JP3560019B2

JP3560019B2 - Water spout

Info

Publication number: JP3560019B2
Application number: JP29602599A
Authority: JP
Inventors: 啓之佐伯; 義弘松村; 和彦杉浦
Original assignee: 株式会社ケーブイケー
Priority date: 1999-10-18
Filing date: 1999-10-18
Publication date: 2004-09-02
Anticipated expiration: 2019-10-18
Also published as: JP2001112661A

Description

【０００１】
【発明の属する技術分野】
本各発明は、各々内部に通水路が設けられると共に互いに挿嵌接続された第一部材と第二部材とを有する吐水具に関する。
【０００２】
【従来の技術】
例えば、シャワーヘッド等の吐水具の中には、図６に示すように、本出願人が提案した吐水具（特開平１１−１０４５２４）１０がある。この吐水具１０は、握り部を有する本体部１１と、吐水口を有し、本体部１１とは個別に形成されると共に本体部１１に一体化された頭部３１と、止水機構７０とを備えている。
【０００３】
止水機構７０は、本体部１１内に形成された１次側の通水路１２と、頭部３１内に形成された２次側の通水路３２との間を開閉するものであり、ボール弁７１と、弁ケース７２と、開閉装置７３とを備えている。以下、この止水機構７０について詳細に説明する。
【０００４】
先ず、開閉装置７３は本体部１１を横断する状態に配置されており、別体の開ボタン７５と閉ボタン７６とを略ピストン状に連結して構成されている。また、開ボタン７５及び閉ボタン７６は、各々操作端を本体部１１外に露呈させると共に、本体部１１側面に穿設された貫通孔７７、７８にＵパッキンを介して水密状且つ摺動可能に挿入配置されている。さらに、開ボタン７５の反操作端には当接鍔７９が設けられ、閉ボタン７６の反操作端にはこの当接鍔７９が当接する被当接鍔８０が設けられている。
【０００５】
そして、当接鍔７９には、閉ボタン７６側に開口するシリンダー穴８１が設けられ、被当接鍔８０には、開ボタン７５側に突出するピストン部８２が設けられると共に、シリンダー穴８１にピストン部８２が摺動可能に挿入されている。また、開ボタン７５の当接鍔７９と、閉ボタン７６の中間鍔８３との間には、開ボタン７５及び閉ボタン７６を近接させるように付勢するトーションスプリング８５が掛け渡されている。さらに、開ボタン７５のストッパー８４は取付孔７７よりも大径に形成され、開ボタン７５の本体部１１外への露呈量を一定量以下に規制する。
【０００６】
弁ケース７２は略容器形状を備え、頭部３１に設けられた弁口８６を開閉するためのボール弁７１を保持しており、このボール弁７１はスプリングによって弁口８６方向へと付勢されている。そして、この弁ケース７２には、開閉装置７３に加えられた駆動を伝達するための切換アーム８８が一体的に設けられている。即ち、この切換アーム８８は、その突起部８９を閉ボタン７６の被当接鍔８０と中間鍔８３との間に係止させ、開閉装置７３と一体で駆動可能とされている。
【０００７】
以上の止水機構７０においては、開ボタン７５に押圧操作、即ち、吐水操作を施すと、当接鍔７９によって被当接鍔８０が押圧され、閉ボタン７６が図６（ｂ）の図示矢印Ａに示す開弁方向へと移動する。これにより、切換アーム８８及びこれと一体の弁ケース７２が開弁方向へと移動し、弁口８６が開放される。一方、この吐水状態にあるときに、閉ボタン７６に押圧操作、即ち、止水操作を施すと、切換アーム８８及び弁ケース７２が、図６（ｂ）の図示矢印Ｂに示す閉弁方向へと移動して弁口８６が閉塞される。同時に、被当接鍔８０によって、当接鍔７９が押圧され、開ボタン７５は閉弁方向へと移動し、本体部１１外への露呈量を増加させる。但し、この開ボタン７５の露呈量は、そのストッパー８４を本体部１１の内壁面に当接させるまでの量に規制される。
【０００８】
また、この吐水具１０は、止水時における「圧逃がし機能」を備えている。即ち、この吐水具１０が止水状態にあるときに、開ボタン７５及び閉ボタン７６には、１次側の通水路１２内の給水圧が加わる。しかし、開ボタン７５はそのストッパー８４によって露呈量を規制されるため、結局、閉ボタン７６のみが、トーションスプリング８５の付勢力に対抗して開弁方向に僅かに移動する。このため、切換アーム８８及び弁ケース７２も、開弁方向に移動し、弁口８６が僅かに開放されて１次側の通水路１２内の給水圧が逃がされる。そして、この逃がしが完了すると、閉ボタン７６がトーションスプリング８５の付勢力によって閉弁方向に自動復帰し、弁口８６が閉塞状態となる。
【０００９】
【発明が解決しようとする課題】
この従来例のように、吐水具１０を、本体部１１及び頭部３１のように複数の部材の挿嵌接続品として構成すると、以下のような問題を生ずる。即ち、この種の吐水具１０では、通水時に、本体部１１及び頭部３１の各々の通水路に給水圧（動水圧）が加わるが、隣接配置される本体部１１及び頭部３１間の接続固定を接着等を頼りに行っているに過ぎない。このため、吐水具１０の使用期間の経過に伴い、頭部３１が本体部１１より序々に抜脱しようとする挙動を示し、接続部分に漏水を生じたり、頭部３１が完全に抜脱する、等の種々の不具合を生ずることがある。
【００１０】
特に、上記従来例の如く、止水機構７０を内蔵する場合には、このような不具合を生ずる可能性が高くなる。即ち、止水機構７０に止水操作が施されると、頭部３１に給水圧（静水圧）が加わることになる。例えば、図６（ｂ）に示す態様においては、頭部３１における弁口８６周囲等が、１次側の通水路１２中の給水圧（静水圧）を受ける受圧面９０となるため、頭部３１が抜脱方向へと移動し易くなる。従って、弁口８６が図示矢印Ｃの方向へと移動し、ボール弁７１がこの弁口８６に的確に着座することが困難となり、止水機構７０に止水操作を施しても完全な止水状態が得られなかったり、頭部３１が本体部１１から抜脱する可能性が高くなるからである。
【００１１】
本各発明はこのような実状に鑑みてなされたものであり、その目的とするところは、複数の部材を挿嵌接続して構成しつつも、各部材間の接続固定状態を確実、堅固なものとした吐水具を提供することを目的とする。
【００１２】
【課題を解決するための手段】
以上の課題を解決するために、先ず、請求項１の発明が採った手段は、「各々内部に通水路が設けられると共に互いに挿嵌接続された第一部材と第二部材とを有する吐水具であって、前記第一部材及び第二部材とは別体の抜け止め部材により第一部材及び第二部材の相互の抜け止めを行う吐水具であり、前記抜け止め部材は、前記第一部材の雄型の接続部及び前記第二部材の雌型の被接続部の挿嵌部分、若しくは、前記第一部材の雌型の接続部及び前記第二部材の雄型の被接続部の挿嵌部分に介在されると共に、前記抜け止め部材の第１係止片を前記第二部材の係止溝に係止させ、前記抜け止め部材の第２係止片を前記第一部材の係止溝に係止させて、前記第一部材及び前記第二部材の相互の抜け止めを行うことを特徴とする吐水具」である。
請求項２の発明が採った手段は、「各々内部に通水路が設けられると共に互いに挿嵌接続された第一部材と第二部材とを有する吐水具であって、前記第一部材及び第二部材とは別体の抜け止め部材により第一部材及び第二部材の相互の抜け止めを行う吐水具であり、前記抜け止め部材は、前記第一部材の雄型の接続部及び前記第二部材の雌型の被接続部の挿嵌部分、若しくは、前記第一部材の雌型の接続部及び前記第二部材の雄型の被接続部の挿嵌部分に介在されると共に、前記抜け止め部材を前記第一部材若しくは前記第二部材の一方に固定し、前記抜け止め部材の係止片を前記第一部材若しくは前記第二部材の他方の係止溝に係止させて、前記第一部材及び前記第二部材の相互の抜け止めを行うことを特徴とする吐水具」である。
【００１３】
請求項１〜２の発明では、挿嵌接続される第一部材と第二部材とを、別個の抜け止め部材を用いて固定するため、接続固定状態が確実、堅固なものとなり、互いの不用意な抜脱を的確に防止できる。ここで、本発明の「吐水具」には、（１）シャワー吐水を行うシャワーヘッドのみならず、（２）通常吐水を行う吐水ヘッド、（３）口腔用や洗眼用の吐水ヘッド等の種々の態様の吐水具が含まれる。また、本発明の「吐水具」には、前述の「止水機構」等の各種機器を内蔵するか否かを問わない。
【００１４】
本吐水具を構成する「第一部材」及び「第二部材」は、各々一体品のものに限らず、種々の部材が組み付けられてなるものであってもよい。
