JP2006183839A - Joint holding member - Google Patents

Joint holding member Download PDF

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JP2006183839A
JP2006183839A JP2004380863A JP2004380863A JP2006183839A JP 2006183839 A JP2006183839 A JP 2006183839A JP 2004380863 A JP2004380863 A JP 2004380863A JP 2004380863 A JP2004380863 A JP 2004380863A JP 2006183839 A JP2006183839 A JP 2006183839A
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joint
holding member
holding
expansion
cap nut
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JP2006183839A5 (en
JP4660186B2 (en
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Takuji Nakamura
拓司 中村
Yoshio Hashioka
由男 橋岡
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Kitz Corp
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Kitz Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To hold a complete set of components of a joint member in a collected state after removal. <P>SOLUTION: A plurality of holding plates 66 inserted in an insertion hole 55 formed in a cap nut 54 which is one of components of a flexible expansion joint 50 are provided with projecting engaging pieces 67 at one ends, and the complete set of components of the flexible expansion joint 50 is engagedly held by the projecting engaging pieces 67. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、継手保持部材に係り、特に、複数の構成部品からなる継手部材の一式をまとまった状態で継手本体や、分水栓本体に着脱可能な継手保持部材に関する。   The present invention relates to a joint holding member, and more particularly, to a joint holding member that can be attached to and detached from a joint main body or a water faucet main body in a state where a set of joint members made up of a plurality of components is assembled.

従来、地中に埋設されている水道本管から給水支管を分岐させるために、配管を固定するための伸縮可撓式継手が具備されたサドル付分水栓が用いられている。伸縮可撓式継手100は、一般的に、図9に示すように、袋ナット101、ダストシール102、Oリング103、ロックリング104、ワッシャ105及びパッキン106といった6個の部品によって構成されている(例えば、特許文献1参照)。また、伸縮可撓式継手100としては、上述した6個の構成部品に、Oリングを具備するスペーサ(共に図示せず)を加えた計8個の構成部品からなる伸縮可撓式継手100も開示されている。   Conventionally, in order to branch a water supply branch pipe from a water main pipe buried in the ground, a water faucet with a saddle provided with an expansion / contraction flexible joint for fixing a pipe is used. The expansion / contraction flexible joint 100 is generally composed of six parts such as a cap nut 101, a dust seal 102, an O-ring 103, a lock ring 104, a washer 105, and a packing 106 as shown in FIG. For example, see Patent Document 1). In addition, as the expansion / contraction flexible joint 100, the expansion / contraction flexible joint 100 including a total of eight component parts, in which a spacer (both not shown) including an O-ring is added to the above-described six component parts. It is disclosed.

これら伸縮可撓式継手100は、配管接続作業において、一度サドル付分水栓から取り外された後、切粉を排出するためのドレン弁が取り付けられる。そして、穿孔作業が行われ、穿孔作業が終了した後、ドレン弁が取り外されて、再度伸縮可撓式継手が取り付けられる。その後、専用の溝付け工具によって溝付けされた配管が、伸縮可撓式継手を介してサドル付分水栓の内部に挿通され、袋ナット101を締結することに伴うロックリング104の変形により、挿通された配管が固定されるようになっている。
特開平9−242914号公報
These expansion / contraction flexible joints 100 are attached with a drain valve for discharging chips after being removed from the saddle-equipped water faucet once in pipe connection work. Then, after the drilling operation is performed and the drilling operation is completed, the drain valve is removed and the expansion / contraction flexible joint is attached again. Thereafter, the pipe grooved by the dedicated groove tool is inserted into the saddle-equipped water faucet through the expansion / contraction flexible joint, and the lock ring 104 is deformed by fastening the cap nut 101, The inserted pipe is fixed.
JP-A-9-242914

しかしながら、上述したサドル付分水栓の場合においては、穿孔作業が終了した後、上述したような伸縮可撓式継手の構成部品一式を、サドル分水栓の継手部に取り付け直す際に、図10に示すように、各構成部品の向きや、取り付け順序を把握した上で、取付作業を正確に行わなければならないため、取り付けに不具合が生じた場合には、配管の正しい施工が困難になるとともに、漏水等を生ずるおそれがある。   However, in the case of the above-described water faucet with a saddle, after the drilling operation is completed, when the set of components of the expansion / contraction flexible joint as described above is reattached to the joint portion of the saddle water faucet, As shown in FIG. 10, it is necessary to accurately perform the mounting operation after grasping the direction of each component and the mounting order. Therefore, in the case where a failure occurs in the mounting, it is difficult to correctly construct the piping. At the same time, there is a risk of water leakage.

また、配管の施工は、通常道路上や、掘削した地下において行われるため、サドル付分水栓から取り外した伸縮可撓式継手の構成部品一式は、一時的に地面及び土壌等に放置されることが多く、この際、構成部品の1つであるパッキンに粉塵及び砂等が付着することで、砂噛みや、損傷による漏水等を引き起こすといった問題も生ずるおそれがある。   In addition, pipe construction is usually performed on roads or in excavated underground, so the set of components of the telescopic flexible joint removed from the saddle-equipped water faucet is temporarily left on the ground, soil, etc. In many cases, dust and sand adhere to the packing, which is one of the component parts, and there is a risk of causing problems such as sand biting and water leakage due to damage.

本発明は前記した点に鑑みてなされたものであり、取り外し後における継手部材の構成部品一式を保持するとともに、継手部材の内部に対する防塵を図ることが可能な継手保持部材を提供することを目的とする。   The present invention has been made in view of the above points, and an object of the present invention is to provide a joint holding member that can hold a set of components of the joint member after removal and can protect the inside of the joint member from dust. And

以上の課題を解決するために、請求項1に記載の発明に係る継手保持部材は、
配管が挿入される挿入孔が形成された複数の部品からなる継手部材を組立状態で保持する継手保持部材であって、
前記挿入孔に挿入される一又は複数の保持部と、
前記保持部の一端に設けられ、前記継手部材における前記複数の部品を係合保持する係合部とを具備することを特徴とする。
In order to solve the above problems, the joint holding member according to the invention of claim 1 is
A joint holding member that holds a joint member composed of a plurality of parts formed with insertion holes into which pipes are inserted in an assembled state,
One or a plurality of holding parts inserted into the insertion hole;
And an engaging portion that is provided at one end of the holding portion and engages and holds the plurality of components in the joint member.

請求項1に記載の発明によれば、挿入孔に挿入される一又は複数の保持部と、保持部の一端に設けられ、継手部材における複数の部品を係合保持する係合部とを具備するので、係合部によって構成部品を係合保持することで、継手部材の構成部品の一式をまとまった状態で分水栓本体に着脱させることができる。   According to the first aspect of the present invention, there is provided one or a plurality of holding portions that are inserted into the insertion holes, and an engaging portion that is provided at one end of the holding portion and engages and holds a plurality of components in the joint member. Therefore, by engaging and holding the component parts by the engaging portion, the set of component parts of the joint member can be attached to and detached from the water faucet body in a state of being gathered.

請求項2に記載の発明に係る継手保持部材は、前記係合部が、前記挿入孔の外径方向に突出した形状であることを特徴とする。   The joint holding member according to a second aspect of the present invention is characterized in that the engaging portion has a shape protruding in the outer diameter direction of the insertion hole.

請求項2に記載の発明によれば、係合部が、挿入孔の外径方向に突出した形状であるので、簡易な構造によって継手部材における挿入方向の一端側に配置された部品に係合することができる。   According to the second aspect of the present invention, since the engaging portion has a shape protruding in the outer diameter direction of the insertion hole, it engages with a component arranged on one end side in the insertion direction of the joint member with a simple structure. can do.

請求項3に記載の発明に係る継手保持部材は、前記保持部が、当該保持部の他端に設けられ、前記継手部材の一端に係止する係止部を具備することを特徴とする。   The joint holding member according to a third aspect of the invention is characterized in that the holding portion includes an engaging portion that is provided at the other end of the holding portion and engages with one end of the joint member.

請求項3に記載の発明によれば、保持部が、保持部の他端に設けられ、継手部材の一端に係止する係止部を具備するので、係止部が継手部材の構成部品の1つである袋ナットの一端に係止することで、継手部材の挿入孔から継手保持部材が抜脱することを防止することができる。   According to the third aspect of the present invention, since the holding portion is provided at the other end of the holding portion and includes a locking portion that locks to one end of the joint member, the locking portion is a component of the joint member. By locking to one end of one cap nut, it is possible to prevent the joint holding member from being removed from the insertion hole of the joint member.

請求項4に記載の発明に係る継手保持部材は、前記係止部が、当該係止部の縁端部に、前記保持部の前記挿入方向に向かって突出したフランジ部が形成されていることを特徴とする。   In the joint holding member according to a fourth aspect of the present invention, the engaging portion is formed with a flange portion that protrudes toward the insertion direction of the holding portion at an edge end portion of the engaging portion. It is characterized by.

