JP2004068514A

JP2004068514A - Water faucet

Info

Publication number: JP2004068514A
Application number: JP2002232472A
Authority: JP
Inventors: Yasushi Yamada; 山田　康司
Original assignee: Kitamura Alloy Manufacturing Co Ltd
Current assignee: Kitamura Alloy Manufacturing Co Ltd
Priority date: 2002-08-09
Filing date: 2002-08-09
Publication date: 2004-03-04

Abstract

<P>PROBLEM TO BE SOLVED: To improve workability by easy and stable work for connecting a water faucet with a synthetic resin pipe. <P>SOLUTION: A body 1 mounted on a ceiling plate A is provide with a mixing chamber 5 where water and hot water are mixed, and the water faucet A is equipped with an injecting pipe 4 for injecting hot water form the mixing chamber 5. The mixing chamber 5 has at its lower part a fitting hole 6 releasably joined with a pipe joint 8, and the joint 8 is a push-locking one connected with a water pipe 12 of a synthetic resin only by inserting the water pipe 12 thereto. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、例えばヘッダー配管に接続される水栓金具に関するものである。
【０００２】
【従来の技術】
一般に集合住宅，戸建住宅等において、洗面台，流し台，浴室，トイレ，洗濯機等の水栓金具へ給水，給湯配管の施工を行なう場合、建物の躯体工事の際に水，湯の各ヘッダーと水栓金具との間で蛇腹状の鞘管をタコ足状に配設しておき、設備工事の際にこの鞘管内に水，又は湯用の合成樹脂製からなる通水管を挿通させ、ヘッダーと水栓金具とを接続する鞘管工法が行なわれている。
【０００３】
この鞘管工法により鞘管に通水管を挿通し、該通水管を床板の上部に立ち上げて床板の上部に配置された継手部材に接続し、該継手部材から水栓金具へ水又は湯を供給する構造として公知のものに特開平１１−２６４１５９号公報の図１及び図３（本願図面の図４及び図５）のものがある。この図４及び図５について簡単に説明すると、建物内で給水源からの水を供給する水用ヘッダー３０及び給湯器３１からの湯を供給する湯用ヘッダー３２と浴室，流し台又は洗面台の天板３３に取り付けた水栓金具３４の配管接続は、予め蛇腹状の鞘管３７を壁裏、床下に配設し、後からポリエチレン管等の合成樹脂で形成された通水管３８を鞘管３７内に挿通し、水栓金具３４は水，湯用の連結管３５を下方に延設し、該連結管３５と通水管３８とは、ナット３６を連結管３５に螺着することで接続していた。
【０００４】
上記のものにあっては、鞘管内を挿通した通水管を水栓金具に接続するのに、ナットを何度も回転させて螺着することで接続する必要があり、天板の下部の狭い箇所での作業では、ナットの締め付け不足や無理な姿勢での接続による施工ミスが発生しやすく、施工ミスにより漏水の発生する可能性が高くなる等の問題があった。
【０００５】
【発明が解決しようとする課題】
本発明が解決しようとする課題は、水栓金具において、通水管との接続作業を容易にかつ確実に行なえるようにして、施工性の向上を図ることである。
【０００６】
【課題を解決するための手段】
本発明は請求項１では、天板に固定される本体には水と湯が混合される混合室が形成され、該混合室の湯水が吐水される吐水管が装着された水栓金具において、前記混合室の下部に嵌合孔を開口し、該嵌合孔に管継手を着脱自在に結合し、該管継手は合成樹脂製の通水管を差し込むだけで接続することのできるプッシュロック式としたものである。
