JP2000157563A - Mouth washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wash dental plaque stuck to the rear side of teeth and food residues or the like between the teeth or between an artificial tooth and gums without damaging the teeth and the gums. SOLUTION: This washer is constituted with a washer main body 1 where a water passage is formed from a washing water injection port to a jetting hole as a base body. The water passage inside the base body is provided with a stream direction conversion part 15 for adjusting the pressure of washing water and dispersing the flowing direction and a rotary flow generation part 13 for generating streams dispersed in the stream direction conversion part to one rotary flow. The washing water passing through the water passage is generated into the rotary flow while passing and jetted from the jetting hole 141 as one beam-like stream by the water pressure. Since a part between the teeth or the like is washed without being into contact with a washing part, the teeth and the gums are not damaged.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明は、口腔内洗浄器、
特に歯と歯の隙間や義歯と歯肉との隙間に挟まった残渣
の洗浄に適した口腔内洗浄器に関するものである。TECHNICAL FIELD The present invention relates to a mouthwash,
More particularly, the present invention relates to an intraoral irrigator suitable for cleaning residues caught between teeth and between teeth and between dentures and gingiva.

【０００２】[0002]

【従来の技術】口腔内の洗浄は歯周病や虫歯の予防、さ
らには風邪の予防等にも有効である。そのため、多くの
者は歯ブラシで歯を磨いたり、うがいをしたりして口腔
内の洗浄を行っている。しかしながら、年齢を重ねると
共に虫歯も多くなり、歯の並びが悪くなったり、歯肉が
後退し歯と歯の隙間や義歯と歯肉の隙間も多くなるた
め、歯間等に残る食物残渣も多くなる。従って歯ブラシ
等では口腔内の隅々まできれいに清掃することができな
くなってくる。このような場合のために糸楊子等が市販
されており、これらを用いて歯と歯の間の垢を取り除く
等の清掃方法等も良く知られている。2. Description of the Related Art Washing of the oral cavity is effective for preventing periodontal disease and caries, and also for preventing a cold. Therefore, many people clean their mouths by brushing their teeth with a toothbrush or gargle. However, as the age increases, the number of caries increases, the alignment of the teeth becomes worse, the gums recede, and the gap between the teeth and the denture and the gap between the denture and the gum increase, so that food residues remaining between teeth and the like also increase. Therefore, it becomes impossible to clean every corner of the oral cavity with a toothbrush or the like. For such a case, a toothpick or the like is commercially available, and a cleaning method or the like using these to remove debris between teeth is well known.

【０００３】また、口腔内の洗浄を行う方法の一つとし
て特開平９−３２７３３２公報に記載された口腔内洗浄
用歯ブラシがある。これは歯ブラシ本体に中空パイプ状
の通水路を形成すると共に歯ブラシ本体の先端に毛体部
分を有する円柱状のブラシ台を回転自在に取り付け、通
水路に圧力水を流入させることによってブラシ台を回転
させ、それによってブラッシング効果を得ようとするも
のである。また、その他の口腔内洗浄器として特開平９
−１２２１５５公報に記載されたものがある。これは本
体に中空パイプ状の通水路を形成する点において前記歯
ブラシと同様であるが、洗浄水噴出部は複数の孔を有す
る球状体に構成されており、この球状体を口腔内に挿入
して洗浄を行おうとするものである。[0003] As one of the methods for cleaning the oral cavity, there is a toothbrush for cleaning the oral cavity described in JP-A-9-327332. In this method, a hollow pipe-shaped water passage is formed in the toothbrush body, and a cylindrical brush stand having a bristle portion is rotatably mounted at the tip of the toothbrush body, and the brush stand is rotated by flowing pressurized water into the water passage. And thereby to obtain a brushing effect. Further, as another mouth washing device, Japanese Patent Application Laid-Open
There is one described in -122155. This is similar to the toothbrush in that a hollow pipe-shaped water passage is formed in the main body, but the washing water jetting part is configured as a spherical body having a plurality of holes, and this spherical body is inserted into the oral cavity. Cleaning.

