JP2012172411A - Combination faucet - Google Patents

Combination faucet Download PDF

Info

Publication number
JP2012172411A
JP2012172411A JP2011035935A JP2011035935A JP2012172411A JP 2012172411 A JP2012172411 A JP 2012172411A JP 2011035935 A JP2011035935 A JP 2011035935A JP 2011035935 A JP2011035935 A JP 2011035935A JP 2012172411 A JP2012172411 A JP 2012172411A
Authority
JP
Japan
Prior art keywords
outer housing
connecting member
insertion hole
water
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2011035935A
Other languages
Japanese (ja)
Inventor
Yukiko Toyoda
夕起子 豊田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lixil Corp
Original Assignee
Lixil Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lixil Corp filed Critical Lixil Corp
Priority to JP2011035935A priority Critical patent/JP2012172411A/en
Publication of JP2012172411A publication Critical patent/JP2012172411A/en
Withdrawn legal-status Critical Current

Links

Images

Landscapes

  • Domestic Plumbing Installations (AREA)
  • Valve Housings (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a combination faucet excellent in external appearance without causing the problem in which a connection member causes a joint in appearance to impair the appearance of a faucet when connecting a mixed water outflow opening on an outer housing side and an outflow opening on an inner housing side with each other by a connection member.SOLUTION: A combination faucet is provided with an outflow opening 64 penetrating a cylindrical wall in the inward/outward direction thereof in an outer housing 30 and a cylindrical discharge port 260 protruding outward from the outer housing 30. Meanwhile, an outflow opening 60 is provided in an inner housing 32, and the outflow openings 64, 60 are watertightly connected with each other by a connection member 262. This connection structure is configured such that the connection member 262 is built in inside the outer housing 30 and the connection member 262 is fixed by a fixing clip 264 in an axial direction inside the outer housing 30.

Description

この発明は混合水栓に関し、詳しくは水栓本体が筒形の外ハウジングと内ハウジングとの２重ハウジング構造をなして、それらの間に流路を形成する混合水栓に関する。   The present invention relates to a mixing faucet, and more particularly to a mixing faucet in which a faucet body forms a double housing structure of a cylindrical outer housing and an inner housing and a flow path is formed between them.

従来において、湯水混合水栓は水栓本体の本体ボデーをなすハウジングを金属の鋳物にて一体に構成し、その内壁面に水側，湯側の１次側流路や２次側の混合水の流路等を形成する流路壁を一体に設け、そしてその内部に、湯水の混合比率を変化させて混合水の温度調節を行う混合弁ユニットや、流路切替えをなす切替弁ユニット等を納めた構造のものが一般的であった。   Conventionally, a hot and cold water mixing faucet has a housing that forms a body body of the faucet body integrally formed of a metal casting, and the inner wall surface has a water-side, hot water-side primary channel and secondary-side mixed water. A flow path wall that forms the flow path is integrally provided, and a mixing valve unit that adjusts the temperature of the mixed water by changing the mixing ratio of hot water, a switching valve unit that performs flow path switching, etc. The one with the enclosed structure was common.

しかしながらこの湯水混合水栓の場合、金属製のハウジングを製造する際に複雑な構造の流路壁を内壁面に一体に設けなければならず、製造の工程数が多くなり、また技術的にも多くの困難を伴うといった問題がある。   However, in the case of this hot and cold water mixing faucet, the flow path wall having a complicated structure must be integrally provided on the inner wall surface when manufacturing a metal housing, which increases the number of manufacturing steps and technically. There is a problem with many difficulties.

このような事情の下で、水栓本体のハウジングを筒形の外ハウジングと内ハウジングとの２重ハウジング構造となして、それらハウジング間に１次側流路としての水側流路，湯側流路及び２次側流路として混合水の流路を、シール部材の配置パターンによって形成するようになした混合水栓が下記特許文献１に提案されている。   Under such circumstances, the faucet body housing has a double housing structure of a cylindrical outer housing and an inner housing, and a water side channel as a primary side channel between the housings, a hot water side Japanese Patent Application Laid-Open No. 2004-133867 proposes a mixed water faucet in which a mixed water channel is formed as a flow channel and a secondary channel by a seal member arrangement pattern.

この特許文献１に開示のものでは、軸方向の中間部において内ハウジングの筒壁外面に複数のシール保持部を所定パターンで突出形成して、そこにＯリング等の弾性シール部材を装着して保持させ、そしてそれらシール部材を、内ハウジングの筒壁の外面と外ハウジングの筒壁の内面とでハウジング径方向に挟み込むことで、シール部材の配置パターンにて画定される複数の流路を内ハウジングと外ハウジングとの間に形成するようにしている。   In the one disclosed in Patent Document 1, a plurality of seal holding portions are formed to protrude in a predetermined pattern on the outer surface of the cylindrical wall of the inner housing at an axial intermediate portion, and an elastic seal member such as an O-ring is attached thereto. These seal members are held between the outer surface of the cylinder wall of the inner housing and the inner surface of the cylinder wall of the outer housing in the radial direction of the housing, so that a plurality of flow paths defined by the arrangement pattern of the seal members can be formed. It is formed between the housing and the outer housing.

しかしながらこの場合、複数の流路を区画形成するためのシール部材を、内ハウジングが外ハウジングとともにそれらの径方向に挟み込んでシールを行わなければならないことから、内ハウジングの形状に大きな制約が生じるとともに、軸方向の中間部において突出形状のシール保持部を部分的に厚肉の偏肉部として形成しておかなければならないといった問題がある。   However, in this case, since the inner housing must be sandwiched in the radial direction together with the outer housing to seal the plurality of flow paths, the shape of the inner housing is greatly restricted. There is a problem in that the protruding seal holding portion must be partially formed as a thick-walled uneven portion in the intermediate portion in the axial direction.

また内ハウジングの筒壁の外面と外ハウジングの筒壁の内面とでシール部材を径方向に挟む関係上、シール部材が必然的に長く、大きくなってしまい、シール部材をハウジングの径方向に弾性圧縮変形させる状態に外ハウジングと内ハウジングとを組み付ける際の組付性が悪く、更に内ハウジングを外ハウジングに軸方向に挿入して組付けを行うに際してシール部材を噛み込んでしまう恐れがある。
また場合によって、シール部材の噛込みを防ぐためにシール部材を冷凍した上で組み付けることが必要であるなどの問題がある。 In addition, the seal member is inevitably long and large because the seal member is sandwiched in the radial direction between the outer surface of the cylindrical wall of the inner housing and the inner surface of the cylindrical wall of the outer housing, and the seal member is elastic in the radial direction of the housing. When the outer housing and the inner housing are assembled in a state of being compressed and deformed, the assemblability is poor, and there is a possibility that the seal member may be caught when the inner housing is inserted into the outer housing in the axial direction.
In some cases, there is a problem that the seal member needs to be frozen and assembled in order to prevent the seal member from being caught.

そこで外ハウジングの筒壁の内面と内ハウジングの筒壁の外面との間の空間を、それらの間に挟み込んだシール部材により１次側流路としての水側流路及び湯側流路、更に２次側流路としての混合水の流路等の複数の流路に区画するといったことをせずに、外ハウジングと内ハウジングとの間の空間を単一の流路、例えば水側流路とする一方、外ハウジングには筒壁を貫通する湯の流入用の外ハウジング側通水開口を、また内ハウジングには筒壁を貫通する湯の流入用の内ハウジング側通水開口をそれぞれ備えて、それら外ハウジング側通水開口と内ハウジング側通水開口とを、外ハウジングとは別部材をなす筒形の接続部材にて接続すること、詳しくは外ハウジングから外部に突出して湯の流入口部を構成する、外ハウジングとは別部材の筒形部材を接続部材として外ハウジング側通水開口から内部に差し込み、その接続部材の軸心周りに配置したシール部材にて、外ハウジング側通水開口と内ハウジング側通水開口とを水密シールした状態に接続することが考えられる。   Therefore, a water-side channel and a hot-water channel as primary-side channels by a seal member sandwiched between the inner surface of the cylindrical wall of the outer housing and the outer surface of the cylindrical wall of the inner housing, The space between the outer housing and the inner housing is not separated into a plurality of flow paths such as a mixed water flow path as a secondary flow path, but a single flow path, for example, a water flow path On the other hand, the outer housing has an outer housing side water passage opening for inflow of hot water that penetrates the cylindrical wall, and the inner housing has an inner housing side water passage opening for inflow of hot water that penetrates the cylindrical wall. The outer housing side water passage opening and the inner housing side water passage opening are connected by a cylindrical connecting member that is a separate member from the outer housing. A separate member from the outer housing that forms the inlet The shape member is inserted into the inside through the outer housing side water passage opening as a connection member, and the outer housing side water passage opening and the inner housing side water passage opening are watertight sealed with a seal member disposed around the axis of the connection member. It is conceivable to connect to the state.

或いは内ハウジングと外ハウジングとの間の単一の流路を湯側流路として、外ハウジングと内ハウジングとのそれぞれに水流入用の外ハウジング側通水開口及び内ハウジング側通水開口を設け、外ハウジング側通水開口と内ハウジング側通水開口とを、外ハウジングから外部に突出して水の流入口部を構成する、外ハウジングとは別部材の筒形部材を接続部材として水密接続すること、また前者及び後者の場合において、外ハウジング側通水開口と内ハウジング側通水開口とを混合水の流出用の通水開口として、それらを混合水の流出口部を構成する、外ハウジングとは別部材の筒形部材を接続部材として水密に接続するといったことが考えられる。   Alternatively, a single flow path between the inner housing and the outer housing is used as a hot water side flow path, and an outer housing side water passage opening and an inner housing side water passage opening for water inflow are provided in each of the outer housing and the inner housing. The outer housing side water passage opening and the inner housing side water passage opening project from the outer housing to the outside to form a water inlet portion, and are connected in a watertight manner with a cylindrical member separate from the outer housing as a connecting member. In addition, in the former and the latter cases, the outer housing side water passage opening and the inner housing side water passage opening are used as water passage openings for flowing out the mixed water, and they constitute an outlet portion of the mixed water. It is conceivable that a cylindrical member which is a separate member is connected in a watertight manner as a connecting member.

この場合、外ハウジングの筒壁と内ハウジングの筒壁との間に、複数の流路を区画形成するためのシール部材を設けたりしなくても、筒形の接続部材と外ハウジング側通水開口及び内ハウジング側通水開口との間をシールすることで、所要の複数の流路を形成することが可能であり、そしてこのようにすれば、外ハウジングと内ハウジングとの間且つ軸方向両端間の中間部に、それらの間の空間を複数の流路に区画するための複数のシール部材を所定パターンで配置することに起因して生ずる上記の問題を解消することが可能となる。   In this case, the cylindrical connection member and the water flow on the outer housing side can be provided without providing a seal member for defining a plurality of flow paths between the cylindrical wall of the outer housing and the cylindrical wall of the inner housing. By sealing between the opening and the water passage opening on the inner housing side, it is possible to form a plurality of required flow paths, and in this way, between the outer housing and the inner housing and in the axial direction. It becomes possible to eliminate the above-described problems caused by arranging a plurality of seal members for partitioning a space between them into a plurality of flow paths in a predetermined pattern at an intermediate portion between both ends.

しかしながらそのようになした場合、外ハウジングとは別部材をなす筒形の接続部材が外ハウジングから外部に突き出すことによって、そこに外観上の継目が生じてしまい、このことが外観を損ねてしまったり或いは外観形状の制約になるといった問題が生ずる。   In such a case, however, the cylindrical connecting member, which is a member different from the outer housing, protrudes from the outer housing to the outside, thereby creating an appearance seam, which impairs the appearance. There arises a problem that it becomes loose or restricts the external shape.

尚本発明に関連する先行技術として、下記特許文献２には「水栓」についての発明が示され、その図２において２重ハウジング構造をなす水栓の外側ケーシング（外ハウジング）とクランク脚とを接続金具で接続するようになした点、更にその接続金具とクランク脚とを締め具にて連結した点が開示されている。
但しこの特許文献２に記載のものは接続金具が外ハウジング内に内蔵されるものでない点で基本的に本発明とは異なっている。 As prior art related to the present invention, the following Patent Document 2 discloses an invention about a “water faucet”, and in FIG. 2, an outer casing (outer housing) of a faucet having a double housing structure, a crank leg, Are connected with a connecting bracket, and further, the connecting bracket and the crank leg are connected with a fastener.
However, the one described in Patent Document 2 basically differs from the present invention in that the connection fitting is not built in the outer housing.

特許第２６９５３６４号公報Japanese Patent No. 2695364 特開平６−２９４４７５JP-A-6-294475

本発明は以上のような事情を背景とし、外ハウジング側通水開口と内ハウジング側通水開口とを接続部材で接続するに際して、接続部材が水栓の外観上継目を生じて外観を損ねるといった問題を生じない、外ハウジングと内ハウジングとを有する外観に優れた混合水栓を提供することを目的としてなされたものである。   The present invention is based on the circumstances as described above, and when connecting the outer housing side water passage opening and the inner housing side water passage opening with the connection member, the connection member causes a seam on the appearance of the faucet and impairs the appearance. The object of the present invention is to provide a mixing faucet having an outer housing and an inner housing that does not cause a problem and has an excellent appearance.

而して請求項１のものは、水栓本体が筒形の外ハウジングと内ハウジングとを有し、該外ハウジングと内ハウジングとの間に流路を形成する混合水栓において、前記外ハウジングには筒壁を貫通する流入用又は流出用の外ハウジング側通水開口と、該外ハウジング側通水開口から外部に突出する流入口部又は流出口部を備える一方、前記内ハウジングには、該外ハウジング側通水開口に対応した流入用又は流出用の内ハウジング側通水開口を備えて、それら外ハウジング側通水開口と内ハウジング側通水開口とを接続部材にて接続し、該接続部材を前記外ハウジングの内側に内蔵させるとともに、該外ハウジングの内側において該接続部材を該接続部材とは別体の固定部材にて固定したことを特徴とする。   Thus, according to the first aspect of the present invention, there is provided a mixing faucet in which a faucet body has a cylindrical outer housing and an inner housing, and a flow path is formed between the outer housing and the inner housing. Is provided with an outer housing side water passage opening for inflow or outflow that penetrates the cylindrical wall, and an inflow port portion or an outflow port portion that protrudes to the outside from the outer housing side water passage opening. An inflow or outflow inner housing side water passage opening corresponding to the outer housing side water passage opening is provided, and the outer housing side water passage opening and the inner housing side water passage opening are connected by a connecting member, The connecting member is incorporated inside the outer housing, and the connecting member is fixed by a fixing member separate from the connecting member inside the outer housing.

