JP2009210130A - Hot/cold water mixing faucet - Google Patents
Hot/cold water mixing faucet Download PDFInfo
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Abstract
Description
この発明は、湯水混合水栓に関するものである。 The present invention relates to hot water mixing faucet.
本出願人は、外径が例えば４６ｍｍの水栓本体を備えたサーモ型湯水混合水栓から浴室に設置される手すりとして規格に合った手すり型水栓へ取替えることができるよう例えば３４ｍｍと小径の外径を持つ水栓本体を備えたサーモ型湯水混合水栓を開発中である（特許文献１参照）。 The applicant of the present invention has a small diameter of 34 mm, for example, so that the thermo-type hot and cold water mixing faucet provided with a faucet body having an outer diameter of 46 mm, for example, can be replaced with a handrail-type faucet that meets the standard as a handrail installed in the bathroom. it is developing a thermo-type mixing valve having a faucet body having an outer diameter (see Patent Document 1).
これは、図３６、図３７に示すように、一端に水、湯、または混合水の吐出・止水機能と流量調整機能を有する切替ハンドル１を設けるとともに、他端に混合水の温度調節機能を有する温調ハンドル２を設けた筒状の水栓本体３の内部に、切替ハンドル１と接続可能な切替ユニット４と、温調ハンドル２と接続可能な温調ユニット５とが装入される一方、温調ユニット５の端部５ａは、切替ユニット４の端部４ａに接続可能に構成され、また、水栓本体３は、湯配管に連通するよう湯配管用継手７が着脱可能に装着された湯接続口８と、水配管に連通するよう水配管用継手９が着脱可能に装着された水接続口１０を有するとともに、吐水管用継手１３が着脱可能に装着された水、湯、または混合水の吐水管接続口および／またはシャワーホース用継手１１が着脱可能に装着されたシャワーホース接続口１２を有し、切替ユニット４は、前記吐水管接続口に連通する連通穴とシャワーホース接続口１２に連通する連通穴を有するとともに、切替ユニット４は、前記各連通穴に連通する固定穴を有する筒状の固定部材Ｋと、切替ハンドル１の切替操作により水栓本体３の軸芯Ａのまわりで固定部材Ｋ内を回動し、それによって、水、湯、または混合水の流路を前記固定穴および前記連通穴を介して前記吐水管接続口またはシャワーホース接続口１２に連通させる切欠穴Ｈを胴部ｈに有する筒状の回動部材ｔとを有する弁機構を備えてなるというものである。 As shown in FIGS. 36 and 37, this is provided with a switching handle 1 having a discharge / water stop function and a flow rate adjustment function at one end, and a temperature adjustment function at the other end. A switching unit 4 that can be connected to the switching handle 1 and a temperature control unit 5 that can be connected to the temperature control handle 2 are inserted into a cylindrical faucet body 3 provided with a temperature control handle 2 having On the other hand, the end portion 5a of the temperature control unit 5 is configured to be connectable to the end portion 4a of the switching unit 4, and the faucet body 3 is detachably mounted with a hot water pipe joint 7 so as to communicate with the hot water pipe. Water, a hot water connection port 8 and a water connection port 10 to which a water pipe joint 9 is detachably attached so as to communicate with the water pipe, and water, hot water, or Mixed water spout and / or shower ho The switching unit 4 has a communication hole that communicates with the water discharge pipe connection port and a communication hole that communicates with the shower hose connection port 12 and is switched. The unit 4 has a cylindrical fixing member K having a fixing hole communicating with each of the communication holes, and rotates inside the fixing member K around the axis A of the faucet body 3 by a switching operation of the switching handle 1. Thereby, a cylindrical shape having a notch hole H in the body portion h for communicating a flow path of water, hot water, or mixed water to the water discharge pipe connection port or the shower hose connection port 12 through the fixing hole and the communication hole. A valve mechanism having a rotating member t is provided.
温調ユニット５は、水栓本体３内に設けられた筒状のサーモ本体１５を有し、このサーモ本体１５には、図３６に黒色で塗りつぶした箇所にサーモワックス１６が内蔵されるとともにサーモワックス１６が膨張したときに伸び、また、サーモワックス１６が収縮したときに縮むピストン１７を有するサーモエレメント１８が収容され、前記サーモ本体１５の胴には湯導入孔１９および水導入孔２０が形成され、かつ、前記サーモ本体１５には、混合水の温度を前記サーモエレメント１８が感温するとサーモワックス１６が膨張または収縮して前記ピストン１７が伸びまたは縮むことで、前記水栓本体３の軸芯方向に前記サーモエレメント１８と共に変位し、前記湯導入孔１９とによって形成される給湯側通路のすき間１００および前記水導入孔２０とによって形成される給水側通路のすき間を調整しうるサーモバルブ２１が内蔵されている。 The temperature control unit 5 has a cylindrical thermo main body 15 provided in the faucet main body 3. The thermo main body 15 includes a thermo wax 16 in a portion painted in black in FIG. A thermo element 18 having a piston 17 that expands when the wax 16 expands and contracts when the thermo wax 16 contracts is accommodated, and a hot water introduction hole 19 and a water introduction hole 20 are formed in the body of the thermo body 15. In addition, when the thermoelement 18 senses the temperature of the mixed water, the thermowax 16 expands or contracts and the piston 17 extends or contracts, so that the shaft of the faucet body 3 A gap 100 in the hot water supply side passage formed by the hot water introduction hole 19 which is displaced together with the thermo element 18 in the core direction and the water introduction. 20 thermo-valve 21 which can adjust the gap between the water supply side passage is built formed by the.
そして、温調ハンドル２を水栓本体３の軸芯Ａまわりに回動させて所定温度（例えば４０℃）に設定すると、給湯側通路のすき間１００および給水側通路のすき間を通ってきたそれぞれ湯および水がサーモエレメント１８のまわりで混合され、サーモエレメント１８が働き、４０℃の混合水が吐水管またはシャワーホースへ流れるが、この場合、例えば混合水の温度が４０℃より上昇した場合、これをサーモエレメント１８が感温してサーモエレメント１８内のサーモワックス１６が膨張してピストン１７を伸ばし（押し出し）、給水側通路のすき間を広げるとともに、給湯側通路のすき間１００を狭めるようサーモエレメント１８と共にサーモバルブ２１が変位し、混合水の温度が下がり、ほぼ４０℃に調節できる。また、混合水の温度が４０℃より降下した場合、これをサーモエレメント１８が感温してサーモエレメント１８内のサーモワックス１６が収縮してピストン１７を縮め、給水側通路のすき間を狭めるとともに、給湯側通路のすき間１００を広げるようサーモエレメント１８と共にサーモバルブ２１が変位し、混合水の温度が上がり、ほぼ４０℃に調節できる。 Then, when the temperature control handle 2 is rotated around the axis A of the faucet body 3 and set to a predetermined temperature (for example, 40 ° C.), the hot water that has passed through the gap 100 in the hot water supply side passage and the gap in the water supply side passage respectively. And water is mixed around the thermo element 18 and the thermo element 18 is activated, and 40 ° C. mixed water flows to the water discharge pipe or shower hose. In this case, for example, when the temperature of the mixed water rises above 40 ° C. When the thermo-element 18 senses the temperature, the thermo-wax 16 in the thermo-element 18 expands to extend (push out) the piston 17, widen the gap in the water supply side passage, and narrow the gap 100 in the hot water supply side passage. At the same time, the thermo valve 21 is displaced, the temperature of the mixed water is lowered, and can be adjusted to approximately 40 ° C. When the temperature of the mixed water drops below 40 ° C., the thermo element 18 senses the temperature, the thermo wax 16 in the thermo element 18 contracts and the piston 17 contracts, and the gap in the water supply side passage is narrowed, The thermo valve 21 is displaced together with the thermo element 18 so as to widen the gap 100 in the hot water supply side passage, and the temperature of the mixed water rises and can be adjusted to approximately 40 ° C.
ところで、従来の湯水混合水栓では、切替ユニットの弁機構の構成部材として所定の大きさの連通用長孔が内側に形成されたセラミック製の可動ディスク、セラミック製の固定ディスクが用いられていた。 By the way, in a conventional hot and cold water mixing faucet, a ceramic movable disk and a ceramic fixed disk in which long holes for communication of a predetermined size are formed inside are used as constituent members of the valve mechanism of the switching unit. .
この発明は、弁機構の構成部材として所定の大きさの連通用長孔が内側に形成されたセラミック製の可動ディスク、セラミック製の固定ディスクを用いた場合に比してコンパクト化できる湯水混合水栓を提供することを目的とする。 The present invention provides a hot and cold water mixture that can be made compact as compared with the case where a ceramic movable disk and a ceramic fixed disk having communication holes of a predetermined size formed therein are used as constituent members of the valve mechanism. The purpose is to provide a stopper.
上記目的を達成するために、この発明の湯水混合水栓は、一端に水、湯、または混合水の吐出・止水機能と流量調整機能を有する切替ハンドルを設けるとともに、他端に混合水の温度調節機能を有する温調ハンドルを設けた筒状の水栓本体の内部に、前記切替ハンドルと接続可能な切替ユニットと、前記温調ハンドルと接続可能な温調ユニットとが装入される一方、前記温調ハンドルによって混合水の温度を任意に設定することが可能な湯水混合水栓であって、
前記水栓本体は、吐水管用継手が装着された吐水管接続口と、シャワーホース用継手が装着されたシャワーホース接続口とを周方向に間隔をあけて有し、
前記切替ユニットは、
前記水栓本体内に嵌込まれ、前記吐水管接続口に連通する連通孔及び前記シャワーホース接続口に連通する連通孔を有する筒状の第１の固定部材と、
この第１の固定部材内に嵌込まれ、各前記連通孔に跨がって連通する切欠きを有する筒状の第２の固定部材と、
前記切替ハンドルの切替操作により前記水栓本体の軸芯のまわりで前記第２の固定部材内を回動し、それによって、水、湯、または混合水の流路を前記切欠きおよび各前記連通孔を介して前記吐水管接続口またはシャワーホース接続口に連通させる連通孔を胴に有する筒状の回動部材とを有する弁機構を備え、
前記第２の固定部材の胴に設けた切欠きに嵌込み可能な外形形状を有し、前記吐水管接続口と前記シャワーホース接続口との間に対応する位置に仕切り部分が設けられた略８の字形状の部分を有する異形オーリングと、前記略８の字形状の部分の二つの輪にそれぞれ嵌め込まれるガイドリングとを設けた。
To achieve the above object, hot water mixing faucet of the present invention, water, hot water or provided with a switch handle having a discharge-waterproofing function and the flow rate adjusting function of the mixing water, at one end, mixed water at the other end A switching unit that can be connected to the switching handle and a temperature control unit that can be connected to the temperature control handle are inserted into a cylindrical faucet body provided with a temperature control handle having a temperature control function. hand, a hot water mixing faucet that can be arbitrarily set the temperature of the mixed water by the previous SL temperature control handle,
The faucet body has a water discharge pipe connection port to which a water discharge pipe joint is attached and a shower hose connection port to which a shower hose joint is attached, spaced in the circumferential direction.
The switching unit is
A tubular first fixing member that is fitted in the faucet body and has a communication hole that communicates with the water discharge pipe connection port and a communication hole that communicates with the shower hose connection port;
A cylindrical second fixing member fitted into the first fixing member and having a notch communicating across each of the communication holes;
By the switching operation of the switching handle, the inside of the second fixing member is rotated around the axis of the faucet body, whereby the flow path of water, hot water, or mixed water passes through the notch and each of the communication channels. A valve mechanism having a cylindrical rotation member having a communication hole in the body communicating with the water discharge pipe connection port or the shower hose connection port through a hole;
It has an outer shape that can be fitted into a notch provided in the body of the second fixing member, and a partition portion is provided at a position corresponding to between the water discharge pipe connection port and the shower hose connection port. An odd-shaped O-ring having an 8-shaped portion and guide rings that are respectively fitted into two rings of the approximately 8-shaped portion are provided.
