JPH0842744A - Hot water and water mixing device - Google Patents
Hot water and water mixing deviceInfo
- Publication number
- JPH0842744A JPH0842744A JP19590194A JP19590194A JPH0842744A JP H0842744 A JPH0842744 A JP H0842744A JP 19590194 A JP19590194 A JP 19590194A JP 19590194 A JP19590194 A JP 19590194A JP H0842744 A JPH0842744 A JP H0842744A
- Authority
- JP
- Japan
- Prior art keywords
- water
- hot
- temperature
- spring
- valve body
- 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.)
- Pending
Links
Landscapes
- Temperature-Responsive Valves (AREA)
- Details Of Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、湯水混合装置に関し、
詳しくは、温度によってばね定数が変化する素材からな
るばねを用いて、可動弁体を付勢して湯水の混合を行な
う湯水混合装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot and cold water mixing device,
More specifically, the present invention relates to a hot and cold water mixing device that biases a movable valve element to mix hot and cold water using a spring made of a material whose spring constant changes with temperature.
【0002】[0002]
【従来の技術】従来、この種の湯水混合装置として、温
度によって形状が変化する形状記憶合金を用いて可動弁
体を付勢することにより、混合湯水の温度を一定に制御
する自動温度調節式湯水混合栓が提案されている(実公
昭61−44062)。これは、形状記憶合金が、特定
の温度下で一定の形状にセットすると、その他の温度下
で物理的に形状を変化させても当初のセット温度を与え
ると、再びセット時の形状に復元するという特徴を利用
したものである。こうした装置における形状記憶合金を
用いたばねは、ワックスサーモ等より熱容量が小さく、
温度変化に対して敏感に作動するという特長を備えてい
る。2. Description of the Related Art Conventionally, as this kind of hot and cold water mixing apparatus, an automatic temperature control system for controlling the temperature of the mixed hot and cold water constantly by energizing a movable valve element using a shape memory alloy whose shape changes with temperature A hot and cold water mixing valve has been proposed (Jitsuko Sho 61-44062). This is because when the shape memory alloy is set to a certain shape at a specific temperature, it will be restored to the shape at the time of setting when the initial setting temperature is given even if the shape is physically changed at other temperatures. This is the feature that is used. A spring using a shape memory alloy in such a device has a smaller heat capacity than wax thermos,
It has the feature that it operates sensitively to temperature changes.
【0003】[0003]
【発明が解決しようとする課題】上記湯水混合装置で
は、可動弁体の一端部を感温ばねで付勢すると共に、可
動弁体の他端部を上記感温ばねの付勢方向と反対方向へ
バイアスばねで付勢し、可動弁体を可動させる。これに
より、可動弁体の両側に設けた湯側ポートと水側ポート
との開口面積の割合を変え、つまり湯側ポートから流出
する高温水と水側ポートから流出する低温水との混合比
を変えることにより、混合湯水の吐水温度を所定温度に
調節している。しかし、湯水混合装置では、高温水と低
温水と混合動作時に、不快感をもたらす異音が発生する
という問題があった。In the hot and cold water mixing device, one end of the movable valve element is biased by the temperature sensitive spring, and the other end of the movable valve element is in the direction opposite to the biasing direction of the temperature sensitive spring. The movable valve element is moved by urging it with a bias spring. As a result, the ratio of the opening area of the hot water port and the water side port provided on both sides of the movable valve body is changed, that is, the mixing ratio of the high temperature water flowing out from the hot water port and the low temperature water flowing out from the water side port is changed. By changing the temperature, the water discharge temperature of the mixed hot water is adjusted to a predetermined temperature. However, the hot and cold water mixing device has a problem that an abnormal noise that causes discomfort is generated during the mixing operation of the high temperature water and the low temperature water.
【0004】本発明は、上記従来の技術の問題点を解決
することを課題とし、高温水と低温水との混合動作時
に、不快感をもたらすような異音を発生しない湯水混合
装置を提供することを目的とする。An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a hot and cold water mixing apparatus which does not generate an unpleasant noise when mixing high temperature water and low temperature water. The purpose is to
【0005】[0005]
【課題を解決するための手段】上記課題を解決するため
になされた請求項1の発明は、高温水と低温水とを混合
して目標設定温度の混合湯水を吐水する湯水混合装置に
おいて、高温水を吐出する湯側ポートと低温水を吐出す
る水側ポートを有すると共に上記両ポートに連通する摺
動孔を有するケーシング本体と、上記摺動孔に摺動自在
に嵌合し、上記湯側ポートから吐出される高温水と水側
ポートから吐出される低温水との混合比を調節すると共
にその内側に上記高温水または低温水を通す弁体内流路
を有する可動弁体と、所定の温度範囲において温度に応
じてばね定数が変化する材料からなり、混合湯水の温度
上昇に伴い湯の割合を減少させる方向へ上記可動弁体を
付勢する感温ばねと、上記可動弁体を上記方向とは反対
方向に付勢するバイアスばねと、上記湯側ポートまたは
水側ポートの少なくとも一方に、高温水または低温水を
バイアスばねまたは感温ばねを迂回させて可動弁体の弁
体内流路に導くガイド流路を形成するガイド流路形成部
材と、を備えたことを特徴とする。In order to solve the above-mentioned problems, the invention of claim 1 is a hot and cold water mixing apparatus for mixing hot water and low temperature water to discharge hot and cold water having a target set temperature. A casing body having a hot water side port for discharging water and a cold water side water port, and a sliding hole communicating with the both ports, and a slidably fitted into the sliding hole. Adjusting the mixing ratio of high-temperature water discharged from the port and low-temperature water discharged from the water side port, and a movable valve element having a valve body channel inside which the high-temperature water or low-temperature water passes, and a predetermined temperature Made of a material whose spring constant changes in accordance with the temperature in the range, and a temperature-sensitive spring for urging the movable valve body in the direction of decreasing the proportion of the hot water as the temperature of the mixed hot water rises, and the movable valve body in the above direction. Biasing force in the direction opposite to A guide for forming a guide flow path in at least one of the ass spring and the hot water side port or the water side port, which guides high-temperature water or low-temperature water to the valve body channel of the movable valve body by bypassing the bias spring or the temperature sensitive spring. And a flow path forming member.
【0006】請求項2の発明は、請求項1において、バ
イアスばねを受けるバイアスばね受け部材を備え、該バ
イアスばね受け部材に上記ガイド流路形成部材を設けた
ものである。According to a second aspect of the present invention, in the first aspect, a bias spring receiving member for receiving the bias spring is provided, and the guide flow path forming member is provided on the bias spring receiving member.
【0007】請求項3の発明は、高温水と低温水とを混
合して目標設定温度の混合湯水を吐水する湯水混合装置
において、高温水を吐出する湯側ポートと低温水を吐出
する水側ポートを有すると共に上記両ポートに連通する
摺動孔を有するケーシング本体と、上記摺動孔に摺動自
在に嵌合し、上記湯側ポートから吐出される高温水と水
側ポートから吐出される低温水との混合比を調節すると
共にその内側に上記高温水または低温水を通す弁体内流
路を有する可動弁体と、所定の温度範囲において温度に
応じてばね定数が変化する材料からなり、混合湯水の温
度上昇に伴い湯の割合を減少させる方向へ上記可動弁体
を付勢する感温ばねと、上記可動弁体を上記方向とは反
対方向に付勢するバイアスばねと、を備え、上記可動弁
体は、その外周から内周にかけて、湯側ポートまたは水
側ポートの流路面積を徐々に広くして上記高温水または
低温水を上記弁体内流路に導くガイド面を有することを
特徴とする。According to a third aspect of the present invention, in a hot and cold water mixing apparatus for mixing hot water and low temperature water to discharge hot and cold water having a target set temperature, a hot water side port for discharging high temperature water and a water side for discharging low temperature water. A casing body having a port and a sliding hole communicating with the both ports, and a high temperature water discharged from the hot water side port and discharged from the water side port, which are slidably fitted in the sliding hole. A movable valve body having a valve body flow passage through which the high-temperature water or the low-temperature water is passed while adjusting the mixing ratio with low-temperature water, and a material whose spring constant changes depending on the temperature in a predetermined temperature range, A temperature sensitive spring for urging the movable valve body in a direction in which the proportion of the hot water is reduced as the temperature of the mixed hot water rises; and a bias spring for urging the movable valve body in a direction opposite to the direction, Is the movable valve disc on the outer periphery? Toward the inner periphery, and having a guide surface which gradually widen the flow path area of the hot water side ports or water-side port leads to the hot water or cold water to the valve body passage.
