JP2008095925A - Terminal pipe for header pipe - Google Patents

Terminal pipe for header pipe Download PDF

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Publication number
JP2008095925A
JP2008095925A JP2006281572A JP2006281572A JP2008095925A JP 2008095925 A JP2008095925 A JP 2008095925A JP 2006281572 A JP2006281572 A JP 2006281572A JP 2006281572 A JP2006281572 A JP 2006281572A JP 2008095925 A JP2008095925 A JP 2008095925A
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pipe
terminal
header
opening
locking piece
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Eiji Fujii
英司 藤井
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MARUICHI FUJII KK
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MARUICHI FUJII KK
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Priority to JP2006281572A priority Critical patent/JP2008095925A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To facilitate piping work by a simple structure, in regard to a terminal pipe for header pipe branched from a header for water supply, hot water supply or the like. <P>SOLUTION: A cover part 3 covering a joint 6 that is a connecting port of the header 5 and a connecting part 4 connectable with a protective pipe are integrally molded at both ends of a pipe body 2 of the terminal pipe 1, respectively. The pipe body 2 is adapted so that a terminal of a water distribution pipe connected to the header 5 can be inserted to the inside, the connecting part 4 includes a locking piece 42 integrally formed on the whole periphery of an opening part 41 so as to be bendable outside and inside the opening part 41, and is adapted so that the protective pipe having a groove on the outer circumference can be inserted through the opening part 41, and the locking piece is engageable with the groove. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、給水、給湯などのヘッダーから分岐されたヘッダー配管における端末管に関するものである。   The present invention relates to a terminal pipe in a header pipe branched from a header such as water supply or hot water supply.

本出願人は、特開２００５−１２１１５９号公報に記載の「ヘッダー配管における端末管」を提案した。この端末管は、管本体の外周面が溝によって蛇腹状に形成され、管本体内をヘッダーに接続される流水管の端末が貫通可能であり、先端にヘッダーの接続口となっている継手を覆うカバー部を設け、後端に係合部を有する接続部を設け、この接続部がコネクターを介して保護管と接続可能なものである。
端末管によるヘッダー配管の作業は、まず、端末管とコネクターとの接続作業をする。すなわち、端末管の接続部の下部をコネクター上部に差込み、係合部によってコネクターの上端開口内部に係合させることによって行う。ついで、流水管の上端部を保護管の下端側から通してこの上端部を上昇させて保護管、コネクター及び端末管を順次貫通させ、端末管より突出した段階でさらに流水管の上端部を上方に引っ張って継手まで達した時点で流水管の端末を継手に接続させる。その後、端末管のカバー部を上方に引っ張って上昇させると、端末管は伸張することになり、カバー部が継手を完全に覆う位置に達した段階で伸張操作を停止する。停止した段階でも、端末管の伸張状態が維持され、端末管によるヘッダー配管の作業を終える。
特開２００５−１２１１５９号公報 The present applicant has proposed a “terminal pipe in a header pipe” described in JP-A-2005-121159. This terminal pipe has an outer peripheral surface of the pipe body formed in a bellows shape by a groove, a terminal of a flowing water pipe connected to the header can be penetrated through the pipe body, and a joint serving as a connection port of the header at the tip A cover portion for covering is provided, and a connecting portion having an engaging portion is provided at the rear end, and this connecting portion can be connected to the protective tube via a connector.
In the header pipe work using the terminal pipe, first, the terminal pipe and the connector are connected. That is, the lower part of the connecting part of the terminal tube is inserted into the upper part of the connector and engaged with the inside of the upper end opening of the connector by the engaging part. Next, the upper end of the flowing water pipe is passed from the lower end side of the protective pipe, and the upper end is raised so that the protective pipe, the connector, and the terminal pipe are sequentially penetrated. When the pipe reaches the joint, the end of the water pipe is connected to the joint. Thereafter, when the cover part of the terminal pipe is pulled upward and lifted, the terminal pipe is extended, and the extension operation is stopped when the cover part reaches a position completely covering the joint. Even at the stage of stopping, the terminal pipe is maintained in the extended state, and the header piping work by the terminal pipe is completed.
JP 2005-121159 A

従来例の改善点は次のとおりである。
端末管はコネクターを介して保護管と接続する構成であるため、接続作業にコネクターを介在させる必要がある分だけ、構成が複雑になり、配管作業に手間がかかることである。
従来例は広く利用されているものの、簡単な構成によって配管の作業を容易にし、作業性の向上を図る観点から改善の余地があった。
この発明の目的は、構成な簡単によって配管作業を容易にすることにある。 The improvements of the conventional example are as follows.
Since the terminal pipe is configured to be connected to the protective pipe via the connector, the configuration is complicated and the piping work is troublesome as much as it is necessary to interpose the connector in the connection work.
Although the conventional examples are widely used, there is room for improvement from the viewpoint of facilitating piping work with a simple configuration and improving workability.
An object of the present invention is to facilitate piping work by a simple configuration.