【００１５】
本発明の「抜け止め部材」としては、例えば、挿嵌接続される第一部材又は第二部材の一方に螺着されて他方を係止する止めネジや、第一部材及び第二部材間に掛け渡されるフック等の他に、第一部材及び第二部材の双方に係止されるもの、一方に固定され他方に係止されるもの等を例示できる。また、本発明において、第一部材と第二部材との接続固定を、抜け止め部材のみによって行ってもよいが、この抜け止め部材と共に接着剤等を併用すると、接続固定の信頼性がより一層、向上する。
【００１６】
次に、請求項３の発明が採った手段は、「前記第一部材は握り部を有する本体部であり、前記第二部材は吐水口を有する頭部であることを特徴とする請求項１又は請求項２の何れかに記載の吐水具」である。
【００１７】
請求項３の発明は以下の観点に鑑みてなされたものである。即ち、一般に、シャワーヘッド等の吐水具においては、内部の流路が屈曲されている。また、意匠性や利便性の確保から、その外形も複雑な形態となっている。このような吐水具を例えば樹脂等により一体品として成形するには、大きな手間を要する。そこで、吐水具の頭部と本体部とを別体とすることが考えられる。しかし、この場合には、前述の如く、頭部が本体部より抜脱し易くなる等の種々の不具合を生ずる。一方、請求項３の発明によると、抜け止め部材の作用によって、この不具合を解消できるため、本体部と頭部とを積極的に別体にでき、複雑な内部流路や外形の吐水具を実現することができる。
【００１８】
次に、請求項１の発明が採った手段は、「各々内部に通水路が設けられると共に互いに挿嵌接続された第一部材と第二部材とを有する吐水具であって、前記第一部材及び第二部材とは別体の抜け止め部材により第一部材及び第二部材の相互の抜け止めを行う吐水具であり、前記抜け止め部材は、前記第一部材の雄型の接続部及び前記第二部材の雌型の被接続部の挿嵌部分、若しくは、前記第一部材の雌型の接続部及び前記第二部材の雄型の被接続部の挿嵌部分に介在されると共に、前記抜け止め部材の第１係止片を前記第二部材の係止溝に係止させ、前記抜け止め部材の第２係止片を前記第一部材の係止溝に係止させて、前記第一部材及び前記第二部材の相互の抜け止めを行うことを特徴とする吐水具」である。
【００１９】
この請求項１の発明では、抜け止め部材が、隣接配置される第一部材及び第二部材の挿嵌部分に介在され、外部に露呈しないため、吐水具の外観をより好適なものとできる。
【００２０】
次に、請求項２の発明が採った手段は、「各々内部に通水路が設けられると共に互いに挿嵌接続された第一部材と第二部材とを有する吐水具であって、前記第一部材及び第二部材とは別体の抜け止め部材により第一部材及び第二部材の相互の抜け止めを行う吐水具であり、前記抜け止め部材は、前記第一部材の雄型の接続部及び前記第二部材の雌型の被接続部の挿嵌部分、若しくは、前記第一部材の雌型の接続部及び前記第二部材の雄型の被接続部の挿嵌部分に介在されると共に、前記抜け止め部材を前記第一部材若しくは前記第二部材の一方に固定し、前記抜け止め部材の係止片を前記第一部材若しくは前記第二部材の他方の係止溝に係止させて、前記第一部材及び前記第二部材の相互の抜け止めを行うことを特徴とする吐水具」である。
【００２１】
この請求項２の発明においても、抜け止め部材が隣接配置される第一部材及び第二部材の挿嵌部分に介在され、外部に露呈しないため、吐水具の外観をより好適なものとできる。一方、請求項１の発明と異なり、抜け止め部材を第一部材又は第二部材の一方に固定するため、第一部材と第二部材との接続状態がより一層、堅固なものとなる。尚、抜け止め部材の固定手段としては、ネジ止め、螺着等の種々の手段が例示できる。
【００２４】
次に、請求項４の発明が採った手段は、「第一部材の通水路と第二部材の通水路との間に止水機構を備えることを特徴とする請求項１から請求項３の何れかに記載の吐水具」である。
【００２５】
前述のように、第一部材の通水路と第二部材の通水路との間に止水機構を内蔵する吐水具では、止水時に、２次側の通水路を構成する部材に給水圧が加わる場合があり、第一部材と第二部材とのより堅固な抜け止めが望まれる。そこで、第一部材及び第二部材とは別個の抜け止め部材を採用することにより、より堅固な抜け止めを実現でき、止水機構を有する吐水具であっても、第一部材と第二部材とが堅固に接続固定された吐水具を実現できる。
【００２６】
尚、請求項４の発明の止水機構は、前述の従来例のように、「止水時における圧逃がし機能」を備えるか否かを特に問わないが、このように止水機能以外の他の機能を備える場合には、請求項４の発明の意義がより大きなものとなる。
【００２７】
即ち、止水機能の他、種々の機能を設けようとすると、吐水具の内部において、様々な部材を組み込んで収容するための空間が大きくなる。すると、止水機構の二次側の通水路を形成する部材において、止水時の給水圧が加わる受圧面積が大きくなり、止水時には、互いに挿嵌接続された部材を抜脱させようとする大きな応力が加わることになる。そこで、抜け止め部材を採用することで、このような吐水具においても、部材間の十分な接続固定状態を得ることができる。
【００２８】
【発明の実施の形態】
次に、本各発明に係る「吐水具」の実施の形態を、図面に従って詳細に説明する。
【００２９】
先ず、図１に示す第１例によって、請求項１及び請求項４の発明に係る吐水具１０の一具体例を説明する。この吐水具１０は、請求項３の発明に従い、第一部材である本体部１１と、第二部材である頭部３１を備えると共に、これらを抜け止め部材５０により抜け止め固定して構成されるものである。尚、第１例では、吐水具１０を２つの部材である本体部１１及び頭部３１の接続品として構成する態様を例示するが、３つ以上の部材の接続品として構成することもできる。例えば本体部１１について、頭部３１側部分を構成する部材と、ホルダー等に支持される基端側部分を構成する部材とに分割形成し、これら複数の部材を一体化してなるものとしてもよい。これら複数の部材を一体化するに際しても、本各発明における抜け止め部材を適用することができる。この点に関しては、後述する第２例〜第６例においても同様である。
【００３０】
第１例の本体部１１は、内部空間を給水源に連絡される通水路１２とすると共に、頭部３１側端部の外形を段差状に小さくして接続部１３を構成している。また、接続部１３の上方及び下方の内壁面には係止溝１４が設けられ、接続部１３の外壁面に設けられた周回溝にはシール部材１６がはめ込まれている。
【００３１】
一方、第１例の頭部３１は、内部空間を図示しない吐水口へと通じる通水路３２とすると共に、本体部１１側端部によって前記接続部１３に対応する被接続部３３を構成している。また、被接続部３３の奥側の内壁面からは、枠壁３４が略板枠状に突出し、枠壁３４の内縁部からは挿入部３５が被接続部３３の開口方向へと略容器状に突出している。この挿入部３５は、接続部１３内へと遊入可能な外形を備えており、上方及び下方の外壁面に係止溝３６を形成している。また、挿入部３５の底面には、通水路３２を頭部３１外へと開放する貫通孔３７が設けられ、この貫通孔３７の開口側にシール部材１８が装着されて弁口８６を構成している。
【００３２】
この弁口８６は、例えば、図示破線に示すボール弁７１によって開閉され、本体部１１の通水路１２と、頭部３１の通水路３２との連通・遮断を行うものである。このボール弁７１を構成要素とする止水機構７０は、請求項４の発明の一具体例を構成するものであり、例えば、図６（ｂ）に示すように、このボール弁７１と共に、弁ケース７２と、開閉装置７３を主体に構成されるものを用いることができる。但し、請求項４の発明の止水機構は、「止水時の圧逃がし機能」を備えるものに限定されない。また、請求項４の発明の止水機構はボール弁方式のものに限定されず、例えば、「互いに摺接移動して流路の開閉を行う摺接弁方式」、「弁口に対して弁体を進退させて流路の開閉を行うリフト弁方式」等の他の形式の止水機構を選択することもできる。さらに、請求項４の発明の止水機構は、「吐止水の選択機能」のみならず、「流量調節機能」、若しくは、「通常吐水・シャワー吐水間の選択、泡末吐水・泡末を伴わない吐水間の選択等の吐水態様の選択機能」等の他の機能を備えてもよい。尚、これらの点に関しては、以下に述べる第２例〜第６例においても同様である。
【００３３】
