JP5849497B2 - Shower equipment - Google Patents
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- JP5849497B2 JP5849497B2 JP2011166574A JP2011166574A JP5849497B2 JP 5849497 B2 JP5849497 B2 JP 5849497B2 JP 2011166574 A JP2011166574 A JP 2011166574A JP 2011166574 A JP2011166574 A JP 2011166574A JP 5849497 B2 JP5849497 B2 JP 5849497B2
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Description
本発明は、シャワー装置に係り、特に、シャワー初期に冷水が散水されることによる不快感を軽減させるシャワー装置に関する発明である。 The present invention relates to a shower apparatus, and in particular, relates to a shower apparatus that reduces discomfort caused by cold water being sprinkled in the initial shower.
図１に従来の一般的なシャワー装置を示す。給水本管１、給湯本管２から供給された湯水は混合バルブ３、開閉流調バルブ４、通水本管５を経て、シャワーヘッド６から散水される。シャワー使用中は混合バルブ３において適温に調整されるため、通水本管５内は適温となっている。しかしながら、シャワー使用終了後、時間が経つと、通水本管５内の温度が下がり、次回シャワー使用時には初期に冷水が散水されることになり不快である。特に図１に示すような壁面等に固定されるシャワーヘッド６の場合は、手に持つことができる所謂ハンドシャワーの場合の様に容易にシャワーの散水方向を身体に当たらないような方向に向けることができないため、尚更不快感が大きい。 FIG. 1 shows a conventional general shower apparatus. Hot water supplied from the water supply main 1 and hot water supply main 2 is sprinkled from the shower head 6 through the mixing valve 3, the on-off flow control valve 4, and the water flow main 5. Since the mixing valve 3 is adjusted to an appropriate temperature during shower use, the inside of the water main pipe 5 is at an appropriate temperature. However, as time passes after the use of the shower is over, the temperature in the water main pipe 5 is lowered, and cold water is sprinkled at the beginning of the next shower use, which is uncomfortable. In particular, in the case of the shower head 6 fixed to the wall surface or the like as shown in FIG. The discomfort is even greater because it is not possible.
これに対し、特許文献１では、湯水吐出の初期時に冷水が身体にかからないシャワー吐出装置を提供するために、湯と水を混合調節する温度調節弁と、混合した温度を検出する温度検出部と、温度調節弁を駆動する温度調節用モ−タと、人の身体に温度調節弁から送出された湯水を吐出する吐出部と、吐出部経路に設けた主経路開閉弁と排水用開閉弁とを設け、動作開始直後に前記排水用開閉弁を先に開く構成としてある。これによって吐出初期時に冷水が身にかかることがなくなる。 On the other hand, in Patent Document 1, in order to provide a shower discharge device in which cold water is not applied to the body at the initial stage of hot water discharge, a temperature control valve for mixing and adjusting hot water and water, and a temperature detection unit for detecting the mixed temperature, A temperature control motor for driving the temperature control valve, a discharge section for discharging hot water sent from the temperature control valve to a human body, a main path on-off valve and a drain on-off valve provided in the discharge section path And the drain on-off valve is opened first immediately after the start of operation. This prevents cold water from being worn at the beginning of discharge.