本願の請求項１に係る発明では、吐水管接続口に連通する連通孔と前記シャワーホース接続口に連通する連通孔を有する筒状の第１の固定部材を水栓本体内に嵌込むとともに、前記各連通孔に連通する切欠きを有する筒状の第２の固定部材を前記第１の固定部材内に嵌込み、切替ハンドルの切替操作により筒状の回動部材を前記水栓本体の軸芯のまわりで前記第２の固定部材内を回動させる構成を採用している。したがって、弁機構の構成部材として従来用いられていたような所定の大きさの連通用長孔が内側に形成されていたセラミック製の可動ディスク、セラミック製の固定ディスクに比して回動部材の外径、前記第２の固定部材の外径、前記第１の固定部材の外径をそれぞれ小径にでき、ひいては水栓本体の外径を小径にでき、コンパクトなサーモ型湯水混合水栓を提供することができる。このため、前記セラミック製の可動ディスク、セラミック製の固定ディスクよりなる弁機構を持つ外径が例えば４６ｍｍの水栓本体を備えた湯水混合水栓から、浴室に設置される手すりとして規格に合った例えば３４ｍｍと小径の水栓本体を持つ手すり型水栓へ取替えることができる。In the invention according to claim 1 of the present application, the tubular first fixing member having a communication hole communicating with the water discharge pipe connection port and a communication hole communicating with the shower hose connection port is fitted into the faucet body, A cylindrical second fixing member having a notch communicating with each of the communication holes is fitted in the first fixing member, and the cylindrical rotating member is moved to the shaft of the faucet body by switching operation of the switching handle. A configuration in which the inside of the second fixing member is rotated around the core is adopted. Therefore, the rotating member of the ceramic movable disk and the fixed member made of ceramic, in which a long hole for communication having a predetermined size, which has been conventionally used as a constituent member of the valve mechanism, is formed. An outer diameter, an outer diameter of the second fixing member, and an outer diameter of the first fixing member can be made smaller, and the outer diameter of the faucet body can be made smaller. can do. For this reason, from a hot and cold water mixing faucet provided with a faucet body having an outer diameter of 46 mm, for example, having a valve mechanism composed of the ceramic movable disk and the ceramic fixed disk, it meets the standard as a handrail installed in the bathroom. For example, it can be replaced with a handrail-type faucet having a faucet body with a small diameter of 34 mm.
以下にこの発明の実施の形態について説明する。なお、この発明はそれによって限定されるものではない。
図１〜図２２は、浴室に設置される手すりとして規格に合った手すり型水栓へ取替えることが可能な例えば３４ｍｍの外径を持つ筒状の水栓本体を備えたこの発明の第１の実施形態を示す。
Embodiments of the present invention will be described below. The present invention is not limited thereby.
1 to 22 show a first embodiment of the present invention including a cylindrical faucet body having an outer diameter of 34 mm, for example, which can be replaced with a handrail faucet conforming to a standard as a handrail installed in a bathroom. An embodiment is shown.
図１〜図２２において、３１は、３４ｍｍの外径を持つ筒状の水栓本体で、一端に水、湯、または混合水の吐出・止水機能と流量調整機能を有する切替ハンドル３２を設けるとともに、他端に混合水の温度調節機能を有する温調ハンドル３３を設けてある。温調ハンドル３３および切替ハンドル３２は、操作時に水栓本体３１の軸芯Ｘまわりに回動するよう構成されている。前記水栓本体３１は、一端に切替ユニット装入用の開口３１ａを有する一方、他端に温調ユニット装入用の開口１ｂを有する。 1 to 22, 31 is a cylindrical faucet body having an outer diameter of 34 mm, and a switching handle 32 having a function of discharging / stopping water, hot water or mixed water and a flow rate adjusting function is provided at one end. In addition, a temperature control handle 33 having a function of adjusting the temperature of the mixed water is provided at the other end. The temperature control handle 33 and the switching handle 32 are configured to rotate around the axis X of the faucet body 31 during operation. The faucet body 31 has an opening 31a for inserting a switching unit at one end, and an opening 1b for inserting a temperature control unit at the other end.
３４は、前記切替ハンドル３２と接続可能な切替ユニットで、前記開口３１ａを介して水栓本体３１の内部に水栓本体３１の軸芯Ｘと同軸になるよう装入配置される。８１は、切替表示リングである。 Reference numeral 34 denotes a switching unit that can be connected to the switching handle 32, and is placed in the faucet body 31 through the opening 31a so as to be coaxial with the axis X of the faucet body 31. Reference numeral 81 denotes a switching display ring.
３５は、前記温調ハンドル３３と接続可能な温調ユニットで、前記開口３１ｂを介して水栓本体３１の内部に水栓本体３１の軸芯Ｘと同軸になるよう装入配置される。 Reference numeral 35 denotes a temperature control unit that can be connected to the temperature control handle 33, and is placed in the faucet body 31 through the opening 31b so as to be coaxial with the axis X of the faucet body 31.
また、前記温調ユニット３５の端部３５ａ、具体的には後述するサーモ本体６０の端部３５ａは、Ｏリング３６を介して前記切替ユニット３４の端部３４ａ、具体的には後述する切替弁ケース４５の端部３４ａに接続可能に構成されている。この実施形態では前記端部３４ａ内に前記端部３５ａが着脱可能に嵌込まれている。 An end portion 35a of the temperature control unit 35, specifically an end portion 35a of a thermo body 60 described later, is connected to an end portion 34a of the switching unit 34 via an O-ring 36, specifically a switching valve described later. The case 45 is configured to be connectable to the end 34 a. In this embodiment, the end 35a is detachably fitted in the end 34a.
更に、前記水栓本体３１は、湯配管（図示せず）に連通するよう湯配管用継手３７が着脱可能に装着された湯接続口３８と、水配管（図示せず）に連通するよう水配管用継手３９が着脱可能に装着された水接続口４０と、Ｌ字型のシャワーホース用継手４１が着脱可能に装着されたシャワーホース接続口４２（図４、図５参照）とを背面側に有するとともに、下面側に、吐水管用継手（図示せず）が着脱可能に装着された水、湯、または混合水の吐水管接続口４４を有する。図２において、１１１は、水配管から水栓本体３１に流入する水流入路を示し、１１２で示す矢印（実線）は、水栓本体３１内を環状に流れる水の環状流路を示し、１１３は、湯配管から水栓本体３１に流入する湯流入路を示し、１１４で示す矢印（点線）は、水栓本体３１内を流れる湯の流路を示す。また、１１５は、水栓本体３１から流出する混合水のシャワーホースへの流出路を示し、１１６で示す矢印（一点鎖線）は、水栓本体３１からシャワーホース用継手４１へ流出する混合水の流路を示す。 Further, the faucet body 31 is connected to a hot water connection port 38 to which a hot water pipe joint 37 is detachably attached so as to communicate with a hot water pipe (not shown), and water so as to communicate with a water pipe (not shown). A water connection port 40 to which a joint 39 for piping is detachably attached and a shower hose connection port 42 (see FIGS. 4 and 5) to which an L-shaped shower hose joint 41 is detachably attached are provided on the rear side. And a water discharge pipe connection port 44 on which a water discharge pipe joint (not shown) is detachably mounted on the lower surface side. In FIG. 2, 111 indicates a water inflow path that flows into the faucet body 31 from the water pipe, and an arrow (solid line) indicated by 112 indicates an annular flow path of water that flows in an annular manner in the faucet body 31. Indicates a hot water inflow passage that flows into the faucet body 31 from the hot water pipe, and an arrow (dotted line) indicated by 114 indicates a flow path of the hot water flowing in the faucet body 31. Reference numeral 115 denotes an outflow path of the mixed water flowing out from the faucet body 31 to the shower hose, and an arrow 116 (dotted line) denotes mixed water flowing out from the faucet body 31 to the shower hose joint 41. A flow path is shown.
４５は、切替ユニット３４の外ケースとしての切替弁ケース（第１の固定部材）で、図１０に示すように筒状であり、水栓本体３１内に水栓本体３１と同軸で横置き状態で設けられている。この切替弁ケース４５は、樹脂製で、筒状の水栓本体３１の内壁に０リングなどのシール部材４５ｃを介して固定されている。切替弁ケース４５は、図４、図５、図１０に示されているように、吐水管接続口４４に連通する一対の第１の連通孔４５ａ，４５ａと、シャワーホース接続口４２に連通する一対の第２の連通孔４５ｂ，４５ｂとを有する。この実施形態では、連通孔４５ａと連通孔４５ｂは同形で、これらは略半月形に形成されている。そして、図１０、図１に示すように、一組の例えば第１の連通孔４５ａ，４５ａ同士は、円の中心を通る平面視細長の矩形形状の仕切り部分ｍで仕切られているが、この細長の仕切り部分ｍは、仕切り部分ｍの長手方向が水栓本体３１の軸芯Ｘの方向に沿うよう設けられている。また、二組目の第２の連通孔４５ｂ，４５ｂ同士は、円の中心を通る平面視細長の矩形形状の仕切り部分ｍ’で仕切られているが、この細長の仕切り部分ｍ’も、仕切り部分ｍと同様、仕切り部分ｍ’の長手方向が水栓本体３１の軸芯Ｘの方向に沿うよう設けられている。そして、仕切り部分ｍ’と仕切り部分ｍ’は同一形状をなす。なお、８２は、切替弁ケース４５と切替表示リング８１間に介装された切替ブッシングである。更に、切替弁ケース４５は、前記第１の連通孔４５ａ、第２の連通孔４５ｂが位置している部分と、サーモ本体６０の端部３５ａとの接続部分である前記端部３４ａとの間に、他の部分よりも内径の小さな内向きのリング状フランジ４５ｈを有する。 Reference numeral 45 denotes a switching valve case (first fixing member) as an outer case of the switching unit 34, which is cylindrical as shown in FIG. 10, and is placed horizontally in the faucet body 31 coaxially with the faucet body 31. Is provided. The switching valve case 45 is made of resin, and is fixed to the inner wall of the tubular faucet body 31 via a seal member 45c such as a 0 ring. As shown in FIGS. 4, 5, and 10, the switching valve case 45 communicates with the pair of first communication holes 45 a and 45 a that communicate with the water discharge pipe connection port 44 and the shower hose connection port 42. It has a pair of 2nd communicating holes 45b and 45b. In this embodiment, the communication hole 45a and the communication hole 45b are the same shape, and these are formed in a substantially meniscus shape. As shown in FIGS. 10 and 1, the pair of first communication holes 45 a and 45 a, for example, is partitioned by a rectangular partition portion m that is elongated in plan view and passes through the center of the circle. The elongated partition part m is provided so that the longitudinal direction of the partition part m is along the direction of the axis X of the faucet body 31. The second communication holes 45b and 45b in the second set are partitioned by a rectangular partition part m ′ that is elongated in plan view and passes through the center of the circle. The elongated partition part m ′ is also partitioned by a partition. Like the portion m, the partition portion m ′ is provided so that the longitudinal direction thereof is along the direction of the axis X of the faucet body 31. The partition portion m ′ and the partition portion m ′ have the same shape. Reference numeral 82 denotes a switching bushing interposed between the switching valve case 45 and the switching display ring 81. Further, the switching valve case 45 is provided between the portion where the first communication hole 45a and the second communication hole 45b are located and the end portion 34a which is a connection portion between the end portion 35a of the thermo body 60. In addition, an inward ring-shaped flange 45h having an inner diameter smaller than that of the other portion is provided.