第１例の抜け止め部材５０は略枠形状に形成され、一方の開口の上下より一対の第１係止片５１を略ハの字状に突出させ、他方の開口の上下より２対の第２係止片５２を略逆ハの字状に突出させている。この抜け止め部材５０は、先ず、他方の開口側より挿入部３５に外嵌装着され、その第１係止片５１が挿入部３５の上下の係止溝３６に係止される。この状態で、接続部１３を被接続部３３に圧入すると、第２係止片５２が接続部１３の係止溝１４に係止されると共に、抜け止め部材５０の枠形部分が挿入部３５の外壁面と、接続部１３の内壁面とで挟持される。
【００３４】
このように、挿入部３５及び接続部１３の双方に抜け止め部材５０が係止され、挿入部３５及び接続部１３相互の抜け止めが図られるため、通水路１２から頭部３１へと抜脱方向への給水圧が加わっても、頭部３１が抜脱することはない。即ち、第１例では、接続部１３と挿入部３５の挿嵌部分に抜け止め部材５０が介在され、この抜け止め部材５０を接続部１３及び挿入部３５の双方、即ち、本体部１１及び頭部３１の双方に係止することによって、本体部１１及び頭部３１相互の抜け止めが図られる。
【００３５】
次に、図２に示す第２例によって、特許請求の範囲から除外した参考的な発明（以下、「参考発明１」という。）及び請求項４の発明に係る吐水具１０の他の具体例を説明する。この吐水具１０も、第１例と同様に、第一部材である本体部１１及び第二部材である頭部３１を備えると共に、本体部１１及び頭部３１を抜け止め部材５０により抜け止め固定して構成されるものである。但し、第２例においては、接続部１３の外壁面の上下に係止溝１４が設けられ、頭部３１には係止溝が設けられていない。また、抜け止め部材５０は、一方の開口の上下より一対の第１係止片５１を突出させ、他方の開口の上下より、略三角形状の第２係止片５２を多数突出させている。その他の点に関しては、前述の第１例と同様である。
【００３６】
この第２例の抜け止め部材５０は、先ず、一方の開口側より接続部１３に外嵌装着され、第１係止片５１が係止溝１４に係止される。この状態で、接続部１３を被接続部３３に圧入すると、第２係止片５２の先端側が反挿入方向に屈曲しながら挿入部３５の外壁面に係止されると共に、抜け止め部材５０の枠形部分が、被接続部３３の内壁面と接続部１３の外壁面とで挟持される。これにより、接続部１３及び被接続部３３の双方に抜け止め部材５０が係止されるため、通水路１２から頭部３１へと抜脱方向への給水圧が加わっても、頭部３１が抜脱することはない。
【００３７】
尚、第１例及び第２例においては、抜け止め部材５０を本体部１１若しくは頭部３１の一方に係止した後に、本体部１１及び頭部３１の挿嵌時に、本体部１１若しくは頭部３１の他方に係止する態様を例示したが、請求項１の発明では、この挿嵌時に、抜け止め部材５０を本体部１１及び頭部３１の双方に同時に係止してもよい。また、第１例及び第２例においては、被接続部３３に挿入部３５を設けたが、接続部１３に挿入部３５を設けたり、接続部１３及び被接続部３３の双方より挿入部３５を省略し、接続部１３及び被接続部３３の間に抜け止め部材５０を介在させてもよい。さらに、第１例及び第２例では接続部１３を雄型とし、被接続部３３を雌型としたが、請求項１の発明においては、これらの雌雄を逆転してもよい。また、第１例及び第２例においては、枠型の抜け止め部材５０を例示したが、請求項３の発明では、略容器形状、断面コの字状、断面Ｌ字状、若しくはプレート状等の他の態様の抜け止め部材５０を用いることもできる。
【００３８】
ここで、図３に示す第３例は、プレート状の抜け止め部材５０を用いる態様を示している。即ち、この抜け止め部材５０は、図３（ａ）に示すように、略プレート状に形成され、対向する一組の端縁の一方に第１係止片５１、他方に第２係止片５２を各々折り返し状に設けると共に、これらの端縁の中間位置に第３係止片５３を折り返し状に設けている。
【００３９】
この抜け止め部材５０は、図３（ｂ）に示すように、接続部１３と挿入部３５とで構成される挿嵌部分において、上方及び下方に各々介在されている。即ち、上下の各抜け止め部材５０において、第２係止片５２が接続部１３の係止溝１４に係止され、第３係止片５３が挿入部３５の係止溝３６に係止されている。また、上方の抜け止め部材５０の第１係止片５１は、挿入部３５の突出端に設けられた段部１７に係止され、下方の抜け止め部材５０の第１係止片５１は、挿入部３５の突出端側に設けられた係止溝３８に係止されている。この第１係止片５１は、本体部１１と頭部３１との抜け止めに直接的に係わるものではない。即ち、この第１係止片５１は、接続部１３への挿入部３５の挿入に先駆けて挿入部３５に取り付けられた抜け止め部材５０を保持させるためのものである。挿入部３５に取り付けられた抜け止め部材５０は、接続部１３への挿入部３５の挿入に際して、その第１係止片５１を挿入部３５の段部１７や係止溝３８に係止させることにより、挿入部３５に対してズレが生じることなく挿入部３５と共に接続部１３に挿入され、第２係止片５２を接続部１３の係止溝１４に的確に係止させる。この第３例に示すように、形状・構造等が単純な略プレート状の抜け止め部材５０を用いて、本体部１１及び頭部３１相互の抜け止めを図ることもできる。
【００４０】
尚、第１例〜第３例では、本体部１１及び頭部３１の挿嵌部分における上方及び下方の部分に係止部分を構成する態様を例示したが、請求項１の発明では、この挿嵌部分の上下左右の部分より選ばれる１個所から４個所のうちの任意の個所に係止部分を設けることができる。さらに、第１例〜第３例では、本体部１１、頭部３１、挿入部３５として略断面矩形枠状の断面形状を備えるものを例示したが、略円形枠状、略楕円枠状、略三角枠状、若しくは５角以上の多角枠形状等の種々の断面形状を備えたものに対しても、請求項１の発明を適用することができる。特に、これらの断面形状が真円枠状等の軸心周りに回転対称な形状を備える場合にも、第１例及び第３例の如く、本体部１１及び頭部３１の各々に設けられた係止溝（１４、３６等）に抜け止め部材５０の係止片（５１、５２、５３）が一義的に係止される態様によると、この抜け止め部材５０によって、本体部１１及び頭部３１相互間の正確な位置決めを行うことができる点で大きな意義を有している。
【００４１】
次に、図４に示す第４例によって、請求項２及び請求項４の発明に係る吐水具１０の一具体例を説明する。この吐水具１０も、請求項３の発明に従い、第一部材である本体部１１及び第二部材である頭部３１を備えると共に、本体部１及び頭部３１を抜け止め部材５０により抜け止め固定して構成されるものである。
【００４２】
第４例の本体部１１としては、第１例の本体部１１と同様なものを用いている。また、第４例の頭部３１としては、内部空間を通水路３２とし、本体部１１側の端部によって被接続部３３を構成すると共に、被接続部３３の奥側に隔壁３９を略内蓋状に設けている。さらに、この隔壁３９からは、突出端に弁口８６を構成すると共に内部空間を通水路３２に連通させた通水用筒状部４０と、軸方向に雌ネジ部４１を形成した固定用筒状部４３とが、被接続部３３の開口方向へと突出している。尚、第４例に示す弁口８６の開閉も、例えば、図６（ｂ）に示す、ボール弁７１と、弁ケース７２と、開閉装置７３を主体に構成される止水機構７０によって行うことができる。
【００４３】
第４例の抜け止め部材５０は略容器形状を備え、開口部側の外壁面上下より、断面略三角形状の係止つめ５６を突出させ、底面部には大小２つの挿通孔５７、５８を開口させている。この抜け止め部材５０は、その開口部側より被接続部３３内へと遊入され、大型の挿通孔５７に通水用筒状部４０を挿嵌して弁口８６を底面部より露呈させると共に、固定用筒状部４３の雌ネジ部４１を小型の挿通孔５８に位置合わせする。そして、小型の挿通孔５８を通じて雌ネジ部４１にビス５９を螺合すると頭部３１に固定される。
【００４４】
さらに、被接続部３３の内壁面と抜け止め部材５０の外壁面との間の間隙に接続部１３を挿入し、各係止片つめ５６を本体部１１の対応する係止溝１４に係止することにより、頭部３１は本体部１１に抜け止め固定されている。即ち、本第４例では、通水用筒状部４０の挿通孔５７への挿嵌と、ビス５９の挿通孔５８への挿通及び固定用筒状部４３への螺着によって、抜け止め部材５０が頭部３１に正確に位置合わせされると共に、ビス５９を用いた挟持固定により抜け止め部材５０が頭部３１に堅固に固定されている。そして、接続部１３を被接続部３３に挿嵌すると、抜け止め部材５０が接続部１３に係止され、本体部１１及び頭部３１相互の抜け止めが図られている。
【００４５】
尚、第４例では、抜け止め部材５０を頭部３１に固定し、本体部１１に係止したが、請求項２の発明においては、抜け止め部材５０を本体部１１に固定し、頭部３１に係止してもよい。また、抜け止め部材５０は、第１例及び第２例のような略枠形状を備えても、第３例のようなプレート状とされてもよいし、断面コの字状、若しくは断面Ｌ字状等の他の形状を備えてもよい。さらに、第４例においても、接続部１３を雄型とし、被接続部３３を雌型としたが、請求項２の発明においては、これらの雌雄を逆転してもよい。