請求項4に記載の発明によれば、係止部の縁端部に、保持部の挿入方向に向かって突出したフランジ部が形成されているので、係止部と、継手部材の構成部品の1つである袋ナットとの接触箇所を外部から隠蔽することで、継手保持部材と、継手部材との密閉性の向上を図ることができる。   According to the fourth aspect of the present invention, since the flange portion protruding toward the insertion direction of the holding portion is formed at the edge end portion of the locking portion, the locking portion and the component parts of the joint member By concealing the contact portion with one cap nut from the outside, it is possible to improve the sealing performance between the joint holding member and the joint member.

請求項5に記載の発明に係る継手保持部材は、前記フランジ部が、当該フランジ部の内壁面に、内側に向かって突出した突出片が形成されていることを特徴とする。   The joint holding member according to the invention of claim 5 is characterized in that the flange portion is formed with a protruding piece protruding inward on an inner wall surface of the flange portion.

請求項5に記載の発明によれば、フランジ部の内壁面に、内側に向かって突出した突出片が形成されているので、係止部と、継手部材の構成部品の1つである袋ナットとの接触面積を低減させることで、継手保持部材と、継手部材との密着性の低減とともに、継手保持部材と袋ナットとの調芯を図ることができる。   According to invention of Claim 5, since the protrusion piece which protruded toward the inner side is formed in the inner wall surface of a flange part, the latching | locking part and the cap nut which is one of the components of a coupling member The contact area between the joint holding member and the joint member can be reduced, and the joint holding member and the cap nut can be aligned.

請求項6に記載の発明に係る継手保持部材は、前記係止部が、前記保持部の挿入後に前記挿入孔の開口を閉塞することを特徴とする。   In the joint holding member according to a sixth aspect of the invention, the locking portion closes the opening of the insertion hole after the holding portion is inserted.

請求項6に記載の発明によれば、係止部が、保持部の挿入後に挿入孔の開口を閉塞するので、砂や粉塵等が挿入孔から侵入することを防止することで、構成部品の1つであるパッキンにおける密着性の低下の抑制を図ることができる。   According to the invention described in claim 6, since the locking portion closes the opening of the insertion hole after the holding portion is inserted, it is possible to prevent intrusion of sand or dust from the insertion hole. It is possible to suppress a decrease in adhesion in one packing.

請求項1に記載の発明によれば、挿入孔に挿入される一又は複数の保持部と、保持部の一端に設けられ、継手部材における複数の部品を係合保持する係合部とを具備するので、係合部によって構成部品を係合保持することで、継手部材の構成部品の一式をまとまった状態で分水栓本体に着脱させることが可能となり、これによって、継手部材の分水栓本体等への着脱作業に対する作業者負担の軽減を図ることができる。   According to the first aspect of the present invention, there is provided one or a plurality of holding portions that are inserted into the insertion holes, and an engaging portion that is provided at one end of the holding portion and engages and holds a plurality of components in the joint member. Therefore, by engaging and holding the component parts by the engaging portion, it becomes possible to attach and detach the set of component parts of the joint member to the water faucet body in a collective state. It is possible to reduce the burden on the operator with respect to the attachment / detachment work to the main body or the like.

請求項2に記載の発明によれば、係合部が、挿入孔の外径方向に突出した形状であるので、簡易な構造によって継手部材における挿入方向の一端側に配置された部品に係合することが可能となり、これによって、継手部材に対する継手保持部材の着脱動作の容易化を図ることができる。   According to the second aspect of the present invention, since the engaging portion has a shape protruding in the outer diameter direction of the insertion hole, it engages with a component arranged on one end side in the insertion direction of the joint member with a simple structure. Accordingly, the attachment / detachment operation of the joint holding member with respect to the joint member can be facilitated.

請求項3に記載の発明によれば、保持部が、保持部の他端に設けられ、継手部材の一端に係止する係止部を具備するので、係止部が継手部材の構成部品の1つである袋ナットの一端に係止することで、継手部材の挿入孔から継手保持部材が抜脱することを防止することが可能となり、継手部材に対する継手保持部材の保持性の安定化を図ることができる。   According to the third aspect of the present invention, since the holding portion is provided at the other end of the holding portion and includes a locking portion that locks to one end of the joint member, the locking portion is a component of the joint member. By locking to one end of one cap nut, it becomes possible to prevent the joint holding member from being pulled out from the insertion hole of the joint member, and to stabilize the holding performance of the joint holding member with respect to the joint member. Can be planned.

請求項4に記載の発明によれば、係止部の縁端部に、保持部の挿入方向に向かって突出したフランジ部が形成されているので、係止部と、継手部材の構成部品の1つである袋ナットとの接触箇所を外部から隠蔽することで、継手保持部材と、継手部材との密閉性の向上を図ることが可能となり、これによって、係止部による防塵性を向上させ、漏洩等の発生の抑制を図ることができる。   According to the fourth aspect of the present invention, since the flange portion protruding toward the insertion direction of the holding portion is formed at the edge end portion of the locking portion, the locking portion and the component parts of the joint member By concealing the contact point with one cap nut from the outside, it becomes possible to improve the sealing performance between the joint holding member and the joint member, thereby improving the dust resistance by the locking portion. In addition, the occurrence of leakage and the like can be suppressed.

請求項5に記載の発明によれば、フランジ部の内壁面に、内側に向かって突出した突出片が形成されているので、係止部と、継手部材の構成部品の1つである袋ナットとの接触面積を低減させることで、継手保持部材と、継手部材との密着性の低減を図ることが可能となり、これによって、継手部材に対する継手保持部材の取り外し作業の容易化を図ることができる。
また、突出片により、継手保持部材と袋ナットとを調芯することが可能となり、これによって、継手部材に対する継手保持部材の保持性の安定化を図ることができる。
According to invention of Claim 5, since the protrusion piece which protruded toward the inner side is formed in the inner wall surface of a flange part, the latching | locking part and the cap nut which is one of the components of a coupling member By reducing the contact area between the joint holding member and the joint member, it becomes possible to reduce the adhesion between the joint holding member and the joint member from the joint member. .
Moreover, it becomes possible to align a joint holding member and a cap nut with a protrusion piece, and, thereby, stabilization of the holding property of the joint holding member with respect to a joint member can be aimed at.

請求項6に記載の発明によれば、係止部が、保持部の挿入後に挿入孔の開口を閉塞するので、砂や粉塵等が挿入孔から侵入することを防止することで、構成部品の1つであるパッキンにおける密着性の低下の抑制を図ることが可能となり、これによって、取り外し後における継手部材の維持管理に対する作業者負担の軽減を図ることができる。   According to the invention described in claim 6, since the locking portion closes the opening of the insertion hole after the holding portion is inserted, it is possible to prevent intrusion of sand or dust from the insertion hole. It is possible to suppress a decrease in adhesion in one packing, and thereby, it is possible to reduce the burden on the operator for maintenance of the joint member after removal.

以下、本発明を実施するための最良の形態について図面を用いて説明する。但し、以下に述べる実施形態には、本発明を実施するために技術的に好ましい種々の限定が付されているが、発明の範囲を以下の実施形態及び図示例に限定するものではない。
図1から図8を参照しながら、本発明に係る継手保持部材について説明する。
図1に示すように、本実施形態における継手保持部材1は、サドル付き分水栓2に取り付けられており、以下、サドル付き分水栓2の構造と併せて詳細に説明する。
The best mode for carrying out the present invention will be described below with reference to the drawings. However, although various technically preferable limitations for implementing the present invention are given to the embodiments described below, the scope of the invention is not limited to the following embodiments and illustrated examples.
The joint holding member according to the present invention will be described with reference to FIGS.
As shown in FIG. 1, the joint holding member 1 in the present embodiment is attached to a water faucet 2 with a saddle, and will be described in detail below together with the structure of the water faucet 2 with a saddle.

図1に示すように、サドル付き分水栓2は、大別して、水道本管Mに固定するサドル部3と、給水支管(図示せず)に対して流路を形成する分水栓本体4とから構成されている。
このうち、サドル部3は、図1に示すように、上下で対を形成し、相互間で水道本管Mを挟持するバンド5及びサドル6と、これらを互いに連結する4本のボルト7とから構成されている。
As shown in FIG. 1, the water faucet 2 with a saddle is roughly divided into a saddle portion 3 that is fixed to the water main pipe M, and a water faucet body 4 that forms a flow path for a water supply branch pipe (not shown). It consists of and.
Among these, as shown in FIG. 1, the saddle portion 3 includes a band 5 and a saddle 6 that form a pair vertically and sandwich the water main pipe M therebetween, and four bolts 7 that connect these to each other. It is composed of

バンド5は、鋳鉄材料によって断面形状略半円形状に成型された湾曲板であって、水道本管Mの下部側の外周壁面に接するようになっている。また、バンド5の両端部には、ボルト穴8が穿設されている。   The band 5 is a curved plate molded into a substantially semicircular cross section by a cast iron material, and comes into contact with the outer peripheral wall surface on the lower side of the water main pipe M. In addition, bolt holes 8 are formed at both ends of the band 5.