【0008】請求項4では、高温水及び低温水をそれぞ
れ吐出する湯側ポートまたは水側ポートに連通した混合
室と、上記両ポートから吐出される高温水及び/または
低温水の流入量を制御し、高温水と低温水との混合比を
調節すると共にその内側に上記高温水または低温水を通
す弁体内流路を有する可動弁体と、上記混合室で混合さ
れた高温水と低温水との混合湯水に晒され、該混合湯水
の温度に応じてばね定数が変化する感温ばねと、該感温
ばねの付勢力に比例して上記可動弁体を駆動する駆動手
段と、該駆動手段の駆動方向と反対方向へ可動弁体を押
圧するバイアスばねと、上記湯側ポートまたは水側ポー
トの少なくとも一方に、高温水または低温水をバイアス
ばねを迂回させて可動弁体の弁体内流路に導くガイド流
路を形成するガイド流路形成部材と、を備えることを特
徴とする。According to a fourth aspect of the present invention, the hot water port and the mixing chamber for communicating the low temperature water or the mixing chamber communicating with the water port and the inflow amount of the high temperature water and / or the low temperature water discharged from the both ports are controlled. , And a movable valve body having a valve body flow passage through which the high temperature water or the low temperature water is passed, while adjusting the mixing ratio of the high temperature water and the low temperature water, and the high temperature water and the low temperature water mixed in the mixing chamber. Of the temperature sensitive spring whose spring constant changes according to the temperature of the mixed hot and cold water, a driving means for driving the movable valve body in proportion to the biasing force of the temperature sensitive spring, and the driving means. The bias spring that presses the movable valve body in the direction opposite to the driving direction of the movable valve body, and at least one of the hot water side port and the water side port bypasses the bias spring with high-temperature water or low-temperature water, and the valve body flow passage of the movable valve body. Forming a guide channel leading to the Characterized in that it comprises a flow path forming member.
【0009】[0009]
【作用】本発明に係る請求項1の湯水混合装置では、ケ
ーシング本体の摺動孔に可動弁体が摺動し、湯側ポート
と水側ポートから吐水される高温水と低温水との混合比
を変える。可動弁体は、感温ばねに付勢されると共にそ
の反対方向へバイアスばねで付勢されている。感温ばね
は、混合湯水の温度に応じてそのばね定数を変化して、
バイアスばねのばね力との釣合った位置まで可動弁体を
移動するので、目標温度に調節された混合湯水が吐水さ
れる。In the hot and cold water mixing apparatus according to the first aspect of the present invention, the movable valve body slides in the sliding hole of the casing body to mix hot water and low temperature water discharged from the hot water port and the hot water port. Change the ratio. The movable valve body is biased by the temperature sensitive spring and biased in the opposite direction by the bias spring. The temperature-sensitive spring changes its spring constant according to the temperature of the mixed hot water,
Since the movable valve body is moved to a position in balance with the spring force of the bias spring, the mixed hot and cold water adjusted to the target temperature is discharged.
【0010】また、ガイド流路形成部材は、湯側ポート
または水側ポートから、可動弁体の弁体内流路に接続さ
れるガイド流路を、バイアスばねまたは感温ばねを迂回
するように形成しているので、感温ばねやバイアスばね
の巻線間の狭い部分を高温水や低温水が通ることがない
から、急激な流路面積の増加に伴うことによって生じる
異音が発生しない。The guide passage forming member is formed so as to bypass the bias spring or the temperature sensitive spring from the hot water side port or the water side port to the guide passage connected to the valve body passage of the movable valve body. Therefore, high-temperature water and low-temperature water do not pass through the narrow portion between the windings of the temperature-sensitive spring and the bias spring, so that no abnormal noise is generated due to the rapid increase of the flow passage area.
【0011】請求項2では、バイアスばねを受けるため
のバイアスばね受け部材を設けると共に、そのバイアス
ばね受け部材に請求項1に記載のガイド流路形成部材を
設けることにより、ガイド流路形成部材をバイアスばね
に近接した位置にコンパクトに構成している。According to a second aspect of the present invention, a bias spring receiving member for receiving the bias spring is provided, and the guide flow passage forming member according to the first aspect is provided on the bias spring receiving member, whereby the guide flow passage forming member is provided. It is compactly constructed near the bias spring.
【0012】請求項3では、可動弁体にガイド面を設け
ることにより、該ガイド面が湯側ポートまたは水側ポー
トの流路面積を弁体内流路に向けて徐々に大きくしてい
るので、流路面積の急激な変化がなく、これに伴う不快
感をもたらす異音が発生しない。In the present invention, since the movable valve body is provided with the guide surface, the guide surface gradually increases the flow passage area of the hot water port or the water side port toward the flow passage in the valve body. There is no abrupt change in the flow path area, and no abnormal noise that causes discomfort is generated.
【0013】また、請求項4の発明では、湯水混合装置
として、感温ばねのばね定数の変化を電磁ソレノイドや
モータ等で構成した駆動手段により可動弁体の移動力と
して変換することで、可動弁体の摺動により高温水と低
温水との混合比を変えるものに適用したものである。こ
の場合において、感温ばねは、混合湯水の温度に対して
敏感であるので、混合湯水の温度制御の応答性に優れた
特性を示す。Further, according to the invention of claim 4, the hot water mixing device is movable by converting the change of the spring constant of the temperature sensitive spring into the moving force of the movable valve body by the driving means constituted by an electromagnetic solenoid or a motor. It is applied to the one that changes the mixing ratio of high temperature water and low temperature water by sliding the valve body. In this case, since the temperature-sensitive spring is sensitive to the temperature of the mixed hot water, it exhibits excellent responsiveness in temperature control of the mixed hot water.
【0014】[0014]
【実施例】以上説明した本発明の構成・作用を一層明ら
かにするために、以下本発明の好適な実施例について説
明する。Preferred embodiments of the present invention will be described below in order to further clarify the structure and operation of the present invention described above.
【0015】図1は本発明の一実施例に係る湯水混合装
置10を示す断面図である。同図において、湯水混合装
置10は、外側ケーシング20と、この外側ケーシング
20内に収納された内側ケーシング30と、外側ケーシ
ング20の端部に取り付けられた操作ハンドル40と、
内側ケーシング30内に収納されたケーシング本体50
と、を備えている。FIG. 1 is a sectional view showing a hot and cold water mixing apparatus 10 according to an embodiment of the present invention. In FIG. 1, the hot and cold water mixing device 10 includes an outer casing 20, an inner casing 30 housed in the outer casing 20, an operation handle 40 attached to an end portion of the outer casing 20,
Casing body 50 housed in inner casing 30
And
【0016】ケーシング本体50は、後述する弁機構な
どを収納する室を備えており、つまり、図示の右側から
順に、湯水混合室80、湯流入室90、スライド室96
を備えている。湯水混合室80には、Oリングでシール
された水側弁座部材70が嵌合されている。水側弁座部
材70には、水側ポート106を有する水側弁座108
が形成されている。上記水側ポート106は、外側ケー
シング20と内側ケーシング30との間に形成された水
導入流路102に接続されている。一方、ケーシング本
体50には、図示しない給湯機に接続された湯流路11
4が形成されると共に、この湯流路114に接続される
湯側ポート116を有する湯側弁座118が形成されて
いる。The casing main body 50 is provided with a chamber for accommodating a valve mechanism described later, that is, the hot and cold water mixing chamber 80, the hot water inflow chamber 90, and the slide chamber 96 in order from the right side in the drawing.