【００４６】
また、第４例においても、本体部１１及び頭部３１の挿嵌部分における上方及び下方の部分に係止部分を構成する態様を例示したが、請求項２の発明では、この挿嵌部分の上下左右の部分より選ばれる１個所から４個所のうちの任意の個所に、係止部分を設けることができる。さらに、第４例においても、本体部１１、頭部３１、挿入部３５として略断面矩形枠状のものを例示したが、略円形枠状、略楕円枠状、略三角枠状、若しくは５角以上の多角枠形状等の種々の断面形状を備えたものに対して請求項４の発明を適用することもできる。特に、これらの断面形状が真円枠状等の軸心周りに回転対称な形状を備える場合にも、第４例の如く、抜け止め部材５０を本体部１１若しくは頭部３１の一方に位置決め固定し、他方に、係止つめ５６と係止溝１４との係止によって一義的に係止する態様によると、この抜け止め部材５０によって、本体部１１及び頭部３１相互間の正確な位置決めを行うことができる点で大きな意義を有している。
【００４７】
次に、図５（ａ）に示す第５例によって特許請求の範囲から除外した参考的な発明（以下、「参考発明２」という。）及び請求項４の発明に係る吐水具１０の一具体例を説明する。この吐水具１０も、請求項３の発明に従い、第一部材である本体部１１及び第二部材である頭部３１を備えると共に、本体部１１及び頭部３１を抜け止め部材５０により抜け止め固定して構成されるものである。
【００４８】
第５例の本体部１１は、係止溝１４の代わりに、接続部１３の上面及び下面に同心状の取付孔２０を備える点を除き、第１例の本体部１１と同様である。また、第５例の頭部３１は、係止溝３６の代わりに、被接続部３３及び挿入部３５の上下面に同心状の取付孔４４、４５を備える点を除き、第１例の頭部３１と同様である。さらに、第５例の抜け止め部材５０は、ピンを用いて構成されている。尚、第５例においても、頭部３１に設けられた弁口８６の開閉を、例えば、図６（ｂ）に示す、ボール弁７１と、弁ケース７２と、開閉装置７３を主体に構成される止水機構７０によって行うことができる。
【００４９】
第５例では、接続部１３を被接続部３３に挿入すると共に接続部１３に挿入部３５を挿入すると、各取付孔２０、４４、４５が位置合わせされる。そして、最上方の取付孔４４より抜け止め部材５０の軸部を挿入して、取着固定すると、本体部１１及び頭部３１は抜け止め固定された状態となる。尚、抜け止め部材５０の固定は、接着、螺着等の方法を用いて行うことができる。
【００５０】
また、参考発明２においては、図５（ｂ）の第６例に示すように、抜け止め部材５０を、本体部１１及び頭部３１の双方に同時に係止するようにしてもよい。この第６例では、抜け止め部材５０が、段差蓋状のキャップ部６０と、キャップ部６０下面より左右に突出する係止片６１とを備えている。また、本体部１１の接続部１３の上面には、キャップ部６０の上半部を嵌入可能な段差状の取付孔２２が設けられている。さらに、この取付孔２２の内壁面より略リング状に突出する鍔部２３には、係止片６１を通過可能な２つの切り欠き２５が対向状に設けられている。また、被接続部３３からは略板状の挿入部３５が突出し、この挿入部３５にはキャップ部６０の下半部を嵌入可能な取付孔４７が設けられている。そして、この取付孔４７にも、係止片６１を通過可能な２つの切り欠き４８が対向状に設けられている。尚、第６例の挿入部３５は頭部３１に対して一体的に設けられてもよいし、頭部３１を成形する際にインサートされる別体の板状物等を用いて構成されてもよい。
【００５１】
この第６例では、挿入部３５を含む被接続部３３を、接続部１３内に挿入し、頭部３１及び本体部１１を挿嵌すると、取付孔２２及び取付孔４７が位置合わせされる。このとき、切り欠き２５と、切り欠き４８も位置合わせされるため、抜け止め部材５０は、その係止片６１をこれらの切り欠き２５、４８によって逃がしながら、取付孔２２及び取付孔４７に嵌入される。そして、キャップ部６０の上面の操作溝６２に工具、コイン等を差し込んで、抜け止め部材５０を回転させると、係止片６１の両端が挿入部３５の下面に係止される。即ち、この第６例では、キャップ部６０を接続部１３の上面側に圧着固定すると共に係止片６１を挿入部３５の下面に係止し、キャップ部６０と係止片６１とで接続部１３及び挿入部３５を挟持することで、頭部３１及び本体部１１の抜け止めが図られる。尚、この第６例のように、抜け止め部材５０を取り外すと、取付孔２２及び取付孔４７が各々大きく露呈する態様では、これらの取付孔２２、４７を通じて、止水機構７０の組み付けやメンテナンス等を行うこともできる。
【００５２】
尚、この第５例及び第６例においては、頭部３１及び本体部１１の挿嵌部分の上面側を中心に抜け止め部材５０を取着したが、参考発明２においては、この挿嵌部分の下面側、側面側、若しくは、上面側、下面側、側面側より選ばれる２個所以上において抜け止め部材５０を取着してもよい。また、参考発明２においても、第５例及び第６例に示す接続部１３及び被接続部３３と、雌雄が逆転した接続部１３及び被接続部３３を用いてもよい。さらに、第５例及び第６例においても、本体部１１及び頭部３１として略断面矩形枠状のものを例示したが、略円形枠状、略楕円枠状、略三角枠状、若しくは５角以上の多角枠形状等の種々の断面形状を備えたものに対して参考発明２を適用することができる。また、挿入部３５も第５例の略断面矩形枠状や、第６例の略板形状に限定されない。特に、これらの断面形状が真円枠状等の軸心周りに回転対称な形状を備える場合にも、請求項５の発明によると、本体部１１及び頭部３１の取付孔（２０、２２、４４、４５、４７）を互いに連通状態に位置合わせして抜け止め部材５０を取着するため、この抜け止め部材５０によって、本体部１１及び頭部３１相互間の正確な位置決めを行うことができる点で大きな意義を有している。
【００５３】
尚、上述した第１例〜第６例においては、請求項１、請求項２、参考発明１及び参考発明２における抜け止め部材５０の何れか一つを適用した吐水具１０について述べたが、請求項１、請求項２、参考発明１及び参考発明２における抜け止め部材５０の複数を併用してもよい。
【００５４】
【発明の効果】
以上のように、本各発明によると、複数の部材を挿嵌接続して構成しつつも、各部材間の接続固定状態を確実、堅固なものとした吐水具が得られる。
【図面の簡単な説明】
【図１】（ａ）は第１例の分解斜視図、（ｂ）は第１例の縦断面図である。
【図２】（ａ）は第２例の分解斜視図、（ｂ）は第２例の縦断面図である。
【図３】（ａ）は第３例に係る抜け止め部材の斜視図、（ｂ）は第３例の縦断面図である。
【図４】（ａ）は第４例の分解斜視図、（ｂ）は第４例の縦断面図である。
【図５】（ａ）は第５例の分解斜視図、（ｂ）は第６例の分解斜視図である。
【図６】（ａ）は従来例に係る吐水具の縦断面図、（ｂ）は従来例及び請求項６の発明が備える止水機構の一例を示す平面横断面図である。
【符号の説明】
１０；吐水具、１１；本体部（第一部材）、１２；通水路、１３；接続部、１４；係止溝、１６；シール部材、１７；段部、１８；シール部材、２０；取付孔、２２；取付孔、２３；鍔部、２５；切り欠き、３１；頭部（第二部材）、３２；通水路、３３；被接続部、３４；枠壁、３５；挿入部、３６；係止溝、３７；貫通孔、３８；係止溝、３９；隔壁、４０；通水用筒状部、４１；雌ネジ部、４３；固定用筒状部、４４、４５；取付孔、４７；取付孔、４８；切り欠き、５０；抜け止め部材、５１；第１係止片、５２；第２係止片、５３；第３係止片、５６；係止つめ、５７、５８；挿通孔、５９；ビス、６０；キャップ部、６１；係止片、６２；操作溝、７０；止水機構、７１；ボール弁、７２；弁ケース、７３；開閉装置、７５；開ボタン、７６；閉ボタン、７７、７８；貫通孔、７９；当接鍔、８０；被当接鍔、８１；シリンダー穴、８２；ピストン部、８３；中間鍔、８４；ストッパー、８５；トーションスプリング、８６；弁口、８８；切換アーム、８９；突起部、９０；受圧面。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a water spout having a first member and a second member which are provided with a water passage therein and which are inserted and connected to each other.
