is locked to the reduced diameter portion 12 corresponds to the “first regulating portion” of the present invention.

嵌合管部２２は、上記貫通孔１１内に前側から挿通されることで、縮径部１２内にゆるやかに嵌合される外径を持つ構成とされる。上記嵌合管部２２は、第１接続管２０が上記貫通孔１１内に第１規制位置Ｐ１まで挿通された状態では、本体金具１０の後側の開口１１Ｂから僅かに後側に突出する管軸方向Ｄの長さを有する。 The fitting pipe portion 22 has an outer diameter that is loosely fitted in the reduced diameter portion 12 by being inserted into the through hole 11 from the front side. The fitting pipe portion 22 is a pipe that slightly protrudes rearward from the opening 11B on the rear side of the main body fitting 10 when the first connecting pipe 20 is inserted into the through hole 11 up to the first regulation position P1. It has a length in the axial direction D.

延出管部２３は、第１接続管２０が上記貫通孔１１内に第１規制位置Ｐ１まで挿通された状態では、本体金具１０の後側の開口１１Ｂから後側に突出する状態にセットされる。接続管部２４は、第１接続管２０の後端部を成し、第１接続管２０が貫通孔１１内に挿通された後、その外周部に第２接続管３０の前端部を成す接続管部３１が螺合締結されて接続される。ここで、上記第１接続管２０の接続管部２４が、本発明の「接続側端部」に相当する。 The extension pipe portion 23 is set so as to protrude rearward from the opening 11B on the rear side of the main body fitting 10 when the first connection pipe 20 is inserted into the through hole 11 up to the first regulation position P1. To. The connection pipe portion 24 forms the rear end portion of the first connection pipe 20, and after the first connection pipe 20 is inserted into the through hole 11, the connection pipe portion 24 forms the front end portion of the second connection pipe 30 on the outer peripheral portion thereof. The pipe portion 31 is screwed and fastened to be connected. Here, the connecting pipe portion 24 of the first connecting pipe 20 corresponds to the "connecting side end portion" of the present invention.

上記接続管部２４の外周面には、第２接続管３０の接続管部３１を螺合締結可能な雄ねじが形成されている。上記接続管部２４は、上記延出管部２３との間に形成された段差により、第２接続管３０の接続管部３１の螺合締結を延出管部２３との段差に突き当たる位置までに留められるようになっている。 On the outer peripheral surface of the connecting pipe portion 24, a male screw capable of screwing and fastening the connecting pipe portion 31 of the second connecting pipe 30 is formed. The connecting pipe portion 24 reaches a position where the screw fastening of the connecting pipe portion 31 of the second connecting pipe 30 abuts on the step with the extending pipe portion 23 due to the step formed between the connecting pipe portion 24 and the extending pipe portion 23. It is designed to be fastened to.

上記第１接続管２０の嵌合管部２２の後端付近の外周部には、縮径部１２の内周面との間の隙間を塞ぐＯリングＯ１が装着されている。上記ＯリングＯ１は、嵌合管部２２の外周部に形成されたリング状の刳り貫き部分に装着されている。また、接続管部２４の前端付近の外周部にも、第２接続管３０の接続管部３１の内周面との間の隙間を塞ぐＯリングＯ２が装着されている。上記ＯリングＯ２は、接続管部２４の外周部に形成されたリング状の刳り貫き部分に装着されている。 An O-ring O1 that closes a gap between the first connecting pipe 20 and the inner peripheral surface of the reduced diameter portion 12 is mounted on the outer peripheral portion near the rear end of the fitting pipe portion 22 of the first connecting pipe 20. The O-ring O1 is attached to a ring-shaped hollow portion formed on the outer peripheral portion of the fitting pipe portion 22. Further, an O-ring O2 that closes the gap between the second connecting pipe 30 and the inner peripheral surface of the connecting pipe 31 is also attached to the outer peripheral portion of the connecting pipe portion 24 near the front end. The O-ring O2 is attached to a ring-shaped hollow portion formed on the outer peripheral portion of the connecting pipe portion 24.

