【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、洗眼用、口内洗浄用または、肛門およびその
周辺の洗浄用などに用いられる水噴射ノズルに関するも
のである．
（従来の技術〕
従来、温水洗浄便座に用いられてきたノズルは噴射され
る流体が直線状に噴射されるものであった．
（発明が解決しようとするｆｆ！ＩＩＩ）上記のように
直線状に流体が噴射されるノズルにおいては、噴射水の
当たる面積が小さくそのため、噴射水の人体に当たる箇
所が痛いという欠点を存し、また希望の箇所に噴射水を
当てるためには、体を動かして位置を調節する必要があ
った．本発明は、上記の問題点を解決すべく、噴射水が
体にあたっても痛くなく、また希望するところへ当てる
ために体を動かさなくても良い水噴射ノズルを提供する
ことを課題とする．
（！ＩＩ！ｆｉを解決するための手段〕上記目的を達成
するために、本発明の水噴射ノズルは、２つの出力口か
ら流体を流出する分岐型流体素子の一方の出力口を、渦
型流体素子の渦流を生じせしめる供給口へ接続するとと
もに、他方の出力口を該渦型流体素子の渦流を制御する
供給口へ接続してなる水噴射ノズル．
〔作用】
上記課題を解決するための本発明の水噴射ノズルにおい
ては、流体の供給部となる分岐型流体素子のコアンダ効
果（側壁付着効果）により、分岐型流体素子の２つの出
力口から流体が交互に噴射される．分岐型流体素子から
交互に噴射された流体は、渦型流体素子の２つの供給口
に交互に供給されることにより、渦型流体素子の出力口
から紡錘状の噴射水と直線状の噴射水とが交互に噴射さ
れる．
〔実施例〕
本発明の実施例を図に基づいて開示する．第１図は本発
明の！実施例の概略構造説明図である．本発明の水噴射
ノズルは分岐型流体素子７と渦型流体素子８からなる．
分岐型流体素子７は次のように構成される．流体の導入
部となる供給口９の流路の先端部に２方向への出力口３
ａ，３ｂとなるＶ字型の分岐管を接続してある．供給口
９と出力口３ａ，３ｂとの接続部の両サイドに、流体の
流れ方向に対して垂直方向に逸路として側管１ａ、１ｂ
を設けてある．側管１ａ，ｌｂは接続管２により連通し
ている．
渦型流体素子８は密閉型の円筒型をした渦室１０を主体
とし、満室１Ｇの頂部の中央部に小口径の出力口６を設
けてある．また、渦室１０の側面の２か所に流体導入口
として、供給口４と制御口５を設けてある．供給口４は
円筒形状の渦室１０の接線方向から流体を導くように配
置してある．また一方、ｔＡｍ口５は渦室ｌＯの中心方
向に向かって流入してくるように配置してある．前述の
分岐型流体素子７の出力口３ａは渦型流体素子８の供給
口４と接続し、他方の出力口３ｂは制御口５にそれぞれ
接続している．
分岐型流体素子７の働きは渦型流体素子８の２つの供給
口すなわち、供給口４と制御口５へ交互に流体を供給す
ることにあり、このことにより、渦型流体素子８の出力
口６から紡錘状と直線状の噴射水が交互に噴射される．
以下本実施例の動作内容を詳細に説明する．分岐型流体
素子７の機能の説明を容易にするため、第２図に分岐型
流体素子７の機能図を示す．供給口８と２つの出力口３
ａ，３ｂの接続部に側管１ａ，ｌｂを設け、該側管１ａ
，ｌｂは接続管２によって連通させてある．このことに
より、コアンダ効果（側壁付着現象）が現れ、供給口９
より供給された流体は、２つの出力口３ａ、３ｂから交
互に噴出される．また、接続管２の管路抵抗を種々に変
化させることにより、出力口３ａ，３ｂから交互に噴出
する振動数はＩＨｚ前後から数百Ｈｚまで変化させられ
る．
第３図は渦型流体素子の機能図である．渦流を生じせし
めるための供給口４は、円筒形状の渦室ｌＯの接線方向
から流体を導くように配置してある．そのため供給口４
より流入した流体は渦室ｌＯ内を旋回しながら出力口６
へ向い、出力口６より噴出する．゛この時流体にかかる
力は、噴出方向への力と共に、噴出方向と直角の方向に
遠心力も加わるため、出力口６からの噴出形状は一旦ラ
ッパ状に広がり、その後、流体の表面張力により先端が
すぼまり、第３図のｂ−ｔに示すように紡錘状となる．
一方渦室ｌＯの中心方向に流入して《るように配置され
た制御口５から流入した場合は、出力口６より噴出する
流体にかかる力は噴出方向の力のみであるため、第３図
のｂ−２にしめすような直線状の噴射状態となる．
分岐型流体素子７の出力口３ａ、３ｂを渦型流体素子８
の供給口４および制御口５にそれぞれ接続することによ
り、紡錘状の噴射とほぼ直線状の噴射を交互に繰り返す
ことができる．
第４ＷＪは本発明の他の実施例の分解斜視図を示す．分
岐型流体素子７と渦型流体素子８とを上下に重ねた構造
となっている．第４図に示すように流体の導入部となる
供給口９を除いて、主夏な各構造部は、必要な肉厚を持
うた黄銅の板杖物に流体の通路を《り抜いたものを積層
する構造となっている．第４図ａは黄銅の板状物に側管
１ａ，１ｂと接続管２を上開きの溝形状に《り抜いたも
ので、側管１ａ，ｌｂは第４図ｂの側管１ａ，ｌｂと連
通している．また、接続管２の上部は第４図ｂの底部に
て密封される．
第４ｗＪｂは流体の導入部となる供給口９が管状物でそ
の出力口３ａ，３ｂおよび出力口３ａ，３ｂへのＶ字状
流路は板状物を上開きの溝形状にくり抜いたものである
．また、第４図ｂに示す側管ｌ ａ −， １ ｂは
板状物を上から下まで貫通した形でくり抜いてある．
第４図Ｃは板状物に渦室１０の一部となる円筒状の底部
を形成するようにくり抜き、これに渦室１０への流体供
給口となる供給口４と制御口５は上から下まで貫通した
形で《り抜いてある．また供給口４と制御口５から渦室
１０への流路を溝状にくり抜いてある．供給口４と制１
ｎ口５は第４図ｂの出力口３ａ，３ｂと連通している．
第４図ｄは渦室ｌＯの上部を形成するもので、第４図Ｃ
の渦室１０の底部と一体となる位置に円筒状にくり抜き
、頂部に噴出口となる小口径の出力口６が開けられてい
る．
以下作動内容について開示する．分岐型流体素子７の供
給口９より導入された流体はＶ字型の流路を経由し、出
力口３ａ、３ｂへ向かう．この時、側管１ａ，ｌｂは接
続管２によって連通され、その結果側管１ａ％ｌｂ近傍
にコアンダ効果（側壁付着現象）が生じ流体は分岐型流
体素子７の出力口３ａ、３ｂから交互に噴出される．出
力口３ａを経由し、供給口４から流入した流体は、供給
口４が渦型流体素子の渦室ｌＯの接線方向へ流体を流入
させるように配置されてあるので、流体は渦室１０内で
旋回しながら出力口６へ向い、出力口６より噴出する．
この時流体にかかる力は噴出方向に加えて、噴出方向と
垂直方向に遠心力が働くため、出力口６からの噴出形状
は一旦ラッパ状に広がり、その後、流体の表面張力によ
り先端がすぼまり、噴出の形状は紡錘状となる出力口３