【０００７】
請求項２では、前記管継手は、外周に雄ねじ部を形成し該雄ねじ部の内側に通水管を外嵌する案内部を設けた継手本体と、前記雄ねじ部に螺着するナットと、該ナットと案内部の間に介在させるリングとを備え、合成樹脂製の通水管を差し込むだけで接続状態とすることができるものである。
【０００８】
請求項３では、前記本体はハンドルの操作で該ハンドルと連繋した弁体が弁座に接離し、管継手の通路から混合室への流路を開閉する弁機構を備え、前記弁座を管継手に形成したものである。
【０００９】
【発明の実施の形態】
以下、本発明の実施の形態を図に基づいて詳細に説明する。
本発明は図１及び図２に示すように、洗面台や流し台の天板Ｂに固定される水栓金具Ａは、本体１の上部両端に水側ハンドル２と湯側ハンドル３とを備え、中央には両ハンドル２，３の操作によって湯水が吐水される吐水管４が回転自在に装着された２ハンドル式のものであり、内部には横長の混合室５が形成され、該混合室５の下部両端には水側の第１嵌合孔６及び湯側の第１嵌合孔（図示省略）がそれぞれ開口され、上部両端には第１嵌合孔６と上下に向かい合わせて水側の第２嵌合孔７及び湯側の第２嵌合孔（図示省略）がそれぞれ開口されている。そして、第１嵌合孔６の内周面には第１雌ねじ部６ａが形成され、第２嵌合孔７の内周面には第２雌ねじ部７ａが形成されている。
【００１０】
前記第１嵌合孔６（湯側は水側と同一であるため図示及び説明を省略）の第１雌ねじ部６ａには、後述する通水管１２を接続するための管継手８が着脱自在に結合される。該管継手８は通水管１２を差し込むだけで接続することのできるプッシュロック式で、通水管１２の先端が結合される略円筒状の継手本体９と、該継手本体９に螺着するナット１０と、該ナット１０と継手本体９との間に配設されるリング１１とを備えている。
【００１１】
前記継手本体９は略円筒状で、一端の外周面に前記第１嵌合孔６の第１雌ねじ部６ａに螺着する第１雄ねじ部９ａが形成され、流体が通過する通路９ｂの一端には、本体１の通水路５と向かい合わせて止水用の弁座９ｃが環状に形成され、略中間部の外周面には第２雄ねじ部９ｄを形成し、該第２雄ねじ部９ｄの内周側には所定の間隔をおいて前記通水管１２より小径に形成した円筒状の案内部９ｅが形成されている。該案内部９ｅの先端は前記第２雄ねじ部９ｄより突出し、外周面先端側には一対の溝孔９ｆ，９ｆが軸方向に併設して環状に形成され、該溝孔９ｆ，９ｆには同一形状のシール部材９ｇ，９ｇがそれぞれ装着されている。
【００１２】
前記止水用の弁座は、通常の水栓金具では本体に一体に形成されているが、本体に結合される管継手に形成すれば、経年使用により弁座が磨耗した場合に本体はそのまま使用して管継手のみを交換すればよく、最小限の費用で水栓金具の修理を行なうことができる。また、管継手はステンレス，青銅等の耐食性，耐磨耗性の高い材料を使用し、本体は真鍮，黄銅鋳物，合成樹脂等の安価な材料を使用し、コストの低減を図ることができる。
【００１３】
前記シール部材９ｇ，９ｇは通水管１２の内周面に付着した異物の捕捉と水漏れを防止するためのもので、パッキン，Ｏリング等の弾性材からなり、通水管１２の先端が案内部９ｅに外嵌されるとシール部材９ｇ，９ｇは変形し、通水管１２の内周面に密着してシールが確実となるようにしている。
【００１４】
前記ナット１０は、内周面に前記継手本体９の第２雄ねじ部９ｄに螺着する雌ねじ部１０ａが形成され、該雌ねじ部１０ａの奥には、通水管１２が挿入される開口部１０ｂに向かうにつれて除々に小径にしたテーパー面１０ｃが形成されている。
【００１５】
前記リング１１は、ナット１０のテーパー面１０ｃの内側に挿入されるものであり、軸方向の一部にスリットを形成することで縮径及び拡径が可能で、内周面には通水管１２を容易に挿入するためのテーパー面１１ａが形成されている。
【００１６】
従って、リング１１は通水管１２の挿入時に拡径するので、管継手８に容易に挿入させることができるが、通水管１２を継手本体９から引き出そうとする力が加わるとリング１１は縮径し、継手本体９から引き出せないようにしている。
【００１７】
弁機構１３は止水機能と流量調節機能とを備えたものであり、前記管継手８の弁座９ｃに接離する弁体１５を備えた弁棒１４と、該弁棒１４を進退自在に挿通したガイド１６とからなり、該ガイド１６は前記第２嵌合孔７の第２雌ねじ部７ａに螺着し、弁棒１４の他端に結合した水側ハンドル２を回転方向に操作すれば、弁棒１４と共に弁体１５がガイド１６と弁座９ｂとの間を移動する。