（第２接続管３０について）
第２接続管３０も、前後方向に管軸方向Ｄが延びる円管形状とされ、本体金具１０及び第１接続管２０と同様、第１配管４と同一軸線上の位置に並んで設けられる。上記第２接続管３０も、管軸方向Ｄに貫通する丸孔形状の流通路３０Ａを有する。上記第２接続管３０は、その前端部に、上記第１接続管２０の接続管部２４と螺合接続可能に内周面に雌ねじが形成された接続管部３１を有する。 (About the second connection pipe 30)
The second connecting pipe 30 also has a circular pipe shape in which the pipe axial direction D extends in the front-rear direction, and is provided side by side on the same axis as the first pipe 4 like the main body fitting 10 and the first connecting pipe 20. The second connecting pipe 30 also has a round hole-shaped flow passage 30A penetrating in the pipe axial direction D. The second connecting pipe 30 has a connecting pipe portion 31 having a female screw formed on its inner peripheral surface so as to be screw-connectable to the connecting pipe portion 24 of the first connecting pipe 20 at its front end.

また、第２接続管３０は、その管軸方向Ｄの中間部に、径方向の外側へ鍔状に張り出す座部３２を有する。また、第２接続管３０は、その後端部に、第１配管４の前端部内に挿通される円管形状の挿通管部３３を有する。上記第２接続管３０の接続管部３１、座部３２及び挿通管部３３は、互いに同一軸線上の位置に並んで形成されている。上記接続管部３１は、第１接続管２０の延出管部２３よりもひとまわり大きな外径を有する円管形状に形成されている。 Further, the second connecting pipe 30 has a seat portion 32 protruding outward in the radial direction in a brim shape in the middle portion in the pipe axial direction D. Further, the second connecting pipe 30 has a circular pipe-shaped insertion pipe portion 33 inserted into the front end portion of the first pipe 4 at the rear end portion. The connecting pipe portion 31, the seat portion 32, and the insertion pipe portion 33 of the second connecting pipe 30 are formed side by side at positions on the same axis. The connecting pipe portion 31 is formed in a circular pipe shape having an outer diameter slightly larger than that of the extending pipe portion 23 of the first connecting pipe 20.

上記第２接続管３０は、その接続管部３１を第１接続管２０の接続管部２４に接続することで、第１接続管２０と互いの流通路３０Ａ，２０Ａ同士が連通した状態に接続される。そして、上記接続の後、第２接続管３０は、次のようにその後端部が第１配管４の前端部と接続されている。 By connecting the connecting pipe portion 31 to the connecting pipe portion 24 of the first connecting pipe 20, the second connecting pipe 30 is connected to the first connecting pipe 20 in a state where the flow passages 30A and 20A communicate with each other. Will be done. Then, after the above connection, the rear end portion of the second connection pipe 30 is connected to the front end portion of the first pipe 4 as follows.

すなわち、先ず、第２接続管３０の後端側の挿通管部３３を第１配管４の前端部内に挿通する。そして、第２接続管３０の中間部に形成された座部３２を、第１配管４の前端部に同じく形成された座部４Ａと合わせる。そして、これら座部３２，４Ａ同士をクイックファスナ７Ａにより締結する。 That is, first, the insertion pipe portion 33 on the rear end side of the second connection pipe 30 is inserted into the front end portion of the first pipe 4. Then, the seat portion 32 formed in the intermediate portion of the second connecting pipe 30 is combined with the seat portion 4A also formed in the front end portion of the first pipe 4. Then, these seat portions 32 and 4A are fastened to each other by the quick fastener 7A.

以上により、第２接続管３０の後端部が第１配管４の前端部と接続されている。上記第２接続管３０は、その接続される第１配管４との間で施工位置のズレが生じたとしても、そのズレを本体金具１０に対する摺動により適切に吸収できるようになっている。 As described above, the rear end portion of the second connecting pipe 30 is connected to the front end portion of the first pipe 4. Even if the construction position of the second connecting pipe 30 is displaced from that of the connected first piping 4, the displacement can be appropriately absorbed by sliding with respect to the main body fitting 10.