４７は、切替ユニット３４の内ケースとしての切替ガイド（第２の固定部材）で、図３、図４、図５に示すように筒状であり、切替弁ケース４５内に水栓本体３１と同軸で横置き状態で設けられている。そして、切替ガイド４７のリング状の一端面Ｓ’が前記リング状フランジ４５ｈの下流面Ｓ’’’に当接している。切替ガイド４７の胴４７ａは、切替弁ケース４５の胴の肉厚と同程度の肉厚ｄを有する。この切替ガイド４７は、軟質の樹脂製であり切替弁ケース４５の内壁に０リングなどのシール部材４７ｃを介して固定されている。４８は、切替ガイド４７の前記胴４７ａに設けた切欠きである。この切欠き４８は、図５（Ｂ）、図３に示すように、四隅の角は丸みをおびているとともに、真ん中がくびれた平面視略矩形の形状をなし、胴４７ａの円周方向に長く、胴の長手方向に短いように形成されている。また、前記切欠き４８は、図５（Ａ）に示すように、前記胴４７ａを円周角で１９０°程度に円周方向に切り裂いて形成されている。この切欠き４８には、異形オーリング４９が嵌込まれる。 Reference numeral 47 denotes a switching guide (second fixing member) as an inner case of the switching unit 34, which has a cylindrical shape as shown in FIGS. 3, 4, and 5, and has a faucet body 31 and a switching valve case 45. It is provided in the state of being placed on the same axis. The ring-shaped end surface S 'of the switching guide 47 is in contact with the downstream surface S "' of the ring-shaped flange 45h. The body 47 a of the switching guide 47 has a thickness d that is approximately the same as the thickness of the body of the switching valve case 45. The switching guide 47 is made of a soft resin, and is fixed to the inner wall of the switching valve case 45 via a seal member 47c such as a 0 ring. Reference numeral 48 denotes a notch provided in the body 47 a of the switching guide 47. As shown in FIG. 5B and FIG. 3, the notch 48 has a rounded corner and a substantially rectangular shape with a narrowed center, and is long in the circumferential direction of the body 47a. It is formed to be short in the longitudinal direction of the barrel. Further, as shown in FIG. 5A, the notch 48 is formed by cutting the body 47a in the circumferential direction at a circumferential angle of about 190 °. A modified O-ring 49 is fitted into the notch 48.
前記異形オーリング４９は、図１１に示すように、メガネの枠のように左右に輪５０，５０が形成され、切欠き４８に嵌込み可能な外形形状を有する。そして、輪５０および５０の開口５０ａおよび５０ａにはそれぞれ図１２に示すようなガイドリング５１および５１を嵌込んだ状態で、異形オーリング４９が切欠き４８に嵌込まれる。ガイドリング５１，５１無しで異形オーリング４９を切欠き４８に嵌込むと、切欠き４８から異形オーリング４９が外れ易くなるおそれがあるからで、この発明では、異形オーリング４９を、ガイドリング５１と切欠き４８の端面４８ａとで挟む構成を採用している。５１ａは、ガイドリング５１の開口である。 As shown in FIG. 11, the odd-shaped O-ring 49 has wheels 50 and 50 formed on the left and right like a frame of glasses, and has an outer shape that can be fitted into the notch 48. Then, the deformed O-ring 49 is fitted into the notch 48 with the guide rings 51 and 51 as shown in FIG. 12 fitted in the openings 50a and 50a of the rings 50 and 50, respectively. If the odd-shaped O-ring 49 is fitted into the notch 48 without the guide rings 51, 51, the odd-shaped O-ring 49 may be easily detached from the notch 48. A configuration is adopted in which 51 is sandwiched between the end surface 48 a of the notch 48. 51 a is an opening of the guide ring 51.
上述した切替弁ケース４５および切替ガイド４７は、水栓本体３１に対して固定されている筒状の固定部材である。 The switching valve case 45 and the switching guide 47 described above are cylindrical fixing members that are fixed to the faucet body 31.
一方、筒状の回動部材としての金属製の切替バルブ５３が、前記切替ハンドル３２の切替操作により切替栓棒５４（図１４参照）を介して、水栓本体３１の軸芯Ｘのまわりで前記切替ガイド４７内を、図４（Ａ）に示す状態から時計方向（Ａ方向）に回動して図４（Ｂ）に示す状態に切り替ったり、逆に、図４（Ｂ）に示す状態から反時計方向（Ｂ方向）に回動して図４（Ａ）に示す状態に切り替ったりするよう構成されている。
なお、切替バルブ５３は、下流端に一対の嵌合用切欠５３ｇを有する。また、切替栓棒５４の先端には、前記嵌合用切欠５３ｇに嵌合して切替バルブ５３を回動させるための嵌合突起５４ｇを有して切替バルブ５３の下流側開口５３ｒを閉塞するディスク体５４ｔが設けられている。
On the other hand, a metallic switching valve 53 as a cylindrical rotating member is moved around the axis X of the faucet body 31 via the switching plug rod 54 (see FIG. 14) by the switching operation of the switching handle 32. The inside of the switching guide 47 is rotated clockwise (A direction) from the state shown in FIG. 4 (A) to switch to the state shown in FIG. 4 (B), or conversely, shown in FIG. 4 (B). It is configured to turn counterclockwise (B direction) from the state and switch to the state shown in FIG.
The switching valve 53 has a pair of fitting notches 53g at the downstream end. Further, a disc that closes the downstream opening 53r of the switching valve 53 by having a fitting projection 54g that fits in the fitting notch 53g and rotates the switching valve 53 at the tip of the switching plug rod 54. A body 54t is provided.
前記切替バルブ５３は、筒状で、切替ガイド４７や切替弁ケース４５の胴の肉厚ｄよりも薄く形成された胴Ｍよりなり、切替ガイド４７内に水栓本体３１と同軸で横置き状態で設けられている。この胴Ｍは、切替ガイド４７の内周面に摺動可能に嵌込まれる大きさに形成されている。切替バルブ５３は切替弁ケース４５と同様、胴Ｍの円周方向に沿って所定の大きさの一対の略半月形に形成された連通孔が二組用意されている。５３ａ，５３ａは、一組目の一対の第３の連通孔で、ガイドリング５１の開口５１ａを介して例えば第１の連通孔４５ａ，４５ａに連通する〔図４（Ａ）参照〕。また、５３ｂ，５３ｂは、二組目の一対の第４の連通孔で、ガイドリング５１の開口５１ａを介して例えば第２の連通孔４５ｂ，４５ｂに連通する〔図４（Ｂ）参照〕。この実施形態では、前記連通孔４５ａ、連通孔４５ｂ、連通孔５３ａ、連通孔５３ｂは同一形状をなし、これらは略半月形に形成されている。そして、図３に示すように、一組の例えば第３の連通孔５３ａ，５３ａ同士は、円の中心を通る平面視細長の矩形形状の仕切り部分ｎで仕切られているが、この細長の仕切り部分ｎは、仕切り部分ｎの長手方向が水栓本体３１の軸芯Ｘの方向に直交する方向に沿うよう設けられている。第４の連通孔５３ｂ，５３ｂを仕切る、円の中心を通る平面視細長の矩形形状の仕切り部分ｎ’も、前記仕切り部分ｎと同様、仕切り部分ｎ’の長手方向が水栓本体３１の軸芯Ｘの方向に直交する方向に沿うよう設けられている。そして、仕切り部分ｍ、仕切り部分ｍ’、仕切り部分ｎ、仕切り部分ｎ’は同一形状をなす。 The switching valve 53 is cylindrical and includes a cylinder M formed thinner than the thickness d of the cylinder of the switching guide 47 and the switching valve case 45. The switching valve 53 is placed horizontally in the switching guide 47 coaxially with the faucet body 31. Is provided. The body M is formed in a size that is slidably fitted into the inner peripheral surface of the switching guide 47. Similar to the switching valve case 45, the switching valve 53 is provided with two sets of communication holes formed in a pair of substantially meniscus shapes of a predetermined size along the circumferential direction of the trunk M. 53a and 53a are a pair of third communication holes in a first set, and communicate with, for example, the first communication holes 45a and 45a through the opening 51a of the guide ring 51 (see FIG. 4A). Further, 53b and 53b are a second pair of fourth communication holes, and communicate with, for example, the second communication holes 45b and 45b through the opening 51a of the guide ring 51 [see FIG. 4B]. In this embodiment, the communication hole 45a, the communication hole 45b, the communication hole 53a, and the communication hole 53b have the same shape, and these are formed in a substantially half-moon shape. As shown in FIG. 3, the pair of third communication holes 53a, 53a, for example, is partitioned by a rectangular partition portion n that is elongated in plan view and passes through the center of the circle. The portion n is provided such that the longitudinal direction of the partition portion n is along the direction orthogonal to the direction of the axis X of the faucet body 31. As with the partition portion n, the partition portion n ′ having a rectangular shape in plan view that passes through the center of the circle and partitions the fourth communication holes 53b and 53b is arranged such that the longitudinal direction of the partition portion n ′ is the axis of the faucet body 31. It is provided along the direction orthogonal to the direction of the core X. The partition part m, the partition part m ', the partition part n, and the partition part n' have the same shape.
このように、切替バルブ５３の仕切り部分ｎ，ｎ’の長手方向が摺動方向に沿いながら切替バルブ５３は切替ガイド４７の内周面を摺動しながら回動するので、最小摺動面積でもって摺動による摩擦を最も小さくしながら切替バルブ５３を摺動させることができ、仕切り部分ｎ，ｎ’の長手方向を、軸芯Ｘの方向に沿った形のように、前記直交する方向以外の方向に沿った形で設ける場合に比して、切替バルブ５３を回動し易くできる。 As described above, the switching valve 53 rotates while sliding on the inner peripheral surface of the switching guide 47 while the longitudinal direction of the partition portions n and n ′ of the switching valve 53 is along the sliding direction. Therefore, the switching valve 53 can be slid while minimizing the friction caused by sliding, and the longitudinal direction of the partition portions n and n ′ is other than the orthogonal direction as in the shape along the direction of the axis X. The switching valve 53 can be easily rotated as compared with the case where the switching valve 53 is provided along the direction.
また、切替弁ケース４５の仕切り部分ｍ，ｍ’を水栓本体３１の軸芯Ｘの方向に沿った形で設ける方が、組付けにあたり、切替ガイド４７を切替弁ケース４５内に入り易くできる。これに対し、仕切り部分ｍ，ｍ’を水栓本体３１の軸芯Ｘの方向に直交する方向に沿った形で設けると、切替ガイド４７にセットされている異形オーリング４９やガイドリング５１が仕切り部分ｍ，ｍ’に引っ掛かり易くなり、切替ガイド４７を切替弁ケース４５内に好ましい状態で入れるのが難しくなる。 In addition, when the partition portions m and m ′ of the switching valve case 45 are provided along the direction of the axis X of the faucet body 31, the switching guide 47 can easily enter the switching valve case 45 during assembly. . On the other hand, when the partition parts m and m ′ are provided along the direction orthogonal to the direction of the axis X of the faucet body 31, the modified O-ring 49 and the guide ring 51 set in the switching guide 47 are provided. It becomes easy to get caught in the partition parts m and m ′, and it becomes difficult to put the switching guide 47 into the switching valve case 45 in a preferable state.
