JP3091155B2 - Small bore pipe fittings - Google Patents

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】本発明は、建屋に配管される
上水道用小口径管継手に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-diameter pipe joint for water supply piped to a building.

【０００２】[0002]

【従来の技術】一般に、ワンタッチ作業（本明細書で
は、１回押すだけで作業が終了することをいう）で接続
可能とする小口径管継手は、受口、差口状のいわゆるオ
スメス嵌合させてバネリング（ファスナバネともいう）
により、この嵌合の抜止めをしている。2. Description of the Related Art In general, a small-diameter pipe joint which can be connected by one-touch operation (in this specification, the operation is completed by a single push) is a so-called male-female fitting having a socket and a spout. Let the spring ring (also called fastener spring)
This prevents the fitting.

【０００３】例えば、特公昭４６−４４８４号公報で示
されているワンタッチ式小口径管継手は、オスメス嵌合
の抜止めをするため、線バネからなるＵ字状バネリング
を用いている。そして、かかる線バネを用いているの
で、オス側の継手体はメス側の継手体の開口内で常時、
回動できるようになっている。[0003] For example, a one-touch type small-diameter pipe joint disclosed in Japanese Patent Publication No. 46-4484 uses a U-shaped spring ring made of a wire spring to prevent male and female fittings from coming off. And since such a wire spring is used, the male joint body is always in the opening of the female joint body,
It can rotate.

【０００４】かかるＵ字状バネリングにより、オスメス
嵌合の抜止めをする小口径管継手は、現在、流し台や洗
面台のキャビネット内での配管に用いられている。[0004] Small-diameter pipe joints that prevent the male and female fittings from being disengaged by such U-shaped spring rings are currently used for piping in sink and wash cabinets.

【０００５】このＵ字状バネリングは、大別して、薄板
バネを用いた抜止め部材と、線バネを用いた抜止め部材
とがある。[0005] The U-shaped spring ring is roughly classified into a retaining member using a thin plate spring and a retaining member using a wire spring.

【０００６】例えば、オス、メスの両継手体にそれぞれ
フランジを設け、オスメス嵌合によりこれらのフランジ
を接合し、接合したフランジの周縁の一部を挿入する１
対の切欠部をもつ薄板バネからなるＵ字状バネリング
（これをＵ字状薄板バネという）で、接合したフランジ
を挟んでおく管継手（例えば、特開平７−２６００７１
号公報、特開平７−２６９７５１号公報等参照）は前者
のタイプであり、また、メス側の継手体に１対の割線状
切欠部を設け、オス側の継手体に外周溝を設け、割線状
切欠部に、線バネからなるＵ字状バネリングを装着して
からオスメス嵌合すると、このバネリングが外周溝に嵌
まり、オスメス嵌合の抜止めをする管継手（例えば、特
開平６−５０４８３号公報、特開平６−８１９９０号公
報等参照）は、後者のタイプである。For example, a flange is provided on each of the male and female joints, these flanges are joined by male and female fitting, and a part of the peripheral edge of the joined flange is inserted.
A pipe joint (see, for example, Japanese Unexamined Patent Publication No. 7-260071) in which a joined flange is sandwiched by a U-shaped spring ring made of a thin plate spring having a pair of cutouts (this is called a U-shaped thin plate spring).
Japanese Patent Laid-Open No. 7-2699751) is the former type, and a pair of notched portions are provided in the female joint body, and an outer peripheral groove is provided in the male joint body, When a male and female fitting is performed after a U-shaped spring ring made of a wire spring is attached to the notch-shaped notch, the spring ring fits in the outer peripheral groove, and a pipe joint that prevents the male and female fitting from being removed (for example, Japanese Patent Laid-Open No. 6-50483). Japanese Patent Application Laid-Open No. 6-81990) is the latter type.

【０００７】かかる後者のタイプの線バネを用いた抜止
め部材は、管継手に装着したとき露出部分が少なく、し
かも、線バネが高い引張り強さをもっているので、この
抜止め部材が外れないための第２の抜止め部材を必要と
しないものの、両継手体の芯出しや接続保持に不安があ
って、そのため袋ナットにより固定させる必要があり、
また、対向した大きい割線状の切欠部を設けるため、継
手体の強度を低下させると共に、オスメス嵌合のシ−ル
を損なうおそれがあった。The latter type of retaining member using a wire spring has a small exposed portion when attached to a pipe joint, and has a high tensile strength, so that the retaining member does not come off. Although the second retaining member is not required, there is concern about the centering and connection holding of both joint bodies, so it is necessary to fix the joint with a cap nut,
In addition, the provision of the large notched portions facing each other reduces the strength of the joint body, and may damage the male-female fitting seal.

【０００８】一方、前者のタイプのＵ字状薄板バネを用
いた抜止め部材では、前記の線バネのような不安はない
ものの、露出され、これが外れ易いので、更に第２の抜
止め部材を用いるようにしている。On the other hand, in the former type of retaining member using a U-shaped thin leaf spring, although there is no concern about the above-mentioned wire spring, it is exposed and easily comes off, so that the second retaining member is further mounted. I use it.