【００１８】
水用又は湯用の通水管１２は容易に屈曲できる合成樹脂製のポリエチレン管，架橋ポリプロピレン管等で形成され、図３に示すように壁裏、床下では予め配設された蛇腹状の鞘管１７で覆われて外部から保護されており、上流側を水又は湯のヘッダー１８に接続し、鞘管１７から引き出され床上に立ち上がり、図２に示すように先端を前記管継手８の案内部９ｅに外嵌することで、通水管１２を管継手８に接続している。
【００１９】
固定具１９は天板Ｂの下部から各管継手８，８と通水管１２，１２の接続部分を覆うカバー２０，２０を備えた形状で、両側のカバー２０の間に一対の貫通孔２１，２１を穿設し、別に設けたボルト２２を天板Ｂの下部から貫通孔２１に挿通し、天板Ｂの取付孔Ｃに挿通して本体１の底面に設けたねじ孔１ａに螺着することで、水栓金具Ａと固定具１９で天板Ｂを挟みつけ、水栓金具Ａを天板Ｂに固定するものである。
【００２０】
今、水栓金具Ａの管継手８に通水管１２を接続する場合について説明すると、まず本体１に結合した管継手８を、浴室，流し台又は洗面台の天板Ｂに穿設した取付孔Ｃに上から挿通する。そして各ボルト２２を固定具１９の貫通孔２１に挿入して螺着すれば、水栓金具Ａは天板Ｂに固定される。次に天板Ｂの下部で、鞘管１７から引き出された水，湯の各通水管１２に固定具１９の各カバー２０を挿通させた後に、通水管１２を前記管継手８に差し込み接続する。
【００２１】
このように本発明では、通水管を管継手に差し込むだけで接続することのできるプッシュロック式で水栓金具に接続することができ、従来のようにナットを螺着して接続する必要がない。従って、誰にでも容易に接続することができ、施工ミスによる漏水を防止することができる。
【００２２】
【発明の効果】
本発明によると、通水管は水栓金具に結合した管継手に差し込むだけで接続することのできるプッシュロック式で容易に接続することができ、施工性を大幅に向上させることができる。
【００２３】
また、弁座を管継手に形成したので、弁座が磨耗した場合は管継手のみを交換すればよく、本体はそのまま利用することができ経済的である。また本体を安価な材料である真鍮，黄銅鋳物や合成樹脂で形成することができ、コストの低減を図ることができる。
【図面の簡単な説明】
【図１】本発明による水栓金具の正面図である。
【図２】図１の要部の拡大縦断面図である。
【図３】ヘッダー配管の全体説明図である。
【図４】従来技術の説明図である。
【図５】従来のヘッダー配管の全体説明図である。
【符号の説明】
１　　　　　　本体
２　　　　　　水側ハンドル
３　　　　　　湯側ハンドル
４　　　　　　吐水管
５　　　　　　混合室
６　　　　　　第１嵌合孔
８　　　　　　管継手
９　　　　　　継手本体
９ａ　　　　　第１雄ねじ部
９ｂ　　　　　通路
９ｃ　　　　　弁座
９ｄ　　　　　第２雄ねじ部
９ｅ　　　　　案内部
１０　　　　　ナット
１１　　　　　リング
１２　　　　　通水管
１３　　　　　弁機構
１５　　　　　弁体
Ａ　　　　　　水栓金具
Ｂ　　　　　　天板[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a faucet fitting connected to, for example, a header pipe.
[0002]
[Prior art]
Generally, in multi-family houses and detached houses, when performing water supply and hot water supply piping to faucet fittings such as wash basins, sinks, bathrooms, toilets, washing machines, etc. A bellows-shaped sheath tube is arranged in an octopus-like shape between the water faucet and the faucet, and a water tube made of synthetic resin for water or hot water is inserted into the sheath tube at the time of facility construction, A sheath pipe method of connecting a header and a faucet fitting has been performed.