請求項２のものは、請求項１において、前記外ハウジングの内側には、前記接続部材及び前記固定部材を内嵌状態に挿入させる挿入穴が設けられ、該接続部材と固定部材とが該挿入穴に対して軸方向に隣接した位置で内嵌し、該固定部材が該接続部材の軸方向の端面、及び該端面とは反対側の前記挿入穴への当接により、該接続部材を軸方向に位置決状態に固定していることを特徴とする。   According to a second aspect of the present invention, in the first aspect, an insertion hole for inserting the connection member and the fixing member into an inner fitting state is provided inside the outer housing, and the connection member and the fixing member are inserted into the insertion portion. The connecting member is fitted in at a position adjacent to the hole in the axial direction, and the fixing member is brought into contact with the axial end surface of the connecting member and the insertion hole on the side opposite to the end surface to thereby pivot the connecting member. It is characterized in that it is fixed in a positioning state in the direction.

請求項３のものは、請求項２において、前記挿入穴が前記外ハウジングの内側空間から径方向外方向に向って延びているとともに、該外ハウジングは、該内側空間を間にして該挿入穴に対向した位置に、前記接続部材及び固定部材が通過可能な開口を有していることを特徴とする。   According to a third aspect of the present invention, in the second aspect, the insertion hole extends radially outward from the inner space of the outer housing, and the outer housing has the insertion hole in between the inner space. The connection member and the fixing member have an opening through which the connection member and the fixing member can pass.

請求項４のものは、請求項３において、前記外ハウジングの前記流入口部又は流出口部は屈曲形状であることを特徴とする。   According to a fourth aspect of the present invention, in the third aspect of the present invention, the inflow portion or the outflow portion of the outer housing is bent.

請求項５のものは、請求項３，４の何れかにおいて、前記固定部材が弾性を有するリング状の固定クリップであり、前記接続部材は、該固定クリップを縮径状態で内側に収容し保持するクリップ保持部を前記挿入穴への挿入方向の先端側に有するものとなしてあり、該固定クリップが、該接続部材に保持されて該接続部材とともに径方向に重複状態で前記挿入穴に挿入可能、且つ挿入後においてそれら固定クリップと接続部材とが軸方向に分離され、該接続部材が該分離に伴って前記挿入穴から前記外ハウジングの内側空間に突出するものとなしてあることを特徴とする。   According to a fifth aspect of the present invention, in any one of the third and fourth aspects, the fixing member is a ring-shaped fixing clip having elasticity, and the connecting member houses and holds the fixing clip in a reduced diameter state. A clip holding portion is provided on the distal end side in the insertion direction to the insertion hole, and the fixed clip is held by the connection member and is inserted into the insertion hole in a radially overlapping state together with the connection member. The fixing clip and the connecting member are separated in the axial direction after insertion, and the connecting member protrudes from the insertion hole into the inner space of the outer housing along with the separation. And

請求項６のものは、請求項５において、前記固定クリップには径方向内方に突出し、治具により前記挿入穴への押込方向の押圧力を受ける第１係合部が、また前記接続部材には径方向内方に突出し、該治具により該挿入穴からの抜出方向の力を受ける第２係合部がそれぞれ設けてあることを特徴とする。   According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the first engaging portion that protrudes radially inward from the fixing clip and receives a pressing force in the pressing direction into the insertion hole by the jig is also the connecting member. Are provided with second engaging portions that project inward in the radial direction and receive a force in the direction of extraction from the insertion hole by the jig.

請求項７のものは、請求項５，６の何れかにおいて、前記固定クリップを保持した状態で前記接続部材を前記挿入穴に挿入した状態では、前記内ハウジングを前記外ハウジングに対して軸方向に挿入可能であり、前記固定クリップを軸方向に分離し、前記接続部材を前記挿入穴への挿入方向と逆方向に引き出すことで、該接続部材を前記内ハウジング側通水開口に接続可能となしてあることを特徴とする。   According to a seventh aspect of the present invention, in any one of the fifth and sixth aspects, the inner housing is axially oriented with respect to the outer housing when the connecting member is inserted into the insertion hole while the fixing clip is held. The connecting clip can be connected to the water passage opening on the inner housing side by separating the fixing clip in the axial direction and pulling out the connecting member in a direction opposite to the direction of insertion into the insertion hole. It is characterized by being.

発明の作用・効果Effects and effects of the invention

以上のように本発明は、外ハウジングに備えた流入用又は流出用の外ハウジング側通水開口と、内ハウジングに設けた対応する流入用又は流出用の内ハウジング側通水開口とを、接続部材にて接続するようになし、接続部材を外ハウジングの内側に内蔵させるとともに、外ハウジングの内側において接続部材をこれとは別体をなす固定部材にて固定したものである。   As described above, the present invention connects the inflow or outflow outer housing side water flow opening provided in the outer housing and the corresponding inflow or outflow inner housing side water flow opening provided in the inner housing. The connection member is built in, and the connection member is built inside the outer housing, and the connection member is fixed inside the outer housing by a fixing member that is separate from the connection member.

本発明によれば、外ハウジング側通水開口と内ハウジング側通水開口とを接続する接続部材が、外ハウジングの内側に内蔵されているため、接続部材が外ハウジングから外部に突出して、そこに継目を形成する等して水栓の外観を損ねる問題を生じず、水栓を良好な外観で構成することができる。
また接続部材は外観に現れないため、接続部材をメッキ仕上げするなどの外観仕上げの処理を不要化でき、コストを安価とすることができる。
更にその接続部材は直接吐水管やホース，給水管等と接続されないために接続部材には大きな荷重はかからず、従って強度も要求されないため接続構造を安価に構成することができる。 According to the present invention, since the connection member that connects the outer housing side water passage opening and the inner housing side water passage opening is built in the outer housing, the connection member protrudes from the outer housing to the outside. The faucet can be configured with a good appearance without causing a problem of damaging the appearance of the faucet by forming a seam or the like.
Further, since the connecting member does not appear in the appearance, it is possible to eliminate the need for an external finishing process such as plating the connecting member, and the cost can be reduced.
Further, since the connecting member is not directly connected to the water discharge pipe, hose, water supply pipe or the like, the connecting member is not subjected to a large load, and therefore the strength is not required.

また本発明では、接続部材をこれとは別体の固定部材にて固定するため、接続部材及び固定部材の何れをも外ハウジングの内側に内蔵させているにも拘らず、接続部材による外ハウジング側通水開口と内ハウジング側通水開口との接続を容易に行うことができ、且つ接続部材の固定自体も容易に行うことができる。
具体的には、接続部材を外ハウジングにねじ込み固定する等の固定手段によらず、接続部材とは別体の固定部材を所定位置に装着することで、接続部材を固定状態となすことができる。 In the present invention, since the connecting member is fixed by a separate fixing member, the outer housing by the connecting member is provided regardless of whether the connecting member or the fixing member is incorporated inside the outer housing. Connection between the side water passage opening and the inner housing side water passage opening can be easily performed, and the connection member itself can be easily fixed.
Specifically, the connecting member can be brought into a fixed state by mounting a fixing member separate from the connecting member at a predetermined position, regardless of fixing means such as screwing and fixing the connecting member to the outer housing. .

本発明では、外ハウジングの内側に、接続部材及び固定部材を内嵌状態に挿入させる挿入穴を設けておいて、その挿入穴に対して接続部材と固定部材とを軸方向に隣接した位置で内嵌させ、そして固定部材を接続部材の軸方向の端面、及びその端面とは反対側の挿入穴に当接させることにより、接続部材を固定部材により軸方向に位置決状態に固定するようになしておくことができる（請求項２）。
このようにすれば、固定部材によって簡単に接続部材を軸方向に固定状態となすことができる。 In the present invention, an insertion hole for inserting the connection member and the fixing member into the inner fitting state is provided inside the outer housing, and the connection member and the fixing member are positioned adjacent to each other in the axial direction with respect to the insertion hole. The connecting member is fixed in the axially positioned state by the fixing member by fitting the fixing member into contact with the axial end surface of the connecting member and the insertion hole opposite to the end surface. (Claim 2).
In this way, the connecting member can be easily fixed in the axial direction by the fixing member.

次に請求項３は、上記挿入穴を外ハウジングの内側空間から径方向外方に向って延びる形態で設けるとともに、外ハウジングは、その内側空間を間にして挿入穴に対向した位置に、接続部材及び固定部材が通過可能な開口を有するものとなしたもので、この請求項３によれば、外ハウジング側通水開口から外部に突出する流入口部又は流出口部の内径が小さく、そこから接続部材及び固定部材を挿入できない場合であっても、或いは請求項４に従って外ハウジングの上記の流入口部又は流出口部が屈曲形状をなしていて、そこから接続部材及び固定部材を挿入することができない場合であっても、挿入穴に対し内側空間を間にして対向した位置の外ハウジングの開口を通じて、それら接続部材及び固定部材を支障なく外ハウジングの内側空間、更にはその内側空間を通じて上記の挿入穴に挿入し、固定することができる。   Next, according to a third aspect of the present invention, the insertion hole is provided in a form extending radially outward from the inner space of the outer housing, and the outer housing is connected to a position facing the insertion hole with the inner space therebetween. According to the third aspect, the inner diameter of the inflow port portion or the outflow port portion that protrudes to the outside from the outer housing side water flow opening is small. Even if the connecting member and the fixing member cannot be inserted from the above, or according to claim 4, the inlet or outlet portion of the outer housing has a bent shape, and the connecting member and the fixing member are inserted therefrom. Even if it is not possible, the connecting member and the fixing member can be easily connected to the inner space of the outer housing through the opening of the outer housing facing the insertion hole with the inner space therebetween. Further can be inserted into said insertion hole through which the inner space, fixed.

次に請求項５は、固定部材を弾性を有するリング状の固定クリップとなすとともに、接続部材は、固定クリップを縮径状態で内側に収容し保持するクリップ保持部を挿入穴への挿入方向の先端側に有するものとなし、そして固定クリップを縮径状態でクリップ保持部に径方向に重複状態に保持した状態で接続部材を挿入穴に挿入可能となし、そして挿入後における固定クリップと接続部材との軸方向の分離に伴って、接続部材が挿入穴から外ハウジングの内側空間の側に突出するものとなしたものである。   According to a fifth aspect of the present invention, the fixing member is a ring-shaped fixing clip having elasticity, and the connecting member has a clip holding portion that accommodates and holds the fixing clip inside in a reduced diameter state in the insertion direction of the insertion hole. No connection tip can be inserted into the insertion hole in a state where the fixed clip is held in the reduced diameter state and the clip holding portion is radially overlapped with the clip holding portion, and the fixed clip and the connection member after insertion With the separation in the axial direction, the connecting member protrudes from the insertion hole toward the inner space of the outer housing.

この請求項５によれば、固定クリップ保持状態で接続部材を挿入穴に挿入した状態の下で、内ハウジングを外ハウジングに対して軸方向に挿入可能となすことができ、一方内ハウジングを外ハウジングに挿入した後に固定クリップと接続部材とを軸方向に分離し、接続部材を挿入穴への挿入方向と逆方向に引き出すことで、接続部材を内ハウジング側通水開口に対して接続可能となすことができる（請求項７）。   According to the fifth aspect, the inner housing can be inserted in the axial direction with respect to the outer housing while the connecting member is inserted into the insertion hole while the fixed clip is held. After being inserted into the housing, the fixing clip and the connection member are separated in the axial direction, and the connection member can be connected to the water passage opening on the inner housing side by pulling out the connection member in the direction opposite to the insertion direction into the insertion hole. (Claim 7).

このようにすることで、接続部材及び固定部材としての固定クリップを、外ハウジング側通水開口から外部に突出する筒形の流入口部又は流出口部から外ハウジング内に挿入することができなくても、支障なく且つ容易に接続部材及び固定クリップを目的とする位置に挿入し、固定状態にセットすることができる。   By doing in this way, it is impossible to insert the fixing clip as the connecting member and the fixing member into the outer housing from the cylindrical inflow port portion or the outflow port portion protruding to the outside from the outer housing side water passage opening. Even in this case, the connecting member and the fixing clip can be easily inserted into the target position without any hindrance and set in a fixed state.

この場合において、固定クリップには径方向内方に突出し、治具により挿入穴への押込方向の押圧力を受ける第１係合部を、また接続部材には径方向に突出し、治具により挿入穴からの抜出方向の力を受ける第２係合部をそれぞれ設けておくことができる（請求項６）。
このようにすれば、クリップ保持部に縮径状態で保持された固定クリップ及びこれを保持した接続部材とを、治具を用いて互いに逆向きに力を加え、両者を軸方向に分離させることができる。 In this case, the fixed clip protrudes inward in the radial direction and receives a first engaging portion that receives a pressing force in the pressing direction into the insertion hole by the jig, and the connecting member protrudes in the radial direction and is inserted by the jig. A second engagement portion that receives a force in the direction of extraction from the hole can be provided (claim 6).
If it does in this way, a fixed clip currently held by the clip holding part in a reduced diameter state and a connecting member holding this will be applied to each other in the opposite direction by using a jig to separate them in the axial direction. Can do.

本発明の一実施形態の混合水栓の斜視図である。It is a perspective view of the mixing faucet of one embodiment of the present invention. 図１の混合水栓の一部を水平方向で切り欠いて示した部分断面図である。It is the fragmentary sectional view which notched and showed a part of mixing tap of FIG. 1 in the horizontal direction. 図１の混合水栓の垂直方向の断面図である。It is sectional drawing of the perpendicular direction of the mixing faucet of FIG. 図３の混合弁ユニットを周辺部とともに拡大して示した図である。It is the figure which expanded and showed the mixing valve unit of FIG. 3 with the peripheral part. 図４の混合弁ユニットの一部を分解して示した図である。It is the figure which decomposed | disassembled and showed a part of mixing valve unit of FIG. 図４の混合弁ユニットと温調ハンドルとの接続部分を分解して示した図である。It is the figure which decomposed | disassembled and showed the connection part of the mixing valve unit of FIG. 4, and a temperature control handle. 図３の切替弁ユニットを周辺部とともに拡大して示した図である。It is the figure which expanded and showed the switching valve unit of FIG. 3 with the peripheral part. 同実施形態における内ハウジングの図である。It is a figure of the inner housing in the embodiment. 同実施形態における外ハウジングと内ハウジングとを分解して示した断面図である。It is sectional drawing which decomposed | disassembled and showed the outer housing and the inner housing in the same embodiment. 同実施形態の外ハウジング側の湯流入用開口と内ハンジングの湯流入用開口との接続部分の分解斜視図である。It is a disassembled perspective view of the connection part of the hot water inflow opening by the side of the outer housing of the embodiment, and the hot water inflow opening of the inner hanging. 同実施形態における要部としての、外ハウジング側の湯流入用開口と内ハウジングの湯流入用開口との接続部分の断面図である。It is sectional drawing of the connection part of the hot water inflow opening by the side of an outer housing and the hot water inflow opening of an inner housing as a principal part in the embodiment. 同実施形態におけるスペーサ部材の図である。It is a figure of the spacer member in the embodiment. 同実施形態における接続部材の図である。It is a figure of the connection member in the embodiment. 同実施形態における固定クリップの図である。It is a figure of the fixed clip in the embodiment. 同実施形態の混合水栓の組付手順を示した図である。It is the figure which showed the assembly | attachment procedure of the mixing faucet of the embodiment. 本発明の他の実施形態の混合水栓における外ハウジングの図である。It is a figure of the outer housing in the mixing faucet of other embodiments of the present invention. 図１６の実施形態の混合水栓における要部断面図である。It is principal part sectional drawing in the mixing faucet of embodiment of FIG. 同実施形態における（Ａ）固定クリップ，（Ｂ）接続部材の単品図である。It is a single item figure of (A) fixed clip and (B) connecting member in the embodiment. 同実施形態における混合水栓の組付手順を示した図である。It is the figure which showed the assembly | attachment procedure of the mixing faucet in the embodiment. 図１９に続く組付手順を示した図である。It is the figure which showed the assembly | attachment procedure following FIG. 同実施形態における組付けに際して用いる治具の図である。It is a figure of the jig | tool used at the time of the assembly | attachment in the same embodiment.