ｂを経由し、渦室１０の中心方向に流入してくるように
配置された制御口５から流入した場合は、出力口６より
噴出する流体にかかる力は噴出する方向のみとなるため
直線状の噴射状態となる．
渦型流体素子８の供給口４と制御口５は分岐型流体素子
７の２つの出力口３ａ、３ｂにそれぞれ接続されている
ため渦型流体素子８の出力口６からは紡錘状の碩射とほ
ぼ直線状の噴射が交互に繰り返されることとなる．
〔発明の効果〕
本発明の水噴射ノズルは、紡錘状の噴射と直線状の噴射
を交互に繰り返すことができ、広い面積に噴射水が掃《
ように噴射されるため、噴射水の体に当たるところが痛
《なく、また希望するところへ当てるために体を動かさ
なくても良いのである．DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a water jet nozzle used for eye washing, mouth washing, or washing of the anus and surrounding area. (Prior art) Conventionally, the nozzle used for a hot water bidet toilet seat is one in which the fluid is jetted in a straight line. (ff! III to be solved by the invention) In the case of nozzles that spray fluid onto the body, the area that the sprayed water hits is small, so the area where the sprayed water hits the human body has the disadvantage of causing pain. It was necessary to adjust the position.In order to solve the above problems, the present invention has developed a water jet nozzle that does not cause pain even when the water spray hits the body, and does not require the body to move in order to hit the desired area. (Means for Solving !II!fi) In order to achieve the above object, the water injection nozzle of the present invention has a branch type fluid element that flows out fluid from two output ports. A water injection nozzle in which one output port is connected to a supply port that generates a vortex flow of a vortex fluid element, and the other output port is connected to a supply port that controls the vortex flow of the vortex fluid element. ] In the water injection nozzle of the present invention to solve the above problems, the fluid is alternately supplied from the two output ports of the branched fluid element due to the Coanda effect (side wall adhesion effect) of the branched fluid element that serves as the fluid supply section. The fluid alternately injected from the branched fluid element is alternately supplied to the two supply ports of the vortex fluid element, so that the fluid is sprayed from the output port of the vortex fluid element into a spindle-shaped jet of water. Linear water jets are alternately injected. [Embodiment] An embodiment of the present invention will be disclosed based on the drawings. Fig. 1 is a schematic structural explanatory diagram of an embodiment of the present invention. The present invention The water jet nozzle consists of a branch type fluid element 7 and a vortex type fluid element 8.The branch type fluid element 7 is constructed as follows.At the tip of the flow path of the supply port 9, which serves as the fluid introduction part, there are two Direction output port 3
V-shaped branch pipes a and 3b are connected. Side pipes 1a, 1b are provided on both sides of the connection between the supply port 9 and the output ports 3a, 3b as escape routes in a direction perpendicular to the fluid flow direction.