【０００９】例えば、前掲の特開平７−２６００７１号
公報では、Ｕ字状薄板バネのＵ字の各端部に、接合した
フランジの外周面に向って弾性係合爪を突設し、これら
の弾性結合爪がフランジの外周面に形成したロ−レット
に係合するようにして（これが第２の抜止め部材に相当
する）Ｕ字状薄板バネの外れを防止している。For example, in the above-mentioned Japanese Patent Application Laid-Open No. Hei 7-260071, elastic engaging claws are provided at each end of the U-shape of the U-shaped thin plate spring toward the outer peripheral surface of the joined flange. The U-shaped thin plate spring is prevented from coming off by engaging the elastic coupling claw with a knurl formed on the outer peripheral surface of the flange (this corresponds to a second retaining member).

【００１０】[0010]

【発明が解決しようとする課題】しかしながら、かかる
第２の抜止め部材では、薄板バネがＵ字状であるため、
Ｕ字を開く（Ｕ字の各端部を互に離反させることをい
う。以下、同じ）力が大であれば、弾性係合爪はロ−レ
ットから外れ、第２の抜止め部材の機能を失うおそれが
ある。However, in such a second retaining member, since the thin plate spring is U-shaped,
If the force to open the U-shape (to separate the ends of the U-shape from each other, the same applies hereinafter) is large, the elastic engaging claw is disengaged from the knurl and functions as the second retaining member. May be lost.

【００１１】そのため、Ｕ字状薄板バネを管継手に取付
現場で装着した後、Ｕ字の開くのを防止するため、薄板
バネ全体を囲繞カバ−したり、Ｕ字の両端部のみを把持
するようカバ−したりする第２の抜止め部材が提供され
ている。For this reason, after the U-shaped thin plate spring is mounted on the pipe joint at the installation site, in order to prevent the U-shape from opening, the whole thin plate spring is covered or only the both ends of the U-shape are gripped. And a second retaining member for covering.

【００１２】しかしながら、かかる第２の抜止め部材で
も、これを装着する方向と反対側に外れるおそれがあ
り、しかも、第２の抜止め部材は、Ｕ字状薄板バネを管
継手に装着した後のＵ字状薄板バネに装着するため、そ
の装着作業が２工程となり、オスメス嵌合の作業と合せ
ると３工程となって、本来のワンタッチ作業の特長を損
なうことになる。However, even with the second retaining member, there is a possibility that the second retaining member may come off in a direction opposite to the mounting direction, and the second retaining member may be attached after the U-shaped thin plate spring is mounted on the pipe joint. In this case, the mounting operation is performed in two steps, and when combined with the male and female fitting operation, the mounting operation is performed in three steps, thus impairing the original one-touch operation.

【００１３】そこで本発明は、かかる問題を解決するた
め、Ｕ字状薄板バネからなる抜止め部材を管継手に装着
（本明細書で装着とは、主として生産工場で組付ける作
業や、取付現場でも、予め単品の継手体に組付ける手作
業をいう）してもワンタッチ作業を損なわないようにす
ることを主たる目的とし、オスメス嵌合後、Ｕ字状薄板
バネのＵ字の開きを確実に防止することを副たる目的と
するものである。In order to solve such a problem, the present invention mounts a retaining member made of a U-shaped thin plate spring on a pipe joint. However, the main purpose is not to impair the one-touch operation even if it is a manual operation to assemble it into a single joint body in advance. After the male and female fitting, the U-shaped thin plate spring is surely opened in the U-shape. Its secondary purpose is to prevent it.

【００１４】[0014]

【課題を解決するための手段】かかる目的を達成するた
め本発明は、１）オス側の継手体とメス側の継手体とか
らなり、かつ、ワンタッチ作業でオスメス嵌合させて接
続する小口径管継手にあって、前記両継手体にそれぞれ
設けたフランジ（６）（８）を、前記オスメス嵌合によ
り接合し、これらの接合したフランジ（６）（８）の周
縁の一部を挿入する１対の切欠部（９）をもつＵ字状薄
板バネ（１０）により、オスメス嵌合の抜止めをするよ
うにした建屋配管の上水道用小口径管継手において、前
記Ｕ字状薄板バネ（１０）を、Ｕ字連結部（２２）と１
対の円弧状Ｕ字中間部（２３）と１対のハ字状Ｕ字端部
（２４）とから構成し、前記Ｕ字中間部（２３）に前記
切欠部（９）を設け、該Ｕ字状薄板バネ（１０）をオス
メス嵌合前に他方のフランジ（６）側の継手体に予め装
着すると共に、該Ｕ字状薄板バネ（１０）のＵ字の開き
を防止して外れないようにするための、該Ｕ字状薄板バ
ネ（１０）のＵ字連結部（２２）およびＵ字中間部（２
３）を各カバ−し、かつ、Ｕ字端部（２４）を案内する
合成樹脂製囲繞カバ−（１１）を、該Ｕ字状薄板バネ
（１０）にかぶせておき、前記Ｕ字状薄板バネ（１０）
のＵ字を開いて前記切欠部（９）に挿入するための、開
口側を縮径したテ−パをつけた前記フランジ（８）の一
方を、該切欠部（９）に挿入して前記他方のフランジ
（６）に接合することを特徴とする建屋配管の上水道用
小口径管継手にあり、また、２）前記囲繞カバ−をオス
メス嵌合後に軸方向移動防止し、かつ、一方のフランジ
側の継手体にオスメス嵌合前に予め生産工場にて装着し
たＥ形止め輪（１２）を付設した請求項１に記載の建屋
配管の上水道用小口径管継手にあり、また、３）前記一
方のフランジ側の継手体にフレキシブル管を接続固着し
た請求項１または２に記載の建屋配管の上水道用小口径
管継手を要旨とするものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides: 1) a small-diameter connector comprising a male-side joint body and a female-side joint body, wherein the male-female joint is connected by a one-touch operation; In the pipe joint, the flanges (6) and (8) respectively provided on the two joint bodies are joined by the male and female fittings, and a part of the periphery of the joined flanges (6) and (8) is inserted. The U-shaped thin plate spring (10) is provided in a small-diameter pipe joint for water supply of a building piping in which a male and female fitting is prevented from being removed by a U-shaped thin plate spring (10) having a pair of notches (9). ) Is connected to the U-shaped connection part (22) and 1
A pair of arcuate U-shaped middle portions (23) and a pair of C-shaped U-shaped end portions (24), wherein the U-shaped middle portion (23) is provided with the notch (9); Before the male-female fitting, the U-shaped thin spring (10) is pre-mounted on the joint body on the other flange (6) side, and the U-shaped thin leaf spring (10) is prevented from opening so that it does not come off. The U-shaped thin plate spring (10) has a U-shaped connecting portion (22) and a U-shaped intermediate portion (2).
3), and a synthetic resin surrounding cover (11) for guiding the U-shaped end portion (24) is placed over the U-shaped thin plate spring (10), and the U-shaped thin plate is covered. Spring (10)
One of the flanges (8) provided with a taper whose opening side has a reduced diameter for opening the U-shape and inserting into the cutout (9) is inserted into the cutout (9). A small-diameter pipe joint for water supply in a building pipe, which is joined to the other flange (6); and 2) the surrounding cover is prevented from moving in the axial direction after the male and female fittings, and one flange is provided. The small-diameter pipe fitting for water supply of a building pipe according to claim 1, wherein an E-shaped retaining ring (12) previously attached at a production plant is attached to the joint body on the side before the male and female fittings. The gist of the present invention is a small-diameter pipe joint for water supply of a building pipe according to claim 1 or 2, wherein a flexible pipe is connected and fixed to a joint body on one flange side.