サドル6は、鋳鉄材料によって断面形状略半円形状に成型された湾曲板であって、水道本管Mの上部側の外周面に接するようになっている。また、サドル6の両端部には、ボルト穴9が穿設されている。このようなボルト穴9には、上述したサドル5のボルト穴8を介して挿入された六角ボルト7が挿入され、ボルトの一端側がナット11によって締結されることで、上述したバンド5と連結されている。   The saddle 6 is a curved plate formed into a substantially semicircular cross-sectional shape with a cast iron material, and is in contact with the outer peripheral surface on the upper side of the water main pipe M. In addition, bolt holes 9 are formed at both ends of the saddle 6. In such a bolt hole 9, a hexagonal bolt 7 inserted through the bolt hole 8 of the saddle 5 described above is inserted, and one end side of the bolt is fastened by a nut 11, thereby being connected to the band 5 described above. ing.

また、サドル6における湾曲部分の中間位置には、分水栓本体4を取り付けるための略四角形状の載置部12が具備されている。この載置部12には、図3に示すように、略円形状の凹部13が形成されている。さらに、サドル5には、載置部12における凹部13の底面から水道本管M側に向かって貫通した貫通穴14が形成されている。   In addition, a substantially rectangular mounting portion 12 for attaching the water faucet body 4 is provided at an intermediate position of the curved portion of the saddle 6. As shown in FIG. 3, the mounting portion 12 is formed with a substantially circular recess 13. Further, the saddle 5 is formed with a through hole 14 penetrating from the bottom surface of the recess 13 in the mounting portion 12 toward the water main M.

なお、バンド5のボルト穴8、サドル6のボルト穴9及びボルト7の本数については、特に限定されるものではなく、サドル付き分水栓2のサイズにより適宜変更することが可能である。   The numbers of the bolt holes 8 of the band 5, the bolt holes 9 of the saddle 6, and the bolts 7 are not particularly limited, and can be appropriately changed depending on the size of the water faucet 2 with the saddle.

載置部12の凹部13の面上には、ステンレス鋼によって略円筒形状に成型された環状保持体15が設けられている。この環状保持体15の下面には、略円形状の凹部16が凹設され、凹部16の内側には、下方に突出した略円筒形状の嵌入部17が延設されている。これら凹部16及び嵌入部17によって囲繞された空間には、NBR(Nitrile Butadiene Rubber)によって略円筒形状に成型されたサドルガスケット18の一端が嵌合されるようになっている。   On the surface of the concave portion 13 of the mounting portion 12, an annular holding body 15 formed in a substantially cylindrical shape by stainless steel is provided. A substantially circular recess 16 is formed in the lower surface of the annular holder 15, and a substantially cylindrical fitting portion 17 protruding downward is extended inside the recess 16. One end of a saddle gasket 18 molded into a substantially cylindrical shape by NBR (Nitrile Butadiene Rubber) is fitted into the space surrounded by the recess 16 and the insertion portion 17.

また、嵌入部17の下端部には、内側に向かって突出するフランジ部19が延設されている。このフランジ部19には、金属コア20、樹脂リング21及びゴム層22からなる略円筒形状に成型された挿入スリーブ23の一端が係止されており、嵌入部17に挿入スリーブ23が支持されるようになっている。   Further, a flange portion 19 that projects inwardly extends from the lower end portion of the fitting portion 17. One end of an insertion sleeve 23 formed in a substantially cylindrical shape including a metal core 20, a resin ring 21 and a rubber layer 22 is engaged with the flange portion 19, and the insertion sleeve 23 is supported by the insertion portion 17. It is like that.

一方、環状保持体15における嵌入部17の上端には、段差部24が形成されている。この段差部24の面上には、PTFE(Poly Tetra Fluoro Ethylene)等の樹脂によって略環状に成型された下部ボールシート25が設けられている。また、環状保持体15の外周壁面には、上端部から中途部にかけて雄ネジが螺刻され、環状保持体15の下端部には、外側に向かって突出する突出係止片26が延設されている。   On the other hand, a stepped portion 24 is formed at the upper end of the fitting portion 17 in the annular holder 15. On the surface of the stepped portion 24, there is provided a lower ball sheet 25 formed in a substantially annular shape by a resin such as PTFE (Poly Tetra Fluoro Ethylene). Further, a male screw is threaded on the outer peripheral wall surface of the annular holding body 15 from the upper end portion to the middle portion, and a protruding locking piece 26 that protrudes outward is extended at the lower end portion of the annular holding body 15. ing.

上述したサドル6、環状保持体15及び下部ボールシール25の上部側には、ステンレス鋼によって略球状に成型された分水栓本体4が設けられており、図1及び図2に示すように、この分水栓本体4の内部中央には、ボール弁体27を格納する弁室28が設けられている。
このうち、ボール弁体27は、ステンレス鋼によって略球状に成型されており、このボール弁体27には、図3に示すように、その中心を通過して貫通する貫通流路29と、この貫通流路29の中間位置から直交して分岐する分岐流路30とが形成されている。すなわち、ボール弁体27の内部には、略T字状の流路が形成されている。
On the upper side of the saddle 6, the annular holder 15 and the lower ball seal 25 described above, a water faucet body 4 molded in a substantially spherical shape with stainless steel is provided. As shown in FIGS. 1 and 2, A valve chamber 28 for storing a ball valve element 27 is provided in the center of the water faucet body 4.
Among these, the ball valve body 27 is formed into a substantially spherical shape with stainless steel, and as shown in FIG. A branch channel 30 is formed that branches perpendicularly from an intermediate position of the through channel 29. That is, a substantially T-shaped flow path is formed inside the ball valve body 27.

また、ボール弁体27には、図2及び図3に示すように、分岐流路30の中心線と同軸上であって、分岐流路30の開口部と反対側の位置に、断面形状凹状の係止部31が凹設されている。この係止部31には、略円柱状のステム32の一端部が挿入されており、挿入状態で固定されている。また、ステム32の他端部には、平坦に形成された切替操作部33が設けられ、分水栓本体4から外部に突出している。さらに、ステム32の中間部は、略円柱状に形成されるとともに、その外周壁面に2本の嵌合溝34,34及びステム32の回転範囲を制限する規制突起35が形成されており、このうち、嵌合溝34,34には、NBRによって成型されたOリング36,36がそれぞれ嵌合されている。
このように構成されたステム32は、切替操作部33に回転力を加えることにより、ボール弁体27を、水平方向を中心として回転させるようになっている。
2 and 3, the ball valve body 27 is coaxial with the center line of the branch flow path 30 and has a concave cross section at a position opposite to the opening of the branch flow path 30. The locking portion 31 is recessed. One end of a substantially cylindrical stem 32 is inserted into the locking portion 31 and is fixed in the inserted state. Further, the other end portion of the stem 32 is provided with a switching operation portion 33 formed flat, and protrudes from the water faucet body 4 to the outside. Further, the intermediate portion of the stem 32 is formed in a substantially cylindrical shape, and two fitting grooves 34 and 34 and a restriction projection 35 for limiting the rotation range of the stem 32 are formed on the outer peripheral wall surface thereof. Of these, O-rings 36 and 36 molded by NBR are fitted into the fitting grooves 34 and 34, respectively.
The stem 32 configured as described above is configured to rotate the ball valve element 27 around the horizontal direction by applying a rotational force to the switching operation portion 33.

さらに、弁室28の内部であって、ボール弁体27の上部側には、図1に示すように、PTFE等の樹脂によって略環状に成型された上部ボールシート37が設けられている。   Further, as shown in FIG. 1, an upper ball seat 37 formed in a substantially annular shape with a resin such as PTFE is provided inside the valve chamber 28 and on the upper side of the ball valve body 27.

上述した弁室28には、図1及び図2に示すように、水道本管Mに向かって略円筒形状の嵌合部38が延設されており、この嵌合部38には、略円形状に開口する第1開口部39が形成されている。この第1開口部39の内周壁面には、雌ネジが螺刻されており、環状保持体15の外周壁面に螺刻された雌ネジと螺合するようになっている。また、第1開口部39の内周壁面の下端部には、凹部40が形成されており、この凹部40、環状保持体15の外周壁面及び突出係止片26によって囲繞される空間には、NBRによって略環状に成型されたOリング41が設けられている。   As shown in FIGS. 1 and 2, the valve chamber 28 has a substantially cylindrical fitting portion 38 extending toward the water main pipe M, and the fitting portion 38 has a substantially circular shape. A first opening 39 opening in a shape is formed. A female screw is threaded on the inner peripheral wall surface of the first opening 39, and is screwed with the female screw threaded on the outer peripheral wall surface of the annular holder 15. Further, a recess 40 is formed at the lower end portion of the inner peripheral wall surface of the first opening 39, and in the space surrounded by the recess 40, the outer peripheral wall surface of the annular holder 15 and the protruding locking piece 26, An O-ring 41 is provided which is formed in a substantially annular shape by NBR.