It has. A water side valve seat member 70 sealed by an O-ring is fitted into the hot and cold water mixing chamber 80. The water side valve seat member 70 includes a water side valve seat 108 having a water side port 106.
Are formed. The water side port 106 is connected to the water introduction flow passage 102 formed between the outer casing 20 and the inner casing 30. On the other hand, the casing body 50 has a hot water flow path 11 connected to a hot water supply device (not shown).
4 is formed, and a hot water valve seat 118 having a hot water port 116 connected to the hot water flow path 114 is also formed.
【0017】湯流入室90には、上記水側弁座108お
よび湯側弁座118に着脱または離反する可動弁体16
0が摺動自在に嵌合されている。この可動弁体160
は、湯水混合室80内に収納された感温ばね130のば
ね力を受けると共に、バイアスばね150によるばね力
を受け、これらのばね力の釣合いにより、その位置が定
まる。感温ばね130は、水側弁座部材70に支持され
たばね受け部材180とスペーサ190との間に架設さ
れている。この感温ばね130は、温度に応じてばね定
数が変化する金属によって形成されており、バイアスば
ね150は、温度に関して一定のばね定数を有する通常
のばね材料によって形成されている。In the hot water inflow chamber 90, the movable valve body 16 is attached to or detached from or separated from the water side valve seat 108 and the hot water side valve seat 118.
0 is slidably fitted. This movable valve body 160
Receives the spring force of the temperature-sensitive spring 130 housed in the hot and cold water mixing chamber 80 and the bias force of the bias spring 150, and its position is determined by the balance of these spring forces. The temperature-sensitive spring 130 is installed between the spring receiving member 180 supported by the water side valve seat member 70 and the spacer 190. The temperature-sensitive spring 130 is made of metal whose spring constant changes with temperature, and the bias spring 150 is made of a normal spring material having a constant spring constant with respect to temperature.
【0018】予荷重調節機構200は、バイアスばね1
50の予荷重を調節することにより、混合湯水の目標温
度を変更するものであり、操作ハンドル40を回転する
ことにより、スライド機構250を介してばね受け部材
210が進退し、これによりバイアスばね150の予荷
重が増減する。予荷重の増減により、バイアスばね15
0のばね力と感温ばね130のばね力とが釣り合う位置
まで可動弁体160が変位して、目標温度が変更され
る。The preload adjusting mechanism 200 includes the bias spring 1
The target temperature of the mixed hot water is changed by adjusting the preload of 50. By rotating the operation handle 40, the spring receiving member 210 is advanced and retracted via the slide mechanism 250, whereby the bias spring 150 is moved. The preload of increases or decreases. Depending on the increase / decrease in preload, the bias spring 15
The movable valve body 160 is displaced to a position where the spring force of 0 and the spring force of the temperature sensitive spring 130 are balanced, and the target temperature is changed.
【0019】次に、上記湯水混合装置10の湯水の温度
調節動作について説明する。いま、給湯機からの給湯温
度、水道水温度または流量などの条件が定常状態にあ
り、混合湯水が目標温度で吐水しているときには、可動
弁体160は、湯水混合室80内の混合湯水により感温
ばね130に発生する力と、バイアスばね150のばね
力との釣合により位置が決定されて静止している。この
状態から、給湯機からの給湯温度、水道水温または流量
などの条件が外乱により変動すると、この変動に応じて
湯水混合室80内の混合湯水温度が目標温度からずれて
温度偏差を生じる。感温ばね130は、この温度変化に
応じてばね定数を変化させ、その結果、感温ばね130
のばね力が変化する。このとき、混合湯水温度が目標温
度より高い場合には、感温ばね130のばね力が増大
し、バイアスばね150の予荷重を増加させながら可動
弁体160を図1の右方向へ変位させるので、湯の割合
が減少し、混合湯水温度が低下する。Next, the temperature adjusting operation of the hot and cold water mixing apparatus 10 will be described. Now, when the conditions such as the hot water supply temperature from the water heater, the tap water temperature or the flow rate are in a steady state and the mixed hot water is spouting at the target temperature, the movable valve body 160 is operated by the mixed hot water in the hot water mixing chamber 80. The position is determined by the balance between the force generated in the temperature-sensitive spring 130 and the spring force of the bias spring 150, and the temperature-sensitive spring 130 is stationary. From this state, if conditions such as the hot water supply temperature from the water heater, the tap water temperature, or the flow rate fluctuate due to disturbance, the mixed hot and cold water temperature in the hot and cold water mixing chamber 80 deviates from the target temperature according to this fluctuation, and a temperature deviation occurs. The temperature-sensitive spring 130 changes the spring constant according to this temperature change, and as a result, the temperature-sensitive spring 130.
The spring force of changes. At this time, when the temperature of the mixed hot water is higher than the target temperature, the spring force of the temperature sensitive spring 130 increases, and the movable valve body 160 is displaced rightward in FIG. 1 while increasing the preload of the bias spring 150. , The proportion of hot water decreases and the temperature of mixed hot and cold water decreases.
【0020】一方、混合湯水温度が目標温度より低い場
合には、感温ばね130のばね力が減少し、バイアスば
ね150の作用により可動弁体160が図1の左方向へ
変位するのを許容するので、湯の割合が増加すると同時
に水の割合が減少し、混合湯水温度が上昇する。こうし
た感温ばね130の作用により混合湯水温度は、目標温
度に向かうよう調節される。On the other hand, when the temperature of the mixed hot and cold water is lower than the target temperature, the spring force of the temperature sensitive spring 130 decreases and the action of the bias spring 150 allows the movable valve body 160 to be displaced leftward in FIG. Therefore, the proportion of hot water increases and the proportion of water decreases at the same time, and the temperature of the mixed hot water rises. The temperature of the mixed hot water is adjusted toward the target temperature by the action of the temperature sensitive spring 130.
【0021】こうした構成の湯水混合装置10におい
て、その目標温度を変更するには、予荷重調節機構20
0の一部を構成する操作ハンドル40を所定方向へ回転
することにより行なう。すなわち、操作ハンドル40を
所定方向へ回転すると、スライド機構250を介してば
ね受け部材210が図1の左方向へ移動してバイアスば
ね150が圧縮変位し、バイアスばね150による可動
弁体160に対する予荷重が増大する。一方、操作ハン
ドル40を反対方向へ回転すると、スライド機構250
を介して図1の右方向へ移動してバイアスばね150が
伸張変位し、バイアスばね150による可動弁体160
に対する予荷重が減少する。In the hot and cold water mixing apparatus 10 having such a configuration, the preload adjusting mechanism 20 is used to change the target temperature.
This is performed by rotating the operation handle 40 that constitutes a part of 0 in a predetermined direction. That is, when the operation handle 40 is rotated in a predetermined direction, the spring receiving member 210 moves leftward in FIG. 1 via the slide mechanism 250, and the bias spring 150 is compressed and displaced, and the bias spring 150 pre-displaces the movable valve body 160. The load increases. On the other hand, when the operation handle 40 is rotated in the opposite direction, the slide mechanism 250
1 is moved to the right in FIG. 1 and the bias spring 150 is stretched and displaced.
The preload on the is reduced.