【００１５】[0015]

【発明の実施の形態】本発明を、添付図面に示す実施の
形態例により詳細に述べる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to embodiments shown in the accompanying drawings.

【００１６】図１は本発明の実施の形態例のワンタッチ
作業工程図、図２は図１の分解斜視図、図３は図１の縦
断面図、図４は図１の要部詳細図、図５は図１の他の要
部詳細図、図６は従来例である。FIG. 1 is a one-touch operation process diagram of an embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, FIG. 3 is a longitudinal sectional view of FIG. 1, FIG. FIG. 5 is a detailed view of another main part of FIG. 1, and FIG. 6 is a conventional example.

【００１７】本発明の実施の形態例は、建屋内に配管さ
れる上水道（湯または水）用小口径管継手に関し、特
に、流し台や洗面台の狭隘なキャビネット内での配管に
用いると好都合となる。したがって、壁面から突出した
湯、水の止水栓付の分岐管に、可撓性の給湯、給水ホ−
スを、それぞれ接続して、流し台に立設する湯水混合栓
の取付工事に好都合となる。The embodiment of the present invention relates to a small-diameter pipe fitting for water supply (hot water or water) to be piped in a building, and is particularly advantageous when used in a pipe in a narrow cabinet such as a sink or a sink. Become. Therefore, a flexible hot water supply and a water supply hose are provided on the branch pipe with a water stopcock protruding from the wall surface.
Are connected to each other, which is convenient for installation work of a hot and cold water mixing tap installed on a sink.

【００１８】すなわち、図６に示すようにマンション等
の建屋の壁面５０には湯、水の止水栓５１，５１が突設
され、これらの止水栓５１，５１に湯、水の逆止弁ホル
ダ−１，１からなる分岐管がそれぞれ接続されている。
これらの湯、水の逆止弁ホルダ−１，１に給湯、給水ホ
−ス（フレキシブル管）２，２をオスメス嵌合させて接
続するが、この接続のとき用いる小口径管継手３Ａ，３
Ａに本実施の形態例は好都合となる。That is, as shown in FIG. 6, water stopcocks 51, 51 are protrudingly provided on the wall surface 50 of a building such as an apartment building. The branch pipes composed of the valve holders-1 and 1 are respectively connected.
Hot and cold water supply hoses (flexible pipes) 2 and 2 are connected to these hot water and water check valve holders 1 and 1 by male and female fittings, and small-diameter pipe joints 3A and 3 used for this connection.
A is advantageous in this embodiment.

【００１９】先ず、本実施の形態例の小口径管継手３に
おけるオスメス嵌合を抜止めする第１の抜止め部材４
と、この第１の抜止め部材４を外れないようにする第２
の抜止め部材５とについて概説する。なお、湯と水の小
口径管継手３，３は同一構造につき一方のみを以下述べ
る。First, a first retaining member 4 for retaining the male and female fittings in the small-diameter pipe joint 3 of the present embodiment.
And a second to prevent the first retaining member 4 from coming off.
Of the retaining member 5 will be outlined. It should be noted that only one of the small diameter pipe joints 3 and 3 of the hot water and the water has the same structure, and only one will be described below.

【００２０】その構成を示す図２（図中、矢印ａ，ｂは
水の流れを示す）において、逆止弁ホルダ−１は銅合金
製で、その一端にフランジ６を形成している。In FIG. 2 (the arrows a and b indicate the flow of water), the check valve holder-1 is made of a copper alloy and has a flange 6 at one end.