次に本発明の実施形態を図面に基づいて詳しく説明する。
図１において、１０は本実施形態の壁付きの混合水栓で、図中左右方向に長手形状をなす水栓本体１２を有している。
水栓本体１２の下面からは、先端に吐水口１４を備えた略Ｌ字状をなす吐水管１６が延び出しており、また背面からはシャワー側の流出口部７６が後方に突出して、そこにシャワーエルボ２０が接続されている。
このシャワーエルボ２０には、図示を省略するシャワーヘッドが可撓性のシャワーホースを介して接続される。 Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, 10 is a mixing faucet with a wall of this embodiment, and has a faucet body 12 having a longitudinal shape in the left-right direction in the figure.
From the lower surface of the faucet body 12, a substantially L-shaped water discharge pipe 16 having a water discharge port 14 at the tip extends, and from the back, a shower-side outlet 76 protrudes rearward. A shower elbow 20 is connected to the main body.
A shower head (not shown) is connected to the shower elbow 20 via a flexible shower hose.

水栓本体１２の長手方向の一端側（図中左端側）には、温調ハンドル（温度調節ハンドル）２２が設けられており、また他端側（図中右端側）には、吐水管１６の側とシャワー側とで流路の切替えを行い、且つ吐水の流量調節を行う切替ハンドル２４が設けられている。
ここで切替ハンドル２４は吐水から止水若しくはその逆への切替えも行う。 A temperature adjustment handle (temperature adjustment handle) 22 is provided on one end side (left end side in the figure) of the faucet body 12 in the longitudinal direction, and a water discharge pipe 16 is provided on the other end side (right end side in the figure). A switching handle 24 is provided for switching the flow path between the shower side and the shower side and adjusting the flow rate of the discharged water.
Here, the switching handle 24 also performs switching from water discharge to water stoppage or vice versa.

水栓本体１２からはまた、給水管を兼ねた水側のクランク脚２６、及び給湯管を兼ねた湯側のクランク脚２８がそれぞれ後方に延び出している。
本実施形態の混合水１０は、これら一対のクランク脚２６，２８によって後方の壁に取り付けられている。 From the faucet body 12, a water-side crank leg 26 also serving as a water supply pipe and a hot water-side crank leg 28 also serving as a hot water supply pipe respectively extend rearward.
The mixed water 10 of the present embodiment is attached to the rear wall by the pair of crank legs 26 and 28.

図２に示しているように、水栓本体１２は横断面の内面形状が円形をなす略円筒状の金属製の外ハウジング３０を本体ボデーとして有しており、またその内側において、同じく横断面の内面形状が円形をなす樹脂製の略円筒状の内ハウジング３２を有している。
即ちこの実施形態の水栓１０は、水栓本体１２が２重ハウジング構造をなしている。
ここで外ハウジング３０の内面は、図９（Ａ）に示すように基本的に凹凸を有しない平滑な面とされていて、そこには複数の流路を区画形成するための流路壁は突出形成されていない。 As shown in FIG. 2, the faucet body 12 has a substantially cylindrical metal outer housing 30 having a circular inner cross-sectional shape as a main body, and on the inner side, the cross-section is also the same. The inner housing 32 is made of resin and has a substantially cylindrical shape.
That is, in the faucet 10 of this embodiment, the faucet body 12 has a double housing structure.
Here, the inner surface of the outer housing 30 is basically a smooth surface having no irregularities as shown in FIG. 9A, and there are flow path walls for partitioning a plurality of flow paths. No protrusion is formed.

またこの実施形態において、外ハウジング３０と内ハウジング３２との間の空間は、軸方向の両端部で弾性を有する環状のシール部材３４でシールされているが、軸方向の中間部ではシール部材によるシールはなされておらず、外ハウジング３０と内ハウジング３２との間に形成される空間は、基本的に軸方向の一端から他端にかけて単一の空間を形成している。
この実施形態では、これら外ハウジング３０と内ハウジング３２との間に形成される空間はその全体が単一の流路、ここでは１次側の水側流路３６を形成している。 In this embodiment, the space between the outer housing 30 and the inner housing 32 is sealed with an annular seal member 34 having elasticity at both ends in the axial direction. Sealing is not performed, and the space formed between the outer housing 30 and the inner housing 32 basically forms a single space from one end to the other end in the axial direction.
In this embodiment, the entire space formed between the outer housing 30 and the inner housing 32 forms a single flow path, here, a primary water-side flow path 36.

外ハウジング３０の背面（図２中上面）且つ図中右端側には、水を外ハウジング３０の内部、つまり外ハウジング３０と内ハウジング３２との間の水側流路３６に流入させる水流入用開口（外ハウジング側通水開口）３８が設けられており、そしてこの水流入用開口３８から、外ハウジング３０に一体に構成された筒形（円筒形）の水流入口部４０が後方（図中上方）に突出していて、この水流入口部４０に対し、給水管を兼ねた水側のクランク脚２６が締結ナット４６にてねじ結合されている。   On the back surface (upper surface in FIG. 2) of the outer housing 30 and on the right end side in the drawing, water is introduced into the outer housing 30, that is, to the water-side flow path 36 between the outer housing 30 and the inner housing 32. An opening (outer housing side water passage opening) 38 is provided, and a cylindrical (cylindrical) water inlet 40 formed integrally with the outer housing 30 from the water inflow opening 38 is rearward (in the drawing). The water-side crank leg 26 that also serves as a water supply pipe is screwed to the water inlet 40 by a fastening nut 46.

クランク脚２６を通じて供給された水は、この水流入口部４０，水流入用開口３８を通じて上記の水側流路３６へと流入する。
尚、クランク脚２６と水流入口部４０との接続部の内部には、クランク脚２６から水流入用開口３８に向けての水の流れのみを許容し、逆方向の流れを阻止する、弁体４２を備えた一方向性の逆止弁４４が設けられている。 The water supplied through the crank leg 26 flows into the water-side channel 36 through the water inlet 40 and the water inflow opening 38.
A valve body that allows only a flow of water from the crank leg 26 toward the water inflow opening 38 and prevents a reverse flow inside the connecting portion between the crank leg 26 and the water inlet portion 40. A one-way check valve 44 with 42 is provided.

一方内ハウジング３２の図中左端側の前面（図中下面）には、水側流路３６に流入した水を内ハウジング３２内に流入させる、内ハウジング３２側の水流入用開口（内ハウジング側通水開口）４８が筒壁を貫通して設けられている。
クランク脚２６を通じて供給された水は、外ハウジング３０の内側の水側流路３６に流入した後、この内ハウジング３２側の水流入用開口４８を通じて内ハウジング３２内に流入する。 On the other hand, on the front surface (lower surface in the figure) of the inner housing 32 on the left end side in the figure, the water inflow opening on the inner housing 32 side (inner housing side) through which water that has flowed into the water side flow path 36 flows into the inner housing 32. A water passage opening 48 is provided through the cylindrical wall.
The water supplied through the crank leg 26 flows into the water-side flow path 36 inside the outer housing 30 and then flows into the inner housing 32 through the water inflow opening 48 on the inner housing 32 side.

図中左端側において、内ハウジング３２には背面側（図中上面側）に、湯流入用開口（内ハウジング側通水開口）５０が筒壁を貫通して設けられている。
またこれに対し径方向に対向する位置において、外ハウジング３０には湯流入用開口（外ハウジング側通水開口）５２が設けられて、それらが後に詳述する接続部材５４にて水密に接続されている。 On the left end side in the figure, the inner housing 32 is provided with a hot water inflow opening (inner housing side water passage opening) 50 penetrating the cylindrical wall on the back side (upper surface side in the figure).
On the other hand, at a position opposed to the radial direction, the outer housing 30 is provided with a hot water inflow opening (outer housing side water passage opening) 52, which is watertightly connected by a connecting member 54 described in detail later. ing.

この外ハウジング３０側の湯流入用開口５２からは、円筒形状をなす湯流入口部５５が外ハウジング３０から一体に突出しており、そしてその湯流入口部５５に対し、湯側のクランク脚２８が締結ナット４６にてねじ結合されている。
この湯流入口部５５の側においても、これとクランク脚２８との接続部の内部に、弁体４２を有する逆止弁４４が設けられている。
この湯側の逆止弁４４は、クランク脚２８から湯流入用開口５２に向けての湯の流れのみを許容し、逆方向の流れを阻止する。 From the hot water inflow opening 52 on the outer housing 30 side, a cylindrical hot water inlet portion 55 projects integrally from the outer housing 30, and with respect to the hot water inlet portion 55, the hot water side crank leg 28. Are screwed together by a fastening nut 46.
A check valve 44 having a valve body 42 is also provided on the side of the hot water inlet 55 inside the connecting portion between the hot water inlet 55 and the crank leg 28.
The hot water-side check valve 44 allows only the flow of hot water from the crank leg 28 toward the hot water inflow opening 52 and blocks the flow in the reverse direction.

而してクランク脚２８から外ハウジング３０の湯流入用開口５２に流入した湯は、接続部材５４による連絡によって、そのまま外ハウジング３０と内ハウジング３２との間の水側流路３６を横切って、内ハウジング３２側の湯流入用開口５０へと到り、更にこれを通過して内ハウジング３２内部へと流入する。   Thus, the hot water that has flowed into the hot water inflow opening 52 of the outer housing 30 from the crank leg 28 crosses the water-side flow path 36 between the outer housing 30 and the inner housing 32 as it is due to communication by the connecting member 54. It reaches the hot water inflow opening 50 on the inner housing 32 side, and further passes through this to flow into the inner housing 32.

そして内ハウジング３２の内部に流入した水と湯とは、図３に示しているように内ハウジング３２の内部に軸方向に挿入されて組み付けられた混合弁ユニット５６により、温調ハンドル２２の操作により設定された比率で混合されて設定温度の混合水とされ、続いて同じく内ハウジング３２の内部に軸方向に挿入されて組み付けられた切替弁ユニット５８による流路切替えによって、図１の吐水管１６側又はシャワー側へと案内されて、そこから外部に流出せしめられる。   Then, the water and hot water flowing into the inner housing 32 are operated by operating the temperature control handle 22 by the mixing valve unit 56 inserted and assembled in the inner direction of the inner housing 32 as shown in FIG. The water discharge pipe shown in FIG. 1 is obtained by switching the flow path by the switching valve unit 58 which is mixed in the ratio set by the above and made into the mixed water of the set temperature and then inserted into the inner housing 32 in the axial direction and assembled. It is guided to the 16th side or the shower side and flows out from there.

詳しくは、図３及び図７に示しているように内ハウジング３２の軸方向中間部の下面には、内ハウジング３２内の混合水を流出させるための流出用開口（内ハウジング側通水開口）６０と、図８に示すように筒壁の外面から突出して流出用開口６０を取り囲む環状壁から成る連結口部６２が設けられている。   Specifically, as shown in FIG. 3 and FIG. 7, an outflow opening (inner housing side water passage opening) for allowing the mixed water in the inner housing 32 to flow out on the lower surface of the axially intermediate portion of the inner housing 32. As shown in FIG. 8, there is provided a connecting port portion 62 formed of an annular wall that protrudes from the outer surface of the cylindrical wall and surrounds the outflow opening 60.

一方外ハウジング３０側には、流出用開口６０及び連結口部６２に対し径方向に対向する位置に、混合水を外部に流出させる流出用開口（外ハウジング側通水開口）６４が設けられおり、そこに流出口部６６を構成する筒形の接続部材２４８が、下部を外ハウジング３０から下向きに突出させる状態に差し込まれ、外ハウジング３０に取り付けられている。
そしてこの外ハウジング３０とは別体をなす筒形の接続部材２４８によって、内ハウジング３２側の流出用開口６０と、外ハウジング３０側の流出用開口６４とが水密に接続されている。
尚、接続部材２４８と内ハウジング３２側の流出用開口６０及び外ハウジング３０側の流出用開口６４とは、接続部材２４８の軸心周りに配置されたＯリングから成る環状のシール部材を介して水密シール状態に結合されている。
流出口部６６は、外ハウジング３０から下向きに突出しており、そしてその突出した部分に対して、図１に示す吐水管１６が締結ナット６８により回転可能にねじ結合されている。 On the other hand, on the outer housing 30 side, an outflow opening (outer housing side water-flowing opening) 64 through which the mixed water flows out is provided at a position opposed to the outflow opening 60 and the connecting port portion 62 in the radial direction. A cylindrical connection member 248 constituting the outflow port 66 is inserted into a state in which the lower part protrudes downward from the outer housing 30 and attached to the outer housing 30.
The outflow opening 60 on the inner housing 32 side and the outflow opening 64 on the outer housing 30 side are connected in a watertight manner by a cylindrical connection member 248 that is separate from the outer housing 30.
The connection member 248 and the outflow opening 60 on the inner housing 32 side and the outflow opening 64 on the outer housing 30 side are connected via an annular seal member formed of an O-ring arranged around the axis of the connection member 248. Coupled to a watertight seal.
The outflow portion 66 protrudes downward from the outer housing 30, and the water discharge pipe 16 shown in FIG. 1 is screwed to the protruding portion by a fastening nut 68 so as to be rotatable.

内ハウジング３２にはまた、軸方向のほぼ同じ位置において、図２に示しているようにシャワー側の混合水の流出用開口（内ハウジング側通水開口）７０が、筒壁を貫通して設けられており、更に内ハウジング３２には、図２及び図７に示すように筒壁の外面から環状に突出して流出用開口７０を取り囲む環状壁から成る連結口部７２が設けられている。   The inner housing 32 is also provided with a shower side mixed water outflow opening (inner housing side water passage opening) 70 penetrating the cylindrical wall at substantially the same position in the axial direction as shown in FIG. Further, as shown in FIGS. 2 and 7, the inner housing 32 is provided with a connection port portion 72 formed of an annular wall that protrudes annularly from the outer surface of the cylindrical wall and surrounds the outflow opening 70.