而して、この発明の弁機構は、筒状の切替バルブ５３の胴Ｍの円周方向に沿って所定の大きさの一対の第３の連通孔５３ａ，５３ａおよび一対の第４の連通孔５３ｂ，５３ｂを設けたので、弁機構の構成部材として従来用いられていたような所定の大きさの連通用長孔が内側に形成されていたセラミック製の可動ディスク、セラミック製の固定ディスクに比して切替バルブ５３の外径を小径にでき、ひいては水栓本体１の外径を３４ｍｍと小径にできる。このため、サーモ型湯水混合水栓をコンパクト化できる。 Thus, the valve mechanism of the present invention has a pair of third communication holes 53a, 53a and a pair of fourth communication holes having a predetermined size along the circumferential direction of the body M of the cylindrical switching valve 53. 53b and 53b are provided, compared with a ceramic movable disk and a ceramic fixed disk in which a communication hole having a predetermined size is formed on the inner side, which is conventionally used as a component member of the valve mechanism. Thus, the outer diameter of the switching valve 53 can be reduced, and the outer diameter of the faucet body 1 can be reduced to 34 mm. For this reason, a thermo-type hot and cold water mixing faucet can be made compact.
また、切替バルブ５３は金属製であるので、前記セラミック製の可動ディスクに比して安価である。また、切替ガイド４７は樹脂製であるので、前記セラミック製の固定ディスクに比して安価である。なお、切替ガイド４７を軟質の樹脂製としたのは、金属製の切替バルブ５３が回動し易いためである。 Further, since the switching valve 53 is made of metal, it is less expensive than the ceramic movable disk. Further, since the switching guide 47 is made of resin, it is less expensive than the ceramic fixed disk. The reason why the switching guide 47 is made of soft resin is that the metallic switching valve 53 is easy to rotate.
一方、前記温調ユニット３５は、図１、図２、図６に示すような、水栓本体３１内に設けられた筒状のサーモ本体６０を有し、このサーモ本体６０には、サーモワックス６１が内蔵されるとともにサーモワックス６１が膨張したときに伸び、また、サーモワックス６１が収縮したときに縮むピストン６２を有するサーモエレメント６３が収容され、前記サーモ本体６０の胴Ｎには一つの湯導入孔６４〔図６（Ｂ）参照〕および複数個の水導入孔６５〔図６（Ｃ）参照〕が形成され、かつ、前記サーモ本体６０には、温調ハンドル３３によって予め設定してある混合水の温度とは異なる混合水の温度を前記サーモエレメント６３が感温するとサーモワックス６１が膨張または収縮して前記ピストン６２が伸びまたは縮むことで、前記水栓本体３１の軸芯方向に前記サーモエレメント６３と共に変位し、前記湯導入孔６４とによって形成される給湯側通路のすき間２００および前記水導入孔６５とによって形成される給水側通路のすき間２０１を調整しうるサーモバルブ７０が内蔵されており、また、このサーモ本体６０の端部３５ａは、前記切替ユニット３４の端部３４ａに接続可能に構成されている。
６９は、ゴム製のスリーブで、サーモワックス６１およびピストン６２間に介装されている。
６７は、温調ハンドル３３およびサーモ本体６０間に設けた筒状の固定ハウジングで、水栓本体３１と同軸で横置き状態で設けられている。固定ハウジング６７は、内周面の上下位置にガイド溝６７ａ，６７ｂを有する。
９０は、前記固定ハウジング６７内に設けられたスライドガイド体で、温調ハンドル３３を水栓本体３１の軸芯Ｘまわりに回動させることによって水栓本体３１の軸芯Ｘ方向に沿って直線的に進退移動できるよう構成されている。スライドガイド体９０は、サーモ本体側に向いた凹所９０ｉを有するプレート部材９０ａと、後述するスクリュ棒３３ｅが噛合する連続歯９０ｂが形成された溝９０ｃを温調ハンドル側に向けた状態で有するスクリュ棒受け部材９０ｅと、両部材９０ａ，９０ｅ間に介装されるバネ９０ｆと、このバネ９０ｆを介して両部材９０ａ，９０ｅを結合する結合線材９０ｇとを備えている。プレート部材９０ａの前記凹所９０ｉの底面には、バネ９１の付勢力によってピストン先端６２ｆが常時当接している。前記スクリュ棒３３ｅは、栓棒３３ｄの回動運動により軸芯Ｘ方向に沿って直線的に進退移動するよう温調ハンドル３３の栓棒３３ｄとスプライン結合されている。また、スクリュ棒受け部材９０ｅは、前記ガイド溝６７ａ，６７ｂに係合する上下一対の係合突起片９０ｊを有する。プレート部材９０ａも前記ガイド溝６７ａ，６７ｂに係合する上下一対の係合突起片９０ｋを有する。更に、例えば上係合突起片９０ｊは、温調ハンドル側からみた図２２に示すように、結合線材９０ｇの一端を係止する係止面部Ｔを有し、また、この係止面部Ｔを挟むように前記上ガイド溝６７ａに係合する一対の係合突起片部分９０ｊ’，９０ｊ’を有する。一方、下係合突起片９０ｊも、図２２に示すように、結合線材９０ｇの他端を係止する係止面部Ｔ’を有する。また、プレート部材９０ａは、サーモ本体側からみた図２１に示すように、結合線材９０ｇの折り曲げ部分９０ｇ’が嵌込む環状溝９０ａ’を有する。
これにより、温調ハンドル３３の前記軸芯Ｘまわりの回動操作によって前記スライドガイド部材９０が進退移動され、前記ピストン６２を介して前記サーモバルブ７０の設定位置を可変に調整し、これにより 温調ハンドル３３によって設定される混合水の温度になるよう前記給湯側通路のすき間２００および給水側通路のすき間２０１が調整される。
８４は、温調ガイド、８５は、温調表示リングである。
On the other hand, the temperature control unit 35 has a cylindrical thermo main body 60 provided in the faucet main body 31 as shown in FIGS. 1, 2, and 6, and the thermo main body 60 includes a thermo wax. 61 is housed and accommodates a thermo element 63 having a piston 62 that expands when the thermowax 61 expands and contracts when the thermowax 61 contracts. An introduction hole 64 (see FIG. 6B) and a plurality of water introduction holes 65 (see FIG. 6C) are formed, and the thermo body 60 is preset by the temperature control handle 33. When the thermo-element 63 senses the temperature of the mixed water different from the temperature of the mixed water, the thermowax 61 expands or contracts and the piston 62 extends or contracts, so that the faucet body 3 It is possible to adjust the gap 200 of the hot water supply side passage formed by the hot water introduction hole 64 and the gap 201 of the water supply side passage formed by the water introduction hole 65 by being displaced together with the thermo element 63 in the axial direction. A thermo valve 70 is incorporated, and an end portion 35a of the thermo body 60 is configured to be connectable to the end portion 34a of the switching unit 34.
A rubber sleeve 69 is interposed between the thermo wax 61 and the piston 62.
67 is a cylindrical fixed housing provided between the temperature control handle 33 and the thermo main body 60, and is provided in a state of being placed horizontally coaxially with the faucet main body 31. The fixed housing 67 has guide grooves 67a and 67b at the upper and lower positions on the inner peripheral surface.
Reference numeral 90 denotes a slide guide body provided in the fixed housing 67. The temperature control handle 33 is rotated about the axis X of the faucet body 31 to rotate linearly along the axis X direction of the faucet body 31. It can be moved forward and backward. The slide guide body 90 has a plate member 90a having a recess 90i facing the thermo body and a groove 90c in which continuous teeth 90b with which a screw rod 33e described later is engaged are directed to the temperature control handle. A screw rod receiving member 90e, a spring 90f interposed between the members 90a and 90e, and a connecting wire 90g for connecting the members 90a and 90e via the spring 90f are provided. The piston tip 62f is always in contact with the bottom surface of the recess 90i of the plate member 90a by the biasing force of the spring 91. The screw rod 33e is spline-coupled with the plug rod 33d of the temperature control handle 33 so as to linearly advance and retreat along the axis X direction by the rotational movement of the plug rod 33d. The screw rod receiving member 90e has a pair of upper and lower engaging projections 90j that engage with the guide grooves 67a and 67b. The plate member 90a also has a pair of upper and lower engaging protrusions 90k that engage with the guide grooves 67a and 67b. Further, for example, as shown in FIG. 22 as viewed from the temperature adjustment handle side, the upper engagement protrusion piece 90j has a locking surface portion T that locks one end of the coupling wire 90g, and sandwiches the locking surface portion T. As described above, the upper guide groove 67a has a pair of engaging projection piece portions 90j ′ and 90j ′. On the other hand, as shown in FIG. 22, the lower engaging protrusion piece 90j also has a locking surface portion T ′ for locking the other end of the connecting wire 90g. Further, the plate member 90a has an annular groove 90a ′ into which the bent portion 90g ′ of the coupling wire 90g is fitted, as shown in FIG. 21 viewed from the thermo body side.
As a result, the slide guide member 90 is moved forward and backward by the turning operation of the temperature control handle 33 around the axis X, and the setting position of the thermo valve 70 is variably adjusted via the piston 62. The gap 200 in the hot water supply side passage and the gap 201 in the water supply side passage are adjusted so that the temperature of the mixed water set by the adjustment handle 33 is reached.
84 is a temperature control guide, and 85 is a temperature control display ring.
以下、この発明の特徴的構成について説明する。 The characteristic configuration of the present invention will be described below.
前記サーモバルブ７０は、筒状のサーモバルブ本体７１と、このサーモバルブ本体７１よりも小径の筒状の跨ぎ部材７２との二部材より構成されている。 The thermo valve 70 includes two members, a cylindrical thermo valve main body 71 and a cylindrical straddling member 72 having a smaller diameter than the thermo valve main body 71.
サーモバルブ本体７１は、前記サーモ本体６０の内壁に摺動可能な状態で、前記サーモエレメント６３に連結可能に外嵌する正面視環状の連結部７３を上流側に有し、開放端Ｊが形成された胴部７４を下流側に有する。 The thermo valve main body 71 has an annular connecting portion 73 on the upstream side that is fitted to the thermo element 63 so as to be slidable on the inner wall of the thermo main body 60, and an open end J is formed. The body portion 74 is provided on the downstream side.
また、跨ぎ部材７２は、前記給湯側通路のすき間２００を跨ぐ形で前記サーモバルブ本体７１に連結可能に内嵌している。この実施形態では、跨ぎ部材７２が、サーモバルブ本体７１の胴部７４の上流側内周面に形成された雌ねじＲにねじ結合されている。 The straddling member 72 is fitted in the thermo valve body 71 so as to be connectable with the gap 200 of the hot water supply side passage. In this embodiment, the straddling member 72 is screwed to a female screw R formed on the upstream inner peripheral surface of the body portion 74 of the thermo valve main body 71.
そして、これら二部材７１および７２の中心軸Ｘ1 およびＸ2 をそれぞれ前記水栓本体３１の軸芯Ｘに一致させた状態でサーモバルブ７０はサーモ本体６０内に設置されている。 The thermo valve 70 is installed in the thermo body 60 with the central axes X 1 and X 2 of the two members 71 and 72 aligned with the axis X of the faucet body 31, respectively.
更に、前記サーモバルブ本体７１は、前記サーモエレメントとの連結孔７６を前記連結部７３の中央に有し、更に、連結孔７６は内面に雌ねじを有する一方、この雌ねじに螺合する雄ねじをサーモエレメント６３に設けた連結部８０は有する。前記連結部７３は、前記給水側通路を通ってきた水を前記給湯側通路を通ってきた湯と前記開放端Ｊの直下流側で合流させるべく複数の水孔７７を前記連結孔７６のまわりに有する。 Further, the thermo valve main body 71 has a connecting hole 76 for connection with the thermo element at the center of the connecting portion 73. Further, the connecting hole 76 has a female screw on the inner surface, and a male screw screwed into the female screw is provided on the thermo screw. The connection part 80 provided in the element 63 has. The connecting portion 73 has a plurality of water holes 77 around the connecting hole 76 so that the water passing through the water supply side passage merges with the hot water passing through the hot water supply side passage on the downstream side of the open end J. Have.