しかしながら、この場合、温度検出部や温度調節用モ−タ等、高価な装置を必要とする。特許文献２では、かびや雑菌等の繁殖を防止して衛生的な浄水を得ると共に、滞留水の凍結を防止する目的で、浄水シャワーシステムの水抜き機構部を浄水器本体の入水接続部と、給水ホースとの間に設置した。ハウジングには給水ホース及び浄水器本体を介して源水や浄水シャワーシステム内の滞留水が流入する。ハウジングの下面には流入した水を排出するための水抜き孔を設けた。ハウジング内部で水抜き孔の近傍には断面円形の開口部を形成し、ばねで連結されて鉛直方向に上下動可能な球体状のボールからなる封止部材を装入した。封止部材は、源水供給時に開口部を塞いで水抜き孔からハウジング内の水が流出することを防ぎ、源水供給時以外には、ばねの弾性力により開口部から離れて滞留水を排出する。この水抜き機構部は、簡易的で安価な構造であり、シャワー初期の冷水排出にも供する。しかしながら排水弁が主通水路の途中に設置されているために、排水弁から給湯源までの通水路の湯が冷えた場合には、シャワー初期の冷水をシャワーから散水させてしまう。 However, in this case, expensive devices such as a temperature detection unit and a temperature adjustment motor are required. In Patent Document 2, in order to prevent the growth of fungi and bacteria and obtain sanitary purified water, and to prevent freezing of stagnant water, the drainage mechanism of the water purification shower system is connected to the water inlet connection of the water purifier body. , Installed between the water supply hose. Source water and accumulated water in the purified water shower system flow into the housing through the water supply hose and the water purifier main body. A drain hole for discharging the inflowing water was provided on the lower surface of the housing. An opening having a circular cross section was formed in the vicinity of the drain hole inside the housing, and a sealing member made of a spherical ball connected by a spring and vertically movable was inserted. The sealing member closes the opening when supplying the source water to prevent the water in the housing from flowing out of the drain hole. Discharge. This draining mechanism has a simple and inexpensive structure, and also serves to discharge cold water in the initial shower. However, since the drain valve is installed in the middle of the main water passage, when the hot water in the water passage from the drain valve to the hot water supply source is cooled, the cold water at the initial stage of the shower is sprinkled from the shower.
本発明は、上記問題を解決するためになされたもので、本発明の課題は、シャワーヘッドからの散水開始直後の冷水散水時間を簡易的な方法で短くし、快適性を向上させることである。 The present invention has been made to solve the above problems, and an object of the present invention is to shorten the cold water sprinkling time immediately after the start of sprinkling from the shower head by a simple method and improve comfort. .
上記目的を達成するために請求項１記載の発明によれば、シャワーヘッドと、前記シャワーヘッドからの吐水のオンオフを行う開閉流調バルブと、該開閉流調バルブと前記シャワーヘッドとの間を連結する通水本管と、該通水本管から分岐され、分岐部分より下方に伸びる排水路と、該排水路に配設され、前記シャワーヘッドからの吐水時には閉弁し、止水時には開弁する開閉弁と、を備え、前記排水路には、前記分岐部分よりも前記開閉流調バルブ側における前記通水本管に溜まる水を貯留する貯留空間を設け、前記排水路内の体積が、前記分岐部分から前記開閉流調バルブまでの間で最も高い位置から、前記開閉流調バルブまでの間に溜まる水の体積以上であることを特徴とするシャワー装置とした。 In order to achieve the above object, according to the first aspect of the present invention, there is provided a shower head, an on-off flow control valve for turning on / off water discharged from the shower head, and between the open / close flow control valve and the shower head. A water flow main to be connected, a drainage channel branched from the water flow main and extending downward from the branch portion, and disposed in the drainage channel, is closed when water is discharged from the shower head, and is opened when water is stopped. An opening / closing valve for providing a valve, and the drainage channel is provided with a storage space for storing water accumulated in the water main on the opening / closing flow control valve side of the branching portion , and the volume in the drainage channel is The shower device is characterized in that it is equal to or more than the volume of water accumulated between the branch portion and the open / close flow control valve to the open / close flow control valve .
貯留空間を設け、排水路内の体積が、分岐部分から開閉流調バルブまでの間で最も高い位置から、開閉流調バルブまでの間に溜まる水の体積以上であることにより、吐水初期の冷水を貯留空間に貯留することでシャワーヘッドからの冷水吐水を防ぐことができる。
また、温度応動弁等温度応答性の部品を使っていないため、冷水が必要なときでも、温水と同じ流路を共用することができ、非常に安価に構成することができる。
A storage space is provided , and the volume in the drainage channel is equal to or greater than the volume of water accumulated between the branch portion and the open / close flow control valve to the open / close flow control valve. Can be prevented from being discharged from the shower head.
Further, since temperature responsive parts such as a temperature responsive valve are not used, the same flow path as that of hot water can be shared even when cold water is required, and it can be configured at a very low cost.