is provided. The side pipes 1a and lb are connected through a connecting pipe 2. The vortex fluid element 8 mainly has a closed cylindrical vortex chamber 10, and a small-diameter output port 6 is provided at the center of the top of the full chamber 1G. Furthermore, a supply port 4 and a control port 5 are provided at two locations on the side surface of the vortex chamber 10 as fluid introduction ports. The supply port 4 is arranged to introduce fluid from the tangential direction of the cylindrical vortex chamber 10. On the other hand, the tAm port 5 is arranged so that the flow flows toward the center of the vortex chamber IO. The output port 3a of the aforementioned branch type fluid element 7 is connected to the supply port 4 of the vortex type fluid element 8, and the other output port 3b is connected to the control port 5, respectively. The function of the branched fluid element 7 is to alternately supply fluid to the two supply ports of the vortex fluid element 8, that is, the supply port 4 and the control port 5. From step 6, spindle-shaped and linear water jets are sprayed alternately. The operation of this embodiment will be explained in detail below. In order to facilitate the explanation of the functions of the branched fluid device 7, a functional diagram of the branched fluid device 7 is shown in FIG. Supply port 8 and two output ports 3
Side pipes 1a and lb are provided at the connection part of a and 3b, and the side pipe 1a
, lb are communicated by connecting pipe 2. As a result, the Coanda effect (side wall adhesion phenomenon) appears, and the supply port 9
The supplied fluid is alternately ejected from the two output ports 3a and 3b. Furthermore, by varying the resistance of the connecting pipe 2, the frequency of the vibrations alternately emitted from the output ports 3a and 3b can be varied from around IHz to several hundred Hz. Figure 3 is a functional diagram of the vortex fluid element. The supply port 4 for generating a vortex flow is arranged so as to introduce fluid from the tangential direction of the cylindrical vortex chamber IO. Therefore, supply port 4
The inflowing fluid flows through the output port 6 while swirling inside the vortex chamber lO.
and ejects from the output port 6.゛At this time, the force applied to the fluid is not only the force in the jetting direction, but also the centrifugal force in the direction perpendicular to the jetting direction, so the shape of the jet from the output port 6 temporarily expands into a trumpet shape, and then the surface tension of the fluid causes the tip to collapse. becomes narrower and becomes spindle-shaped as shown in b-t in Figure 3.
On the other hand, if the fluid flows in from the control port 5, which is arranged so as to flow toward the center of the vortex chamber lO, the force applied to the fluid ejected from the output port 6 is only in the ejection direction. This results in a linear injection state as shown in b-2. The output ports 3a and 3b of the branch type fluid element 7 are connected to the vortex type fluid element 8.