具体的には、第２接続管３０は、上記第１接続管２０が第１規制位置Ｐ１にある状態では、その接続管部３１の前端と、同前端と管軸方向Ｄに対向する本体金具１０の後端面部１３と、の間に管軸方向Ｄの間隔Ａを空ける構成とされる。同間隔Ａにより、第２接続管３０は、上記第１規制位置Ｐ１と、その接続管部３１の前端が本体金具１０の後端面部１３と当たる第２規制位置Ｐ２（図４参照）と、の間で、本体金具１０に対する取付位置を管軸方向Ｄに調整できる構成とされる。ここで、本体金具１０の後端面部１３が、本発明の「第２係止部」に相当する。また、同後端面部１３に突き当って係止される第２接続管３０の接続管部３１が、本発明の「第２規制部」に相当する。 Specifically, the second connecting pipe 30 has a main body fitting that faces the front end of the connecting pipe portion 31 and the front end in the pipe axial direction D when the first connecting pipe 20 is in the first regulation position P1. A gap A in the pipe axis direction D is provided between the rear end surface portion 13 of the 10 and the rear end surface portion 13. Due to the same interval A, the second connecting pipe 30 has the first regulated position P1 and the second regulated position P2 (see FIG. 4) where the front end of the connecting pipe portion 31 abuts on the rear end surface portion 13 of the main body fitting 10. The mounting position with respect to the main body metal fitting 10 can be adjusted in the pipe axis direction D. Here, the rear end surface portion 13 of the main body metal fitting 10 corresponds to the “second locking portion” of the present invention. Further, the connecting pipe portion 31 of the second connecting pipe 30 that abuts and is locked to the rear end surface portion 13 corresponds to the "second regulating portion" of the present invention.

上記第１接続管２０は、本体金具１０に対して、管軸方向Ｄに摺動可能かつ管軸まわりの回転方向にも摺動可能な構成とされる。それにより、第２接続管３０は、その本体金具１０に対する取付位置を管軸まわりの回転方向にも調整できる構成とされる。上記第２接続管３０の挿通管部３３の外周部には、第１配管４の内周面との間の隙間を塞ぐＯリングＯ３が装着されている。上記ＯリングＯ３は、挿通管部３３の外周部に形成されたリング状の刳り貫き部分に装着されている。 The first connecting pipe 20 is configured to be slidable in the pipe axis direction D and slidable in the rotation direction around the pipe axis with respect to the main body metal fitting 10. As a result, the second connecting pipe 30 has a configuration in which the mounting position with respect to the main body metal fitting 10 can be adjusted in the rotation direction around the pipe axis. An O-ring O3 that closes a gap between the second connecting pipe 30 and the inner peripheral surface of the first pipe 4 is mounted on the outer peripheral portion of the insertion pipe portion 33 of the second connecting pipe 30. The O-ring O3 is attached to a ring-shaped hollow portion formed on the outer peripheral portion of the insertion tube portion 33.

（キャップ４０について）
キャップ４０は、図３に示すように、上記第１接続管２０が本体金具１０の貫通孔１１内に前側の開口１１Ａから挿通された後、同前側の開口１１Ａを閉じるように装着される。上記キャップ４０は、その外周面に雄ねじが形成され、上記本体金具１０の前側の開口１１Ａの内周面に形成された雌ねじに螺合締結されて装着されている。また、上記キャップ４０の外周部には、本体金具１０の前側の開口１１Ａの内周面との間の隙間を塞ぐＯリングＯ４が装着されている。上記ＯリングＯ４は、上記キャップ４０の外周部に形成されたリング状の刳り貫き部分に装着されている。 (About cap 40)
As shown in FIG. 3, the cap 40 is attached so as to close the opening 11A on the front side after the first connecting pipe 20 is inserted into the through hole 11 of the main body metal fitting 10 through the opening 11A on the front side. The cap 40 has a male screw formed on its outer peripheral surface and is screwed and fastened to a female screw formed on the inner peripheral surface of the opening 11A on the front side of the main body fitting 10. Further, an O-ring O4 that closes a gap between the cap 40 and the inner peripheral surface of the opening 11A on the front side of the main body fitting 10 is mounted on the outer peripheral portion of the cap 40. The O-ring O4 is attached to a ring-shaped hollow portion formed on the outer peripheral portion of the cap 40.

