JPH09152050A - Combination faucet - Google Patents
Combination faucetInfo
- Publication number
- JPH09152050A JPH09152050A JP31528695A JP31528695A JPH09152050A JP H09152050 A JPH09152050 A JP H09152050A JP 31528695 A JP31528695 A JP 31528695A JP 31528695 A JP31528695 A JP 31528695A JP H09152050 A JPH09152050 A JP H09152050A
- Authority
- JP
- Japan
- Prior art keywords
- water
- temperature
- hot water
- hot
- control valve
- 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.)
- Granted
Links
Landscapes
- Temperature-Responsive Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、湯と水とを混合し
て吐出する湯水混合栓に係り、特に内部流路を通過する
混合水の温度に応じてばね定数が変化する形状記憶合金
製の感温スプリングによって自動温度調節のための制御
弁体を付勢保持する湯水混合栓に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot and cold water mixing tap for mixing and discharging hot water and water, and in particular, it is made of a shape memory alloy whose spring constant changes according to the temperature of the mixed water passing through an internal flow path. The hot water mixing valve for urging and holding the control valve body for automatic temperature control by the temperature sensitive spring.
【０００２】[0002]
【従来の技術】湯と水とを混合して吐出する湯水混合栓
等では、予め設定した混合水の温度が給水及び給湯圧の
変動等によって変化してしまうので、これを自動的に調
節して元の設定温度に復帰させる自動温度調節機能を備
えたものがサーモスタットミキシングバルブとして従来
から利用されている。2. Description of the Related Art In a hot and cold water mixing tap that mixes hot water and water and discharges it, the preset temperature of the mixed water changes due to fluctuations in water supply and hot water supply pressure. A thermostat mixing valve that has an automatic temperature control function to restore the original set temperature has been conventionally used.
【０００３】このような湯水混合栓では、混合水の温度
を検知するための手段として、たとえば実公昭６１−４
４０６２号公報に記載されているように、形状記憶合金
を素材とした感温スプリングが利用されるようになっ
た。この感温スプリングは、特定の温度下で一定の形状
に設定すると、この温度域以外の範囲で形状を変化させ
ても先の特定の温度になれば元の形状に復元するという
形状記憶合金の特性を利用したものである。In such a hot and cold water mixing tap, as means for detecting the temperature of the mixed water, for example, Japanese Utility Model Publication No. 61-4.
As described in Japanese Patent No. 4062, a temperature-sensitive spring made of a shape memory alloy has come to be used. This temperature-sensitive spring is a shape memory alloy that when set to a certain shape at a specific temperature, it will return to its original shape when the shape reaches a specific temperature, even if the shape is changed in a range other than this temperature range. It uses the characteristics.
【０００４】感温スプリングは、水側及び湯側の弁座に
一軸上で接離する制御弁体を湯弁座側に付勢するように
組み込まれる。そして、制御弁体の軸線方向のバランス
設定のため、感温スプリングの反対側の位置にはバイア
ススプリングを配置して制御弁体を水弁座側に付勢した
構造が一般的に採用されている。そして、制御弁体は温
度設定用のハンドルによって水弁座側及び湯弁座側のそ
れぞれの開度を調整することで、混合水の温度が設定さ
れる。そして、水及び湯の供給圧や温度変動によって混
合水の温度が変化すると、感温スプリングが伸縮し温度
補正して混合水の温度を設定温度に維持しようとする。The temperature-sensitive spring is incorporated so as to urge the control valve element, which comes into contact with and separates from the water-side and hot-water side valve seats on one axis, toward the hot water valve seat side. In order to set the balance in the axial direction of the control valve body, a structure in which a bias spring is arranged at a position opposite to the temperature sensitive spring and the control valve body is biased toward the water valve seat side is generally adopted. There is. Then, the temperature of the mixed water is set by adjusting the opening of each of the water valve seat side and the hot water valve seat side of the control valve body with the temperature setting handle. Then, when the temperature of the mixed water changes due to the supply pressure of water and hot water or the temperature change, the temperature sensitive spring expands and contracts to correct the temperature and maintain the temperature of the mixed water at the set temperature.
【０００５】[0005]
【発明が解決しようとする課題】ところで、感温スプリ
ングを感温部材として用いる場合、図１４に示すよう
に、感温スプリングＳの末端Ｓａには寸法ａの段差があ
るため、図１５に線分Ｌで示すように、末端Ｓａを研削
して段差が生じないようにする必要がある。By the way, when the temperature sensitive spring is used as the temperature sensitive member, there is a step of dimension a at the end Sa of the temperature sensitive spring S as shown in FIG. As shown by the portion L, it is necessary to grind the end Sa so that no step is formed.
【０００６】ところが、このように研削し段差が生じな
いようにして組込んでも、感温スプリングＳが熱により
変形した場合には、スプリングの戻り作用が生じるた
め、図１６に示すように、末端Ｓａに寸法ｂの段差が生
じてしまい、端面を平らな状態のままで平行移動させる
ことができない。そして感温スプリングＳは末端Ｓａの
部分が最もよく熱変形し、この部分で制御弁体が付勢保
持されることになるため、ハウジング内で摺動する制御
弁体の軸線が、ハウジングの軸線に対して傾いてしま
い、この傾きを避けることができないという問題があ
る。However, even when the temperature-sensitive spring S is deformed by heat even if it is assembled by grinding in such a manner so as not to generate a step, the spring returning action occurs, and as shown in FIG. Since a step of dimension b is generated in Sa, the end face cannot be moved in parallel while being flat. Further, since the end portion Sa of the temperature-sensitive spring S is most thermally deformed and the control valve body is biased and held at this portion, the axis of the control valve body sliding in the housing is the axis of the housing. However, there is a problem that it is unavoidable to avoid the inclination.