また、前記跨ぎ部材７２は、前記サーモバルブ本体７１との連結部７８を上流側に有し、下流側に前記給湯側通路を通ってきた湯が通過する複数の湯孔８０が形成された胴部８１を有する。連結部７８は、サーモバルブ本体７１の前記雌ねじＲに螺合する雄ねじＴを有する。 Further, the straddling member 72 has a connecting portion 78 with the thermo valve body 71 on the upstream side, and a trunk formed with a plurality of hot water holes 80 through which the hot water passing through the hot water supply side passage passes on the downstream side. Part 81. The connecting portion 78 has a male screw T that is screwed into the female screw R of the thermo valve body 71.
そして、前記サーモエレメント６３は、サーモワックス６１が内蔵されるサーモワックス内蔵部６１ａにおける水栓本体３１の軸芯方向に沿う領域Ｑの最上流端３００が前記跨ぎ部材７２の前記湯孔８０の位置に一致するよう設置されている。 In the thermo element 63, the most upstream end 300 of the region Q along the axial direction of the faucet body 31 in the thermo wax built-in portion 61a in which the thermo wax 61 is built is positioned at the position of the hot hole 80 of the straddling member 72. It is installed to match.
ここで、サーモエレメントは、サーモワックスが内蔵される領域の最上流端が跨ぎ部材の湯孔の位置に一致するよう設置されているとは、図８（Ａ）に示される跨ぎ部材７２の湯孔８０の位置が、図２に示すように、サーモワックス６１が内蔵される領域の最上流端３００に一致するようサーモエレメント６３は設置されることで、最上流端３００が湯孔８０の位置にほぼ一致する場合も含む。Here, the thermo element is installed so that the uppermost stream end of the region where the thermo wax is incorporated coincides with the position of the hot water hole of the straddling member. The hot water of the straddling member 72 shown in FIG. As shown in FIG. 2, the thermo element 63 is installed so that the position of the hole 80 coincides with the most upstream end 300 of the region in which the thermo wax 61 is incorporated, so that the most upstream end 300 is located at the position of the hot water hole 80. It also includes the case that almost matches.
温調ユニット３５の自動温度調節動作は以下の通りである。
温調ハンドル３３を水栓本体３１の軸芯Ｘまわりに回動させて所定温度（例えば４０℃）に設定すると、給湯側通路のすき間２００および給水側通路のすき間２０１を通ってきたそれぞれ湯および水がサーモエレメント６３のまわりで混合され、 サーモエレメント６３が働き、４０℃の混合水が吐水管またはシャワーホースへ流れる。
The automatic temperature control operation of the temperature control unit 35 is as follows.
When the temperature control handle 33 is rotated around the axis X of the faucet body 31 and set to a predetermined temperature (for example, 40 ° C.), the hot water that has passed through the gap 200 in the hot water supply side passage and the gap 201 in the water supply side passage respectively Water is mixed around the thermo element 63, the thermo element 63 works, and 40 ° C. mixed water flows to the water discharge pipe or the shower hose.
そして、混合水の温度が４０℃より上昇した場合、これをサーモエレメント６３が感温してサーモエレメント６３内のサーモワックス６１が膨張してピストン６２を伸ばし（押し出し）、給水側通路のすき間２０１を広げるとともに、給湯側通路のすき間２００を狭めるようサーモバルブ７０は、水栓本体３１の軸芯方向にサーモエレメント６３と共に変位し、混合水の温度が下がり、ほぼ４０℃に調節できる。 When the temperature of the mixed water rises above 40 ° C., the thermo element 63 senses the temperature, and the thermo wax 61 in the thermo element 63 expands to extend (push out) the piston 62, and the gap 201 in the water supply side passageway. The thermo valve 70 is displaced together with the thermo element 63 in the axial direction of the faucet body 31 so as to narrow the gap 200 in the hot water supply passage, and the temperature of the mixed water is lowered and can be adjusted to approximately 40 ° C.
また、混合水の温度が４０℃より降下した場合、これをサーモエレメント６３が感温してサーモエレメント６３内のサーモワックス６１が収縮してピストン６２を縮め、給水側通路のすき間２０１を狭めるとともに、給湯側通路のすき間２００を広げるようサーモエレメント６３と共にサーモバルブ７０が変位し、混合水の温度が上がり、ほぼ４０℃に調節できる。 When the temperature of the mixed water drops below 40 ° C., the thermo element 63 senses the temperature, the thermo wax 61 in the thermo element 63 contracts and the piston 62 contracts, and the gap 201 in the water supply side passage is narrowed. The thermo valve 70 is displaced together with the thermo element 63 so as to widen the gap 200 in the hot water supply side passage, the temperature of the mixed water rises and can be adjusted to approximately 40 ° C.
而して、図３６に示したサーモ型湯水混合水栓では、サーモワックス１６が内蔵されるサーモワックス内蔵部１６ａにおける水栓本体３の軸芯方向に沿う領域Ｑ’の最上流端３００’が湯水の混合地点より極めて遠くの上流側に位置していたので、サーモワックス１６を膨張あるいは収縮させるための感温速度がきわめて遅かったのに対し、この発明では、跨ぎ部材７２の湯孔８０の位置が、図２に示すように、サーモワックス６１が内蔵される領域の最上流端３００に一致するようサーモエレメント６３は設置されるので、温調ユニット３５の自動温度調節動作を迅速に行える。 Thus, in the thermo-type hot and cold water mixing faucet shown in FIG. 36, the uppermost stream end 300 ′ in the region Q ′ along the axial direction of the faucet body 3 in the thermowax built-in portion 16a in which the thermowax 16 is built in. The temperature sensing speed for expanding or contracting the thermowax 16 was extremely slow because it was located on the upstream side very far from the hot water mixing point, whereas in the present invention, the temperature of the hot water hole 80 of the straddling member 72 is low. As shown in FIG. 2, since the thermo element 63 is installed so that the position coincides with the most upstream end 300 of the region where the thermo wax 61 is incorporated, the automatic temperature adjustment operation of the temperature adjustment unit 35 can be performed quickly.
ところで、温調ハンドル３３を水栓本体３１の軸芯Ｘまわりに回動させて所定温度（例えば４０℃）に設定する前の状態は、水栓本体３１内の環状流路１１２を流れる水の水温だけをサーモエレメント６３は感温しているので、サーモエレメント６３内のサーモワックス６１が収縮してピストン６２は縮んでいる。つまり、温調ハンドル３３は０℃を示しているので、図１に示すようにサーモバルブ本体７１によって湯導入孔６４が閉じられており、給湯側通路のすき間２００はなく、一方、給水側通路のすき間２０１（図２参照）は最も広い状態にある。しかし、上述したように、前記プレート部材９０ａの前記凹所９０ｉの底面には、前記バネ９１の付勢力によってピストン先端６２ｆが常時当接していることから、ピストン６２は縮みながら前記凹所９０ｉの底面に当接している。 By the way, the state before the temperature adjustment handle 33 is rotated around the axis X of the faucet body 31 and set to a predetermined temperature (for example, 40 ° C.) is the water flowing through the annular channel 112 in the faucet body 31. Since the thermo element 63 senses only the water temperature, the thermo wax 61 in the thermo element 63 contracts and the piston 62 contracts. That is, since the temperature control handle 33 indicates 0 ° C., the hot water introduction hole 64 is closed by the thermo valve body 71 as shown in FIG. 1, and there is no gap 200 in the hot water supply side passage, whereas the water supply side passage The gap 201 (see FIG. 2) is in the widest state. However, as described above, since the piston tip 62f is always in contact with the bottom surface of the recess 90i of the plate member 90a by the biasing force of the spring 91, the piston 62 is contracted while the piston 90 is contracted. It is in contact with the bottom.
そして、この状態で温調ハンドル３３を例えば４０℃に設定するとともに、切替ハンドル３２を混合水吐出状態にすると、ピストン６２が伸びきる前に前記サーモバルブ７０が前記バネ９１の付勢力によって給水側通路のすき間２０１を狭め、かつ、給湯側通路のすき間２００を広くする方向に変位することになる。そのため、瞬時ではあるが熱湯が吐水管から吐水する。これは、複雑な経路をたどる水流路、湯流路および混合水流路を形成する大径の固定ディスクおよび可動ディスクよりなる弁機構を用いずに簡易な構成の前記弁機構５３，４７，４５を採用したので、給湯側通路のすき間２００を通る前記湯流路１１４が複雑な経路をたどることなく水流入路１１１に直ぐさま合流して熱湯と水が十分混ざりきらないうちに４０℃よりもはるかに熱い混合水が、切替バルブ５３の第３の連通孔５３ａを通り吐水管接続口へ流出するからである。この発明では、前記問題を図２３、図２４に示す実施形態で解決している。 In this state, when the temperature adjustment handle 33 is set to 40 ° C., for example, and the switching handle 32 is set to the mixed water discharge state, the thermo valve 70 is supplied to the water supply side by the urging force of the spring 91 before the piston 62 is fully extended. The gap 201 in the passage is narrowed and the gap 200 in the hot water supply side passage is widened. Therefore, although hot, hot water discharges from the water discharge pipe. This is because the valve mechanisms 53, 47, and 45 having a simple configuration without using a valve mechanism including a large-diameter fixed disk and a movable disk that form a water flow path, a hot water flow path, and a mixed water flow path that follow complicated paths. Since it was adopted, the hot water flow path 114 passing through the gap 200 in the hot water supply side passage immediately joins the water inflow path 111 without following a complicated path, and the hot water and the water are not sufficiently mixed before the temperature exceeds 40 ° C. This is because the hot mixed water flows out through the third communication hole 53a of the switching valve 53 to the water discharge pipe connection port. In the present invention, the above problem is solved by the embodiment shown in FIGS.
すなわち、図２３、図２４は、混合水を得るために前記温調ハンドル３３を回動させたとき、前記ピストン６２が伸びきらないうちに前記サーモバルブ７０が前記給湯側通路のすき間２００を大きくする方向に変位して熱湯が吐水するのを防止するように構成されているこの発明の第２の実施形態を示す。なお、図２３、図２４において、図１〜図２２に示した符号と同一のものは、同一または相当物である。 23 and 24, when the temperature adjustment handle 33 is rotated to obtain mixed water, the thermo valve 70 increases the gap 200 in the hot water supply side passage before the piston 62 is fully extended. The 2nd Embodiment of this invention comprised so that it may be displaced to the direction to perform and it prevents hot water from discharging water is shown. 23 and 24, the same reference numerals as those shown in FIGS. 1 to 22 are the same or equivalent.
図２３、図２４において、９３は、上流開口９３ｊを有する大径部９３ａと、この大径部９３ａよりも長い胴を有する小径部９３ｂとよりなり筒状部材で、給湯側通路のすき間２００および給水側通路のすき間２０１を通ってきたそれぞれ湯および水が混合する、サーモ本体６０の直下流側で前記切替栓棒５４のディスク体５４ｔまでの領域に設けられている。具体的には、筒状部材９３は、小径部９３ｂが切替バルブ５３内に位置し、大径部９３ａが切替弁ケース４５内と切替ガイド４７内にわたって位置するよう、水栓本体３１と同軸で横置き状態で設けられている。 23 and 24, 93 is a cylindrical member comprising a large-diameter portion 93a having an upstream opening 93j and a small-diameter portion 93b having a trunk longer than the large-diameter portion 93a. The hot water and water that have passed through the gap 201 in the water supply side passage are mixed in the region immediately downstream of the thermo body 60 and to the disk body 54t of the switching plug bar 54. Specifically, the cylindrical member 93 is coaxial with the faucet body 31 so that the small diameter portion 93 b is located in the switching valve 53 and the large diameter portion 93 a is located in the switching valve case 45 and the switching guide 47. It is provided in a horizontal position.