（第２配管５の接続について）
上記本体金具１０の右側の筒壁に形成された接続口１４には、左右方向に延びる円管形状の第２配管５が接続されている。上記第２配管５は、その右端部に、更にその下流側の配管となる第３配管６が接続されている。 (About the connection of the second pipe 5)
A circular pipe-shaped second pipe 5 extending in the left-right direction is connected to the connection port 14 formed on the right-side cylinder wall of the main body metal fitting 10. The second pipe 5 is connected to the right end of the second pipe 5 with a third pipe 6 which is a pipe on the downstream side thereof.

上記第２配管５は、その左端部に、本体金具１０の接続口１４に螺合接続可能な接続管部５Ａを有する。上記接続管部５Ａは、その外周面に雄ねじが形成され、本体金具１０の接続口１４の内周面に形成された雌ねじに螺合締結されて接続される。上記接続管部５Ａの右端付近の外周部にも、上記接続口１４の内周面との間の隙間を塞ぐＯリングＯ５が装着されている。上記ＯリングＯ５は、接続管部５Ａの外周部に形成されたリング状の刳り貫き部分に装着されている。 The second pipe 5 has a connection pipe portion 5A at its left end that can be screwed and connected to the connection port 14 of the main body fitting 10. A male screw is formed on the outer peripheral surface of the connecting pipe portion 5A, and the connecting pipe portion 5A is screwed and fastened to a female screw formed on the inner peripheral surface of the connection port 14 of the main body fitting 10 to be connected. An O-ring O5 that closes the gap between the connection port 14 and the inner peripheral surface is also attached to the outer peripheral portion of the connection pipe portion 5A near the right end. The O-ring O5 is attached to a ring-shaped hollow portion formed on the outer peripheral portion of the connecting pipe portion 5A.

上記第２配管５は、その管軸方向Ｄの中間部に、径方向の外側へ鍔状に張り出す座部５Ｂを有する。更に、第２配管５は、その右端部に、第３配管６の左端部内に挿通される円管形状の挿通管部５Ｃを有する。上記第２配管５の接続管部５Ａ、座部５Ｂ及び挿通管部５Ｃは、互いに同一軸線上の位置に並んで形成されている。 The second pipe 5 has a seat portion 5B protruding outward in the radial direction in a brim shape in the middle portion in the pipe axial direction D. Further, the second pipe 5 has a circular pipe-shaped insertion pipe portion 5C inserted into the left end portion of the third pipe 6 at the right end portion thereof. The connecting pipe portion 5A, the seat portion 5B, and the insertion pipe portion 5C of the second pipe 5 are formed side by side at positions on the same axis.

上記第２配管５は、その接続管部５Ａを本体金具１０の接続口１４に接続した後、次のようにその右端部が第３配管６の左端部と接続されている。先ず、第２配管５の右端側の挿通管部５Ｃを第３配管６の左端部内に挿通する。そして、第２配管５の中間部に形成された座部５Ｂを、第３配管６の左端部に同じく形成された座部６Ａと合わせる。そして、これら座部５Ｂ，６Ａ同士をクイックファスナ７Ｂにより締結する。 After connecting the connection pipe portion 5A to the connection port 14 of the main body fitting 10, the right end portion of the second pipe 5 is connected to the left end portion of the third pipe 6 as follows. First, the insertion pipe portion 5C on the right end side of the second pipe 5 is inserted into the left end portion of the third pipe 6. Then, the seat portion 5B formed in the intermediate portion of the second pipe 5 is combined with the seat portion 6A also formed in the left end portion of the third pipe 6. Then, these seat portions 5B and 6A are fastened to each other by the quick fastener 7B.

以上により、第２配管５の右端部が第３配管６の左端部と接続されている。上記第２配管５の挿通管部５Ｃの外周部には、第３配管６の内周面との間の隙間を塞ぐＯリングＯ６が装着されている。上記ＯリングＯ６は、挿通管部５Ｃの外周部に形成されたリング状の刳り貫き部分に装着されている。 As described above, the right end portion of the second pipe 5 is connected to the left end portion of the third pipe 6. An O-ring O6 that closes the gap between the insertion pipe portion 5C of the second pipe 5 and the inner peripheral surface of the third pipe 6 is mounted on the outer peripheral portion of the insertion pipe portion 5C. The O-ring O6 is attached to a ring-shaped hollow portion formed on the outer peripheral portion of the insertion tube portion 5C.