【0022】このようなバイアスばね150の予荷重の
増加により、可動弁体160は、湯側弁座118の流路
を広げると同時に水側弁座108の流路を狭める位置で
釣合うよう調節されて、湯量の増加と水の減少による湯
水混合比を変更することにより、混合湯水の吐水温度が
高くなり、逆に、予荷重の減少により、可動弁体160
は、湯側弁座118の流路を狭めると同時に水側弁座1
08の流路を広げる位置で釣合うように調節されて、混
合湯水の吐水温度が低くなる。By increasing the preload of the bias spring 150 as described above, the movable valve body 160 is adjusted so that the flow passage of the hot water valve seat 118 is widened and at the same time the flow passage of the water side valve seat 108 is narrowed. By changing the hot-water mixing ratio by increasing the amount of hot water and decreasing the amount of hot water, the discharge temperature of the mixed hot water becomes high, and conversely, the movable valve body 160 is reduced due to the decrease in preload.
Narrows the flow path of the hot water valve seat 118, and at the same time, the hot water valve seat 1
The temperature of the mixed hot water is adjusted to be balanced at the position where the flow passage 08 is widened to lower the water discharge temperature.
【0023】次に湯水混合装置10の各部の構成および
その動作についてさらに詳細に説明する。まず、可動弁
体160の構成について説明する。図2において、可動
弁体160は、筒状部162と、この筒状部162の両
端部に設けられた水側着座部164および湯側着座部1
66と、筒状部162の内周部に形成されかつ流路部1
72を有する環状係止部168と、を備えている。上記
環状係止部168は、その端部でバイアスばね150を
支持し、また他端部で感温ばね130を受けるスペーサ
190を支持している。また、可動弁体160の湯側着
座部166から流路部172との間の面は、ガイド面1
74となっている。ガイド面174は、湯流路114か
ら流路部172に向かうにしたがって環状係止部168
側に傾斜した湾曲状に形成されている。Next, the configuration and operation of each part of the hot and cold water mixing apparatus 10 will be described in more detail. First, the configuration of the movable valve body 160 will be described. In FIG. 2, the movable valve body 160 includes a tubular portion 162, water side seating portions 164 and hot water side seating portions 1 provided at both ends of the tubular portion 162.
66 and the flow path portion 1 formed on the inner peripheral portion of the tubular portion 162.
And an annular locking portion 168 having 72. The annular locking portion 168 supports the bias spring 150 at its end, and supports the spacer 190 for receiving the temperature sensitive spring 130 at the other end. In addition, the surface of the movable valve body 160 between the hot water side seat portion 166 and the flow path portion 172 is the guide surface 1
It is 74. The guide surface 174 has an annular locking portion 168 as it goes from the hot water flow passage 114 toward the flow passage portion 172.
It is formed in a curved shape inclined to the side.
【0024】上記可動弁体160は、感温ばね130と
バイアスばね150との釣合で可動して、その水側着座
部164が水側弁座108に着座したときには(図1の
状態)、給湯機の高温水だけが吐水され、一方、湯側着
座部166が湯側弁座118に着座したときには、水道
水(低温水)だけが吐水され、両着座部164,166
のいずれも着座していないときには、その水側ポート1
06と湯側ポート116の流路開口に応じた量の低温水
または高温水が吐水されて湯水混合室80にて混合され
る。The movable valve body 160 is movable by the balance between the temperature sensitive spring 130 and the bias spring 150, and when the water side seating portion 164 of the movable valve body 160 is seated on the water side valve seat 108 (state of FIG. 1), When only the hot water of the water heater is discharged, while when the hot water side seat 166 is seated on the hot water valve seat 118, only tap water (low temperature water) is discharged and both seats 164, 166 are placed.
When neither seat is seated, its water side port 1
06 and low-temperature water or high-temperature water in an amount corresponding to the flow path opening of the hot-water port 116 is discharged and mixed in the hot-water mixing chamber 80.
【0025】次に、感温ばね130について説明する。
感温ばね130の金属材料としては、NiTi合金から
なる形状記憶合金(SMA)の範疇に属する合金を用い
ることができる。この種のSMAは、温度に応じて弾性
係数が変化し、その結果、SMAからなる感温ばね13
0のばね定数が温度に応じて変化する。上記湯水混合装
置10に適用できる感温ばね130は、使用温度範囲
内、例えば、10〜70℃の範囲内にて、目標設定温度
との温度差に比例してばね荷重と歪とが比例する特性を
有している。Next, the temperature sensitive spring 130 will be described.
As the metal material of the temperature-sensitive spring 130, an alloy belonging to the category of shape memory alloy (SMA) made of NiTi alloy can be used. The elastic coefficient of this type of SMA changes depending on the temperature, and as a result, the temperature sensitive spring 13 made of SMA is used.
The spring constant of 0 changes with temperature. The temperature-sensitive spring 130 applicable to the hot water mixing apparatus 10 has a spring load and a strain proportional to a temperature difference from a target set temperature in a use temperature range, for example, in a range of 10 to 70 ° C. It has characteristics.
【0026】こうした感温ばね130は、バイアスばね
150により予荷重を与えられた歪状態で伸縮され、可
動弁体160を所定範囲のストロークで摺動させる。図
3は感温ばね130の荷重と歪との関係を示し、実線が
感温ばね130の各温度に対する歪特性、一点鎖線が本
実施例に係るバイアスばね150による荷重特性、破線
が従来のバイアスばねによる荷重特性である。図3から
明かなように、従来では、ばね定数の小さいバイアスば
ねを用いて感温ばね130を歪の小さい範囲で可動させ
て、大きなストロークSTAを確保しているが、本実施
例では、ばね定数の大きなバイアスばね150を用いて
感温ばね130を常時歪状態にて短いストロークSTに
て伸縮させる。すなわち、感温ばね130の歪rは、次
式(1)で与えられるが、その範囲を0.6%から1.
4%の範囲で利用して、可動弁体160の駆動を安定化
させると共に、感温ばね130のヒステリシスに伴う劣
化を防止している。 r=(d・ST/πnD)・100(%) …(1) d:感温ばね130の線径 ST:ストローク(たわみ量) n:コイル巻数 D:感温ばね130の中心径The temperature-sensitive spring 130 is expanded and contracted in a strained state preloaded by the bias spring 150 to slide the movable valve body 160 within a predetermined range of stroke. FIG. 3 shows the relationship between the load and the strain of the temperature-sensitive spring 130. The solid line indicates the strain characteristic of the temperature-sensitive spring 130 with respect to each temperature, the alternate long and short dash line indicates the load characteristic of the bias spring 150 according to this embodiment, and the broken line indicates the conventional bias. This is the load characteristic of the spring. As is apparent from FIG. 3, in the related art, a large stroke STA is secured by moving the temperature sensitive spring 130 within a range where the strain is small using a bias spring having a small spring constant. Using the bias spring 150 having a large constant, the temperature-sensitive spring 130 is constantly expanded and contracted in a short stroke ST in a strained state. That is, the strain r of the temperature-sensitive spring 130 is given by the following equation (1), and its range is from 0.6% to 1.
It is used within the range of 4% to stabilize the driving of the movable valve body 160 and prevent the temperature sensitive spring 130 from being deteriorated due to the hysteresis. r = (d · ST / πnD) · 100 (%) (1) d: Wire diameter of temperature-sensitive spring 130 ST: Stroke (deflection amount) n: Number of coil turns D: Center diameter of temperature-sensitive spring 130
【0027】上記可動弁体160と感温ばね130との
間には、スペーサ190が介在している。このスペーサ
190は、高温水と低温水とを十分に混合させてから感
温ばね130に接触させるための作用を果たすものであ
り、図2に示すように感温ばね130の右支持端部13
4を受けるばね受け部192と、このばね受け部192
から複数本平行に突設された脚部194とを備え、脚部
194間が水側ポート106からの水を流通させる脚間
流路196に、ばね受け部192の中央部が貫通流路1
98にそれぞれ形成されている。また、図1に示す感温
ばね130の左支持端部132は、ばね受け部材180
を介して水側弁座部材70のフランジ部74に支持され
ている。A spacer 190 is interposed between the movable valve body 160 and the temperature sensitive spring 130. The spacer 190 functions to sufficiently mix the high temperature water and the low temperature water and then to contact the temperature sensitive spring 130, and as shown in FIG. 2, the right support end portion 13 of the temperature sensitive spring 130.