【０００４】[0004]

【発明が解決しようとする課題】しかし、糸楊子等を用
いて歯と歯の間の垢を取り除く方法は歯ぐきや歯自体を
傷つけやすく好ましい方法とは言えない。また、前記特
開平９−３２７３３２号公報記載の口腔内洗浄用歯ブラ
シにあっては毛体部分が歯に接触し、その接触抵抗によ
ってブラシ台が十分に回転しなかったり、毛体部分が回
転するブラシ台に取り付けられているため小型化に限度
があり、奥歯裏側の洗浄や歯間洗浄、特に義歯と歯肉と
の隙間の洗浄には十分な効果が得られないといった問題
があった。However, the method of removing debris between teeth by using a toothpick or the like is not preferable because the gums and the teeth themselves are easily damaged. In addition, in the toothbrush for intraoral washing described in JP-A-9-327332, the hair part comes into contact with the teeth, and the brush stand does not rotate sufficiently or the hair part rotates due to the contact resistance. Since it is mounted on the brush base, there is a limit to miniaturization, and there is a problem that sufficient effects cannot be obtained for cleaning the back side of the back teeth and cleaning between teeth, particularly for cleaning the gap between the denture and the gingiva.

【０００５】さらに特開平９−１２２１５５号公報記載
の口腔内洗浄器では洗浄水が水噴出部の球体表面から放
射状に射出され、口腔内全体を洗浄するように構成され
ているが、これは、薬剤等の使用による口腔内の殺菌洗
浄等を主目的としたもので、発明の特徴点は口腔の洗浄
中に手や袖口をぬらしたり汚したりしないように手元を
保護する構成にある。洗浄水噴出部の複数の孔から射出
される一本一本の水流は水圧が弱められるため、口腔内
の隙間に挟まった残渣の洗浄に対しては十分な効果が期
待できないという問題が残っている。[0005] Further, in the mouth washing device described in Japanese Patent Application Laid-Open No. 9-122155, washing water is radially ejected from the spherical surface of the water jetting portion to wash the entire mouth. The main purpose of the present invention is to sterilize and wash the oral cavity by using a drug or the like, and the feature of the present invention is to protect the hands and cuffs from getting wet or dirty during washing the oral cavity. Since the water pressure of each water stream ejected from the multiple holes of the washing water jetting part is weakened, there remains a problem that it is not possible to expect a sufficient effect for washing the residue caught in the gap in the oral cavity. I have.

【０００６】本発明は、このような状況に鑑みてなされ
たものであり、従来の洗浄具では十分な効果の得られな
かった歯の表裏にこびりついた歯垢の除去や歯間または
義歯と歯肉との間の食物残渣の洗浄を歯肉等を傷つけず
快適にかつ確実に行うことができるだけでなく、同時に
歯肉マッサージを行うことによって歯肉炎、歯槽膿漏等
を有効に防止することができる口腔内洗浄具を提供する
ことを目的とする。[0006] The present invention has been made in view of such a situation, and removes plaque stuck to the front and back of the teeth and removes interdental or dentures and gingiva, which were not sufficiently effective with the conventional cleaning tool. In addition to washing the food residue between the mouth and the mouth without harming the gingiva, it can be performed comfortably and reliably, and at the same time, gingivitis, pyorrhea, etc. can be effectively prevented by performing gingival massage It is intended to provide a cleaning tool.