By connecting them to the supply port 4 and the control port 5, respectively, spindle-shaped injection and substantially linear injection can be alternately repeated. 4th WJ shows an exploded perspective view of another embodiment of the present invention. It has a structure in which a branch type fluid element 7 and a vortex type fluid element 8 are stacked one above the other. As shown in Fig. 4, except for the supply port 9 that serves as the fluid introduction part, the main structural parts are made of a brass plate with the necessary wall thickness with a fluid passage cut out. It has a structure in which layers are layered. Fig. 4a shows a brass plate with side pipes 1a, 1b and connecting pipe 2 cut out in the shape of grooves opening upward. It communicates with Further, the upper part of the connecting pipe 2 is sealed at the bottom part as shown in FIG. 4b. In the fourth wJb, the supply port 9 that serves as the fluid introduction part is tubular, and the output ports 3a, 3b and the V-shaped flow passages to the output ports 3a, 3b are formed by hollowing out a plate-shaped material in the shape of an upwardly opening groove. be. Furthermore, the side pipes 1a- and 1b shown in Fig. 4b are hollowed out so as to pass through the plate-like material from top to bottom. In FIG. 4C, a plate-shaped object is hollowed out to form a cylindrical bottom that becomes a part of the vortex chamber 10, and a supply port 4 and a control port 5, which serve as fluid supply ports to the vortex chamber 10, are inserted from above. It is cut out in a way that goes all the way to the bottom. In addition, the flow path from the supply port 4 and control port 5 to the vortex chamber 10 is cut out in the form of a groove. Supply port 4 and control 1
The n-port 5 communicates with the output ports 3a and 3b in FIG. 4b.
Figure 4 d forms the upper part of the vortex chamber lO, and Figure 4 C
The vortex chamber 10 is hollowed out into a cylindrical shape at a position that is integrated with the bottom of the vortex chamber 10, and a small-diameter output port 6 is opened at the top to serve as a spout. The details of the operation are disclosed below. The fluid introduced from the supply port 9 of the branched fluid element 7 passes through a V-shaped flow path and heads toward the output ports 3a and 3b. At this time, the side pipes 1a and lb are communicated through the connecting pipe 2, and as a result, a Coanda effect (side wall adhesion phenomenon) occurs near the side pipe 1a%lb, and the fluid is alternately flowed from the output ports 3a and 3b of the branched fluid element 7. It is ejected. The fluid flowing in from the supply port 4 via the output port 3a is arranged so that the fluid flows into the vortex chamber 10 in the tangential direction of the vortex chamber IO of the vortex type fluid element. It turns toward the output port 6 and ejects from the output port 6.
At this time, the force applied to the fluid is in addition to the centrifugal force acting in the direction perpendicular to the jetting direction, so the shape of the jet from the output port 6 temporarily expands into a trumpet shape, and then the tip becomes concave due to the surface tension of the fluid. The output port 3 has a spindle-like shape.
If the fluid flows in from the control port 5, which is arranged so as to flow toward the center of the vortex chamber 10, via the outlet port 6, the force applied to the fluid ejected from the output port 6 is only in the ejecting direction. The state of injection is reached. Since the supply port 4 and the control port 5 of the vortex fluid element 8 are connected to the two output ports 3a and 3b of the branched fluid element 7, respectively, a spindle-shaped inlet is emitted from the output port 6 of the vortex fluid element 8. Almost linear injections are repeated alternately. [Effects of the Invention] The water injection nozzle of the present invention can alternately repeat spindle-shaped injection and linear injection, and the water injection nozzle sweeps over a wide area.
Because the water is sprayed in such a way, it doesn't hurt where the water hits your body, and you don't have to move your body to get the water to hit the desired area.
【図面の簡単な説明】[Brief explanation of the drawing]
第１図は、本発明の一実施例ａ分解斜視図、第２図は、
分岐型流体素子７の機能説明図、第３図＄１！ｌｉｌ！
は、他の実施例の分解斜視図である．
Ｉａ，ｌｂ−・・・・側管、２・・・・・接続管、３ａ
，３ｂ・−・・出力口、４一 供給口、５制御口、６
・・・・出力口、７・−・・分岐型流体素子、８・・−
・渦型流体素子、９・・一供給口ｌＯ・・・・渦室．
！１２ｍ
第４１１
１ｇ３図
（ａ）
（ｂ−１）
手続補正書帽辣正）FIG. 1 is an exploded perspective view of an embodiment of the present invention, and FIG.
Functional explanatory diagram of branch type fluidic element 7, Figure 3 $1! lil! is an exploded perspective view of another embodiment. Ia, lb-...Side pipe, 2...Connecting pipe, 3a
, 3b --- Output port, 4- Supply port, 5 Control port, 6
...output port, 7...branch type fluidic element, 8...-
- Vortex type fluid element, 9... One supply port lO... Vortex chamber. ! 12m No. 411 Figure 1g3 (a) (b-1) Procedural amendments