[0002]
[Prior art]
For example, among water spouting devices such as a shower head, there is a water spouting device (JP-A-11-104524) 10 proposed by the present applicant, as shown in FIG. The water discharging device 10 includes a main body 11 having a grip portion, a water outlet, and a head 31 formed separately from the main body 11 and integrated with the main body 11, a water stopping mechanism 70, It has.
[0003]
The water stop mechanism 70 opens and closes between the primary water passage 12 formed in the main body 11 and the secondary water passage 32 formed in the head 31, and includes a ball valve. 71, a valve case 72, and an opening / closing device 73. Hereinafter, the water stopping mechanism 70 will be described in detail.
[0004]
First, the opening / closing device 73 is disposed so as to cross the main body 11, and is configured by connecting separate open buttons 75 and close buttons 76 in a substantially piston shape. In addition, the open button 75 and the close button 76 have their operation ends exposed to the outside of the main body 11 and can be slid and watertight through through holes 77 and 78 formed in the side surface of the main body 11 through U packing. It is inserted and arranged. Further, a contact flange 79 is provided at a non-operation end of the open button 75, and a contact flange 80 to which the contact flange 79 contacts is provided at a non-operation end of the close button 76.
[0005]
The contact flange 79 is provided with a cylinder hole 81 opening toward the close button 76, and the contact flange 80 is provided with a piston portion 82 projecting toward the open button 75, and The piston 82 is slidably inserted. A torsion spring 85 that urges the open button 75 and the close button 76 to be close to each other is stretched between the contact flange 79 of the open button 75 and the intermediate flange 83 of the close button 76. Further, the stopper 84 of the open button 75 is formed to have a larger diameter than the mounting hole 77, and regulates the amount of the open button 75 exposed to the outside of the main body 11 to a certain amount or less.
[0006]
The valve case 72 has a substantially container shape, and holds a ball valve 71 for opening and closing a valve port 86 provided on the head 31. The ball valve 71 is urged toward the valve port 86 by a spring. ing. The valve case 72 is integrally provided with a switching arm 88 for transmitting the drive applied to the opening / closing device 73. That is, the switching arm 88 locks the projection 89 between the abutted flange 80 of the close button 76 and the intermediate flange 83, and can be driven integrally with the opening / closing device 73.
[0007]
In the above water stopping mechanism 70, when a pressing operation is performed on the open button 75, that is, when a water discharging operation is performed, the contact flange 80 is pressed by the contact flange 79, and the close button 76 is pressed by the arrow shown in FIG. A moves in the valve opening direction indicated by A. As a result, the switching arm 88 and the valve case 72 integrated therewith move in the valve opening direction, and the valve port 86 is opened. On the other hand, when the closing button 76 is pressed, that is, subjected to the water stopping operation in the water discharging state, the switching arm 88 and the valve case 72 are moved in the valve closing direction indicated by the arrow B in FIG. And the valve port 86 is closed. At the same time, the contact flange 79 is pressed by the contact flange 80, and the open button 75 moves in the valve closing direction, thereby increasing the amount of exposure to the outside of the main body 11. However, the amount of exposure of the open button 75 is restricted to the amount until the stopper 84 comes into contact with the inner wall surface of the main body 11.
[0008]
Further, the water discharging device 10 has a “pressure relief function” at the time of stopping water. That is, when the water discharging device 10 is in the water stopped state, the water supply pressure in the water passage 12 on the primary side is applied to the open button 75 and the close button 76. However, since the amount of exposure of the open button 75 is regulated by the stopper 84, only the close button 76 eventually slightly moves in the valve opening direction against the urging force of the torsion spring 85. For this reason, the switching arm 88 and the valve case 72 also move in the valve opening direction, the valve port 86 is slightly opened, and the supply pressure in the water passage 12 on the primary side is released. When the release is completed, the closing button 76 is automatically returned in the valve closing direction by the urging force of the torsion spring 85, and the valve port 86 is closed.
[0009]
[Problems to be solved by the invention]
When the water discharging device 10 is configured as an insertion connection product of a plurality of members such as the main body 11 and the head 31 as in this conventional example, the following problem occurs. That is, in this type of water discharger 10, when water is supplied, water supply pressure (dynamic water pressure) is applied to each of the water passages of the main body 11 and the head 31, but between the main body 11 and the head 31 which are arranged adjacently. The connection is fixed only by adhesion or the like. For this reason, as the usage period of the water discharging device 10 elapses, the head 31 shows a behavior of gradually pulling out from the main body 11, causing water leakage at the connection portion, or the head 31 completely pulling out. , Etc., may occur.
[0010]
In particular, in the case where the water stop mechanism 70 is built in as in the above-described conventional example, the possibility of causing such a problem increases. That is, when a water stopping operation is performed on the water stopping mechanism 70, a water supply pressure (hydrostatic pressure) is applied to the head 31. For example, in the embodiment shown in FIG. 6B, the periphery of the valve port 86 in the head 31 becomes a pressure receiving surface 90 that receives a water supply pressure (hydrostatic pressure) in the primary-side water passage 12. 31 easily moves in the withdrawal direction. Accordingly, the valve port 86 moves in the direction of the arrow C in the drawing, and it becomes difficult for the ball valve 71 to properly seat on the valve port 86. Even if the water stopping mechanism 70 is subjected to the water stopping operation, complete water stopping is performed. This is because there is a high possibility that a state cannot be obtained or the head 31 comes off the main body 11.
[0011]
The present invention has been made in view of such a situation, and an object of the present invention is to form a plurality of members by inserting and connecting them, while ensuring the connection and fixing state between the members, and firmly. An object of the present invention is to provide an improved water spout.
[0012]
[Means for Solving the Problems]
In order to solve the above problems, first, a means adopted by the invention according to claim 1 is a water discharging device having a first member and a second member which are provided with water passages therein and which are inserted and connected to each other. And the first member and the second member are prevented from coming off from each other by a stopper member separate from the first member.A water spouting device, wherein the retaining member is a fitting portion of a male connecting portion of the first member and a female connecting portion of the second member, or a female connecting portion of the first member. And a stopper interposed between the male member to be connected to the second member and a first engagement piece of the retaining member engaged with an engaging groove of the second member. The second locking piece is locked in a locking groove of the first member to prevent the first member and the second member from coming off from each other.".
The means adopted by the invention of claim 2 is “a water spout having a first member and a second member, each having a water passage therein and being inserted and connected to each other, wherein the first member and the second member The member is a water discharging device for preventing the first member and the second member from coming off from each other by a separate stopper member, wherein the stopper member is a male connecting portion of the first member and the second member. The female connecting portion of the first member or the female connecting portion of the first member and the male connecting portion of the second member are interposed in the fitting portion and the retaining member Is fixed to one of the first member or the second member, and the locking piece of the retaining member is locked in the other locking groove of the first member or the second member, whereby the first member And the second member prevents the second member from coming off.
[0013]
Claim 1~ 2According to the invention, since the first member and the second member to be inserted and connected are fixed by using a separate retaining member, the connection and fixing state is secure and firm, and unintentional withdrawal from each other is prevented. It can be prevented exactly. Here, the "water spouting device" of the present invention includes (1) not only a shower head for spouting shower water, but also (2) a spouting head for normal water spouting, and (3) a water spouting head for oral cavity and eye wash. The water discharging device according to the aspect is included. Further, it does not matter whether or not various devices such as the above-mentioned "water stop mechanism" are incorporated in the "water discharging device" of the present invention.
[0014]
The “first member” and the “second member” constituting the present water discharging device are not limited to being one-piece products, and may be various members assembled.
[0015]
As the "retaining member" of the present invention, for example, a set screw that is screwed to one of the first member or the second member to be inserted and connected and locks the other, or between the first member and the second member In addition to a hook or the like that is hooked over, a hook that is locked by both the first member and the second member, and a hook that is fixed to one and locked by the other can be exemplified. Further, in the present invention, the connection and fixing of the first member and the second member may be performed only by the retaining member. However, when an adhesive or the like is used together with the retaining member, the reliability of the connection and fixing is further improved. ,improves.
[0016]
Next, claim3Means adopted by the invention of the present invention is characterized in that the first member is a main body having a grip portion, and the second member is a head having a water discharge portClaim 1 or claim 2Water spouting tool ".