【０００７】[0007]

【課題を解決するための手段】上記目的を達成するため
に、本発明にかかる口腔内洗浄具は中空パイプ状の洗浄
具本体を基体とし構成されている。この洗浄具本体内部
には一端を洗浄水注入口とし、他端を洗浄水射出孔とす
る通水路が形成され、洗浄水射出孔の断面積は洗浄水注
入口の断面積より小さく形成される。洗浄具本体の形状
に特に限定はないが口腔内洗浄具であり、片手で握って
使用できる長尺状の形が好ましく、また通水路は長尺方
向に伸びて形成されることが好ましい。Means for Solving the Problems To achieve the above object, an intraoral cleaning device according to the present invention comprises a hollow pipe-shaped cleaning device main body as a base. Inside the cleaning tool main body, a water passage having one end as a cleaning water inlet and the other end as a cleaning water injection hole is formed, and a cross-sectional area of the cleaning water injection hole is formed smaller than a cross-sectional area of the cleaning water injection port. . Although there is no particular limitation on the shape of the cleaning tool body, the cleaning tool body is an intraoral cleaning tool, preferably a long shape that can be used with one hand, and the water passage is preferably formed to extend in the long direction.

【０００８】この洗浄具本体の通水路内部のほぼ中央近
傍には水流方向変換部がを設けられている。この部分は
注入された洗浄水の圧力調整と洗浄水の流方向を複数本
の分水流に分散させる働きを有する部分である。洗浄水
注入口からこの水流方向変換部までの通水路内部には注
入された洗浄水が一時的に蓄積される空間が形成され
る。また、洗浄具本体の内部にあって、水流方向変換部
と前記射出孔と間の通水路には回転流生成部が設けられ
ている。回転流生成部は、水流方向変換部において複数
本に分散された分水流を一本の回転流に生成し、洗浄水
射出孔から射出される洗浄水が一本のビーム状の水流と
なるようにするものである。[0008] A water flow direction changing portion is provided near the center of the inside of the water passage of the cleaning tool body. This part has a function of adjusting the pressure of the injected cleaning water and dispersing the flow direction of the cleaning water into a plurality of water separation flows. A space for temporarily storing the injected cleaning water is formed inside the water passage from the cleaning water inlet to the water flow direction changing portion. In addition, a rotary flow generating unit is provided in the water passage between the water flow direction changing unit and the injection hole inside the cleaning tool main body. The rotating flow generating unit generates the divided water flows dispersed in the water flow direction changing unit into a single rotating flow, so that the cleaning water injected from the cleaning water injection hole becomes a single beam-shaped water flow. It is to be.

【０００９】本発明にかかる口腔内洗浄具は以上説明し
た洗浄具本体と本体内部に形成された水流方向変換部と
回転流生成部とから基本的に構成されるが、洗浄具本体
の端部に形成される洗浄水射出孔を内径がおよそ数ｍｍ
の細管に形成し、洗浄具本体の通水路方向軸線に対し
て、直線状に若しくは曲線状に傾斜若しくは湾曲させて
形成することが好ましい。このように構成すれば、洗浄
水射出孔先端の口腔内への挿入が簡単になり、義歯と歯
肉の間の隙間や歯の隙間に歯の裏側からも直接洗浄水を
射出できるため、洗浄がしやすくなるだけでなく、射出
されるビーム状水流の圧力を高めることができるため、
口腔内洗浄の効果を高めることができる。The oral cavity cleaning tool according to the present invention basically comprises the above-described cleaning tool main body, a water flow direction changing portion formed inside the main body, and a rotary flow generating portion. The inside diameter of the washing water injection hole formed is approximately several mm
It is preferable that the cleaning tool is formed in such a manner as to be inclined or curved linearly or curvedly with respect to the axis of the cleaning tool body in the direction of the water passage. With this configuration, it is easy to insert the tip of the washing water injection hole into the oral cavity, and the washing water can be directly injected from the back side of the tooth into the gap between the denture and the gum or the gap between the teeth, so that the washing is performed. In addition to being able to increase the pressure of the emitted beam-like water stream,
The effect of washing the mouth can be enhanced.