筒状部材９３は、給湯側通路のすき間を通ってきた湯と給水側通路のすき間を通ってきた水とを迂回させながら混合させる機能を持つ。 The tubular member 93 has a function of mixing hot water that has passed through the gap in the hot water supply side passage and water that has passed through the gap in the water supply side passage while detouring.
すなわち、水、湯をサーモ本体６０の側から直接、切替バルブ５３に設けた第３の連通孔５３ａ，５３ａおよび第４の連通孔５３ｂ，５３ｂに導入させるのではなく、水、湯あるいは混合水をサーモ本体６０の側から迂回させてから導入させるための迂回流路Ｒを形成するためのものである。 That is, water, hot water, or mixed water is not introduced directly from the thermo body 60 side into the third communication holes 53a, 53a and the fourth communication holes 53b, 53b provided in the switching valve 53. Is to form a detour channel R for detouring from the thermo body 60 side and then introducing it.
前記大径部９３ａは、切替弁ケース４５の前記小径部分４５ｈに係止する外向きのリング状フランジＶを有し、このフランジＶがサーモ本体６０の端部３５ａのリング状先端部分Ｓの先端面と切替弁ケース４５の前記内向きのリング状フランジ４５ｈの上流面Ｓ’’とで挟まれることにより筒状部材９３は、切替弁ケース４５、切替ガイド４７および切替バルブ５３の領域にわたり固定設置されている。前記上流開口９３ｊは、前記リング状フランジＶによって形成されている。 The large-diameter portion 93 a has an outward ring-shaped flange V that engages with the small-diameter portion 45 h of the switching valve case 45, and this flange V is the tip of the ring-shaped tip portion S of the end portion 35 a of the thermo body 60. The tubular member 93 is fixedly installed over the area of the switching valve case 45, the switching guide 47 and the switching valve 53 by being sandwiched between the surface and the upstream surface S ″ of the inwardly ring-shaped flange 45h of the switching valve case 45 Has been. The upstream opening 93j is formed by the ring-shaped flange V.
前記小径部９３ｂは、下流開口９３ｍを有するとともに、大径部９３ａとの連設部位に、前記迂回流路を経た混合水を攪拌する複数の攪拌孔９４を円周方向に所定間隔おいて有する。 The small-diameter portion 93b has a downstream opening 93m, and has a plurality of stirring holes 94 that stir the mixed water that has passed through the detour channel at predetermined intervals in the circumferential direction at the connection portion with the large-diameter portion 93a. .
更に、切替弁ケース４５の第１の連通孔４５ａ，４５ａおよび第２の連通孔４５ｂの位置に対応する位置と切替栓棒５４のディスク体５４ｔとの間に前記下流開口９３ｍがくるよう前記小径部９３ｂが設けられている。 Further, the small diameter is set so that the downstream opening 93m is located between a position corresponding to the positions of the first communication holes 45a and 45a and the second communication hole 45b of the switching valve case 45 and the disk body 54t of the switching plug rod 54. A portion 93b is provided.
而して、給湯側通路のすき間２００を通ってきた湯と給水側通路のすき間２０１を通ってきた水とを迂回させながら混合する迂回流路Ｒをサーモ本体６０の直下流側に設けたので、混合水を得るために前記温調ハンドル３３を回動させたとき、前記ピストン６２が伸びきらないうちに前記サーモバルブ７０が前記給湯側通路２００のすき間を大きくする方向に変位しても熱湯が迂回流路Ｒを通る間に水と混合されるので、吐水管から熱湯が吐水するのを防止できる。 Thus, the bypass channel R for mixing the hot water that has passed through the gap 200 in the hot water supply side passage and the water that has passed through the gap 201 in the water supply side passage is provided immediately downstream of the thermo body 60. When the temperature control handle 33 is rotated to obtain mixed water, hot water is not affected even if the thermo valve 70 is displaced in a direction to increase the gap of the hot water supply side passage 200 before the piston 62 is fully extended. Is mixed with water while passing through the bypass channel R, it is possible to prevent hot water from being discharged from the water discharge pipe.
更に、迂回流路Ｒを経た混合水を筒状部材９３に設けた複数の攪拌孔９４で攪拌するので、熱湯と水を十分混合させることができ、混ざりきらないで設定温度よりもはるかに熱い混合水が吐水管から吐水する事態を効果的に防止できる。 Furthermore, since the mixed water that has passed through the bypass flow path R is stirred by the plurality of stirring holes 94 provided in the cylindrical member 93, hot water and water can be sufficiently mixed, and are much hotter than the set temperature without being completely mixed. It is possible to effectively prevent the mixed water from discharging from the water discharge pipe.
なお、上記第１の実施形態において、サーモバルブ本体７１が給水側通路のすき間２０１（図２参照）を閉塞する場合は、サーモバルブ本体７１の連結部７３と胴部７４間に形成されるテーパ面７３ｆが、連結部７３に対向する形で設けられた給水側シート部材５００のリング状の樹脂製シート７３ｇのテーパ面７３ｈに当接する。図２５は、サーモエレメント貫通孔を中央に有する樹脂製シート７３ｇと、このシート７３ｇを支持するようサーモ本体６０（図１参照）内に固定されたリング状の樹脂製シート支持部材７３ｉと、このシート支持部材７３ｉの内周面に嵌込まれるＯリング７３ｊと、前記シート支持部材７３ｉにおけるシート取り付け側の外周面に嵌込まれるＯリング７３ｋとを示している。また、前記シート支持部材７３ｉは、サーモエレメント貫通孔を中央に有する。一方、図２６、図２７には、給水側シート部材５００よりもコスト安に成形できる給水側シート部材５００’が示されている。この給水側シート部材５００’は、一つのリング状の樹脂製シート７３ｉ’を備えている。前記シート７３ｉ’は、前記サーモエレメント貫通孔７３ｎを中央に有し、大径のＯリング７３ｋの嵌込み溝７３ｐを外周の中央に有し、サーモバルブ本体７１のテーパ面７３ｆが当接するテーパ面７３ｈを連結部７３に対向する状態で有する。また、サーモエレメント貫通孔７３ｎは、中央に小径のＯリング７３ｊの嵌込み部分７３ｑを有する。更に、前記給水側シート部材５００’は、前記嵌込み部分７３ｑに嵌込まれる前記小径のＯリング７３ｊと、このＯリング７３ｊを保護するためのリング状の樹脂製ワッシャ７３ｓと、Ｏリング７３ｊとワッシャ７３ｓがサーモエレメント貫通孔７３ｎから外側へ抜けるのを防止するリング状のステンレス製止め輪７３ｔとを備えている。すなわち、Ｏリング７３ｊをテーパ面７３ｈ側から嵌込み部分７３ｑおよびワッシャ７３ｓをこの順で嵌込み、続いて、テーパ面７３ｈ側から嵌込み部分７３ｑを止め輪７３ｔで覆う作業がほどこされる。したがって、ワッシャ７３ｓや止め輪７３ｔは安価に製作できるものであり、一つのリング状の樹脂製シート７３ｉ’を製作してこれに図２５に示したシート７３ｇとシート支持部材７３ｉの機能を兼ね備えさせたので、シート７３ｉ’を製作するための金型のコストは、二つのシート７３ｇとシート支持部材７３ｉを製作するための金型のコストに比して安価である。また、シート７３ｇとシート支持部材７３ｉは取り付けのために取り付け面側が複雑な構造を有するものであったが、シート７３ｉ’は一部材であるので、二部材７３ｇ，７３ｉの場合に比して構造をシンプルにでき、一部材でも複雑な形状のコスト高の金型を用いる必要はない。なお、図３６に示す給水側シート部材５００’’は、リング状の金属製シート７３ｘと、大径のＯリング７３ｙと、小径のＯリング７３ｚよりなり、サーモエレメント貫通孔７３ｎ’を切削加工で形成する必要があり、給水側シート部材５００に比して製作コストが高かった。 In the first embodiment, when the thermo valve main body 71 closes the gap 201 (see FIG. 2) of the water supply side passage, a taper formed between the connecting portion 73 and the trunk portion 74 of the thermo valve main body 71. The surface 73f comes into contact with the tapered surface 73h of the ring-shaped resin sheet 73g of the water supply side sheet member 500 provided to face the connecting portion 73. FIG. 25 shows a resin sheet 73g having a thermo-element through-hole in the center, a ring-shaped resin sheet support member 73i fixed in the thermo body 60 (see FIG. 1) to support the sheet 73g, An O-ring 73j fitted into the inner peripheral surface of the sheet support member 73i and an O-ring 73k fitted into the outer peripheral surface of the sheet support member 73i on the seat attachment side are shown. The sheet support member 73i has a thermo element through hole in the center. On the other hand, FIGS. 26 and 27 show a water supply side sheet member 500 ′ that can be formed at a lower cost than the water supply side sheet member 500. The water supply side sheet member 500 ′ includes a single ring-shaped resin sheet 73 i ′. The seat 73i ′ has the thermo element through hole 73n in the center, a fitting groove 73p of a large-diameter O-ring 73k in the center of the outer periphery, and a tapered surface with which the tapered surface 73f of the thermo valve body 71 abuts. 73h in a state facing the connecting portion 73. The thermo element through hole 73n has a fitting portion 73q of a small-diameter O-ring 73j at the center. Further, the water supply side sheet member 500 ′ includes the small-diameter O-ring 73j fitted into the fitting portion 73q, a ring-shaped resin washer 73s for protecting the O-ring 73j, and an O-ring 73j. A ring-shaped stainless steel retaining ring 73t is provided to prevent the washer 73s from coming out of the thermo element through hole 73n. That is, the O ring 73j is fitted from the tapered surface 73h side into the fitting portion 73q and the washer 73s in this order, and then the fitting portion 73q is covered from the tapered surface 73h side with the retaining ring 73t. Therefore, the washer 73s and the retaining ring 73t can be manufactured at a low cost, and a single ring-shaped resin sheet 73i ′ is manufactured to have the functions of the sheet 73g and the sheet support member 73i shown in FIG. Therefore, the cost of the mold for manufacturing the sheet 73i ′ is lower than the cost of the mold for manufacturing the two sheets 73g and the sheet support member 73i. Further, the seat 73g and the seat support member 73i have a complicated structure on the mounting surface side for mounting. However, since the seat 73i ′ is a single member, the seat 73g and the seat support member 73i have a structure as compared with the case of the two members 73g and 73i. It is not necessary to use a costly mold having a complicated shape even with a single member. 36 includes a ring-shaped metal sheet 73x, a large-diameter O-ring 73y, and a small-diameter O-ring 73z. The thermo-element through-hole 73n ′ is formed by cutting. It was necessary to form, and the production cost was higher than that of the water supply side sheet member 500.
図２８、図２９は、前記切欠き４８に嵌込まれている異形オーリング４９’が切替弁ケース４５の内面との接触により切欠き４８から外れないように異形オーリング４９’を構成してあるこの発明の第３の実施形態を示す。なお、図２８、図２９において、図１〜図２７に示した符号と同一のものは、同一または相当物である。 28 and 29, the modified O-ring 49 ′ is configured so that the modified O-ring 49 ′ fitted in the notch 48 does not come off from the notch 48 due to contact with the inner surface of the switching valve case 45. A third embodiment of the present invention will be described. 28 and 29, the same reference numerals as those shown in FIGS. 1 to 27 are the same or equivalent.