【０００７】本発明はこのような点を考慮してなされた
もので、制御弁体の傾きを有効に利用して湯水を充分に
混合させ、混合水の温度斑をなくして感温スプリングの
応答性を向上させることができる湯水混合栓を提供する
ことを目的とする。The present invention has been made in consideration of the above points, and effectively utilizes the inclination of the control valve element to sufficiently mix the hot and cold water to eliminate the temperature unevenness of the mixed water and to make the response of the temperature sensitive spring. It is an object of the present invention to provide a hot and cold water mixing stopper capable of improving the property.
【０００８】[0008]
【課題を解決するための手段】前記目的を達成するため
本発明は、軸線方向に間隔を置いて湯流入口と水流入口
とが穿設され、これら両流入口の下流位置に湯水混合室
が形成されたハウジングと；前記ハウジング内に軸線方
向に摺動可能に配設され、前記両流入口の間を摺動して
湯、水の流入量を制御する制御弁体と；前記ハウジング
内の湯水混合室近傍位置に配設され、前記制御弁体の軸
線方向移動を制御する形状記憶合金製の感温スプリング
と；を具備する湯水混合栓において、前記感温スプリン
グの末端を、前記両流入口の流入軸に対し、周方向に４
５ないし１３５度偏位した位置に配置したことを特徴と
する。In order to achieve the above-mentioned object, the present invention has a hot water inlet and a hot water inlet provided at intervals in the axial direction, and a hot and cold water mixing chamber is provided at a position downstream of these hot water inlets. A formed housing; a control valve body that is slidably disposed in the housing in the axial direction and that slides between the two inlets to control an inflow amount of hot water and water; In a hot and cold water mixing valve provided with a temperature sensitive spring made of a shape memory alloy for controlling the axial movement of the control valve body, which is disposed in the vicinity of the hot and cold water mixing chamber. 4 in the circumferential direction with respect to the inlet inflow axis
It is characterized in that it is arranged at a position offset by 5 to 135 degrees.
【０００９】ところで、感温スプリングが熱変位した場
合、制御弁体が感温スプリングの末端で押され、制御弁
体は、感温スプリングの末端と制御弁体の軸線とを含む
平面内で傾くことになる。When the temperature-sensitive spring is thermally displaced, the control valve body is pushed by the end of the temperature-sensitive spring, and the control valve body tilts in the plane including the end of the temperature-sensitive spring and the axis of the control valve body. It will be.
【００１０】ここで、湯流入口が制御弁体により絞られ
て、湯圧が水圧に比較して高くなっている場合を考える
と、水は水流入口からそのまま流入することになるが、
湯は、感温スプリングの末端に対し周方向に１８０度位
置が偏位した側、すなわち制御弁体の傾きによって開口
が最も広くなった側に廻り込んで流入することになる。
このため、湯の流入軸と水の流入軸とが、周方向に４５
ないし１３５度偏位することになり、湯水の混合を充分
に行なって混合水の温度斑を大幅に抑えることが可能と
なる。Here, considering the case where the hot water inlet is throttled by the control valve body and the hot water pressure is higher than the water pressure, the water will flow in from the hot water inlet as it is.
The hot water flows into the side of which the position is displaced 180 degrees in the circumferential direction with respect to the end of the temperature-sensitive spring, that is, the side where the opening is widest due to the inclination of the control valve body.
Therefore, the inflow axis of the hot water and the inflow axis of the water are 45 in the circumferential direction.
That is, it is offset by 135 degrees, and it becomes possible to sufficiently mix the hot water and the temperature unevenness of the mixed water.
【００１１】本発明はまた、感温スプリングの末端を、
両流入口の流入軸に対し、周方向にほぼ９０度偏位した
位置に配置するようにしたことを特徴とする。そしてこ
れにより、湯の流入軸と水の流入軸とが、周方向にほぼ
９０度偏位することになり、湯と水とをより効率よく混
合することが可能となる。The present invention also provides for the distal end of the temperature sensitive spring to be
It is characterized in that it is arranged at a position displaced by approximately 90 degrees in the circumferential direction with respect to the inflow axes of both inflow ports. As a result, the inflow axis of the hot water and the inflow axis of the water are deviated by approximately 90 degrees in the circumferential direction, and it becomes possible to mix the hot water and the water more efficiently.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の態様を図面
を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１は、本発明の実施の一態様に係る湯水
混合栓を示すもので、図中、符号１は湯水混合栓の本体
であり、この本体１の背部には、建屋側の給水および給
湯配管に接続するための水用脚管１ａおよび湯用脚管１
ｂが設けられている。本体１の下端中央部には、吐水管
１ｃが接続され、その背部側には、シャワーヘッド（図
示せず）に向かうホース１ｄが設けられている。そし
て、本体１の図中右端には、吐水管１ｃ側あるいはホー
ス１ｄ側に流路を選択的に切換えるための切換ハンドル
２が設けられ、また本体１の図中左端には、混合水温度
を調節するための温度調節ハンドル３が設けられてい
る。FIG. 1 shows a hot and cold water mixing valve according to an embodiment of the present invention. In the figure, reference numeral 1 is a main body of the hot and cold water mixing valve. And a water leg pipe 1a and a hot water leg pipe 1 for connecting to a hot water supply pipe
b is provided. A water discharge pipe 1c is connected to the center of the lower end of the main body 1, and a hose 1d directed to a shower head (not shown) is provided on the back side thereof. At the right end of the main body 1 in the drawing, a switching handle 2 for selectively switching the flow path to the water discharge pipe 1c side or the hose 1d side is provided, and at the left end of the main body 1 in the drawing, the mixed water temperature is set. A temperature control handle 3 for adjusting the temperature is provided.
【００１４】本体１の内部には、図２に示すように、水
用脚管１ａおよび湯用脚管１ｂに各々連通する給水室４
ａおよび給湯室４ｂが、本体１の右端部および左端部に
それぞれ形成されており、前記給湯室４ｂの右隣には、
給水室４ａに直に連通する水室４ｃが設けられている。
この水室４ｃと給水室４ａとの間には、混合室４ｄが設
けられているとともに、吐水管１ｃに連通する吐水管側
連絡路４ｅおよびホース１ｄに接続されるホース側連絡
路４ｆがそれぞれ形成されている。Inside the main body 1, as shown in FIG. 2, a water supply chamber 4 communicating with the water leg pipe 1a and the hot water leg pipe 1b, respectively.
a and a hot water supply chamber 4b are formed at the right end and the left end of the main body 1, respectively, and on the right of the hot water supply chamber 4b,
A water chamber 4c that directly communicates with the water supply chamber 4a is provided.