4 and the spring receiving portion 192
From the water side port 106 between the leg portions 194, and the central portion of the spring receiving portion 192 has the through passage 1
98, respectively. The left support end portion 132 of the temperature sensitive spring 130 shown in FIG.
Is supported by the flange portion 74 of the water side valve seat member 70 via.
【0028】次に、予荷重調節機構200について説明
する。図1に示すように、予荷重調節機構200は、バ
イアスばね150の右支持端部154を支持するばね受
け部材210と、ばね受け部材210を軸方向へ移動す
るためのスライド機構250とを備えている。スライド
機構250は、操作ハンドル40の取付凹所42にラッ
チ機構やクリック機構を介して固定されかつ他端外周部
に雄ネジ部262を設けたライナ260と、を備えてい
る。ばね受け部材210は、本体部212と、本体部2
12と一体形成されかつ上記雄ネジ部262に螺合する
雌ネジ部217を有する外周支持部214とを備え、本
体部212と外周支持部214との間にバイアスばね1
50を支持するばね受け部216を設け、さらに、外周
支持部214の外周部とケーシング本体50との間でス
プライン218を形成している。Next, the preload adjusting mechanism 200 will be described. As shown in FIG. 1, the preload adjusting mechanism 200 includes a spring bearing member 210 that supports the right supporting end portion 154 of the bias spring 150, and a slide mechanism 250 that moves the spring bearing member 210 in the axial direction. ing. The slide mechanism 250 includes a liner 260 fixed to the mounting recess 42 of the operation handle 40 via a latch mechanism or a click mechanism and having a male screw portion 262 on the outer peripheral portion of the other end. The spring receiving member 210 includes a body portion 212 and a body portion 2
12 and an outer peripheral support part 214 having a female screw part 217 that is integrally formed with the male screw part 262 and is screwed to the male screw part 262, and the bias spring 1 is provided between the main body part 212 and the outer peripheral support part 214.
A spring receiving portion 216 for supporting the 50 is provided, and a spline 218 is formed between the outer peripheral portion of the outer peripheral supporting portion 214 and the casing body 50.
【0029】こうした予荷重調節機構200の構成によ
り、混合湯水の目標温度を変更するには、操作ハンドル
40の外周部に設けた設置温度表示を指標として、操作
ハンドル40を所定方向へ回転する。この操作ハンドル
40の回転により、ライナ260が操作ハンドル40と
一体になって回転する。これにより、ライナ260の外
周部の雄ネジ部262がばね受け部材210の雌ネジ部
217と螺合しているから、ばね受け部材210には回
転駆動力が伝達されるが、ばね受け部材210は、スプ
ライン218により回転が規制されているので、軸方向
へ移動する。ばね受け部材210の軸方向への移動によ
り、そのばね受け部216がバイアスばね150を変位
させる。バイアスばね150の変位により、可動弁体1
60を移動させ、感温ばね130との釣合位置まで感温
ばね130が変位して、目標温度が変更される。With the configuration of the preload adjusting mechanism 200 as described above, in order to change the target temperature of the mixed hot water, the operating handle 40 is rotated in a predetermined direction by using the installation temperature display provided on the outer peripheral portion of the operating handle 40 as an index. The rotation of the operation handle 40 causes the liner 260 to rotate integrally with the operation handle 40. As a result, since the male screw portion 262 on the outer peripheral portion of the liner 260 is screwed into the female screw portion 217 of the spring receiving member 210, the rotational driving force is transmitted to the spring receiving member 210, but the spring receiving member 210. Since its rotation is restricted by the spline 218, it moves in the axial direction. By the axial movement of the spring bearing member 210, the spring bearing portion 216 displaces the bias spring 150. Due to the displacement of the bias spring 150, the movable valve body 1
By moving 60, the temperature-sensitive spring 130 is displaced to a position where the temperature-sensitive spring 130 is balanced, and the target temperature is changed.
【0030】上記湯水混合装置10において、湯流路1
14からの高温水は、湯側ポート116を通って湯流入
室90に流入する。このとき、可動弁体160のガイド
面174は、その流路面積を徐々に増大するように湾曲
して形成され、湯側ポート116から流路部172へ流
入する高温水をスムーズに導入するから、高温水は、急
激な流路面積の増大を伴うこともなく、その内に気泡な
どが発生したり、乱流とならないで流路部172内に流
入する。したがって、高温水が湯側ポート116から湯
流入室90に流入する際に不快感をもたらすような異音
が生じない。In the hot and cold water mixing apparatus 10, the hot water flow path 1
The hot water from 14 flows into the hot water inflow chamber 90 through the hot water port 116. At this time, the guide surface 174 of the movable valve body 160 is formed so as to be curved so as to gradually increase the flow passage area, and the high temperature water flowing into the flow passage portion 172 from the hot water port 116 is smoothly introduced. The high-temperature water flows into the flow passage portion 172 without causing a rapid increase in the flow passage area, without causing bubbles or the like therein or becoming a turbulent flow. Therefore, no abnormal noise that causes discomfort when hot water flows into the hot water inflow chamber 90 from the hot water port 116 is generated.
【0031】図4は他の実施例に係る湯水混合装置10
Bを示す断面図であり、バイアスばね150間への高温
水の流入を避けて、異音の発生を防止した実施例であ
る。図4に示すように、ばね受け部材210Bは、バイ
アスばね150の左端を受ける左バイアスばね受け部材
212Bと、バイアスばね150の右端を受ける右バイ
アスばね受け部材214Bとから構成されている。左バ
イアスばね受け部材212Bは、左ばね受け本体部21
2Baと、左ばね受け本体部212Baの外周から突出
した傘状部212Bbと、左ばね受け本体部212Ba
から突設し上記可動弁体160Bに当接するフィン21
2Bcを備え、左ばね受け本体部212Baの内側と傘
状部212Bbとの内側とでバイアスばね150の左端
を支持している。一方、右バイアスばね受け部材214
Bは、図1のばね受け部材210とほぼ同様な構成を備
えている。なお、上記傘状部212Bは、その一部が切
欠きされており、スライド室96側へ高温水が入り込む
ようになっている。FIG. 4 shows a hot and cold water mixing apparatus 10 according to another embodiment.
FIG. 9B is a cross-sectional view showing B, which is an embodiment in which high temperature water is prevented from flowing into between the bias springs 150 to prevent generation of abnormal noise. As shown in FIG. 4, the spring bearing member 210B includes a left bias spring bearing member 212B that receives the left end of the bias spring 150 and a right bias spring bearing member 214B that receives the right end of the bias spring 150. The left bias spring receiving member 212B includes the left spring receiving main body portion 21.
2Ba, an umbrella-shaped portion 212Bb protruding from the outer periphery of the left spring receiving main body portion 212Ba, and a left spring receiving main body portion 212Ba.
Fins 21 projecting from and abutting the movable valve body 160B
2Bc is provided, and the left end of the bias spring 150 is supported by the inside of the left spring receiving main body portion 212Ba and the inside of the umbrella-shaped portion 212Bb. On the other hand, the right bias spring receiving member 214
B has a structure similar to that of the spring bearing member 210 of FIG. Note that the umbrella-shaped portion 212B is partially notched so that high-temperature water can enter the slide chamber 96 side.
