JP2010115322A

JP2010115322A - Waterfall bath nozzle

Info

Publication number: JP2010115322A
Application number: JP2008290265A
Authority: JP
Inventors: Yoshinobu Hori; 好伸堀; Tatsuya Kawahara; 達也川原; Yoshinori Fujisawa; 美憲藤沢; Tetsuya Yamamoto; 哲也山本; Masayuki Okuyama; 誠之奥山; Masahiro Yoshimura; 正博吉村; 博司 ▲高▼木; Hiroshi Takagi; Noboru Yokoyama; 登横山
Original assignee: Rinnai Corp; Toho Gas Co Ltd
Current assignee: Rinnai Corp; Toho Gas Co Ltd
Priority date: 2008-11-12
Filing date: 2008-11-12
Publication date: 2010-05-27

Abstract

<P>PROBLEM TO BE SOLVED: To prevent water from remaining inside a nozzle due to the surface tension of the water at a water discharge port 12a when stopping the water, with respect to a waterfall bath nozzle for dropping hot water to a bathtub inside a bathroom, wherein the shape of the water discharge port 12a at the lower end of the nozzle is elliptic. <P>SOLUTION: At the lower end part of the nozzle side surface on one side in the short axis direction of an elliptic shape which is the shape of the water discharge port 12a, a notch 12b reaching the water discharge port 12a is formed. The balance of the surface tension of the water at the water discharge port 12a is destroyed by the influence of the surface tension generated at the notch 12b and the water does not remain inside the nozzle when stopping the water. Further, the notch 12b is formed so as to leave a non-notched part 12c on both sides in the long axis direction of the elliptic shape which is the shape of the water discharge port 12a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、浴室内の浴槽に向けて温水を落下させる打たせ湯ノズルに関する。 The present invention relates to a hot water nozzle that drops hot water toward a bathtub in a bathroom.

従来、浴室暖房機に、浴槽に向けて温水を落下させる打たせ湯ノズルを付設し、入浴者が浴槽内で打たせ湯を楽しむことができるようにしたものが知られている(例えば、特許文献１参照)。 Conventionally, a bathroom heater is provided with a hot water nozzle that drops hot water toward the bathtub so that bathers can enjoy the hot water in the bathtub (for example, patents). Reference 1).

ここで、特許文献１には打たせ湯ノズルの形状が記載されていないが、一般的には、ノズル下端の吐水口の形状を円形にしている。これに対し、本願発明者は、鋭意努力の結果、吐水口の形状を楕円形にすると、吐水口から吐出する水流が落下途中で適度な大きさの水滴に分離し、この水滴が入浴者に断続的に当たって適度なマッサージ効果が得られることを知見するに至った。 Here, although the shape of the hot water nozzle is not described in Patent Document 1, in general, the shape of the water outlet at the lower end of the nozzle is circular. On the other hand, as a result of diligent efforts, the inventors of the present application made the water discharge port to be oval in shape, and the water flow discharged from the water discharge port was separated into water droplets of an appropriate size during the fall. It came to know that a moderate massage effect is acquired by hitting intermittently.

然し、吐水口を楕円形にすると、止水時に吐水口での水の表面張力によりノズル内に水が残り易くなることが判明した。ノズル内に残った水は、浴室暖房機の運転時の振動でノズルから垂れ落ち、ユーザに不快感を与えてしまう。
特開２００３−８３５５７号公報 However, it has been found that when the water outlet is elliptical, water tends to remain in the nozzle due to the surface tension of water at the water outlet when the water stops. The water remaining in the nozzle hangs down from the nozzle due to vibration during operation of the bathroom heater, which makes the user uncomfortable.
JP 2003-83557 A

本発明は、以上の点に鑑み、吐水口の形状を楕円形にしたものにおける止水時の水の残留を防止できるようにした打たせ湯ノズルを提供することをその課題としている。 In view of the above points, an object of the present invention is to provide a hot water nozzle that can prevent water from remaining at the time of water stoppage in an elliptical water discharge port.

上記課題を解決するために、本発明は、浴室内の浴槽に向けて温水を落下させる打たせ湯ノズルであって、ノズル下端の吐水口の形状が楕円形であるものにおいて、この楕円形の短軸方向片側のノズル側面の下端部に、吐水口に達する切り欠きが形成されることを特徴とする。 In order to solve the above-mentioned problems, the present invention provides a hot water nozzle that drops hot water toward a bathtub in a bathroom, and the shape of the water outlet at the lower end of the nozzle is elliptical. A notch reaching the water outlet is formed at the lower end of the nozzle side surface on one side in the short axis direction.