【００２１】一方、合成ゴム等からなる内径７ｍｍφの
ホ−ス２の先端には、銅合金製ホ−スユニオン（接続金
具）７を固着し、このホ−スユニオン７には、開口側に
向けて縮径テ−パ（先細り状テ−パ）をつけ、かつ、前
記フランジ６は当接するリング部をもつフランジ８を形
成している。On the other hand, a hose union (connection fitting) 7 made of copper alloy is fixed to the tip of a hose 2 made of synthetic rubber or the like and having an inner diameter of 7 mmφ. A tapered taper (tapered taper) is provided, and the flange 6 forms a flange 8 having a ring portion with which it comes into contact.

【００２２】そして、この逆止弁ホルダ−１は継手体の
メス部を、ホ−スユニオン７は継手体のオス部を、それ
ぞれ構成してオスメス嵌合する。このオスメス嵌合する
と、前記フランジ６とテ−パ付フランジ８とは接合され
る（特に、図３（Ｃ）参照）。The check valve holder 1 constitutes the female part of the joint body, and the hose union 7 constitutes the male part of the joint body. When the male and female are fitted, the flange 6 and the tapered flange 8 are joined (particularly, see FIG. 3C).

【００２３】これらの接合したフランジ６，８を挟持し
てオスメス嵌合の抜止めをするためのＵ字状薄板バネ１
０は、ＳＵＳ製であって、これらのフランジ６，８の周
縁の一部を挿入して挟む１対の切欠部９，９をもってい
る。したがって、このＵ字状薄板バネ１０がオスメス嵌
合を抜止めする第１の抜止め部材４となる。A U-shaped thin plate spring 1 for holding the joined flanges 6 and 8 to prevent the male and female fitting from being pulled out.
Numeral 0 is made of SUS and has a pair of cutouts 9, 9 for inserting a part of the peripheral edge of these flanges 6, 8 and sandwiching them. Therefore, the U-shaped thin plate spring 10 serves as the first retaining member 4 for retaining the male and female fittings.

【００２４】このＵ字状薄板バネ１０が外れないように
するため、ＰＯＭＤ製（合成樹脂製）の囲繞カバ−１１
をこれに上方からかぶせる。したがって、この囲繞カバ
−１１が第２の抜止め部材５となる。更に、この囲繞カ
バ−１１が外れないようにするため、Ｅ形止め輪１２を
用いる。このＥ形止め輪１２が第３の抜止め部材とな
る。In order to prevent the U-shaped thin plate spring 10 from coming off, a surrounding cover 11 made of POMD (made of synthetic resin) is used.
Over it. Therefore, the surrounding cover 11 serves as the second retaining member 5. Further, an E-shaped retaining ring 12 is used to prevent the surrounding cover 11 from coming off. The E-shaped retaining ring 12 serves as a third retaining member.

【００２５】次に、以上のような小口径管継手３におけ
る第１、第２および第３の抜止め部材４，５，１２の使
い方を述べる。Next, how to use the first, second and third retaining members 4, 5, and 12 in the small-diameter pipe joint 3 as described above will be described.

【００２６】前記図６に示すように逆止弁ホルダ−１
は、既設の突設された止水栓５１に螺着して立設されて
おり、ホ−ス２は、不図示の流し台の天板に立設された
湯水混合栓から吊下されている。As shown in FIG. 6, the check valve holder-1
Is screwed to an existing projecting water stopcock 51, and the hose 2 is suspended from a hot / water mixer tap installed on a top plate of a sink (not shown). .

【００２７】そこで、止水栓５１に逆止弁ホルダ−１を
立設する前に予め、図１（これは左、上から組付順を示
す工程図）に示すように、逆止弁ホルダ−１のフランジ
６にＵ字状薄板バネ１０を横方向（本明細書では逆止弁
ホルダ−１の軸方向を、上、下または縦方向といい、こ
れに直交する方向を横方向という）から挿入して装着し
た後、このＵ字状薄板バネ１０に囲繞カバ−１１を上方
からかぶせてＵ字の開きを防止しておく。Therefore, before the check valve holder 1 is erected on the water stopcock 51, as shown in FIG. 1 (this is a process diagram showing the order of assembly from the left, from the top), the check valve holder -1 flange 6 in the transverse direction (in this specification, the axial direction of the check valve holder 1 is referred to as up, down, or longitudinal direction, and the direction orthogonal thereto is referred to as the transverse direction). After mounting, the surrounding cover 11 is placed over the U-shaped thin plate spring 10 from above to prevent the U-shaped opening.

【００２８】一方、ホ−スユニオン７には、予めＥ形止
め輪１２を横方向から挿入して装着しておく。なお、以
上のような装着を生産工場で行えば、部品がまとめられ
て出荷でき、取付現場の作業が文字どおりワンタッチ作
業となり、一層楽になる。On the other hand, an E-shaped retaining ring 12 is inserted into the hose union 7 in advance from the lateral direction and mounted. If the above mounting is performed at the production factory, the components can be assembled and shipped, and the work at the mounting site is literally a one-touch operation, which makes it even easier.