【0032】予荷重調節機構200Bの動作によりライ
ナ260を移動させると、バイアスばね150を介して
左バイアスばね受け部材212Bが進退する。これによ
り、可動弁体160Bは、環状係止部168Bがばね受
け部材210Bのフィン212Bcで押されて摺動する
ことになる。When the liner 260 is moved by the operation of the preload adjusting mechanism 200B, the left bias spring receiving member 212B moves back and forth via the bias spring 150. As a result, the movable valve body 160B slides because the annular locking portion 168B is pushed by the fins 212Bc of the spring receiving member 210B.
【0033】また、左バイアスばね受け部材212B
は、傘状部212Bbを有しているから、傘状部212
Bbと可動弁体160Bのガイド面174Bとの間でガ
イド流路175Bを構成し、該ガイド流路175Bを介
して湯側ポート116からの高温水を流路部172Bへ
導く。したがって、高温水は、バイアスばね150の巻
線間を通らないから、巻線の狭い部分を通ったことに起
因する流路面積の急激な増加に伴う異音が発生しない。Further, the left bias spring receiving member 212B
Has an umbrella-shaped portion 212Bb, the umbrella-shaped portion 212
A guide passage 175B is formed between Bb and the guide surface 174B of the movable valve body 160B, and the high temperature water from the hot water side port 116 is guided to the passage portion 172B through the guide passage 175B. Therefore, since the high temperature water does not pass between the windings of the bias spring 150, no abnormal noise is generated due to the rapid increase in the flow path area due to the narrow portion of the windings.
【0034】図5は他の実施例に係る湯水混合装置10
Cを示す断面図である。図5に示すように、可動弁体1
60Cの係止支持部160Caには、中央基部160C
b及びこの中央基部160Cbを囲むように係止流路孔
160Ccが周方向へ等間隔に3つ形成されている。ま
た、バイアスばね150の左支持端部152は、左ばね
受け部材210Cにより支持されている。左ばね受け部
材210Cは、傘状部210Caと、傘状部210Ca
の先端に設けられかつ上記可動弁体160Cの中央基部
160Cbを押圧する先端支持突起210Cbと、ケー
シング本体50の内周面を摺動する円筒部210Cc
と、円筒部210Ccの内周側に形成されたばね受け環
状凹所210Cdとを備えている。また、可動弁体16
0Cの傘状部210Caは、可動弁体160Cのガイド
面174Cとの間で湯側ポート116に連通するガイド
流路175Cを構成している。つまりガイド流路175
Cは、バイアスばね150との間には傘状部210Ca
が介在し、湯側ポート116からの高温水はバイアスば
ね150の巻線間に達しないように設けられている。FIG. 5 shows a hot and cold water mixing apparatus 10 according to another embodiment.
It is sectional drawing which shows C. As shown in FIG. 5, the movable valve body 1
The locking support portion 160Ca of the 60C has a central base portion 160C.
Three locking channel holes 160Cc are formed at equal intervals in the circumferential direction so as to surround b and the central base 160Cb. The left support end portion 152 of the bias spring 150 is supported by the left spring receiving member 210C. The left spring receiving member 210C includes an umbrella-shaped portion 210Ca and an umbrella-shaped portion 210Ca.
And a cylindrical portion 210Cc which slides on the inner peripheral surface of the casing main body 50, and a distal end supporting protrusion 210Cb provided at the distal end of the movable valve body 160C for pressing the central base portion 160Cb.
And a spring receiving annular recess 210Cd formed on the inner peripheral side of the cylindrical portion 210Cc. In addition, the movable valve body 16
The umbrella-shaped portion 210Ca of 0C constitutes a guide channel 175C communicating with the hot water port 116 between the guide surface 174C of the movable valve body 160C. That is, the guide channel 175
C is an umbrella-like portion 210Ca between the bias spring 150 and
Is provided so that the high temperature water from the hot water side port 116 does not reach between the windings of the bias spring 150.
【0035】上記実施例に係る湯水混合装置10Cで
は、バイアスばね150が左ばね受け部材210Cの傘
状部210Caを介して湯側ポート116に対して隔て
られているから、湯側ポート116から流入する高温水
は、バイアスばね150の巻線間を通ることがない。し
たがって、巻線の狭い部分を通った際に、流路面積の急
激な増加に伴う異音が発生しない。In the hot and cold water mixing apparatus 10C according to the above embodiment, the bias spring 150 is separated from the hot water port 116 via the umbrella-shaped portion 210Ca of the left spring receiving member 210C, so that the hot spring water flows in from the hot water port 116. The high-temperature water that flows does not pass between the windings of the bias spring 150. Therefore, when passing through the narrow portion of the winding, no abnormal noise is generated due to the rapid increase of the flow passage area.
【0036】また、左ばね受け部材210Cは、その傘
状部210Caの先端に先端支持突起210Cbを備
え、該先端支持突起210Cbにより可動弁体160C
の中央基部160Cbを押しているので、可動弁体16
0Cは、バイアスばね150から偏心した力を加えられ
ることもなく、傾いて摺動することもないという効果も
奏する。The left spring receiving member 210C is provided with a tip supporting protrusion 210Cb at the tip of the umbrella-shaped portion 210Ca, and the movable valve body 160C is provided by the tip supporting protrusion 210Cb.
Since the central base portion 160Cb of the movable valve body 16 is pushed,
0C also exerts an effect that an eccentric force is not applied from the bias spring 150, and the bias spring 150 does not tilt and slide.
【0037】なお、この発明は上記実施例に限られるも
のではなく、その要旨を逸脱しない範囲において種々の
態様において実施することが可能であり、例えば次のよ
うな変形も可能である。The present invention is not limited to the above-described embodiments, but can be carried out in various modes without departing from the scope of the invention, and the following modifications can be made.
【0038】(1) 上記実施例では、バイアスばね受
け部材にガイド通路形成部材としての傘状部を形成し、
バイアスばねの巻線間に高温水が流入しないように構成
したが、ガイド通路形成部材の位置としては、これに限
らず、ケーシング本体側に形成しもよく、その位置は特
に限定されない。(1) In the above embodiment, the bias spring receiving member is provided with the umbrella-shaped portion as the guide passage forming member,
Although the high temperature water is configured not to flow between the windings of the bias spring, the position of the guide passage forming member is not limited to this and may be formed on the casing body side, and the position is not particularly limited.
【0039】(2) 上記実施例におけるガイド通路形
成部材は、湯側ポートから流出する高温水を迂回させて
バイアスばねの巻線間に流れ込まないように構成した
が、コイル巻線間から発生する異音を防止するのであれ
ば、感温ばねに対応した位置に水側ポートを設けた構成
の場合には、その水側ポートに対応した位置に低温水を
迂回させる構成であってもよい。(2) Although the guide passage forming member in the above embodiment is constructed so as to bypass the high temperature water flowing out from the hot water side port so as not to flow between the windings of the bias spring, it is generated between the coil windings. In order to prevent abnormal noise, when the water side port is provided at a position corresponding to the temperature sensitive spring, the low temperature water may be diverted to a position corresponding to the water side port.
【0040】(3) 上記実施例では、可動弁体に対し
て湯側ポートを上流側に、水側ポートを下流側に配置し
たが、その動作に支障がないかぎり、その配置が逆であ
ってもよく、これに対応した位置であってかつコイル巻
線間に高温水または低温水が入り込まないようにガイド
通路形成部材を設けてもよい。(3) In the above embodiment, the hot water port is arranged upstream and the water port is arranged downstream of the movable valve body. However, the arrangement is reversed as long as the operation is not hindered. Alternatively, a guide passage forming member may be provided at a position corresponding to this so that high temperature water or low temperature water does not enter between the coil windings.