また、請求項２記載の発明によれば、前記分岐部分より前記開閉流調バルブ側の前記通水本管は、前記分岐部分の上方から前記分岐部分に連通しており、前記分岐部分より前記シャワーヘッド側の前記通水本管は、前記分岐部分から水平方向若しくは水平方向より上方に向けて伸びていることを特徴とする。
これにより、分岐部分に対して上方から給水するため、初期吐水ではシャワーヘッド側でなく、まず排水路側に給水が行われ、確実に初期冷水を貯留空間に貯留することができるので、初期冷水吐水の防止をさらに効果的に行うことができる。
According to a second aspect of the present invention, the water main pipe closer to the open / close flow regulating valve than the branch portion communicates with the branch portion from above the branch portion, and The water main on the shower head side extends in the horizontal direction or upward from the horizontal direction from the branch portion.
Thus, since water is supplied to the branch portion from above, the initial water discharge is performed not on the shower head side but first on the drainage channel side, so that the initial cold water can be reliably stored in the storage space. Can be more effectively prevented.
また、請求項３記載の発明によれば、前記排水路は、前記分岐部分より前記開閉流調バルブ側の前記通水本管よりも径が太いことを特徴とする。
排水路に冷水を流し込むにあたり、排水路内の空気と流し込む水とを置換しなければならないので、効率よく空気を抜いて水を流し込む必要がある。その際、分岐部分の径を大きくしているので、置換が起こりやすく、冷水を貯留空間に貯留し易くなる。そのため、冷水がシャワーヘッドから吐水されることをより確実に防ぎ、初期冷水吐水の防止をさらに効果的に行うことができる。
According to a third aspect of the present invention, the drainage channel is characterized in that the diameter of the drainage channel is larger than that of the water main pipe closer to the open / close flow control valve than the branch portion.
When the cold water is poured into the drainage channel, the air in the drainage channel and the water to be poured must be replaced. Therefore, it is necessary to efficiently drain the air and flush the water. At that time, since the diameter of the branch portion is increased, the replacement is easy to occur, and the cold water is easily stored in the storage space. Therefore, it is possible to more reliably prevent cold water from being discharged from the shower head, and more effectively prevent initial cold water discharge.
本発明によれば、以下の効果がある。すなわち、吐水時の冷水を貯留空間に貯留することでシャワーヘッドからの冷水吐水を防ぐことができる。また、温度応動弁等温度応答性の部品を使っていないため、冷水が必要なときでも温水と同じ流路を共用することができ、非常に安価に構成することができる。 The present invention has the following effects. That is, cold water discharge from the shower head can be prevented by storing cold water at the time of water discharge in the storage space. In addition, since temperature-responsive parts such as a temperature responsive valve are not used, the same flow path as that of hot water can be shared even when cold water is required, and the structure can be configured at a very low cost.
図２〜図６に基づいて本発明の実施例の説明を行う。
図２に本発明のシャワー装置の全体構成を示す。給水本管１、給湯本管２からそれぞれ供給される水、湯は、給水管７、給湯管８内を通り、サーモスタット式などの温調弁３にて混合される。温調弁３から流出した混合水は開閉流調バルブ４（シャワーの切替えを兼ねている場合もある）を通り、通水本管５へと流出する。通水本管５はシャワーヘッド６へと連通しており、混合水はシャワーヘッド６から散水される。通水本管５の途中には分岐部分９がある。分岐部分９から分岐されるのは下方向に延びる排水路１０である。排水路１０先端の壁面には開閉弁１１が設けられる。開閉弁１１は、吐水時には開弁し、止水時には閉弁する。開閉弁１１の構造については後述する。以上が本発明のシャワー装置の全体構成である。従来例図１との違いは、通水本管５途中に分岐部分９を設け、排水路１０と開閉弁１１が設けられた点である。
The embodiment of the present invention will be described with reference to FIGS.