A mixing chamber 4d is provided between the water chamber 4c and the water supply chamber 4a, and a water discharge pipe side communication path 4e communicating with the water discharge pipe 1c and a hose side communication path 4f connected to the hose 1d are respectively provided. Has been formed.
【００１５】また、本体１の内部には、右端から混合室
４ｄにかけて、切換弁用の円筒状をなすケース５が組込
まれており、このケース５内には、スリーブ状の切換弁
体５ａが回転可能に挿入配置され、この切換弁体５ａ
は、スピンドル５ｂを介し切換ハンドル２に連結されて
いる。A cylindrical case 5 for a switching valve is incorporated in the main body 1 from the right end to the mixing chamber 4d, and a sleeve-shaped switching valve body 5a is incorporated in the case 5. This switching valve body 5a is rotatably inserted and arranged.
Is connected to the switching handle 2 via a spindle 5b.
【００１６】ケース５の周壁には、吐水管側連絡路４ｅ
およびホース側連絡路４ｆに対応する位置であってそれ
ぞれの芯の軸線が造る中心角を９０度程度として流出ポ
ート５ｃ，５ｄが穿設されており、一方切換弁体５ａに
は、これらの流出ポート５ｃ，５ｄに整合可能な連絡孔
５ｅ，５ｆがそれぞれ設けられている。そして、切換ハ
ンドル２の回転操作によって、各流出ポート５ｃ，５ｄ
と連絡孔５ｅ，５ｆとを整合させることにより、混合室
４ｄからの流路を吐水管１ｃ側またはホース１ｄ側に切
換えることができるようになっている。On the peripheral wall of the case 5, a water discharge pipe side connecting passage 4e is formed.
And outflow ports 5c and 5d are formed at positions corresponding to the hose side communication path 4f and the central angles formed by the axes of the respective cores are about 90 degrees, while the outflow ports 5c and 5d are provided in the switching valve body 5a. Communication holes 5e and 5f that can be aligned with the ports 5c and 5d are provided, respectively. Then, when the switching handle 2 is rotated, the outflow ports 5c and 5d are discharged.
The flow path from the mixing chamber 4d can be switched to the water discharge pipe 1c side or the hose 1d side by aligning the connection holes 5e and 5f with each other.
【００１７】本体１の内部にはまた、図２および図３に
示すように、その左端部に、本体１の正面側および上面
側の表面温度の上昇を抑えるために、円筒状をなす断熱
ブッシュ６が嵌合固定されており、その内部には、温度
調節ハンドル３に連設した温度調節ユニット７が、本体
１の左端側から着脱自在に挿入配置されている。Inside the main body 1, as shown in FIGS. 2 and 3, at the left end thereof, a cylindrical heat insulating bush is formed in order to suppress an increase in the surface temperature on the front side and the upper side of the main body 1. 6 is fitted and fixed, and a temperature adjusting unit 7 connected to the temperature adjusting handle 3 is detachably inserted from the left end side of the main body 1 therein.
【００１８】温度調節ユニット７は、自動温度調整機能
を有していて、温度調節ハンドル３側から順に第１、第
２および第３の各ハウジング８，９，１０をそれぞれね
じ接合により一体化した外郭構造をもっている。そし
て、この温度調節ユニット７は、第１および第２の各ハ
ウジング８，９が断熱ブッシュ６の中にシール下で嵌合
固定されているとともに、第３ハウジング１０が水室４
ｃと混合室４ｄとの間の隔壁に嵌込まれて固定されてい
る。The temperature adjusting unit 7 has an automatic temperature adjusting function, and the first, second and third housings 8, 9 and 10 are integrated by screwing in order from the temperature adjusting handle 3 side. It has an outer shell structure. In the temperature control unit 7, the first and second housings 8 and 9 are fitted and fixed in the heat insulating bush 6 under sealing, and the third housing 10 is provided in the water chamber 4.
It is fitted and fixed in the partition wall between c and the mixing chamber 4d.
【００１９】第１ハウジング８には、図３に示すよう
に、一端を温度調節ハンドル３に連結したスピンドル８
ａが回転自在に組込まれているとともに、このスピンド
ル８ａと第１ハウジング８との間には、スピンドル８ａ
にねじ８ｃ接合したスライドブロック８ｂが配設されて
いる。スライドブロック８ｂは、キー接合等により第１
ハウジング８に対し軸線方向にのみ移動し軸線廻りには
回転しないように組込まれ、スピンドル８ａとの間にね
じ歯車機構を構成している。第１ハウジング８の一端面
には、後述する制御弁体１１が着離座する環状の湯弁座
８ｅが形成されている。As shown in FIG. 3, the first housing 8 has a spindle 8 whose one end is connected to the temperature control handle 3.
a is rotatably incorporated, and a spindle 8a is provided between the spindle 8a and the first housing 8.
A slide block 8b joined to the screw 8c is provided. The slide block 8b is a first key joint or the like.
It is incorporated so as to move only in the axial direction with respect to the housing 8 and does not rotate around the axis, and constitutes a screw gear mechanism with the spindle 8a. An annular hot water valve seat 8e is formed on one end surface of the first housing 8 for seating a control valve body 11 which will be described later.