[0003]
A water pipe is inserted into the sheath pipe by the sheath pipe method, the water pipe is set up on the upper part of the floor plate and connected to a joint member arranged on the upper part of the floor plate, and water or hot water is supplied from the joint member to the faucet fitting. As a known supply structure, there is one shown in FIGS. 1 and 3 (FIGS. 4 and 5 of the present application) of Japanese Patent Application Laid-Open No. 11-264159. 4 and 5 will be briefly described. In the building, a water header 30 for supplying water from a water supply source and a hot water header 32 for supplying hot water from a water heater 31 and a ceiling of a bathroom, a sink or a sink are described. The pipe connection of the faucet fitting 34 attached to the plate 33 is performed by disposing a bellows-like sheath tube 37 in advance behind the wall and under the floor, and then connecting a water tube 38 formed of a synthetic resin such as a polyethylene tube to the sheath tube 37. The faucet fitting 34 extends a connecting pipe 35 for water and hot water downward, and the connecting pipe 35 and the water pipe 38 are connected by screwing a nut 36 to the connecting pipe 35. I was
[0004]
In the case of the above, in order to connect the water pipe inserted through the inside of the sheath pipe to the faucet, it is necessary to connect by turning the nut many times and screwing it, and the narrow bottom of the top plate In the work at a location, there is a problem that a construction error is apt to occur due to insufficient tightening of the nut or connection in an unreasonable posture, and a possibility of water leakage due to the construction mistake increases.
[0005]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to improve the workability by facilitating the connection work with a water pipe in a faucet fitting easily and reliably.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a water faucet provided with a water discharge pipe through which a mixing chamber for mixing water and hot water is formed in a main body fixed to the top plate, and a water pipe for discharging hot water from the mixing chamber. A fitting hole is opened at the lower part of the mixing chamber, a pipe joint is detachably connected to the fitting hole, and the fitting is a push lock type that can be connected simply by inserting a synthetic resin water pipe. It was done.
[0007]
According to claim 2, the pipe joint has a male screw part formed on an outer periphery thereof, a joint body provided with a guide part for externally fitting a water pipe inside the male screw part, a nut screwed on the male screw part, and the nut And a ring interposed between the guide section and the guide section, and can be brought into a connected state only by inserting a synthetic resin water pipe.
[0008]
According to the third aspect, the main body includes a valve mechanism that opens and closes a flow path from a passage of a pipe joint to a mixing chamber by operating a handle so that a valve body connected to the handle comes into contact with and separates from a valve seat. It is formed on the joint.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 2, a water faucet A fixed to a top plate B of a wash basin or a sink has a water side handle 2 and a hot water side handle 3 at both upper ends of a main body 1. At the center is a two-handle type in which a water discharge pipe 4 through which hot and cold water is discharged by operation of both handles 2 and 3 is rotatably mounted, and a horizontally long mixing chamber 5 is formed therein. A first fitting hole 6 on the water side and a first fitting hole (not shown) on the hot water side are respectively opened at both lower ends of the bottom, and water ends facing the first fitting hole 6 vertically at both upper ends. The second fitting hole 7 and the second fitting hole (not shown) on the hot water side are respectively opened. A first female screw portion 6 a is formed on the inner peripheral surface of the first fitting hole 6, and a second female screw portion 7 a is formed on the inner peripheral surface of the second fitting hole 7.
[0010]
The first female thread 6a of the first fitting hole 6 (the hot water side is the same as the water side, so illustration and description thereof is omitted) is provided with a pipe joint 8 for connecting a water pipe 12 described later in a detachable manner. Be combined. The pipe joint 8 is a push-lock type that can be connected simply by inserting the water pipe 12, and has a substantially cylindrical joint body 9 to which the tip of the water pipe 12 is connected, and a nut 10 that is screwed to the joint body 9. And a ring 11 disposed between the nut 10 and the joint body 9.