（まとめ）
以上をまとめると、第１の実施形態に係る管継手３は次のような構成となっている。すなわち、配管（４，５）同士を接続する管継手（３）であって、管軸方向（Ｄ）に貫通する貫通孔（１１）及び貫通孔（１１）と連通する一方の配管（５）との接続口（１４）を備えた筒状の本体金具（１０）と、本体金具（１０）に貫通孔（１１）の一方の開口（１１Ａ）から挿通されて管軸方向（Ｄ）に摺動可能なように接続される第１接続管（２０）と、第１接続管（２０）の挿通された先の接続側端部（２４）と接続され、他方の配管（４）と接続される第２接続管（３０）と、を有する。 (Summary)
Summarizing the above, the pipe joint 3 according to the first embodiment has the following configuration. That is, a pipe joint (3) that connects pipes (4,5) to each other, and one pipe (5) that communicates with a through hole (11) penetrating in the pipe axial direction (D) and a through hole (11). A tubular main body metal fitting (10) having a connection port (14) with and is inserted into the main body metal fitting (10) through one opening (11A) of a through hole (11) and slides in the pipe axis direction (D). The first connecting pipe (20) connected so as to be movable is connected to the connecting side end portion (24) to which the first connecting pipe (20) is inserted, and is connected to the other pipe (4). It has a second connecting pipe (30).

第１接続管（２０）が、貫通孔（１１）と管軸方向（Ｄ）に連通する流通路（２０Ａ）と、貫通孔（１１）の内周部に突出して形成された第１係止部（１２）との突き当たりにより第１接続管（２０）の貫通孔（１１）の他方の開口（１１Ｂ）に向けた摺動を第１規制位置（Ｐ１）に規制する第１規制部（２１）と、を有する。第２接続管（３０）が、第１規制位置（Ｐ１）では本体金具（１０）に形成された第２係止部（１３）から管軸方向（Ｄ）に離間し、第２係止部（１３）との突き当たりにより第１接続管（２０）の貫通孔（１１）の一方の開口（１１Ａ）に向けた摺動を第２規制位置（Ｐ２）に規制する第２規制部（３１）を有する。 A first locking formed by the first connecting pipe (20) protruding from the through hole (11) and the flow passage (20A) communicating with the pipe axial direction (D) and the inner peripheral portion of the through hole (11). The first regulating portion (21) that restricts the sliding of the first connecting pipe (20) toward the other opening (11B) of the through hole (11) at the first regulating position (P1) by the abutting with the portion (12). ) And. At the first regulation position (P1), the second connecting pipe (30) is separated from the second locking portion (13) formed on the main body metal fitting (10) in the pipe axial direction (D), and the second locking portion is separated. The second regulation part (31) that regulates the sliding of the through hole (11) of the first connection pipe (20) toward one opening (11A) at the second regulation position (P2) by the abutting with (13). Has.

上記構成によれば、本体金具（１０）と第２接続管（３０）とが、第１接続管（２０）を介して、互いの成す管軸方向（Ｄ）の長さを摺動により調節できる状態に接続される。したがって、これらを曲げたり捩ったりすることなく、配管（４，５）同士を適切に位置ズレ吸収可能に接続することができる。 According to the above configuration, the length of the main body metal fitting (10) and the second connecting pipe (30) are adjusted by sliding through the first connecting pipe (20) in the pipe axial direction (D) formed by each other. Connected to a ready state. Therefore, the pipes (4, 5) can be appropriately connected to each other so as to be able to absorb the misalignment without bending or twisting them.