本発明によれば、吐水口での水の表面張力のバランスが、吐水口の短軸方向片側の切り欠きに生ずる表面張力の影響で崩される。そのため、止水時にノズル内に水が残留することを防止できる。 According to the present invention, the balance of the surface tension of water at the water outlet is disrupted by the influence of the surface tension generated at the notch on one side in the short axis direction of the water outlet. Therefore, it is possible to prevent water from remaining in the nozzle when the water stops.

また、本発明において、切り欠きは、吐水口の形状である楕円形の長軸方向両側に非切り欠き部が残るように形成されることが望ましい。これによれば、切り欠きを形成しても、吐水口から切り欠き側に片寄って温水が吐出することを防止できる。 In the present invention, it is desirable that the notch is formed so that the notched portions remain on both sides of the elliptical shape that is the shape of the water discharge port. According to this, even if the notch is formed, it is possible to prevent the hot water from being discharged from the water outlet toward the notch.

図１を参照して、ＢＲは浴室を示している。浴室ＢＲには、洗い場ＢＲａの横方向一方(右方)に位置させて浴槽ＢＴが設置されている。また、浴室ＢＲの天井部には、浴槽ＢＴの上方に位置させて浴室暖房機１が設置されている。 With reference to FIG. 1, BR has shown the bathroom. In the bathroom BR, a bathtub BT is installed on one side (right side) of the washing place BRa. Moreover, the bathroom heater 1 is installed in the ceiling part of bathroom BR so that it may be located above bathtub BT.

浴室暖房機１の暖房機本体２の下面には、浴室ＢＲ内に露出するカバー３が設けられている。カバー３には、図２、図３に示す如く、横方向一方の半部の略全域に亘る固定ルーバ４ａ付きの吸込み口４と、吸込み口４の横方向他方に位置する可変ルーバ５ａ付きの吹出し口５とが形成されている。 A cover 3 exposed in the bathroom BR is provided on the lower surface of the heater body 2 of the bathroom heater 1. As shown in FIGS. 2 and 3, the cover 3 has a suction port 4 with a fixed louver 4 a that extends over substantially the entire area of one half in the horizontal direction, and a variable louver 5 a that is located on the other side in the horizontal direction of the suction port 4. A blowout port 5 is formed.

暖房機本体２内には、吸込み口４と吹出し口５とを連通する通風路６と、通風路６を介して浴室ＢＲの空気を循環させる循環ファン７と、通風路６に流れる空気を加熱する加熱手段たる放熱器８とが設けられている。放熱器８には、図外の給湯暖房熱源機の暖房部で加熱された熱媒体(水、不凍液等)が供給される。そして、循環ファン７の作動により吸込み口４から通風路６に吸込まれた浴室ＢＲの空気が放熱器８で加熱され、温風となって吹出し口５から浴室ＢＲ内に送風される。 In the heater body 2, a ventilation path 6 that connects the suction port 4 and the outlet 5, a circulation fan 7 that circulates the air in the bathroom BR through the ventilation path 6, and the air that flows through the ventilation path 6 are heated. A radiator 8 serving as a heating means is provided. The radiator 8 is supplied with a heat medium (water, antifreeze liquid, etc.) heated by a heating section of a hot water supply / heating heat source machine (not shown). Then, the air in the bathroom BR sucked into the ventilation path 6 from the suction port 4 by the operation of the circulation fan 7 is heated by the radiator 8 and is blown into the bathroom BR from the blowout port 5 as warm air.

吸込み口４の上側にはフィルタ９が装着されている。そして、カバー３の吸込み口４と吹出し口５との間の部分に、フィルタ９の側端の把手部９ａが収まる出入れ口１０を形成し、フィルタ９を出入れ口１０を通して抜き差し自在としている。 A filter 9 is mounted on the upper side of the suction port 4. An inlet / outlet port 10 in which a handle 9a at the side end of the filter 9 is accommodated is formed in a portion between the suction port 4 and the outlet port 5 of the cover 3 so that the filter 9 can be inserted and removed through the inlet / outlet port 10. .