[0017]
Claim3The invention has been made in view of the following viewpoints. That is, generally, in a water discharging device such as a shower head, an internal flow path is bent. In addition, the outer shape is also complicated in order to ensure design and convenience. In order to form such a water discharging device as an integral product using, for example, a resin, a great deal of time is required. Therefore, it is conceivable that the head of the water discharging device and the main body are separated. However, in this case, as described above, various problems occur, such as the head being easily pulled out of the main body. Meanwhile, claims3According to the invention, since this problem can be solved by the action of the retaining member, the main body and the head can be positively separated from each other, and a complicated internal flow path and a water spout having an outer shape can be realized. .
[0018]
Next, claim1Means adopted by the invention of "A water discharging device having a first member and a second member each having a water passage provided therein and being inserted and connected to each other, wherein the first member and the second member are separated from each other by a retaining member. A water spout for preventing the member and the second member from coming off from each other, wherein the stopper member is an insertion portion of a male connecting portion of the first member and a female connected portion of the second member, Alternatively, the first locking piece of the retaining member is interposed between the female fitting portion of the first member and the male fitting portion of the second member. Locking the second locking piece of the retaining member in the locking groove of the first member to lock the first member and the second member with each other to lock the locking member in the locking groove. Water spouting device".
[0019]
This claim 1According to the invention, since the retaining member is interposed between the inserted portions of the first member and the second member which are disposed adjacent to each other and is not exposed to the outside, the appearance of the water discharging device can be made more preferable.
[0020]
Next, claim2Means adopted by the invention of "A water discharging device having a first member and a second member each having a water passage provided therein and being inserted and connected to each other, wherein the first member and the second member are separated from each other by a retaining member. A water spout for preventing the member and the second member from coming off from each other, wherein the stopper member is an insertion portion of a male connecting portion of the first member and a female connected portion of the second member, Alternatively, the female member of the first member and the male member to be connected of the second member are interposed between the insertion portions of the female member and the retaining member is one of the first member or the second member. And the retaining piece of the retaining member is retained in the other retaining groove of the first member or the second member to prevent the first member and the second member from coming off from each other. Water spouting device characterized by that".
[0021]
This claim 2Also in the invention of the above, since the retaining member is interposed between the inserted portions of the first member and the second member which are arranged adjacent to each other and is not exposed to the outside, the appearance of the water discharging device can be made more suitable. Meanwhile, claims1Unlike the first invention, since the retaining member is fixed to one of the first member and the second member, the connection state between the first member and the second member is further strengthened. Various means such as screwing and screwing can be exemplified as means for fixing the retaining member.
[0024]
Next, claim4Means adopted by the invention of claim 1 is that "a water stop mechanism is provided between the water passage of the first member and the water passage of the second member."3According to any one of the above.
[0025]
As described above, in the water spout having a built-in water stopping mechanism between the water passage of the first member and the water passage of the second member, when water is stopped, the water supply pressure is applied to the members constituting the water passage on the secondary side. In some cases, it is desired that the first member and the second member be more firmly retained. Therefore, by employing a retaining member that is separate from the first member and the second member, a more secure retaining member can be realized, and even if the water discharging device has a water stopping mechanism, the first member and the second member are used. And a water spouting device firmly connected and fixed.
[0026]
In addition, the claim4The water stop mechanism of the invention of the invention does not particularly matter whether or not it has a `` pressure relief function at the time of water stop '' as in the conventional example described above, but in the case where it has other functions other than the water stop function as described above Claims4The invention has greater significance.
[0027]
That is, if various functions other than the water stopping function are to be provided, a space for incorporating and storing various members inside the water discharging device becomes large. Then, in the member forming the water passage on the secondary side of the water stopping mechanism, the pressure receiving area to which the water supply pressure at the time of water stopping is increased, and at the time of water stopping, the members inserted and connected to each other are withdrawn. Large stress will be applied. Therefore, by adopting the retaining member, it is possible to obtain a sufficiently connected and fixed state between the members even in such a spout.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the “water spouting device” according to the present invention will be described in detail with reference to the drawings.
[0029]
First, according to a first example shown in FIG.1And claims4A specific example of the water spout 10 according to the invention will be described. This water discharging device 103According to the present invention, a main body 11 as a first member and a head 31 as a second member are provided, and these are retained and fixed by a retaining member 50. Note that, in the first example, a mode in which the water discharging device 10 is configured as a connected product of the main body 11 and the head 31 which are two members is illustrated, but it may be configured as a connected product of three or more members. For example, the main body 11 may be divided into a member constituting the head 31 side portion and a member constituting the base end portion supported by the holder or the like, and these plural members may be integrated. . When integrating the plurality of members, the retaining member according to the present invention can be applied. This is the same in the second to sixth examples described later.
[0030]
In the main body 11 of the first example, the internal space is a water passage 12 connected to a water supply source, and the outer shape of the end on the head 31 side is reduced to a step-like shape to form the connection portion 13. In addition, locking grooves 14 are provided on inner wall surfaces above and below the connecting portion 13, and a sealing member 16 is fitted into a circumferential groove provided on an outer wall surface of the connecting portion 13.
[0031]
On the other hand, the head 31 of the first example is configured such that the internal space is a water passage 32 that leads to a water discharge port (not shown), and a connected portion 33 corresponding to the connecting portion 13 is formed by the end of the main body 11. I have. A frame wall 34 projects substantially in a frame shape from the inner wall surface on the back side of the connected portion 33, and an insertion portion 35 extends from the inner edge of the frame wall 34 in a substantially container-like shape in the opening direction of the connected portion 33. It protrudes. The insertion portion 35 has an outer shape that can be freely inserted into the connection portion 13, and has locking grooves 36 formed on upper and lower outer wall surfaces. A through hole 37 that opens the water passage 32 to the outside of the head 31 is provided on the bottom surface of the insertion portion 35, and the seal member 18 is attached to the opening side of the through hole 37 to form a valve port 86. ing.
[0032]
The valve port 86 is opened and closed by, for example, a ball valve 71 shown by a dashed line in the figure, and communicates and shuts off the water passage 12 of the main body 11 and the water passage 32 of the head 31. The water stop mechanism 70 including the ball valve 71 as a constituent element46B. For example, as shown in FIG. 6B, it is possible to use a ball valve 71, a valve case 72, and an opening / closing device 73 as main components. it can. However, the claim4The water stopping mechanism according to the invention is not limited to the one having the “pressure relief function at the time of water stopping”. Claims4The water stop mechanism of the invention of the invention is not limited to the ball valve type, for example, "sliding contact valve system that slides and moves to open and close the flow path", "moves the valve body to and from the valve port" Other types of water shutoff mechanisms, such as a "lift valve method for opening and closing the flow path", can also be selected. Claims4The water stopping mechanism of the invention of the invention is not only a "water discharge and stop water selection function", but also a "flow rate adjustment function" or a "selection between normal water discharge and shower water discharge, between bubble discharge and water discharge without bubble discharge. Other functions such as "selection function of water discharge mode such as selection" may be provided. These points are the same in the second to sixth examples described below.
[0033]
The retaining member 50 of the first example is formed in a substantially frame shape, and a pair of first locking pieces 51 project in a substantially C shape from above and below one opening, and two pairs of first locking pieces 51 from above and below the other opening. The two locking pieces 52 project in a substantially inverted C-shape. First, the retaining member 50 is externally fitted to the insertion portion 35 from the other opening side, and the first locking piece 51 is locked in the upper and lower locking grooves 36 of the insertion portion 35. In this state, when the connecting portion 13 is pressed into the connected portion 33, the second locking piece 52 is locked in the locking groove 14 of the connecting portion 13, and the frame portion of the retaining member 50 is inserted into the insertion portion 35. And the inner wall surface of the connection portion 13.
[0034]
In this manner, the retaining member 50 is locked to both the insertion portion 35 and the connection portion 13, and the insertion portion 35 and the connection portion 13 are prevented from coming off from each other. Even if the water supply pressure in the direction is applied, the head 31 does not come off. That is, in the first example, the retaining member 50 is interposed between the connection portion 13 and the insertion portion of the insertion portion 35, and the retaining member 50 is connected to both the connection portion 13 and the insertion portion 35, that is, the main body portion 11 and the head. The main body 11 and the head 31 are prevented from coming off from each other by being locked to both of the parts 31.
[0035]
Next, according to a second example shown in FIG.Reference invention excluded from the claims (hereinafter referred to as "Reference Invention 1")And claims4Another specific example of the water spout 10 according to the invention will be described. As in the first example, the water discharging device 10 also includes a main body 11 as a first member and a head 31 as a second member, and the main body 11 and the head 31 are secured by a retaining member 50 so as to be secured. It is configured as follows. However, in the second example, the locking grooves 14 are provided above and below the outer wall surface of the connecting portion 13, and the locking grooves are not provided in the head 31. The retaining member 50 has a pair of first locking pieces 51 protruding from above and below one opening, and a large number of substantially triangular second locking pieces 52 protruding from above and below the other opening. The other points are the same as in the first example.