更にこれら流出用開口７０及び連結口部７２に対し径方向に対向する位置において、外ハウジング３０には対応する流出用開口（外ハウジング側通水開口）７４が設けられており、そして内ハウジング３２側の流出用開口７０と、外ハウジング３０側の流出用開口７４とが、流出口部７６を構成する、外ハウジング３０とは別体の筒形の接続部材２５０にて水密に接続されている。
ここで接続部材２５０は、その後部（図２中上部）を外ハウジング３０から突出させる状態に、流出用開口７４に差し込まれ、外ハウジング３０にねじ結合にて取り付けられている。
尚流出用開口６４に差し込まれ、外ハウジング３０にねじ結合されて取り付けられている点では図３及び図７の上記の流出口部６６を構成する接続部材２４８も同様である。 Further, the outer housing 30 is provided with a corresponding outflow opening (outer housing side water passage opening) 74 at a position facing the outflow opening 70 and the connecting port 72 in the radial direction, and the inner housing 32. The outflow opening 70 on the side and the outflow opening 74 on the outer housing 30 side are connected in a watertight manner by a cylindrical connecting member 250 constituting the outflow port 76 and separate from the outer housing 30. .
Here, the connecting member 250 is inserted into the outflow opening 74 so that its rear portion (upper part in FIG. 2) protrudes from the outer housing 30 and is attached to the outer housing 30 by screw connection.
The connecting member 248 that constitutes the outflow port 66 of FIGS. 3 and 7 is the same in that it is inserted into the outflow opening 64 and screwed to the outer housing 30.

接続部材２５０は、流出用開口７４に対してＯリングから成る弾性を有する環状のシール部材を介し水密に内嵌状態に嵌合（結合）しており、また先端部が流出用開口７０に対し、具体的にはこれを取り囲む連結口部７２に対し、Ｏリングから成る弾性を有する環状のシール部材を介し水密に内嵌状態に嵌合（結合）している。
このシャワー側の接続部材２５０には、シャワーエルボ２０が嵌入口部８０をシール部材を介して水密に嵌入させる状態にねじ結合されている。 The connecting member 250 is fitted (coupled) in a watertight manner in an inner fitting state with an elastic annular seal member made of an O-ring with respect to the outflow opening 74, and the tip portion thereof is connected to the outflow opening 70. Specifically, the coupling port portion 72 surrounding the coupling port portion 72 is fitted (coupled) in a watertight manner through an annular seal member having an elasticity made of an O-ring.
The shower elbow 20 is screwed to the shower-side connecting member 250 so that the fitting inlet 80 is fitted in a watertight manner through a seal member.

この実施形態において、上記吐水管１６側の外ハウジング３０の流出用開口６４及びシャワー側の流出用開口７４は、何れも外観上目立ち難い水栓本体１２の下面と背面に位置していることから、ここでは接続部材２４８及び２５０として、一部が外部に突出して流出口部６６，７６を構成するものが用いられている。   In this embodiment, the outflow opening 64 of the outer housing 30 on the side of the water discharge pipe 16 and the outflow opening 74 on the shower side are located on the lower surface and the back surface of the faucet body 12 that are not visually noticeable. Here, as the connection members 248 and 250, those that partially protrude to the outside and constitute the outlet portions 66 and 76 are used.

図３，図４の混合弁ユニット５６から図７の切替弁ユニット５８に到った混合水は、切替弁ユニット５８の流路切替作用により、内ハウジング３２側の流出用開口６０から流出口部６６内へと流出して流出口部６６の内部流路を流通した後、吐水口１６から外部に流出するか、又は同じく内ハウジング３２側の流出開口７０から流出口部７６内へと到って、その内部流路を通じた後シャワーエルボ２０を経てシャワーヘッドへと送られ、そこから外部へと流出（吐水）せしめられる。   The mixed water from the mixing valve unit 56 of FIGS. 3 and 4 to the switching valve unit 58 of FIG. 7 is discharged from the outlet 60 on the inner housing 32 side by the switching action of the switching valve unit 58. 66 flows out into the flow passage 66 and flows through the internal flow path of the outlet portion 66, and then flows out from the water outlet 16, or reaches the outlet portion 76 from the outlet opening 70 on the inner housing 32 side. Then, after passing through the internal flow path, it is sent to the shower head through the shower elbow 20, and flows out (discharges water) from there to the outside.

内ハウジング３２に設けた上記の湯流入用開口５０は、図８及び図１０に示しているように平面展開形状が周方向に長い矩形状をなしている。即ち全体として周方向に長い大きな開口をなしており、その周方向長は、後述する円筒形状の接続部材５４の内径よりも大きなものとされている。   As shown in FIGS. 8 and 10, the hot water inflow opening 50 provided in the inner housing 32 has a rectangular shape in which the flat developed shape is long in the circumferential direction. That is, a large opening is formed in the circumferential direction as a whole, and the circumferential length is larger than the inner diameter of a cylindrical connecting member 54 described later.

但し、湯流入用開口５０の位置で接続部材５４の先端を内ハウジング３２の筒壁の外面に直接当てるようにすると、湯流入用開口５０の有効な流路面積が、接続部材５４の先端で囲まれた内側の部分の面積だけとなり、必然的に湯流入用開口５０の有効面積が小さいものとなって、十分な流量を確保することが難しい。
そこでこの実施形態では、湯流入用開口５０を大きな開口となした上で、接続部材５４を次のようにして湯流入用開口５０に接続するようになしている。 However, if the front end of the connection member 54 is directly applied to the outer surface of the cylindrical wall of the inner housing 32 at the position of the hot water inflow opening 50, the effective flow area of the hot water inflow opening 50 is reduced at the front end of the connection member 54. It becomes only the area of the inner part enclosed, and the effective area of the hot water inflow opening 50 is inevitably small, and it is difficult to ensure a sufficient flow rate.
Therefore, in this embodiment, the hot water inflow opening 50 is made a large opening, and the connecting member 54 is connected to the hot water inflow opening 50 as follows.

即ちこの実施形態では、内ハウジング３２の筒壁の外面から環状（平面視矩形状）に突出して、湯流入用開口５０を取り囲む環状壁を設けて、これを連結口部８２と成し、そして接続部材５４の内ハウジング３２側の端部をこの連結口部８２に対して、リング状のスペーサ部材８４を介して内嵌させるようにしている。そしてこのようにすることで、接続部材５４の内ハウジング３２側の端部及びスペーサ部材８４と、内ハウジング３２の筒壁外面との間にスペース形成するようになしている。   That is, in this embodiment, an annular wall projecting from the outer surface of the cylindrical wall of the inner housing 32 (rectangular shape in plan view) and surrounding the hot water inflow opening 50 is provided, and this is formed as a connecting port portion 82, and An end of the connection member 54 on the inner housing 32 side is fitted into the connection port portion 82 via a ring-shaped spacer member 84. By doing so, a space is formed between the end of the connection member 54 on the inner housing 32 side and the spacer member 84 and the outer surface of the cylindrical wall of the inner housing 32.

詳しくは、図１１に示しているように連結口部８２には周方向両端の付根位置に段付部８６を設けて、そこにリング状のスペーサ部材８４を当接させる状態に、スペーサ部材８４を連結口部８２に対して内嵌状態に嵌合させ、更にそのスペーサ部材８４に対し、円筒形状をなす接続部材５４の先端部を同じく内嵌状態に嵌合させることにより、それら接続部材５４及びスペーサ部材８４と内ハウジング３２の筒壁外面との間にスペース形成する状態に、接続部材５４を組み付け、以て内ハウジング側通水開口としての湯流入用開口５０と外ハウジング側通水開口としての湯流入用開口５２とを、スペーサ部材８４及び連結口部８２を介して接続部材５４にて水密に接続するようになしている。
尚、周方向長の長い上記の湯流入用開口５０は、図１１に示しているように連結口部８２に到るまで周方向に延びている。 Specifically, as shown in FIG. 11, the connection port portion 82 is provided with stepped portions 86 at the root positions at both ends in the circumferential direction, and the spacer member 84 is brought into contact with the ring-shaped spacer member 84. Are fitted into the coupling port portion 82 in an internally fitted state, and the connecting member 54 is fitted into the spacer member 84 in the same fitted state at the tip end portion of the cylindrical connecting member 54. And the connecting member 54 is assembled in a state where a space is formed between the spacer member 84 and the outer surface of the cylindrical wall of the inner housing 32, so that the hot water inflow opening 50 as the inner housing side water passage opening and the outer housing side water passage opening. The hot water inflow opening 52 is connected in a watertight manner by the connecting member 54 via the spacer member 84 and the connecting port portion 82.
The hot water inflow opening 50 having a long circumferential length extends in the circumferential direction until reaching the connection port portion 82 as shown in FIG.

上記リング状をなすスペーサ部材８４は、図１２（Ａ）に示しているように平面視形状が４角形状で、円形の嵌合孔９９を有しており、また図１２（Ｂ）に示しているように側面視における下面形状が図中上向きに凹の湾曲形状をなしている。
更に外周面には環状溝８８を有していて、そこに弾性を有するＯリングから成るシール部材９０を保持している。
スペーサ部材８４は、その外面（外周面）をこのシール部材９０を介して連結口部８２の内面（内周面）に水密に嵌合させている。 As shown in FIG. 12A, the ring-shaped spacer member 84 has a quadrangular shape in plan view and a circular fitting hole 99, and is also shown in FIG. 12B. As shown in the figure, the shape of the bottom surface in a side view forms a curved shape that is concave upward in the figure.
Further, an annular groove 88 is provided on the outer peripheral surface, and a seal member 90 made of an elastic O-ring is held therein.
The spacer member 84 has its outer surface (outer peripheral surface) fitted in a watertight manner to the inner surface (inner peripheral surface) of the connection port portion 82 via the seal member 90.

一方円筒形状をなす接続部材５４は、図１３に示しているように軸方向の各端部の外面（外周面）に環状溝９２，９４を有していて、それら環状溝９２，９４においてＯリングから成るシール部材９６，９８を保持している。   On the other hand, as shown in FIG. 13, the connecting member 54 having a cylindrical shape has annular grooves 92 and 94 on the outer surface (outer peripheral surface) of each end portion in the axial direction. Seal members 96 and 98 made of rings are held.

接続部材５４は、Ｏリング９６を介して軸方向の端部（図１１中下端部）を、スペーサ部材８４の内面に嵌合状態に水密結合し、またＯリング９８を介しその外面を、外ハウジング３０側通水開口である湯流入用開口５２の内面に嵌合状態に水密結合し、以て外ハウジング３０側の湯流入用開口５２と、内ハウジング３２側の湯流入用開口５０とをスペーサ部材８４，連結口部８２を介して水密接続している。   The connecting member 54 is watertightly coupled to the inner surface of the spacer member 84 in the axial direction through the O-ring 96 (the lower end in FIG. 11), and the outer surface is connected to the outer surface via the O-ring 98. A hot water inflow opening 52 on the outer housing 30 side and a hot water inflow opening 50 on the inner housing 32 side are joined to the inner surface of the hot water inflow opening 52 which is a water passage opening on the housing 30 side. Water-tight connection is made through the spacer member 84 and the connection port portion 82.

即ち外ハウジング３０と内ハウジング３２との間に形成される水側流路３６を横切る状態に、湯流入用開口５２と５０とを連絡してその内部に、クランク脚２８から送られて来た湯を内ハウジング３２内に流入させるための、独立した１次側流路としての湯側流路を形成している。   That is, the hot water inflow openings 52 and 50 are communicated with each other and sent from the crank leg 28 to cross the water side flow path 36 formed between the outer housing 30 and the inner housing 32. A hot water side channel as an independent primary side channel for allowing hot water to flow into the inner housing 32 is formed.

図１１において、１００は接続部材５４を抜止状態に固定する固定クリップ（固定部材）で、図１４に示しているように全体としてＣリング状をなしていて、径方向に弾性変形能を有している。
図１１に示しているように、この実施形態ではクランク脚２８からの湯を流入させる筒状の湯流入口部５５が外ハウジング３０に一体に構成されており、上記の接続部材５４は、この湯流入口部５５の開口部からその内部に差し込まれて内ハウジング３２側の湯流入用開口５０、具体的には連結口部８２と外ハウジング３０側の湯流入用開口５２とを水密接続している。 In FIG. 11, reference numeral 100 denotes a fixing clip (fixing member) for fixing the connecting member 54 in a retaining state, as shown in FIG. 14, which is formed in a C-ring shape as a whole and has an elastic deformability in the radial direction. ing.
As shown in FIG. 11, in this embodiment, a cylindrical hot water inlet portion 55 through which hot water from the crank leg 28 flows is formed integrally with the outer housing 30, and the connecting member 54 is formed by The hot water inflow opening 50 on the inner housing 32 side, specifically, the connecting port portion 82 and the hot water inflow opening 52 on the outer housing 30 side, are inserted into the hot water inlet 55 from the opening thereof, and are watertightly connected. ing.

而して湯流入口部５５の内面には、環状の嵌込凹部１０２が設けられており、そこに固定クリップ１００を縮径状態で挿入した後これを拡径して嵌込凹部１０２に嵌め込むことで、固定クリップ１００の接続部材５４に対する当接作用により、接続部材５４が図中上向きに抜け防止されている。   Thus, an annular fitting recess 102 is provided on the inner surface of the hot water inlet 55, and after inserting the fixing clip 100 in a reduced diameter state, the diameter is expanded and fitted into the fitting recess 102. As a result, the connecting member 54 is prevented from coming out upward in the figure by the contact action of the fixing clip 100 against the connecting member 54.

このとき固定クリップ１００は、軸方向の一方の端面（図中下端面）を接続部材５４の軸方向端面に当接させ、また逆方向の端面を、嵌込凹部１０２の当接面２５２に当接させた状態となり、その当接作用によって接続部材５４を図中上下方向に位置決状態に固定する。   At this time, the fixing clip 100 abuts one end face in the axial direction (lower end face in the figure) against the end face in the axial direction of the connection member 54 and the opposite end face abuts against the abutting face 252 of the fitting recess 102. The contact member 54 is brought into contact with each other, and the contact member 54 is fixed in a position-fixed state in the vertical direction in the drawing by the contact action.

尚この実施形態においては、スペーサ部材８４の内面，流入用開口５２の内面及び嵌込凹部１０２の全体を１つの挿入穴として、そこに接続部材５４と固定クリップ１００とを内嵌状態に挿入し、そしてその挿入穴において、接続部材５４と固定クリップ１００とを軸方向に隣接して位置させ、以て固定クリップ１０２で接続部材５４を抜け防止した構造とみることができる。   In this embodiment, the entire inner surface of the spacer member 84, the inner surface of the inflow opening 52, and the fitting recess 102 are formed as one insertion hole, and the connecting member 54 and the fixing clip 100 are inserted into the inner fitting state. In the insertion hole, the connecting member 54 and the fixing clip 100 are positioned adjacent to each other in the axial direction, so that the connecting member 54 is prevented from being pulled out by the fixing clip 102.