切替ガイド４７の胴４７ａに設けた切欠き４８は、図５（Ｂ）、図３に示すように、四隅の角は丸みをおびているとともに、真ん中がくびれた平面視略矩形の形状をなし、胴４７ａの円周方向に長く、胴の長手方向に短いように形成されている。また、前記切欠き４８は、図５（Ａ）に示すように、前記胴４７ａを円周角で１９０°程度に円周方向に切り裂いて形成されている。 As shown in FIG. 5B and FIG. 3, the notch 48 provided in the body 47a of the switching guide 47 has a rounded corner and a substantially rectangular shape in plan view with a narrowed center. It is formed so as to be long in the circumferential direction of the barrel 47a and short in the longitudinal direction of the barrel. Further, as shown in FIG. 5A, the notch 48 is formed by cutting the body 47a in the circumferential direction at a circumferential angle of about 190 °.
図２８、図２９において、異形オーリング４９’は、メガネの枠のように左右に輪５０，５０が形成され、切替ガイド４７の胴４７ａに設けた切欠き４８に嵌込み可能な外形形状を有する。そして、輪５０および５０の開口５０ａおよび５０ａにはそれぞれガイドリング５１および５１を嵌込んだ状態で、異形オーリング４９’が切欠き４８に嵌込まれる。 28 and 29, the odd-shaped O-ring 49 ′ has wheels 50 and 50 formed on the left and right like a frame of glasses, and has an outer shape that can be fitted into a notch 48 provided in the body 47 a of the switching guide 47. Have. The odd-shaped O-ring 49 ′ is fitted in the notch 48 with the guide rings 51 and 51 fitted in the openings 50 a and 50 a of the rings 50 and 50, respectively.
異形オーリング４９’は、ゴーグルのような形状をしており、前記一対の輪５０，５０と、一対の耳部４９ａと、これら耳部４９ａ，４９ａを接続する一つのワッパ４９ｂとから構成される。 The odd-shaped O-ring 49 ′ has a goggle-like shape, and is composed of the pair of rings 50, 50, a pair of ear portions 49a, and a single wrapper 49b that connects the ear portions 49a, 49a. The
前記各耳部４９ａは、係止孔ｒを有し、各輪５０の対象位置で、長手方向外側に設けられている。前記ワッパ４９ｂは、両端にそれぞれ前記係止孔ｒに係合する係合突起ｒ’，ｒ’を有する。これら係合突起ｒ’，ｒ’は、ワッパ４９ｂの裏面ａに形成されている。ワッパ４９ｂの長さは、一方の係止孔ｒに一方の係合突起ｒ’を係合し、他方の係止孔ｒに他方の係合突起ｒ’を係合したときに切替ガイド４７の胴４７ａを締めつける程度の長さに設定されている。更に、前記耳部４９ａは、輪５０と一体に成形されており、段差ｆを介して輪５０の表面ｂよりも下位にワッパ４９ｂの係合突起ｒ’に対向する表面ｃを有する。 Each ear 49a has a locking hole r, and is provided on the outer side in the longitudinal direction at the target position of each wheel 50. The wapper 49b has engaging projections r 'and r' that engage with the locking holes r at both ends. These engagement protrusions r 'and r' are formed on the back surface a of the wapper 49b. The length of the wapper 49b is such that when one engaging projection r ′ is engaged with one locking hole r and the other engaging projection r ′ is engaged with the other locking hole r, the switching guide 47 has a length. The length is set so as to tighten the barrel 47a. Further, the ear portion 49a is formed integrally with the wheel 50, and has a surface c that faces the engaging protrusion r 'of the wapper 49b below the surface b of the wheel 50 through a step f.
而して、輪５０および５０の開口５０ａおよび５０ａにはそれぞれ図１２に示すようなガイドリング５１および５１を嵌込んだ状態で、異形オーリング４９の一対の輪５０および５０が切欠き４８に嵌込まれる。このとき、各耳部４９ａを介してワッパ４９ｂを一対の輪５０，５０に接続した状態で、ワッパ４９ｂと一対の輪５０，５０によって形成される輪内に切替ガイド４７を通し、ワッパ４９ｂの裏面ａが切替ガイド４７の胴４７ａを締めつける形で各輪５０と各耳部４９ａが切欠き４８に嵌込まれる。このため、この状態で切替ガイド４７を切替弁ケース４５内に差し込んでも、切替弁ケース４５の内面と異形オーリング４９’の接触により各輪５０と各耳部４９ａが切欠き４８から外れるのを確実に防止できる。 Thus, the pair of rings 50 and 50 of the odd-shaped O-ring 49 are formed in the notches 48 with the guide rings 51 and 51 as shown in FIG. 12 fitted in the openings 50a and 50a of the rings 50 and 50, respectively. It is inserted. At this time, in a state where the wapper 49b is connected to the pair of wheels 50, 50 via the respective ear portions 49a, the switching guide 47 is passed through the wheel formed by the wapper 49b and the pair of wheels 50, 50, and Each wheel 50 and each ear portion 49 a are fitted into the notch 48 such that the back surface a fastens the body 47 a of the switching guide 47. For this reason, even if the switching guide 47 is inserted into the switching valve case 45 in this state, the wheels 50 and the ears 49a are not removed from the notches 48 due to the contact between the inner surface of the switching valve case 45 and the deformed O-ring 49 ′. It can be surely prevented.
図３０〜図３２は、前記ワッパ４９ｂの代わりに各輪５０に補助枠４９ｇを設け、この補助枠４９ｇを引っ張って延伸させることにより、切替ガイド４７の胴４７ａに設けた円弧状の溝４７ｄに嵌込むことで、前記切欠き４８に嵌込まれている各輪５０が切替弁ケース４５の内面との接触により切欠き４８から外れないように異形オーリング４９’’を構成してあるこの発明の第４の実施形態を示す。なお、図３０〜図３２において、図１〜図２９に示した符号と同一のものは、同一または相当物である。 30 to 32, an auxiliary frame 49g is provided on each wheel 50 in place of the wapper 49b, and the auxiliary frame 49g is pulled and extended to form an arc-shaped groove 47d provided on the body 47a of the switching guide 47. In the present invention, a modified O-ring 49 '' is formed so that the wheels 50 fitted in the notches 48 are not detached from the notches 48 by contact with the inner surface of the switching valve case 45. The 4th Embodiment of is shown. 30 to 32, the same reference numerals as those shown in FIGS. 1 to 29 are the same or equivalent.
図３０〜図３２において、異形オーリング４９’’は、メガネの枠のように左右に輪５０，５０が形成され、切替ガイド４７の胴４７ａに設けた切欠き４８に嵌込み可能な外形形状を有する。そして、輪５０および５０の開口５０ａおよび５０ａにはそれぞれガイドリング５１および５１を嵌込んだ状態で、異形オーリング４９’’が切欠き４８に嵌込まれる。 30 to 32, an odd-shaped O-ring 49 ″ has outer shapes 50 and 50 formed on the left and right like a frame of glasses, and can be fitted into a notch 48 provided in a body 47a of the switching guide 47. Have Then, in a state where the guide rings 51 and 51 are fitted in the openings 50 a and 50 a of the rings 50 and 50, respectively, the odd-shaped o-ring 49 ″ is fitted in the notch 48.
異形オーリング４９’’はゴーグルのような形状をしており、弾性を有する一対の輪５０，５０と、各輪５０の対象位置で、短手方向（Ｘ方向）外側に設けた延伸自在の弾性を有する補助枠４９ｇとよりなる。輪５０および５０と一方の補助枠４９ｇとの間、輪５０および５０と他方の補助枠４９ｇとの間には、異形オーリング外れ防止用の開口４９ｈが形成されている。補助枠４９ｇの断面積Ｓ1 は輪５０の断面積Ｓ2 よりも小さく設定されており、これにより、輪５０は変形し難いが、補助枠４９ｇは、引っ張ると延びて切替ガイド４７の胴４７ａに設けた円弧状の溝４７ｄに補助枠４９ｇが嵌込み可能な程度に開口４９ｈが拡がるよう形成されている。前記輪５０の断面の形状は円であるのに対し、補助枠４９ｇの断面の形状は、前記円の半径よりも小さな半径を持ち、円弧面ｔ’を輪５０の上面ｔ側に持つ半円である。ｔ’’は、この半円の下面である。 The deformed O-ring 49 ″ has a goggle-like shape, and is a stretchable ring provided on the outer side in the short direction (X direction) at a target position of each of the wheels 50 and 50 having elasticity and each wheel 50. The auxiliary frame 49g has elasticity. An opening 49h for preventing irregular O-ring removal is formed between the rings 50 and 50 and the one auxiliary frame 49g, and between the rings 50 and 50 and the other auxiliary frame 49g. The cross-sectional area S 1 of the auxiliary frame 49g is set to be smaller than the cross-sectional area S 2 of the wheel 50, so that the wheel 50 is difficult to deform, but the auxiliary frame 49g extends when pulled and extends to the body 47a of the switching guide 47. The opening 49h is formed so as to expand to the extent that the auxiliary frame 49g can be fitted into the arc-shaped groove 47d provided in the upper portion. The cross-sectional shape of the ring 50 is a circle, whereas the cross-sectional shape of the auxiliary frame 49g is a semicircle having a radius smaller than the radius of the circle and having an arc surface t ′ on the upper surface t side of the ring 50. It is. t ″ is the lower surface of this semicircle.
而して、補助枠４９ｇを引っ張って開口４９ｈを拡げながら、胴４７ａに設けた円弧状の溝４７ｄに補助枠４９ｇを嵌込むとともに、輪５０および５０の開口５０ａおよび５０ａにそれぞれガイドリング５１および５１を嵌込んだ状態で、一対の輪５０および５０が切欠き４８に嵌込まれる。補助枠４９ｇを溝４７ｄに嵌込んだ状態では、開口４９ｈが小さくなるよう異形オーリング４９’’は弾性変形している。よって、切替ガイド４７を切替弁ケース４５内に差し込んでも、切替弁ケース４５の内面と異形オーリング４９’’の接触により異形オーリング４９’’が切欠き４８から外れるのを確実に防止できる。 Thus, while pulling the auxiliary frame 49g to widen the opening 49h, the auxiliary frame 49g is fitted into the arc-shaped groove 47d provided in the body 47a, and the guide ring 51 and the openings 50a and 50a of the rings 50 and 50, respectively. In a state where 51 is fitted, the pair of wheels 50 and 50 are fitted into the notch 48. In a state where the auxiliary frame 49g is fitted in the groove 47d, the odd-shaped O-ring 49 '' is elastically deformed so that the opening 49h becomes small. Therefore, even if the switching guide 47 is inserted into the switching valve case 45, it is possible to reliably prevent the deformed O-ring 49 ″ from coming out of the notch 48 due to the contact between the inner surface of the switching valve case 45 and the deformed O-ring 49 ″.
図３３〜図３５は、前記切欠き４８に嵌込まれている異形オーリング４９’’’が切替弁ケース４５の内面との接触により切欠き４８から外れないように異形オーリング４９’’’を構成してあるこの発明の第５の実施形態を示す。なお、図３３〜図３５において、図１〜図３２に示した符号と同一のものは、同一または相当物である。 33 to 35 show a modified O-ring 49 ′ ″ so that the modified O-ring 49 ′ ″ fitted in the notch 48 does not come off from the notch 48 due to contact with the inner surface of the switching valve case 45. The 5th Embodiment of this invention which is comprised is shown. 33 to 35, the same reference numerals as those shown in FIGS. 1 to 32 are the same or equivalent.
切替ガイド４７の胴４７ａに設けた切欠き４８は、図５（Ｂ）、図３に示すように、四隅の角は丸みをおびているとともに、真ん中がくびれた平面視略矩形の形状をなし、胴４７ａの円周方向に長く、胴の長手方向に短いように形成されている。また、前記切欠き４８は、図５（Ａ）に示すように、前記胴４７ａを円周角で１９０°程度に円周方向に切り裂いて形成されている。 As shown in FIG. 5B and FIG. 3, the notch 48 provided in the body 47a of the switching guide 47 has a rounded corner and a substantially rectangular shape in plan view with a narrowed center. It is formed so as to be long in the circumferential direction of the barrel 47a and short in the longitudinal direction of the barrel. Further, as shown in FIG. 5A, the notch 48 is formed by cutting the body 47a in the circumferential direction at a circumferential angle of about 190 °.