[0036]
First, the retaining member 50 of the second example is externally fitted to the connection portion 13 from one opening side, and the first locking piece 51 is locked in the locking groove 14. In this state, when the connecting portion 13 is press-fitted into the connected portion 33, the distal end side of the second locking piece 52 is locked to the outer wall surface of the insertion portion 35 while bending in the anti-inserting direction, and the retaining member 50 The frame portion is sandwiched between the inner wall surface of the connected portion 33 and the outer wall surface of the connection portion 13. As a result, the retaining member 50 is locked to both the connecting portion 13 and the connected portion 33, so that even if water supply pressure is applied from the water passage 12 to the head 31 in the withdrawal direction, the head 31 is There is no escape.
[0037]
In the first and second examples, after the retaining member 50 is locked to one of the main body 11 or the head 31, the main body 11 or the head 31 is inserted when the main body 11 or the head 31 is inserted. Although the mode of locking to the other side of 31 has been exemplified,1In the present invention, the retaining member 50 may be simultaneously locked to both the main body 11 and the head 31 at the time of the insertion. In the first and second examples, the insertion portion 35 is provided in the connected portion 33. However, the insertion portion 35 is provided in the connection portion 13 or the insertion portion 35 is provided by both the connection portion 13 and the connection portion 33. May be omitted, and a retaining member 50 may be interposed between the connecting portion 13 and the connected portion 33. Furthermore, in the first and second examples, the connecting portion 13 is a male type and the connected portion 33 is a female type.1In the present invention, these sexes may be reversed. In the first and second examples, the frame-shaped retaining member 50 is illustrated. However, in the invention of claim 3, a substantially container shape, a U-shaped cross section, an L-shaped cross section, a plate shape, or the like is used. Another mode of the retaining member 50 can also be used.
[0038]
Here, the third example shown in FIG. 3 shows a mode in which a plate-shaped retaining member 50 is used. That is, as shown in FIG. 3A, the retaining member 50 is formed in a substantially plate shape, and a first locking piece 51 is provided on one of a pair of opposed edges and a second locking piece is provided on the other. 52 are provided in a folded shape, and a third locking piece 53 is provided in a folded shape at an intermediate position between these edges.
[0039]
As shown in FIG. 3B, the retaining member 50 is interposed above and below the insertion portion formed by the connection portion 13 and the insertion portion 35. That is, in each of the upper and lower retaining members 50, the second locking piece 52 is locked in the locking groove 14 of the connection portion 13, and the third locking piece 53 is locked in the locking groove 36 of the insertion portion 35. ing. The first locking piece 51 of the upper retaining member 50 is locked by the step 17 provided at the protruding end of the insertion portion 35, and the first locking piece 51 of the lower retaining member 50 is It is locked in a locking groove 38 provided on the protruding end side of the insertion portion 35. The first locking piece 51 does not directly relate to the retaining of the main body 11 and the head 31. That is, the first locking piece 51 is for holding the retaining member 50 attached to the insertion portion 35 prior to the insertion of the insertion portion 35 into the connection portion 13. The retaining member 50 attached to the insertion portion 35 locks the first locking piece 51 to the step 17 or the locking groove 38 of the insertion portion 35 when the insertion portion 35 is inserted into the connection portion 13. As a result, the insertion portion 35 is inserted into the connection portion 13 together with the insertion portion 35 without causing displacement, and the second locking piece 52 is accurately locked in the locking groove 14 of the connection portion 13. As shown in the third example, it is also possible to use the substantially plate-shaped retaining member 50 having a simple shape and structure to prevent the main body 11 and the head 31 from being detached from each other.
[0040]
Note that, in the first to third examples, the aspect in which the locking portions are formed in the upper and lower portions of the insertion portion of the main body 11 and the head 31 is described.1According to the invention, the locking portion can be provided at any one of four to four positions selected from the upper, lower, left and right portions of the insertion portion. Further, in the first to third examples, the body 11, the head 31, and the insertion portion 35 having the cross-sectional shape of a substantially rectangular frame are illustrated. However, the substantially circular frame, the substantially elliptical frame, and the substantially Claims also apply to those having various cross-sectional shapes such as a triangular frame shape or a polygonal frame shape of five or more corners.1Can be applied. In particular, even when these cross-sectional shapes have a rotationally symmetrical shape around the axis, such as a perfect circular frame, they are provided on each of the main body 11 and the head 31 as in the first and third examples. According to the aspect in which the locking pieces (51, 52, 53) of the retaining member 50 are uniquely locked in the locking grooves (14, 36, etc.), the main body 11 and the head are This has great significance in that accurate positioning between the 31 can be performed.
[0041]
Next, according to a fourth example shown in FIG.2And claims4A specific example of the water spout 10 according to the invention will be described. This water discharging device 10 is also described in the claims.3According to the invention, the main body 1 and the head 31 are provided with the main body 11 and the head 31 as the second member, and the main body 1 and the head 31 are secured by the retaining member 50 so as to be secured.
[0042]
As the main body 11 of the fourth example, the same one as the main body 11 of the first example is used. Further, as the head 31 of the fourth example, the internal space is formed as the water passage 32, and the connected portion 33 is formed by the end on the side of the main body 11, and the partition wall 39 is provided substantially inside the connected portion 33 on the back side. It is provided in a lid shape. Further, from the partition wall 39, a projecting end constitutes a valve port 86 and a water passage tubular portion 40 communicating with the internal space to the water passage 32, and a fixing tube formed with an internal thread portion 41 in the axial direction. The protruding portion 43 protrudes in the opening direction of the connected portion 33. The opening and closing of the valve port 86 shown in the fourth example is also performed by, for example, a water stop mechanism 70 mainly composed of a ball valve 71, a valve case 72, and an opening / closing device 73 shown in FIG. Can be.
[0043]
The retaining member 50 of the fourth example has a substantially container shape, protrudes a locking claw 56 having a substantially triangular cross section from above and below the outer wall surface on the opening side, and has two large and small through holes 57 and 58 on the bottom surface. It is open. The retaining member 50 is loosely inserted into the connected portion 33 from the opening side thereof, and the water-permeable tubular portion 40 is inserted into the large insertion hole 57 to expose the valve port 86 from the bottom surface portion. At the same time, the female screw portion 41 of the fixing tubular portion 43 is aligned with the small insertion hole 58. When the screw 59 is screwed into the female screw portion 41 through the small insertion hole 58, the screw 59 is fixed to the head 31.
[0044]
Furthermore, the connecting portion 13 is inserted into the gap between the inner wall surface of the connected portion 33 and the outer wall surface of the retaining member 50, and each locking pawl 56 is locked in the corresponding locking groove 14 of the main body 11. By doing so, the head 31 is fixed to the main body 11 so as not to come off. That is, in the fourth example, the retaining member is inserted by inserting the water passage cylindrical portion 40 into the insertion hole 57, inserting the screw 59 into the insertion hole 58, and screwing into the fixing cylindrical portion 43. 50 is accurately aligned with the head 31, and the retaining member 50 is firmly fixed to the head 31 by pinching and fixing using the screw 59. When the connecting portion 13 is inserted into the connected portion 33, the retaining member 50 is locked to the connecting portion 13, so that the main body portion 11 and the head portion 31 are prevented from coming off.
[0045]
In the fourth example, the retaining member 50 is fixed to the head 31 and locked to the main body 11.2In the present invention, the retaining member 50 may be fixed to the main body 11 and locked to the head 31. The retaining member 50 may have a substantially frame shape as in the first and second examples, a plate shape as in the third example, a U-shaped cross section, or a cross section L. Other shapes such as a letter shape may be provided. Furthermore, also in the fourth example, the connecting portion 13 is a male type and the connected portion 33 is a female type.2In the present invention, these sexes may be reversed.
[0046]
Also, in the fourth example, the aspect in which the locking portion is formed in the upper and lower portions of the insertion portion of the main body portion 11 and the head portion 31 is exemplified.2In the present invention, the locking portion can be provided at any one of four to four positions selected from the upper, lower, left, and right portions of the insertion portion. Furthermore, in the fourth example, the main body 11, the head 31, and the insertion portion 35 are illustrated as having a substantially rectangular frame shape in cross section. However, a substantially circular frame shape, a substantially elliptical frame shape, a substantially triangular frame shape, or a pentagonal shape The invention of claim 4 can also be applied to those having various cross-sectional shapes such as the above-mentioned polygonal frame shape. In particular, even when these cross-sectional shapes have a shape that is rotationally symmetric about an axis such as a perfect circular frame, the retaining member 50 is positioned and fixed to one of the main body 11 or the head 31 as in the fourth example. On the other hand, according to the aspect in which the locking pawl 56 and the locking groove 14 are locked uniquely, the accurate positioning between the main body 11 and the head 31 can be achieved by the retaining member 50. It has great significance in that it can be performed.