尚図１４に示しているように、固定クリップ１００には周方向両端部且つ径方向内方への突出部に、径方向内方に凹陥した形態の凹部１０６が設けられている。
この凹部１０６は治具を係合させるための部分であって、この固定クリップ１００は、凹部１０６に治具を係合させて縮径させることで、湯流入口部５５から取出可能である。
尚接続部材５４は、これを図１１中下向きに押し込むと先端が内ハウジング３２の筒壁の外面に当接し、そこで押込量が規定される。 As shown in FIG. 14, the fixing clip 100 is provided with a concave portion 106 that is recessed inward in the radial direction at both ends in the circumferential direction and radially inwardly protruding portions.
The concave portion 106 is a portion for engaging a jig, and the fixing clip 100 can be taken out from the hot water inlet portion 55 by engaging the concave portion 106 with the jig and reducing the diameter.
When the connecting member 54 is pushed downward in FIG. 11, the tip abuts against the outer surface of the cylindrical wall of the inner housing 32, and the pushing amount is defined there.

図１５及び図１０は、図１１におけるスペーサ部材８４，接続部材５４及び固定クリップ１００等の組付けの手順を示している。
図に示しているように、ここでは先ず内ハウジング３２を外ハウジング３０に挿入する前において、連結口部８２にスペーサ部材８４を内嵌状態に装着してそこに保持させておく。
そしてその状態で、図１０（Ａ）に示しているように内ハウジング３２を外ハウジング３０の内部に軸方向に挿入する。図１５（III）はこのときの状態を表している。 15 and 10 show a procedure for assembling the spacer member 84, the connecting member 54, the fixing clip 100, etc. in FIG.
As shown in the figure, here, before the inner housing 32 is inserted into the outer housing 30, the spacer member 84 is fitted into the connecting port portion 82 and held therein.
In this state, the inner housing 32 is inserted into the outer housing 30 in the axial direction as shown in FIG. FIG. 15 (III) shows the state at this time.

その後、図１０（Ａ）に示しているように先ず接続部材５４を外ハウジング３０における湯流入口部５５の内部に差し込み、しかる後、固定クリップ１００を縮径変形させた状態で同じく湯流入口部５５内部に押し込み、これを湯流入口部５５内部の嵌込凹部１０２に嵌め込む。
このとき固定クリップ１００は蓄えられていた弾性力で拡径して嵌込凹部１０２に嵌り込み、接続部材５４の図中上向きの抜けを防止する。
即ち接続部材５４をその軸方向に固定状態とする。 Thereafter, as shown in FIG. 10 (A), the connecting member 54 is first inserted into the hot water inlet 55 in the outer housing 30 and then the hot water inlet is also used in a state where the fixing clip 100 is deformed in a reduced diameter. It is pushed into the portion 55 and fitted into the fitting recess 102 inside the hot water inlet portion 55.
At this time, the fixing clip 100 is expanded in diameter by the stored elastic force and fitted into the fitting recess 102, thereby preventing the connecting member 54 from coming out upward in the drawing.
That is, the connecting member 54 is fixed in the axial direction.

本実施形態においては、図２及び図１１における接続部材５４によって、外ハウジング３０の湯流入用開口５２と連結口部８２、つまり内ハウジング３２の湯流入用開口５０が接続されることで、また図７に示す内ハウジング３２側の混合水の流出用開口６０と外ハウジング３０側の流出用開口６４とが、接続部材を兼ねた流出口部６６にて接続されることで、更には図２に示すように混合水を流出させる内ハウジング３２側の流出用開口７０と外ハウジング３０の流出用開口７４とが、接続部材を兼ねた流出口部７６にて接続されることで、外ハウジング３０と内ハウジング３２とが固定状態とされる。   In this embodiment, the connecting member 54 in FIGS. 2 and 11 connects the hot water inflow opening 52 of the outer housing 30 and the connecting port portion 82, that is, the hot water inflow opening 50 of the inner housing 32, The outlet 60 for mixed water on the side of the inner housing 32 shown in FIG. 7 and the outlet 64 for outlet on the side of the outer housing 30 are connected by an outlet 66 that also serves as a connecting member. As shown in FIG. 5, the outflow opening 70 on the inner housing 32 side through which the mixed water flows out and the outflow opening 74 of the outer housing 30 are connected by an outflow port 76 that also serves as a connecting member, so that the outer housing 30 And the inner housing 32 are fixed.

図３における上記の混合弁ユニット５６が、周辺部とともに図４に拡大して詳しく示してあり、また切替弁ユニット５８が周辺部とともに図７に拡大して詳しく示してある。
本実施形態の混合弁ユニット５６はサーモスタット式（自動温度調節機能付）のもので、弁ケース１１２を有しており、その弁ケース１１２ごと、上記の内ハウジング３２の内部に軸方向に挿入されて組み付けられている。 The above-described mixing valve unit 56 in FIG. 3 is shown in detail in FIG. 4 together with the peripheral part, and the switching valve unit 58 is shown in detail in FIG. 7 together with the peripheral part.
The mixing valve unit 56 of this embodiment is of a thermostat type (with an automatic temperature control function), and has a valve case 112. The valve case 112 is inserted into the inner housing 32 in the axial direction together with the valve case 112. Are assembled.

図４において、１１０は段付きの円筒形状をなす固定ナットで、内ハウジング３２内部に挿入された混合弁ユニット５６は、この固定ナット１１０を内ハウジング３２の端部にねじ結合することで、内ハウジング３２から抜止めされ、内ハウジング３２内部に固定される。   In FIG. 4, reference numeral 110 denotes a fixed nut having a stepped cylindrical shape, and the mixing valve unit 56 inserted into the inner housing 32 is connected to the end of the inner housing 32 by screwing. It is secured from the housing 32 and fixed inside the inner housing 32.

弁ケース１１２には、軸方向に互いに離隔した位置に水流入口１１６，湯流入口１１８が形成されており、これら水流入口１１６，湯流入口１１８を通じて水，湯が弁ケース１１２内部に流入する。
流入した水と湯とは混合室１２０で混合された後、その混合水が流出口１２２から図中右向きに流出する。 A water inlet 116 and a hot water inlet 118 are formed in the valve case 112 at positions separated from each other in the axial direction, and water and hot water flow into the valve case 112 through the water inlet 116 and the hot water inlet 118.
The inflowing water and hot water are mixed in the mixing chamber 120, and then the mixed water flows out from the outlet 122 to the right in the figure.

１２４，１２６はそれぞれ水流入口１１６，湯流入口１１８から流入する水，湯の流入量を調節する水側弁部，湯側弁部で、水流入口１１６，湯流入口１１８からの水と湯の流入量は、それぞれ水側弁部１２４，湯側弁部１２６の弁開度に応じて大小変化する。即ち混合室１２０での水と湯との混合比率が変化し、混合水温度が高低変化する。   Reference numerals 124 and 126 denote water flowing in from the water inlet 116 and the hot water inlet 118, a water side valve portion for adjusting the inflow amount of hot water, and a hot water side valve portion, respectively. The amount of inflow changes depending on the valve opening degree of the water side valve portion 124 and the hot water side valve portion 126, respectively. That is, the mixing ratio of water and hot water in the mixing chamber 120 changes, and the temperature of the mixed water changes.

弁ケース１１２の内部には、弁体ユニット１２８が図中左右方向（軸方向）に移動可能に設けられている。
この弁体ユニット１２８は、軸方向に離隔して設けられた水側弁体１３０と湯側弁体１３２、及びそれらを軸方向に連繋する連繋部１３４を有している。 A valve body unit 128 is provided inside the valve case 112 so as to be movable in the left-right direction (axial direction) in the figure.
The valve body unit 128 includes a water side valve body 130 and a hot water side valve body 132 which are provided separately in the axial direction, and a connecting portion 134 which connects them in the axial direction.

ここで水側弁体１３０及び湯側弁体１３２はそれぞれ円筒形状（環状）をなしており、それぞれの外周面の軸方向中間位置に断面Ｕ字形状をなすシール部材１３６，１３８が保持されていて、それらシール部材１３６，１３８により水側弁体１３０及び湯側弁体１３２と弁ケース１１２との間が水密にシールされている。   Here, each of the water side valve body 130 and the hot water side valve body 132 has a cylindrical shape (annular shape), and seal members 136 and 138 having a U-shaped cross section are held at axially intermediate positions of the respective outer peripheral surfaces. The seal members 136 and 138 seal the water side valve body 130 and the hot water side valve body 132 and the valve case 112 in a watertight manner.

連繋部１３４は湯側弁体１３２と一体に構成されている。
この連繋部１３４は、図５にも示しているように湯側弁体１３２の内側位置において十字状をなすように中心部から放射状に延びる複数（ここでは４つ）の補強板１４０と、この補強板１４０から軸方向且つ図中右方向に突き出した円筒部１４２とを一体に有している。
ここで補強板１４０は湯側弁体１３２を内側から補強する働きをなすもので、板面が軸方向に延びており、そして外周端が湯側弁体１３２に一体化されている。
この実施形態では、水流入口１１６，湯流入口１１８から流入した水と湯とが図中右向きに流れて混合室１２０に到り、そこで水と湯とが混合される。 The connecting portion 134 is configured integrally with the hot water side valve body 132.
As shown in FIG. 5, the connecting portion 134 includes a plurality (four in this case) of reinforcing plates 140 that extend radially from the central portion so as to form a cross at the inner position of the hot water valve body 132. It integrally has a cylindrical portion 142 protruding from the reinforcing plate 140 in the axial direction and rightward in the drawing.
Here, the reinforcing plate 140 serves to reinforce the hot water side valve body 132 from the inside, the plate surface extends in the axial direction, and the outer peripheral end is integrated with the hot water side valve body 132.
In this embodiment, water and hot water flowing in from the water inlet 116 and the hot water inlet 118 flow to the right in the figure and reach the mixing chamber 120 where the water and hot water are mixed.

混合室１２０には、形状記憶合金製のコイル形状の感温ばね（付勢部材）１４４が収容されており、その付勢力を軸方向の押圧力として弁体ユニット１２８に対し図中左向きに、即ち湯側弁体１３２を閉弁させ、水側弁体１３０を開弁させる方向に及ぼしている。
この形状記憶合金製の感温ばね１４４は混合室１２０内部の混合水温度に応じて伸縮し、混合水温度が設定温度となるように図中左向きの付勢力を変化させて、弁体ユニット１２８の位置を自動的に微調節する。 The mixing chamber 120 accommodates a coil-shaped temperature-sensitive spring (biasing member) 144 made of a shape memory alloy, and the biasing force is used as a pressing force in the axial direction toward the left in the figure with respect to the valve body unit 128. That is, the hot water side valve body 132 is closed and the water side valve body 130 is opened.
The temperature sensitive spring 144 made of this shape memory alloy expands and contracts according to the mixed water temperature inside the mixing chamber 120, and changes the urging force in the left direction in the figure so that the mixed water temperature becomes the set temperature, so that the valve body unit 128 is changed. Automatically fine-tunes the position of.

１４６は混合室１２０を形成するとともに感温ばね１４４の一端を当接させるばね受で、図中左端に外向きの係合爪１４８を有し、その係合爪１４８を弁ケース１１２の係合孔１５０に係合させることで、弁ケース１１２に組み付けられている。   Reference numeral 146 denotes a spring receiver that forms the mixing chamber 120 and contacts one end of the temperature-sensitive spring 144, and has an outward engaging claw 148 at the left end in the figure, and the engaging claw 148 is engaged with the valve case 112. The valve case 112 is assembled by engaging with the hole 150.

上記水側弁体１３０は、湯側弁体１３２及び連繋部１３４とは別体に構成されている。
この水側弁体１３０には、図５にも明らかに示しているように内側が段付形状をなす円筒形状の嵌合部１５２が形成されており、その嵌合部１５２が、段付部１５４を円筒部１４２の先端面に当接させる状態に、円筒部１４２に外嵌状態に嵌合され組み付けられている。
詳しくは、円筒部１４２の内側には雌ねじ部１５６が形成されていて、そこに後述の弁軸２０６の先端部に形成された雄ねじ部１５８がねじ込まれている。 The water side valve body 130 is configured separately from the hot water side valve body 132 and the connecting portion 134.
As clearly shown in FIG. 5, the water-side valve body 130 is formed with a cylindrical fitting portion 152 having a stepped shape on the inner side, and the fitting portion 152 is a stepped portion. The cylindrical portion 142 is fitted and assembled to the cylindrical portion 142 in a state where 154 is brought into contact with the tip end surface of the cylindrical portion 142.
Specifically, an internal thread portion 156 is formed inside the cylindrical portion 142, and an external thread portion 158 formed at a distal end portion of a valve shaft 206 described later is screwed therein.

この弁軸２０６には押え部材としての止め輪１６０が装着されており、弁軸２０６の雄ねじ部１５８が円筒部１４２の内側の雌ねじ部１５６にねじ込まれることで、水側弁体１３０が止め輪１６０にてばね１６２を介し円筒部１４２に図中右向きに押し付けられ、連繋部１３４に組付固定されている。
ここでばね１６２は通常の金属製でコイル形状をなしている。 A retaining ring 160 as a pressing member is attached to the valve shaft 206, and the male threaded portion 158 of the valve shaft 206 is screwed into the female threaded portion 156 inside the cylindrical portion 142, so that the water-side valve body 130 is retained by the retaining ring. At 160, it is pressed rightward in the figure against the cylindrical portion 142 via the spring 162, and is assembled and fixed to the connecting portion 134.
Here, the spring 162 is made of a normal metal and has a coil shape.

図４に示しているように弁ケース１１２には、水側弁体１３０，湯側弁体１３２のそれぞれの軸方向の内側位置に、水側弁部１２４における水側弁座１６４，湯側弁部１２６における湯側弁座１６６が設けられており、それらに対し水側弁体１３０，湯側弁体１３２が軸方向に当接するようになっている。
詳しくは水側弁座１６４，湯側弁座１６６におけるそれぞれの弁座面１６８，１７０に対して水側弁体１３０，湯側弁体１３２が当接するようになっている。 As shown in FIG. 4, the valve case 112 has a water side valve seat 164 and a hot water side valve in the water side valve portion 124 at the inner positions of the water side valve body 130 and the hot water side valve body 132 in the axial direction. The hot water side valve seat 166 in the part 126 is provided, and the water side valve body 130 and the hot water side valve body 132 abut against them in the axial direction.
Specifically, the water side valve body 130 and the hot water side valve body 132 are brought into contact with the valve seat surfaces 168 and 170 of the water side valve seat 164 and the hot water side valve seat 166, respectively.

この実施形態において、弁体ユニット１２８は通常の金属製のコイルばねから成るバイアスばね（付勢部材）１７２にて図中右向き、即ち湯側弁体１３２を開弁させ、水側弁体１３０を閉弁させる方向に付勢（押圧）されており、また混合室１２０内に設けられた感温ばね１４４にてこれとは逆方向の図中左向き、即ち湯側弁体１３２を閉弁させ、水側弁体１３０を開弁させる方向に付勢されている。
弁体ユニット１２８は、感温ばね１４４による図中左向きの付勢力と、バイアスばね１７２による図中右向きの付勢力とが釣合う位置に保持される。 In this embodiment, the valve body unit 128 is directed rightward in the figure by a bias spring (biasing member) 172 made of a normal metal coil spring, that is, the hot water valve body 132 is opened, and the water side valve body 130 is opened. The valve is urged (pressed) in the direction to close the valve, and the temperature-sensitive spring 144 provided in the mixing chamber 120 is closed in the opposite direction to the left in the drawing, that is, the hot water side valve body 132 is closed. The water side valve body 130 is urged in the direction to open the valve.
The valve body unit 128 is held at a position where the leftward biasing force in the figure by the temperature-sensitive spring 144 and the rightward biasing force in the figure by the bias spring 172 balance.