また、第１接続管（２０）が、本体金具（１０）に対して、管軸まわりの回転方向にも摺動可能なように接続される。上記構成によれば、本体金具（１０）と第２接続管（３０）とが、第１接続管（２０）を介して、互いに相対回転可能な状態に接続される。したがって、これらを曲げたり捩ったりすることなく、配管（４，５）同士をより適切に位置ズレ吸収可能に接続することができる。 Further, the first connecting pipe (20) is connected to the main body metal fitting (10) so as to be slidable in the rotation direction around the pipe axis. According to the above configuration, the main body fitting (10) and the second connecting pipe (30) are connected to each other via the first connecting pipe (20) so as to be relatively rotatable with each other. Therefore, the pipes (4, 5) can be more appropriately connected to each other so as to be able to absorb the misalignment without bending or twisting them.

また、管継手（３）が、更に、本体金具（１０）の貫通孔（１１）の一方の開口（１１Ａ）に蓋をするキャップ（４０）を有する。本体金具（１０）の筒壁に、接続口（１４）が貫通孔（１１）と連通して管軸方向（Ｄ）とは交差する方向に開口する形に形成される。上記構成によれば、管継手（３）により、互いに角度を成す形に設けられる配管（４，５）同士を適切に位置ズレ吸収可能に接続することができる。 Further, the pipe joint (3) further has a cap (40) for covering one opening (11A) of the through hole (11) of the main body fitting (10). The connection port (14) is formed in the tubular wall of the main body metal fitting (10) so as to communicate with the through hole (11) and open in a direction intersecting the pipe axis direction (D). According to the above configuration, the pipe joints (3) can appropriately connect the pipes (4, 5) provided at an angle to each other so as to be able to absorb the misalignment.

また、本体金具（１０）の第１係止部（１２）が、貫通孔（１１）の経路途中に形成された縮径部（１２）とされる。そして、この縮径部（１２）と突き当たる第１接続管（２０）に形成された第１規制部（２１）が、第１接続管（２０）の貫通孔（１１）内に挿通される基端部から鍔状に張り出すフランジ部（２１）とされる。上記構成によれば、第１接続管（２０）の第１規制部（２１）を、本体金具（１０）の第１係止部（１２）に対して全周に亘って安定性良く突き当てることができる。 Further, the first locking portion (12) of the main body metal fitting (10) is a reduced diameter portion (12) formed in the middle of the path of the through hole (11). Then, the first regulating portion (21) formed in the first connecting pipe (20) that abuts against the reduced diameter portion (12) is inserted into the through hole (11) of the first connecting pipe (20). It is a flange portion (21) that projects from the end portion in a flange shape. According to the above configuration, the first regulating portion (21) of the first connecting pipe (20) is stably abutted against the first locking portion (12) of the main body metal fitting (10) over the entire circumference. be able to.

また、管継手（３）が、混合水栓（１）の水栓本体（２）内に設けられる。上記構成によれば、混合水栓（１）の水栓本体（２）内のような狭いスペース内であっても、管継手（３）により、各配管（４，５）を曲げたり捩ったりすることなく、配管（４，５）同士を適切に位置ズレ吸収可能に接続することができる。 Further, the pipe joint (3) is provided in the faucet main body (2) of the mixing faucet (1). According to the above configuration, each pipe (4,5) is bent or twisted by the pipe joint (3) even in a narrow space such as inside the faucet body (2) of the mixing faucet (1). It is possible to connect the pipes (4, 5) to each other so as to be able to absorb the misalignment appropriately without any trouble.

《その他の実施形態について》
以上、本発明の実施形態を１つの実施形態を用いて説明したが、本発明は上記実施形態のほか、以下に示す様々な形態で実施することができるものである。 << About other embodiments >>
Although the embodiments of the present invention have been described above using one embodiment, the present invention can be implemented in various embodiments shown below in addition to the above embodiments.

１．本発明の管継手は、混合水栓の水栓本体内の他、各種水栓金具への給湯水を行うための配管経路等、様々な配管同士の接続箇所に適用することができるものである。また、管継手は、角管や異形管等の円管以外の管形状を持つ配管同士の接続にも適用することが可能である。 1. 1. The pipe joint of the present invention can be applied not only to the inside of the faucet body of the mixing faucet, but also to various connection points between pipes such as a piping route for supplying hot water to various faucet fittings. .. Further, the pipe joint can be applied to the connection between pipes having a pipe shape other than a circular pipe such as a square pipe or a deformed pipe.