FIG. 2 shows the overall configuration of the shower apparatus of the present invention. Water and hot water respectively supplied from the water supply main pipe 1 and the hot water supply main pipe 2 pass through the water supply pipe 7 and the hot water supply pipe 8 and are mixed by the temperature control valve 3 such as a thermostat type. The mixed water flowing out of the temperature control valve 3 flows through the open / close flow control valve 4 (which may also serve as a shower switch) and flows out to the water main pipe 5. The water main 5 communicates with the shower head 6, and the mixed water is sprinkled from the shower head 6. There is a branching portion 9 in the middle of the water main pipe 5. Branching from the branch portion 9 is a drainage channel 10 extending downward. An opening / closing valve 11 is provided on the wall surface at the tip of the drainage channel 10. The on-off valve 11 is opened when water is discharged and closed when water is stopped. The structure of the on-off valve 11 will be described later. The above is the overall configuration of the shower device of the present invention. The difference from the conventional example of FIG. 1 is that a branch portion 9 is provided in the middle of the water main pipe 5 and a drainage channel 10 and an on-off valve 11 are provided.
次に、通水本管５中の分岐部分９について細部について説明する。開閉流調バルブ４から流出した混合水は通水本管５を通り下方向に向かう部分で分岐部分９に到達する。一方、図３（ａ）（ｂ）の分岐部分拡大図に示す通り、分岐部分９からシャワーヘッド６への通水本管５は分岐部分９から水平方向若しくは水平方向より上方に向けて伸びており、その後シャワーヘッド６側に向けて上方向に伸びている。排水路１０は分岐部分９から下方向に伸びている。分岐部分９において、開閉流調バルブ４からの通水本管５と排水路１０は直線状につながる。
また、分岐部分９の通水本管５は、分岐部分９より開閉流調バルブ４側の通水本管５よりも径が太い。
Next, details of the branch portion 9 in the water main pipe 5 will be described. The mixed water flowing out from the on-off flow control valve 4 passes through the water main pipe 5 and reaches the branching portion 9 at a portion directed downward. On the other hand, as shown in the enlarged views of the branching parts in FIGS. 3A and 3B, the water main pipe 5 from the branching part 9 to the shower head 6 extends from the branching part 9 in the horizontal direction or upward from the horizontal direction. And then extends upward toward the shower head 6 side. The drainage channel 10 extends downward from the branch portion 9. In the branch portion 9, the water main pipe 5 and the drainage channel 10 from the open / close flow control valve 4 are connected in a straight line.
Further, the water main pipe 5 of the branch portion 9 has a diameter larger than that of the water main pipe 5 closer to the open / close flow control valve 4 than the branch portion 9.
次に排水路の細部について説明する。排水路１０内の体積は、分岐部分９から給湯源２までの間で最も高い位置２８から、給湯源２までの間に溜まる水の体積以上となるように、排水路１０の長さ、内径を設定する。ここで、給湯源とは、給湯管８のうち、常時高温となる部位を意味する。図２において、給湯本管がホテル等のように循環式配管で常時高温水が循環していれば、給湯本管２が給湯源と言える。また、一般住宅のように給湯機がある場合は、給湯機が給湯源と言える。 Next, details of the drainage channel will be described. The length and inner diameter of the drainage channel 10 are such that the volume in the drainage channel 10 is equal to or greater than the volume of water accumulated between the highest position 28 between the branch portion 9 and the hot water supply source 2 and the hot water supply source 2. Set. Here, the hot water supply source means a portion of the hot water supply pipe 8 that is constantly at a high temperature. In FIG. 2, the hot water supply main 2 can be said to be a hot water source if the hot water supply main is circulated through a circulation pipe like a hotel or the like. Moreover, when there is a water heater as in a general house, the water heater can be said to be a hot water source.
次に排水路１０先端の開閉弁１１について説明する。図４、図５に開閉弁１１の断面図を示す。
開閉弁本体１２は流入口１３と、シート部材挿入口１４が設けられ、該流入口１３と該シート部材１５は９０度の角度をもっている。シート部材１５には一端にシート１６、他端に吐水口接続ねじ部１７（ねじは図示せず）が設けられる。シート部材１５と同軸に開閉弁本体１２内に、フィルター１８、バルブガイド１９、バルブ２０、ばね２１が設けられる。バルブ２０先端にはゴムシート２２が設けられる。ばね２１は、バルブ２０をシート１６から離す方向に常にバルブ２０に負荷を与える。シート部材１５の吐水口接続ねじ部１７側には、平パッキン２３、整流網２４、吐水口２５が設けられる。
Next, the on-off valve 11 at the tip of the drainage channel 10 will be described. 4 and 5 are cross-sectional views of the on-off valve 11.