また、カバー３には、吹出し口５の横方向他方に隣接する部分に位置させて一対のミストノズル１１が設けられている。各ミストノズル１１は、給湯暖房熱源機の暖房部からの熱媒体を供給する図外の液々熱交換器で加熱された温水を噴霧する。噴霧された温水ミストは吹出し口５から送風される温風に乗って浴室ＢＲ内に供給される。 Further, the cover 3 is provided with a pair of mist nozzles 11 located at a portion adjacent to the other side in the horizontal direction of the outlet 5. Each mist nozzle 11 sprays hot water heated by a liquid heat exchanger (not shown) that supplies a heat medium from the heating unit of the hot water supply / heating heat source machine. The sprayed hot water mist is supplied into the bathroom BR on hot air blown from the outlet 5.

また、浴室暖房機１は、給湯暖房熱源機の給湯部からの温水を浴槽ＢＴに向けて落下させる打たせ湯ノズル１２を備えている。以下、この点について説明する。 Moreover, the bathroom heater 1 is provided with the hot water nozzle 12 which drops the hot water from the hot water supply part of the hot water supply heating heat source machine toward the bathtub BT. Hereinafter, this point will be described.

本実施形態では、吸込み口４の前後方向中央部を吸込み口４の横方向一方の側縁(吹出し口５とは逆側の側縁)から吸込み口４の横方向中央部に亘って閉塞する閉塞板部４ｂを設けている。そして、この閉塞板部４ｂに横長の透孔４ｃを開設して、打たせ湯ノズル１２を透孔４ｃに臨むように配置している。尚、打たせ湯ノズル１２に干渉することなくフィルタ９を抜き差しできるように、閉塞板部４ｂ上に位置するフィルタ９の部分は切り欠かれている。 In the present embodiment, the central portion in the front-rear direction of the suction port 4 is closed from the lateral side edge of the suction port 4 (the side edge opposite to the outlet port 5) to the lateral center portion of the suction port 4. A blocking plate portion 4b is provided. Then, a horizontally long through hole 4c is formed in the closing plate portion 4b, and the hot water nozzle 12 is arranged so as to face the through hole 4c. The portion of the filter 9 located on the closing plate portion 4b is cut out so that the filter 9 can be inserted and removed without interfering with the hot water nozzle 12.

図４を参照して、打たせ湯ノズル１２の上端には、前後方向に屈曲するエルボ管１３がクリップ１３ａを用いて連結されている。そして、打たせ湯ノズル１２への温水の供給を制御する制御弁１４の前後方向の孔軸を持つ流出孔１４ａにエルボ管１３をクリップ１４ｂを用いて回動自在に連結している。これにより、打たせ湯ノズル１２は、流出孔１４ａの前後方向の孔軸を中心にして横方向に揺動自在となる。その結果、横長の透孔４ｃ内で打たせ湯ノズル１２が横方向に変位自在となる。 Referring to FIG. 4, an elbow pipe 13 bent in the front-rear direction is connected to the upper end of the hot water nozzle 12 using a clip 13a. An elbow pipe 13 is rotatably connected to an outflow hole 14a having a hole axis in the front-rear direction of a control valve 14 that controls the supply of hot water to the hot water nozzle 12 using a clip 14b. As a result, the hot water nozzle 12 can be swung laterally about the hole axis in the front-rear direction of the outflow hole 14a. As a result, the hot water nozzle 12 struck in the horizontally long through-hole 4c can be displaced in the lateral direction.

また、図３を参照して、閉塞板部４ｂの透孔４ｃの形成部分は、打たせ湯ノズル１２の揺動中心と同心の断面円弧状に形成されている。そして、閉塞板部４ｂの上面に当接する断面円弧状の目隠し板１５を打たせ湯ノズル１２に連結し、透孔４ｃを通して内部が見えることを防止している。尚、図４では目隠し板１５を省略している。 In addition, referring to FIG. 3, the portion where the through hole 4 c of the closing plate portion 4 b is formed is formed in a circular arc shape concentric with the center of swinging of the tapping hot water nozzle 12. A blindfold plate 15 having an arcuate cross section that contacts the upper surface of the blocking plate portion 4b is connected to the hot water nozzle 12 to prevent the inside from being seen through the through hole 4c. In FIG. 4, the blindfold plate 15 is omitted.