図４に示しているように、弁ケース１１２には回転操作軸１７４が組み付けられている。
この回転操作軸１７４は、弁体ユニット１２８を弁ケース１１２の内部で軸方向、即ち図中左右方向に移動させて混合水温度を設定操作するためのもので、嵌合軸部１７６と、ハンドル連結部１７８とを有しており、その嵌合軸部１７６が弁ケース１１２の嵌合孔１８０に回転可能に内嵌されている。
ここで嵌合軸部１７６と弁ケース１１２の嵌合孔１８０との間はＯリング１８２にて水密にシールされている。
また弁ケース１１２から軸方向の左方に突き出したハンドル連結部１７８には、セレーション部１８４において温調ハンドル２２が一体回転状態に連結されるようになっている。 As shown in FIG. 4, a rotation operation shaft 174 is assembled to the valve case 112.
The rotary operation shaft 174 is used to set the mixed water temperature by moving the valve body unit 128 in the valve case 112 in the axial direction, that is, in the horizontal direction in the figure. The fitting shaft 176 is rotatably fitted in the fitting hole 180 of the valve case 112.
Here, a space between the fitting shaft portion 176 and the fitting hole 180 of the valve case 112 is water-tightly sealed with an O-ring 182.
In addition, the temperature adjusting handle 22 is connected to the handle connecting portion 178 protruding leftward in the axial direction from the valve case 112 in the serration portion 184 in an integrally rotated state.

回転操作軸１７４は、弁ケース１１２の内部において大径の円筒部１８５を有しており、その円筒部１８５の図中左端の肩部と、回転操作軸１７４に装着された径方向に弾性を有する止め輪１８６にて、弁ケース１１２に軸方向に固定されている。
この円筒部１８５の内周面には雌ねじ部１８８が形成され、そこに円筒形状をなす駆動部材１９０が、外周面の雄ねじ部１９２において螺合されている。
この駆動部材１９０は、回転操作軸１７４の回転操作によってねじ送りで軸方向即ち図中左右方向に進退移動させられる。 The rotary operation shaft 174 has a large-diameter cylindrical portion 185 inside the valve case 112, and is elastic in the radial direction attached to the leftmost shoulder portion of the cylindrical portion 185 in the drawing and the rotary operation shaft 174. A retaining ring 186 is fixed to the valve case 112 in the axial direction.
A female screw portion 188 is formed on the inner peripheral surface of the cylindrical portion 185, and a cylindrical driving member 190 is screwed to the male screw portion 192 on the outer peripheral surface.
The drive member 190 is moved forward and backward in the axial direction, that is, the left-right direction in the figure by screw feed by the rotation operation of the rotation operation shaft 174.

この駆動部材１９０と弁体ユニット１２８との間には、ストッパリング１９４，ばね受１９６を介して通常の金属製のコイルばねからなる上記のバイアスばね１７２が介在させられており、バイアスばね１７２の図中右向きの付勢力が弁体ユニット１２８に対し図中右向きに及ぼされている。
尚、ばね受１９６には図中右端と左端とに内向きのフランジ部１９８，２００が設けられている。 Between the drive member 190 and the valve body unit 128, the above-described bias spring 172 made of a normal metal coil spring is interposed via a stopper ring 194 and a spring receiver 196. A rightward biasing force in the drawing is exerted to the valve body unit 128 in the rightward direction in the drawing.
The spring receiver 196 is provided with inward flange portions 198 and 200 at the right end and the left end in the drawing.

一方、駆動部材１９０の図中右端には外向きのフランジ部２０２が設けられ、この外向きのフランジ部２０２が、一対のフランジ部１９８，２００の間においてばね受１９６内部を図中左右方向に相対移動可能とされている。
また駆動部材１９０には、内向きに突出した段付部２０４が図中左端に設けられていて、そこにストッパリング１９４が図中右向きに当接させられている。 On the other hand, an outward flange portion 202 is provided at the right end of the drive member 190 in the drawing, and the outward flange portion 202 is arranged between the pair of flange portions 198 and 200 in the left-right direction in the drawing. Relative movement is possible.
Further, the drive member 190 is provided with a stepped portion 204 that protrudes inward at the left end in the figure, and a stopper ring 194 is brought into contact with the right side in the figure.

上記のように弁体ユニット１２８からは図中左向きに弁軸２０６が延び出している。
弁軸２０６の左端側はストッパリング１９４を貫通して図中左向きに突出しており、その突出した端部に、ストッパリング１９４の内径よりも大径の頭部２０８が設けられている。
この頭部２０８には、弁軸２０６における上記の雄ねじ部１５８を連繋部１３４の雌ねじ部１５６にねじ込む際に工具掛け部となる係合溝が形成されている。 As described above, the valve shaft 206 extends leftward from the valve body unit 128 in the drawing.
The left end side of the valve shaft 206 passes through the stopper ring 194 and protrudes leftward in the figure, and a head 208 having a diameter larger than the inner diameter of the stopper ring 194 is provided at the protruding end.
The head 208 is formed with an engaging groove that becomes a tool hook when the male threaded portion 158 of the valve shaft 206 is screwed into the female threaded portion 156 of the connecting portion 134.

この実施形態では、回転操作軸１７４を正方向に回転操作すると、駆動部材１９０がねじ送り作用で図中右向きに前進させられ、これによりストッパリング１９４を介してバイアスばね１７２が圧縮せしめられ、弁体ユニット１２８に対する図中右向きの付勢力を増大させる。
また回転操作軸１７４を逆方向に回転操作すると、駆動部材１９０が図中左向きに後退移動させられて、バイアスばね１７２が延びる方向に変位し、弁体ユニット２８に対する図中右向きの付勢力を弱くする。 In this embodiment, when the rotary operation shaft 174 is rotated in the forward direction, the drive member 190 is advanced to the right in the drawing by a screw feed action, and thereby the bias spring 172 is compressed via the stopper ring 194, and the valve The rightward biasing force in the figure against the body unit 128 is increased.
Further, when the rotation operation shaft 174 is rotated in the reverse direction, the drive member 190 is moved backward in the left direction in the figure, and the bias spring 172 is displaced in the extending direction, thereby weakening the rightward biasing force on the valve body unit 28 in the figure. To do.

この例の混合弁ユニット５６では、このようにして回転操作軸１７４を正方向又は逆方向に回転操作することで、弁体ユニット１２８に対するバイアスばね１７２の図中右向きの付勢力と、感温ばね１４４の図中左向きの付勢力との釣合位置が図中左右方向に変化し、これに伴って弁体ユニット１２８が図中左右方向にシフトせしめられる。即ち混合弁ユニット５６における混合水の温度が設定ないし設定変更される。   In the mixing valve unit 56 of this example, by rotating the rotation operation shaft 174 in the forward direction or the reverse direction in this manner, the biasing force of the bias spring 172 in the right direction in FIG. The balance position with the leftward biasing force 144 in the drawing changes in the horizontal direction in the drawing, and the valve body unit 128 is shifted in the horizontal direction in the drawing accordingly. That is, the temperature of the mixed water in the mixing valve unit 56 is set or changed.

この混合弁ユニット５６では、弁体ユニット１２８が図中右向きに一杯まで移動して水側弁体１３０が水側弁座１６４の弁座面１６８に当接することで水流入口１１６が全閉、湯流入口１１８が全開となり、弁体ユニット１２８が逆方向に一杯まで移動して湯側弁体１３２が湯側弁座１６６の弁座面１７０に当接することで湯流入口１１８が全閉、水流入口１１６が全開状態となる。
またそれらの中間位置において水流入口１１６及び湯流入口１１８を開き、且つその開度を感温ばね１４４の温度感知に基づいて自動的に変化させ、水，湯の流入量を変化させて混合水温度を自動的に設定温度に調節する。 In the mixing valve unit 56, the valve body unit 128 moves to the right in the drawing to the full position and the water side valve body 130 comes into contact with the valve seat surface 168 of the water side valve seat 164, so that the water inlet 116 is fully closed. The inflow port 118 is fully opened, the valve body unit 128 is moved in the reverse direction to the full position, and the hot water side valve body 132 comes into contact with the valve seat surface 170 of the hot water side valve seat 166, so that the hot water inflow port 118 is fully closed. The inlet 116 is fully opened.
Further, the water inlet 116 and the hot water inlet 118 are opened at an intermediate position between them, and the opening degree thereof is automatically changed based on the temperature sensing of the temperature sensing spring 144 to change the inflow amount of water and hot water. The temperature is automatically adjusted to the set temperature.

図６は、上記の混合弁ユニット５６と温調ハンドル２２との組付構造を示している。
図示のように温調ハンドル２２には、内周面に雌セレーション部を有するセレーション部材２１２が一体回転状態に装着されており、このセレーション部材２１２が、混合弁ユニット５６における上記のセレーション部１８４、詳しくは雄セレーション部にセレーション結合されることで、温調ハンドル２２が混合弁ユニット５６における回転操作軸１７４に一体回転状態に連結されている。 FIG. 6 shows an assembly structure of the mixing valve unit 56 and the temperature control handle 22 described above.
As shown in the figure, a serration member 212 having a female serration portion on the inner peripheral surface is attached to the temperature control handle 22 in an integrally rotating state, and the serration member 212 is connected to the serration portion 184 in the mixing valve unit 56, Specifically, the temperature control handle 22 is connected to the rotary operation shaft 174 in the mixing valve unit 56 in an integrally rotated state by being serrated to the male serration portion.

２１４は、温調ハンドル２２に備えられた安全ボタンで、ばね２１６により図中上向きの外向きに突出する側に付勢されている。
この安全ボタン２１４には、後述のストッパ部材２２０におけるストッパ部２２４，２２６に当接する当接部２１８が備えられている。
２２０は、この当接部２１８を当接させることによって温調ハンドル２２の回転規制をなすストッパ部材で、２２２はストッパ部材２２０を内ハウジング３２に取り付けるための取付部材である。 A safety button 214 is provided on the temperature control handle 22 and is urged by a spring 216 to protrude upward in the figure.
The safety button 214 is provided with a contact portion 218 that comes into contact with stopper portions 224 and 226 of a stopper member 220 described later.
Reference numeral 220 denotes a stopper member that restricts the rotation of the temperature adjustment handle 22 by abutting the abutting portion 218, and 222 is an attachment member for attaching the stopper member 220 to the inner housing 32.

この実施形態では、温調ハンドル２２を高温側に回転させると、あるところで安全ボタン２１４の当接部２１８が、ストッパ部材２２０の第１ストッパ部２２４に当接するに到る。ここにおいて温調ハンドル２２が、より高温側に回転操作されるのが規制される。   In this embodiment, when the temperature control handle 22 is rotated to the high temperature side, the contact portion 218 of the safety button 214 comes into contact with the first stopper portion 224 of the stopper member 220 at a certain point. Here, the temperature control handle 22 is restricted from being rotated to a higher temperature side.

この段階で使用者が更に混合水の温度を高温側に設定変更したいときは、安全ボタン２１４をばね２１６の付勢力に抗して図中下向き（内向き）に押すと、当接部２１８と第１ストッパ部２２４との当接が解除され、ここにおいて温調ハンドル２２が更なる高温側に回転操作可能となる。
そしてその状態で一杯まで温調ハンドル２２を高温側に回転操作すると、最終的に第２ストッパ部２２６に対して当接部２１８が当接し、それ以上の回転操作が禁止される。 At this stage, when the user wants to further change the temperature of the mixed water to the high temperature side, when the safety button 214 is pushed downward (inward) in the figure against the urging force of the spring 216, the contact portion 218 and The contact with the first stopper portion 224 is released, and the temperature control handle 22 can be rotated further to the higher temperature side.
In this state, when the temperature adjustment handle 22 is rotated to the high temperature side to the full, the contact portion 218 finally comes into contact with the second stopper portion 226, and further rotation operation is prohibited.

図７に示すように、本実施形態において切替弁ユニット５８はシリンダ式の弁体ユニットであって、切替ハンドル２４と一体回転する回転操作軸２２８と、回転操作軸２２８に対し同じく一体回転状態に連結されたシリンダ弁体２３０及び弁ケース２３２を備えて構成されている。   As shown in FIG. 7, in the present embodiment, the switching valve unit 58 is a cylinder-type valve body unit, and the rotation operation shaft 228 that rotates integrally with the switching handle 24 and the rotation operation shaft 228 are also integrally rotated. The cylinder valve body 230 and the valve case 232 are connected to each other.

弁ケース２３２は、シリンダ弁体２３０に直接嵌合してこれを保持するインナケース２３４と、インナケース２３４の外側のアウタケース２３６とを有しており、そのアウタケース２３６が、内ハウジング３２の内部に軸方向に挿入され、組み付けられている。   The valve case 232 includes an inner case 234 that directly fits and holds the cylinder valve body 230, and an outer case 236 outside the inner case 234, and the outer case 236 is formed on the inner housing 32. It is inserted and assembled in the axial direction inside.

弁ケース２３２は、更にアウタケース２３６の回止めをなす回止め部材２３８を有しており、その回止め部材２３８の部分において、固定ナット２４０により内ハウジング３２の端部に回止め状態に固定されている。
シリンダ弁体２３０には、送られて来た混合水を吐水管１６側に流出させる開口２４２と、シャワー側に流出させる開口２４４とが設けられている。 The valve case 232 further includes a rotation stop member 238 that prevents the outer case 236 from rotating. The rotation stop member 238 is fixed to the end of the inner housing 32 by a fixing nut 240. ing.
The cylinder valve body 230 is provided with an opening 242 for flowing the supplied mixed water to the discharge pipe 16 side and an opening 244 for flowing it to the shower side.

一方弁ケース２３２は、開口２４２に対応する開口２４６と、開口２４４に対応する図示を省略する開口とを備えており、切替ハンドル２４にてシリンダ弁体２３０を回転させ、開口２４２を弁ケース２３２の開口２４６に合致させた状態の下では、混合水を開口２４２，２４６から流出させて、これを内ハウジング３２の流出用開口６０へと流動させる。
流出用開口６０に到った混合水は、先に述べたように吐水管１６へと流れ込んで、先端の吐水口１４から外部に流出（吐水）する。 On the other hand, the valve case 232 includes an opening 246 corresponding to the opening 242 and an opening (not shown) corresponding to the opening 244, and the cylinder valve body 230 is rotated by the switching handle 24, so that the opening 242 becomes the valve case 232. Under the condition of matching with the opening 246, the mixed water flows out from the openings 242 and 246 and flows into the outflow opening 60 of the inner housing 32.
The mixed water reaching the outflow opening 60 flows into the water discharge pipe 16 as described above, and flows out (discharges water) from the water discharge port 14 at the tip.