さらに、弁室28には、図1に示すように、弁室28を挟んで水道本管Mと反対方向に向かって略円筒形状の第1装着部42が延設されており、この第1装着部42には、略円形状に開口する第2開口部43が形成されている。また、第1装着部42の外周壁面には、サドル付き分水栓2の水道本管Mへの取り付け時に使用する穿孔機(図示せず)を分水栓本体4に装着するための雄ネジが螺刻されている。
なお、第1装着部42には、キャップ部材44を装着することが可能であり、このキャップ部材44には、内側に雌ネジが螺刻され、ガスケット45を介して雄ネジが螺刻された第1装着部42に装着されるようになっている。
Further, as shown in FIG. 1, a substantially cylindrical first mounting portion 42 extends in the valve chamber 28 in the direction opposite to the water main pipe M with the valve chamber 28 interposed therebetween. The mounting portion 42 is formed with a second opening 43 that opens in a substantially circular shape. Further, on the outer peripheral wall surface of the first mounting portion 42, a male screw for mounting a drilling machine (not shown) used when attaching the water faucet 2 with saddle to the water main pipe M to the water faucet body 4. Is threaded.
A cap member 44 can be mounted on the first mounting portion 42, and a female screw is threaded on the cap member 44 and a male screw is threaded via the gasket 45. The first mounting portion 42 is mounted.

一方、弁室28には、嵌合部38における第1開口部39及び第1装着部42における第2開口部43の軸線方向に直交する方向に沿って、略円筒形状の支持部46が延設されている。この支持部46には、略円形状に開口する挿通孔47が形成されており、上述したステム32が挿通され、ステム32の嵌合溝34,34に嵌合されたOリング36,36が挿通孔47の内周壁面と圧着するようになっている。   On the other hand, a substantially cylindrical support 46 extends in the valve chamber 28 along a direction orthogonal to the axial direction of the first opening 39 in the fitting portion 38 and the second opening 43 in the first mounting portion 42. It is installed. An insertion hole 47 that opens in a substantially circular shape is formed in the support portion 46, and the above-described stem 32 is inserted, and O-rings 36 and 36 fitted into the fitting grooves 34 and 34 of the stem 32 are formed. The inner peripheral wall surface of the insertion hole 47 is crimped.

また、弁室28には、弁室28を挟んで支持部46と反対方向に向かって第2装着部48が延設されている。この第2装着部48には、略円形状に開口する挿入孔49が形成され、水道本管Mに対して分岐する配管が挿入されるようになっている。また、第2装着部48の一端部の外周壁面には、図1及び図3に示すように、雄ネジが螺刻され、継手部材である伸縮可撓式継手50が取り付けられている。   The valve chamber 28 has a second mounting portion 48 extending in the opposite direction to the support portion 46 with the valve chamber 28 interposed therebetween. An insertion hole 49 that opens in a substantially circular shape is formed in the second mounting portion 48, and a pipe branched from the water main pipe M is inserted therein. Further, as shown in FIGS. 1 and 3, an expansion / contraction flexible joint 50 that is a joint member is attached to the outer peripheral wall surface of one end of the second mounting portion 48 as shown in FIGS. 1 and 3.

伸縮可撓式継手50には、図4に示すように、略円筒形状の円筒部51と、一端に向かって断面積が漸次減少するような形状のテーパ部52とを接合したような形状であって、これら円筒部51と、テーパ部52との間に、段差部53が形成された袋ナット54が具備されている。この袋ナット54には、一端から他端にかけて挿入孔55が形成されており、挿入孔55における円筒部51の内周壁面には、雌ネジが螺刻されており、上述した第2装着部48の一端部の外周壁面に螺刻された雄ネジと螺合するようになっている。   As shown in FIG. 4, the expansion / contraction flexible joint 50 has a shape in which a cylindrical portion 51 having a substantially cylindrical shape and a tapered portion 52 having a shape in which a cross-sectional area gradually decreases toward one end are joined. A cap nut 54 in which a stepped portion 53 is formed is provided between the cylindrical portion 51 and the tapered portion 52. An insertion hole 55 is formed in the cap nut 54 from one end to the other end. A female screw is threaded on the inner peripheral wall surface of the cylindrical portion 51 in the insertion hole 55, and the second mounting portion described above is formed. 48 is threadedly engaged with a male screw threaded on the outer peripheral wall surface of one end portion.

このように構成された袋ナット54におけるテーパ部52の縁端部には、ゴム等の弾性部材によって成型され、表面上にテフロン樹脂液が塗布されたダストシール56が設けられている。このダストシール56の内周は、伸縮可撓式継手50に接続される配管の外周と接する寸法に設定されており、この部位から継手内部に粉塵等が侵入することを防止するようになっている。また、ダストシール56の表面上に塗布されたテフロン樹脂液は、配管の挿入を円滑するための潤滑液として作用するようになっている。さらに、袋ナット54の内側の段差部53には、Oリング57が設けられている。   A dust seal 56 formed of an elastic member such as rubber and coated with a Teflon resin liquid is provided on the edge of the tapered portion 52 of the cap nut 54 thus configured. The inner periphery of the dust seal 56 is set to a size that contacts the outer periphery of the pipe connected to the expansion / contraction flexible joint 50, and dust and the like are prevented from entering the joint from this portion. . Further, the Teflon resin liquid applied on the surface of the dust seal 56 acts as a lubricating liquid for smooth piping insertion. Further, an O-ring 57 is provided in the stepped portion 53 inside the cap nut 54.

また、袋ナット54におけるテーパ部52には、略環状に成型され、周面に沿って複数のボールが配設されたロックリング58が配置されている。このロックリング58は、第2装着部48の雄ネジに対して袋ナット54の雌ネジを螺合させることに伴って、袋ナット54におけるテーパ部52の内周壁面がロックリング58の外周から押圧することにより、中心方向に縮径し、伸縮可撓式継手50に保持される配管を保持するようになっている。   In addition, the tapered portion 52 of the cap nut 54 is provided with a lock ring 58 that is formed in a substantially annular shape and in which a plurality of balls are disposed along the circumferential surface. In the lock ring 58, the inner peripheral wall surface of the taper portion 52 of the cap nut 54 extends from the outer periphery of the lock ring 58 as the female screw of the cap nut 54 is screwed into the male screw of the second mounting portion 48. By pressing, the diameter is reduced in the central direction, and the pipe held by the expansion / contraction flexible joint 50 is held.

一方、袋ナット54における円筒部51には、袋ナット54と第2装着部48とのシールを図るパッキン59と、段差部53に係止され、ロックリング58とパッキン59との間に配置された環状のワッシャ60とがそれぞれ配設されている。このうち、パッキン59は、ゴム等の弾性部材からなり、袋ナット54の締め込みによって、ワッシャ60を介して第2装着部48のテーパ部に押圧されることにより、中心方向に縮径し、伸縮可撓式継手50に保持される配管と密着し、シールするようになっている。すなわち、伸縮可撓式継手50は、上述した袋ナット54、ダストシール56、Oリング57、ロックリング58、パッキン59及びワッシャ60の計6つの部品によって構成されている。   On the other hand, in the cylindrical portion 51 of the cap nut 54, the packing 59 that seals the cap nut 54 and the second mounting portion 48 and the stepped portion 53 are engaged, and are arranged between the lock ring 58 and the packing 59. An annular washer 60 is provided. Among these, the packing 59 is made of an elastic member such as rubber, and is pressed against the taper portion of the second mounting portion 48 via the washer 60 by tightening the cap nut 54, thereby reducing the diameter in the center direction. The pipe is held in close contact with the expansion / contraction flexible joint 50 and sealed. That is, the expansion / contraction flexible joint 50 is composed of a total of six parts including the above-described cap nut 54, dust seal 56, O-ring 57, lock ring 58, packing 59, and washer 60.

なお、本実施形態における伸縮可撓式継手50は、上述したような6つの部品から構成されているが、特に限定されるものではなく、図5に示すように、これら6つの部品に、第2装着部の内周と接する大径部61aと、この大径部61aよりも内方に位置する小径
部61bと、これらを接続するテーパ部61cとからなるスペーサ61と、スペーサ61の大径部61aの外周壁面に形成された嵌合溝に嵌合されるOリング62とを加えた計8つの部品によって構成されていてもよい。このようなスペーサ61を用いることにより、第2装着部48を共通としつつ、異なる呼び径の配管を接続することができるようになっている。
また、本実施例において、上述した第2装着部48、袋ナット54及びスペーサ61は、ステンレスによって成型されている。
In addition, although the expansion / contraction flexible joint 50 in this embodiment is comprised from six parts as mentioned above, it is not specifically limited, As shown in FIG. 2 Spacer 61 composed of a large diameter portion 61a in contact with the inner periphery of the mounting portion, a small diameter portion 61b positioned inward of the large diameter portion 61a, and a tapered portion 61c connecting them, and a large diameter of the spacer 61 You may be comprised by the total of 8 components which added the O-ring 62 fitted to the fitting groove formed in the outer peripheral wall surface of the part 61a. By using such a spacer 61, pipes having different nominal diameters can be connected while using the second mounting portion 48 in common.
In the present embodiment, the second mounting portion 48, the cap nut 54, and the spacer 61 described above are molded from stainless steel.