また、管継手は、管軸方向に並ぶ配管同士を接続する構成であっても良い。具体的には、本体金具の貫通孔の一方の開口を一方の配管との接続口とすることで、上記のような構成をとることができる。また、管継手は、管軸方向とは交差する方向に並ぶ配管同士を接続する構成であっても良い。具体的には、本体金具の筒壁に一方の配管との接続口を形成し、第２接続管を他方の配管と接続可能なＬ字状の管形状とすることで、上記のような構成をとることができる。 Further, the pipe joint may be configured to connect pipes arranged in the pipe axis direction. Specifically, the above configuration can be obtained by using one opening of the through hole of the main body metal fitting as a connection port with one pipe. Further, the pipe joint may be configured to connect pipes arranged in a direction intersecting the pipe axis direction. Specifically, by forming a connection port with one pipe on the cylinder wall of the main body metal fitting and forming the second connection pipe into an L-shaped pipe shape that can be connected to the other pipe, the above configuration is performed. Can be taken.

２．本体金具に形成される一方の配管との接続口は、本体金具に複数設定されていても良い。接続口を複数設定することで、管継手を、複数の配管同士を繋ぐ多方管継手として構成することができる。また、第２接続管に複数の配管を繋いでも良い。 2. 2. A plurality of connection ports with one of the pipes formed in the main body fitting may be set in the main body fitting. By setting a plurality of connection ports, the pipe joint can be configured as a multi-sided pipe joint that connects a plurality of pipes. Further, a plurality of pipes may be connected to the second connecting pipe.

３．本体金具及び第１接続管は、各々が管軸方向には摺動可能であるが、管軸まわりの回転方向は一体的となるように嵌合される角管形状や異形管形状の組み合わせから成るものであっても良い。なお、そのような構成において、第２接続管を第１接続管に対して管軸まわりの回転方向に摺動可能なように組み付けることにより、同部分において第２接続管を本体金具に対して管軸まわりの回転方向に摺動可能な構成とすることができる。 3. 3. The main body metal fitting and the first connecting pipe can each slide in the pipe axis direction, but from the combination of the square tube shape and the deformed tube shape that are fitted so that the rotation direction around the tube axis is integrated. It may consist of. In such a configuration, by assembling the second connecting pipe so as to be slidable with respect to the first connecting pipe in the rotational direction around the pipe axis, the second connecting pipe is attached to the main body metal fitting at the same portion. It can be configured to be slidable in the direction of rotation around the pipe axis.

４．本体金具の貫通孔内に突出して形成される第１係止部、及び同第１係止部に突き当たって摺動規制される第１接続管の第１規制部は、必ずしも管軸まわりの全周囲に亘って当接する構成でなくても良く、管軸まわりの一部領域において突き当たる構成であっても良い。また、これらの当接は、面当たりの他、点当たりや線当たりの当接であっても良い。また、第１係止部は、貫通孔の縮径部から成るものの他、部分的に突出形成される突起から成るものであっても良い。 4. The first locking portion formed by protruding into the through hole of the main body metal fitting and the first regulating portion of the first connecting pipe that abuts against the first locking portion and is restricted from sliding are not necessarily all around the pipe axis. It does not have to be configured to abut over the periphery, and may be configured to abut in a part of the area around the pipe axis. Further, these abutments may be a point contact or a line contact as well as a surface contact. Further, the first locking portion may be one made of a reduced diameter portion of the through hole or one made of a protrusion formed so as to partially project.

第２接続管の第２規制部、及び同第２規制部を突き当てさせて摺動規制する本体金具の第２係止部も同様に、必ずしも管軸まわりの全周囲に亘って当接する構成でなくても良く、管軸まわりの一部領域において突き当たる構成であっても良い。また、これらの当接は、面当たりの他、点当たりや線当たりの当接であっても良い。また、第２係止部は、本体金具の後端面部から成るものの他、本体金具から部分的に突出形成される突起から成るものであっても良い。 Similarly, the second regulating portion of the second connecting pipe and the second locking portion of the main body metal fitting that abuts the second regulating portion to regulate sliding also necessarily come into contact with the entire circumference around the pipe axis. It does not have to be, and it may be configured to abut in a part of the area around the pipe axis. Further, these abutments may be a point contact or a line contact as well as a surface contact. Further, the second locking portion may be formed of a rear end surface portion of the main body fitting or a protrusion formed partially protruding from the main body fitting.