【００１０】本発明の口腔内洗浄具によれば、その本体
の一端に形成された洗浄水注入口と水道の蛇口とを給水
ホースで直結し水道水の圧力を利用して口腔内に洗浄水
を射出するため、何ら動力を必要とせず経済的であるだ
けでなく、歯や歯ぐきと洗浄具との接触がないため歯や
歯肉を痛めることがなく、歯の隙間の洗浄が極めて容易
となる。また射出される洗浄水は一本の細いビーム状の
圧力水流となるため、歯肉に対するマッサージ効果が期
待できる。According to the mouthwash of the present invention, the flush water inlet formed at one end of the main body is directly connected to the faucet of the tap by a water supply hose, and the flush water is introduced into the mouth using the pressure of the tap water. Injecting oil, not only does not require any power and is economical, but also because there is no contact between the teeth and gums and the cleaning tool, it does not hurt the teeth and gums, making it extremely easy to clean the gap between teeth . In addition, the cleaning water to be injected is a single narrow beam-like pressure water flow, so that a massage effect on gingiva can be expected.

【００１１】[0011]

【発明の実施の形態】以下、本発明の実施の形態を図面
を用いて詳細に説明する。本発明にかかる口腔内洗浄具
本体１の外観図を図１に、その軸線（２０）方向の断面
図を図３に示す。洗浄具本体１は接続部１１、手握部１
２、収束部１３と射出部１４から構成されている。洗浄
具本体１の内部は中空となっており、図３に示すよう
に、接続部１１（図（１）（ａ）の左端注入口１１２）
から射出部１４（同図右端射出孔１４１）まで通水路が
形成されている。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an external view of an intraoral cleaning device main body 1 according to the present invention, and FIG. 3 is a cross-sectional view in the direction of an axis (20) thereof. The cleaning tool main body 1 includes a connection portion 11 and a hand grip portion 1.
2. It is composed of a converging section 13 and an emitting section 14. The inside of the cleaning tool main body 1 is hollow, and as shown in FIG. 3, the connection portion 11 (the left end injection port 112 in FIGS. 1A and 1A).
A water passage is formed from to the injection part 14 (the right end injection hole 141 in the figure).

【００１２】接続部１１は給水ホース（図示しない）を
洗浄具本体１に接続させる部分であり、ホース内部に接
続部１１を挿入して使用する。接続部１１の表面上には
挿入時の抵抗をなるべく小さくして抜脱時の接触抵抗が
増加するように鋸歯型の切り込み１１１が設けられてい
る。The connecting portion 11 is a portion for connecting a water supply hose (not shown) to the cleaning tool main body 1, and is used by inserting the connecting portion 11 inside the hose. On the surface of the connecting portion 11, a saw-shaped cutout 111 is provided so as to minimize the resistance during insertion and increase the contact resistance during removal.

【００１３】手握部１２は洗浄具の使用者が通常、使用
中に手で握る部分であり、手握部１２の表面上には滑り
止め加工が施されている。手握部１２と接続部１１とは
固定的に接続されたものでも良いが、洗浄具使用時の給
水ホースのねじれ等を解消し使いやすさを得るため、回
転自由な構造とすることが好ましい。図２（ａ）（ｂ）
には自由度１の回転構造の例を二つ模型的に示した。な
お、これに限られるものではなく、連結部分に球継ぎ手
等を使用して回転方向の自由度を上げることが好まし
い。The handgrip portion 12 is a portion that is normally gripped by a user of the cleaning tool during use, and the surface of the handgrip portion 12 is subjected to a non-slip process. The handgrip portion 12 and the connection portion 11 may be fixedly connected. However, it is preferable that the handhold portion 12 and the connection portion 11 have a freely rotatable structure in order to eliminate twisting of the water supply hose when the cleaning tool is used and to obtain ease of use. . FIGS. 2A and 2B
FIG. 2 schematically shows two examples of a rotating structure having one degree of freedom. However, the present invention is not limited to this, and it is preferable to increase the degree of freedom in the rotation direction by using a ball joint or the like for the connecting portion.