上述した伸縮可撓式継手50には、図6に示すような着脱自在な継手保持部材1が装着されている。この継手保持部材1には、略円形状に成型された閉塞板(係止部)63が具備され、袋ナット54の外周に係止するようになっている。この閉塞板63の周縁部には、閉塞板63の一面と直交する方向にフランジ部64が延設されている。このフランジ部64の内壁面には、図7に示すように、閉塞板63の中心方向に向かって1mm程突出した複数の突出片65が、閉塞板63の中心に対して等角度間隔に配設されている。この突出片65は、伸縮可撓式継手50を構成する部品である袋ナット54の一端(外周)に係止することにより、継手保持部材1を伸縮可撓式継手50に保持することができるようになっている。また、この袋ナット54の外周は、テーパ部52の外周となっているので、継手保持部材1がテーパによって調芯され、安定した状態で袋ナット54に係止されるようになっている。さらに、突出片65と突出片65との間の領域64aは、フランジ部64と袋ナット54との間に空間を形成する領域となるので、継手保持部材1を伸縮可撓式継手50から取り外す際に、作業者は前記領域64aに手を掛けて取り外しを行うことができるようになっている。
なお、閉塞板63は、袋ナット54の外周に係止せず、袋ナット54における配管挿入側の端面54bに当接するようになっていてもよい。
A detachable joint holding member 1 as shown in FIG. 6 is attached to the expansion / contraction flexible joint 50 described above. The joint holding member 1 is provided with a closing plate (locking portion) 63 formed in a substantially circular shape and is locked to the outer periphery of the cap nut 54. A flange portion 64 extends from the peripheral edge of the closing plate 63 in a direction perpendicular to one surface of the closing plate 63. On the inner wall surface of the flange portion 64, as shown in FIG. 7, a plurality of protruding pieces 65 protruding about 1 mm toward the central direction of the closing plate 63 are arranged at equal angular intervals with respect to the center of the closing plate 63. It is installed. The protruding piece 65 can hold the joint holding member 1 on the telescopic flexible joint 50 by engaging with one end (outer periphery) of a cap nut 54 that is a component constituting the telescopic flexible joint 50. It is like that. Further, since the outer periphery of the cap nut 54 is the outer periphery of the taper portion 52, the joint holding member 1 is aligned by the taper and is locked to the cap nut 54 in a stable state. Further, since the region 64 a between the protruding piece 65 and the protruding piece 65 becomes a region that forms a space between the flange portion 64 and the cap nut 54, the joint holding member 1 is removed from the telescopic flexible joint 50. At this time, the operator can reach the area 64a and remove it.
The closing plate 63 may not be engaged with the outer periphery of the cap nut 54, but may come into contact with the end surface 54b on the pipe insertion side of the cap nut 54.

また、閉塞板63のフランジ部64が延設された面と同一面上には、袋ナット54に装着されているダストシール56の内径よりも小径の支持筒部66aが一体となって形成されており、この支持筒部66aの円周上に沿って、略長方形状に成型された計6枚の保持板(保持部)66が、円周の中心に対して等角度間隔に分割して配設されている。すなわち、閉塞板63は、支持筒部66aを介して保持板66の一端に設けられている。支持筒部66aは、ダストシール56の幅(継手の軸方向長さ)よりも長く形成されており、継手保持部材1を伸縮可撓式継手50に装着することにより、ダストシール56を保護する機能を有している。また、支持筒部66aの配設により、保持板66の基部が補強されることに加え、保持板66の可撓支点が閉塞板63よりも継手内方に位置し、保持板66の長さが適度に短くなることで、保持板66が伸縮可撓式継手50の構成部品を一体に保持する強度を確保するようになっている。
ここで、保持板66を含む継手保持部材1は、プラスチック等の合成樹脂によって形成されており、保持板66は、可撓性を有している。
Further, a support cylinder portion 66a having a smaller diameter than the inner diameter of the dust seal 56 attached to the cap nut 54 is integrally formed on the same surface as the surface on which the flange portion 64 of the closing plate 63 extends. A total of six holding plates (holding portions) 66 formed in a substantially rectangular shape are arranged along the circumference of the support cylinder portion 66a at equal angular intervals with respect to the center of the circumference. It is installed. That is, the closing plate 63 is provided at one end of the holding plate 66 via the support cylinder portion 66a. The support cylinder portion 66a is formed longer than the width of the dust seal 56 (the axial length of the joint), and has a function of protecting the dust seal 56 by attaching the joint holding member 1 to the telescopic flexible joint 50. Have. In addition to the reinforcement of the base portion of the holding plate 66 due to the arrangement of the support cylinder portion 66a, the flexible fulcrum of the holding plate 66 is located inward of the joint with respect to the closing plate 63, and the length of the holding plate 66 is increased. As a result, the holding plate 66 secures the strength to hold the components of the telescopic flexible joint 50 together.
Here, the joint holding member 1 including the holding plate 66 is made of synthetic resin such as plastic, and the holding plate 66 has flexibility.

さらに、これら保持板66の一端には、外径方向に突出した突起状の突出係合片(係合部)67が形成されている。この突出係合片67は、継手保持部材1を伸縮可撓式継手50に装着すると、パッキン59に係合されるようになっている。この際、パッキン59と、袋ナット54の段差部53とにより、ロックリング58及びワッシャ60が挟持されるようになっている。   Further, at one end of these holding plates 66, a protruding engagement piece (engagement portion) 67 is formed that protrudes in the outer diameter direction. The protrusion engaging piece 67 is adapted to be engaged with the packing 59 when the joint holding member 1 is attached to the telescopic flexible joint 50. At this time, the lock ring 58 and the washer 60 are sandwiched between the packing 59 and the stepped portion 53 of the cap nut 54.

上述した突出係合片67の先端側は、先端に向かって縮径するテーパ面67aとなっており、継手保持部材1を伸縮可撓式継手50に円滑に挿入することができるようになっている。ここで、配管接続前における伸縮可撓式継手50のパッキン59の内径は、配管の挿入を容易にするため、ダストシール56の内径よりも大径となっている。また、このパッキン59と係合する突出係合片67の外径は、ダストシール56の内径よりも大径に設定されているので、継手保持部材1を伸縮可撓式継手50に挿入する際に、突出係合片67がダストシール56に触れてしまう。しかし、突出係合片67は、等角度間隔に分割して配設されているので、ダストシール56の内周に触れる面積が突出係合片67の間隔分だけ少なくなることで、ダストシール56の表面上に塗布された潤滑液が拭い取られることを抑制するようになっている。
一方、突出係合片67の後端側は、支持筒部66aに向かって縮径するテーパ面67bとなっており、このテーパ面67bがパッキン59に係止するようになっている。継手保持部材1を伸縮可撓式継手50から抜脱する際には、このテーパ面67bによって円滑に抜脱することができるようになっている。
The tip end side of the protruding engagement piece 67 described above is a tapered surface 67a whose diameter is reduced toward the tip end, so that the joint holding member 1 can be smoothly inserted into the telescopic flexible joint 50. Yes. Here, the inner diameter of the packing 59 of the expansion / contraction flexible joint 50 before the pipe connection is larger than the inner diameter of the dust seal 56 in order to facilitate the insertion of the pipe. Further, since the outer diameter of the protruding engagement piece 67 that engages with the packing 59 is set to be larger than the inner diameter of the dust seal 56, when the joint holding member 1 is inserted into the telescopic flexible joint 50. The protruding engagement piece 67 touches the dust seal 56. However, since the projecting engagement pieces 67 are divided and arranged at equal angular intervals, the area touching the inner periphery of the dust seal 56 is reduced by the distance of the projecting engagement pieces 67, so that the surface of the dust seal 56 is obtained. The lubricating liquid applied on the top is prevented from being wiped off.
On the other hand, the rear end side of the projecting engagement piece 67 is a tapered surface 67 b that decreases in diameter toward the support tube portion 66 a, and this tapered surface 67 b is engaged with the packing 59. When the joint holding member 1 is pulled out from the telescopic flexible joint 50, the tapered surface 67b can be smoothly pulled out.