[0047]
Next, according to a fifth example shown in FIG.Reference invention excluded from the claims (hereinafter referred to as "Reference Invention 2")And claims4A specific example of the water spout 10 according to the invention will be described. This water discharging device 10 is also described in the claims.3According to the invention, the main body 11 and the head 31 are provided with the main body 11 and the head 31 as the second member, and the main body 11 and the head 31 are prevented from coming off and fixed.
[0048]
The main body 11 of the fifth example is the same as the main body 11 of the first example except that concentric mounting holes 20 are provided on the upper surface and the lower surface of the connection portion 13 instead of the locking groove 14. Also, the head 31 of the fifth example is different from the head of the first example except that concentric mounting holes 44 and 45 are provided on the upper and lower surfaces of the connected portion 33 and the insertion portion 35 instead of the locking groove 36. This is the same as the unit 31. Further, the retaining member 50 of the fifth example is configured using a pin. In addition, also in the fifth example, the opening and closing of the valve port 86 provided in the head 31 is configured mainly by, for example, a ball valve 71, a valve case 72, and an opening / closing device 73 shown in FIG. This can be performed by the water stopping mechanism 70.
[0049]
In the fifth example, when the connecting portion 13 is inserted into the connected portion 33 and the insertion portion 35 is inserted into the connecting portion 13, the mounting holes 20, 44, and 45 are aligned. Then, when the shaft portion of the retaining member 50 is inserted through the uppermost mounting hole 44 and attached and fixed, the main body portion 11 and the head portion 31 are in a state of being retained and fixed. The retaining member 50 can be fixed by using a method such as adhesion or screwing.
[0050]
Also,Reference invention 25B, the retaining member 50 may be locked to both the main body 11 and the head 31 at the same time, as shown in the sixth example of FIG. In the sixth example, the retaining member 50 includes a stepped lid-shaped cap portion 60 and a locking piece 61 that protrudes left and right from the lower surface of the cap portion 60. Further, a stepped mounting hole 22 into which the upper half of the cap part 60 can be fitted is provided on the upper surface of the connection part 13 of the main body part 11. Further, two notches 25 that can pass through the locking pieces 61 are provided in opposition to the flange 23 projecting from the inner wall surface of the mounting hole 22 in a substantially ring shape. A substantially plate-shaped insertion portion 35 projects from the connected portion 33, and the insertion portion 35 is provided with a mounting hole 47 into which the lower half portion of the cap portion 60 can be fitted. The mounting hole 47 is also provided with two notches 48 that can pass through the locking pieces 61 so as to face each other. In addition, the insertion part 35 of the sixth example may be provided integrally with the head 31, or may be configured by using a separate plate-like object or the like inserted when the head 31 is formed. Is also good.
[0051]
In the sixth example, when the connected portion 33 including the insertion portion 35 is inserted into the connection portion 13 and the head portion 31 and the main body portion 11 are fitted, the mounting holes 22 and 47 are aligned. At this time, since the notch 25 and the notch 48 are also aligned, the retaining member 50 fits into the mounting holes 22 and 47 while allowing the locking pieces 61 to escape through the notches 25 and 48. Is done. When a tool, a coin or the like is inserted into the operation groove 62 on the upper surface of the cap portion 60 and the retaining member 50 is rotated, both ends of the locking piece 61 are locked on the lower surface of the insertion portion 35. That is, in the sixth example, the cap portion 60 is fixed to the upper surface side of the connection portion 13 by press-fitting, and the locking piece 61 is locked to the lower surface of the insertion portion 35. By holding the insertion portion 13 and the insertion portion 35, the head portion 31 and the main body portion 11 are prevented from coming off. As in the sixth example, when the retaining member 50 is removed, the mounting hole 22 and the mounting hole 47 are greatly exposed, so that the water blocking mechanism 70 is assembled and maintained through the mounting holes 22 and 47. Etc. can also be performed.
[0052]
In the fifth and sixth examples, the retaining member 50 is attached around the upper surface of the head 31 and the insertion portion of the main body 11.Reference invention 2In this case, the retaining member 50 may be attached at the lower surface side, the side surface side, or at two or more positions selected from the upper surface side, the lower surface side, and the side surface side of the insertion portion. Also,Reference invention 2In this case, the connecting portion 13 and the connected portion 33 shown in the fifth and sixth examples, and the connecting portion 13 and the connected portion 33 in which the sexes are reversed may be used. Further, in the fifth example and the sixth example, the main body 11 and the head 31 each have a substantially rectangular frame shape, but a substantially circular frame shape, a substantially elliptical frame shape, a substantially triangular frame shape, or a pentagonal shape. For those with various cross-sectional shapes such as the above polygonal frame shapeReference invention 2Can be applied. Further, the insertion portion 35 is not limited to the substantially rectangular frame shape in the fifth example or the substantially plate shape in the sixth example. In particular, according to the invention of claim 5, even when these cross-sectional shapes have a shape that is rotationally symmetric about an axis center such as a perfect circular frame, the mounting holes (20, 22, 44, 45, and 47) are positioned so as to communicate with each other, and the retaining member 50 is attached. Thus, the retaining member 50 enables accurate positioning between the main body 11 and the head 31. It has great significance in this respect.
[0053]
In the first to sixth examples described above,Claim 1, Claim 2, Reference Invention 1 and Reference Invention 2Although the water discharging device 10 to which any one of the retaining members 50 is applied has been described,Claim 1, Claim 2, Reference Invention 1 and Reference Invention 2May be used in combination.
[0054]
【The invention's effect】
As described above, according to the present invention, it is possible to obtain a water spouting device in which a plurality of members are inserted and connected, and the connection and fixing state between the members is reliably and firmly achieved.
[Brief description of the drawings]
FIG. 1A is an exploded perspective view of a first example, and FIG. 1B is a longitudinal sectional view of the first example.
2A is an exploded perspective view of a second example, and FIG. 2B is a longitudinal sectional view of the second example.
3A is a perspective view of a retaining member according to a third example, and FIG. 3B is a longitudinal sectional view of the third example.
4A is an exploded perspective view of a fourth example, and FIG. 4B is a longitudinal sectional view of the fourth example.
5A is an exploded perspective view of a fifth example, and FIG. 5B is an exploded perspective view of a sixth example.
6 (a) is a longitudinal sectional view of a water discharging device according to a conventional example, and FIG. 6 (b) is a plan transverse sectional view showing an example of a water stopping mechanism provided in the conventional example and the invention according to claim 6. FIG.
[Explanation of symbols]
Reference Signs List 10: water discharging tool, 11: main body (first member), 12; water passage, 13; connecting part, 14; locking groove, 16; sealing member, 17; stepped part, 18; sealing member, 20; Mounting hole, 23; flange, 25; notch, 31; head (second member), 32; water passage, 33; connected part, 34; frame wall, 35; Stop groove, 37; through hole, 38; locking groove, 39; partition wall, 40; water passage tubular part, 41; female screw part, 43; fixing tubular part, 44, 45; Mounting hole, 48; notch, 50; retaining member, 51; first locking piece, 52; second locking piece, 53; third locking piece, 56; locking pawl, 57, 58; 59, Screw, 60; Cap, 61; Locking piece, 62; Operation groove, 70; Water stop mechanism, 71; Ball valve, 72; Valve case, 73; Tongue, 76; Close button, 77, 78; Through hole, 79; Contact flange, 80; Contact flange, 81; Cylinder hole, 82; Piston portion, 83; Intermediate flange, 84; Stopper, 85; 86, valve port, 88; switching arm, 89; projection, 90; pressure receiving surface.

Claims

A water spout having a first member and a second member each having a water passage provided therein and being inserted and connected to each other,
The first member and the second member are water spouts that prevent the first member and the second member from coming off by a separate stopper member,
The retaining member is an insertion portion of a male connecting portion of the first member and a female connected portion of the second member, or a female connecting portion of the first member and the second member. Of the male part to be connected
The first locking piece of the retaining member is locked in the locking groove of the second member, and the second locking piece of the retaining member is locked in the locking groove of the first member. A water discharging device for preventing the first member and the second member from coming off from each other .

A water spout having a first member and a second member each having a water passage provided therein and being inserted and connected to each other,
The first member and the second member are water spouts that mutually prevent the first member and the second member from coming off by a separate stopper member,
The retaining member may be an insertion portion of a male connecting portion of the first member and a female connected portion of the second member, or a female connecting portion of the first member and the second member. Of the male part to be connected
The retaining member is fixed to one of the first member or the second member, and the retaining piece of the retaining member is retained in the other retaining groove of the first member or the second member, A water discharging device for preventing the first member and the second member from coming off from each other.

The water discharging device according to claim 1, wherein the first member is a main body having a grip portion, and the second member is a head having a water discharging port.

The water discharging device according to any one of claims 1 to 3 , further comprising a water stopping mechanism between the water passage of the first member and the water passage of the second member.