The on-off valve body 12 is provided with an inlet 13 and a sheet member insertion port 14, and the inlet 13 and the sheet member 15 have an angle of 90 degrees. The sheet member 15 is provided with a sheet 16 at one end and a spout connection screw portion 17 (screw not shown) at the other end. A filter 18, a valve guide 19, a valve 20, and a spring 21 are provided in the on-off valve body 12 coaxially with the seat member 15. A rubber sheet 22 is provided at the tip of the valve 20. The spring 21 always applies a load to the valve 20 in the direction of separating the valve 20 from the seat 16. A flat packing 23, a rectifying network 24, and a water discharge port 25 are provided on the water discharge port connecting screw portion 17 side of the sheet member 15.
バルブ２０のステム部分２６は大径部２６−１と小径部２６−２より構成される。バルブガイド１９は、バルブステム部分の大径部２６−１と小径部２６−２に対応する形状である。バルブ小径部２６−２の外周クリアランスはバルブ大径部２６−１の外周クリアランスより小さい。 The stem portion 26 of the valve 20 includes a large diameter portion 26-1 and a small diameter portion 26-2. The valve guide 19 has a shape corresponding to the large diameter portion 26-1 and the small diameter portion 26-2 of the valve stem portion. The outer peripheral clearance of the valve small diameter part 26-2 is smaller than the outer peripheral clearance of the valve large diameter part 26-1.
以上により、開閉弁１１は水圧が作用しない時には、ばね２１によりバルブ２０がシート１６から離れ、開弁状態になる。水圧が作用するときには水圧によりバルブ２０がシート１６方向に移動し閉弁状態となる。 As described above, when the water pressure does not act on the on-off valve 11, the valve 20 is separated from the seat 16 by the spring 21 and is opened. When the water pressure acts, the valve 20 moves in the direction of the seat 16 due to the water pressure, and the valve is closed.
以上のシャワー装置の構成による作用は以下の通りである。すなわち、まずシャワーを使用していない状況では、排水路１０先端の開閉弁１１に、シャワー通水による水圧が作用しないため、開閉弁１１が開状態にある。このため、排水路１０内と通水本管５の中の水は抜けた状態にある。 The effect | action by the structure of the above shower apparatus is as follows. That is, first, in a situation where a shower is not used, since the water pressure due to shower water does not act on the on-off valve 11 at the tip of the drainage channel 10, the on-off valve 11 is in an open state. For this reason, the water in the drainage channel 10 and the water flow main 5 is in a state of being removed.
通水本管５中の水の抜けた箇所を、より正確に記述すると、分岐部分９からシャワーヘッド６に至る通水本管５のうちの最も高い点２７まで、および、分岐部分９から給湯源２に至る通水本管５のうちの最も高い点２８まで、となる。 More precisely describing the location where water has escaped in the water main 5, the highest point 27 of the water main 5 from the branch 9 to the shower head 6, and hot water from the branch 9. Up to the highest point 28 of the water main 5 leading to the source 2.