なお、本実施形態における継手保持部材1には、伸縮可撓式継手50が呼び径50A専用の場合、計6枚の保持板66が配設されているが、これら保持板66の枚数は、特に限定されるものではなく、例えば、図5に示すような呼び径40A及び30A専用の伸縮可撓式継手50の場合には、挿入孔の円周が小さくなるため、計4枚の保持板66が配設されていることが好ましく、伸縮可撓式継手の形状等に応じて、適宜選択することが可能である。   The joint holding member 1 in this embodiment is provided with a total of six holding plates 66 when the expansion / contraction flexible joint 50 is exclusively used for the nominal diameter 50A. The number of the holding plates 66 is as follows. For example, in the case of the expansion / contraction flexible joint 50 dedicated to the nominal diameters 40A and 30A as shown in FIG. 5, the circumference of the insertion hole becomes small, so that a total of four holding plates are used. 66 is preferably disposed, and can be appropriately selected according to the shape of the expansion / contraction flexible joint.

また、本実施形態における継手保持部材1の突出係合片67は、外径方向に突出した突起状に成型されているが、特に限定されるものではなく、例えば、半円球状のような形状ものであってもよい。なお、上述した図5に示すような呼び径30A及び40A専用の伸縮可撓式継手50の場合には、小径部61bを有する金属製のスペーサ61も係合保持するため、突出係合片67の径方向の径方向長さtは、図6に示すような呼び径50A専用の伸縮可撓式継手50と比較して、厚く設定されている。   Moreover, although the protrusion engagement piece 67 of the joint holding member 1 in the present embodiment is molded into a protruding shape protruding in the outer diameter direction, it is not particularly limited, for example, a shape like a semi-spherical shape It may be a thing. In the case of the expansion / contraction flexible joint 50 dedicated to the nominal diameters 30A and 40A as shown in FIG. 5 described above, the metal spacer 61 having the small diameter portion 61b is also engaged and held. The radial length t in the radial direction is set thicker than that of the expansion / contraction flexible joint 50 dedicated to the nominal diameter 50A as shown in FIG.

さらに、本実施形態における継手保持部材1においては、伸縮可撓式継手50の配管挿入孔の開口、すなわち、袋ナット54における配管挿入孔54aの開口を閉塞する閉塞板63にフランジ部64を延設するとともに、閉塞板63に支持筒部66aを一体に形成しているが、閉塞板63を設けずに、図8に示すように、継手の端部に係止又は当接して、袋ナット54の先端部付近を保護する環状板70を具備し、この環状板70の外周縁部にフランジ部64を延設し、内周縁部に支持筒部66aが延設されていてもよい。   Further, in the joint holding member 1 in the present embodiment, the flange portion 64 is extended to the closing plate 63 that closes the opening of the pipe insertion hole of the expansion / contraction flexible joint 50, that is, the opening of the pipe insertion hole 54 a of the cap nut 54. The supporting cylinder portion 66a is formed integrally with the closing plate 63, but without the closing plate 63, it is locked or abutted on the end of the joint as shown in FIG. An annular plate 70 that protects the vicinity of the front end portion of 54 may be provided, a flange portion 64 may be extended to the outer peripheral edge portion of the annular plate 70, and a support cylinder portion 66a may be extended to the inner peripheral edge portion.

次に、本実施形態における継手保持部材1の作用について説明する。
まず始めに、穿孔対象である水道本管Mの表面をウェス等で清掃するとともに、サドル付分水栓2にサドルガスケット18が取り付けられていることを確認する。確認後、水道本管Mを上下からサドル6と、バンド5とによって挟み、これらバンド5及びサドル6を4本のボルト7で連結することにより、サドル付き分水栓2を水道本管Mに固定する。この際、各ボルト7は、片締めに注意しながら、均等に締め付ける。
Next, the operation of the joint holding member 1 in this embodiment will be described.
First, the surface of the water main pipe M to be perforated is cleaned with a waste cloth or the like, and it is confirmed that the saddle gasket 18 is attached to the saddle-equipped water faucet 2. After confirmation, the water main pipe M is sandwiched between the saddle 6 and the band 5 from above and below, and the band 5 and the saddle 6 are connected by four bolts 7 so that the water faucet 2 with saddle is connected to the water main pipe M. Fix it. At this time, the bolts 7 are tightened evenly while paying attention to one-side tightening.

次に、伸縮可撓式継手50の構成部品である袋ナット54、ダストシール56、Oリング57、ロックリング58、パッキン59及びワッシャ60を、継手保持部材1とともに第2装着部48から取り外し、取り外した後の第2装着部48にドレン弁(図示せず)を取り付ける。ドレン弁の取り付けが完了した後、分水栓本体4における貫通流路29及び分岐流路30が弁開状態になっていることを確認する。   Next, the cap nut 54, the dust seal 56, the O-ring 57, the lock ring 58, the packing 59, and the washer 60, which are components of the telescopic flexible joint 50, are removed from the second mounting portion 48 together with the joint holding member 1 and removed. After that, a drain valve (not shown) is attached to the second mounting portion 48. After the installation of the drain valve is completed, it is confirmed that the through flow passage 29 and the branch flow passage 30 in the water faucet body 4 are in the valve open state.

弁の開閉状態の確認後、分水栓本体4における第1装着部42からキャップ部材44及びガスケット48を取り外し、第1装着部42の雄ネジにアダプタを介して穿孔機(図示せず)を取り付ける。そして、穿孔機の穿孔刃具(図示せず)を第1装着部42からボール弁体27の貫通流路29及び嵌合部38の第1開口部39を通して下降させ、水道本管Mの上面側の周壁面を穿孔する。   After confirming the open / closed state of the valve, the cap member 44 and the gasket 48 are removed from the first mounting portion 42 of the water faucet body 4, and a perforator (not shown) is connected to the male screw of the first mounting portion 42 via an adapter. Install. Then, a drilling tool (not shown) of the drilling machine is lowered from the first mounting portion 42 through the through passage 29 of the ball valve body 27 and the first opening 39 of the fitting portion 38, and the upper surface side of the water main M Perforate the peripheral wall of

穿孔作業が終了した後、穿孔刃具を上昇させて、穿孔刃具を水道本管Mから完全に抜脱させ、分水栓本体4のステム32を操作することにより、ボール弁体27を時計回りの方向に90°回転させて弁閉状態とし、下部ボールシート25によってボール弁体27の分岐流路30から流出しようとする水道水を封止させる。そして、分水栓本体4から穿孔機を取り外し、前記アダプタを介してスリーブ挿入機(図示せず)を取り付ける。その後、ステム32を操作し、ボール弁体27を反時計回りの方向に90°回転させて弁開状態とする。   After the drilling operation is completed, the drilling tool is raised, the drilling tool is completely removed from the water main M, and the stem 32 of the water faucet body 4 is operated, whereby the ball valve element 27 is rotated clockwise. The valve is closed by rotating 90 ° in the direction, and the tap water which is about to flow out from the branch flow path 30 of the ball valve body 27 is sealed by the lower ball seat 25. Then, the punching machine is removed from the water faucet body 4, and a sleeve insertion machine (not shown) is attached through the adapter. Thereafter, the stem 32 is operated, and the ball valve body 27 is rotated 90 ° counterclockwise to open the valve.

さらに、スリーブ取付治具(図示せず)を、ボール弁体27の貫通流路29を介して下降させ、環状保持体15の嵌入部17から水道本管Mに穿設した穿孔穴にかけて挿入スリーブ23を取り付ける。この際、挿入スリーブ23の一端が、環状保持体15の嵌入部17の下端部内周に設けられたフランジ部19に係止され、挿入スリーブが穿孔穴に密着し、穿孔穴の防食をする。
そして、スリーブ挿入機(図示せず)を上昇させ、再びボール弁体27を90°回転させて弁閉状態とする。
Further, a sleeve mounting jig (not shown) is lowered through the through flow passage 29 of the ball valve body 27 and is inserted from the fitting portion 17 of the annular holding body 15 to the perforated hole drilled in the water main pipe M. 23 is attached. At this time, one end of the insertion sleeve 23 is locked to the flange portion 19 provided on the inner periphery of the lower end portion of the fitting portion 17 of the annular holding body 15, and the insertion sleeve comes into close contact with the perforated hole to prevent corrosion of the perforated hole.
Then, the sleeve insertion machine (not shown) is raised, and the ball valve body 27 is rotated 90 ° again to close the valve.

次に、第2装着部48からドレン弁を取り外し、伸縮可撓式継手50の構成部品の一式を、継手保持部材1とともに、第2装着部48に再度取り付ける。そして、継手保持部材1のみを第2装着部48に接続された伸縮可撓式継手50から取り外し、給水支管を伸縮可撓式継手50に配管した後、再度ボール弁体27を反時計回りの方向に90°回転させて弁開状態とし、一連の水道本管Mからの分岐作業が完了する。   Next, the drain valve is removed from the second mounting portion 48, and a set of components of the telescopic flexible joint 50 is attached to the second mounting portion 48 together with the joint holding member 1. Then, after removing only the joint holding member 1 from the expansion / contraction flexible joint 50 connected to the second mounting portion 48 and piping the water supply branch pipe to the expansion / contraction flexible joint 50, the ball valve body 27 is again rotated counterclockwise. The valve is opened by rotating 90 ° in the direction, and a series of branch operations from the water main M is completed.