この発明の第１の特徴は、管本体と、この管本体の一端に一体成形してありかつヘッダーの接続口となっている継手を覆うカバー部と、上記管本体の他端に一体成形してありかつ保護管と接続可能な接続部とを備えていることにある。上記管本体はその内部を上記ヘッダーに接続される管体の端末が貫通可能であり、上記接続部は、開口部の縁部にこの開口部の内外各側へ折り曲げ可能な係止片を一体的に形成してあり、かつ上記開口部を通じて外周に溝を設けている上記保護管が挿入可能であり、上記係止片は上記溝に係合可能である。
この発明の第２の特徴は、上記第１の特徴を備えており、係止片が開口部の縁部全周に形成されていることにある。
この発明の第３の特徴は、上記第１または第２の特徴を備えており、接続部の開口部側が外側に拡開した形状に形成され、開口部の縁部が係止片と共に、上記係止片が外側に折れ曲がった状態では断面山形状を形成していることにある。
この発明の第４の特徴は、上記第１乃至第３のいずれかの特徴を備えており、カバー部の外周面に配管識別表示プレートを取り付けるための支持部を形成してあることにある。
この発明の第５の特徴は、上記第４の特徴を備えており、支持部に配管識別表示プレートを係止するための係止部を設けていることにある。
この発明の第６の特徴は、上記第４の特徴を備えており、支持部に水平断面がＣ形の配管識別表示プレートを嵌め込まれており、上記支持部の外周面には円周方向に係止溝を形成してあり、上記配管識別表示プレートの内面に上記係止溝に係合可能である係合リブを形成していることにある。 According to a first aspect of the present invention, a tube body, a cover portion that covers a joint that is integrally formed at one end of the tube body and serves as a connection port of the header, and is integrally formed at the other end of the tube body. And a connecting portion connectable to the protective tube. The tube main body can be penetrated by the end of the tube connected to the header, and the connecting portion is integrally formed with a locking piece that can be bent to the inside and outside of the opening at the edge of the opening. The protective tube having a groove formed on the outer periphery through the opening can be inserted, and the locking piece can be engaged with the groove.
The second feature of the present invention is that the first feature is provided, and the locking piece is formed on the entire periphery of the edge of the opening.
A third feature of the present invention includes the first or second feature described above, wherein the opening side of the connection portion is formed in a shape expanding outward, and the edge portion of the opening portion together with the locking piece, In the state in which the locking piece is bent outward, a cross-sectional mountain shape is formed.
A fourth feature of the present invention is that any one of the first to third features is provided, and a support portion for attaching the pipe identification display plate is formed on the outer peripheral surface of the cover portion.
The fifth feature of the present invention is that it has the fourth feature described above, and is provided with a locking portion for locking the pipe identification display plate to the support portion.
A sixth feature of the present invention is the above fourth feature, wherein a pipe identification display plate having a C-shaped horizontal cross section is fitted into the support portion, and the outer peripheral surface of the support portion is arranged in the circumferential direction. An engagement groove is formed, and an engagement rib that can be engaged with the engagement groove is formed on the inner surface of the pipe identification display plate.

この発明によれば、端末管の一端に接続部を形成し、この接続部に係止片を一体成形してあるので、保護管との接続が容易であり、また簡単な構成によって接続が確実かつ簡易に行える。   According to the present invention, the connection portion is formed at one end of the terminal tube, and the locking piece is integrally formed with the connection portion. Therefore, the connection with the protective tube is easy, and the connection is ensured by the simple configuration. And it can be done easily.

この発明を実施するための形態について図面を参照して説明する。
図１〜図３において、端末管１は管本体２と、この管本体の両端にそれぞれ管本体と一体成形してあるカバー部３及び接続部４とを備えている。 An embodiment for carrying out the present invention will be described with reference to the drawings.
1 to 3, the terminal pipe 1 includes a pipe main body 2, and a cover part 3 and a connection part 4 that are integrally formed with the pipe main body at both ends of the pipe main body.