【００１４】手握部１２の通水路２１の終端（回転流生
成部と収束部との境界近傍）近くには、図３に示すよう
に水流変換器１５が取り付けられている。この水流変換
器１５は図４（ａ）（ｂ）に示すように、中空の円錐体
形に形成され、円錐状の側面には４つの分水孔１５１が
設けられている。水流変換器１５は手握部１２の通水路
２１に流入した水流が直接射出孔１４１から流出しない
ように、一時的にその流れを止め、洗浄水を蓄積するも
のであり、分水孔１５１は給水圧によって洗浄水を４方
向の分水流に分散させるためのものである。その孔の大
きさの変更によって射出部１４からの射出水圧を調整す
ることができる。A water flow converter 15 is mounted near the end of the water passage 21 of the handgrip portion 12 (near the boundary between the rotary flow generating portion and the converging portion) as shown in FIG. As shown in FIGS. 4A and 4B, the water flow converter 15 is formed in a hollow conical shape, and four water diversion holes 151 are provided on the conical side surface. The water flow converter 15 temporarily stops the flow of water that has flowed into the water passage 21 of the handgrip 12 so as not to flow directly out of the injection hole 141, and accumulates washing water. This is for dispersing the washing water into the water flow in four directions by the water supply pressure. By changing the size of the hole, the injection water pressure from the injection unit 14 can be adjusted.

【００１５】水流変換器１５には、さらに円錐体の底面
部に当たる円周上に径方向に張り出した係止部１５２が
形成されており、これが手握部１２の通水路内壁に形成
された円形の係止溝１２１と係合して洗浄具本体１に取
り付けられるように構成されている。なお、図示しない
が、この水流変換器１５は手握部１２を係止溝１２１の
部位で２分割し、分割された各部分に雌雄のねじを切る
ことによって着脱可能に構成し、同時に水流変換器１５
を本体１の外部に取り出し可能にしておくことが好まし
い。このような構成にすれば、水垢で汚れた内部掃除が
容易となるだけでなく、水流変換部１５の取替えが可能
となり、分水孔１５１の大きさの異なった水流変換器１
５を使用することにより水圧の調整も容易となる。The water flow converter 15 is further formed with a locking portion 152 that protrudes radially on a circumference corresponding to the bottom surface of the cone, and this is formed into a circular shape formed on the inner wall of the water passage of the handgrip portion 12. And is attached to the cleaning tool main body 1 by engaging with the locking groove 121. Although not shown, the water flow converter 15 is configured to be detachable by dividing the handgrip portion 12 into two parts at the locking groove 121 and threading male and female threads into each of the divided parts. Table 15
Is preferably made to be able to be taken out of the main body 1. According to such a configuration, not only the inside that is stained with water scale can be easily cleaned, but also the water flow conversion unit 15 can be replaced, and the water flow converters 1 having different sizes of the water diversion holes 151 are provided.
The use of 5 also facilitates adjustment of the water pressure.

【００１６】収束部１３の内部には射出孔１４１からの
水流がミスト状になることなく、一本の細いビーム状の
水流となるように、給水ホースから流入した水の流れを
回転流に作り替える回転流生成部が形成されている。断
面Ａ−Ａ（図１（ａ））から見た収束部１３の断面構成
を図５に示す。収束部１３の内部は４枚の境界壁１６に
よって４つの分水路１８に分割されており、境界壁の後
半部（射出孔に近い部分）１７はスクリュー羽根のよう
に中心軸に対し、同一回転を生じさせるようなねじりが
加えられている。なお、水流変換器１５の４つの分水孔
１５１は、この４つの分水路１８の上部に位置するよう
に開口させる。In the converging section 13, the flow of water flowing from the water supply hose is changed to a rotational flow so that the water flow from the injection hole 141 does not become mist but becomes a single narrow beam-like water flow. A rotary flow generation unit is formed. FIG. 5 shows a cross-sectional configuration of the converging portion 13 as viewed from the cross section AA (FIG. 1A). The inside of the converging portion 13 is divided into four water diversion channels 18 by four boundary walls 16, and the latter half (portion close to the injection hole) 17 of the boundary wall rotates the same as the screw shaft with respect to the central axis like a screw blade. To give rise to a twist. The four water diversion holes 151 of the water flow converter 15 are opened so as to be located above the four water diversion channels 18.