このとき、伸縮可撓式継手50に装着された継手保持部材1における保持板66の突出係合片67は、その弾性力により、伸縮可撓式継手50の構成部品の1つであるパッキン59を係止している。したがって、一連の分岐作業の中において、伸縮可撓式継手50を第2装着部48から取り外す際には、袋ナット54の取り外しに伴って、パッキン59と袋ナット54における段差部53とによって挟持されているワッシャ60、並びにワッシャ64と袋ナット54との間に介在されているOリング57、ロックリング58及びダストシール56といった伸縮可撓式継手50の構成部品の一式をまとまった状態で取り外すことができる。
一方、伸縮可撓式継手50を第2装着部48に取り付ける際には、継手保持部材1により、伸縮可撓式継手50の構成部品の一式をまとまった状態で取り付けることができるので、構成部品の向きや、取り付け順序の誤りを防止することができる。
At this time, the protruding engagement piece 67 of the holding plate 66 in the joint holding member 1 attached to the expansion / contraction flexible joint 50 is a packing 59 which is one of the components of the expansion / contraction flexible joint 50 due to its elastic force. Is locked. Therefore, when the expansion / contraction flexible joint 50 is removed from the second mounting portion 48 in a series of branching operations, it is sandwiched between the packing 59 and the stepped portion 53 of the cap nut 54 when the cap nut 54 is removed. A set of components of the expansion / contraction flexible joint 50 such as the washer 60 and the O-ring 57, the lock ring 58, and the dust seal 56 interposed between the washer 64 and the cap nut 54. Can do.
On the other hand, when attaching the expansion / contraction flexible joint 50 to the second mounting portion 48, the joint holding member 1 can attach a set of constituent parts of the expansion / contraction flexible joint 50 together. Incorrect orientation and mounting order can be prevented.

また、継手保持部材1を伸縮可撓式継手50に装着した場合では、突出係合片67は、テーパ面67bをパッキン59に係止しているので、係止部分における弾発力の継手内方への分力により、継手保持部材1が突出係合片67を介して伸縮可撓式継手50の内方に引き込まれる力が生じ、保持板66及び支持筒部66aの一端に設けられている閉塞板63を継手の挿入孔の開口に密着することで、伸縮可撓式継手50が接続されたサドル付き分水栓2を始めとする、継手内部への粉塵等の侵入を効果的に防止することで、パッキン59の密着性の低下を抑制することができる。同時に、ダストシール56への粉塵等の付着を防止することで、ダストシール56の潤滑性の低下を抑制することができる。   Further, when the joint holding member 1 is mounted on the telescopic flexible joint 50, the projecting engagement piece 67 engages the taper surface 67b with the packing 59. Due to the component force in the direction, a force is generated in which the joint holding member 1 is pulled inward of the telescopic flexible joint 50 via the projecting engagement piece 67 and is provided at one end of the holding plate 66 and the support cylinder portion 66a. By closely contacting the closing plate 63 that is in contact with the opening of the insertion hole of the joint, it is possible to effectively intrude dust and the like into the joint, including the saddle-equipped water faucet 2 to which the expansion / contraction flexible joint 50 is connected. By preventing the deterioration of the adhesion of the packing 59, it can be suppressed. At the same time, by preventing the dust seal 56 from adhering to the dust seal 56, it is possible to suppress a decrease in the lubricity of the dust seal 56.

さらに、閉塞板63の周縁部には、保持板66の挿入方向に向かって突出したフランジ部64が設けられているので、閉塞板63と、伸縮可撓式継手50の袋ナット54との接触箇所を隠蔽することにより、継手保持部材1と、伸縮可撓式継手50との密閉性の向上を図ることができる。   Furthermore, since the flange part 64 which protruded toward the insertion direction of the holding | maintenance board 66 is provided in the peripheral part of the obstruction board 63, contact with the obstruction board 63 and the cap nut 54 of the expansion-contraction flexible joint 50 is provided. By concealing the location, the sealability between the joint holding member 1 and the telescopic flexible joint 50 can be improved.

さらに、フランジ部64の内壁面に、内側に向かって突出した突出片65が形成されているので、閉塞板63と、伸縮可撓式継手50の袋ナット54との接触面積を低減させることにより、継手保持部材1と、伸縮可撓式継手50との密着性の低減とともに、継手保持部材1と袋ナット54との調芯を図ることができる。   Further, since the projecting piece 65 projecting inward is formed on the inner wall surface of the flange portion 64, the contact area between the closing plate 63 and the cap nut 54 of the telescopic flexible joint 50 is reduced. In addition to reducing the adhesion between the joint holding member 1 and the telescopic flexible joint 50, the joint holding member 1 and the cap nut 54 can be aligned.

なお、本実施形態においては、サドル付き分水栓2に装着された伸縮可撓式継手50に対して継手保持部材1を使用した例を示したが、本実施形態に限定されず、別途の継手本体を有する伸縮可撓式継手に適用してもよい。また、本実施形態における継手保持部品を用いて、継手のサイズ毎に、伸縮可撓式継手50の構成部品の一式をまとまった状態で保管しておき、顧客の注文に応じて、サドル付き分水栓2や、止水栓又は別途の継手本体に装着するようにしてもよい。   In the present embodiment, the example in which the joint holding member 1 is used for the expansion / contraction flexible joint 50 attached to the water faucet 2 with a saddle is shown, but the present invention is not limited to this embodiment, and a separate You may apply to the expansion-contraction flexible joint which has a joint main body. Further, using the joint holding component in the present embodiment, a set of components of the expansion / contraction flexible joint 50 is stored for each joint size in a bundled state, and a portion with a saddle is provided according to the customer's order. You may make it attach to the faucet 2, a stop cock, or another joint main body.

以上より、本実施形態における継手保持部材1によれば、袋ナット54に形成された挿入孔55に挿入される複数の保持板66と、保持板66の一端に設けられ、伸縮可撓式継手50における構成部品一式を係合保持する突出係合片67とを具備するので、突出係合片67が係合されたパッキン59と、袋ナット54における段差部53とによって、ロックリング58及びワッシャ60が挟持されることにより、伸縮可撓式継手50の構成部品の一式をまとまった状態で分水栓本体4に着脱させることが可能となり、これによって、伸縮可撓式継手50の分水栓本体4への着脱作業に対する作業者負担の軽減を図ることができる。   As described above, according to the joint holding member 1 in the present embodiment, the plurality of holding plates 66 to be inserted into the insertion holes 55 formed in the cap nut 54 and the one end of the holding plate 66 are provided. 50 is provided with a projecting engagement piece 67 that engages and holds a set of component parts 50, and the lock ring 58 and the washer are formed by the packing 59 engaged with the projecting engagement piece 67 and the stepped portion 53 of the cap nut 54. By clamping 60, it becomes possible to make it attach and detach to the water faucet body 4 in a state where a set of components of the telescopic flexible joint 50 is gathered, and thereby the water faucet of the telescopic flexible joint 50 It is possible to reduce the burden on the operator with respect to the attaching / detaching work to the main body 4.

また、突出係合片67が挿入孔の外径方向に突出した形状であるので、簡易な構造によって伸縮可撓式継手50におけるパッキン59に係合することが可能となり、これによって、伸縮可撓式継手50に対する継手保持部材1の着脱動作の容易化を図ることができる。   Further, since the protruding engagement piece 67 has a shape protruding in the outer diameter direction of the insertion hole, it is possible to engage with the packing 59 in the expansion / contraction flexible joint 50 with a simple structure, whereby the expansion / contraction flexibility is achieved. The attachment / detachment operation of the joint holding member 1 with respect to the type joint 50 can be facilitated.

さらに、保持板66の他端には、伸縮可撓式継手50における袋ナット54の一端に係止する閉塞板63を具備するので、閉塞板63が袋ナット54の一端に係止することで、袋ナット54の挿入孔55から継手保持部材1が抜脱することを防止することが可能となり、伸縮可撓式継手50に対する継手保持部材1の保持性の安定化を図ることができる。   Further, the other end of the holding plate 66 is provided with a closing plate 63 that is locked to one end of the cap nut 54 in the telescopic flexible joint 50, so that the closing plate 63 is locked to one end of the cap nut 54. Further, it is possible to prevent the joint holding member 1 from being pulled out from the insertion hole 55 of the cap nut 54, and it is possible to stabilize the holding performance of the joint holding member 1 with respect to the expansion / contraction flexible joint 50.