次に、シャワーを使用するために開閉流調バルブ４を開く。通水初期の水は分岐部分９を通り排水路１０への流入し先端の開閉弁１１に達する。開閉弁１１は水圧により閉弁状態となる。このとき通水初期の水は排水路１０内に貯留される形となる。通水初期以降の水は分岐部分９から通水本管５を通りシャワーヘッド６から散水される。このとき、排水路１０の体積は、分岐部分９から給湯源２までの間で最も高い位置２８から、給湯源２までの間に溜まる水の体積以上となるように、排水路１０の長さ、内径を設定しているため、初期の冷水部分は、排水路１０に貯留されることになる。これにより使用者はシャワー散水初期の冷水を浴びる量が低減され快適である。
シャワー使用後には、再び、排水路１０先端の開閉弁１１に、シャワー通水による水圧が作用しない状態となるため、開閉弁１１が開状態になり、排水路１０内と通水本管５の中の水は抜けた状態になる。
Next, the open / close flow control valve 4 is opened to use the shower. Water in the initial stage of water flow passes through the branch portion 9 and flows into the drainage channel 10 and reaches the opening / closing valve 11 at the tip. The on-off valve 11 is closed by water pressure. At this time, water in the initial stage of water flow is stored in the drainage channel 10. Water from the initial stage of water flow is sprinkled from the shower head 6 through the water flow main 5 from the branch portion 9. At this time, the length of the drainage channel 10 is such that the volume of the drainage channel 10 is equal to or greater than the volume of water accumulated from the highest position 28 between the branch portion 9 and the hot water supply source 2 to the hot water supply source 2. Since the inner diameter is set, the initial cold water portion is stored in the drainage channel 10. As a result, the user is comfortable because the amount of cold water in the initial stage of shower watering is reduced.
After the shower is used, water pressure due to shower water does not act on the opening / closing valve 11 at the tip of the drainage channel 10 again, so the opening / closing valve 11 is opened, and the drainage channel 10 and the water main 5 The water inside is in a drained state.
図６にシャワー散水初期の散水温度の変化のデータを示す。図中、「残水排出弁無し」と表示のあるデータは従来のシャワー装置での測定結果を示す。「残水排出弁有り」と表示のあるデータは本発明のシャワー装置での測定結果を示す。グラフ中、時間０秒でシャワーのハンドルを開状態にした。従来のシャワー装置の場合は、ハンドル開後０．３〜０．４秒まではシャワーが通水されていない時間帯で、その後シャワーが散水され、初期の冷水のために一旦温度が下がり、その後徐々に適温への上昇していく。約２秒の間、冷水が散水された。一方、本発明のシャワー装置の場合は、時間０〜１．３秒まではシャワーが通水されていない時間帯である。その後シャワーが散水され、初期の冷水のために一旦温度が下がり、その後徐々に適温への上昇していく。約１秒の間、冷水が散水され、初期の冷水の散水時間は、従来のシャワー装置に比べ、本発明のシャワー装置では短縮されているのが分かる。 FIG. 6 shows data of changes in watering temperature at the initial stage of shower watering. In the figure, data with “no residual water discharge valve” indicates the measurement result of a conventional shower device. Data indicated as “with residual water discharge valve” indicates the measurement result of the shower apparatus of the present invention. In the graph, the shower handle was opened at time 0 seconds. In the case of a conventional shower device, the shower is sprayed after 0.3 to 0.4 seconds after the handle is opened, and then the shower is sprinkled. Gradually rises to the proper temperature. Cold water was sprinkled for about 2 seconds. On the other hand, in the case of the shower device of the present invention, the time is 0 to 1.3 seconds, which is a time zone in which the shower is not passed. After that, the shower is sprinkled, the temperature once decreases due to the initial cold water, and then gradually rises to an appropriate temperature. It can be seen that the cold water is sprinkled for about 1 second, and the initial water spray time is shortened in the shower device of the present invention compared to the conventional shower device.
ここで、通水本管５中の分岐部分９において、開閉流調バルブ４から流出した混合水は通水本管５を通り下方向に向かいながら分岐部分９に到達する。一方、分岐部分９からシャワーヘッド６への通水本管５は分岐部分９から水平方向若しくは水平方向より上方に向けて伸びている。また、排水路１０は分岐部分９から下方向に伸びている。すなわち、分岐部分９において、開閉流調バルブ４からの通水本管５と排水路１０は直線状につながっており、初期の通水はシャワーヘッド６方向よりも排水路１０方向へ流れやすい構成となっている。これにより初期の冷水を確実に貯留空間である排水路１０に貯留することが可能になる。 Here, in the branch portion 9 in the water main pipe 5, the mixed water flowing out of the on-off flow control valve 4 reaches the branch portion 9 while passing downward through the water main pipe 5. On the other hand, the water main pipe 5 from the branch portion 9 to the shower head 6 extends from the branch portion 9 in the horizontal direction or upward from the horizontal direction. Further, the drainage channel 10 extends downward from the branch portion 9. That is, in the branch portion 9, the water main 5 and the drainage channel 10 from the open / close flow control valve 4 are connected in a straight line, and the initial water flow is more likely to flow in the direction of the drainage channel 10 than in the direction of the shower head 6. It has become. This makes it possible to reliably store the initial cold water in the drainage channel 10 that is a storage space.