[0011]
The joint body 9 has a substantially cylindrical shape, and a first male screw portion 9a screwed to the first female screw portion 6a of the first fitting hole 6 is formed on an outer peripheral surface at one end, and is formed at one end of a passage 9b through which a fluid passes. A water-stop valve seat 9c is formed in an annular shape in opposition to the water passage 5 of the main body 1, and a second male screw portion 9d is formed on the outer peripheral surface at a substantially intermediate portion. A cylindrical guide portion 9e having a smaller diameter than the water pipe 12 is formed at a predetermined interval on the circumferential side. The distal end of the guide portion 9e protrudes from the second male screw portion 9d, and a pair of slots 9f, 9f is formed in the end face side of the outer peripheral surface so as to be annular in parallel with the axial direction, and is identical to the slots 9f, 9f. Shaped seal members 9g, 9g are respectively mounted.
[0012]
The water shutoff valve seat is formed integrally with the main body in a normal faucet fitting, but if it is formed in a pipe joint that is coupled to the main body, the main body is left as it is when the valve seat is worn over time. It is only necessary to use and replace the pipe joint, and the faucet fitting can be repaired at a minimum cost. The pipe joint is made of a material having high corrosion resistance and abrasion resistance such as stainless steel and bronze, and the main body is made of an inexpensive material such as brass, brass casting and synthetic resin, so that the cost can be reduced.
[0013]
The sealing members 9g, 9g are for catching foreign matters attached to the inner peripheral surface of the water pipe 12 and preventing water leakage, and are made of an elastic material such as a packing or an O-ring. When the seal members 9g and 9g are fitted to the outer periphery of 9e, the seal members 9g and 9g are deformed so as to be in close contact with the inner peripheral surface of the water pipe 12 so as to secure the seal.
[0014]
The nut 10 has an inner peripheral surface formed with a female screw portion 10a which is screwed to the second male screw portion 9d of the joint main body 9, and a deeper portion of the female screw portion 10a is provided with an opening 10b into which the water pipe 12 is inserted. A tapered surface 10c having a gradually decreasing diameter is formed as it goes.
[0015]
The ring 11 is inserted inside the tapered surface 10c of the nut 10, and can be reduced in diameter and enlarged by forming a slit in a part in the axial direction. Are formed on the tapered surface 11a for easily inserting the tape.
[0016]
Accordingly, since the diameter of the ring 11 increases when the water pipe 12 is inserted, the ring 11 can be easily inserted into the pipe joint 8. However, when a force is applied to pull out the water pipe 12 from the joint body 9, the ring 11 contracts. , So that it cannot be pulled out from the joint body 9.
[0017]
The valve mechanism 13 has a water stopping function and a flow rate adjusting function, and has a valve stem 14 having a valve body 15 which comes into contact with and separates from the valve seat 9c of the pipe joint 8, and the valve stem 14 can be moved forward and backward. The guide 16 is inserted into the second female screw 7a of the second fitting hole 7, and the water-side handle 2 connected to the other end of the valve rod 14 is operated in the rotation direction. The valve body 15 moves between the guide 16 and the valve seat 9b together with the valve stem 14.
[0018]
The water pipe 12 for water or hot water is made of a polyethylene pipe, a cross-linked polypropylene pipe or the like made of a synthetic resin which can be easily bent. As shown in FIG. 17 and is protected from the outside, the upstream side is connected to a header 18 of water or hot water, pulled out of the sheath tube 17 and rises on the floor, and the end is guided by the guide portion of the pipe joint 8 as shown in FIG. The water pipe 12 is connected to the pipe joint 8 by externally fitting the pipe 9e.
[0019]
The fixing tool 19 has a shape provided with covers 20, 20 for covering the connecting portions between the pipe joints 8, 8 and the water pipes 12, 12 from below the top plate B, and a pair of through holes 21, 21, a separately provided bolt 22 is inserted from below the top plate B into the through hole 21, and is inserted into the mounting hole C of the top plate B and screwed into the screw hole 1 a provided on the bottom surface of the main body 1. In this way, the top plate B is sandwiched between the faucet fitting A and the fixture 19, and the faucet fitting A is fixed to the top plate B.