【００２９】そして、フレキシブルなホ−ス２を把持し
てホ−スユニオン７を逆止弁ホルダ−１に図１矢印ａの
ようにオスメス嵌合すると、テ−パ付フランジ８がＵ字
状薄板バネ１０を、図１矢印ｂのようにその挿入方向と
反対側に若干移動させて拡径するので、このテ−パ付フ
ランジ８は切欠部９に挿入できる。テ−パ付フランジ８
が切欠部９に挿入してしまうと、そのＵ字状薄板バネ１
０はそのバネ力により図１矢印ｃのように戻ると共に、
Ｅ形止め輪１２に当接する。When the hose union 7 is fitted to the check valve holder 1 by male and female as shown in FIG. 1A by gripping the flexible hose 2 and the tapered flange 8 becomes a U-shaped thin plate. Since the spring 10 is slightly moved in the direction opposite to the insertion direction as shown by the arrow b in FIG. 1 to expand the diameter, the tapered flange 8 can be inserted into the cutout 9. Tapered flange 8
Is inserted into the notch 9, the U-shaped thin plate spring 1
0 is returned by the spring force as shown by arrow c in FIG.
It comes into contact with the E-shaped retaining ring 12.

【００３０】したがって、逆止弁ホルダ−１に対しホ−
ス２は狭隘なキャビネット内でワンタッチ作業で接続で
きると共に、囲繞カバ−１１とＥ形止め輪１２との抜止
め機能が相俟って、いわゆるハメコロシを構成し、容易
に外れないようになる。その結果、この小口径管継手３
を素人がみだりに外し、キャビネット内を水浸しにする
等、不測の事故を完全に防ぐことができる。勿論、専門
の施工者が、かかるハメコロシを解体しようとすれば、
取外し作業が周知のＥ形止め輪１２を外せばよい。Therefore, the check valve holder 1 is
The screw 2 can be connected by a one-touch operation in a narrow cabinet, and together with the function of preventing the surrounding cover 11 and the E-shaped retaining ring 12 from coming off, a so-called squeaker is formed and cannot be easily detached. As a result, this small-diameter pipe joint 3
An amateur accidentally removes the inside of the cabinet and floods the inside of the cabinet, so that unexpected accidents can be completely prevented. Of course, if a professional builder tries to disassemble such a squirrel,
The removal operation may be performed by removing the well-known E-shaped retaining ring 12.

【００３１】次に、各部品を詳説する。先ず、図３に示
す逆止弁ホルダ−１について述べる。図３（Ａ）は逆止
弁ホルダ−１の縦および横断面、同（Ｂ）はホ−スユニ
オン８を逆止弁ホルダ−１にオスメス嵌合前の縦および
横断面、同（Ｃ）はオスメス嵌合後の縦および横断面を
示すが、逆止弁ホルダ−１には逆止弁用ポペット弁１３
が内蔵され、このポペット弁１３は弁座兼ガイド筒１４
に組込まれて水圧により開閉する。このポペット弁１３
の流入口、すなわち逆止弁ホルダ−１の下方開口部１５
は止水栓５１（図６参照）に螺着するネジが刻設されて
いる。Next, each component will be described in detail. First, the check valve holder-1 shown in FIG. 3 will be described. 3 (A) is a longitudinal and transverse section of the check valve holder-1, FIG. 3 (B) is a longitudinal and transverse section before fitting the hose union 8 to the check valve holder-1, male and female, and FIG. The vertical and horizontal cross sections after fitting of the male and female are shown, but the check valve holder 1 has a poppet valve 13 for a check valve.
The poppet valve 13 is a valve seat and guide cylinder 14
Opened and closed by water pressure. This poppet valve 13
, The lower opening 15 of the check valve holder-1
Is provided with a screw that is screwed into the water stopcock 51 (see FIG. 6).

【００３２】また、逆止弁ホルダ−１の上方開口部１６
は、ホ−スユニオン７が密接内嵌するように開口され、
その上下中間にＯリング１７が内嵌されてシ−ルする。
この逆止弁ホルダ−１の上端には外向きのフランジ６が
形成されている。The upper opening 16 of the check valve holder-1
Is opened so that the hose union 7 fits tightly inside,
An O-ring 17 is fitted in the middle between the upper and lower portions to seal.
An outward flange 6 is formed at the upper end of the check valve holder-1.

【００３３】次に、主として図３に示すホ−スユニオン
７について述べる。これは合成ゴム製ホ−ス２の下端側
が外嵌する竹の子状ジョイント部１８と、その下方でＥ
形止め輪１２を嵌合するリング用溝１９と、その下方で
形成した開口側に向けて縮径したテ−パ（先細り状テ−
パ）をもつ外向きのフランジ８と、逆止弁ホルダ−１の
上方開口部１６に内嵌する内嵌部２０と、から構成され
ている。Next, the hose union 7 shown in FIG. 3 will be mainly described. This is made of a bamboo-like joint 18 on which the lower end of the synthetic rubber hose 2 is fitted externally, and the lower part of the joint 18 is E
A ring groove 19 into which the retaining ring 12 is fitted, and a taper (tapered taper) having a diameter reduced toward the opening formed below the ring groove 19.
And an inner fitting portion 20 which fits inside the upper opening 16 of the check valve holder-1.

【００３４】なお、合成ゴム製ホ−ス２の下端側は、竹
の子状ジョイント部１８に外嵌した後、締付カラ−２１
をカシメで固着している。The lower end side of the synthetic rubber hose 2 is externally fitted to the bamboo shoot joint 18 and then tightened with a collar 21.
Is fixed by caulking.