一方シリンダ弁体２３０の開口２４４を、図示を省略する弁ケース２３２の別の開口に合致させると（このとき開口２４２は開口２４６に対して不一致の状態にあって、開口２４２は閉鎖された状態にある）、開口２４４から流出した混合水が、シャワー側の流出口部７６へと流れ込んでシャワーヘッドへと送られ、そこからシャワー吐水される。   On the other hand, when the opening 244 of the cylinder valve body 230 is matched with another opening of the valve case 232 (not shown) (the opening 242 is in a state of mismatch with the opening 246, the opening 242 is closed). The mixed water flowing out from the opening 244 flows into the outlet 76 on the shower side, is sent to the shower head, and is discharged from there.

以上のような本実施形態によれば、外ハウジング側通水開口としての湯流入用開口５２と内ハウジング側通水開口としての湯流入用開口５０とを接続する接続部材５４が、外ハウジング３０の内側に内蔵されているため、接続部材５４が外ハウジング３０から外部に突出して、そこに継目を形成する等して水栓の外観を損ねる問題を生じず、水栓を良好な外観で構成することができる。
また接続部材５４は外観に現れないため、接続部材５４をメッキ仕上げするなどの外観仕上げの処理を不要化でき、コストを安価とすることができる。
更にその接続部材５４は直接ホースや給水管等の外部配管や管体とは接続されないため、接続部材５４には大きな荷重はかからず、従って強度も要求されないため、接続構造を安価に構成することができる。 According to the present embodiment as described above, the connecting member 54 that connects the hot water inflow opening 52 as the outer housing side water passage opening and the hot water inflow opening 50 as the inner housing side water passage opening is provided on the outer housing 30. Since the connection member 54 protrudes from the outer housing 30 to the outside and forms a seam there, there is no problem of damaging the appearance of the faucet, and the faucet is configured with a good appearance. can do.
Further, since the connection member 54 does not appear on the appearance, it is possible to eliminate the appearance finishing process such as plating the connection member 54, and the cost can be reduced.
Furthermore, since the connecting member 54 is not directly connected to an external pipe or pipe body such as a hose or a water supply pipe, the connecting member 54 is not subjected to a large load, and therefore the strength is not required. be able to.

また本実施形態では、接続部材５４をこれとは別体の固定クリップ１００にて軸方向に固定する構造となしてあるため、接続部材５４及び固定クリップ１００の何れもを外ハウジング３０の内側に内蔵させているにも拘らず、接続部材５４による外ハウジング３０の湯流出用開口５２と内ハウジング３２の湯流入用開口５０との接続を容易に行うことができ、且つ接続部材５４の固定自体も容易に行うことができる。
具体的には、接続部材５４とは別体の固定クリップ１００を所定位置に装着することで、接続部材５４を固定クリップとともに固定状態となすことができる。 In the present embodiment, since the connection member 54 is fixed in the axial direction by a separate fixing clip 100, both the connection member 54 and the fixing clip 100 are placed inside the outer housing 30. Despite being built in, the connection member 54 can easily connect the hot water outflow opening 52 of the outer housing 30 and the hot water inflow opening 50 of the inner housing 32, and the connection member 54 can be fixed itself. Can also be done easily.
Specifically, by attaching the fixing clip 100 separate from the connecting member 54 at a predetermined position, the connecting member 54 can be brought into a fixed state together with the fixing clip.

図１６〜図２１は、本発明の他の実施形態を示している。
図１６に示しているように、この実施形態では金属製の外ハウジング３０に、吐水口１４を備えた吐水口部（混合水の流出口部）２６０が、外ハウジング３０の軸方向中間位置且つその前面に一体に構成されている。 16 to 21 show another embodiment of the present invention.
As shown in FIG. 16, in this embodiment, in the metal outer housing 30, a water discharge port portion (mixed water outlet port portion) 260 provided with the water discharge port 14 is positioned at an intermediate position in the axial direction of the outer housing 30. It is configured integrally with the front surface.

図１７に示しているように、内ハウジング３２における混合水の流出用開口６０は、ここでは上記実施形態のように下向きではなく前方向きをなしていて、この流出用開口６０が、シャワー側の流出用開口７０に対し１８０°異なった向きをなしている。
そしてこの内ハウジング３２側の流出用開口６０と、外ハウジング３０側の対応する流出用開口６４とが、接続部材２６２にて水密に接続されている。 As shown in FIG. 17, the outflow opening 60 for the mixed water in the inner housing 32 is directed downward rather than downward as in the above embodiment, and the outflow opening 60 is on the shower side. The direction is 180 ° different from the outflow opening 70.
The outflow opening 60 on the inner housing 32 side and the corresponding outflow opening 64 on the outer housing 30 side are watertightly connected by a connecting member 262.

具体的には、接続部材２６２の図中左端部が、外ハウジング３０側の流出用開口６４に対して、シール部材を介し水密に嵌合せしめられており、また右端部が、内ハウジング３２側の流出用開口６０を取り囲む連結口部６２に対して、シール部材を介し水密嵌合させられ、以てそれら内ハウジング３２側の流出用開口６０と、外ハウジング３０側の流出用開口６４とが、接続部材２６２にて水密に連絡されている。
この実施形態においても、接続部材２６２と固定クリップ（固定部材）２６４とが、外ハウジング３０の内側に形成された挿入穴２６６に対し内嵌状態に軸方向に挿入されている。 Specifically, the left end portion of the connection member 262 in the drawing is fitted in a watertight manner to the outflow opening 64 on the outer housing 30 side through a seal member, and the right end portion is on the inner housing 32 side. The connecting port portion 62 that surrounds the outflow opening 60 is water-tightly fitted through a seal member, so that the outflow opening 60 on the inner housing 32 side and the outflow opening 64 on the outer housing 30 side are provided. The connection member 262 is in watertight communication.
Also in this embodiment, the connection member 262 and the fixing clip (fixing member) 264 are axially inserted into the insertion hole 266 formed on the inner side of the outer housing 30.

ここで固定クリップ２６４は、接続部材２６２の図中左端と、これとは軸方向の反対側に位置する挿入穴２６６の段付形状の当接面２６８とに、軸方向の両端を当接させており、その当接作用によって、接続部材２６２を軸方向（図中左右方向）に位置決状態に固定している。
ここで固定クリップ２６４は、図１７（Ｂ），図１８（Ａ）に示しているようにＣリング状をなしていて径方向に弾性を有しており、その周方向の中央部と両端部とに、径方向内方に突出した係合部（第１係合部）２７０，２７２を有している。 Here, the fixing clip 264 makes both ends in the axial direction contact the left end of the connecting member 262 in the drawing and the stepped contact surface 268 of the insertion hole 266 located on the opposite side to the axial direction. The connecting member 262 is fixed in the axially positioned direction (left and right in the drawing) by the contact action.
Here, as shown in FIGS. 17B and 18A, the fixing clip 264 has a C-ring shape and is elastic in the radial direction, and has a central portion and both end portions in the circumferential direction. And engaging portions (first engaging portions) 270 and 272 projecting inward in the radial direction.

一方接続部材２６２は、図１８（Ｂ）に示しているように円筒状をなしていて、内面の形状が軸方向に沿って２段に段付形状をなしており、そして内径の最も大きな図中左端部が、固定クリップ２６４を縮径状態且つ径方向に重複した状態でこれを保持するクリップ保持部２７４とされている。
また内径の最も小さな図中右端部が、径方向内方に突出した係合部（第２係合部）２７６とされている。 On the other hand, the connection member 262 has a cylindrical shape as shown in FIG. 18B, the inner surface has a stepped shape in two steps along the axial direction, and has the largest inner diameter. The middle left end portion is a clip holding portion 274 that holds the fixed clip 264 in a reduced diameter and overlapping state in the radial direction.
Further, the right end portion in the drawing having the smallest inner diameter is an engagement portion (second engagement portion) 276 that protrudes inward in the radial direction.

図１７に示しているように、接続部材２６２及び固定クリップ２６４は、外ハウジング３０の内側に隠蔽状態に内蔵されている。
一方外ハウジング３０に一体に構成された吐水口部２６０は、水平方向前方に突出した後、真下向きに直角に折れ曲った屈曲形状をなしている。
従ってこの実施形態においては、接続部材２６２及び固定クリップ２６４を、吐水口部２６０の内部流路を通じて図１７に示す内蔵位置に挿入し、セットすることはできない。 As shown in FIG. 17, the connection member 262 and the fixing clip 264 are housed inside the outer housing 30 in a concealed state.
On the other hand, the water outlet 260 integrally formed with the outer housing 30 has a bent shape that protrudes forward in the horizontal direction and then bends right below.
Therefore, in this embodiment, the connecting member 262 and the fixing clip 264 cannot be inserted and set at the built-in position shown in FIG.

そこでこの実施形態では、外ハウジング３０側の且つ吐水口部２６０側の流出用開口６４に対して、具体的には上記の挿入穴２６６に対して、外ハウジング３０の内側空間を間にして対向した位置の、外ハウジング３０におけるシャワー側の流出用開口７４を通じて接続部材２６２及び固定クリップ２６４を、挿入穴２６６に挿入する。その具体的手順が図１９及び図２０に示してある。   Therefore, in this embodiment, the outflow opening 64 on the outer housing 30 side and the water discharge port portion 260 side is opposed to the insertion hole 266, specifically, with the inner space of the outer housing 30 in between. The connecting member 262 and the fixing clip 264 are inserted into the insertion hole 266 through the outlet opening 74 on the shower side in the outer housing 30 at the position described above. The specific procedure is shown in FIG. 19 and FIG.

ここでは図１９（Ｉ）に示しているように、先ず固定クリップ２６４を縮径変形させた状態で、接続部材２６２のクリップ保持部２７４の内側に径方向に重複状態で保持させておく。
そして内ハウジング３２を外ハウジング３０に軸方向に挿入するのに先立って、図１９（Ｉ）の接続部材２６２と固定クリップ２６４とを組付状態で、外ハウジング３０の流出用開口７４を通じて（通過して）外ハウジング３０の内側空間に挿入する。そして更に図１９（II）に示しているように、接続部材２６２の先端が挿入穴２６６の段付形状の当接面２６８に当接する位置まで上記の挿入穴２６６に軸方向に挿入する。 Here, as shown in FIG. 19 (I), first, the fixed clip 264 is deformed in a reduced diameter, and is held inside the clip holding portion 274 of the connecting member 262 in an overlapping state in the radial direction.
Before inserting the inner housing 32 into the outer housing 30 in the axial direction, the connecting member 262 and the fixing clip 264 of FIG. 19I are assembled (through the outflow opening 74 of the outer housing 30). And inserted into the inner space of the outer housing 30. Further, as shown in FIG. 19 (II), the connecting member 262 is inserted into the insertion hole 266 in the axial direction until the tip of the connection member 262 contacts the stepped contact surface 268 of the insertion hole 266.

図１９（II）に示しているように、このとき接続部材２６２は内側に固定クリップ２６４を保持していて、固定クリップ２６４を含めた全体の軸方向長は、接続部材２６２自体の軸方向長と同じとなっており、それ故先端を当接面２６８に当接させた接続部材２６２は、外ハウジング３０の内側空間には実質的に突出していない。
従ってこの状態では外ハウジング３０に対して、内ハウジング３２を支障無く軸方向に挿入することができる。図１９（III）はそのときの状態を表している。 As shown in FIG. 19 (II), at this time, the connection member 262 holds the fixing clip 264 inside, and the total axial length including the fixing clip 264 is the axial length of the connection member 262 itself. Therefore, the connection member 262 whose tip is in contact with the contact surface 268 does not substantially protrude into the inner space of the outer housing 30.
Therefore, in this state, the inner housing 32 can be inserted into the outer housing 30 in the axial direction without any trouble. FIG. 19 (III) shows the state at that time.

図２１は、図１９（II），（III）に示す状態の接続部材２６２と固定クリップ２６４とを軸方向に分離して、接続部材２６２を図中右方に挿入穴２６６から突出させるための治具２７９を表している。
同図に示しているように治具２７９は、図２１（Ｂ），（Ｃ）に示しているように、互いに逆向きに直角に折れ曲った先端の突起形状の爪２７８を備えた一対の引込用のアーム２８０を有する引込部２８２と、一対の押圧用のアーム２８４を有する押圧部２８６と、中央のブリッジ部２８８によって一対の引込用アーム２８０を互いに分離方向にガイドするガイド部２９０とを有している。
ここで一対の押圧用のアーム２８４のそれぞれの先端部には、貫通の切欠部２９２が設けられている。 FIG. 21 shows a state in which the connecting member 262 and the fixing clip 264 in the state shown in FIGS. 19 (II) and (III) are separated in the axial direction so that the connecting member 262 protrudes from the insertion hole 266 to the right in the drawing. A jig 279 is shown.
As shown in FIG. 21, the jig 279 is provided with a pair of protrusion-shaped claws 278 bent at right angles in opposite directions as shown in FIGS. 21 (B) and 21 (C). A retracting portion 282 having a retracting arm 280, a pressing portion 286 having a pair of pressing arms 284, and a guide portion 290 that guides the pair of retracting arms 280 in the separating direction by a central bridge portion 288. Have.
Here, a penetrating notch 292 is provided at each tip of the pair of pressing arms 284.

図１９（III）に示す状態、即ち互いに径方向に重複する状態に、また軸方向に収縮する状態に組み付いた状態の固定クリップ２６４と接続部材２６２とは、図２１に示す治具２７９を用いて容易に軸方向に分離することができる。
具体的な手順としては、先ず図２０（IV）に示しているように一対の押圧用のアーム２８４の先端を、固定クリップ２６４の係合部２７２にあてがってこれを図中左向きに押圧する。
その状態で引込用の一対のアーム２８０を図中右方向に移動させると、ガイド部２９０におけるブリッジ部２８８の分離作用によって、一対の引込用のアーム２８０が図中上下方向に分離せしめられる。 The fixing clip 264 and the connecting member 262 assembled in a state shown in FIG. 19 (III), that is, in a state where they overlap each other in the radial direction and contract in the axial direction, are provided with the jig 279 shown in FIG. And can be easily separated in the axial direction.
As a specific procedure, first, as shown in FIG. 20 (IV), the tips of the pair of pressing arms 284 are applied to the engaging portions 272 of the fixing clip 264 and pressed to the left in the figure.
In this state, when the pair of retracting arms 280 are moved in the right direction in the drawing, the pair of retracting arms 280 are separated in the vertical direction in the drawing by the separating action of the bridge portion 288 in the guide portion 290.