また、本実施形態の打たせ湯ノズル１２の上端部の断面形状は、図５(ｂ)に示す如く円形であるが、ノズル下端の吐水口１２ａの形状は、図５(ｃ)に示す如く横方向を短軸方向とする楕円形に形成されている。尚、打たせ湯ノズル１２の上端部の内径をＲ１、吐水口１２ａの長軸方向の径をＲ２、吐水口１２ａの短軸方向の径をＲ３として、Ｒ１及びＲ２は例えば１８ｍｍに設定され、Ｒ３は例えば５ｍｍに設定される。 Further, the cross-sectional shape of the upper end portion of the hammered hot water nozzle 12 of this embodiment is circular as shown in FIG. 5 (b), but the shape of the water discharge port 12a at the lower end of the nozzle is as shown in FIG. 5 (c). It is formed in an elliptical shape with the lateral direction as the minor axis direction. In addition, R1 and R2 are set to 18 mm, for example, assuming that the inner diameter of the upper end portion of the hot water nozzle 12 is R1, the diameter in the major axis direction of the water outlet 12a is R2, and the diameter in the minor axis direction of the water outlet 12a is R3. R3 is set to 5 mm, for example.

このように吐水口１２ａを楕円形に形成すると、吐水口１２ａから吐出する水流が落下途中で適度な大きさの水滴に分離し、この水滴が入浴者に断続的に当たって適度なマッサージ効果が得られる。然し、吐水口１２ａが扁平になるため、止水時に吐水口１２ａでの水の表面張力により打たせ湯ノズル１２内に水が残留しやすくなる。 When the spout 12a is formed in an oval shape in this way, the water flow discharged from the spout 12a is separated into water droplets of an appropriate size during the fall, and this water droplet hits the bather intermittently, so that an appropriate massage effect is obtained. . However, since the water discharge port 12a becomes flat, water tends to remain in the hot water nozzle 12 struck by the surface tension of water at the water discharge port 12a when the water stops.

そこで、本実施形態では、打たせ湯ノズル１２に、前記楕円形の短軸方向片側のノズル側面の下端部に位置させて、図４及び図５(ａ)に示す如く吐水口１２ａに達する切り欠き１２ｂを形成している。これによれば、吐水口１２ａでの水の表面張力のバランスが、吐水口１２ａの短軸方向片側の切り欠き１２ｂに生ずる表面張力の影響で崩される。そのため、止水時に打たせ湯ノズル１２内に水が残留することを防止できる。 Therefore, in this embodiment, the tapping hot water nozzle 12 is positioned at the lower end portion of the nozzle side surface on one side of the elliptical short axis direction, and reaches the water outlet 12a as shown in FIGS. 4 and 5A. A notch 12b is formed. According to this, the balance of the surface tension of water at the water outlet 12a is broken by the influence of the surface tension generated in the notch 12b on one side in the short axis direction of the water outlet 12a. For this reason, it is possible to prevent water from remaining in the hot water nozzle 12 applied when the water is stopped.

また、本実施形態では、吐水口１２ａの形状である楕円形の長軸方向両側に非切り欠き部１２ｃが残るように切り欠き１２ｂを形成している。これによれば、切り欠き１２ｂを形成しても、吐水口１２ａから切り欠き１２ｂ側に片寄って温水が吐出することを防止できる。 Moreover, in this embodiment, the notch 12b is formed so that the non-notch part 12c may remain in the both sides of the elliptical long axis direction which is the shape of the water discharge port 12a. According to this, even if the notch 12b is formed, it is possible to prevent warm water from being discharged from the water outlet 12a toward the notch 12b.