さらに、閉塞板63の周縁部には、閉塞板63の一面と直交する方向に突出したフランジ部64が設けられているので、閉塞板63と、伸縮可撓式継手50の袋ナット54との接触箇所を隠蔽することにより、継手保持部材1と、伸縮可撓式継手50との密閉性の向上を図ることが可能となり、これによって、これによって、閉塞板63による防塵性を向上させ、内部構成部品に粉塵及び砂等が付着することを防止して、砂噛みや、パッキン59の損傷による漏洩等の発生の抑制を図ることができる。   Furthermore, since the flange part 64 which protruded in the direction orthogonal to one surface of the obstruction board 63 is provided in the peripheral part of the obstruction board 63, the obstruction board 63 and the cap nut 54 of the expansion-contraction flexible joint 50 are provided. By concealing the contact location, it becomes possible to improve the sealing performance between the joint holding member 1 and the expansion / contraction flexible joint 50, thereby improving the dustproof property by the closing plate 63, By preventing dust and sand from adhering to the component parts, it is possible to suppress the occurrence of leakage or the like due to sand biting or damage to the packing 59.

さらに、フランジ部64の内壁面に、内側に向かって突出した突出片65が形成されているので、閉塞板63と、伸縮可撓式継手50の袋ナット54との接触面積を低減させることにより、継手保持部材1と、伸縮可撓式継手50との密着性の低減を図ることが可能となり、これによって、伸縮可撓式継手50に対する継手保持部材1の取り外し作業の容易化を図ることができる。
併せて、突出片65により、継手保持部材1と袋ナット54とを調芯することが可能となり、これによって、伸縮可撓式継手50に対する継手保持部材1の保持性の安定化を図ることができる。
Further, since the projecting piece 65 projecting inward is formed on the inner wall surface of the flange portion 64, the contact area between the closing plate 63 and the cap nut 54 of the telescopic flexible joint 50 is reduced. It is possible to reduce the adhesion between the joint holding member 1 and the expansion / contraction flexible joint 50, thereby facilitating the work of removing the joint holding member 1 from the expansion / contraction flexible joint 50. it can.
In addition, it is possible to align the joint holding member 1 and the cap nut 54 by the projecting piece 65, thereby stabilizing the holding performance of the joint holding member 1 with respect to the telescopic flexible joint 50. it can.

さらに、閉塞板63によって砂や粉塵等が挿入孔から侵入することを防止することにより、構成部品の1つであるパッキン59における密着性の低下の抑制を図ることが可能となり、これによって、取り外し後における伸縮可撓式継手50の維持管理に対する作業者負担の軽減を図ることができる。   Further, by preventing sand, dust and the like from entering through the insertion hole by the closing plate 63, it is possible to suppress a decrease in adhesion in the packing 59 which is one of the component parts. It is possible to reduce the burden on the operator for the maintenance of the expansion / contraction flexible joint 50 later.

サドル付き分水栓及び継手保持部材を示す縦断面図である。It is a longitudinal cross-sectional view which shows a water stopper with a saddle and a joint holding member. サドル付き分水栓の一部を拡大して示す縦断面図である。It is a longitudinal cross-sectional view which expands and shows a part of watering tap with a saddle. 図1における面IV−IVを示す横断面図である。FIG. 4 is a transverse sectional view showing a plane IV-IV in FIG. 1. 継手保持部材が装着された伸縮可撓式継手を拡大して示す断面図である。It is sectional drawing which expands and shows the expansion-contraction flexible joint with which the joint holding member was mounted | worn. 継手保持部材が装着された他の伸縮可撓式継手を拡大して示す断面図である。It is sectional drawing which expands and shows the other expansion-contraction flexible joint with which the joint holding member was mounted | worn. 本発明に係る継手保持部材を示す縦断面図である。It is a longitudinal section showing a joint holding member concerning the present invention. 本発明に係る継手保持部材を示す平面図である。It is a top view which shows the coupling holding member which concerns on this invention. 他の継手保持部材を示す斜視図である。It is a perspective view which shows another joint holding member. 伸縮可撓式継手の構成部品一式を示す縦断面図である。It is a longitudinal cross-sectional view which shows a set of components of an expansion-contraction flexible joint. 配管の装着時における伸縮可撓式継手の態様を示す縦断面図である。It is a longitudinal cross-sectional view which shows the aspect of the expansion-contraction flexible joint at the time of mounting | wearing of piping.

符号の説明Explanation of symbols

1 継手保持部材
2 サドル付分水栓
4 分水栓本体
50 伸縮可撓式継手
63 閉塞板
64 フランジ部
65 突出片
66 保持板
67 突出係合片
DESCRIPTION OF SYMBOLS 1 Joint holding member 2 Water faucet with saddle 4 Water faucet body 50 Telescopic flexible joint 63 Closure plate 64 Flange portion 65 Projection piece 66 Holding plate 67 Projection engagement piece

Claims (6)

配管が挿入される挿入孔が形成された複数の部品からなる継手部材を組立状態で保持する継手保持部材であって、
前記挿入孔に挿入される一又は複数の保持部と、
前記保持部の一端に設けられ、前記継手部材における前記複数の部品を係合保持する係合部とを具備することを特徴とする継手保持部材。
A joint holding member that holds a joint member composed of a plurality of parts formed with insertion holes into which pipes are inserted in an assembled state,
One or a plurality of holding parts inserted into the insertion hole;
A joint holding member provided at one end of the holding part, and an engaging part that engages and holds the plurality of components in the joint member.
前記係合部は、前記挿入孔の外径方向に突出した形状であることを特徴とする請求項1に記載の継手保持部材。   The joint holding member according to claim 1, wherein the engaging portion has a shape protruding in an outer diameter direction of the insertion hole. 前記保持部は、当該保持部の他端に設けられ、前記継手部材の一端に係止する係止部を具備することを特徴とする請求項1又は請求項2に記載の継手保持部材。   The joint holding member according to claim 1, wherein the holding portion includes a locking portion that is provided at the other end of the holding portion and that locks to one end of the joint member. 前記係止部は、当該係止部の縁端部に、前記保持部の前記挿入方向に向かって突出したフランジ部が形成されていることを特徴とする請求項1から請求項3のいずれか一項に記載の継手保持部材。   The flange portion that protrudes toward the insertion direction of the holding portion is formed at the edge portion of the locking portion, according to any one of claims 1 to 3. The joint holding member according to one item. 前記フランジ部は、当該フランジ部の内壁面に、内側に向かって突出した突出片が形成されていることを特徴とする請求項1から請求項4のいずれか一項に記載の継手保持部材。   The joint holding member according to any one of claims 1 to 4, wherein the flange portion is formed with a protruding piece protruding inward on an inner wall surface of the flange portion. 前記係止部は、前記保持部の挿入後に前記挿入孔の開口を閉塞することを特徴とする請求項1から請求項5のいずれか一項に記載の継手保持部材。   The joint holding member according to claim 1, wherein the locking portion closes an opening of the insertion hole after the holding portion is inserted.
JP2004380863A 2004-12-28 2004-12-28 Joint holding member and instrument comprising joint holding member and joint member Active JP4660186B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010053985A (en) * 2008-08-28 2010-03-11 Kitz Corp Snap tap with saddle
JP2013181574A (en) * 2012-02-29 2013-09-12 Kitz Corp Expansive/contractive and flexible joint, and snap tap with saddle using the same
CN114930071A (en) * 2019-12-27 2022-08-19 库帕-标准汽车(德国)有限责任公司 Pipe sleeve bolt for a pipe, in particular a brake pipe, provided with at least one flaring

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5758041B1 (en) * 2014-10-30 2015-08-05 株式会社オンダ製作所 Fitting mounting structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0291847U (en) * 1988-12-30 1990-07-20
US5636662A (en) * 1993-11-15 1997-06-10 Dana Corporation Quick connect cartridge assembly with plug
JPH09242914A (en) * 1996-03-11 1997-09-16 Kitz Corp Bite member for connection device and joint and valve using the member
JPH1130385A (en) * 1997-07-10 1999-02-02 Togo Seisakusho Corp Dustproof cap for connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0291847U (en) * 1988-12-30 1990-07-20
US5636662A (en) * 1993-11-15 1997-06-10 Dana Corporation Quick connect cartridge assembly with plug
JPH09242914A (en) * 1996-03-11 1997-09-16 Kitz Corp Bite member for connection device and joint and valve using the member
JPH1130385A (en) * 1997-07-10 1999-02-02 Togo Seisakusho Corp Dustproof cap for connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010053985A (en) * 2008-08-28 2010-03-11 Kitz Corp Snap tap with saddle
JP2013181574A (en) * 2012-02-29 2013-09-12 Kitz Corp Expansive/contractive and flexible joint, and snap tap with saddle using the same
CN114930071A (en) * 2019-12-27 2022-08-19 库帕-标准汽车(德国)有限责任公司 Pipe sleeve bolt for a pipe, in particular a brake pipe, provided with at least one flaring

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