【００３５】次に、Ｕ字状薄板バネ１０は主として図５
（Ｂ），（Ｃ），（Ｄ）および図２に示すようになって
いるが、図５（Ｂ）は平面図、（Ｃ）は側面図、（Ｄ）
は正面図を示す。Next, the U-shaped thin plate spring 10 is mainly
(B), (C), (D) and FIG. 2 are shown, FIG. 5 (B) is a plan view, (C) is a side view, and (D)
Shows a front view.

【００３６】このＵ字状薄板バネ１０は、ＪＩＳではフ
ァスナバネと呼ばれており、厚さ約０．８ｍｍ、巾１２
ｍｍのＳＵＳ製バネ板を略Ｕ字状に形成している。すな
わち、Ｕ字連結部２２をコ字状にし、１対のＵ字中間部
２３を円弧状にし、１対のＵ字端部２４をハ字状に拡げ
てそれぞれ形成している。The U-shaped thin plate spring 10 is called a fastener spring in JIS and has a thickness of about 0.8 mm and a width of 12 mm.
The SUS spring plate having a thickness of mm is formed in a substantially U-shape. That is, the U-shaped connecting portion 22 is formed in a U shape, the pair of U-shaped intermediate portions 23 is formed in an arc shape, and the pair of U-shaped end portions 24 are formed in a C-shaped shape.

【００３７】このＵ字連結部２２に切込み２５を設け、
Ｕ字の開きを容易にしている。この切込み２５は、勿論
なくてもよい。また、Ｕ字連結部２２やＵ字端部２４に
かけてＵ字中間部２３には、１対の切欠部９，９を設け
て前記の接合したフランジ６，８の周縁の一部の１対を
挿入するようにしている。A notch 25 is provided in the U-shaped connecting portion 22,
U-shaped opening is easy. Of course, the cut 25 need not be provided. Further, a pair of notches 9 and 9 are provided in the U-shaped intermediate portion 23 over the U-shaped connecting portion 22 and the U-shaped end portion 24 so that a part of the periphery of the joined flanges 6 and 8 can be used. I try to insert it.

【００３８】次に、囲繞カバ−１１は主として図４、図
３および図２に示すようになっているが、特に、図４で
（Ａ）は図１のＡ〜Ａ矢視断面図、（Ｂ）は図４（Ａ）
のＢ〜矢視断面図、（Ｃ）は図４（Ｂ）のＣ〜Ｃ矢視断
面図、（Ｄ）は図４（Ｃ）のＤ〜矢視断面図を示してい
る。Next, the surrounding cover 11 is mainly shown in FIG. 4, FIG. 3 and FIG. 2. In particular, FIG. 4 (A) is a sectional view taken along the line A--A in FIG. B) is FIG. 4 (A)
4C is a cross-sectional view taken along the arrow B, FIG. 4C is a cross-sectional view taken along the arrow C-C in FIG. 4B, and FIG.

【００３９】この囲繞カバ−１１は、前記したＵ字状薄
板バネ１０の外周を主として囲繞してカバ−する形状に
なっていて、Ｕ字連結部２２をカバ−するコ字部２６、
１対のＵ字中間部２３をカバ−する１対の円弧部２７
と、１対のＵ字端部２４を案内する下方開口の１対のス
リット部２８と、コ字部２６の天井部２９と、スリット
連結部３０と、から構成されている。The surrounding cover 11 is shaped to cover mainly the outer periphery of the U-shaped thin plate spring 10 and cover the U-shaped thin plate spring 10.
A pair of circular arc portions 27 covering a pair of U-shaped intermediate portions 23
And a pair of slits 28 having a lower opening for guiding the pair of U-shaped ends 24, a ceiling 29 of the U-shaped part 26, and a slit connecting part 30.

【００４０】このコ字部２６の奥行きＬ８ｍｍ、巾Ｗ
８．５ｍｍ（いずれも図４（Ｂ）参照）はＵ字連結部２
２が摺動自在に内嵌する大きさに形成されている。ま
た、１対の円弧部２７はダルマ状になっていて、その大
径部３１はテ−パ付フランジ８によりＵ字端部２４を開
く大きさに形成され、小径部３２はＵ字端部２４がその
バネにより戻ったときの大きさに形成されている。The U-shaped portion 26 has a depth L of 8 mm and a width W of
8.5 mm (both refer to FIG. 4 (B))
2 is formed in a size that can be slidably fitted inside. The pair of arc portions 27 is formed in a darma shape, the large diameter portion 31 is formed to have a size that opens the U-shaped end portion 24 by the tapered flange 8, and the small diameter portion 32 is formed in the U-shaped end portion. 24 is formed to the size when it is returned by the spring.

【００４１】したがって、図３に示すように、Ｕ字状薄
板バネ１０に囲繞カバ−１１をかぶせた状態（図３
（Ａ））ではＵ字連結部２２はコ字部２６の奥にあっ
て、Ｕ字中間部２３，２３は小径部３２にあり、また、
Ｕ字端部２４はスリット部２８に引込んで挿入してい
る。Accordingly, as shown in FIG. 3, the U-shaped thin plate spring 10 is covered with the surrounding cover 11 (FIG. 3).
In (A)), the U-shaped connecting portion 22 is located at the back of the U-shaped portion 26, the U-shaped intermediate portions 23, 23 are located at the small diameter portion 32, and
The U-shaped end portion 24 is drawn into the slit portion 28 and inserted.