このことを確かめるため、吐水口１２ａの長軸方向の径Ｒ２が１８ｍｍ、短軸方向の径Ｒ３が５ｍｍの打たせ湯ノズル１２を用い、非切り欠き部１２ｃの幅Ｗと切り欠き１２ｂの高さＨとを変えて実験した。その結果、Ｗが１．５ｍｍ未満でＨが６ｍｍを超えると、切り欠き１２ｂが大きくなり過ぎて、吐水口１２ａから切り欠き１２ｂ側に片寄って温水が吐出し、温水の落下位置がずれたり、水流が水滴状にうまく分離しなくなることが分かった。また、Ｗが３ｍｍを超えＨが４ｍｍ未満になると、切り欠き１２ｂが小さくなり過ぎて、吐水口１２ａでの水の表面張力のバランスが然程崩れず、止水時に打たせ湯ノズル１２内に水が残留してしまった。従って、非切り欠き部１２ｃの幅Ｗは吐水口１２ａの長軸方向の径Ｒ２の９〜１６％、切り欠き１２ｂの高さＨは４〜６ｍｍに設定することが好ましい。 In order to confirm this, a hot water nozzle 12 having a major axis diameter R2 of 18 mm and a minor axis direction diameter R3 of 5 mm is used, and the width W of the non-notched portion 12c and the height of the notch 12b are used. The experiment was carried out by changing H. As a result, when W is less than 1.5 mm and H exceeds 6 mm, the notch 12b becomes too large, the hot water is discharged from the spout 12a toward the notch 12b, and the falling position of the hot water is shifted. It was found that the water stream did not separate well in the form of water droplets. Further, when W exceeds 3 mm and H becomes less than 4 mm, the notch 12b becomes too small, and the balance of the surface tension of water at the water outlet 12a is not so disturbed, so Water has remained. Therefore, it is preferable to set the width W of the non-notched portion 12c to 9 to 16% of the major axis diameter R2 of the water discharge port 12a and the height H of the notched portion 12b to 4 to 6 mm.

また、切り欠き１２ｂは、打たせ湯ノズル１２の横方向一方のノズル側面、即ち、洗い場ＢＲａ側とは反対側のノズル側面に形成することが望ましい。これによれば、入浴者から切り欠き１２ｂが見えず、体裁が良好に保たれる。 Moreover, it is desirable to form the notch 12b on one nozzle side surface in the lateral direction of the hot water nozzle 12, that is, on the nozzle side surface opposite to the washing place BRa side. According to this, the notch 12b is not visible from the bather, and the appearance is kept good.

以上、本発明の実施形態について図面を参照して説明したが、本発明はこれに限定されない。例えば、上記実施形態の切り欠き１２ｂの形状は方形であるが、三角形や半円形の切り欠きを形成してもよい。また、上記実施形態は、浴室暖房機１に付設する打たせ湯ノズル１２に本発明を適用したものであるが、浴室暖房機とは分離独立して設ける打たせ湯ノズルにも同様に本発明を適用できる。 As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, the shape of the cutout 12b in the above embodiment is a square, but a triangular or semicircular cutout may be formed. Moreover, although the said embodiment applies this invention to the tap hot water nozzle 12 attached to the bathroom heater 1, this invention similarly applies to the hot water nozzle provided separately from the bathroom heater. Can be applied.

本発明の実施形態の打たせ湯ノズルを具備する浴室暖房機の設置状態を示す説明図。Explanatory drawing which shows the installation state of the bathroom heater which comprises the tap hot water nozzle of embodiment of this invention. 図１の浴室暖房機の斜め下方から見た斜視図。The perspective view seen from diagonally downward of the bathroom heater of FIG. 図１の浴室暖房機の切断側面図。The cutaway side view of the bathroom heater of FIG. 実施形態の打たせ湯ノズルの斜視図。The perspective view of the tap hot water nozzle of embodiment. (ａ) 実施形態の打たせ湯ノズルの横方向一方から見た側面図、(ｂ)図５(ａ)のｂ−ｂ線切断面図、(ｃ)図５(ａ)のｃ−ｃ線切断面図。(a) The side view seen from the horizontal direction one side of the tap nozzle of embodiment, (b) The bb line | wire sectional view taken on the line of FIG. 5 (a), (c) The cc line of FIG. 5 (a) Cutaway view.

Explanation of symbols

ＢＲ…浴室、ＢＴ…浴槽、１２…打たせ湯ノズル、１２ａ…吐水口、１２ｂ…切り欠き、１２ｃ…非切り欠き部。 BR ... bathroom, BT ... bath, 12 ... tap water nozzle, 12a ... spout, 12b ... notch, 12c ... non-notch.

Claims

In the hot water nozzle that drops hot water toward the bathtub in the bathroom, the shape of the water outlet at the lower end of the nozzle is elliptical,
A hammered hot water nozzle characterized in that a notch reaching the water outlet is formed at the lower end of the side surface of the nozzle on one side of the elliptical short axis direction.

2. The hot water nozzle according to claim 1, wherein the notch is formed so that non-notch portions remain on both sides of the elliptical long axis direction.