また、排水路１０に冷水を流し込むにあたり、排水路１０内の空気と流し込む水とを置換しなければならないため、効率よく空気を抜いて水を流し込む必要がある。分岐部分９の通水本管５は、分岐部分９より給湯源２側の通水本管５よりも径を大きくしているので、分岐部分９に置換のための十分な空間が確保され、置換が起こりやすく、冷水を貯留空間である排水路１０に貯留し易くなる。そのため、冷水がシャワーヘッド６から吐水されることをより確実に防ぎ、初期冷水吐水の防止をさらに効果的に行うことができる。 Further, when the cold water is poured into the drainage channel 10, the air in the drainage channel 10 and the water to be poured must be replaced. Therefore, it is necessary to efficiently drain the air and feed the water. Since the water main pipe 5 of the branch portion 9 is larger in diameter than the water main pipe 5 on the hot water supply source 2 side than the branch portion 9, a sufficient space for replacement is secured in the branch portion 9. Replacement is likely to occur, and cold water is easily stored in the drainage channel 10 that is a storage space. Therefore, it is possible to more reliably prevent cold water from being discharged from the shower head 6 and more effectively prevent initial cold water discharge.
排水路１０先端の開閉弁１１については、バルブ２０のステム部分２６は大径部２６−１と小径部２６−２より構成され、バルブガイド１９は、バルブステム部分の大径部２６−１と小径部２６−２に対応する形状であり、バルブ小径部２６−２の外周クリアランスはバルブ大径部２６−１の外周クリアランスより小さくなっている。このため、バルブ小径部２６−２がバルブのガイドとして作用するが、小径であるためにバルブの摩擦抵抗が小さく安定したバルブの動きに供する。一方、小径部２６−２と大径部２６−１に囲まれた部分２９がバルブ移動時に水の粘性によりダンパーとして作用し、作動時の振動や異音を低減できる。作動時のバルブの速度を落とすことで、振動や異音の原因となることを防ぐためである。またバルブ２０上流に設けられたフィルター１８はバルブ２０の異物噛みなどの不具合を低減する。 Regarding the on-off valve 11 at the tip of the drainage channel 10, the stem portion 26 of the valve 20 is composed of a large diameter portion 26-1 and a small diameter portion 26-2, and the valve guide 19 is connected to the large diameter portion 26-1 of the valve stem portion. It has a shape corresponding to the small diameter part 26-2, and the outer peripheral clearance of the valve small diameter part 26-2 is smaller than the outer peripheral clearance of the valve large diameter part 26-1. For this reason, the valve small-diameter portion 26-2 acts as a guide for the valve. However, since the valve has a small diameter, the frictional resistance of the valve is small and the valve operates stably. On the other hand, the portion 29 surrounded by the small-diameter portion 26-2 and the large-diameter portion 26-1 acts as a damper due to the viscosity of water when the valve is moved, and vibrations and noise during operation can be reduced. This is to prevent vibrations and abnormal noises by reducing the valve speed during operation. Further, the filter 18 provided upstream of the valve 20 reduces problems such as the foreign matter biting of the valve 20.
また、開閉弁本体１２の流入口１３とシート部材１５が９０度の角度をもっているため、バルブ２０の移動方向と流入方向が９０度の角度をなす。このため、流入時の流動圧がバルブ２０の移動に直接作用することがなく、流動圧起因によるバルブ２０の振動の発生が少ない。 Further, since the inlet 13 of the on-off valve body 12 and the seat member 15 have an angle of 90 degrees, the moving direction and the inflow direction of the valve 20 form an angle of 90 degrees. For this reason, the flow pressure at the time of inflow does not directly affect the movement of the valve 20, and the occurrence of vibration of the valve 20 due to the flow pressure is small.