このとき一対の引込用のアーム２８０の先端部の爪２７８が切欠部２９２より外部に突出して、接続部材２６２の径方向内向きの係合部２７６に係合するに到る。
その状態で一対の引込用のアーム２８０を図中右向きに引き込むと、ここにおいて固定クリップ２６４を当初の位置に保持しながら、接続部材２６２が図中右方向に引き込まれて固定クリップ２６４から分離され、その先端（図中右端）を内ハウジング３２の連結口部６２に内嵌させる。 At this time, the claw 278 at the tip of the pair of retracting arms 280 protrudes from the notch 292 and engages with the radially inward engaging portion 276 of the connecting member 262.
In this state, when the pair of retracting arms 280 are pulled rightward in the drawing, the connecting member 262 is pulled rightward in the drawing and separated from the fixing clip 264 while holding the fixing clip 264 in the original position. The tip (right end in the figure) is fitted into the connection port 62 of the inner housing 32.

而して固定クリップ２６４は、接続部材２６２から軸方向に分離されることで、蓄えていた弾性力により拡径変形し、軸方向の両端を接続部材２６２と挿入穴２６６の当接面２６８とに当接させて、接続部材２６２を位置決状態に固定する。
またこのとき接続部材２６２は、内ハウジング３２側の流出用開口６０と、外ハウジング３０側の流出用開口６４とを水密に接続した状態となる。
尚上記の治具２７９は、その後一対の引込用のアーム２８０を再び重ね合せ状態とすることで、図２０（VI）中右方向に抜き出すことができる。 Thus, the fixing clip 264 is separated from the connection member 262 in the axial direction, and is expanded in diameter by the stored elastic force, and both ends in the axial direction are connected to the contact surface 268 of the connection member 262 and the insertion hole 266. The connection member 262 is fixed to the position determination state.
At this time, the connection member 262 is in a state where the outflow opening 60 on the inner housing 32 side and the outflow opening 64 on the outer housing 30 side are connected in a watertight manner.
The jig 279 can be extracted rightward in FIG. 20 (VI) by bringing the pair of retracting arms 280 into the overlapping state again.

この第２の実施形態においても、接続部材２６２が外ハウジング３０の内側に内蔵されているため、接続部材２６２が外ハウジング３０から外部に突出して、そこに継目を形成する等して水栓の外観を損ねる問題を生じず、水栓を良好な外観で構成することができる。
また接続部材２６２に対する外観仕上げの処理を不要化でき、コストを安価とすることができる。
更に第１の実施形態と同様に接続部材２６２には大きな荷重はかからず、強度も要求されないため接続構造を安価に構成することができる。 Also in the second embodiment, since the connecting member 262 is built inside the outer housing 30, the connecting member 262 protrudes from the outer housing 30 to the outside, and a seam is formed there. The faucet can be configured with a good appearance without causing a problem of impairing the appearance.
Further, the appearance finishing process for the connection member 262 can be eliminated, and the cost can be reduced.
Further, as in the first embodiment, the connection member 262 is not subjected to a large load and does not require strength, so that the connection structure can be configured at low cost.

また本実施形態では、接続部材２６２及び固定クリップ２６４の何れもを外ハウジング３０の内側に内蔵させているにも拘らず、接続部材２６２による外ハウジング３０の流出用開口６４と内ハウジング３２の流出用開口６０との接続を容易に行うことができ、且つ接続部材２６２の固定自体も容易に行うことができる。   Further, in this embodiment, although both the connection member 262 and the fixing clip 264 are incorporated inside the outer housing 30, the outflow opening 64 of the outer housing 30 and the outflow of the inner housing 32 by the connection member 262. The connection with the opening 60 can be easily performed, and the connection member 262 can be easily fixed.

更に外ハウジング３０の上記の吐水口部２６０が屈曲形状をなしていて、そこから接続部材２６２及び固定クリップ２６４を挿入することができないにも拘らず、外ハウジング３０の流出用開口７４を通じて接続部材２６２及び固定クリップ２６４を支障なく外ハウジング３０の内側空間、更にはその内側空間を通じて挿入穴２６６に挿入し、固定することができる。   Further, although the water outlet 260 of the outer housing 30 has a bent shape, the connecting member 262 and the fixing clip 264 cannot be inserted therethrough, but the connecting member through the outflow opening 74 of the outer housing 30. 262 and the fixing clip 264 can be inserted into the insertion hole 266 and fixed through the inner space of the outer housing 30 and further through the inner space without any trouble.

以上本発明の実施形態を詳述したがこれはあくまで一例示である。
例えば本発明は、内ハウジング３２側に、水側のクランク脚２６からの水を内ハウジング３２内部に流入させるための水流入用開口を設けて、その内ハウジング３２側の水流入用開口と、外ハウジング３０側の水流入用開口３８とを接続部材にて水密接続する一方、外ハウジング３０と内ハウジング３２との間の空間を湯側流路となして、湯側のクランク脚２８からの湯を、外ハウジンの湯流入用開口５２から湯側流路へと流入させ、更に内ハウジング３２に設けた開口を通じその内部に流入させるようになすこと、その際に外ハウジングの水流入用開口３８と、内ハウジングの水流入用開口との接続部材による接合構造に本発明を適用することも可能である。
更には本発明を、内ハウジング３２からの混合水を吐水管１６側に流出させる部分、或いはシャワー側に流出させる部分の構造に適用するといったことも可能である等、本発明はその趣旨を逸脱しない範囲において種々変更を加えた形態で構成可能である。 Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, in the present invention, a water inflow opening for allowing water from the water-side crank leg 26 to flow into the inner housing 32 is provided on the inner housing 32 side, and the water inflow opening on the inner housing 32 side; While the water inflow opening 38 on the outer housing 30 side is watertightly connected by a connecting member, the space between the outer housing 30 and the inner housing 32 serves as a hot water side flow path, Hot water is allowed to flow from the hot water inflow opening 52 of the outer housing into the hot water side flow path, and is further allowed to flow into the inside through the opening provided in the inner housing 32, and at this time, the water inflow opening of the outer housing It is also possible to apply the present invention to a joint structure formed by a connecting member between 38 and the water inflow opening of the inner housing.
Furthermore, the present invention can be applied to a structure in which the mixed water from the inner housing 32 flows out to the water discharge pipe 16 side or a part that flows out to the shower side, and the present invention departs from the gist thereof. It can be configured in variously modified forms within a range that does not.

１０混合水栓
３０ 外ハウジング
３２ 内ハウジング
５０ 流入用開口
６０，６４，７０，７４ 流出用開口
６８ 締付ナット
２４８，２５０ 接続部材
２５２，２６８ 当接面
２６２ 接続部材
２６４ 固定クリップ（固定部材）
２６６ 挿入穴
２７０，２７２ 係合部（第１係合部）
２７４ クリップ保持部
２７６ 係合部（第２係合部）
２７９ 治具 10 Mixing faucet 30 Outer housing 32 Inner housing 50 Inflow opening 60, 64, 70, 74 Outflow opening 68 Tightening nut 248, 250 Connection member 252, 268 Contact surface 262 Connection member 264 Fixing clip (fixing member)
266 Insertion hole 270, 272 Engaging portion (first engaging portion)
274 Clip holding portion 276 engaging portion (second engaging portion)
279 Jig

Claims (7)

水栓本体が筒形の外ハウジングと内ハウジングとを有し、該外ハウジングと内ハウジングとの間に流路を形成する混合水栓において、
前記外ハウジングには筒壁を貫通する流入用又は流出用の外ハウジング側通水開口と、該外ハウジング側通水開口から外部に突出する流入口部又は流出口部を備える一方、前記内ハウジングには、該外ハウジング側通水開口に対応した流入用又は流出用の内ハウジング側通水開口を備えて、それら外ハウジング側通水開口と内ハウジング側通水開口とを接続部材にて接続し、
該接続部材を前記外ハウジングの内側に内蔵させるとともに、該外ハウジングの内側において該接続部材を該接続部材とは別体の固定部材にて固定したことを特徴とする混合水栓。 In the mixing faucet in which the faucet body has a cylindrical outer housing and an inner housing, and a flow path is formed between the outer housing and the inner housing,
The outer housing includes an inflow or outflow water passage opening for inflow or outflow that passes through the cylindrical wall, and an inflow portion or an outflow portion that protrudes to the outside from the outer housing side water passage opening. Has an inflow or outflow inner housing side water passage opening corresponding to the outer housing side water passage opening, and the outer housing side water passage opening and the inner housing side water passage opening are connected by a connecting member. And
A mixing faucet characterized in that the connecting member is built inside the outer housing, and the connecting member is fixed inside the outer housing by a fixing member separate from the connecting member. 請求項１において、前記外ハウジングの内側には、前記接続部材及び前記固定部材を内嵌状態に挿入させる挿入穴が設けられ、該接続部材と固定部材とが該挿入穴に対して軸方向に隣接した位置で内嵌し、該固定部材が該接続部材の軸方向の端面、及び該端面とは反対側の前記挿入穴への当接により、該接続部材を軸方向に位置決状態に固定していることを特徴とする混合水栓。   In Claim 1, The insertion hole which inserts the said connection member and the said fixing member in an internal fitting state is provided in the inner side of the said outer housing, and this connection member and a fixing member are an axial direction with respect to this insertion hole. It is fitted inside at an adjacent position, and the fixing member is fixed in the axially positioned state by contacting the connecting member with the axial end surface of the connecting member and the insertion hole opposite to the end surface. A mixing faucet characterized by 請求項２において、前記挿入穴が前記外ハウジングの内側空間から径方向外方向に向って延びているとともに、該外ハウジングは、該内側空間を間にして該挿入穴に対向した位置に、前記接続部材及び固定部材が通過可能な開口を有していることを特徴とする混合水栓。   3. The insertion hole according to claim 2, wherein the insertion hole extends radially outward from the inner space of the outer housing, and the outer housing is located at a position facing the insertion hole with the inner space therebetween. A mixing faucet having an opening through which a connecting member and a fixing member can pass. 請求項３において、前記外ハウジングの前記流入口部又は流出口部は屈曲形状であることを特徴とする混合水栓。   4. The mixing faucet according to claim 3, wherein the inlet or outlet of the outer housing has a bent shape. 請求項３，４の何れかにおいて、前記固定部材が弾性を有するリング状の固定クリップであり、前記接続部材は、該固定クリップを縮径状態で内側に収容し保持するクリップ保持部を前記挿入穴への挿入方向の先端側に有するものとなしてあり、
該固定クリップが、該接続部材に保持されて該接続部材とともに径方向に重複状態で前記挿入穴に挿入可能、且つ挿入後においてそれら固定クリップと接続部材とが軸方向に分離され、該接続部材が該分離に伴って前記挿入穴から前記外ハウジングの内側空間に突出するものとなしてあることを特徴とする混合水栓。 5. The clip fixing portion according to claim 3, wherein the fixing member is a ring-shaped fixing clip having elasticity, and the connection member inserts a clip holding portion that accommodates and holds the fixing clip inside in a reduced diameter state. It is supposed to be on the tip side in the direction of insertion into the hole,
The fixing clip is held by the connecting member and can be inserted into the insertion hole in a radially overlapping state together with the connecting member. After the insertion, the fixing clip and the connecting member are separated in the axial direction, and the connecting member Is a mixture faucet that protrudes from the insertion hole into the inner space of the outer housing along with the separation. 請求項５において、前記固定クリップには径方向内方に突出し、治具により前記挿入穴への押込方向の押圧力を受ける第１係合部が、また前記接続部材には径方向内方に突出し、該治具により該挿入穴からの抜出方向の力を受ける第２係合部がそれぞれ設けてあることを特徴とする混合水栓。   6. The first engagement portion according to claim 5, wherein the fixing clip protrudes radially inward and receives a pressing force in the pressing direction into the insertion hole by a jig, and the connecting member radially inward. A mixing faucet characterized in that a second engaging portion that protrudes and receives a force in the direction of extraction from the insertion hole by the jig is provided. 請求項５，６の何れかにおいて、前記固定クリップを保持した状態で前記接続部材を前記挿入穴に挿入した状態では、前記内ハウジングを前記外ハウジングに対して軸方向に挿入可能であり、
前記固定クリップを軸方向に分離し、前記接続部材を前記挿入穴への挿入方向と逆方向に引き出すことで、該接続部材を前記内ハウジング側通水開口に接続可能となしてあることを特徴とする混合水栓。 In any one of claims 5 and 6, in a state where the connection member is inserted into the insertion hole while holding the fixing clip, the inner housing can be inserted in the axial direction with respect to the outer housing,
The fixing clip is separated in the axial direction, and the connecting member is pulled out in the direction opposite to the inserting direction into the insertion hole, so that the connecting member can be connected to the water passage opening on the inner housing side. And a mixed faucet.
JP2011035935A 2011-02-22 2011-02-22 Combination faucet Withdrawn JP2012172411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011035935A JP2012172411A (en) 2011-02-22 2011-02-22 Combination faucet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011035935A JP2012172411A (en) 2011-02-22 2011-02-22 Combination faucet

Publications (1)

Publication Number Publication Date
JP2012172411A true JP2012172411A (en) 2012-09-10

Family

ID=46975587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011035935A Withdrawn JP2012172411A (en) 2011-02-22 2011-02-22 Combination faucet

Country Status (1)

Country Link
JP (1) JP2012172411A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019082070A (en) * 2017-10-31 2019-05-30 パナソニックＩｐマネジメント株式会社 Water faucet
JP2020200658A (en) * 2019-06-10 2020-12-17 Toto株式会社 Hot-water/cold-water mixture faucet device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019082070A (en) * 2017-10-31 2019-05-30 パナソニックＩｐマネジメント株式会社 Water faucet
JP2020200658A (en) * 2019-06-10 2020-12-17 Toto株式会社 Hot-water/cold-water mixture faucet device
JP7358789B2 (en) 2019-06-10 2023-10-11 Toto株式会社 Hot water mixing faucet device

Similar Documents

Publication Publication Date Title
US7814927B2 (en) Faucet with accessible waterway assembly
JP2012172772A (en) Mixing faucet
US20110126919A1 (en) Thermostatic housing control assembly
JP2017172662A (en) Combination faucet
JP5736587B2 (en) Handle stopper mechanism
JP2012172411A (en) Combination faucet
JP2009532631A (en) Induction valve
JP6057845B2 (en) Valve unit and faucet
JP5747278B2 (en) Mixer tap
JP5861181B2 (en) Mixer tap
JP4936926B2 (en) Hot water mixing valve
JP4253849B2 (en) Faucet device
JP5499597B2 (en) Hot water mixing device
US9709185B1 (en) Faucet with quickly replaceable valve cartridge
CN110319241B (en) Quick installation structure of body in tap
JP5732661B2 (en) Cylinder type valve device
JP2003027540A (en) Faucet
JP6452983B2 (en) Assembling method of valve unit, faucet and valve unit
JP3753370B2 (en) How to install faucets and faucets
JP5594279B2 (en) Flush valve connection structure
JP2019218798A (en) Faucet device
CN211288863U (en) Valve assembly and faucet with same
JP4160909B2 (en) Hot and cold water faucet
JP5800543B2 (en) Shower elbow and shower faucet with shower elbow
US10921832B2 (en) Hot water valve with integral thermostatic mixing cartridge

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20140513