【００４２】そこで、オスメス嵌合によりテ−パ付フラ
ンジ８がＵ字状薄板バネ１０に当接してＵ字を開くよう
に作用すると、図３（Ｂ）のようにＵ字連結部２２はコ
字部２６から引出されＵ字中間部２３，２３は大径部３
１に位置し、また、Ｕ字端部２４はスリット部２８から
突出して、Ｕ字の開きをする。When the tapered flange 8 is brought into contact with the U-shaped thin plate spring 10 to open the U-shape by the male and female fitting, as shown in FIG. U-shaped middle portions 23, 23 drawn out from the character portion 26 are large-diameter portions 3.
1 and the U-shaped end portion 24 projects from the slit portion 28 to open the U-shape.

【００４３】次いで、テ−パ付フランジ８が切欠部９に
挿入すると、Ｕ字状薄板バネ１０は、そのバネ力でＵ字
を閉じるように作用するので、Ｕ字状薄板バネ１０は元
の図３（Ａ）の位置に戻り、図３（Ｃ）のようになる。
つまり、周辺の物を引掛ける突出部が亀の手足のように
引込んだ状態になる。Next, when the tapered flange 8 is inserted into the cutout 9, the U-shaped thin plate spring 10 acts so as to close the U-shape by its spring force. Returning to the position of FIG. 3 (A), it becomes as shown in FIG. 3 (C).
In other words, the protruding portion that hooks the surrounding object is drawn in like a turtle's limbs.

【００４４】次に、Ｅ形止め輪１２は、主として図５
（Ａ）の平面図に示しており、これは呼び径１２ｍｍ
φ、厚さ１ｍｍのバネ用ＪＩＳ規格品を用いている。す
なわち、入口側２点３３，３３と奥側１点３４の３点で
リング用溝１９を掴持するよう構成し、入口側２点３
３，３３の間隔は、リング用溝１９の底外径より若干小
になって、入口側２点３３，３３を開きリング用溝１９
に横方向から挿入するようになっている。このＥ形止め
輪１２の着脱の方法は通常の方法で行う。Next, the E-shaped retaining ring 12 is mainly configured as shown in FIG.
This is shown in the plan view of (A), which has a nominal diameter of 12 mm.
A JIS standard product for a spring with a diameter of 1 mm is used. That is, the ring groove 19 is configured to be gripped at three points of the entrance side two points 33, 33 and the back side one point 34, and the entrance side two points 3
The distance between the ring grooves 3 and 33 is slightly smaller than the outer diameter of the bottom of the ring groove 19, and the two inlet-side points 33 and 33 are opened to open the ring groove 19.
To be inserted from the side. The method of attaching and detaching the E-shaped retaining ring 12 is performed by a usual method.

【００４５】なお、本発明は、以上のような実施の形態
例の囲繞カバ−１１からなる第２の抜止め部材に限ら
ず、第２の抜止め部材として、Ｕ字の両端のみを把持し
てＵ字の開きを防止するものであってもよく、このよう
な第２の抜止め部材であれば、第３の抜止め部材として
のＥ形止め輪に、予め第２の抜止め部材を固着し、しか
も、軸方向に移動可能として、オスメス嵌合後に第３の
抜止め部材を固定するよう構成すればよい。It should be noted that the present invention is not limited to the second retaining member comprising the surrounding cover 11 of the above-described embodiment, and that the second retaining member holds only U-shaped ends. In order to prevent the U-shape from opening, if such a second retaining member, the second retaining member is previously attached to an E-shaped retaining ring as a third retaining member. What is necessary is just to comprise so that it may be fixed and movable in the axial direction, and the third retaining member may be fixed after the male and female fitting.

【００４６】また、本発明は、湯水混合栓に用いる小口
径管継手３に限らず、殊に、マンション等改造不可の建
屋において、浄水器や皿洗い器等に接続する小口径管継
手にも用いることができる。The present invention is not limited to the small-diameter pipe joint 3 used for a hot and cold water mixing tap, and is particularly used for a small-diameter pipe joint to be connected to a water purifier, a dishwasher, etc. in a building that cannot be remodeled, such as an apartment. be able to.

【００４７】[0047]

【発明の効果】本発明の請求項１によれば、Ｕ字状薄板
バネで接合したフランジを挟むので、継手体に切欠等を
設けず、芯出しや接続保持も良好で、継手体の強度およ
びシ−ル性を損なわないのは勿論、Ｕ字の開きを防止し
たＵ字状薄板バネの使用でありながら、ワンタッチ作業
を損なうことがないばかりか、ハメコロシにして、不測
の事故を防止し、出荷の流通性をよくすることができ
る。According to the first aspect of the present invention, since a flange joined by a U-shaped thin plate spring is sandwiched, notches are not provided in the joint body, centering and connection holding are good, and strength of the joint body is obtained. In addition to the use of a U-shaped thin plate spring that prevents the U-shape from opening, it not only does not impair the one-touch operation, but also prevents accidental accidents. In addition, distribution of shipping can be improved.

【００４８】請求項２、３によれば、Ｕ字状薄板バネの
Ｕ字の開きを防ぐ囲繞カバ−の外れを防止するＥ形止め
輪を付設して、素人からみたハメコロシを構成し、しか
も、これを付設してもフレキシブル管を押込んで行うワ
ンタッチ作業を損なうことがない。According to the second and third aspects of the present invention, an E-shaped retaining ring for preventing the U-shaped thin plate spring from opening the U-shape for preventing the surrounding cover from coming off is provided, thereby forming a squeaker as seen by an amateur. However, even if it is provided, the one-touch operation performed by pushing the flexible tube is not impaired.