【００２０】第２ハウジング９には、図４に示すよう
に、軸線方向の両端面が給湯室４ｂおよび水室４ｃにそ
れぞれ臨む配置の制御弁体１１が同軸上で移動可能に組
込まれており、この制御弁体１１は、軸線方向のほぼ中
央部に隔壁１１ａを設けてこれに流路孔１１ｂを開けた
断面形状を有している。そしてこの制御弁体１１は、給
湯室４ｂ内に位置する第１ハウジング８の一端の湯弁座
８ｅと第３ハウジング１０に形成されて水室４ｃ内に位
置する水弁座１０ａとの間を移動し、これら各弁座８
ｅ，１０ａとの間の弁開度を設定することにより、混合
水の温度を調整できるようになっている。As shown in FIG. 4, a control valve element 11 having axially opposite end surfaces facing the hot water supply chamber 4b and the water chamber 4c, respectively, is incorporated in the second housing 9 so as to be movable coaxially. The control valve body 11 has a sectional shape in which a partition wall 11a is provided at a substantially central portion in the axial direction and a flow path hole 11b is opened in the partition wall 11a. The control valve body 11 connects between the hot water valve seat 8e at one end of the first housing 8 located in the hot water supply chamber 4b and the water valve seat 10a formed in the third housing 10 and located in the water chamber 4c. Move each of these valve seats 8
The temperature of the mixed water can be adjusted by setting the valve opening between e and 10a.
【００２１】この制御弁体１１と給湯室４ｂおよび水室
４ｃとの間を隔離する断熱ブッシュ６には、軸線方向に
間隔を置いて、上流側に湯流入口６ａが設けられている
とともに、下流側に水流入口６ｂが設けられており、こ
れら両流入口６ａ，６ｂは、周方向のほぼ同一位置に穿
設され、湯および水の流入軸の周方向位置がほぼ同一に
なるように設定されている。The heat insulating bush 6 for separating the control valve body 11 from the hot water supply chamber 4b and the water chamber 4c is provided with a hot water inlet 6a on the upstream side with a gap in the axial direction. A water inlet 6b is provided on the downstream side, and both the inlets 6a and 6b are bored at substantially the same positions in the circumferential direction, and are set so that the positions of the hot water and water inflowing shafts are substantially the same in the circumferential direction. Has been done.
【００２２】一方、断熱ブッシュ６の内周側に位置する
第２ハウジング９には、図３に示すように、湯流入口６
ａからの湯を湯弁座８ｅ側に案内する湯導入口９ａ、お
よび水流入口６ｂからの水を水弁座１０ａ側に案内する
水導入口９ｂがそれぞれ設けられている。これら各導入
口９ａ，９ｂは、連結部を除き周方向のほぼ全周に亙っ
て設けられており、したがって、各流入口６ａ，６ｂか
ら流入した湯、水は、各導入口９ａ，９ｂで流入軸の方
向が変化することなく、そのまま各弁座８ｅ，１０ａ側
に流入し、制御弁体１１の移動により混合水温度が調整
されるようになっている。On the other hand, in the second housing 9 located on the inner peripheral side of the heat insulating bush 6, as shown in FIG.
A hot water inlet 9a for guiding the hot water from a to the hot water valve seat 8e side and a water introducing port 9b for guiding the water from the water inlet 6b to the hot water valve seat 10a side are respectively provided. These inlets 9a and 9b are provided over substantially the entire circumference in the circumferential direction except for the connecting portion. Therefore, the hot water and the water flowing in from the inlets 6a and 6b are the inlets 9a and 9b. In this way, the direction of the inflow shaft does not change, and it flows into the valve seats 8e and 10a as it is, and the temperature of the mixed water is adjusted by the movement of the control valve body 11.
【００２３】このような制御弁体１１を有する流路構造
では、図３に示すように、給湯室４ｂからの湯は、図中
実線矢印のように供給され、制御弁体１１の流路孔１１
ｂを通って第３ハウジング１０側に向かう。一方、水室
４ｃからの水は、図中破線矢印のように流れ、第３ハウ
ジング１０内で湯と混合されて混合室４ｄ側に送り出さ
れる。なお図３は、水弁座１０ａに制御弁体１１が着座
して水側を全閉にした状態を示している。In the flow path structure having such a control valve body 11, as shown in FIG. 3, the hot water from the hot water supply chamber 4b is supplied as shown by the solid line arrow in the drawing, and the flow path hole of the control valve body 11 is supplied. 11
Heading toward the third housing 10 through b. On the other hand, the water from the water chamber 4c flows as shown by the broken line arrow in the figure, is mixed with the hot water in the third housing 10 and is sent to the mixing chamber 4d side. Note that FIG. 3 shows a state in which the control valve element 11 is seated on the water valve seat 10a and the water side is fully closed.
【００２４】制御弁体１１を、温度調節ハンドル３によ
ってその軸線方向にシフトさせて設定するため、および
給水、給湯の温度変動等による混合水温度の変化に対応
して設定温度になるよう制御弁体１１を作動させるた
め、制御弁体１１を介しその両側位置には、バイアスス
プリング１２および感温スプリング１３がそれぞれ配設
されている。The control valve body 11 is set by shifting it in the axial direction by the temperature adjusting handle 3, and the control valve is set to the set temperature in response to changes in the temperature of the mixed water due to temperature fluctuations of water supply, hot water supply, etc. In order to operate the body 11, a bias spring 12 and a temperature sensitive spring 13 are arranged at both sides of the control valve body 11 via the control valve body 11.
【００２５】バイアススプリング１２は、その自然長に
対してこれよりも短くし、予め圧縮変形させたユニット
として第１ハウジング８内に収められており、このユニ
ット化のため、第１ハウジング８内を芯廻りには回転し
ないで軸線方向にのみ移動可能な外形とした保持座１
４、制御弁体１１に突当たるヘッド１５、および前記保
持座１４とヘッド１５との間を連接するフック１６を備
えている。そして、保持座１４は、その一端面がスライ
ドブロック８ｂに突当たり、このスライドブロック８ｂ
の移動とともに軸線方向に動作するようになっている。The bias spring 12 is stored in the first housing 8 as a unit which is shorter than the natural length of the bias spring 12 and is compressed and deformed in advance. Holding seat 1 with an outer shape that does not rotate around the core but can move only in the axial direction
4, a head 15 that abuts the control valve body 11, and a hook 16 that connects the holding seat 14 and the head 15 to each other. Then, one end surface of the holding seat 14 hits the slide block 8b, and the slide block 8b
It is designed to move in the axial direction with the movement of.
【００２６】一方、第３ハウジング１０内に収容されて
いる感温スプリング１３は、形状記憶合金をコイル状に
巻回して形成されており、この感温スプリング１３と制
御弁体１１との間には、ガイドスリーブ１７が介装され
ている。On the other hand, the temperature sensitive spring 13 housed in the third housing 10 is formed by winding a shape memory alloy in a coil shape, and between the temperature sensitive spring 13 and the control valve body 11. Is provided with a guide sleeve 17.
【００２７】感温スプリング１３は、第３ハウジング１
０内を通過する混合水の温度変動に応じてばね定数を変
化させ、バイアススプリング１２との間での制御弁体１
１の位置を調整して、予め設定した温度の混合水が継続
して得られるようにする自動温度調節機能を有してい
る。すなわち、混合水温度が設定値よりも高くなると、
感温スプリング１３は軸線長さが長くなるように変形
し、ガイドスリーブ１７を介し制御弁体１１を図３にお
いて左側に移動させる。これにより、湯弁座８ｅとの間
の弁開度が小さくなるとともに、水弁座１０ａとの間の
弁開度が大きくなり、水の混合比が増えて混合水温度を
設定値まで下げる向きに動作する。逆に、混合水温度が
低下すれば、感温スプリングは収縮変形して水弁座１０
ａ側の弁開度が小さくなり、混合水温度を同様に設定値
に復帰させる。The temperature sensitive spring 13 is provided in the third housing 1
The spring constant is changed in accordance with the temperature fluctuation of the mixed water passing through 0, and the control valve body 1 with the bias spring 12 is
It has an automatic temperature control function that adjusts the position of No. 1 to continuously obtain the mixed water of the preset temperature. That is, when the temperature of the mixed water becomes higher than the set value,
The temperature-sensitive spring 13 is deformed so that the axial length becomes long, and the control valve body 11 is moved to the left side in FIG. 3 via the guide sleeve 17. As a result, the valve opening with the hot water valve seat 8e becomes smaller, the valve opening with the water valve seat 10a becomes larger, the mixing ratio of water increases, and the mixed water temperature is lowered to the set value. To work. On the contrary, when the temperature of the mixed water decreases, the temperature sensitive spring contracts and deforms, and the water valve seat 10
The valve opening on the a side becomes smaller, and the mixed water temperature is similarly returned to the set value.
【００２８】ガイドスリーブ１７の制御弁体１１側の端
部には、周方向に一定間隔で複数のベーン１７ａが設け
られており、このベーン１７ａにより、制御弁体１１と
水弁座１０ａとの間から供給される水室４ｃからの水
が、ガイドスリーブ１７の軸線に対し旋回する流れとな
るよう撹拌され、流路孔１１ｂからの湯との混合が促進
される。また、ガイドスリーブ１７と感温スプリング１
３との間には、合成樹脂製の断熱スペーサ１８が介装さ
れている。A plurality of vanes 17a are provided at an end portion of the guide sleeve 17 on the side of the control valve body 11 at regular intervals in the circumferential direction, and the vanes 17a connect the control valve body 11 and the water valve seat 10a. The water supplied from the space from the water chamber 4c is agitated so that the water swirls with respect to the axis of the guide sleeve 17, and mixing with the hot water from the flow path hole 11b is promoted. In addition, the guide sleeve 17 and the temperature sensitive spring 1
A heat insulating spacer 18 made of synthetic resin is interposed between the heat insulating spacers 3 and 3.
【００２９】感温スプリング１３は、図５および図６に
示すように、制御弁体１１側の末端１３ａの位置が、湯
流入口６ａおよび水流入口６ｂ、すなわち湯Ｈの流入軸
および水Ｃの流入軸に対し、周方向に４５ないし１３５
度、より好ましくは９０度偏位した位置に配置されてお
り、この偏位により湯と水とを充分に混合させ、混合水
の温度斑を大幅に抑制できるようになっている。以下、
その理由について説明する。As shown in FIGS. 5 and 6, the temperature-sensitive spring 13 has a hot water inlet 6a and a water inlet 6b, that is, an inlet shaft of the hot water H and a water C at the position of the end 13a on the control valve body 11 side. 45 to 135 in the circumferential direction with respect to the inflow axis
It is arranged at a position deviated by 90 degrees, more preferably by 90 degrees, and due to this deviation, hot water and water can be sufficiently mixed and the temperature unevenness of the mixed water can be greatly suppressed. Less than,
The reason will be described.
【００３０】図６に示すように、感温スプリング１３の
末端１３ａが図中上端部に位置している状態で、混合水
の温度が設定値よりも高くなると、制御弁体１１は感温
スプリング１３の伸長変形により押圧されて、湯弁座８
ｅとの間の弁開度を小さくするように動作することにな
るが、その際制御弁体１１は平行移動はせず、前記末端
１３ａの位置と感温スプリング１３の中心線Ｏ1 とを含
む平面内で、図中下方に傾いた状態で移動し、その中心
線Ｏ2 は下向きとなる。このため、湯弁座８ｅとの間の
弁開度は、図７に示すように、図中上端部が狭く下端部
が広い状態となる。As shown in FIG. 6, when the temperature of the mixed water becomes higher than the set value when the end 13a of the temperature sensitive spring 13 is located at the upper end in the figure, the control valve element 11 causes the temperature sensitive spring 13 to move. It is pressed by the extension deformation of 13 and the hot water valve seat 8
However, the control valve body 11 does not move in parallel, and the position of the end 13a and the center line O 1 of the temperature sensitive spring 13 are not moved. In the plane including the plane, it moves downward in the figure, and its center line O 2 is directed downward. Therefore, as shown in FIG. 7, the valve opening with the hot water valve seat 8e is in a state where the upper end is narrow and the lower end is wide in the figure.
【００３１】ここで、湯Ｈおよび水Ｃの流入軸が、感温
スプリング１３の制御弁体１１側の末端１３ａの位置に
対し、周方向に９０度偏位しており、したがって、湯Ｈ
および水Ｃが感温スプリング１３の中心線Ｏ1 位置で紙
面に垂直に流入した場合を考える。Here, the inflow axes of the hot water H and the water C are deviated by 90 degrees in the circumferential direction with respect to the position of the end 13a of the temperature-sensitive spring 13 on the control valve body 11 side, and therefore the hot water H
Consider the case where the water C and the water C flow in perpendicular to the paper surface at the center line O 1 position of the temperature sensitive spring 13.
【００３２】水Ｃの方は、制御弁体１１と水弁座１０ａ
との間の弁開度が広いので、制御弁体１１が多少傾いて
いても、これに影響されることなくそのまま流入するこ
とになる。一方、湯Ｈの方は、制御弁体１１と湯弁座８
ｅとの間の弁開度が狭く、湯Ｈの圧力が高くなるため、
そのまま流入せずに湯弁座８ｅとの間の弁開度が最も広
い方に廻り込み、図８に示すように、水Ｃの流入軸に対
し周方向に９０度偏位した方向から流入することにな
る。このため、湯Ｈと水Ｃとが充分に混合され、混合水
の温度斑を大幅に抑えて感温スプリング１３の応答性を
向上させることができる。この効果は、湯Ｈと水Ｃとが
周方向に９０度偏位している場合に最も顕著であるが、
４５ないし１３５度の範囲であれば所期の効果は期待で
きる。これについては後に詳述する。For water C, the control valve body 11 and the water valve seat 10a are used.
Since the valve opening between the control valve 11 and the control valve 11 is wide, even if the control valve body 11 is slightly tilted, the control valve body 11 will flow in without being affected by this. On the other hand, for the hot water H, the control valve body 11 and the hot water valve seat 8 are used.
Since the valve opening with e is narrow and the pressure of the hot water H is high,
The valve opening with the hot water valve seat 8e does not flow in as it is, but it wraps around to the side with the widest valve opening, and as shown in FIG. It will be. For this reason, the hot water H and the water C are sufficiently mixed, the temperature unevenness of the mixed water can be significantly suppressed, and the responsiveness of the temperature sensitive spring 13 can be improved. This effect is most remarkable when the hot water H and the water C are deviated by 90 degrees in the circumferential direction,
A desired effect can be expected within the range of 45 to 135 degrees. This will be described in detail later.
【００３３】ところで、湯Ｈと水Ｃとの流入方向を周方
向に９０度偏位させることができるのは、これらの流入
軸と感温スプリング１３の末端１３ａとが、周方向に９
０度偏位しているからである。したがって、湯Ｈと水Ｃ
との流入方向を周方向に４５ないし１３５度偏位させる
には、これらの流入軸と感温スプリング１３の末端１３
ａの位置とを、周方向に４５ないし１３５度偏位させれ
ばよいことになる。By the way, the inflow direction of the hot water H and the water C can be deviated by 90 degrees in the circumferential direction because the inflow shaft and the end 13a of the temperature-sensitive spring 13 are moved in the circumferential direction by 9 degrees.
This is because it is deviated by 0 degree. Therefore, hot water H and water C
In order to deviate the inflow direction with respect to the circumferential direction by 45 to 135 degrees, these inflow shafts and the end 13 of the temperature sensitive spring 13 are displaced.
It is only necessary to deviate the position of a by 45 to 135 degrees in the circumferential direction.
【００３４】なお、以上は制御弁体１１と湯弁座８ｅと
の間の弁開度が狭い場合、すなわち制御弁体１１により
湯Ｈ側を制御している場合について説明したが、逆に制
御弁体１１と水弁座１０ａとの間の弁開度を狭くして水
Ｃ側を制御する場合にも同様のことがいえる。ただしこ
の場合には、水Ｃが制御弁体１１と水弁座１０ａとの間
の弁開度が最も広い方に廻り込んで流入することにな
る。The case where the valve opening between the control valve body 11 and the hot water valve seat 8e is narrow, that is, the case where the hot water H side is controlled by the control valve body 11 has been described above. The same applies to the case where the valve opening between the valve body 11 and the water valve seat 10a is narrowed to control the water C side. However, in this case, the water C flows into the control valve body 11 and the water valve seat 10a by wrapping around in the direction of the widest valve opening.
【００３５】次に、比較のために、湯Ｈおよび水Ｃの流
入軸と感温スプリング１３の末端１３ａの位置とが、周
方向の同一位置にある場合について説明する。Next, for comparison, a case where the inflow axes of the hot water H and the water C and the position of the end 13a of the temperature sensitive spring 13 are at the same position in the circumferential direction will be described.
【００３６】図９はこの状態を示すもので、この状態か
ら制御弁体１１が湯弁座８ｅ側に移動すると、図１０に
示すように、制御弁体１１の湯弁座８ｅに対する弁開度
は、湯Ｈの流入側が最も狭く、１８０度偏位した位置が
最も広い傾きとなる。このため、図１１に示すように、
湯Ｈは反対側に廻り込んで流入することになり、湯Ｈと
水Ｃとの流入方向が、周方向に１８０度偏位した状態と
なる。このため、湯Ｈと水Ｃとが混合されずに二層流と
なって流れ、混合水の温度斑が大きくなって感温スプリ
ング１３の応答性が悪くなる。FIG. 9 shows this state. When the control valve body 11 moves to the hot water valve seat 8e side from this state, as shown in FIG. 10, the valve opening degree of the control valve body 11 with respect to the hot water valve seat 8e. Is the narrowest on the inflow side of the hot water H, and has the widest inclination at a position displaced by 180 degrees. For this reason, as shown in FIG.
The hot water H wraps around on the opposite side and flows in, so that the inflow directions of the hot water H and the water C are deviated by 180 degrees in the circumferential direction. For this reason, the hot water H and the water C are not mixed but flow in a two-layer flow, the temperature unevenness of the mixed water becomes large, and the responsiveness of the temperature sensitive spring 13 deteriorates.
【００３７】なお、本実施の形態においては、感温スプ
リングの制御弁体側の末端を両流入口の流入軸に対し周
方向に４５ないし１３５度偏位した位置に配置した例を
示したが、感温スプリングの制御弁体とは反対側の末端
を同様に偏位した位置に配置しても同様の作用、効果を
奏する。In the present embodiment, an example is shown in which the end of the temperature-sensitive spring on the side of the control valve body is arranged at a position deviated by 45 to 135 degrees in the circumferential direction with respect to the inflow axes of both inlets. Even if the end of the temperature-sensitive spring on the side opposite to the control valve body is arranged at a similarly displaced position, the same action and effect can be obtained.
【００３８】[0038]
【実施例】本発明者等は、湯Ｈと水Ｃとの流入方向（偏
位角度）の変化と、混合水の吐水温度変化との関係につ
いて実験を行なった。EXAMPLES The present inventors conducted experiments on the relationship between the change in the inflow direction (deviation angle) of the hot water H and the water C and the change in the discharge temperature of the mixed water.
【００３９】なお、偏位角度は、図１２に示すように、
０度、４５度、９０度、１３５度、および１８０度の５
態様とし、実験条件は以下の通りである。The deviation angle is as shown in FIG.
0 degree, 45 degree, 90 degree, 135 degree, and 180 degree 5
As an embodiment, the experimental conditions are as follows.
【００４０】 給水圧力 ２kgf/cm2 給水温度 ５℃ 給湯圧力 ２〜４kgf/cm2 給湯温度 ８５℃ 以上の実験により、図１３に示す結果を得た。図１３
は、横軸に偏位角度、縦軸に吐水温度変化をとって、偏
位角度と吐水温度変化との関係を示したものである。Water supply pressure 2 kgf / cm 2 Water supply temperature 5 ° C. Hot water supply pressure 2-4 kgf / cm 2 Hot water supply temperature 85 ° C. The results shown in FIG. 13 were obtained by the above experiment. FIG.
Shows the relationship between the deviation angle and the change in discharge water temperature, with the horizontal axis indicating the deviation angle and the vertical axis indicating the change in discharge water temperature.
【００４１】図１３からも明らかなように、偏位角度が
９０度の場合に吐出温度変化が最も少なく最適である
が、４℃を吐出温度変化のがまん限界とすれば、偏位角
度が４５ないし１３５度の範囲内であればこの条件をほ
ぼ満たすことができることが判る。As is clear from FIG. 13, when the deviation angle is 90 degrees, the change in discharge temperature is the smallest and is optimal, but if the change in discharge temperature is 4 ° C., the deviation angle is 45. It can be seen that this condition can be almost satisfied if the angle is within the range of 135 to 135 degrees.
【００４２】[0042]
【発明の効果】以上説明したように本発明は、感温スプ
リングの末端を、湯および水の両流入口の流入軸に対
し、周方向に４５ないし１３５度偏位した位置に配置す
るようにしているので、制御弁体の傾きを有効に利用し
て、湯と水との流入方向を、周方向に４５ないし１３５
度偏位させることができる。このため、湯と水とが充分
に混合され、混合水の温度斑を抑えて感温スプリングの
応答性を向上させることができる。As described above, according to the present invention, the end of the temperature sensitive spring is arranged at a position displaced by 45 to 135 degrees in the circumferential direction with respect to the inflow axis of both the hot water and water inflow ports. Therefore, the inclination of the control valve body is effectively used to change the inflow direction of the hot water into the circumferential direction by 45 to 135.
Can be deviated. Therefore, the hot water and the water are sufficiently mixed, the temperature unevenness of the mixed water can be suppressed, and the responsiveness of the temperature sensitive spring can be improved.
【００４３】本発明はまた、感温スプリングの末端を、
両流入口の流入軸に対し、周方向にほぼ９０度偏位した
位置に配置するようにしているので、湯と水とを最も効
率よく混合することができる。The present invention also includes the end of the temperature sensitive spring,
The hot water and the hot water can be mixed most efficiently because they are arranged at positions displaced by 90 degrees in the circumferential direction with respect to the inflow shafts of both inflow ports.
【図１】本発明の実施の一態様に係る湯水混合栓を示す
全体斜視図。FIG. 1 is an overall perspective view showing a hot and cold water mixing valve according to an embodiment of the present invention.
【図２】図１の本体の部分の内部構造を示す部分断面
図。FIG. 2 is a partial cross-sectional view showing an internal structure of a main body portion of FIG.
【図３】図２の要部拡大図。FIG. 3 is an enlarged view of a main part of FIG. 2;
【図４】第１ハウジング、第２ハウジングに組込まれる
部材を示す分解斜視図。FIG. 4 is an exploded perspective view showing members incorporated in the first housing and the second housing.
【図５】湯および水の流入軸と感温スプリング末端の位
置との関係を示す説明図。FIG. 5 is an explanatory diagram showing the relationship between the inflow axis of hot water and water and the position of the end of the temperature-sensitive spring.
【図６】感温スプリング末端の位置と制御弁体の傾きと
の関係を示す説明図。FIG. 6 is an explanatory diagram showing the relationship between the position of the end of the temperature sensitive spring and the inclination of the control valve body.
【図７】制御弁体の傾きと各弁座との間の弁開度の関係
を示す説明図。FIG. 7 is an explanatory diagram showing the relationship between the valve opening degree between the tilt of the control valve body and each valve seat.
【図８】図７の状態における湯および水の流入方向を示
す説明図。8 is an explanatory diagram showing hot water and water inflow directions in the state of FIG. 7. FIG.
【図９】湯および水の流入軸と感温スプリング末端の位
置とが周方向に同一位置となっている状態を示す説明
図。FIG. 9 is an explanatory view showing a state where the inflow shaft of hot water and water and the position of the end of the temperature sensitive spring are at the same position in the circumferential direction.
【図１０】図９の構成における制御弁体の傾きの状態を
示す説明図。10 is an explanatory diagram showing a tilted state of the control valve element in the configuration of FIG.
【図１１】図１０の状態における湯および水の流入方向
を示す説明図。11 is an explanatory view showing hot water and the inflow direction of water in the state of FIG.
【図１２】本発明者等が行なった実験の内容を示す説明
図。FIG. 12 is an explanatory diagram showing the contents of an experiment conducted by the present inventors.
【図１３】図１２の実験結果を示すグラフ。FIG. 13 is a graph showing the experimental results of FIG.
【図１４】感温スプリングの末端に生じる段差を示す説
明図。FIG. 14 is an explanatory diagram showing a step formed at the end of the temperature-sensitive spring.
【図１５】段差をなくするための研削方法を示す説明
図。FIG. 15 is an explanatory view showing a grinding method for eliminating a step.
【図１６】研削してもスプリングの戻り作用により段差
が生じることを示す説明図。FIG. 16 is an explanatory diagram showing that a step is generated due to the returning action of the spring even after grinding.
１ 本体 ２ 切換ハンドル ３ 温度調節ハンドル ４ｄ 混合室 ５ ケース ５ａ 切換弁体 ５ｂ，８ａ スピンドル ６ 断熱ブッシュ ６ａ 湯流入口 ６ｂ 水流入口 ７ 温度調節ユニット ８ 第１ハウジング ８ｂ スライドブロック ８ｅ 湯弁座 ９ 第２ハウジング ９ａ 湯導入口 ９ｂ 水導入口 １０ 第３ハウジング １０ａ 水弁座 １１ 制御弁体 １２ バイアススプリング １３ 感温スプリング １３ａ 末端 Ｏ1 ，Ｏ2 中心線 Ｈ 湯 Ｃ 水1 Main Body 2 Switching Handle 3 Temperature Control Handle 4d Mixing Chamber 5 Case 5a Switching Valve Body 5b, 8a Spindle 6 Insulation Bushing 6a Hot Water Inlet 6b Water Inlet 7 Temperature Control Unit 8 1st Housing 8b Slide Block 8e Hot Water Valve Seat 9 2nd Housing 9a Hot water inlet 9b Water inlet 10 Third housing 10a Water valve seat 11 Control valve body 12 Bias spring 13 Temperature sensitive spring 13a Terminal O 1 , O 2 Center line H hot water C water
Claims (2)
口とが穿設され、これら両流入口の下流位置に湯水混合
室が形成されたハウジングと、 前記ハウジング内に軸線方向に摺動可能に配設され、前
記両流入口の間を摺動して湯、水の流入量を制御する制
御弁体と、 前記ハウジング内の湯水混合室近傍位置に配設され、前
記制御弁体の軸線方向移動を制御する形状記憶合金製の
感温スプリングと、 を具備する湯水混合栓において、 前記感温スプリングの末端を、前記両流入口の流入軸に
対し、周方向に４５ないし１３５度偏位した位置に配置
したことを特徴とする湯水混合栓。1. A housing in which a hot water inlet and a cold water inlet are provided at intervals in the axial direction, and a hot and cold water mixing chamber is formed at a position downstream of these hot water inlets, and a housing which slides axially in the housing. A control valve body that is movably disposed and controls the inflow amount of hot water and water by sliding between the two inlets; and a control valve body that is disposed in a position near the hot water mixing chamber in the housing. A temperature-sensitive spring made of a shape memory alloy for controlling the axial movement of the temperature-sensing alloy, and a hot and cold water mixing valve, wherein the end of the temperature-sensitive spring is 45 to 135 degrees in the circumferential direction with respect to the inflow axes of the both inlets. A hot and cold water mixing tap characterized by being placed at an eccentric position.
軸に対し、周方向にほぼ９０度偏位した位置に配置され
ていることを特徴とする請求項１記載の湯水混合栓。2. The hot and cold water mixing valve according to claim 1, wherein the end of the temperature sensitive spring is arranged at a position deviated by approximately 90 degrees in the circumferential direction with respect to the inflow shafts of both inflow ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31528695A JP3310149B2 (en) | 1995-12-04 | 1995-12-04 | Hot water mixer tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31528695A JP3310149B2 (en) | 1995-12-04 | 1995-12-04 | Hot water mixer tap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09152050A true JPH09152050A (en) | 1997-06-10 |
| JP3310149B2 JP3310149B2 (en) | 2002-07-29 |
Family
ID=18063577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31528695A Expired - Fee Related JP3310149B2 (en) | 1995-12-04 | 1995-12-04 | Hot water mixer tap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3310149B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005326020A (en) * | 2005-06-15 | 2005-11-24 | San-Ei Faucet Mfg Co Ltd | Thermo-combination faucet |
| JP2006307971A (en) * | 2005-04-28 | 2006-11-09 | Nippon Thermostat Co Ltd | Hot water and water combination plug |
| JP2008002635A (en) * | 2006-06-23 | 2008-01-10 | Kvk Corp | Combination faucet |
-
1995
- 1995-12-04 JP JP31528695A patent/JP3310149B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006307971A (en) * | 2005-04-28 | 2006-11-09 | Nippon Thermostat Co Ltd | Hot water and water combination plug |
| WO2006117903A1 (en) * | 2005-04-28 | 2006-11-09 | Nippon Thermostat Co., Ltd | Hot water-water mixing faucet |
| US7832650B2 (en) | 2005-04-28 | 2010-11-16 | Nippon Thermostat Co., Ltd. | Hot water-water mixing faucet |
| JP2005326020A (en) * | 2005-06-15 | 2005-11-24 | San-Ei Faucet Mfg Co Ltd | Thermo-combination faucet |
| JP4700420B2 (en) * | 2005-06-15 | 2011-06-15 | 株式会社三栄水栓製作所 | Thermo-type water / water mixing faucet |
| JP2008002635A (en) * | 2006-06-23 | 2008-01-10 | Kvk Corp | Combination faucet |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3310149B2 (en) | 2002-07-29 |
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