端末管１はその管本体２の外周面が溝２１によって蛇腹状に形成されているプラスチック管であって、管本体の軸心方向に伸縮可能である。端末管１における溝２１は、図２に示すようにＶ字形であって、Ｖ字を構成している一辺２１ａが他辺２１ｂより長い。このために、端末管１は図１１に右側に図示している端末管のように収縮状態では、この形態を維持可能であって、ばね力で自動的に伸張して復元することはなく、そして図１に示すように伸長している場合でも伸長状態が維持可能である。   The terminal tube 1 is a plastic tube whose outer peripheral surface of the tube main body 2 is formed in a bellows shape by a groove 21 and can be expanded and contracted in the axial direction of the tube main body. The groove 21 in the terminal tube 1 is V-shaped as shown in FIG. 2, and one side 21a constituting the V-shape is longer than the other side 21b. For this reason, the terminal tube 1 can maintain this form in the contracted state like the terminal tube shown on the right side in FIG. 11 and does not automatically expand and restore by a spring force. And as shown in FIG. 1, even when extended | stretched, an expansion | extension state is maintainable.

カバー部３は、図１及び図４に示すように、端末管１の一端部（上端部）にほぼ筒状に形成されている。カバー部３はヘッダー５の接続口となっている継手６を覆うことができる。カバー部３の下半部は、その外周面に配管識別表示プレート７を取り付けるための支持部３１を形成してある。支持部３１には配管識別表示プレート７を係止するための係止部である係止溝３１ａを形成してある。
図３〜図５及び図９〜図１１において、配管識別表示プレート７は、水平断面がＣ形に成形された弾性変形可能である筒体によって構成されている。配管識別表示プレート７の正面は、端末管１内を貫通する管体である流水管９Ａ，９Ｂ（図１１）が通じている機器名（例えば給湯器、浴室のシャワー、台所流しなど）の表示部７１となっており、背面に開口部７２を設けてある。
表示部７１には識別表示文字７１ａ、図３では「給湯器」が、図１１では「給湯器」と「シャワー」が表示されており、端末管１が「給湯器」及び「シャワー」に通じている流水管９Ａ，９Ｂに対応していることを示している。配管識別表示プレート７は開口部７２の存在によって外側に弾性変形させてこの開口部を広げることができる。配管識別表示プレート７はその内周面に円周方向に係合部である係合リブ７３を形成してある。係合リブ７３は支持部３１の係止溝３１ａに係合可能である。
配管識別表示プレート７をカバー部３の支持部３１に取り付けるには、配管識別表示プレートを外側に引っ張って開口部７２を広げて、この開口部を支持部３１の正面側の外周面に向けて押し付けながら支持部に嵌め込む。
なお、流水管を総称する場合に符号を「９」を使用する（図１１）。 As shown in FIGS. 1 and 4, the cover 3 is formed in a substantially cylindrical shape at one end (upper end) of the terminal tube 1. The cover part 3 can cover the joint 6 that is a connection port of the header 5. The lower half part of the cover part 3 forms a support part 31 for attaching the pipe identification display plate 7 to the outer peripheral surface thereof. The support portion 31 is formed with a locking groove 31 a that is a locking portion for locking the pipe identification display plate 7.
3 to 5 and 9 to 11, the pipe identification display plate 7 is configured by an elastically deformable cylinder whose horizontal section is formed in a C shape. On the front side of the pipe identification display plate 7 is an indication of the equipment name (for example, a water heater, a bathroom shower, a kitchen sink, etc.) through which the flowing water pipes 9A and 9B (FIG. 11) are pipes penetrating the terminal pipe 1. The opening 71 is provided on the back surface.
The display unit 71 displays the identification display character 71a, “Hot water heater” in FIG. 3, “Hot water heater” and “Shower” in FIG. 11, and the terminal pipe 1 leads to “Hot water heater” and “Shower”. It corresponds to the flowing water pipes 9A and 9B. The pipe identification display plate 7 can be elastically deformed outward by the presence of the opening 72 to widen the opening. The pipe identification display plate 7 has an engagement rib 73 as an engagement portion formed in the circumferential direction on the inner peripheral surface thereof. The engaging rib 73 can be engaged with the locking groove 31 a of the support portion 31.
In order to attach the pipe identification display plate 7 to the support part 31 of the cover part 3, the pipe identification display plate is pulled outward to widen the opening 72, and this opening is directed to the outer peripheral surface on the front side of the support part 31. Fit it into the support while pressing.
In addition, the symbol “9” is used when generically referring to running water pipes (FIG. 11).