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

【図１】本発明の実施の形態例のワンタッチ作業工程図
である。FIG. 1 is a one-touch operation process diagram of an embodiment of the present invention.

【図２】図１の分解斜視図である。FIG. 2 is an exploded perspective view of FIG.

【図３】図１の縦断面図である。FIG. 3 is a longitudinal sectional view of FIG.

【図４】図１の要部詳細図である。FIG. 4 is a detailed view of a main part of FIG. 1;

【図５】図１の他の要部詳細図である。FIG. 5 is a detailed view of another main part of FIG. 1;

【図６】従来例である。FIG. 6 is a conventional example.

【符号の説明】[Explanation of symbols]

１…逆止弁ホルダ−、３…小口径管継手、４…第１の抜
止め部材、５…第２の抜止め部材、６…フランジ、７…
ホ−スユニオン、８…テ−パ付フランジ、９…切欠部、
１０…Ｕ字状薄板バネ、１１…囲繞カバ−、１２…Ｅ形
止め輪REFERENCE SIGNS LIST 1 check valve holder 3 small diameter pipe joint 4 first stopper member 5 second stopper member 6 flange 7
Hose union, 8 ... tapered flange, 9 ... notch,
10: U-shaped thin plate spring, 11: surrounding cover, 12: E-shaped retaining ring

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 オス側の継手体とメス側の継手体とから
なり、かつ、ワンタッチ作業でオスメス嵌合させて接続
する小口径管継手にあって、 前記両継手体にそれぞれ設けたフランジ（６）（８）
を、前記オスメス嵌合により接合し、これらの接合した
フランジ（６）（８）の周縁の一部を挿入する１対の切
欠部（９）をもつＵ字状薄板バネ（１０）により、オス
メス嵌合の抜止めをするようにした建屋配管の上水道用
小口径管継手において、 前記Ｕ字状薄板バネ（１０）を、Ｕ字連結部（２２）と
１対の円弧状Ｕ字中間部（２３）と１対のハ字状Ｕ字端
部（２４）とから構成し、前記Ｕ字中間部（２３）に前
記切欠部（９）を設け、 該Ｕ字状薄板バネ（１０）をオスメス嵌合前に他方のフ
ランジ（６）側の継手体に予め装着すると共に、該Ｕ字
状薄板バネ（１０）のＵ字の開きを防止して外れないよ
うにするための、該Ｕ字状薄板バネ（１０）のＵ字連結
部（２２）およびＵ字中間部（２３）を各カバ−し、か
つ、Ｕ字端部（２４）を案内する合成樹脂製囲繞カバ−
（１１）を、該Ｕ字状薄板バネ（１０）にかぶせてお
き、 前記Ｕ字状薄板バネ（１０）のＵ字を開いて前記切欠部
（９）に挿入するための、開口側を縮径したテ−パをつ
けた前記フランジ（８）の一方を、該切欠部（９）に挿
入して前記他方のフランジ（６）に接合する ことを特徴
とする建屋配管の上水道用小口径管継手。1. A male joint body and a female joint body.
And connect with male and female by one-touch operation
And a flange provided on each of the two joint bodies.(6) (8)
Were joined by the male-female fitting, and these joined
Flange(6) (8)A pair of cuts to insert part of the periphery of
Male U-shaped thin plate spring (10) with notch (9)
For water supply of building plumbing designed to prevent female fitting
In the small-diameter pipe joint, the U-shaped thin plate spring (10) is connected to a U-shaped connecting portion (22).
A pair of arcuate U-shaped middle parts (23) and a pair of C-shaped U-shaped ends
(24), and the front of the U-shaped middle part (23)
A notch (9) is provided, and the U-shaped thin plate spring (10) is connected to the other
Runge(6)And the U-shaped
Opening of U-shaped thin plate spring (10)ToPrevent it from coming off
U-shaped connection of the U-shaped thin plate spring (10)
Part (22)andU-shaped middle part (23)eachCover and do
And a synthetic resin surrounding cover for guiding the U-shaped end (24).
(11) over the U-shaped thin plate spring (10)In
Come Open the U-shape of the U-shaped thin plate spring (10) and cut out the notch.
Use a taper whose opening side is reduced in diameter for insertion into (9).
Insert one of the flanges (8) into the notch (9).
And joined to the other flange (6) Features
A small diameter pipe fitting for water supply in building piping. 【請求項２】 前記囲繞カバ−をオスメス嵌合後に軸方
向移動防止し、かつ、一方のフランジ側の継手体にオス
メス嵌合前に予め生産工場にて装着したＥ形止め輪（１
２）を付設した請求項１に記載の建屋配管の上水道用小
口径管継手。2. An E-shaped retaining ring (1) which prevents the surrounding cover from moving in the axial direction after the male and female fittings are fitted, and which is previously mounted on a joint body on one flange side at the production factory before the male and female fittings.
The small-diameter pipe joint for water supply of a building according to claim 1, further comprising (2). 【請求項３】 前記一方のフランジ側の継手体にフレキ
シブル管を接続固着した請求項１または２に記載の建屋
配管の上水道用小口径管継手。3. The small-diameter pipe joint for water supply of a building pipe according to claim 1, wherein a flexible pipe is connected and fixed to the joint body on the one flange side.