【００１７】射出部１４の内部は細い射出孔１４１とな
っており、収束部１３の分水路１８に流れ込んだ水が境
界壁１６とその後半部１７のスクリュ羽根部分によって
回転流に生成され一本となった水流をそのまま外部に射
出する。このような構成にすれば、洗浄具内壁との接触
抵抗による水流の乱れを押さえて、整った一本のビーム
状の水流として外部に射出することができる。The inside of the injection section 14 is formed as a thin injection hole 141, and the water flowing into the diversion channel 18 of the converging section 13 is generated by the boundary wall 16 and the screw blade portion of the rear half portion 17 thereof into a rotary flow to form one flow. Inject the water flow that has become outside as it is. With such a configuration, it is possible to suppress disturbance of the water flow due to contact resistance with the inner wall of the cleaning tool, and to eject the water to the outside as a single beam-shaped water flow.

【００１８】射出部１４の形状は洗浄具本体１の通水路
方向軸線２０に対して射出方向に傾斜を設けず真直であ
っても良いが、口腔内洗浄をしやすくするために軸線２
０に対して傾斜を設ける方が好ましい。図１（ａ）に示
すものは軸線２０に対して傾斜を設けない場合であり、
請求項１に記載の発明に対応するものである。図１
（ｂ）から（ｄ）に示すものは軸線２０に対し傾斜を設
けた構成例であり、請求項２に記載の発明に対応するも
のである。（ｂ）は直線状に傾斜角を約２０度とした例
であり、（ｃ）は傾斜角を約６０度まで湾曲させた構成
例である。特に歯の裏側等の歯間清掃には傾斜角を約１
３０度以上にした（ｄ）のような形状の射出部１４とす
ることが好ましい。また、射出孔１４１の断面は円形が
好ましく、その大きさは内径１ｍｍ位から内径８ｍｍ程
度が好ましい。なおこのような射出部１４は射出部分の
みを、或いは前記手握部１２の係止溝１２１の部分から
射出孔１４までの先端部分を取り替え可能としておけ
ば、洗浄したい部位に応じた使用も可能となる。The shape of the injection part 14 may be straight without providing an inclination in the injection direction with respect to the axis 20 in the direction of the water passage of the cleaning tool main body 1.
It is preferable to provide an inclination with respect to zero. FIG. 1A shows a case where no inclination is provided with respect to the axis 20.
This corresponds to the first aspect of the present invention. FIG.
(B) to (d) are configuration examples in which an inclination is provided with respect to the axis 20, and correspond to the invention described in claim 2. (B) is an example in which the inclination angle is linearly set to about 20 degrees, and (c) is an example in which the inclination angle is curved to about 60 degrees. In particular, the inclination angle should be about 1
It is preferable that the injection part 14 has a shape as shown in FIG. The cross section of the injection hole 141 is preferably circular, and the size is preferably about 1 mm to about 8 mm in inner diameter. It should be noted that such an injection portion 14 can be used in accordance with a portion to be cleaned if only the injection portion or the tip portion from the locking groove 121 of the handgrip portion 12 to the injection hole 14 is replaceable. Becomes

【００１９】以下に本発明にかかる洗浄具の作用につい
て説明する。接続部１１は給水ホースに繋がれ通常ホー
スの他端は水道水の蛇口に繋がれる。蛇口から注入され
た水道水は接続部１１の通水路を通って、一時的に手握
部１２の通水路２１に蓄積される。この水は次々に注入
される水道水の水圧によって水流変換器１５の分水孔１
５１を通過し、互いに直角な４方向の分水流に分散され
る。この４方向に分散された分水流は収束部１３の内部
に設けられた境界壁１６によって形成された４つの分水
路１８に導かれ、さらにその後半部１７に形成されたス
クリュー羽根部分に導かれて一本の回転流に生成され
る。Hereinafter, the operation of the cleaning tool according to the present invention will be described. The connecting part 11 is connected to a water supply hose, and the other end of the hose is usually connected to a tap water tap. Tap water injected from the faucet passes through the water passage of the connection portion 11 and is temporarily accumulated in the water passage 21 of the handgrip portion 12. This water is supplied to the water diversion hole 1 of the water flow converter 15 by the pressure of the tap water which is injected one after another.
After passing through 51, they are dispersed into water diversions in four directions perpendicular to each other. The diversion flows distributed in the four directions are guided to four diversion channels 18 formed by boundary walls 16 provided inside the converging portion 13, and further guided to screw blade portions formed in the latter half portion 17. Generated in one rotating flow.