１混合水栓
２水栓本体
２Ａ温調ハンドル
３管継手
４第１配管（他方の配管）
４Ａ座部
５第２配管（一方の配管）
５Ａ接続管部
５Ｂ座部
５Ｃ挿通管部
６第３配管
６Ａ座部
７Ａ，７Ｂクイックファスナ
１０本体金具
１１貫通孔
１１Ａ前側の開口（一方の開口）
１１Ｂ後側の開口（他方の開口）
１２縮径部（第１係止部）
１３後端面部（第２係止部）
１４接続口
２０第１接続管
２０Ａ流通路
２１フランジ部（第１規制部）
２２嵌合管部
２３延出管部
２４接続管部（接続側端部）
３０第２接続管
３０Ａ流通路
３１接続管部（第２規制部）
３２座部
３３挿通管部
４０キャップ
Ｏ１〜Ｏ６Ｏリング
Ｄ管軸方向
Ｐ１第１規制位置
Ｐ２第２規制位置
Ａ間隔 1 Mixing faucet 2 Faucet body 2A Temperature control handle 3 Pipe fitting 4 First pipe (the other pipe)
4A Seat 5 Second pipe (one pipe)
5A Connection pipe part 5B Seat part 5C Insertion pipe part 6 Third pipe 6A Seat part 7A, 7B Quick fastener 10 Main body metal fittings 11 Through hole 11A Front opening (one opening)
11B Rear opening (the other opening)
12 Reduced diameter part (first locking part)
13 Rear end face (second locking part)
14 Connection port 20 1st connection pipe 20A Flow passage 21 Flange part (1st regulation part)
22 Fitting pipe part 23 Extension pipe part 24 Connection pipe part (connection side end)
30 2nd connection pipe 30A Flow passage 31 Connection pipe part (2nd regulation part)
32 Seat 33 Insertion pipe 40 Cap O1 to O6 O-ring D Pipe axial direction P1 1st regulation position P2 2nd regulation position A Interval

Claims

A pipe fitting that connects pipes to each other
A tubular main body fitting having a through hole penetrating in the pipe axis direction and a connection port with the pipe that communicates with the through hole.
A first connecting pipe that is inserted through one of the through holes and connected to the main body metal fitting so as to be slidable in the pipe axial direction.
It has a second connecting pipe that is connected to the connecting end of the first connecting pipe to which the first connecting pipe is inserted and is connected to the other pipe.
The first connecting pipe is said to have the first connecting pipe due to abutting between a flow passage communicating with the through hole in the pipe axial direction and a first locking portion formed so as to project from the inner peripheral portion of the through hole. It has a first regulating section that regulates sliding of the through hole toward the other opening to the first regulating position.
At the first regulation position, the second connecting pipe is separated from the second locking portion formed on the main body fitting in the pipe axial direction, and the contact with the second locking portion causes the first connecting pipe to be said. A pipe joint having a second regulation portion that regulates sliding toward one opening of the through hole to a second regulation position.

The pipe fitting according to claim 1.
A pipe joint in which the first connecting pipe is connected to the main body metal fitting so as to be slidable in the rotation direction around the pipe axis.

The pipe fitting according to claim 1 or 2.
Further, it has a cap that covers one opening of the through hole of the main body fitting.
A pipe joint formed in a tubular wall of the main body metal fitting so that the connection port communicates with the through hole and opens in a direction intersecting the pipe axis direction.

The pipe fitting according to any one of claims 1 to 3.
The first locking portion of the main body fitting is a reduced diameter portion formed in the middle of the path of the through hole, and the first regulating portion formed in the first connecting pipe that abuts the reduced diameter portion is formed. A pipe joint having a flange portion protruding from a base end portion inserted into the through hole of the first connecting pipe in a flange shape.

The pipe fitting according to any one of claims 1 to 4.
The pipe fitting is provided in the faucet body of the mixing faucet.