接続部４は管本体２の他端（下端）に形成されている。接続部４は図１、図２及び図７に示すように筒状に形成されている。接続部４は、図２に示すように開口部４１側が外側に拡開した形状に形成されており、開口部の縁部に係止片４２を一体的に形成してある。係止片４２は開口部４１の縁部全周に形成されている。係止片４２は、また使用前では図１及び図２に示すように外側に突出（露出）された状態にあり、使用時には図３、図６及び図８に示すように示すように開口部４１内側に折り曲げられるものである。このように係止片４２は開口部４１の内側又は外側に向けて折り曲げ可能なものである。
開口部４１の側縁部は、図６に示すように係止片４２が内側へ折り曲げられたときには、その断面形状が「レ」形を形成し、また図２に示すように係止片が外側へ折り曲げられたときには、その断面形状が山形を形成している。
接続部４内には、図６及び図８に示すように開口部４１を通じて保護管８が挿入可能である。保護管８は内部を貫通する流水管９の端末を保護するものであり、その外周に溝８１を設けている。流水管９はヘッダー５の継手６に接続される（図１１）。
係止片４２は保護管８の溝８１に係合可能である。
接続部４の外周面には全周に複数の補強用の凹溝４３を形成してある（図１）。 The connecting portion 4 is formed at the other end (lower end) of the pipe body 2. The connection part 4 is formed in a cylindrical shape as shown in FIGS. As shown in FIG. 2, the connecting portion 4 is formed in a shape in which the opening 41 side is expanded outward, and a locking piece 42 is integrally formed at the edge of the opening. The locking piece 42 is formed around the entire edge of the opening 41. The locking piece 42 is in a state of protruding (exposed) outward as shown in FIGS. 1 and 2 before use, and when used, the opening is open as shown in FIGS. 41 is bent inside. Thus, the locking piece 42 can be bent toward the inside or the outside of the opening 41.
When the locking piece 42 is bent inward as shown in FIG. 6, the cross-sectional shape of the side edge of the opening 41 forms a “le” shape, and as shown in FIG. When bent outward, the cross-sectional shape forms a mountain shape.
The protective tube 8 can be inserted into the connecting portion 4 through the opening 41 as shown in FIGS. The protective pipe 8 protects the end of the water pipe 9 penetrating the inside, and a groove 81 is provided on the outer periphery thereof. The flowing water pipe 9 is connected to the joint 6 of the header 5 (FIG. 11).
The locking piece 42 can be engaged with the groove 81 of the protective tube 8.
A plurality of reinforcing concave grooves 43 are formed on the entire outer peripheral surface of the connecting portion 4 (FIG. 1).

端末管１と、継手６及び保護管８との相互関係について説明する。
端末管１と継手６との関係について説明する。
端末管１は給水用又は給湯用のヘッダー５に接続され、内部に配管されている流水管９の端末部分をシールしている。端末管１のカバー部３はヘッダー５の継手６を下側からこれを包み込むように覆っており、継手から漏れる水を受け入れる形態となっている（図１及び図１１）。
端末管１と保護管８との関係について説明する。
図３〜図６に示すように、保護管８の端末が端末管１の接続部４内へ開口部４１から差し込まれる。保護管８の端末が接続部４に差し込まれている状態では、接続部の係止片４２は保護管８の溝８１に係合されている。この係合を通じて端末管１は保護管８との結合が確実なものとなる。
端末管１と保護管８との結合を解除するためには、保護管を図３下方に向けて強く引っ張ると、係止片４２が係合されている溝８１が下方へ移動し、この移動の過程で係止片はその上端側が下方に引っ張られ、やがて弾性変形して下方に折り曲げられ、溝に対する係止機能が弱められるから、保護管をさらに下方に向けて引っ張ることによって保護管が端末管から引き出される。
反対に、端末管１に保護管８を接続させるためには、保護管の端末を接続部４の開口部４１に押し込むと、係止片４２は図２上方に押圧されるために、その上端側が弾性変形して内方に折れ曲げられ、保護管の端末が接続部内に挿入され、やがて係止片４２が溝８１に係合される。係止片４２が内側にかつ上向きに折れ曲がった状態で保護管８の溝８１と係合するために、保護管が接続部４から図６下方へ離脱しにくくなり、端末管１と保護管との結合が確実なものとなる。図４及び図１１に示すように、ヘッダー５の下部には軸心方向に所定間隔をあけて複数の継手６が取り付けられており、そして両端にも図示していないが継手が取り付けられている
。各継手６には、給湯器、浴室のシャワー、台所流しなどに水又は湯を供給するための流水管９（９Ａ，９Ｂ）の端末が接続されている。 The mutual relationship between the terminal pipe 1 and the joint 6 and the protective pipe 8 will be described.
The relationship between the terminal pipe 1 and the joint 6 will be described.
The terminal pipe 1 is connected to a header 5 for water supply or hot water supply, and seals the terminal portion of the flowing water pipe 9 piped inside. The cover portion 3 of the terminal pipe 1 covers the joint 6 of the header 5 so as to wrap it from below, and is configured to receive water leaking from the joint (FIGS. 1 and 11).
The relationship between the terminal tube 1 and the protective tube 8 will be described.
As shown in FIGS. 3 to 6, the terminal of the protective tube 8 is inserted into the connecting portion 4 of the terminal tube 1 from the opening 41. In a state where the end of the protection tube 8 is inserted into the connection portion 4, the locking piece 42 of the connection portion is engaged with the groove 81 of the protection tube 8. Through this engagement, the terminal tube 1 is securely connected to the protective tube 8.
In order to release the connection between the terminal tube 1 and the protective tube 8, when the protective tube is pulled strongly downward in FIG. 3, the groove 81 with which the locking piece 42 is engaged moves downward. In this process, the upper end side of the locking piece is pulled downward, and is eventually elastically deformed and bent downward, so that the locking function for the groove is weakened. By pulling the protective tube further downward, the protective tube is Pulled out of the tube.
On the contrary, in order to connect the protective tube 8 to the terminal tube 1, when the terminal of the protective tube is pushed into the opening 41 of the connecting portion 4, the locking piece 42 is pressed upward in FIG. The side is elastically deformed and bent inward, the end of the protective tube is inserted into the connection portion, and the locking piece 42 is eventually engaged with the groove 81. Since the locking piece 42 is bent inward and upward, it engages with the groove 81 of the protective tube 8, so that the protective tube is difficult to be detached from the connecting portion 4 downward in FIG. 6, and the terminal tube 1 and the protective tube This is a secure connection. As shown in FIGS. 4 and 11, a plurality of joints 6 are attached to the lower part of the header 5 at predetermined intervals in the axial direction, and joints are attached to both ends although not shown. . Each joint 6 is connected to a terminal of a water pipe 9 (9A, 9B) for supplying water or hot water to a water heater, a bathroom shower, a kitchen sink or the like.

端末管１の配管作用について説明する。
予め、図２鎖線に示すように端末管１における係止片４２を開口部４１の内側に折り曲げておいても良いが、同図実線に示すように外側へ露出させておく。
まず、保護管８を端末管１の接続部４に接続させるには、保護管の端末部（上端部）を開口部４１に押し込むと、係止片４２が図２鎖線に示すように上方に押圧されるために、全体が弾性変形され上方に折れ曲げられ、保護管の端末の先端部側が開口部内に挿入され、そして保護管の押し込みが停止された段階で、図３に示すように、係止片４２が内側に折れ曲がった状態で保護管８の溝８１と係合される。この係合によって、保護管８が端末管１と接続部４を介して接続される。
ついで、図１１に示すように、流水管９Ａの上端部を保護管８の下端側から通してこの上端部を上昇させて保護管及び端末管１を順次貫通させ、端末管のカバー部３より突出した段階でさらに流水管の上端部を上方に引っ張って継手６まで達した時点で流水管の端末を継手６に接続させる。
その後、端末管１のカバー部３を図１１の矢印方向に引っ張って上昇させると、端末管は伸張することになり、カバー部が継手６を完全に覆う位置に達した段階で伸張操作を停止する。停止した段階でも、端末管の伸張状態が維持され、図７に示すように端末管によるヘッダー配管の作業を終える。
この結果、保護管８とヘッダー５との間の隙間に位置している流水管９Ａの端末部分は端末管１によってシールされ、継手６から漏れる水はカバー部３内に導かれ、端末管から保護管８へ案内される。
図１１左側に位置している端末管１についても、上記配管操作と同様にして配管されているものであり、浴室のシャワーに通じている流水管９Ｂの端末部分は端末管１及び保護管８によってシールされている。
流水管の端末をヘッダー５の継手６に接続する際、端末管１は図１１に示すように常に人手を介することなく収縮状態が維持されているから、流水管９（９Ａ，９Ｂ）の端末を上方に引っ張る際に、作業者が両手を自由に使えるから作業がしやすい。また端末管１自体を上下動させる必要がないから、配管の作業スペースが狭くても配管作業に手間がかからない。 The piping action of the terminal pipe 1 will be described.
The locking piece 42 in the terminal tube 1 may be bent in advance to the inside of the opening 41 as shown by a chain line in FIG. 2, but is exposed to the outside as shown by the solid line in FIG.
First, in order to connect the protective tube 8 to the connection portion 4 of the terminal tube 1, when the terminal portion (upper end portion) of the protective tube is pushed into the opening 41, the locking piece 42 moves upward as shown by a chain line in FIG. In order to be pressed, the whole is elastically deformed and bent upward, the distal end side of the end of the protective tube is inserted into the opening, and the pushing of the protective tube is stopped, as shown in FIG. The locking piece 42 is engaged with the groove 81 of the protective tube 8 in a state of being bent inward. By this engagement, the protective tube 8 is connected to the terminal tube 1 via the connection portion 4.
Next, as shown in FIG. 11, the upper end of the flowing water pipe 9 </ b> A is passed from the lower end side of the protective pipe 8, and the upper end is raised to sequentially penetrate the protective pipe and the terminal pipe 1. At the stage of protrusion, the upper end of the water pipe is further pulled upward to reach the joint 6, and the terminal of the water pipe is connected to the joint 6.
Thereafter, when the cover part 3 of the terminal pipe 1 is pulled upward in the direction of the arrow in FIG. 11, the terminal pipe is extended, and the extension operation is stopped when the cover part reaches a position completely covering the joint 6. To do. Even at the stage of stopping, the extension state of the terminal pipe is maintained, and the work of header piping by the terminal pipe is completed as shown in FIG.
As a result, the end portion of the flowing water pipe 9A located in the gap between the protective pipe 8 and the header 5 is sealed by the terminal pipe 1, and the water leaking from the joint 6 is guided into the cover portion 3 and from the terminal pipe. Guided to the protective tube 8.
The terminal pipe 1 located on the left side of FIG. 11 is also piped in the same manner as the above pipe operation, and the terminal portion of the flowing water pipe 9B leading to the shower in the bathroom is the terminal pipe 1 and the protective pipe 8. Is sealed by.
When connecting the terminal of the flowing water pipe to the joint 6 of the header 5, the terminal pipe 1 is always kept in a contracted state without manual intervention as shown in FIG. 11, so the terminal of the flowing water pipe 9 (9 </ b> A, 9 </ b> B). Since the operator can use both hands freely when pulling upward, it is easy to work. In addition, since it is not necessary to move the terminal pipe 1 up and down, even if the work space for the piping is small, the piping work does not take time.

図１に示す端末管１は、カバー部３及び接続部４が一体的に成形され、接続部には係止片４２が内外に折り曲げ可能に一体に形成されているので、保護管８との接続のためのコネクターなど特別に接続部材が不要となるから、その分だけ構成が簡単となり、製造のコストダウンを図ることができる。
図１に示す端末管１によれば、接続部４の開口部４１に係止片４２を設けているので、保護管８を開口部内への差し込み及び端末管との接続がワンタッチ挿入のみで済むので、簡易にかつ迅速な接続操作ができ、配管作業の効率化の向上を図ることができる。
図１に示す端末管１によれば、係止片４２を開口部４１の縁部全周に設けているので、係止片と保護管８の溝８１との係合が強化される。
図１に示す端末管１によれば、端末管１の開口部４１側が外側に拡開した形状（拡開状）に形成されているので、保護管８の上端部の挿入が円滑に行え、しかも開口部の縁部全周に形成されている係止片４２が内側へ折り曲げられた状態では縁部と共に断面「レ」字状に屈曲されるので、強固な係合が可能となる。
図１に示す端末管１によれば、カバー部３に配管識別表示プレート７を取り付けるための支持部３１を設けているので、配管識別表示プレートを簡単にカバー部に取り付けることができる。 The terminal tube 1 shown in FIG. 1 has a cover portion 3 and a connection portion 4 formed integrally, and a locking piece 42 is integrally formed in the connection portion so that it can be bent inward and outward. Since no special connection member such as a connector for connection is required, the configuration is simplified correspondingly, and the manufacturing cost can be reduced.
According to the terminal pipe 1 shown in FIG. 1, since the locking piece 42 is provided in the opening 41 of the connecting portion 4, the protective tube 8 can be inserted into the opening and connected to the terminal tube only by one-touch insertion. Therefore, a simple and quick connection operation can be performed, and the efficiency of piping work can be improved.
According to the terminal tube 1 shown in FIG. 1, since the locking piece 42 is provided on the entire periphery of the edge of the opening 41, the engagement between the locking piece and the groove 81 of the protective tube 8 is strengthened.
According to the terminal tube 1 shown in FIG. 1, since the opening 41 side of the terminal tube 1 is formed in a shape (expanded shape) expanded outward, the upper end of the protective tube 8 can be smoothly inserted, In addition, when the locking piece 42 formed on the entire periphery of the edge of the opening is bent inward, the engagement piece 42 is bent together with the edge in a cross-section “L” shape, so that strong engagement is possible.
According to the terminal pipe 1 shown in FIG. 1, since the support part 31 for attaching the pipe identification display plate 7 to the cover part 3 is provided, the pipe identification display plate can be easily attached to the cover part.

支持部３１はカバー部３に必ずしも設けることを要さず、端末管１の管本体２に設けても良い。
係止片４２は接続部４の開口部４１の全周に設けることが結合強化の観点から望ましいが、円周方向に間隔を置いて配置しても良い。 The support part 31 is not necessarily provided in the cover part 3 and may be provided in the pipe body 2 of the terminal pipe 1.
Although it is desirable to provide the locking pieces 42 on the entire circumference of the opening 41 of the connecting portion 4 from the viewpoint of strengthening the connection, they may be arranged at intervals in the circumferential direction.

この発明に係る端末管を示す正面図である。It is a front view which shows the terminal pipe which concerns on this invention. この発明に係る端末管を示す拡大縦断面図であって、中間部分を省略している図である。FIG. 3 is an enlarged longitudinal sectional view showing a terminal pipe according to the present invention, and is a view in which an intermediate portion is omitted. この発明に係る端末管を示す正面図であって、上端側に配管識別表示プレートを取り付け、下端側に保護管を接続している状態を示す図である。It is a front view which shows the terminal pipe which concerns on this invention, Comprising: It is a figure which shows the state which attached the pipe identification display plate to the upper end side, and connected the protective pipe to the lower end side. この発明に係る端末管のカバー部を示す一部切欠拡大断面図である。It is a partially cutaway expanded sectional view which shows the cover part of the terminal pipe which concerns on this invention. 図４のＶ−Ｖ線拡大断面図である。It is the VV line expanded sectional view of FIG. この発明に係る端末管の接続部を示す一部切欠拡大断面図である。It is a partially cutaway expanded sectional view which shows the connection part of the terminal pipe which concerns on this invention. 図２のＶＩＩ−ＶＩＩ線断面図である。It is the VII-VII sectional view taken on the line of FIG. 図６のＶＩＩＩ−ＶＩＩＩ線断面図である。It is the VIII-VIII sectional view taken on the line of FIG. この発明に係る端末管に取り付ける配管識別表示プレートを示す拡大平面図である。It is an enlarged plan view which shows the piping identification display plate attached to the terminal pipe which concerns on this invention. 図９のＸ−Ｘ線断面図である。FIG. 10 is a sectional view taken along line XX in FIG. 9. この発明に係る端末管の配管過程を縮小して示す一部切欠正面図である。It is a partially notched front view which reduces and shows the piping process of the terminal pipe which concerns on this invention.

符号の説明Explanation of symbols

１ 端末管
２ 管本体
３ カバー部
３１ 支持部
３１ａ 係止溝（係止部）
４ 接続部
４１ 開口部
４２ 係止片
５ ヘッダー
６ 継手
７ 配管識別表示プレート
７１ 表示部
７３ 係合リブ
８ 保護管
８１ 溝
９，９Ａ，９Ｂ 流水管（管体） DESCRIPTION OF SYMBOLS 1 Terminal pipe 2 Pipe body 3 Cover part 31 Support part 31a Locking groove (locking part)
4 Connection Portion 41 Opening 42 Locking Piece 5 Header 6 Joint 7 Pipe Identification Display Plate 71 Display Portion 73 Engaging Rib 8 Protective Tube 81 Groove 9, 9A, 9B Flowing Water Pipe (Tube)

Claims (6)

管本体と、この管本体の一端に一体成形してありかつヘッダーの接続口となっている継手を覆うカバー部と、上記管本体の他端に一体成形してありかつ保護管と接続可能な接続部とを備えており、
上記管本体はその内部を上記ヘッダーに接続される管体の端末が貫通可能であり、
上記接続部は、開口部の縁部にこの開口部の内外各側へ折り曲げ可能な係止片を一体的に形成してあり、かつ上記開口部を通じて外周に溝を設けている上記保護管が挿入可能であり、上記係止片は上記溝に係合可能である
ことを特徴とするヘッダー配管における端末管。 A tube body, a cover portion that covers the joint that is integrally formed at one end of the tube body and serves as a connection port of the header, and is integrally formed at the other end of the tube body and can be connected to a protective tube With a connection part,
The tube body allows the end of the tube connected to the header to penetrate the inside of the tube body,
The connecting portion is formed integrally with a locking piece that can be bent to the inner and outer sides of the opening at the edge of the opening, and the protective tube having a groove on the outer periphery through the opening. A terminal pipe in a header pipe, wherein the terminal pipe is insertable, and the locking piece is engageable with the groove. 係止片は、開口部の縁部全周に形成されていることを特徴とする請求項１記載のヘッダー配管における端末管。   The terminal pipe in a header pipe according to claim 1, wherein the locking piece is formed on the entire periphery of the edge of the opening. 接続部の開口部側は外側に拡開した形状に形成され、開口部の縁部が係止片と共に、上記係止片が外側に折れ曲がった状態では断面山形状を形成していることを特徴とする請求項１または請求項２記載のヘッダー配管における端末管。   The opening side of the connecting part is formed in a shape that expands outward, and the edge part of the opening part forms a cross-sectional mountain shape in a state where the locking piece is bent outward together with the locking piece. The terminal pipe in the header pipe according to claim 1 or 2. カバー部の外周面に配管識別表示プレートを取り付けるための支持部を形成してあることを特徴とする請求項１乃至請求項３のいずれかに記載のヘッダー配管における端末管。   The terminal pipe in the header pipe according to any one of claims 1 to 3, wherein a support part for attaching the pipe identification display plate is formed on the outer peripheral surface of the cover part. 支持部に配管識別表示プレートを係止するための係止部を設けていることを特徴とする請求項４記載のヘッダー配管における端末管。   5. A terminal pipe in a header pipe according to claim 4, wherein a locking part for locking the pipe identification display plate is provided in the support part. 支持部に水平断面がＣ形の配管識別表示プレートを嵌め込まれており、上記支持部の外周面には円周方向に係止溝を形成してあり、上記配管識別表示プレートの内面に上記係止溝に係合可能である係合リブを形成してあることを特徴とする請求項４記載のヘッダー配管における端末管。   A pipe identification display plate having a C-shaped horizontal cross section is fitted in the support portion, a locking groove is formed in the circumferential direction on the outer peripheral surface of the support portion, and the engagement is formed on the inner surface of the pipe identification display plate. 5. The terminal pipe in the header pipe according to claim 4, wherein an engagement rib that can be engaged with the stop groove is formed.
JP2006281572A 2006-10-16 2006-10-16 Terminal pipe for header pipe Pending JP2008095925A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0244156Y2 (en) * 1985-06-11 1990-11-22
JPH0632553Y2 (en) * 1990-09-17 1994-08-24 未来工業株式会社 Fluid pipe terminal connector
JPH07198088A (en) * 1993-11-24 1995-08-01 Hitachi Metals Ltd Connecting cylinder for pipe end part
JP2004150145A (en) * 2002-10-31 2004-05-27 Toto Ltd Piping work execution method
JP2005121159A (en) * 2003-10-17 2005-05-12 Maruichi Fujii:Kk Terminal pipe in header pipe
JP2006029402A (en) * 2004-07-14 2006-02-02 Maruichi Fujii:Kk Connecting end structure of protective pipe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0244156Y2 (en) * 1985-06-11 1990-11-22
JPH0632553Y2 (en) * 1990-09-17 1994-08-24 未来工業株式会社 Fluid pipe terminal connector
JPH07198088A (en) * 1993-11-24 1995-08-01 Hitachi Metals Ltd Connecting cylinder for pipe end part
JP2004150145A (en) * 2002-10-31 2004-05-27 Toto Ltd Piping work execution method
JP2005121159A (en) * 2003-10-17 2005-05-12 Maruichi Fujii:Kk Terminal pipe in header pipe
JP2006029402A (en) * 2004-07-14 2006-02-02 Maruichi Fujii:Kk Connecting end structure of protective pipe

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