【００２０】このようにして生成された一本のビーム状
の回転流は、射出部１４が洗浄具本体１の軸線２０に対
して曲線状に湾曲していても水流の乱れを生じることな
く、外部に一本のビーム状の流れとして射出させること
ができる。そのため、口腔内の洗浄に際して、洗浄した
い部位に直接圧力水を当てることができ、洗浄効果を高
めることができる。The single beam-shaped rotary flow generated in this manner does not cause water flow disturbance even if the injection section 14 is curved in a curved manner with respect to the axis 20 of the cleaning tool main body 1. It can be emitted outside as a single beam-like flow. Therefore, when washing the oral cavity, it is possible to directly apply pressurized water to the part to be washed, and the washing effect can be enhanced.

【００２１】なお、本構成例では水流方向を互いに直角
な４方向に分散し、収束部１３の内部に形成された回転
流生成部として４つの境界壁１６を設けた例を示した
が、本発明は当該構成例に限定されるものではなく、特
に給水ホースから注入された水流を３方向に分散する方
法であっても十分な効果が期待できる。また、４つ以上
に分散させて回転流を生成することも可能である。In this embodiment, the direction of water flow is dispersed in four directions perpendicular to each other, and four boundary walls 16 are provided as a rotating flow generating section formed inside the converging section 13. The invention is not limited to the configuration example, and a sufficient effect can be expected even with a method of dispersing the water flow injected from the water supply hose in three directions. It is also possible to generate a rotating flow by dispersing it into four or more.

【００２２】[0022]

【発明の効果】以上説明してきたように、本発明にかか
る口腔内洗浄具によれば、洗浄具本体の一端に形成され
た洗浄水注入口と水道の蛇口とをホースで直結し水道水
の圧力を利用して口腔内に洗浄水を射出するため、何ら
動力を必要とせず経済的であるだけでなく、歯や歯ぐき
と洗浄具との接触がないため歯や歯肉を痛めることがな
い。また射出される洗浄水は一本の細いビーム状の圧力
水流となっているため、歯肉に対するマッサージ効果が
期待できる。As described above, according to the intraoral cleaning device of the present invention, the cleaning water inlet formed at one end of the cleaning device main body is directly connected to the tap by a hose. The washing water is injected into the oral cavity by using the pressure, so that no power is required and it is not only economical, but also there is no contact between the teeth and gums and the washing tool, so that the teeth and gums are not damaged. In addition, since the cleaning water to be injected is a single narrow beam-like pressure water flow, a massage effect on the gum can be expected.

【００２３】さらに、請求項２に記載のように構成され
た洗浄具では、洗浄具本体の端部に形成される洗浄水射
出孔が内径がおよそ数ｍｍの細管に形成されているた
め、洗浄水射出孔先端の口腔内への挿入が容易であり、
また洗浄具本体の通水路方向軸線に対して、直線状に若
しくは曲線状に傾斜若しくは湾曲させて形成しても射出
する水流に乱れが生じないため、義歯と歯肉の間の隙間
や歯間の隙間に歯の裏側から直接洗浄水を射出でき、洗
浄がしやすくなる。また射出される一本のビーム状水流
の圧力を高めることができるため、歯垢等の除去に顕著
な効果を示す。Further, in the cleaning tool according to the second aspect, the cleaning water injection hole formed at the end of the cleaning tool main body is formed in a small tube having an inner diameter of about several mm. It is easy to insert the tip of the water injection hole into the oral cavity,
In addition, even when the cleaning tool body is formed to be inclined or curved in a straight line or a curved line with respect to the axis of the water passage direction, there is no disturbance in the water flow to be ejected. Cleaning water can be injected directly into the gap from the back of the tooth, making cleaning easier. Further, since the pressure of one beam-shaped water stream to be injected can be increased, a remarkable effect for removing plaque and the like is exhibited.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明にかかる口腔内洗浄具の外観図である。FIG. 1 is an external view of an intraoral cleaning tool according to the present invention.