【0041】(4) 感温ばねを混合湯水の主たる流路
中に配置する必要はなく、例えば、温度センサとして利
用し、これを電磁ソレノイド等により可動弁体を駆動す
るように構成してもよい。この場合には、感温ばねが混
合湯水の水圧変化を直接受けないので、外乱に対して安
定した作動を行わせることができ、しかも、感温ばね自
体の量も少なくてすみ、安価なものを使用することがで
きる。(4) It is not necessary to dispose the temperature sensitive spring in the main flow path of the mixed hot water, and for example, it may be used as a temperature sensor, and the movable valve may be driven by an electromagnetic solenoid or the like. Good. In this case, since the temperature-sensitive spring is not directly affected by the change in water pressure of the mixed hot water, stable operation can be performed against disturbance, and the amount of the temperature-sensitive spring itself is small, which is inexpensive. Can be used.
【0042】[0042]
【発明の効果】以上説明したように本発明に係る請求項
1の湯水混合装置によれば、可動弁体を感温ばねとバイ
アスばねとの釣り合いにより、湯側ポートと水側ポート
との流路面積を変えるように摺動させることにより、高
温水と低温水との混合比を変更して目標温度で吐水する
と共に、湯側ポートまたは水側ポートから可動弁体内の
弁体内流路へ高温水または低温水を導くガイド流路形成
部材を設けることにより、感温ばねまたはバイアスばね
の巻線間に高温水または低温水が流れないから、巻線間
を通る際に発生する不快感をもたらす異音が発生しな
い。As described above, according to the hot and cold water mixing apparatus of the first aspect of the present invention, the flow between the hot water side port and the hot water side port is achieved by balancing the movable valve element with the temperature sensitive spring and the bias spring. By sliding so as to change the passage area, the mixing ratio of high-temperature water and low-temperature water is changed to discharge water at the target temperature, and at the same time, the hot water flows from the hot water port or water side port to the valve body flow passage in the movable valve body. By providing the guide flow path forming member for guiding water or low temperature water, high temperature water or low temperature water does not flow between the windings of the temperature sensitive spring or the bias spring, which causes discomfort when passing between the windings. No abnormal noise is generated.
【0043】請求項2によれば、バイアスばねを受ける
ためのバイアスばね受け部材を設けると共に、そのバイ
アスばね受け部材に請求項1のガイド流路形成部材を設
けることにより、ガイド流路形成部材をコンパクトに構
成することができる。According to a second aspect of the present invention, a bias spring receiving member for receiving the bias spring is provided, and the guide passage forming member according to the first aspect is provided on the bias spring receiving member. It can be made compact.
【0044】請求項3によれば、可動弁体にガイド面を
形成することにより、該ガイド面が湯側ポートまたは水
側ポートの流路面積を徐々に大きくするように弁体内流
路に高温水または低温水を導くので、流路面積の急激な
変化がなく、これに伴う不快感をもたらす異音が発生し
ない。According to the third aspect of the present invention, by forming the guide surface on the movable valve body, a high temperature is formed in the valve body flow passage so that the guide surface gradually increases the flow passage area of the hot water port or the water side port. Since water or low-temperature water is introduced, there is no abrupt change in the flow path area, and no abnormal noise accompanying this is generated.
【0045】また、請求項4の発明によれば、湯水混合
装置として、感温ばねのばね定数の変化を電磁ソレノイ
ドやモータ等で構成した駆動手段により可動弁体の移動
力として変換することで、可動弁体を摺動させる構成を
好適に実現することができる。Further, according to the invention of claim 4, as the hot and cold water mixing device, the change of the spring constant of the temperature sensitive spring is converted into the moving force of the movable valve body by the driving means constituted by the electromagnetic solenoid or the motor. Therefore, it is possible to preferably realize the configuration in which the movable valve body is slid.
【図1】本発明の一実施例に係る湯水混合装置を示す断
面図。FIG. 1 is a sectional view showing a hot and cold water mixing apparatus according to an embodiment of the present invention.
【図2】同実施例の可動弁体及びその周辺部を示す断面
図。FIG. 2 is a cross-sectional view showing the movable valve body and its peripheral portion of the embodiment.
【図3】感温ばねの歪に対する荷重特性を示すグラフ。FIG. 3 is a graph showing load characteristics with respect to strain of a temperature sensitive spring.
【図4】他の実施例に係る湯水混合装置を示す断面図。FIG. 4 is a cross-sectional view showing a hot and cold water mixing device according to another embodiment.
【図5】さらに他の実施例に係る湯水混合装置を示す断
面図。FIG. 5 is a sectional view showing a hot and cold water mixing apparatus according to still another embodiment.
10…湯水混合装置 10C…湯水混合装置 20…外側ケーシング 30…内側ケーシング 40…操作ハンドル 42…取付凹所 50…ケーシング本体 70…水側弁座部材 74…フランジ部 80…湯水混合室 90…湯流入室 96…スライド室 102…水導入流路 106…水側ポート 108…水側弁座 114…湯流路 116…湯側ポート 118…湯側弁座 130…感温ばね 132…左支持端部 134…右支持端部 150…バイアスばね 152…左支持端部 154…右支持端部 160…可動弁体 160B…可動弁体 160C…可動弁体 160Ca…係止支持部 160Cb…中央基部 160Cc…係止流路孔 162…筒状部 164,166…着座部 164…水側着座部 166…湯側着座部 168…環状係止部 168B…環状係止部 172…流路部 172B…流路部 174…ガイド面 174B…ガイド面 174C…ガイド面 175B…ガイド流路 175C…ガイド流路 180…ばね受け部材 190…スペーサ 192…ばね受け部 194…脚部 196…脚間流路 198…貫通流路 200…予荷重調節機構 200B…予荷重調節機構 210…ばね受け部材 210B…ばね受け部材 210C…左ばね受け部材 210Ca…傘状部 210Cb…先端支持突起 210Cc…円筒部 210Cd…ばね受け環状凹所 212…本体部 212B…左バイアスばね受け部材 212Ba…左ばね受け本体部 212Bb…傘状部 214…外周支持部 214B…右バイアスばね受け部材 216…ばね受け部 217…雌ネジ部 218…スプライン 250…スライド機構 260…ライナ 262…雄ネジ部 10 ... Hot and cold water mixing device 10C ... Hot and cold water mixing device 20 ... Outer casing 30 ... Inner casing 40 ... Operating handle 42 ... Mounting recess 50 ... Casing body 70 ... Water side valve seat member 74 ... Flange portion 80 ... Hot water mixing chamber 90 ... Hot water Inflow chamber 96 ... Slide chamber 102 ... Water introduction flow path 106 ... Water side port 108 ... Water side valve seat 114 ... Hot water flow path 116 ... Hot water side port 118 ... Hot water side valve seat 130 ... Temperature sensitive spring 132 ... Left support end 134 ... Right support end 150 ... Bias spring 152 ... Left support end 154 ... Right support end 160 ... Movable valve disc 160B ... Movable valve disc 160C ... Movable valve disc 160Ca ... Locking support 160Cb ... Central base 160Cc ... Engagement Stop channel hole 162 ... Cylindrical part 164, 166 ... Seating part 164 ... Water side seating part 166 ... Water side seating part 168 ... Annular locking part 168B ... Annular locking 172 ... Flow path part 172B ... Flow path part 174 ... Guide surface 174B ... Guide surface 174C ... Guide surface 175B ... Guide flow path 175C ... Guide flow path 180 ... Spring receiving member 190 ... Spacer 192 ... Spring receiving part 194 ... Leg part 196 ... Inter-leg flow path 198 ... Through flow path 200 ... Preload adjusting mechanism 200B ... Preload adjusting mechanism 210 ... Spring receiving member 210B ... Spring receiving member 210C ... Left spring receiving member 210Ca ... Umbrella part 210Cb ... Tip support protrusion 210Cc ... Cylindrical portion 210Cd ... Spring receiving annular recess 212 ... Main body portion 212B ... Left bias spring receiving member 212Ba ... Left spring receiving main body portion 212Bb ... Umbrella portion 214 ... Outer peripheral support portion 214B ... Right bias spring receiving member 216 ... Spring receiving portion 217 ... Female thread 218 ... Spline 250 ... Slide mechanism 260 ... La Inner 262 ... Male thread
Claims (4)
度の混合湯水を吐水する湯水混合装置において、 高温水を吐出する湯側ポートと低温水を吐出する水側ポ
ートを有すると共に上記両ポートに連通する摺動孔を有
するケーシング本体と、 上記摺動孔に摺動自在に嵌合し、上記湯側ポートから吐
出される高温水と水側ポートから吐出される低温水との
混合比を調節すると共にその内側に上記高温水または低
温水を通す弁体内流路を有する可動弁体と、 所定の温度範囲において温度に応じてばね定数が変化す
る材料からなり、混合湯水の温度上昇に伴い湯の割合を
減少させる方向へ上記可動弁体を付勢する感温ばねと、 上記可動弁体を上記方向とは反対方向に付勢するバイア
スばねと、 上記湯側ポートまたは水側ポートの少なくとも一方に、
高温水または低温水をバイアスばねまたは感温ばねを迂
回させて可動弁体の弁体内流路に導くガイド流路を形成
するガイド流路形成部材と、 を備えたことを特徴とする湯水混合装置。1. A hot and cold water mixing apparatus for mixing hot water and low temperature water to discharge hot and cold water having a target set temperature, and having a hot water side port for discharging high temperature water and a water side port for discharging low temperature water. A casing body having a sliding hole communicating with both ports, and a mixture of high temperature water discharged from the hot water port and low temperature water discharged from the water side port slidably fitted in the sliding hole. It consists of a movable valve body that adjusts the ratio and has a valve body flow passage inside which allows the high temperature water or the low temperature water to pass through, and a material whose spring constant changes according to the temperature within a predetermined temperature range. A temperature-sensitive spring that urges the movable valve element in a direction that reduces the proportion of hot water, a bias spring that urges the movable valve element in a direction opposite to the direction, and the hot water port or the water side port. To at least one of
A hot and cold water mixing device comprising: a guide flow path forming member that forms a guide flow path that guides high temperature water or low temperature water to a valve body flow path of a movable valve body by bypassing a bias spring or a temperature sensitive spring. .
受け部材を備え、該バイアスばね受け部材に上記ガイド
流路形成部材を設けた請求項1に記載の湯水混合装置。2. The hot and cold water mixing apparatus according to claim 1, further comprising a bias spring receiving member for receiving the bias spring, wherein the guide flow path forming member is provided on the bias spring receiving member.
度の混合湯水を吐水する湯水混合装置において、 高温水を吐出する湯側ポートと低温水を吐出する水側ポ
ートを有すると共に上記両ポートに連通する摺動孔を有
するケーシング本体と、 上記摺動孔に摺動自在に嵌合し、上記湯側ポートから吐
出される高温水と水側ポートから吐出される低温水との
混合比を調節すると共にその内側に上記高温水または低
温水を通す弁体内流路を有する可動弁体と、 所定の温度範囲において温度に応じてばね定数が変化す
る材料からなり、混合湯水の温度上昇に伴い湯の割合を
減少させる方向へ上記可動弁体を付勢する感温ばねと、 上記可動弁体を上記方向とは反対方向に付勢するバイア
スばねと、 を備え、 上記可動弁体は、その外周から内周にかけて、湯側ポー
トまたは水側ポートの流路面積を徐々に広くして上記高
温水または低温水を上記弁体内流路に導くガイド面を有
することを特徴とする湯水混合装置。3. A hot and cold water mixing apparatus which mixes high temperature water and low temperature water and discharges mixed hot and cold water having a target set temperature, having a hot water side port for discharging high temperature water and a water side port for discharging low temperature water. A casing body having a sliding hole communicating with both ports, and a mixture of high temperature water discharged from the hot water port and low temperature water discharged from the water side port slidably fitted in the sliding hole. It consists of a movable valve body that adjusts the ratio and has a valve body flow passage inside which allows the high temperature water or the low temperature water to pass through, and a material whose spring constant changes according to the temperature within a predetermined temperature range. And a bias spring for urging the movable valve body in a direction opposite to the direction, the temperature sensitive spring urging the movable valve body in a direction to reduce the proportion of hot water. , From the outer circumference to the inner circumference A hot and cold water mixing device having a guide surface for gradually increasing the flow passage area of the hot water port or the water side port to guide the high-temperature water or the low-temperature water to the valve body flow passage.
側ポートまたは水側ポートに連通した混合室と、 上記両ポートから吐出される高温水及び/または低温水
の流入量を制御し、高温水と低温水との混合比を調節す
ると共にその内側に上記高温水または低温水を通す弁体
内流路を有する可動弁体と、 上記混合室で混合された高温水と低温水との混合湯水に
晒され、該混合湯水の温度に応じてばね定数が変化する
感温ばねと、 該感温ばねの付勢力に比例して上記可動弁体を駆動する
駆動手段と、 該駆動手段の駆動方向と反対方向へ可動弁体を押圧する
バイアスばねと、 上記湯側ポートまたは水側ポートの少なくとも一方に、
高温水または低温水をバイアスばねを迂回させて可動弁
体の弁体内流路に導くガイド流路を形成するガイド流路
形成部材と、 を備える湯水混合装置。4. A high temperature water and / or a low temperature water discharged from both ports and a mixing chamber communicating with the hot water side port or the water side port respectively discharging high temperature water and low temperature water are controlled to control the high temperature A movable valve body having a valve body flow passage inside which adjusts the mixing ratio of water and low temperature water and allows the high temperature water or the low temperature water to pass therethrough, and a mixed hot water of high temperature water and low temperature water mixed in the mixing chamber Temperature sensitive spring whose spring constant changes according to the temperature of the mixed hot water, drive means for driving the movable valve body in proportion to the biasing force of the temperature sensitive spring, and the drive direction of the drive means. A bias spring that presses the movable valve element in the opposite direction to at least one of the hot water port or the water side port,
A hot and cold water mixing apparatus comprising: a guide flow path forming member that forms a guide flow path that guides high temperature water or low temperature water to a valve body flow path of a movable valve body by bypassing a bias spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19590194A JPH0842744A (en) | 1994-07-27 | 1994-07-27 | Hot water and water mixing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19590194A JPH0842744A (en) | 1994-07-27 | 1994-07-27 | Hot water and water mixing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0842744A true JPH0842744A (en) | 1996-02-16 |
Family
ID=16348878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19590194A Pending JPH0842744A (en) | 1994-07-27 | 1994-07-27 | Hot water and water mixing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0842744A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000002360A (en) * | 1998-06-17 | 2000-01-07 | Inax Corp | Mixing valve for water combination faucet |
JP2000028031A (en) * | 1998-07-10 | 2000-01-25 | Inax Corp | Combination water valve |
WO2001020210A1 (en) * | 1999-09-10 | 2001-03-22 | Inax Corporation | Hot and cold water mixing device |
-
1994
- 1994-07-27 JP JP19590194A patent/JPH0842744A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000002360A (en) * | 1998-06-17 | 2000-01-07 | Inax Corp | Mixing valve for water combination faucet |
JP2000028031A (en) * | 1998-07-10 | 2000-01-25 | Inax Corp | Combination water valve |
WO2001020210A1 (en) * | 1999-09-10 | 2001-03-22 | Inax Corporation | Hot and cold water mixing device |
US6318638B1 (en) | 1999-09-10 | 2001-11-20 | Inax Corporation | Hot and cold water mixing device |
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