また、吐水口２５には整流網２４が設けられており排水時の音を低減させているが、吐水口２５部の通水面積がシート１６の通水面積にくらべ十分小さくしてあるため、整流網２４での排水減速の効果があり排水時の音を低減させている。 In addition, the water discharge port 25 is provided with a rectifying network 24 to reduce the noise during drainage, but the water flow area of the water discharge port 25 is sufficiently smaller than the water flow area of the seat 16. There is an effect of drainage deceleration in the rectifying network 24, and the sound during drainage is reduced.
１…給水本管
２…給湯本管・給湯源
３…温調弁
４…開閉流調バルブ
５…通水本管
６…シャワーヘッド
７…給水管
８…給湯管
９…分岐部分
１０…排水路
１１…開閉弁
１２…開閉弁本体
１３…流入口
１４…シート部材挿入口
１５…シート部材
１６…シート
１７…吐水口接続ねじ部
１８…フィルター
１９…バルブガイド
２０…バルブ
２１…ばね
２２…ゴムシート
２３…平パッキン
２４…整流網
２５…吐水口
２６…ステム
２６−１…大径部
２６−２…小径部
２７…分岐部分９からシャワーヘッド６に至る通水本管５のうちの最も高い点
２８…分岐部分９から給湯源２に至る通水本管５のうちの最も高い点
２９…小径部２６−２と大径部２６−１に囲まれた部分
DESCRIPTION OF SYMBOLS 1 ... Water supply main pipe 2 ... Hot water supply main pipe / hot water supply source 3 ... Temperature control valve 4 ... Opening / closing flow control valve 5 ... Water flow main pipe 6 ... Shower head 7 ... Water supply pipe 8 ... Hot water supply pipe 9 ... Branch part 10 ... Drainage channel DESCRIPTION OF SYMBOLS 11 ... On-off valve 12 ... On-off valve main body 13 ... Inlet 14 ... Sheet member insertion port 15 ... Sheet member 16 ... Sheet 17 ... Water discharge port connection screw part 18 ... Filter 19 ... Valve guide 20 ... Valve 21 ... Spring 22 ... Rubber sheet 23 ... Flat packing 24 ... Rectification network 25 ... Water outlet 26 ... Stem 26-1 ... Large diameter part 26-2 ... Small diameter part 27 ... The highest point of the water main pipe 5 from the branch part 9 to the shower head 6 28 ... The highest point 29 in the water main pipe 5 from the branch portion 9 to the hot water supply source 2 ... a portion surrounded by the small diameter portion 26-2 and the large diameter portion 26-1.
Claims (3)
前記シャワーヘッドからの吐水のオンオフを行う開閉流調バルブと、
該開閉流調バルブと前記シャワーヘッドとの間を連結する通水本管と、
該通水本管から分岐され、分岐部分より下方に伸びる排水路と、
該排水路に配設され、前記シャワーヘッドからの吐水時には閉弁し、止水時には開弁する開閉弁と、を備え、
前記排水路には、前記分岐部分よりも前記開閉流調バルブ側における前記通水本管に溜まる水を貯留する貯留空間を設け、
前記排水路内の体積が、前記分岐部分から前記開閉流調バルブまでの間で最も高い位置から、前記開閉流調バルブまでの間に溜まる水の体積以上であることを特徴とするシャワー装置。 Shower head,
An on-off flow control valve for turning on and off water discharged from the shower head;
A water main connecting the opening / closing flow control valve and the shower head;
A drainage channel branched from the water main and extending downward from the branched portion;
An opening / closing valve disposed in the drainage channel, which closes when water is discharged from the shower head and opens when water is stopped.
The drainage channel is provided with a storage space for storing water accumulated in the water flow main pipe on the open / close flow control valve side from the branch portion,
The shower apparatus, wherein the volume in the drainage channel is equal to or greater than the volume of water accumulated between the branch portion and the open / close flow control valve to the open / close flow control valve.
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