[0020]
Now, a case where the water pipe 12 is connected to the pipe fitting 8 of the faucet fitting A will be described. First, the pipe fitting 8 connected to the main body 1 is attached to a mounting hole C formed in a top plate B of a bathroom, a sink or a sink. Through from above. Then, if each bolt 22 is inserted into the through hole 21 of the fixture 19 and screwed, the faucet fitting A is fixed to the top plate B. Next, in the lower part of the top plate B, after inserting each cover 20 of the fixture 19 into each water pipe 12 of water and hot water drawn from the sheath pipe 17, the water pipe 12 is inserted into the pipe joint 8 and connected. .
[0021]
As described above, according to the present invention, the water pipe can be connected to the faucet fitting by a push-lock type which can be connected simply by inserting the water pipe into the pipe joint, and there is no need to screw and connect the nut as in the conventional case. . Therefore, anyone can easily connect, and it is possible to prevent water leakage due to a construction error.
[0022]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, a water pipe can be easily connected by the push lock type which can be connected only by inserting in the pipe joint connected with the faucet fitting, and can greatly improve workability.
[0023]
Further, since the valve seat is formed in the pipe joint, if the valve seat is worn, only the pipe joint needs to be replaced, and the main body can be used as it is, which is economical. Further, the main body can be formed of brass, brass casting or synthetic resin, which is an inexpensive material, so that the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a front view of a faucet fitting according to the present invention.
FIG. 2 is an enlarged vertical sectional view of a main part of FIG.
FIG. 3 is an overall explanatory view of a header pipe.
FIG. 4 is an explanatory diagram of a conventional technique.
FIG. 5 is an overall explanatory view of a conventional header pipe.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Water side handle 3 Hot water side handle 4 Water discharge pipe 5 Mixing chamber 6 First fitting hole 8 Pipe joint 9 Joint body 9a First male screw part 9b Passage 9c Valve seat 9d Second male screw part 9e Guide part 10 Nut 11 Ring 12 water pipe 13 valve mechanism 15 valve body A faucet fitting B top plate

Claims

天板に固定される本体には水と湯が混合される混合室が形成され、該混合室の湯水が吐水される吐水管が装着された水栓金具において、前記混合室の下部に嵌合孔を開口し、該嵌合孔に管継手を着脱自在に結合し、該管継手は合成樹脂製の通水管を差し込むだけで接続することのできるプッシュロック式としたことを特徴とする水栓金具。A mixing chamber in which water and hot water are mixed is formed in a main body fixed to the top plate, and a water faucet fitted with a water discharge pipe for discharging hot water from the mixing chamber is fitted to a lower portion of the mixing chamber. A faucet characterized by being a push-lock type in which a hole is opened, a pipe joint is detachably connected to the fitting hole, and the pipe joint can be connected simply by inserting a synthetic resin water pipe. Metal fittings.

前記管継手は、外周に雄ねじ部を形成し該雄ねじ部の内側に通水管を外嵌する案内部を設けた継手本体と、前記雄ねじ部に螺着するナットと、該ナットと案内部の間に介在させるリングとを備え、合成樹脂製の通水管を差し込むだけで接続状態とすることができることを特徴とする請求項１記載の水栓金具。The pipe joint has an external thread portion formed on an outer periphery thereof, a joint body provided with a guide portion for externally fitting a water pipe inside the external thread portion, a nut screwed to the external thread portion, and a portion between the nut and the guide portion. 2. The faucet fitting according to claim 1, further comprising: a ring interposed between the water faucet and a connection state only by inserting a synthetic resin water pipe.

前記本体はハンドルの操作で該ハンドルと連繋した弁体が弁座に接離し、管継手の通路から混合室への流路を開閉する弁機構を備え、前記弁座を管継手に形成したことを特徴とする請求項１又は２記載の水栓金具。The main body includes a valve mechanism that opens and closes a flow path from a pipe joint passage to the mixing chamber by operating a handle so that a valve body connected to the handle contacts and separates from a valve seat, and the valve seat is formed in a pipe joint. The faucet fitting according to claim 1 or 2, wherein: