JP2019074186A - Joint holding member and joint holding structure - Google Patents

Joint holding member and joint holding structure Download PDF

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JP2019074186A
JP2019074186A JP2017202471A JP2017202471A JP2019074186A JP 2019074186 A JP2019074186 A JP 2019074186A JP 2017202471 A JP2017202471 A JP 2017202471A JP 2017202471 A JP2017202471 A JP 2017202471A JP 2019074186 A JP2019074186 A JP 2019074186A
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joint
holding member
joint holding
core
cylindrical portion
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JP6971121B2 (en
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豊 金平
Yutaka Kanehira
豊 金平
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Sekisui Chemical Co Ltd
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Sekisui Chemical Co Ltd
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Abstract

To provide a joint holding member that inhibits an inner cylindrical body from entering the inside of a joint body and secures a large fluid channel cross-sectional area of the joint body.SOLUTION: A joint holding member 21 is used for holding: a cylindrical joint body 12 in a joint 11 connected to a pipe P; and an inner cylindrical body 13 disposed inside the joint body 12. The joint holding member includes: a cylindrical part 22 mutually fitted between the joint body 12 and the inner cylindrical body 13; and a flange part 23 protruding toward outside in a radial direction from the cylindrical part 22.SELECTED DRAWING: Figure 1

Description

本発明は、継手保持部材及び継手保持構造に関する。   The present invention relates to a joint holding member and a joint holding structure.

従来、戸建て住宅やマンション等の集合住宅の居室内には、架橋ポリエチレンやポリブテン等で形成されたパイプが用いられている。このパイプを接続する継手の一種として、外面止水構造（方式）の継手が用いられている。
外面止水構造の継手では、継手本体とは別体に構成されたインコア（内筒体）が用いられている。インコアは、継手本体とパイプとの接続部分を継手本体の内面側から補強する。インコアを用いることにより、継手本体とパイプとの密着性を長期的に維持することができる。 Conventionally, a pipe made of cross-linked polyethylene, polybutene or the like is used in a room of an apartment house such as a detached house or an apartment. As a kind of joint which connects this pipe, the joint of the outer surface water stop structure (method) is used.
In the joint of the outer surface water stop structure, an in-core (inner cylinder) configured separately from the joint main body is used. The in-core reinforces the connection portion between the joint body and the pipe from the inner surface side of the joint body. By using the in-core, the adhesion between the joint body and the pipe can be maintained for a long time.

外面止水構造の継手を梱包する際に、継手本体内にインコアを格納している。このように梱包すると、施工現場において、作業者がパイプと外面止水構造の継手とを接続する際に、継手本体内のインコアを手にする。このインコアを継手本体内に取付けて施工作業が行われるため、継手本体内にインコアを取付け忘れることが抑えられる。   When packing the joint of the outer surface water stop structure, the in-core is stored in the joint body. When packaged in this manner, at the construction site, when the operator connects the pipe and the joint of the outer surface water blocking structure, the in-core in the joint body is obtained. Since the in-core is attached to the inside of the joint body and construction work is performed, it is possible to suppress the forgetting of attaching the in-core into the joint body.

例えば、特許文献１の継手では、インコアがパイプに接続されていない未使用のときは、インコアは、継手本体のパイプ接続口内に収容されている。インコアが継手本体の奥に入り込まないように、インコアの端部は継手本体内の当接面に当接している。当接面は、継手本体の内周面から径方向内側に向かって突出している。   For example, in the joint of Patent Document 1, when the in-core is not used and not connected to the pipe, the in-core is accommodated in the pipe connection port of the joint body. The end of the in-core abuts against an abutment surface in the joint body so that the in-core does not get deep into the joint body. The contact surface protrudes radially inward from the inner circumferential surface of the joint body.

特開２０００−１７０９７５号公報JP 2000-170975 A

しかしながら、特許文献１の継手では、継手本体内に当接面が設けられているため、継手本体内を水道水等の流体が流れる流路断面積は、継手本体に当接面が設けられていない場合に比べて小さくなる。継手本体の流路断面積が小さくなると、継手本体内を流体が流れにくくなる。   However, in the joint of Patent Document 1, since the contact surface is provided in the joint body, the flow passage cross-sectional area through which fluid such as tap water flows in the joint body is provided with the contact surface in the joint body It becomes smaller than the case without it. When the flow passage cross-sectional area of the joint body is reduced, the fluid is less likely to flow in the joint body.

本発明は、このような問題点に鑑みてなされたものであって、継手本体内に内筒体が入り込むのを抑制し、かつ、継手本体の流路断面積を大きく確保することができる継手保持部材、及びこの継手保持部材を備える継手保持構造を提供することを目的とする。   This invention is made in view of such a problem, Comprising: It is suppressed that an inner cylindrical body entraps in a joint main body, and a joint which can secure large channel cross-sectional area of a joint main body An object of the present invention is to provide a holding member and a joint holding structure provided with the joint holding member.

上記課題を解決するために、この発明は以下の手段を提案している。
本発明の継手保持部材は、パイプと接続される継手における筒状の継手本体と、前記継手本体内に配置される内筒体と、を保持するのに用いられる継手保持部材であって、前記継手本体と前記内筒体との間に嵌め合う筒状部と、前記筒状部から径方向外側に向かって突出する鍔部と、を備えることを特徴としている。 In order to solve the above-mentioned subject, this invention proposes the following means.
The joint holding member according to the present invention is a joint holding member used to hold a cylindrical joint main body in a joint to be connected to a pipe and an inner cylindrical body disposed in the joint main body, A tubular portion fitted between the joint main body and the inner tubular body, and a flange portion protruding outward in the radial direction from the tubular portion are characterized.

この発明によれば、例えば、継手保持部材の筒状部内に内筒体を挿入し、さらに継手本体内に継手保持部材の筒状部を挿入する。このように、継手本体内に継手保持部材を介して内筒体を保持する。鍔部の外径は継手本体の内径よりも大きいため、継手本体内に鍔部が入り込まない。
そして、継手本体内に鍔部が入り込まないため、前記特許文献１のように継手本体内に当接面を設ける必要がなく、継手本体の流路断面積を大きく確保することができる。 According to the present invention, for example, the inner cylindrical body is inserted into the cylindrical portion of the joint holding member, and the cylindrical portion of the joint holding member is further inserted into the joint main body. Thus, the inner cylinder is held in the joint body via the joint holding member. Since the outer diameter of the collar is larger than the inner diameter of the joint body, the collar does not enter the joint body.
And since a collar part does not enter in a fitting main body, it is not necessary to provide a contact side in a fitting main body like the above-mentioned patent documents 1, and it can secure large channel cross-sectional area of a fitting main body.

また、上記の継手保持部材において、前記鍔部の径方向外側の縁部から突出する摘みを備えてもよい。
この発明によれば、作業者が摘みを把持して操作することにより、継手本体及び内筒体から継手保持部材を取外しやすくすることができる。さらに、継手保持部材の位置を作業者が視認しやすくすることができる。 In the above joint holding member, a knob may be provided which protrudes from the radially outer edge of the collar.
According to the present invention, the joint holding member can be easily removed from the joint body and the inner cylindrical body by the operator holding and operating the knob. Furthermore, the position of the joint holding member can be easily recognized by the operator.

また、上記の継手保持部材において、前記摘みに設けられ、前記内筒体内に嵌め合う第１突部を備えてもよい。
この発明によれば、摘みを折り畳んで内筒体内に第１突部を嵌め合わせると、内筒体内に第１突部が配置される。これにより、施工現場等において、内筒体内にゴミ等が入るのを抑制することができる。 In the joint holding member described above, the joint holding member may be provided with a first protrusion which is provided on the knob and which is fitted in the inner cylindrical body.
According to this invention, when the knob is folded and the first projection is fitted into the inner cylinder, the first projection is disposed in the inner cylinder. Thereby, in a construction site etc., it can suppress that refuse etc. enter into an inner cylinder body.

また、上記の継手保持部材において、前記筒状部の外周面及び内周面の少なくとも一方に溝部が形成されていてもよい。
この発明によれば、筒状部の剛性が低くなり筒状部を変形させやすくなる。このため、継手本体及び内筒体に筒状部を嵌め合わせやすくし、継手本体及び内筒体から筒状部を取外しやすくすることができる。 In the above joint holding member, a groove may be formed in at least one of the outer peripheral surface and the inner peripheral surface of the cylindrical portion.
According to the present invention, the rigidity of the cylindrical portion is reduced, and the cylindrical portion is easily deformed. Therefore, the tubular portion can be easily fitted to the joint body and the inner cylindrical body, and the tubular portion can be easily removed from the joint body and the inner cylindrical body.

また、上記の継手保持部材において、前記筒状部の外周面から内周面に達する貫通孔が形成されていてもよい。
この発明によれば、筒状部の剛性がさらに低くなるため、継手本体及び内筒体に筒状部をさらに嵌め合わせやすくし、継手本体及び内筒体から筒状部をさらに取外しやすくすることができる。 In the above joint holding member, a through hole may be formed which extends from the outer peripheral surface of the cylindrical portion to the inner peripheral surface.
According to the present invention, since the rigidity of the cylindrical portion is further reduced, the cylindrical portion can be easily fitted to the joint body and the inner cylindrical body, and the cylindrical portion can be further easily removed from the joint body and the inner cylindrical body. Can.

また、上記の継手保持部材において、前記溝部が複数並べて形成され、前記複数の溝部の間に形成された第２突部に切欠きが形成されていてもよい。
この発明によれば、切欠きにより、第２突部の剛性を低くして第２突部を撓みやすくすることができる。これにより、継手本体及び内筒体に筒状部をさらに嵌め合わせやすくし、継手本体及び内筒体から筒状部をさらに取外しやすくすることができる。 Further, in the above joint holding member, a plurality of the groove portions may be formed side by side, and a notch may be formed in the second protrusion formed between the plurality of groove portions.
According to this invention, the rigidity of the second protrusion can be reduced by the notch to make the second protrusion easy to bend. As a result, the tubular portion can be further easily fitted to the joint body and the inner cylindrical body, and the tubular portion can be further easily removed from the joint body and the inner cylindrical body.

また、本発明の継手保持構造は、上記のいずれかに記載の継手保持部材と、前記継手と、を備えることを特徴としている。
この発明によれば、継手本体内に内筒体が入り込むのを抑制し、かつ、継手本体の流路断面積を大きく確保することができる継手保持部材を用いて、継手保持構造を構成することができる。 The joint holding structure according to the present invention is characterized by including the joint holding member according to any one of the above and the joint.
According to the present invention, the joint holding structure is configured using the joint holding member capable of suppressing the entry of the inner cylindrical body into the joint body and securing a large flow passage cross-sectional area of the joint body. Can.

本発明の継手保持部材及び継手保持構造によれば、継手本体内に内筒体が入り込むのを抑制し、かつ、継手本体の流路断面積を大きく確保することができる。   According to the joint holding member and the joint holding structure of the present invention, entry of the inner cylindrical body into the joint body can be suppressed, and a large flow passage cross-sectional area of the joint body can be secured.

本発明の第１実施形態の継手保持構造の要部を側面視した断面図である。It is sectional drawing which carried out the side view of the principal part of the joint holding structure of 1st Embodiment of this invention. 同継手保持構造における継手保持部材の斜視図である。It is a perspective view of the joint holding member in the joint holding structure. 本発明の実施形態の変形例における継手保持部材の斜視図である。It is a perspective view of the joint holding member in the modification of the embodiment of the present invention. 本発明の実施形態の変形例における継手保持部材の斜視図である。It is a perspective view of the joint holding member in the modification of the embodiment of the present invention. 図４中の切断線Ａ１−Ａ１の断面図である。FIG. 5 is a cross-sectional view of the cutting line A1-A1 in FIG. 4; 本発明の実施形態の変形例における継手保持部材の斜視図である。It is a perspective view of the joint holding member in the modification of the embodiment of the present invention. 本発明の実施形態の変形例における継手保持部材の斜視図である。It is a perspective view of the joint holding member in the modification of the embodiment of the present invention. 図７中の切断線Ａ２−Ａ２の断面図である。It is sectional drawing of cutting-plane-line A2-A2 in FIG. 本発明の実施形態の変形例における継手保持部材の斜視図である。It is a perspective view of the joint holding member in the modification of the embodiment of the present invention. 本発明の実施形態の変形例における継手保持部材の斜視図である。It is a perspective view of the joint holding member in the modification of the embodiment of the present invention. 本発明の第２実施形態における継手保持部材の斜視図である。It is a perspective view of the coupling | joint holding member in 2nd Embodiment of this invention. 同継手保持部材を備える継手保持構造の要部を側面視した断面図である。It is the sectional view which carried out the side view of the principal part of the joint holding structure provided with the joint holding member.

（第１実施形態）
以下、本発明に係る継手保持構造の第１実施形態を、図１から図１０を参照しながら説明する。
図１及び図２に示すように、本実施形態の継手保持構造１は、継手１１と、本実施形態の継手保持部材２１と、を備えている。継手１１は、パイプＰと接続される外面止水構造の継手である。なお、図１では、継手保持構造１を中心に説明するためにパイプＰを二点鎖線で示している。
継手１１は、継手本体１２と、インコア（内筒体）１３と、を有している。継手保持部材２１は、継手本体１２と、インコア１３と、を保持するのに用いられる。継手保持部材２１は、筒状部２２と、鍔部２３と、を有している。 First Embodiment
Hereinafter, a first embodiment of a joint holding structure according to the present invention will be described with reference to FIGS. 1 to 10.
As shown in FIG.1 and FIG.2, the joint holding structure 1 of this embodiment is provided with the joint 11 and the joint holding member 21 of this embodiment. The joint 11 is a joint of an outer surface water stop structure connected to the pipe P. In addition, in FIG. 1, in order to demonstrate centering on the joint holding structure 1, the pipe P is shown with the dashed-two dotted line.
The joint 11 has a joint body 12 and an in-core (inner cylinder) 13. The joint holding member 21 is used to hold the joint body 12 and the in-core 13. The joint holding member 21 has a cylindrical portion 22 and a collar portion 23.

ここで、継手本体１２、インコア１３、及び筒状部２２は円筒状に形成され、鍔部２３は円環状に形成されている。継手本体１２、インコア１３、筒状部２２、及び鍔部２３の中心軸は、共通軸と同軸に配置されている。以下では、共通軸を軸線Ｃと言う。軸線Ｃは、継手本体１２、筒状部２２等の中心軸である。軸線Ｃに沿う方向を、軸線Ｃ方向と言う。軸線Ｃに直交する方向を径方向といい、軸線Ｃ周りに周回する方向を周方向という。   Here, the joint body 12, the in-core 13, and the cylindrical portion 22 are formed in a cylindrical shape, and the collar portion 23 is formed in an annular shape. The central axes of the joint body 12, the in-core 13, the cylindrical portion 22, and the collar portion 23 are arranged coaxially with the common axis. Hereinafter, the common axis is referred to as axis C. The axis C is a central axis of the joint body 12, the cylindrical portion 22 and the like. The direction along the axis C is called the axis C direction. The direction orthogonal to the axis C is referred to as the radial direction, and the direction around the axis C is referred to as the circumferential direction.

インコア１３は、胴部１５と、フランジ１６と、を有している。胴部１５は、円筒状に形成されている。フランジ１６は、胴部１５の軸線Ｃ方向の端部に、径方向外側に向かって突出するように設けられている。
継手１１のインコア１３が継手保持部材２１により保持されているときには、胴部１５の一部が継手本体１２内に配置され、フランジ１６が継手本体１２の外部に配置されている。
一方で、継手１１にパイプＰが接続されていることにより継手１１が使用されているときには、インコア１３は、図１中に二点鎖線Ｌ１で示すように、胴部１５よりもフランジ１６が継手本体１２における軸線Ｃ方向の中央部側に配置される。継手本体１２の内周面と胴部１５の外周面との間にパイプＰを挟み、図示しない固定手段によりインコア１３を継手本体１２に固定することにより、継手本体１２とパイプＰとが接続されている。 The in core 13 has a body 15 and a flange 16. The body 15 is formed in a cylindrical shape. The flange 16 is provided at the end of the body portion 15 in the axial direction C so as to protrude radially outward.
When the in-core 13 of the joint 11 is held by the joint holding member 21, a part of the body portion 15 is disposed in the joint body 12, and the flange 16 is disposed outside the joint body 12.
On the other hand, when the pipe P is connected to the joint 11 and the joint 11 is used, the in-core 13 is a joint in which the flange 16 is jointed more than the body portion 15 as shown by the two-dot chain line L1 in FIG. It is disposed on the central portion side in the direction of the axis C in the main body 12. The joint body 12 and the pipe P are connected by sandwiching the pipe P between the inner peripheral surface of the joint body 12 and the outer peripheral surface of the body portion 15 and fixing the in-core 13 to the joint body 12 by fixing means not shown. ing.

図１及び図２に示すように、筒状部２２は、インコア１３の胴部１５の外径と同等の内径を有する。ここで言うＡ（例えば、筒状部２２の内径）とＢ（例えば、胴部１５の外径）とが同等であるとは、例えば、ＡとＢとが等しいか、ＡとＢとの寸法差が数ｍｍ以内であることを意味する。
筒状部２２は、継手本体１２の内径と同等の外径を有する。筒状部２２には、筒状部２２の外周面から内周面に達する複数の貫通孔２５が形成されている。筒状部２２では、周方向に隣り合う貫通孔２５の間に軸状部材２６が形成されている。 As shown in FIG. 1 and FIG. 2, the cylindrical portion 22 has an inner diameter equal to the outer diameter of the trunk portion 15 of the in-core 13. If A (for example, the inner diameter of the cylindrical portion 22) and B (for example, the outer diameter of the trunk portion 15) mentioned here are equal, for example, A or B is equal or the dimensions of A and B It means that the difference is within a few mm.
The cylindrical portion 22 has an outer diameter equal to the inner diameter of the joint body 12. The cylindrical portion 22 is formed with a plurality of through holes 25 extending from the outer peripheral surface of the cylindrical portion 22 to the inner peripheral surface. In the cylindrical portion 22, a shaft-like member 26 is formed between the through holes 25 adjacent in the circumferential direction.

複数の貫通孔２５は、筒状部２２の軸線Ｃ方向の全長にわたって形成されている。各軸状部材２６は、三角柱状に形成され、軸線Ｃ方向に延びている。各軸状部材２６は、軸状部材２６が有する３つの側面の１つである側面２６ａを軸線Ｃに対向させ、側面２６ａとは反対側の辺２６ｂを径方向外側に向けるように配置されている。この例では、筒状部２２は、４本の軸状部材２６を有している。複数の軸状部材２６は、軸線Ｃ周りに互いに間隔を空けて等角度ごとに形成されている。
複数の軸状部材２６は、軸線Ｃ方向に沿って鍔部２３から離間するに従い、軸線Ｃに近付くように傾いていてもよい。
なお、筒状部２２が有する軸状部材２６の本数は特に限定されず、２本、３本でもよいし、５本以上でもよい。軸状部材２６は三角柱状に形成されるとしたが、軸状部材の形状は特に限定されない。軸状部材は、同心円状、台所の排気ダクトのような傾斜板状、及び、渦巻ポンプの羽根形状等でもよい。 The plurality of through holes 25 are formed over the entire length of the cylindrical portion 22 in the direction of the axis C. Each axial member 26 is formed in a triangular prism shape, and extends in the axial line C direction. Each axial member 26 is disposed so that the side surface 26a which is one of the three side surfaces of the axial member 26 is opposed to the axis C, and the side 26b opposite to the side surface 26a is directed radially outward. There is. In this example, the cylindrical portion 22 has four shaft-like members 26. The plurality of axial members 26 are formed at equal angles around the axis C at intervals.
The plurality of axial members 26 may be inclined so as to approach the axis C as being separated from the collar portion 23 along the direction of the axis C.
In addition, the number in particular of the axial member 26 which the cylindrical part 22 has is not limited, Two or three may be sufficient and five or more may be sufficient. Although the shaft-like member 26 is formed in a triangular prism shape, the shape of the shaft-like member is not particularly limited. The shaft-like member may be concentric, inclined plate-like such as a kitchen exhaust duct, or a vane shape of a centrifugal pump.

鍔部２３は、筒状部２２の軸線Ｃ方向の端部に、径方向外側に向かって突出するように設けられている。鍔部２３の外径は、継手本体１２の内径よりも大きい。鍔部２３の外径と継手本体１２の外径とは、互いに同等である。
継手保持部材２１を構成する軸状部材２６（筒状部２２）及び鍔部２３は、可撓性を有する材料で一体に形成されている。軸状部材２６及び鍔部２３を形成する材料に制限はない。例えば、ポリプロピレン、ポリエチレン、ポリブテン等の樹脂材料、アルミ、銅、鉄等の金属材料、またはこれらの複合材料等が用いられる。 The flange portion 23 is provided at the end of the cylindrical portion 22 in the direction of the axis C so as to protrude radially outward. The outer diameter of the collar portion 23 is larger than the inner diameter of the joint body 12. The outer diameter of the collar portion 23 and the outer diameter of the joint body 12 are equal to each other.
The shaft-like member 26 (cylindrical part 22) and the collar part 23 which comprise the coupling holding member 21 are integrally formed by the material which has flexibility. There is no limitation on the material for forming the shaft-like member 26 and the collar portion 23. For example, resin materials such as polypropylene, polyethylene and polybutene, metal materials such as aluminum, copper, iron and the like, or composite materials of these materials, etc. are used.

次に、以上のように構成された継手保持部材２１を用いて、継手１１の継手本体１２とインコア１３とを同梱して継手保持構造１を構成する手順について説明する。以下では、継手保持部材２１を用いる手順を中心に説明する。
作業者は、継手保持部材２１の筒状部２２内に、鍔部２３側からインコア１３の胴部１５を挿入する。継手保持部材２１の筒状部２２に、インコア１３のフランジ１６を接触させる。さらに、継手本体１２内に継手保持部材２１の筒状部２２を挿入する。継手本体１２の軸線Ｃ方向の端面に、継手保持部材２１の鍔部２３を接触させる。 Next, using the joint holding member 21 configured as described above, the procedure for forming the joint holding structure 1 by bundling the joint body 12 and the in-core 13 of the joint 11 will be described. In the following, the procedure using the joint holding member 21 will be mainly described.
The worker inserts the trunk portion 15 of the in-core 13 into the cylindrical portion 22 of the joint holding member 21 from the flange portion 23 side. The flange 16 of the in-core 13 is brought into contact with the cylindrical portion 22 of the joint holding member 21. Furthermore, the cylindrical portion 22 of the joint holding member 21 is inserted into the joint main body 12. The flange portion 23 of the joint holding member 21 is brought into contact with the end face of the joint body 12 in the direction of the axis C.

筒状部２２の外径と継手本体１２の内径とが互いに同等であり、筒状部２２の内径とインコア１３の胴部１５の外径とが互いに同等であることから、継手本体１２と筒状部２２、筒状部２２とインコア１３の胴部１５との間にそれぞれ作用する摩擦力により、継手本体１２内に継手保持部材２１を介してインコア１３が保持される。継手本体１２、及び継手本体１２内に継手保持部材２１を介して保持したインコア１３により、継手保持構造１が構成される。
筒状部２２の外周面に貫通孔２５が形成されているため、筒状部２２の剛性が低くなり筒状部２２を変形させやすくなる。このため、継手本体１２及びインコア１３に筒状部２２を嵌め合わせやすくなり、継手本体１２及びインコア１３から筒状部２２を取外しやすくなる。
継手保持構造１を、適宜、梱包袋や梱包箱内に収容して継手１１を梱包する。 The outer diameter of the cylindrical portion 22 and the inner diameter of the joint body 12 are equal to each other, and the inner diameter of the cylindrical portion 22 and the outer diameter of the body portion 15 of the in-core 13 are equal to each other. The in-core 13 is held in the joint body 12 via the joint holding member 21 by the frictional force acting between the cylindrical portion 22 and the cylindrical portion 22 and the body portion 15 of the in-core 13. The joint holding structure 1 is constituted by the joint body 12 and the in-core 13 held in the joint body 12 via the joint holding member 21.
Since the through holes 25 are formed on the outer peripheral surface of the cylindrical portion 22, the rigidity of the cylindrical portion 22 is lowered, and the cylindrical portion 22 is easily deformed. Therefore, the tubular portion 22 can be easily fitted to the joint body 12 and the in-core 13, and the tubular portion 22 can be easily removed from the joint body 12 and the in-core 13.
The joint holding structure 1 is appropriately housed in a packing bag or a packing box to pack the joint 11.

以上説明したように、本実施形態の継手保持部材２１によれば、継手保持部材２１の筒状部２２内にインコア１３を挿入し、さらに継手本体１２内に継手保持部材２１の筒状部２２を挿入する。このように、継手本体１２内に継手保持部材２１を介してインコア１３を保持する。鍔部２３の外径は継手本体１２の内径よりも大きいため、継手本体１２内に鍔部２３が入り込まない。
そして、継手本体１２内に鍔部２３が入り込まないため、前記特許文献１のように継手本体内に当接面を設ける必要がなく、継手本体１２の流路断面積を大きく確保することができる。 As described above, according to the joint holding member 21 of the present embodiment, the in-core 13 is inserted into the cylindrical portion 22 of the joint holding member 21, and the cylindrical portion 22 of the joint holding member 21 is further inserted into the joint body 12. Insert Thus, the in-core 13 is held in the joint body 12 via the joint holding member 21. Since the outer diameter of the collar portion 23 is larger than the inner diameter of the joint body 12, the collar portion 23 does not enter the joint body 12.
And since the collar part 23 does not enter in the joint main body 12, it is not necessary to provide an abutment surface in a joint main body like the said patent document 1, and the flow-path cross-sectional area of the joint main body 12 can be ensured large. .

筒状部２２の外周面に複数の貫通孔２５が形成されているため、筒状部２２の剛性がさらに低くなり筒状部２２をさらに変形させやすくなる。このため、継手本体１２及びインコア１３に筒状部２２をさらに嵌め合わせやすくし、継手本体１２及びインコア１３から筒状部２２をさらに取外しやすくすることができる。
また、本実施形態の継手保持構造１によれば、継手本体１２内にインコア１３が入り込むのを抑制し、かつ、継手本体１２の流路断面積を大きく確保することができる継手保持部材２１を用いて、継手保持構造１を構成することができる。 Since the plurality of through holes 25 are formed on the outer peripheral surface of the cylindrical portion 22, the rigidity of the cylindrical portion 22 is further reduced, and the cylindrical portion 22 is further easily deformed. Therefore, the tubular portion 22 can be further easily fitted to the joint body 12 and the in-core 13, and the tubular portion 22 can be further easily removed from the joint body 12 and the in-core 13.
Further, according to the joint holding structure 1 of the present embodiment, the joint holding member 21 capable of suppressing the entry of the in-core 13 into the joint body 12 and securing a large flow passage cross-sectional area of the joint body 12 is provided. The joint holding structure 1 can be configured using.

本実施形態の継手保持部材２１は、以下に説明するようにその構成を様々に変形させることができる。
図３に示す継手保持部材３１のように、継手保持部材２１において、複数の貫通孔２５に代えて、筒状部２２に複数の溝部３２が形成されてもよい。複数の溝部３２は、筒状部２２の内周面に、軸線Ｃ方向に延び、互いに周方向に間隔を空けて形成されている。周方向に隣り合う溝部３２の間に、第２突部３３が形成されている。 The joint holding member 21 of the present embodiment can be variously modified in its configuration as described below.
Like the joint holding member 31 shown in FIG. 3, in the joint holding member 21, a plurality of groove portions 32 may be formed in the cylindrical portion 22 instead of the plurality of through holes 25. The plurality of grooves 32 extend in the direction of the axis C on the inner circumferential surface of the cylindrical portion 22 and are formed at intervals in the circumferential direction. The second protrusion 33 is formed between the groove portions 32 adjacent in the circumferential direction.

この変形例の継手保持部材３１によれば、筒状部２２の内周面に複数の溝部３２が形成されているため、筒状部２２の剛性が低くなり筒状部２２を変形させやすくなる。このため、継手本体１２及びインコア１３に筒状部２２を嵌め合わせやすくし、継手本体１２及びインコア１３から筒状部２２を取外しやすくすることができる。
複数の溝部３２が軸線Ｃ方向に延びているため、筒状部２２とインコア１３とが第２突部３３でしか接触しない。従って、インコア１３に筒状部２２をさらに嵌め合わせやすくし、インコア１３から筒状部２２をさらに取外しやすくすることができる。 According to the joint holding member 31 of this modification, since the plurality of groove portions 32 are formed on the inner peripheral surface of the cylindrical portion 22, the rigidity of the cylindrical portion 22 is lowered and the cylindrical portion 22 is easily deformed. . Therefore, the tubular portion 22 can be easily fitted to the joint body 12 and the in-core 13, and the tubular portion 22 can be easily removed from the joint body 12 and the in-core 13.
Since the plurality of grooves 32 extend in the direction of the axis C, the cylindrical portion 22 and the in-core 13 only contact at the second protrusion 33. Therefore, the tubular portion 22 can be further easily fitted to the in-core 13, and the tubular portion 22 can be further easily removed from the in-core 13.

図４及び図５に示す継手保持部材３６のように、継手保持部材２１において、複数の貫通孔２５に代えて、筒状部２２に複数の溝部３７が形成されてもよい。複数の溝部３７は、筒状部２２の外周面に、周方向に延びるリング状に形成されている。複数の溝部３７は、互いに軸線Ｃ方向に間隔を空けて形成されている。
図６に示す継手保持部材４１のように、継手保持部材２１において、複数の貫通孔２５に代えて、筒状部２２に複数の溝部４２が形成されてもよい。複数の溝部４２は、軸線Ｃを軸とする螺旋状に形成されている。
なお、複数の溝部４２は、スプライン状（滑らかな曲線状）に形成されてもよい。 Like the joint holding member 36 shown in FIGS. 4 and 5, in the joint holding member 21, a plurality of grooves 37 may be formed in the cylindrical portion 22 instead of the plurality of through holes 25. The plurality of grooves 37 are formed on the outer circumferential surface of the cylindrical portion 22 in a ring shape extending in the circumferential direction. The plurality of grooves 37 are formed spaced apart from each other in the direction of the axis C.
As in the joint holding member 41 shown in FIG. 6, in the joint holding member 21, a plurality of groove portions 42 may be formed in the cylindrical portion 22 instead of the plurality of through holes 25. The plurality of grooves 42 are formed in a spiral shape with the axis C as an axis.
The plurality of groove portions 42 may be formed in a spline shape (smooth curve shape).

図７及び図８に示す継手保持部材４６のように、継手保持部材２１において、複数の貫通孔２５に代えて、筒状部２２に複数の溝部４７，４８が形成されてもよい。
複数の溝部４７は、筒状部２２の外周面に、周方向に延びるリング状に形成されている。複数の溝部４７は、互いに軸線Ｃ方向に間隔を空けて形成されている。複数の溝部４８は、筒状部２２の内周面に、周方向に延びるリング状に形成されている。複数の溝部４８は、互いに軸線Ｃ方向に間隔を空けて形成されている。複数の溝部４７，４８は、軸線Ｃ方向に互い違いに配置されている。複数の溝部４７，４８が形成された筒状部２２は、波状である。
前述の螺旋状又はスプライン状の複数の溝部、及び波状の筒状部２２の形状を組合わせて複合させた形状になるように、溝部及び筒状部の形状を決めてもよい。 As in the joint holding member 46 shown in FIGS. 7 and 8, in the joint holding member 21, a plurality of groove portions 47 and 48 may be formed in the cylindrical portion 22 instead of the plurality of through holes 25.
The plurality of grooves 47 are formed on the outer peripheral surface of the cylindrical portion 22 in a ring shape extending in the circumferential direction. The plurality of groove portions 47 are formed to be spaced apart from each other in the axial line C direction. The plurality of grooves 48 are formed on the inner circumferential surface of the cylindrical portion 22 in a ring shape extending in the circumferential direction. The plurality of grooves 48 are formed spaced apart from each other in the direction of the axis C. The plurality of grooves 47 and 48 are alternately arranged in the direction of the axis C. The cylindrical part 22 in which several groove parts 47 and 48 were formed is wavelike.
The shapes of the groove and the tubular portion may be determined such that the shapes of the plurality of spiral or spline grooves and the waved cylindrical portion 22 described above are combined and compounded.

図９に示す継手保持部材５１のように、継手保持部材２１において、複数の貫通孔２５に代えて、筒状部２２に複数の溝部５２が形成されてもよい。複数の溝部５２は、筒状部２２の外周面に、軸線Ｃ方向に延びるように形成されている。複数の溝部５２は、互いに周方向に間隔を空けて並べて形成されている。周方向に隣り合う溝部５２の間には、第２突部５３が形成されている。第２突部５３は、筒状部２２の軸線Ｃ方向の全長にわたって延びている。複数の溝部５２により、複数の第２突部５３が形成されている。複数の第２突部５３は、放熱フィン状である。
第２突部５３における周方向を向く側面には、切欠き５３ａが形成されている。切欠き５３ａは、この側面における径方向の中間部に形成され、第２突部５３の全長にわたって軸線Ｃ方向に延びるように形成されている。 Like the joint holding member 51 shown in FIG. 9, in the joint holding member 21, a plurality of groove portions 52 may be formed in the cylindrical portion 22 instead of the plurality of through holes 25. The plurality of grooves 52 are formed on the outer peripheral surface of the cylindrical portion 22 so as to extend in the direction of the axis C. The plurality of groove portions 52 are formed side by side at intervals in the circumferential direction. The second protrusion 53 is formed between the groove portions 52 adjacent in the circumferential direction. The second protrusion 53 extends over the entire length of the cylindrical portion 22 in the direction of the axis C. A plurality of second protrusions 53 are formed by the plurality of grooves 52. The plurality of second protrusions 53 are in the form of heat dissipating fins.
A notch 53 a is formed on the side surface of the second protrusion 53 facing in the circumferential direction. The notch 53 a is formed at a radial intermediate portion on the side surface, and is formed to extend in the direction of the axis C over the entire length of the second protrusion 53.

このように継手保持部材３６，４１，４６，５１を構成しても、本実施形態の継手保持部材２１と同様の効果を奏することができる。
さらに、継手保持部材５１において第２突部５３に切欠き５３ａが形成されているため、第２突部５３に径方向の圧縮力が作用したときに、第２突部５３が径方向に変形しやすい。従って、継手本体１２に筒状部２２をさらに嵌め合わせやすくし、継手本体１２から筒状部２２をさらに取外しやすくすることができる。切欠き５３ａの形状により、圧縮力を受けた第２突部５３の反発力を調節することができる。 Even when the joint holding members 36, 41, 46, 51 are configured as described above, the same effect as the joint holding member 21 of the present embodiment can be obtained.
Furthermore, since the notch 53a is formed in the second projection 53 in the joint holding member 51, the second projection 53 is deformed in the radial direction when a compressive force in the radial direction acts on the second projection 53. It's easy to do. Therefore, the tubular portion 22 can be further easily fitted to the joint body 12, and the tubular portion 22 can be further easily removed from the joint body 12. The repulsive force of the second protrusion 53 which receives the compressive force can be adjusted by the shape of the notch 53a.

なお、継手保持部材３１，３６，４１，４６，５１に形成される溝部３２，３７，４２，４７，４８，５２の数は特に限定されず、１本でもよい。   The number of grooves 32, 37, 42, 47, 48, 52 formed in the joint holding members 31, 36, 41, 46, 51 is not particularly limited, and may be one.

図１０に示す継手保持部材５６のように、継手保持部材２１の各構成に加えて第３突部５７を備えてもよい。この変形例では、第３突部５７は円筒状に形成され、鍔部２３の径方向外側の端部から軸線Ｃ方向に沿って突出している。第３突部５７は、鍔部２３から筒状部２２の外周面に対向するように突出している。すなわち、第３突部５７は、鍔部２３から鍔部２３に対する筒状部２２側に向かって突出している。
この変形例の継手保持部材５６によれば、第３突部５７により鍔部２３の剛性を高くすることができる。
第３突部５７が継手本体１２の径方向外側の面を覆うため、第３突部５７が他の部材に引っ掛かり、継手本体１２から継手保持部材５６が外れてしまうことを抑制することができる。
なお、第３突部は、鍔部２３の径方向外側の端部における周方向の一部に形成されてもよい。第３突部は、鍔部２３の径方向の中間部から突出してもよい。 As in the joint holding member 56 shown in FIG. 10, in addition to the components of the joint holding member 21, a third protrusion 57 may be provided. In this modification, the third projection 57 is formed in a cylindrical shape and protrudes from the radial outer end of the collar 23 along the direction of the axis C. The third projection 57 projects from the collar 23 so as to face the outer peripheral surface of the cylindrical portion 22. That is, the third projection 57 projects from the collar 23 toward the cylindrical portion 22 with respect to the collar 23.
According to the joint holding member 56 of this modification, the rigidity of the collar portion 23 can be increased by the third projection 57.
Since the third projection 57 covers the radial outer surface of the joint body 12, it is possible to suppress the third projection 57 from being caught by another member and disengaging the joint holding member 56 from the joint body 12. .
The third projection may be formed on a part of the radial outer end of the collar 23 in the circumferential direction. The third protrusion may protrude from the radial intermediate portion of the collar 23.

（第２実施形態）
次に、本発明の第２実施形態について図１１及び図１２を参照しながら説明するが、前記実施形態と同一の部位には同一の符号を付してその説明は省略し、異なる点についてのみ説明する。
図１１に示すように、本実施形態の継手保持部材６１は、継手保持部材２１の各構成に加えて１枚のタブ（摘み）６２及び第１突部６３を備えている。
タブ６２は、平板状に形成され、鍔部２３の径方向外側の縁部から径方向外側に向かって突出している。この例では、タブ６２は、鍔部２３の縁部における周方向の一部から径方向外側に向かって突出している。鍔部２３における筒状部２２とは反対側の外面と、タブ６２の外面とは面一である。なお、タブ６２の厚さが薄い方が、タブ６２を折り畳みやすくなるので、好ましい。 Second Embodiment
Next, a second embodiment of the present invention will be described with reference to FIGS. 11 and 12. However, the same parts as those in the above embodiment will be assigned the same reference numerals and descriptions thereof will be omitted, and only different points will be described. explain.
As shown in FIG. 11, in addition to the components of the joint holding member 21, the joint holding member 61 of the present embodiment is provided with one tab (pick) 62 and a first protrusion 63.
The tab 62 is formed in a flat plate shape, and protrudes outward in the radial direction from the radially outer edge of the collar portion 23. In this example, the tab 62 protrudes radially outward from a part in the circumferential direction at the edge of the collar portion 23. The outer surface of the collar portion 23 opposite to the cylindrical portion 22 is flush with the outer surface of the tab 62. It is preferable that the thickness of the tab 62 be smaller because the tab 62 can be easily folded.

タブ６２の幅は、鍔部２３の内径以上である。タブ６２の径方向の長さＬ３は、径方向における鍔部２３の内周面から外周面までの長さＬ４よりも長い。
第１突部６３は、例えば円柱状に形成され、タブ６２の径方向外側の端部に設けられている。第１突部６３は、タブ６２に対して筒状部２２とは反対側に配置されている。
図１２に示すように、第１突部６３の外径とインコア１３の胴部１５の内径とは、互いに同等である。すなわち、第１突部６３は、インコア１３の胴部１５内に嵌め合い可能である。
例えば、タブ６２及び第１突部６３は、軸状部材２６及び鍔部２３と同一の材料で、軸状部材２６及び鍔部２３と一体に形成されている。 The width of the tab 62 is equal to or greater than the inner diameter of the collar 23. The radial length L3 of the tab 62 is longer than the length L4 from the inner circumferential surface to the outer circumferential surface of the flange 23 in the radial direction.
The first protrusion 63 is formed, for example, in a cylindrical shape, and is provided at the radially outer end of the tab 62. The first protrusion 63 is disposed on the opposite side of the tab 62 to the tubular portion 22.
As shown in FIG. 12, the outer diameter of the first protrusion 63 and the inner diameter of the trunk portion 15 of the in-core 13 are equal to each other. That is, the first projection 63 can be fitted into the trunk portion 15 of the in-core 13.
For example, the tab 62 and the first projection 63 are formed of the same material as the shaft 26 and the collar 23 and integrally formed with the shaft 26 and the collar 23.

次に、この継手保持部材６１と、前述の継手１１と、を備える継手保持構造２を構成する手順について説明する。以下では、継手保持部材６１を用いる手順を中心に説明する。
予め、タブ６２は、図１２中に二点鎖線で示すように、鍔部２３から径方向外側に向かって突出している。
作業者は、継手保持部材６１の筒状部２２内に、鍔部２３側からインコア１３の胴部１５を挿入する。さらに、継手本体１２内に継手保持部材６１の筒状部２２を挿入する。タブ６２を折り畳んで、インコア１３の胴部１５内に第１突部６３を嵌め合わせる。このように、インコア１３内に第１突部６３を配置した状態で、継手本体１２内に継手保持部材６１を介してインコア１３を保持する。 Next, the procedure which comprises the joint holding structure 2 provided with this joint holding member 61 and the above-mentioned joint 11 is demonstrated. In the following, the procedure using the joint holding member 61 will be mainly described.
In advance, the tab 62 protrudes radially outward from the collar portion 23 as indicated by a two-dot chain line in FIG. 12.
The worker inserts the trunk portion 15 of the in-core 13 into the cylindrical portion 22 of the joint holding member 61 from the flange portion 23 side. Furthermore, the cylindrical portion 22 of the joint holding member 61 is inserted into the joint main body 12. The tab 62 is folded to fit the first projection 63 into the trunk 15 of the in-core 13. Thus, the in-core 13 is held in the joint body 12 via the joint holding member 61 in a state where the first protrusion 63 is disposed in the in-core 13.

なお、継手本体１２及びインコア１３から継手保持部材６１を取外すには、例えば作業者はタブ６２を把持してインコア１３から第１突部６３を取外す。タブ６２を把持して、継手本体１２から筒状部２２を取外し、インコア１３から筒状部２２を取外す。   In order to remove the joint holding member 61 from the joint body 12 and the in-core 13, for example, the operator grasps the tab 62 and removes the first projection 63 from the in-core 13. The tab 62 is gripped, the tubular portion 22 is removed from the joint body 12, and the tubular portion 22 is removed from the in-core 13.

例えば、工場や水道工事店内で事前にプレハブユニットを作った場合、梱包箱から継手本体１２及びインコア１３が取り出されるが、パイプＰとは接続されない状態でしばらく放置されることが考えられる。
このような場合には、テープ等で継手本体１２の開口部を現場養生（閉塞）すれば問題ない。しかし、施工時の手間を減らすため、必要に応じ、タブ６２を折り畳んでインコア１３に蓋ができる構成にした。 For example, when a prefabricated unit is made in advance in a factory or a waterworks shop, it is conceivable that the joint body 12 and the in-core 13 are taken out of the packing box but are left for a while without being connected to the pipe P.
In such a case, there is no problem if the opening of the joint body 12 is cured (blocked) with a tape or the like. However, in order to reduce time and labor during construction, the tab 62 is folded as needed so that the in-core 13 can be covered.

以上説明したように、本実施形態の継手保持部材６１及び継手保持構造２によれば、継手本体１２内にインコア１３が入り込むのを抑制し、かつ、継手本体１２の流路断面積を大きく確保することができる。
さらに、継手保持部材６１がタブ６２を備える。作業者がタブ６２を把持して操作することにより、継手本体１２及びインコア１３から継手保持部材６１を取外しやすくすることができる。さらに、継手保持部材６１の位置を作業者が視認しやすくすることができる。
タブ６２の端部に、第１突部６３が設けられている。タブ６２を折り畳んでインコア１３内に第１突部６３を嵌め合わせると、インコア１３内に第１突部６３が配置される。これにより、施工現場等において、インコア１３内にゴミ等が入るのを抑制することができる。 As described above, according to the joint holding member 61 and the joint holding structure 2 of the present embodiment, the in-core 13 is prevented from entering the joint body 12 and the flow passage cross-sectional area of the joint body 12 is largely secured. can do.
Furthermore, the joint holding member 61 is provided with the tab 62. By holding and operating the tab 62 by the operator, the joint holding member 61 can be easily removed from the joint body 12 and the in-core 13. Furthermore, the position of the joint holding member 61 can be easily recognized by the operator.
At the end of the tab 62, a first projection 63 is provided. When the tab 62 is folded and the first projection 63 is fitted in the in-core 13, the first projection 63 is disposed in the in-core 13. Thereby, in a construction site etc., it can suppress that refuse etc. enter inside core 13.

なお、本実施形態では、継手保持部材６１が１枚のタブ６２を備えるとしたが、継手保持部材６１が２枚以上のタブ６２を備えるとしてもよい。
タブ６２に第１突部６３に代えて係合部を設け、筒状部２２に、係合部に着脱可能な被係合部を設けてもよい。そして、係合部と被係合部とを取付けることにより、インコア１３内が閉塞されるように構成してもよい。このよう構成しても、本実施形態の継手保持部材６１と同様の効果を奏することができる。
タブ６２に第１突部６３が設けられなくてもよい。 In the present embodiment, although the joint holding member 61 is provided with one tab 62, the joint holding member 61 may be provided with two or more tabs 62.
The tab 62 may be provided with an engaging portion instead of the first protrusion 63, and the cylindrical portion 22 may be provided with an engaged portion which can be attached to and detached from the engaging portion. And you may comprise so that the inside of in core 13 may be obstruct | occluded by attaching an engaging part and a to-be-engaged part. Even with this configuration, the same effect as the joint holding member 61 of the present embodiment can be obtained.
The first protrusion 63 may not be provided on the tab 62.

以上、本発明の第１実施形態及び第２実施形態について図面を参照して詳述したが、具体的な構成はこの実施形態に限られるものではなく、本発明の要旨を逸脱しない範囲の構成の変更、組み合わせ、削除等も含まれる。さらに、各実施形態で示した構成のそれぞれを適宜組み合わせて利用できることは、言うまでもない。
例えば、前記第１実施形態及び第２実施形態では、筒状部２２に貫通孔や溝部は形成されなくてもよい。 As mentioned above, although 1st Embodiment and 2nd Embodiment of this invention were explained in full detail with reference to drawings, a specific structure is not restricted to this embodiment, The structure of the range which does not deviate from the summary of this invention Changes, combinations, deletions etc. are also included. Furthermore, it goes without saying that each of the configurations shown in each embodiment can be used in combination as appropriate.
For example, in the first and second embodiments, the through hole or the groove may not be formed in the cylindrical portion 22.

継手本体１２及びインコア１３の胴部１５は円筒状に形成されているとしたが、継手本体１２及び胴部１５の形状はこれに限定されない。継手本体１２及び胴部１５は、例えば、軸線に直交する断面の形状が楕円形、多角形等である筒状であってもよい。   Although the body 15 of the joint body 12 and the in-core 13 is formed in a cylindrical shape, the shapes of the joint body 12 and the body 15 are not limited thereto. The joint main body 12 and the body portion 15 may have, for example, a cylindrical shape in which the shape of the cross section orthogonal to the axis is an ellipse, a polygon or the like.

１，２ 継手保持構造
１１ 継手
１２ 継手本体
１３ インコア（内筒体）
２１，３１，３６，４１，４６，５１，５６，６１ 継手保持部材
２２ 筒状部
２３ 鍔部
２５ 貫通孔
３２，３７，４２，４７，４８，５２ 溝部
５３ 第２突部
５３ａ 切欠き
６２ タブ（摘み）
６３ 第１突部
Ｃ 軸線
Ｌ４ 長さ
Ｐ パイプ 1, 2 Joint holding structure 11 Joint 12 Joint body 13 In-core (inner cylinder)
21, 31, 36, 41, 46, 51, 56, 61 Joint holding member 22 Tubular portion 23 Flange portion 25 Through hole 32, 37, 42, 47, 48, 52 Groove portion 53 Second projection 53 a Notch 62 Tab (Picking)
63 first protrusion C axis L4 length P pipe

Claims (7)

パイプと接続される継手における筒状の継手本体と、前記継手本体内に配置される内筒体と、を保持するのに用いられる継手保持部材であって、
前記継手本体と前記内筒体との間に嵌め合う筒状部と、
前記筒状部から径方向外側に向かって突出する鍔部と、
を備える継手保持部材。 A joint holding member used to hold a cylindrical joint body in a joint connected to a pipe and an inner cylindrical body disposed in the joint body,
A tubular portion fitted between the joint body and the inner tubular body;
A collar portion protruding radially outward from the cylindrical portion;
Joint holding member comprising: 前記鍔部の径方向外側の縁部から突出する摘みを備える請求項１に記載の継手保持部材。   The joint holding member according to claim 1, further comprising: a knob protruding from a radially outer edge of the collar. 前記摘みに設けられ、前記内筒体内に嵌め合う第１突部を備える請求項２に記載の継手保持部材。   The joint holding member according to claim 2 provided with the 1st projection provided in said knob and fitted in said inner cylinder. 前記筒状部の外周面及び内周面の少なくとも一方に溝部が形成されている請求項１から３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 3, wherein a groove is formed in at least one of the outer peripheral surface and the inner peripheral surface of the cylindrical portion. 前記筒状部の外周面から内周面に達する貫通孔が形成されている請求項１から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 a through hole extending from an outer peripheral surface of the cylindrical portion to an inner peripheral surface is formed. 前記溝部が複数並べて形成され、
前記複数の溝部の間に形成された第２突部に切欠きが形成されている請求項４に記載の継手保持部材。 A plurality of grooves are formed side by side,
The joint holding member according to claim 4, wherein a notch is formed in a second protrusion formed between the plurality of grooves. 請求項１から６のいずれか一項に記載の継手保持部材と、
前記継手と、
を備える継手保持構造。 The joint holding member according to any one of claims 1 to 6,
Said joint,
Joint holding structure provided with
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020159447A (en) * 2019-03-26 2020-10-01 日本製鉄株式会社 Protection tool and metal pipe with protection tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020159447A (en) * 2019-03-26 2020-10-01 日本製鉄株式会社 Protection tool and metal pipe with protection tool

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