図３３〜図３５において、異形オーリング４９’’’は、メガネの枠のように左右に輪５０，５０が形成され、切替ガイド４７の胴４７ａに設けた切欠き４８に嵌込み可能な外形形状を有する。そして、輪５０および５０の開口５０ａおよび５０ａにはそれぞれガイドリング５１および５１を嵌込んだ状態で、異形オーリング４９’が切欠き４８に嵌込まれる。 33 to 35, the odd-shaped O-ring 49 '' 'has outer shapes 50 and 50 formed on the left and right like a frame of glasses, and can be fitted into a notch 48 provided in the body 47a of the switching guide 47. Has a shape. The odd-shaped O-ring 49 ′ is fitted in the notch 48 with the guide rings 51 and 51 fitted in the openings 50 a and 50 a of the rings 50 and 50, respectively.
異形オーリング４９’’’は、前記一対の輪５０，５０と、各輪５０の対象位置で、短手方向（Ｘ方向）外側に設けた補助枠４９ｇとよりなる。輪５０および５０と一方の補助枠４９ｇとの間、輪５０および５０と他方の補助枠４９ｇとの間には、異形オーリング外れ防止用の開口４９ｈが形成されている。補助枠４９ｇの断面積Ｓ1 は輪５０の断面積Ｓ2 よりも小さく設定されており、また、輪５０の断面の形状は円であるのに対し、補助枠４９ｇの断面の形状は、前記円の半径よりも小さな半径を持ち、円弧面ｔ’を輪５０の上面ｔ側に持つ半円である。ｔ’’は、この半円の下面である。 The odd-shaped o-ring 49 ′ ″ is composed of the pair of rings 50, 50 and an auxiliary frame 49g provided outside the short direction (X direction) at the target position of each ring 50. An opening 49h for preventing irregular O-ring removal is formed between the rings 50 and 50 and the one auxiliary frame 49g, and between the rings 50 and 50 and the other auxiliary frame 49g. The cross-sectional area S 1 of the auxiliary frame 49g is set smaller than the cross-sectional area S 2 of the wheel 50, and the cross-sectional shape of the wheel 50 is a circle, whereas the cross-sectional shape of the auxiliary frame 49g is This is a semicircle having a radius smaller than the radius of the circle and having an arc surface t ′ on the upper surface t side of the ring 50. t ″ is the lower surface of this semicircle.
一方、切欠き４８の長手方向（Ｙ方向）における両端面の近傍には、それぞれ前記開口４９ｈに嵌合する形状の突起４９ｉが形成されている。この突起４９ｉの形状は、平面視で開口４９ｈと同じ形状をなす。 On the other hand, in the vicinity of both end faces in the longitudinal direction (Y direction) of the notch 48, protrusions 49i each having a shape that fits into the opening 49h are formed. The shape of the protrusion 49i is the same shape as the opening 49h in plan view.
而して、輪５０および５０の開口５０ａおよび５０ａにはそれぞれ図１２に示すようなガイドリング５１および５１を嵌込んだ状態で、一対の輪５０，５０が切欠き４８に嵌込まれる。このとき、前記開口４９ｈを突起４９ｉに嵌込むだけの作業で切替ガイド４７を切替弁ケース４５内に差し込んでも、切替弁ケース４５の内面と異形オーリング４９’’’の接触により異形オーリング４９’’’が切欠き４８から外れるのを確実に防止できる。 Thus, the pair of rings 50 and 50 are fitted into the notches 48 with the guide rings 51 and 51 as shown in FIG. 12 fitted in the openings 50a and 50a of the rings 50 and 50, respectively. At this time, even if the switching guide 47 is inserted into the switching valve case 45 only by fitting the opening 49h into the protrusion 49i, the deformed O-ring 49 is brought into contact with the inner surface of the switching valve case 45 and the deformed O-ring 49 ′ ″. It is possible to reliably prevent '' 'from coming out of the notch 48.
３１…水栓本体、３２…切替ハンドル、３３…温調ハンドル、３４…切替ユニット、３５…温調ユニット、４５…第１の固定部材、４７…第２の固定部材、４９…異形オーリング、５１…ガイドリング、５３…回動部材、６０…サーモ本体、６１…サーモワックス、６２…ピストン、６３…サーモエレメント、６４…湯導入孔、６５…水導入孔、７０…サーモバルブ、７１…サーモバルブ本体、７２…跨ぎ部材、７３，７８…連結部、７４…胴部、７６…連結孔、７７…水孔、８０…湯孔、８１…胴部、２００…給湯側通路のすき間、２０１…給水側通路のすき間、Ｎ…サーモ本体の胴、Ｘ1 ，Ｘ2 …中心軸、Ｘ…水栓本体の軸芯、Ｊ…開放端。
31 ... faucet body, 32 ... switching handle, 33 ... temperature control handle, 34 ... switching unit, 35 ... temperature control unit, 45 ... first fixing member, 47 ... second fixing member, 49 ... deformed O-ring, DESCRIPTION OF SYMBOLS 51 ... Guide ring, 53 ... Turning member, 60 ... Thermo body, 61 ... Thermo wax, 62 ... Piston, 63 ... Thermo element, 64 ... Hot water introduction hole, 65 ... Water introduction hole, 70 ... Thermo valve, 71 ... Thermo Valve body, 72 ... straddling member, 73, 78 ... connecting part, 74 ... trunk part, 76 ... connecting hole, 77 ... water hole, 80 ... hot water hole, 81 ... trunk part, 200 ... gap in hot water supply side passage, 201 ... Clearance in the water supply side passage, N: body of the thermo body, X 1 , X 2 : central axis, X: shaft core of the faucet body, J: open end.
Claims (5)
前記水栓本体は、吐水管用継手が装着された吐水管接続口と、シャワーホース用継手が装着されたシャワーホース接続口とを周方向に間隔をあけて有し、
前記切替ユニットは、
前記水栓本体内に嵌込まれ、前記吐水管接続口に連通する連通孔及び前記シャワーホース接続口に連通する連通孔を有する筒状の第１の固定部材と、
この第１の固定部材内に嵌込まれ、各前記連通孔に跨がって連通する切欠きを有する筒状の第２の固定部材と、
前記切替ハンドルの切替操作により前記水栓本体の軸芯のまわりで前記第２の固定部材内を回動し、それによって、水、湯、または混合水の流路を前記切欠きおよび各前記連通孔を介して前記吐水管接続口またはシャワーホース接続口に連通させる連通孔を胴に有する筒状の回動部材とを有する弁機構を備え、
前記第２の固定部材の胴に設けた切欠きに嵌込み可能な外形形状を有し、前記吐水管接続口と前記シャワーホース接続口との間に対応する位置に仕切り部分が設けられた略８の字形状の部分を有する異形オーリングと、前記略８の字形状の部分の二つの輪にそれぞれ嵌め込まれるガイドリングとを設けた湯水混合水栓。 Cylindrical faucet body with a switching handle with water / hot water / mixed water discharge / stop function and flow rate adjustment function at one end and a temperature control handle with mixed water temperature control function at the other end inside, a switching unit connectable to the switching handle, and the temperature control handle which can be connected the temperature control unit is hand being dumped, to arbitrarily set the temperature of the mixed water by the previous SL temperature adjustment handle that a hot water mixing faucet that can be,
The faucet body has a water discharge pipe connection port to which a water discharge pipe joint is attached and a shower hose connection port to which a shower hose joint is attached, spaced in the circumferential direction.
The switching unit is
A tubular first fixing member that is fitted in the faucet body and has a communication hole that communicates with the water discharge pipe connection port and a communication hole that communicates with the shower hose connection port;
A cylindrical second fixing member fitted into the first fixing member and having a notch communicating across each of the communication holes;
By the switching operation of the switching handle, the inside of the second fixing member is rotated around the axis of the faucet body, whereby the flow path of water, hot water, or mixed water passes through the notch and each of the communication channels. A valve mechanism having a cylindrical rotation member having a communication hole in the body communicating with the water discharge pipe connection port or the shower hose connection port through a hole;
It has an outer shape that can be fitted into a notch provided in the body of the second fixing member, and a partition portion is provided at a position corresponding to between the water discharge pipe connection port and the shower hose connection port. A hot and cold water mixing faucet provided with an odd- shaped O-ring having an 8-shaped part and a guide ring fitted into two rings of the approximately 8-shaped part .
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| JP2009140876A JP4825284B2 (en) | 2002-10-15 | 2009-06-12 | Hot and cold water faucet |
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| JP2009140876A JP4825284B2 (en) | 2002-10-15 | 2009-06-12 | Hot and cold water faucet |
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| JP2003184000A Division JP4340101B2 (en) | 2002-10-15 | 2003-06-27 | Thermo-type hot and cold water mixing faucet |
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| JP4825284B2 JP4825284B2 (en) | 2011-11-30 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013213313A (en) * | 2012-03-30 | 2013-10-17 | Lixil Corp | Faucet |
| JP2016038020A (en) * | 2014-08-07 | 2016-03-22 | 株式会社ケーブイケー | Valve unit, faucet and assembly method of valve unit |
| JP2018096403A (en) * | 2016-12-09 | 2018-06-21 | 株式会社ケーブイケー | Changeover water stop valve |
| JP2020026624A (en) * | 2018-08-09 | 2020-02-20 | Toto株式会社 | Mixing faucet |
| WO2023277119A1 (en) * | 2021-06-30 | 2023-01-05 | パナソニックホールディングス株式会社 | Water faucet |
| WO2023277117A1 (en) * | 2021-06-30 | 2023-01-05 | パナソニックホールディングス株式会社 | Water faucet |
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| JPS5448334A (en) * | 1977-07-14 | 1979-04-16 | Itt | Single lever type mixing valve |
| JPS60129564A (en) * | 1983-12-17 | 1985-07-10 | Matsushita Electric Works Ltd | Solar heat water heater |
| JPH09310767A (en) * | 1996-05-23 | 1997-12-02 | Sanei Suisen Seisakusho:Kk | Water and hot water mixing cock |
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| JPS5448334A (en) * | 1977-07-14 | 1979-04-16 | Itt | Single lever type mixing valve |
| JPS60129564A (en) * | 1983-12-17 | 1985-07-10 | Matsushita Electric Works Ltd | Solar heat water heater |
| JPH09310767A (en) * | 1996-05-23 | 1997-12-02 | Sanei Suisen Seisakusho:Kk | Water and hot water mixing cock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013213313A (en) * | 2012-03-30 | 2013-10-17 | Lixil Corp | Faucet |
| CN103363174A (en) * | 2012-03-30 | 2013-10-23 | 骊住株式会社 | Water faucet |
| JP2016038020A (en) * | 2014-08-07 | 2016-03-22 | 株式会社ケーブイケー | Valve unit, faucet and assembly method of valve unit |
| JP2018096403A (en) * | 2016-12-09 | 2018-06-21 | 株式会社ケーブイケー | Changeover water stop valve |
| JP2020026624A (en) * | 2018-08-09 | 2020-02-20 | Toto株式会社 | Mixing faucet |
| JP7286927B2 (en) | 2018-08-09 | 2023-06-06 | Toto株式会社 | Hot and cold water mixing faucet |
| WO2023277119A1 (en) * | 2021-06-30 | 2023-01-05 | パナソニックホールディングス株式会社 | Water faucet |
| WO2023277117A1 (en) * | 2021-06-30 | 2023-01-05 | パナソニックホールディングス株式会社 | Water faucet |
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| JP4825284B2 (en) | 2011-11-30 |
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