【図２】本発明にかかる口腔内洗浄具の接続部と手握部
との接続方式を示す模式図である。FIG. 2 is a schematic diagram showing a connection method between a connection portion and a handgrip portion of the mouthwash device according to the present invention.

【図３】本発明にかかる口腔内洗浄具の軸線方向断面図
である。FIG. 3 is an axial cross-sectional view of the mouthwash device according to the present invention.

【図４】本発明にかかる口腔内洗浄具に使用される水流
変換器の斜視図（ａ）と底面図（ｂ）である。FIG. 4 is a perspective view (a) and a bottom view (b) of a water flow converter used in the mouthwashing tool according to the present invention.

【図５】本発明にかかる口腔内洗浄具のＡ−Ａ断面図で
ある。FIG. 5 is an AA cross-sectional view of the mouthwash device according to the present invention.

【符号の説明】[Explanation of symbols]

１ 口腔内洗浄具 １１ 接続部 １２ 手握部 １３ 収束部 １４ 射出部 １５ 水流変換器 １６ 境界壁 １７ 境界壁の後半部（スクリューバネ部分） １８ 分水路 ２０ 通水路方向軸線 １１１ 切り込み １１２ 注入口 １２１ 係止溝 １４１ 射出孔 １５１ 分水孔 DESCRIPTION OF SYMBOLS 1 Intraoral washing | cleaning tool 11 Connection part 12 Handhold part 13 Convergence part 14 Ejection part 15 Water flow converter 16 Boundary wall 17 The latter half of a boundary wall (screw spring part) 18 Water diversion channel 20 Water flow direction axis 111 Notch 112 Injection 121 Lock groove 141 Injection hole 151 Water diversion hole

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 一端が洗浄水注入口となり、他端が前記
洗浄水注入口の断面積より小さな断面積に形成された洗
浄水射出孔となる通水路が内部に形成された洗浄具本体
と、 この洗浄具本体の前記通水路内ほぼ中央近傍に設けら
れ、前記注入口から注入された洗浄水を複数本の分水流
に分散させる水流方向変換部と、 前記洗浄具本体の前記通水路内にあって、前記水流方向
変換部と前記洗浄水射出孔との間に設けられ、複数本に
分散された前記分水流を一本の回転流に生成する回転流
生成部とからなる口腔内洗浄具。A cleaning tool body having a water passage formed at one end as a cleaning water inlet and a cleaning water injection hole formed at the other end with a cross-sectional area smaller than the cross-sectional area of the cleaning water inlet; A water flow direction changing unit that is provided near the center of the cleaning tool main body in the water passage and disperses the cleaning water injected from the injection port into a plurality of water separation flows; And a rotary flow generating unit that is provided between the water flow direction changing unit and the cleaning water injection hole and that generates a plurality of the divided water flows into a single rotary flow. Utensils. 【請求項２】 前記洗浄水射出孔を内径およそ数ｍｍの
細管に形成し、その射出方向を前記洗浄具本体の通水路
方向軸線に対して、直線状に若しくは曲線状に傾斜させ
たことを特徴とする請求項１に記載の口腔内洗浄具。2. The cleaning water injection hole is formed in a thin tube having an inner diameter of about several mm, and its injection direction is inclined linearly or curvedly with respect to an axis of a water passage direction of the cleaning tool main body. The oral cavity cleaning device according to claim 1, characterized in that: