JP5459830B2 - Sound insulation cover for collecting pipe - Google Patents

Sound insulation cover for collecting pipe Download PDF

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JP5459830B2
JP5459830B2 JP2009088209A JP2009088209A JP5459830B2 JP 5459830 B2 JP5459830 B2 JP 5459830B2 JP 2009088209 A JP2009088209 A JP 2009088209A JP 2009088209 A JP2009088209 A JP 2009088209A JP 5459830 B2 JP5459830 B2 JP 5459830B2
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branch pipe
cutting position
pipe
connection port
cutting
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JP2010236688A (en
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直樹 藤丸
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Inaba Denki Sangyo Co Ltd
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Description

本発明は、例えば、集合住宅の排水合流部等に用いられる集合管に対して、それの管周壁部を被覆する状態で配設される可撓性の集合管用遮音カバーに関する。   The present invention relates to a flexible sound insulation cover for a collective pipe that is disposed in a state of covering a pipe peripheral wall portion of a collective pipe used for, for example, a drainage confluence portion of an apartment house.

一般に、排水管等の流体管の管周壁部には、通過流体の通過音等の騒音を抑止するために遮音性を有する遮音カバーで被覆する措置が採られている。特に、管周壁部に枝管接続口部を備えた集合管については、流体の合流によって騒音が大きくなるために遮音カバーで隙間なく被覆する必要がある。   In general, measures are taken to cover a peripheral wall portion of a fluid pipe such as a drain pipe with a sound insulation cover having a sound insulation property in order to suppress noise such as passing sound of the passing fluid. In particular, a collecting pipe having a branch pipe connection port part on the pipe peripheral wall part needs to be covered with a sound insulation cover without a gap because noise increases due to the merging of fluids.

しかしながら、集合管においては、１個又は複数個の枝管接続口部が管周壁部に備えられている関係上、通常の単なる矩形状の広面積の遮音カバーでは、枝管接続口部が邪魔になって、遮音シートの被覆作業が難しい問題がある。   However, in the collecting pipe, one or a plurality of branch pipe connection ports are provided on the pipe peripheral wall, so that the branch pipe connection port is a hindrance in an ordinary simple rectangular sound insulation cover having a large area. Therefore, there is a problem that it is difficult to cover the sound insulation sheet.

そこで、従来、集合管の管周壁部を被覆するための集合管用遮音カバーとしては、集合管の管周壁部に対して枝管接続口部を避けながら複数回巻き付ける（直接巻き付ける場合やグラスウールなどの吸音性遮音材を介在させた状態で巻き付ける場合がある）ことのできるように、長尺で細幅のテープ状に構成されたものが用いられていた。   Therefore, conventionally, as a sound insulation cover for a collecting pipe for covering the pipe peripheral wall part of the collecting pipe, it is wound around the pipe peripheral wall part a plurality of times while avoiding the branch pipe connection port part (such as direct winding or glass wool). In some cases, a long and narrow tape-shaped tape is used so that a sound-absorbing sound-insulating material may be wound.

ところが、上記の如き従来の集合管用遮音カバーでは、集合管の管周壁部に対して枝管接続口部を避けながら複数回巻き付けるのに相当の手間と時間を要する問題があった。また、その巻き付け作業を行う施工者の技術によって品質（遮音性能）にバラツキが生じ易い問題もあった。   However, in the conventional sound insulation cover for a collecting pipe as described above, there is a problem that it takes considerable labor and time to wrap around the pipe peripheral wall portion of the collecting pipe a plurality of times while avoiding the branch pipe connection opening. There is also a problem that quality (sound insulation performance) is likely to vary depending on the technique of the installer who performs the winding operation.

本発明は、上述の実情に鑑みて為されたものであって、その主たる課題は、施工性に優れ、且つ、品質のバラツキも生じ難い集合管用遮音カバーを提供する点にある。   The present invention has been made in view of the above-described circumstances, and its main problem is to provide a sound insulation cover for a collecting pipe that is excellent in workability and hardly causes variations in quality.

本発明の第１特徴構成は、集合管用遮音カバーに係り、その特徴は、
管周壁部に枝管接続口部を備えた集合管に対して管周壁部を被覆する状態で配設される可撓性の集合管用遮音カバーであって、
前記枝管接続口部に対向配置される部位には、枝管接続口部又はこれに接続される枝管が挿通状態又は略挿通状態で配置可能な挿通部を切断操作によって現出するための挿通部形成用の切断位置指示印が設けられており、
前記切断位置指示印が、外形寸法の異なる複数種の前記挿通部を切断操作によって現出可能な形態に構成されているとともに、
外形寸法の異なる複数種の環状又は略環状の切断位置指示線から構成されており、
複数の前記切断位置指示線が、外形寸法の最も大きい前記切断位置指示線の同一箇所又は略同一箇所に接続する片寄せ状態で設けられている点にある。 The first characteristic configuration of the present invention relates to a sound insulation cover for a collecting pipe,
A flexible sound insulation cover for a collective pipe disposed in a state of covering the pipe peripheral wall with respect to a collective pipe provided with a branch pipe connection port on the pipe peripheral wall,
In the portion arranged opposite to the branch pipe connection port portion, the branch pipe connection port portion or the insertion portion where the branch pipe connected to the branch pipe connection port portion can be arranged in an inserted state or a substantially inserted state is revealed by a cutting operation. A cutting position indication mark for forming the insertion portion is provided ,
The cutting position indication mark is configured in a form capable of appearing by a cutting operation of a plurality of types of the insertion portions having different external dimensions,
It consists of multiple types of annular or substantially annular cutting position indicating lines with different external dimensions,
The plurality of cutting position indicating lines are provided in a justified state where they are connected to the same or substantially the same position of the cutting position indicating line having the largest external dimension .

上記構成によれば、枝管接続口部に対向配置される部位に形成された挿通部形成用の切断位置指示印に基づく切断操作によって、管接続口部又はこれに接続される枝管が挿通状態又は略挿通状態で配置可能な挿通部を現出することができるから、その切断操作とその後の管周壁部への近接操作という簡単な作業によって枝管接続口部や枝管を挿通部に挿通させる形態で管周壁部を被覆することができ、これにより、施工性を大幅に高めることができる。   According to the above configuration, the pipe connection port portion or the branch pipe connected thereto is inserted by the cutting operation based on the cutting position indication mark for forming the insertion portion formed in the portion arranged to be opposed to the branch pipe connection port portion. Since the insertion part that can be arranged in the state or substantially inserted state can be revealed, the branch pipe connection port part and the branch pipe can be made into the insertion part by a simple operation of cutting operation and subsequent approach to the pipe peripheral wall part. The pipe peripheral wall portion can be covered in a form to be inserted, whereby the workability can be greatly improved.

さらに、枝管接続口部又は枝管を前記切断操作で現出された前記挿通部の内周縁で囲う形態で枝管接続口部又は枝管の外周りを被覆処理することができるから、施工者の技術によって品質にバラツキが生じることも効果的に抑止することができる。   Furthermore, since the outer periphery of the branch pipe connection port or the branch pipe can be coated in a form that surrounds the branch pipe connection port or the branch pipe with the inner periphery of the insertion portion that has appeared in the cutting operation, It is also possible to effectively prevent variations in quality due to a person's skill.

さらに、第１特徴構成では、前記切断位置指示印が、外形寸法の異なる複数種の前記挿通部を切断操作によって現出可能な形態に構成されているから、次の作用効果も奏する。 Furthermore, in the first characteristic configuration, the cutting position indication mark is configured to be able to appear by cutting operation of a plurality of types of the insertion portions having different external dimensions, and thus has the following effects .

つまり、外径寸法が異なる複数種の枝管接続口部や枝管が存在することに対して、その枝管接続口部や枝管の種別に応じた外形寸法の挿通部を現出することができるから、枝管接続口部や枝管の種別にかかわらず所期の品質を確保することができ、これにより、使用箇所に対する汎用性を高めることができる。 In other words , when there are a plurality of types of branch pipe connection ports and branch pipes having different outer diameter dimensions, an insertion part having an outer dimension corresponding to the type of the branch pipe connection port or branch pipe appears. Therefore, the desired quality can be ensured regardless of the branch pipe connection port and the type of the branch pipe, and thus versatility with respect to the place of use can be enhanced.

本発明の第２特徴構成は、集合管用遮音カバーに係り、その特徴は、
管周壁部に枝管接続口部を備えた集合管に対して管周壁部を被覆する状態で配設される可撓性の集合管用遮音カバーであって、
前記枝管接続口部に対向配置される部位には、枝管接続口部又はこれに接続される枝管が挿通状態又は略挿通状態で配置可能な挿通部を切断操作によって現出するための挿通部形成用の切断位置指示印が設けられており、
前記切断位置指示印が、外形寸法の異なる複数種の前記挿通部を切断操作によって現出可能な形態に構成されているとともに、
外形寸法の異なる複数種の環状又は略環状の切断位置指示線から構成されており、
複数の前記切断位置指示線が、表面視で外側辺部の同一箇所又は略同一箇所に接続する片寄せ状態で設けられている点にある。 A second characteristic configuration of the present invention relates to a sound insulation cover for a collecting pipe,
A flexible sound insulation cover for a collective pipe disposed in a state of covering the pipe peripheral wall with respect to a collective pipe provided with a branch pipe connection port on the pipe peripheral wall,
In the portion arranged opposite to the branch pipe connection port portion, the branch pipe connection port portion or the insertion portion where the branch pipe connected to the branch pipe connection port portion can be arranged in an inserted state or a substantially inserted state is revealed by a cutting operation. A cutting position indication mark for forming the insertion portion is provided,
The cutting position indication mark is configured in a form capable of appearing by a cutting operation of a plurality of types of the insertion portions having different external dimensions,
It consists of multiple types of annular or substantially annular cutting position indicating lines with different external dimensions ,
The plurality of cutting position indicating lines are provided in a side-by-side state where they are connected to the same place or substantially the same place on the outer side part in a surface view.

上記構成によれば、枝管接続口部に対向配置される部位に形成された挿通部形成用の切断位置指示印に基づく切断操作によって、管接続口部又はこれに接続される枝管が挿通状態又は略挿通状態で配置可能な挿通部を現出することができるから、その切断操作とその後の管周壁部への近接操作という簡単な作業によって枝管接続口部や枝管を挿通部に挿通させる形態で管周壁部を被覆することができ、これにより、施工性を大幅に高めることができる。
さらに、枝管接続口部又は枝管を前記切断操作で現出された前記挿通部の内周縁で囲う形態で枝管接続口部又は枝管の外周りを被覆処理することができるから、施工者の技術によって品質にバラツキが生じることも効果的に抑止することができる。
また、第２特徴構成では、前記切断位置指示印が、外形寸法の異なる複数種の前記挿通部を切断操作によって現出可能な形態に構成されているから、次の作用効果も奏する。
つまり、外径寸法が異なる複数種の枝管接続口部や枝管が存在することに対して、その枝管接続口部や枝管の種別に応じた外形寸法の挿通部を現出することができるから、枝管接続口部や枝管の種別にかかわらず所期の品質を確保することができ、これにより、使用箇所に対する汎用性を高めることができる。
また、第２特徴構成では、外形寸法の異なる複数種の環状又は略環状の切断位置指示線から構成されており、複数の前記切断位置指示線が、表面視で外側辺部の同一箇所又は略同一箇所に接続する片寄せ状態で設けられているから、次の作用効果も奏する。
つまり、外形寸法の異なる複数種の挿通部の各々に対して、外側辺部の指示線接続部（進入部）を通じての極力少ない移動操作量でもって外側辺部から枝管接続口部又は枝管を配置することができるから、枝管接続口部又は枝管をそれらの径方向からでも集合管の管周壁部に配設することが可能になって、施工性を一層向上させることができるとともに、例えば、枝管接続口部に既に枝管が接続された状態での後施工も可能にすることができる。 According to the above configuration, the pipe connection port portion or the branch pipe connected thereto is inserted by the cutting operation based on the cutting position indication mark for forming the insertion portion formed in the portion arranged to be opposed to the branch pipe connection port portion. Since the insertion part that can be arranged in the state or substantially inserted state can be revealed, the branch pipe connection port part and the branch pipe can be made into the insertion part by a simple operation of cutting operation and subsequent approach to the pipe peripheral wall part. The pipe peripheral wall portion can be covered in a form to be inserted, whereby the workability can be greatly improved.
Furthermore, since the outer periphery of the branch pipe connection port or the branch pipe can be coated in a form that surrounds the branch pipe connection port or the branch pipe with the inner periphery of the insertion portion that has appeared in the cutting operation, It is also possible to effectively prevent variations in quality due to a person's skill.
Further, in the second feature configuration, the cutting position indicating mark is configured in such a form that a plurality of types of the insertion portions having different external dimensions can be revealed by a cutting operation.
In other words, when there are a plurality of types of branch pipe connection ports and branch pipes having different outer diameter dimensions, an insertion part having an outer dimension corresponding to the type of the branch pipe connection port or branch pipe appears. Therefore, the desired quality can be ensured regardless of the branch pipe connection port and the type of the branch pipe, and thus versatility with respect to the place of use can be enhanced.
Further, in the second feature configuration, it is composed of a plurality of types of annular or substantially annular cutting position indicating lines having different outer dimensions, and the plurality of cutting position indicating lines are the same or substantially the same on the outer side portion in the surface view. Since it is provided in a side-by-side connection state connected to the same location, the following effects are also achieved.
That is, for each of a plurality of types of insertion parts having different outer dimensions, the branch pipe connection port or the branch pipe from the outer side part with the least amount of movement operation through the indicator line connection part (entrance part) on the outer side part. Since it is possible to arrange the branch pipe connection port or branch pipe on the pipe peripheral wall of the collecting pipe even from their radial direction, the workability can be further improved. For example, it is possible to perform post-installation with the branch pipe already connected to the branch pipe connection port.

本発明の第３特徴構成は、複数の前記切断位置指示線どうしの間には、外形寸法の小さい側の切断位置指示線の切断操作によって、その切断操作で現出される挿通部の内周縁を形成する状態で前記挿通部の側に突出する舌片を現出する切り込み、又は、前記切断位置指示線の切断操作とは異なる別の切断操作によって前記舌片を現出するための舌片形成用の切断位置指示印が設けられている点にある。 The third characteristic configuration of the present invention, between the cutting position indication line each other in the multiple, the cutting operation of the small side of the cutting position indicator line of external dimensions, of the insertion portion to be revealing in that the cutting operation A tongue for revealing the tongue piece by a cutting operation that reveals a tongue piece protruding toward the insertion portion in a state of forming a peripheral edge, or by a cutting operation different from the cutting operation of the cutting position indicating line A cutting position indicating mark for forming a piece is provided.

つまり、外形寸法の小さい側の挿通部の内周縁を形成する状態で前記挿通部の側に突出する舌片があれば、その舌片の突出範囲において舌片を曲げる形態で前記挿通部の設定管径よりも大きな管径の枝管接続口部や枝管を品質の維持を図りながら挿通部に配置することが可能になる。   In other words, if there is a tongue piece that protrudes toward the insertion portion in a state where the inner peripheral edge of the insertion portion on the side having a smaller outer dimension is formed, the setting of the insertion portion in a form in which the tongue piece is bent in the protruding range of the tongue piece. It becomes possible to arrange a branch pipe connection port or a branch pipe having a pipe diameter larger than the pipe diameter in the insertion portion while maintaining quality.

そして、上記構成によれば、外形寸法の小さい側の切断位置指示線の切断操作、或いは、それとは異なる別の切断操作という簡単な操作によって、前記の舌片を現出することができるから、施工性と品質の両面で一層優れたものとすることができる。   And, according to the above configuration, the tongue piece can be revealed by a simple operation of cutting operation of the cutting position indicating line on the side having a smaller external dimension, or another cutting operation different from the cutting operation. It can be made more excellent in both workability and quality.

本発明の第４特徴構成は、前記切断操作によって前記挿通部が現出される部位の隣接箇所の裏面には、前記集合管に対する固定用の接着面部が設けられているとともに、
前記接着面部が、前記切断操作によって前記挿通部が現出される部位の中心点よりも前
記外側片部の側の領域に設けられている点にある。 In the fourth feature configuration of the present invention, an adhesive surface portion for fixing to the collecting pipe is provided on the back surface of the portion adjacent to the portion where the insertion portion appears by the cutting operation .
The adhesive surface portion is in front of the center point of the portion where the insertion portion appears by the cutting operation.
It exists in the point provided in the area | region of the outer side piece part side .

上記構成によれば、集合管の管周壁部への被覆作業に際して、品質への影響の大きな枝管接続口部又は枝管の周りの部分の姿勢を前記接着面部で同時的に固定することができる。 According to the above configuration, the posture of the branch pipe connection port part or the part around the branch pipe having a great influence on the quality can be simultaneously fixed by the adhesive surface part when the pipe peripheral wall is covered with the collecting pipe. it can.

これにより、集枝管接続口部又は枝管周りの部分に隙間が生じないように挿通部周りの部分を保持しながら集合管の管周壁部への被覆作業を続行する場合に比べ、施工性を一層向上させることができる。Compared to the case where the covering work on the pipe peripheral wall of the collecting pipe is continued while holding the part around the insertion part so that no gap is generated in the part around the collecting pipe connecting port or the branch pipe, the workability is improved. Can be further improved.

しかも、前記接着面部が、前記切断操作によって前記挿通部が現出される部位の中心点よりも前記外側辺部の側の領域に設けられているから、前記挿通部の外側辺部に接続する部分から枝管接続口部や枝管の進入を許容することに対し、枝管接続口部又は枝管の周りの部分のうち、枝管接続口部や枝管の進入部を塞ぐ又は小さくするための挿通部の外側辺部側部分の姿勢を前記接着面部で所望の姿勢で固定することができる。And since the said adhesion surface part is provided in the area | region of the said outer side part side rather than the center point of the site | part where the said insertion part appears by the said cutting operation, it connects with the outer side part of the said insertion part. The entrance of the branch pipe connection port or the branch pipe is allowed from the portion, whereas the branch pipe connection port or the entrance part of the branch pipe in the portion around the branch pipe connection port or the branch pipe is blocked or reduced. Therefore, the posture of the outer side portion side portion of the insertion portion can be fixed in a desired posture by the bonding surface portion.

これにより、施工性と品質の両面で更に一層優れたものとすることができる。 This ensures that further may be provided with more excellent in both workability and quality.

排水合流部の説明図Illustration of drainage junction （ａ）上部カバーの表側斜視図、（ｂ）上部カバーの要部の拡大表面図(A) Front side perspective view of upper cover, (b) Enlarged surface view of main part of upper cover 上部カバーの配設方法を示す説明図Explanatory drawing showing how to arrange the top cover 上部カバーの配設方法を示す説明図Explanatory drawing showing how to arrange the top cover （ａ）上部カバーの配設状態を示す要部の横断面図（図１のＶ−Ｖ線説明断面図）、（ｂ）上部カバーの配設状態を示す要部の横断面図（図１のＶ−Ｖ線説明断面図）、（ｃ）上部カバーの配設状態を示す要部の横断面図（図１のＶ−Ｖ線説明断面図）、（ｄ）上部カバーの配設状態を示す要部の側面図(A) Cross-sectional view of the main part showing the arrangement state of the upper cover (cross-sectional view taken along line VV in FIG. 1), (b) Cross-sectional view of the main part showing the arrangement state of the upper cover (FIG. 1) VV line explanatory cross-sectional view), (c) a cross-sectional view of the main part showing the arrangement state of the upper cover (VV line explanatory cross-sectional view of FIG. 1), (d) the arrangement state of the upper cover Side view of essential parts shown 下部カバーの裏側斜視図Back side perspective view of bottom cover 下部カバーの配設方法を示す説明図Explanatory drawing which shows the arrangement method of a lower cover 下部カバーの配設方法を示す説明図Explanatory drawing which shows the arrangement method of a lower cover 下部カバーの配設方法を示す説明図Explanatory drawing which shows the arrangement method of a lower cover 下部カバーの配設方法を示す説明図Explanatory drawing which shows the arrangement method of a lower cover 下部カバーの配設方法を示す説明図Explanatory drawing which shows the arrangement method of a lower cover 下部カバーの配設方法を示す説明図Explanatory drawing which shows the arrangement method of a lower cover （ａ）枝管接続部用カバーの一部破断表面図、（ｂ）枝管接続部用カバーの縦断面図(A) Partially cutaway surface view of the branch pipe connection part cover, (b) Vertical sectional view of the branch pipe connection part cover 枝管接続部用カバーの配設方法を示す説明図Explanatory drawing which shows the arrangement | positioning method of the cover for branch pipe connection parts その他の実施形態を示す上部カバーの拡大表面図Enlarged surface view of the top cover showing other embodiments

図１は、建屋内の排水合流部を示し、床スラブＳに貫設された集合管１の主軸心Ｘ１方向の一端側（本例では上端側）の主管接続口部１Ａには、主流入管２が差し込み接続（接続の一例）されているとともに、集合管１の主軸芯Ｘ１方向における他端側（本例では下端側）の主管接続口部１Ｂには、主流出管３が差し込み接続されている。   FIG. 1 shows a drainage merging section in a building, and a main inflow pipe is provided at one end side (upper end side in this example) of the collecting pipe 1 extending through the floor slab S in the direction of the main axis X1. 2 is plugged in (an example of connection), and the main outlet pipe 3 is plugged into the main pipe connection port 1B on the other end side (the lower end side in this example) of the collecting pipe 1 in the direction of the main axis X1. ing.

また、集合管１の管周壁部１Ｄに突出形成された３つ（１つ以上の一例）の枝管接続口部１Ｅには、例えば、個別住戸分などを排水する枝管４の各々が差し込み接続されている。   Further, for example, each of the branch pipes 4 for draining individual dwelling units and the like is inserted into three (one or more examples) branch pipe connection ports 1E formed to project from the pipe peripheral wall part 1D of the collecting pipe 1. It is connected.

そして、主流入管２及び主流出管３並びに枝管４が、内部の流体通過音などの漏洩を抑止する可撓性の配管用遮音カバー５で被覆されているとともに、集合管１が、内部の流体通過音などの漏洩を抑止する可撓性の集合管用遮音カバー６で被覆されている。   The main inflow pipe 2, the main outflow pipe 3, and the branch pipe 4 are covered with a flexible piping sound insulation cover 5 that suppresses leakage of internal fluid passing sound, and the collecting pipe 1 It is covered with a flexible collecting pipe sound insulation cover 6 that suppresses leakage of fluid passing sound and the like.

前記集合管用遮音カバー６としては、集合管１における床スラブＳの上方に位置する部分及び集合管１と主流入管２との接続部を被覆する上部カバー２０（本発明に係る集合管用遮音カバーの一例）と、集合管１における床スラブＳの下方に位置する部分及び集合管１と主流出管３との接続部を被覆する下部カバー３０と、集合管１と枝管４との接続部の各々を被覆する枝管接続部用カバー４０の３種が用いられている。   The collecting pipe sound insulation cover 6 includes a portion of the collecting pipe 1 that is located above the floor slab S and an upper cover 20 that covers a connecting portion between the collecting pipe 1 and the main inflow pipe 2 (the sound collecting cover for the collecting pipe according to the present invention). An example), a lower cover 30 covering a portion located below the floor slab S in the collecting pipe 1 and a connecting portion between the collecting pipe 1 and the main outflow pipe 3, and a connecting portion between the collecting pipe 1 and the branch pipe 4 Three types of the branch pipe connection covers 40 that cover each of them are used.

前記上部カバー２０は、図２〜図４に示すように、グラスウールフェルト（遮音材の一例、吸音性を有する素材の一例）からなる内層側の吸音層２０Ａと、無機質混入ゴムアスファルト（遮音材の一例、耐熱材の一例）からなる遮音層２０Ｂと、合成樹脂製の不織布からなる劣化防止用兼作業性向上用の保護層２０Ｄとをその順に積層したシート状物を横長矩形状に成形して構成されている。   As shown in FIGS. 2 to 4, the upper cover 20 includes an inner sound-absorbing layer 20 </ b> A made of glass wool felt (an example of a sound insulating material, an example of a sound-absorbing material), and an inorganic rubber asphalt (a sound insulating material). A sheet-like material in which a sound insulating layer 20B made of an example, an example of a heat-resistant material) and a protective layer 20D for preventing deterioration and improving workability made of a synthetic resin nonwoven fabric are laminated in that order in a horizontally long rectangular shape. It is configured.

また、前記吸音層２０Ａの表面（つまり、上部カバー２０の内面）には、集合管１に固定するための両面テープ２１（接着面部の一例、固定手段の一例）が備えられている。当該両面テープ２１の接着面の全面には、着脱操作が可能な剥離紙（図示しない）が設けられている。   The surface of the sound absorbing layer 20A (that is, the inner surface of the upper cover 20) is provided with a double-sided tape 21 (an example of an adhesive surface part, an example of a fixing means) for fixing to the collecting pipe 1. Release paper (not shown) that can be attached and detached is provided on the entire adhesive surface of the double-sided tape 21.

前記上部カバー２０の横寸法（幅寸法）Ｗ２は、集合管１の管周壁部１Ｄの外周長に対応する寸法で構成されている。また、上部カバー２０の縦寸法（高さ寸法）Ｈ２は、集合管１に配設したとき、集合管１と主流入管２の接続部を越えて主流入管２の外周面まで到達可能な寸法で構成されている。   The horizontal dimension (width dimension) W2 of the upper cover 20 is configured with a dimension corresponding to the outer peripheral length of the pipe peripheral wall portion 1D of the collecting pipe 1. Further, the vertical dimension (height dimension) H2 of the upper cover 20 is a dimension that can reach the outer peripheral surface of the main inflow pipe 2 beyond the connecting portion between the collection pipe 1 and the main inflow pipe 2 when arranged in the collection pipe 1. It is configured.

そして、当該上部カバー２０の下部の横方向中間部位（集合管１に配設した状態で枝管接続口部１Ｅに対向配置される部位の一例）には、はさみやカッター等の切断手段を用いた切断操作によって枝管接続口部１Ｅが略挿通状態（挿通状態又は略挿通状態の一例）で配置可能な挿通口２２（挿通部の一例）を現出可能な３つ（１つ又は複数個の一例）の挿通部形成用の切断位置指印２３が横方向に沿って並ぶ状態で設けられている。   Then, a cutting means such as scissors or a cutter is used for the intermediate portion in the lower direction of the upper cover 20 (an example of a portion disposed opposite to the branch pipe connection port 1E in a state of being disposed in the collecting pipe 1). Three (one or more) that can reveal the insertion port 22 (an example of an insertion part) in which the branch pipe connection port part 1E can be arranged in a substantially insertion state (an example of an insertion state or a substantially insertion state). The cutting position finger 23 for forming the insertion portion in (example) is provided in a state of being aligned along the horizontal direction.

当該切断位置指示印２３には、表裏方向で貫通する切り込みからなるミシン目状の複数の切り取り線、具体的には、切断操作によって小径の枝管用の枝管接続口部１Ｅが略挿通状態で配置可能な外形寸法の挿通口２２（図５（ａ）を参照）を現出可能な環状（具体的には７角形の外縁線状）の第１切り取り線２４と、それよりも大径の枝管用の枝管接続口部１Ｅが略挿通状態で配置可能な外形寸法の挿通口２２（図５（ｂ）を参照）を現出可能な環状の第２切り取り線２５が形成されている。   In the cutting position instruction mark 23, a plurality of perforated cut lines made of cuts penetrating in the front and back directions, specifically, branch pipe connection ports 1E for small-diameter branch pipes are substantially inserted by cutting operation. An annular (specifically, a heptagonal outer edge line) first cut line 24 capable of revealing the insertion port 22 (see FIG. 5A) having an outer dimension that can be arranged, and a diameter larger than that. An annular second cut line 25 is formed through which an insertion port 22 (see FIG. 5B) having an outer dimension that can be arranged in a substantially inserted state of the branch pipe connection port portion 1E for the branch pipe.

また、前記切断位置指示印２３には、専用のアダプター７を介装する形態で枝管４の管径に対応するタイプの大型の枝管接続口部１Ｅに対応する最も大きな外形寸法の挿通口２２（図５（ｃ）を参照）を現出可能な環状の第３切り取り線２６が形成されている。   Further, the cutting position indicating mark 23 has an insertion port of the largest external dimension corresponding to the large branch pipe connection port portion 1E of the type corresponding to the pipe diameter of the branch pipe 4 in a form in which the dedicated adapter 7 is interposed. An annular third cut line 26 capable of appearing 22 (see FIG. 5C) is formed.

つまり、第１〜第３切り取り線２４〜２６は、外形寸法の異なる複数種の環状又は略環状の切断位置指示線を構成する。   That is, the first to third cut lines 24 to 26 constitute plural kinds of annular or substantially annular cutting position indicating lines having different outer dimensions.

図２（ｂ）に示すように、前記第１切り取り線２４は、正面視Ｖ字状をなすように上部カバー２０の下側辺部２０ａ（外側辺部の一例）の同一点（基点）２０ｐで連なる状態に配置された一対の下側線部２４ａと、該下側線部２４ａの上端から上方に延びる一対の横側線部２４ｂと、該横側線部２４ｂの上端どうしを接続する正面視台形線状の上側線部２４ｃとから構成されている。   As shown in FIG. 2 (b), the first cut line 24 has the same point (base point) 20p of the lower side portion 20a (an example of the outer side portion) of the upper cover 20 so as to form a V shape in front view. A pair of lower line portions 24a arranged in a continuous manner, a pair of lateral line portions 24b extending upward from the upper end of the lower line portion 24a, and a trapezoidal line shape in front view connecting the upper ends of the lateral line portions 24b The upper side line portion 24c.

前記第２切り取り線２５は、正面視Ｖ字状をなすように上部カバー２０の前記基点２０ｐで連なる状態に配置された一対の下側線部２５ａと、該下側線部２５ａの上端から上方に延びる一対の横側線部２５ｂと、該横側線部２５ｂの上端どうしを接続する正面視台形線状の上側線部２５ｃとから前記第１切り取り線２４を囲う形態に構成されている。   The second cut line 25 extends upward from the upper end of the pair of lower line portions 25a and a pair of lower line portions 25a arranged in a state of being connected at the base point 20p of the upper cover 20 so as to form a V shape in a front view. The first cut line 24 is configured to be surrounded by a pair of lateral line portions 25b and a trapezoidal linear upper line portion 25c connecting the upper ends of the lateral line portions 25b.

前記第３切り取り線２６は、正面視Ｖ字状をなすように上部カバー２０の前記基点２０ｐで連なる状態に配置された一対の下側線部２６ａと、該下側線部２６ａの上端から上方に延びる一対の横側線部２６ｂと、該横側線部２６ｂの上端どうしを接続する正面視台形線状の上側線部２６ｃとから前記第２切り取り線２５を囲う形態に構成されている。なお、前記第３切り取り線２６の横側線部２６ｃは隣接する別の第３切り取り線２６の横側線部２６ｃに兼用されている。   The third cut line 26 extends upward from the upper end of the pair of lower line portions 26a and a pair of lower line portions 26a arranged in a state of being connected at the base point 20p of the upper cover 20 so as to form a V shape in a front view. The second cut line 25 is surrounded by a pair of horizontal line portions 26b and a trapezoidal line-shaped upper line portion 26c connecting the upper ends of the horizontal line portions 26b. The lateral line portion 26c of the third cutoff line 26 is also used as the lateral line portion 26c of another adjacent third cutoff line 26.

更に、前記第１切り取り線２４と第２切り取り線２５との間、並びに、第２切り取り線２５と第３切り取り線２６との間には、外形寸法の小さい側の切り取り線の切断操作とは異なる別の切断操作によって挿通部２２の内周縁を形成する状態で前記挿通部２２の側に突出する舌片２７ａ（図５（ｄ）を参照）を現出するための舌片形成用の切断位置支持印２７が設けられている。   Further, between the first cut line 24 and the second cut line 25 and between the second cut line 25 and the third cut line 26, what is the cutting operation of the cut line on the side having a smaller outer dimension? Cutting for tongue piece formation to reveal the tongue piece 27a (see FIG. 5 (d)) protruding toward the insertion portion 22 in a state where the inner peripheral edge of the insertion portion 22 is formed by another different cutting operation. A position support mark 27 is provided.

当該切断位置支持印２７は、表裏方向で貫通する切り込みからなるミシン目状の複数の切り取り線（切断位置指示線の一例）から構成されている。   The cutting position support mark 27 is composed of a plurality of perforated cut lines (an example of a cutting position indicating line) made of cuts penetrating in the front and back directions.

そして、前記両面テープ２１は、挿通部形成用の前記切断位置指示印２３の横方向の隣接箇所、具体的には、第２、第３切り取り線２５、２６の横側線部２５ｂ、２６ｂと下側線部２５ａ、２６ａの一部を含む箇所（各挿通口２２の中心点Ｃ（図５（ａ）〜（ｃ）を参照）よりも下側辺部２０ａの側の領域を含む箇所の一例）に設けられている。   The double-sided tape 21 is adjacent to the laterally adjacent portion of the cutting position indicating mark 23 for forming the insertion portion, specifically, the lateral side line portions 25b and 26b of the second and third cut lines 25 and 26, and the lower side. Location including a part of the side line portions 25a and 26a (an example of a location including a region on the side of the lower side portion 20a from the center point C of each insertion port 22 (see FIGS. 5A to 5C)) Is provided.

一方、前記上部カバー２０の上側辺部２０ｂには、集合管１への配設時において集合管１と主流入管２の接続部の上縁外角部に対向配置される部位まで至る集合管の縮径部分（場合によっては拡径部分）を被覆するための７つ（１つ又は複数個の一例）の切り欠き２８が横方向に沿って等間隔に分散する状態で設けられている。   On the other hand, the upper side portion 20b of the upper cover 20 is contracted to the collecting pipe extending to a portion opposed to the outer corner of the upper edge of the connecting portion of the collecting pipe 1 and the main inflow pipe 2 when the upper cover 20 is disposed. Seven (one or more examples) notches 28 for covering the diameter portion (in some cases, the diameter-increased portion) are provided in a state of being distributed at equal intervals along the lateral direction.

当該切り欠き２８は、被覆対象物の小径管部分を対向端面どうしが密着する状態で被覆可能な上方側の四角形状部２８ａと被覆対象物の縮径変化部分を対向端面どうしが密着する状態で被覆可能な下方尖りの三角形状部２８ｂとからなる略楔型状に形成されている。前記四角形状部２８ａと三角形状部２８ｂの寸法は、被覆対象物（つまり、主管接続部）の寸法に応じて設定されている。   The notch 28 is in a state in which the opposed end surfaces are in close contact with the upper quadrangular portion 28a that can be covered with the small-diameter pipe portion of the covering object in close contact with the opposing end surfaces. It is formed in a substantially wedge shape composed of a triangular portion 28b having a downward sharpening that can be covered. The dimensions of the rectangular part 28a and the triangular part 28b are set according to the dimension of the object to be covered (that is, the main pipe connecting part).

つまり、当該切り欠き２８は、図１、図４に示すように、前記集合管１の外周面から主流入管２の外周面にかけての径寸法の減少に伴いカバー面積が過剰になることに対してその過剰面積分を減少させるように構成されている。   That is, the notch 28 has an excessive cover area as the diameter dimension decreases from the outer peripheral surface of the collecting pipe 1 to the outer peripheral surface of the main inflow pipe 2 as shown in FIGS. The excessive area is reduced.

前記下部カバー３０は、図６〜図１２に示すように、グラスウールフェルト（（遮音材の一例、吸音性を有する素材の一例）からなる内層側の吸音層３０Ａと、無機質混入ゴムアスファルト（遮音材の一例、耐熱材の一例）からなる遮音層３０Ｂと、合成樹脂製の不織布からなる劣化防止用兼作業性向上用の保護層３０Ｄとをその順に積層したシート状物を横長矩形状に成形して構成されている。   As shown in FIGS. 6 to 12, the lower cover 30 includes an inner sound absorbing layer 30 </ b> A made of glass wool felt ((an example of a sound insulating material, an example of a sound absorbing material), and an inorganic mixed rubber asphalt (a sound insulating material). A sheet-like material in which a sound insulation layer 30B made of a heat resistant material) and a protective layer 30D for preventing deterioration and improving workability made of a synthetic resin nonwoven fabric are laminated in that order into a horizontally long rectangular shape. Configured.

また、前記吸音層３０Ａの表面（つまり、下部カバー３０の裏面（内面））には、集合管１に固定するための両面テープ３１ａ、３１ｂ（接着面部の一例、固定手段の一例）が備えられている。   Further, double-sided tapes 31a and 31b (an example of an adhesive surface part and an example of a fixing means) for fixing to the collecting pipe 1 are provided on the surface of the sound absorbing layer 30A (that is, the back surface (inner surface) of the lower cover 30). ing.

当該下部カバー３０の横寸法（幅寸法）Ｗ３は、前記集合管１の管周壁部１Ｄの外周長に対応する寸法で構成されている。また、下部カバー３０の縦寸法（高さ寸法）Ｈ３は、集合管１に配設したとき、床スラブＳの下面から集合管１と主流出管３との接続部を越えて主流出管３の外周面まで到達可能な寸法で構成されている。   The horizontal dimension (width dimension) W3 of the lower cover 30 is configured to have a dimension corresponding to the outer peripheral length of the pipe peripheral wall portion 1D of the collecting pipe 1. Further, the vertical dimension (height dimension) H3 of the lower cover 30 is set so as to extend from the lower surface of the floor slab S beyond the connecting portion between the collecting pipe 1 and the main outflow pipe 3 when arranged in the collecting pipe 1. It is comprised by the dimension which can reach | attain to the outer peripheral surface.

また、前記下部カバー３０の下側辺部３０ａには、前述した上部カバー２０の切り欠き２８と同じ構成の切り欠き３２が横方向に沿って等間隔に分散する状態で設けられている。   The lower side 30a of the lower cover 30 is provided with notches 32 having the same configuration as the notches 28 of the above-described upper cover 20 in a state of being distributed at equal intervals along the horizontal direction.

一方、前記下部カバー３０の上側辺部３０ｂ（上方用の外側辺部の一例）には、切断操作によって集合管１の縮径部分又は拡径部分を上方窄まり姿勢又は上方拡がり姿勢で被覆するための切り欠き３３を現出する切り欠き形成用の７つ（１つ又は複数個の一例）の切断位置指示印３４が横方向に沿って等間隔に分散する状態で形成されている。   On the other hand, on the upper side portion 30b of the lower cover 30 (an example of the outer side portion for the upper side), the reduced diameter portion or the enlarged diameter portion of the collecting pipe 1 is covered in an upwardly constricted posture or an upwardly expanded posture by a cutting operation. 7 (one or a plurality of examples) of cutting position indication marks 34 for displaying the notches 33 for forming the notches 33 are formed in a state of being distributed at equal intervals along the horizontal direction.

前記切断位置指示印３４は、下部カバー３０の表裏方向に貫通する切り込みからなるミシン目状の切り取り線から構成されている。前記切り取り線のうち、下部カバー３０の上側辺部３０ｂから縦方向に平行に延びる一対の横側線部３４ａは、約７ｍｍスパンのミシン目から構成されているとともに、前記切り取り線のうち、該横側線部３４ａに連なる略Ｖの字状の下側線部３４ｂは、横方向中央部を除く全範囲で貫通する一対の切り込みから形成されている。   The cutting position instruction mark 34 is constituted by a perforated cut line formed by a cut that penetrates the lower cover 30 in the front and back direction. Among the cut lines, a pair of horizontal side line parts 34a extending in parallel in the vertical direction from the upper side part 30b of the lower cover 30 are configured by perforations having a span of about 7 mm. The substantially V-shaped lower side line part 34b connected to the side line part 34a is formed by a pair of cuts penetrating in the entire range except for the central part in the lateral direction.

前記両面テープ３１ａは、下部カバー３０の上側辺部３０ｂを含む横長の帯状領域、具体的には、上側辺部３０ｂの端縁から前記切り欠き３３の先端（具体的には、切断位置指示印３４の先端）よりも中央側に至る領域に設けられている。また、前記両面テープ３１ｂは、下部カバー３０の横側辺部３０ｄの左右の一方（巻き付け姿勢で径方向外側に位置する一方）を含む縦長の帯状領域にも設けられている。なお、前記両面テープ３１a、３１ｂの接着面の各々には、着脱操作が可能な剥離紙（図示しない）が全面を覆う状態で設けられている。   The double-sided tape 31a is a horizontally long belt-like region including the upper side portion 30b of the lower cover 30, specifically, from the edge of the upper side portion 30b to the tip of the notch 33 (specifically, a cutting position indicating mark). 34 is provided in a region extending to the center side from the tip of 34. The double-sided tape 31b is also provided in a vertically long belt-like region including one of the left and right sides 30d of the lower cover 30 (one positioned radially outward in the winding position). Each of the adhesive surfaces of the double-sided tapes 31a and 31b is provided with a release paper (not shown) that can be attached and detached so as to cover the entire surface.

前記枝管接続部用カバー４０は、図１３、図１４に示すように、グラスウールフェルト（遮音材の一例、吸音性を有する素材の一例）からなる内層側の吸音層４０Ａ（遮音性を有する基材の一例）と合成樹脂製の袋状（詳しくは、横方向両端面４０ａ開口した袋状）の不織布からなる薄い環状の保護層４０Ｄ（袋体の一例、拘束手段の一例）との間に板金製の姿勢保持枠体４１（姿勢変更操作に伴い塑性変形することによって姿勢変更操作後の姿勢又はそれに近い姿勢に保持する姿勢保持手段の一例）を挿設した横長矩形状のマット状物から構成されている。   As shown in FIGS. 13 and 14, the branch pipe connecting portion cover 40 includes a sound absorbing layer 40 </ b> A (a sound insulating base) on the inner layer side made of glass wool felt (an example of a sound insulating material, an example of a material having a sound absorbing property). An example of a material) and a thin annular protective layer 40D (an example of a bag body, an example of a restraining means) made of a synthetic resin bag-like nonwoven fabric (specifically, a bag-like shape having openings at both lateral end faces 40a). From a horizontally long rectangular mat-like material in which a posture holding frame 41 made of sheet metal (an example of posture holding means for holding the posture after the posture changing operation or a posture close thereto by plastic deformation by the posture changing operation) is inserted. It is configured.

当該枝管接続部用カバー４０は、吸音層４０Ａと姿勢保持枠体４１は、吸音層４０Ａを少し圧縮させた状態で袋状の保護層４０Ｄの内部に挿入することによって構成されている。   The branch pipe connecting portion cover 40 is configured by inserting the sound absorbing layer 40A and the posture maintaining frame body 41 into the bag-like protective layer 40D with the sound absorbing layer 40A being slightly compressed.

前記枝管接続部用カバー４０の横寸法（幅寸法）Ｗ４は、前記集合管１の枝管接続口部１Ｅの外周長に対応する寸法で構成されている。また、枝管接続部用カバー４０の縦寸法（奥行き寸法）Ｈ４は、集合管１の管周壁部１Ｄから枝管接続口部１Ｅと枝管４との接続部を超えて枝管４の外周面まで到達可能な寸法で構成されている。   The lateral dimension (width dimension) W4 of the branch pipe connection part cover 40 is configured to have a dimension corresponding to the outer peripheral length of the branch pipe connection port part 1E of the collecting pipe 1. The vertical dimension (depth dimension) H4 of the branch pipe connecting portion cover 40 is such that the outer circumference of the branch pipe 4 extends from the pipe peripheral wall portion 1D of the collecting pipe 1 to the branch pipe connecting port portion 1E and the branch pipe 4 connecting portion. It is configured with dimensions that can reach the surface.

前記形状保持枠４１は、前記吸音層４０Ａの横寸法に対応する長さ寸法の一対の第１帯状板部４２と、吸音層４０Ａの縦寸法に対応する長さ寸法の一対の第２帯状板部４３とを吸音層４０Ａの外形寸法と同じ又は略同じ外形寸法となる状態に組み付けるとともに、両第１帯状板部４２どうしの横方向中間部に第２帯状板部４２と同じ構成の第３帯状板部４４を亘らせる状態に組み付けて構成されている。なお、各帯状板部４３の組み付け加工には、共カシメ加工が採用されている。   The shape retaining frame 41 includes a pair of first belt-like plate portions 42 having a length corresponding to the horizontal dimension of the sound absorbing layer 40A and a pair of second belt-like plates having a length corresponding to the vertical dimension of the sound absorbing layer 40A. The third portion 43 is assembled in a state having the same or substantially the same outer dimension as that of the sound absorbing layer 40 </ b> A, and a third configuration having the same configuration as that of the second belt-shaped plate portion 42 at the lateral intermediate portion between the first belt-shaped plate portions 42. The belt plate 44 is assembled in a state where the belt-like plate portion 44 is extended. Note that co-caulking is adopted for the assembling process of each strip-shaped plate portion 43.

次に、排水合流部の遮音構造の施工方法を説明する。当該施工方法は、下記の（ａ）〜（ｃ）の工程からなる。なお、本例では、配管用遮音カバー５で被覆済みの主流入管２と枝管４が接続された状態の集合管１に対して集合管用遮音カバー６を配設する場合を説明する。   Next, the construction method of the sound insulation structure of the drainage junction will be described. The construction method includes the following steps (a) to (c). In this example, a case will be described in which the collection pipe sound insulation cover 6 is disposed on the collection pipe 1 in a state where the main inflow pipe 2 and the branch pipe 4 that have been covered with the pipe insulation cover 5 are connected.

（ａ）上部カバー２０の配設工程
前記上部カバー２０の挿通部形成用の切断位置指示印２３における第１〜第３切り取り線２４〜２６のうち、枝管接続口部１Ｅの種別に応じて選択した切り取り線（例えば、第１切り取り線２４）を切断操作することによって、上部カバー２０に枝管接続部用の挿通口２２を形成する。 (A) Arrangement process of the upper cover 20 Of the first to third cut lines 24 to 26 in the cutting position instruction mark 23 for forming the insertion portion of the upper cover 20, according to the type of the branch pipe connection opening 1E. By cutting the selected cut line (for example, the first cut line 24), the insertion opening 22 for the branch pipe connecting portion is formed in the upper cover 20.

次に、集合管１の枝管接続口部１Ｅに対し、上部カバー２０の挿通口２２の内縁部の下方側を形成する両回り込み片２９を開き操作しながら、その挿通口２２の両回り込み片２９どうしの間（進入部の一例）から集合管１の枝管接続口部１Ｅを挿通口２２内に入り込ませる状態で上部カバー２０を集合管１の管周壁部１Ｄの側に近接移動させる（図３を参照）。   Next, the both wrapping pieces of the insertion port 22 are opened with respect to the branch pipe connection port portion 1E of the collecting pipe 1 while opening the both wrapping pieces 29 forming the lower side of the inner edge portion of the insertion port 22 of the upper cover 20. The upper cover 20 is moved close to the pipe peripheral wall 1D side of the collecting pipe 1 in a state in which the branch pipe connecting port 1E of the collecting pipe 1 enters the insertion opening 22 from between 29 (an example of the entry part) ( (See FIG. 3).

その後、両回り込み片２９を枝管接続口部１Ｅの下方に位置する状態に移動操作し、その状態で、上部カバー２０における両面テープ２１が配設された部分を押さえ付けることによって上部カバー２０で枝管接続口部１Ｅの回りに固定するとともに、上部カバー２０で集合管１の管周壁部１Ｄの外周囲を覆うように枝管接続口部１Ｅの上部カバー２０の横方向両端部（つまり、左辺部と右辺部）を突き合わせ、その状態で、インシュロック等の拘束手段８（固定手段の一例）を用いて上部カバー２０の上方部分を囲い込み拘束する（図４を参照）。   Thereafter, the both wraparound pieces 29 are moved to a position located below the branch pipe connection port portion 1E, and in this state, the upper cover 20 is pressed by the portion where the double-sided tape 21 is disposed. While fixing around the branch pipe connection port 1E, both ends in the lateral direction of the upper cover 20 of the branch pipe connection port 1E (ie, covering the outer periphery of the pipe peripheral wall 1D of the collecting pipe 1 with the upper cover 20 (that is, The left side portion and the right side portion are abutted, and in that state, the upper portion of the upper cover 20 is enclosed and restrained using restraint means 8 (an example of a fixing means) such as an insulation lock (see FIG. 4).

なお、このとき、拘束手段８で上部カバー２０の上下中間部分を囲い込み拘束した状態で拘束手段８を上方側に移動させるようにすれば、縮径部分を効率良く固定することができる。   At this time, if the restraining means 8 is moved upward while the restraining means 8 encloses and restrains the upper and lower intermediate portions of the upper cover 20, the reduced diameter portion can be efficiently fixed.

そして、上部カバー２０の横方向両端部の合わせ目部分（図示しない）に対して上部カバー２０の両端部に跨る状態で接着テープ９を貼着するとともに、上部カバー２０の上側辺部２０ｂに対して上部カバー２０の上側辺部２０ｂと主流入管２の外周面とに跨る状態で接着テープ９を貼着し、これにより、上部カバー２０の配設工程を完了する（図１を参照）。   And while adhering the adhesive tape 9 in the state which straddles the both ends of the upper cover 20 with respect to the joint part (not shown) of the horizontal direction both ends of the upper cover 20, with respect to the upper side part 20b of the upper cover 20 Then, the adhesive tape 9 is stuck in a state straddling the upper side portion 20b of the upper cover 20 and the outer peripheral surface of the main inflow pipe 2, thereby completing the step of arranging the upper cover 20 (see FIG. 1).

（ｂ）枝管接続部用カバーの配設工程
上部カバー２０の配設工程の完了後、枝管接続部用カバー４０をある程度湾曲変形させる（図１４を参照）。そして、枝管接続口部１Ｅの外周面及び枝管接続口部１Ｅと枝管４との接続部並びに枝管４の外周面を被覆するように、それらの部位に当て付ける形態で枝管接続部用カバー４０を更に湾曲変形させ、前記姿勢保持枠体４１の姿勢保持力によって枝管接続部用カバー４０を湾曲変形状態で枝管接続口部１Ｅに仮固定する。 (B) Branch pipe connection portion cover placement step After the upper cover 20 placement step is completed, the branch pipe connection portion cover 40 is curved and deformed to some extent (see FIG. 14). Then, the branch pipe connection is made in such a manner that the outer peripheral surface of the branch pipe connection port portion 1E, the connection portion between the branch pipe connection port portion 1E and the branch pipe 4, and the outer peripheral surface of the branch pipe 4 are applied to those portions. The portion cover 40 is further bent and deformed, and the branch pipe connection portion cover 40 is temporarily fixed to the branch pipe connection port portion 1E in a bent deformation state by the posture holding force of the posture holding frame body 41.

次に、インシュロック等の拘束手段８（固定手段の一例）で枝管接続部用カバー４０を囲い込み拘束することにより、枝管接続部用カバー４０を枝管接続口部１Ｅに固定し、これにより、枝管接続部用カバー４０の配設工程を完了する（図１を参照）。   Next, the branch pipe connection part cover 40 is fixed to the branch pipe connection port 1E by enclosing and restraining the branch pipe connection part cover 40 with restraint means 8 (an example of a fixing means) such as an insulok. Then, the disposing step of the branch pipe connecting portion cover 40 is completed (see FIG. 1).

なお、枝管接続部用カバー４０は、吸音層４０Ａと姿勢保持枠体４１のうちの姿勢保持枠体４１が径方向外方側に位置する向きで枝管接続口部１Ｅに固定するのが好ましい。   The branch pipe connecting portion cover 40 is fixed to the branch pipe connecting port 1E in such a direction that the posture holding frame body 41 of the sound absorbing layer 40A and the posture holding frame body 41 is located on the radially outer side. preferable.

（ｃ）下部カバーの配設工程
集合管１の床スラブＳの下方に位置する部分の上方側に一段縮径した縮径部分が存在する場合には、まず、前記下部カバー３０の切り欠き形成部３４の切り取り線を切り取り操作することによって、下部カバー３０の上側辺部３０ｂに前記段差に対応するための切り欠き３３を形成する（図７を参照）。 (C) Arrangement process of lower cover When the diameter-reduced portion reduced by one step is present on the upper side of the portion located below the floor slab S of the collecting pipe 1, first, the notch formation of the lower cover 30 is formed. A notch 33 is formed in the upper side portion 30b of the lower cover 30 so as to correspond to the step by cutting the cut line of the portion 34 (see FIG. 7).

次に、下部カバー３０の上部の裏面に備えられた両面テープ３１ａから剥離紙を取り外し、下部カバー３０の上側辺部３０ｂが床スラブＳの下面に接触する配置において下部カバー３０の上部を集合管１の縮径部分に密着させる状態で押さえ付けることによって、前記両面テープ３１ａの接着力でもって下部カバー３０の上部を集合管１に仮固定（前記縮径部分を被覆する姿勢で仮固定）する（図８を参照）。   Next, the release paper is removed from the double-sided tape 31a provided on the back surface of the upper part of the lower cover 30, and the upper part of the lower cover 30 is connected to the collecting pipe in an arrangement in which the upper side part 30b of the lower cover 30 contacts the lower surface of the floor slab S. The upper part of the lower cover 30 is temporarily fixed to the collecting tube 1 with the adhesive force of the double-sided tape 31a by pressing in a state of being in close contact with the reduced diameter part 1 (temporarily fixed in a posture to cover the reduced diameter part). (See FIG. 8).

その後、下部カバー３０の他端部の裏面に備えられた両面テープ３１ｂから剥離紙を取り外し、下部カバー３０で集合管１の床スラブＳの下方に位置する管周壁部１Ｄの外周囲を覆うように下部カバー３０の左右一端部の上面（外面）に下部カバー３０の他端部を重合させ、その状態で、下部カバー３０の他端部を押さえ付けることにより、下部カバー３０の他端部の裏面に備えられた両面テープ３１ｂの接着力で下部カバー３０を集合管１に固定する（図９を参照）。   Thereafter, the release paper is removed from the double-sided tape 31b provided on the back surface of the other end of the lower cover 30, and the lower cover 30 covers the outer periphery of the pipe peripheral wall 1D located below the floor slab S of the collecting pipe 1. The other end portion of the lower cover 30 is superposed on the upper surface (outer surface) of the left and right end portions of the lower cover 30, and in this state, the other end portion of the lower cover 30 is pressed, The lower cover 30 is fixed to the collecting pipe 1 by the adhesive force of the double-sided tape 31b provided on the back surface (see FIG. 9).

そして、インシュロック等の拘束手段８（固定手段の一例）で下部カバー３０の上方部分及び下方部分の各々を囲い込み拘束するとともに、下部カバー３０の下側辺部３０ａに対して下部カバー３０の下側辺部３０ａと主流出管３の外周面とに跨る状態で接着テープ９を貼着し、これにより、下部カバー３０の配設工程を完了する（図１を参照）。   The restraining means 8 (an example of a fixing means) such as an insulation lock surrounds and restrains each of the upper and lower portions of the lower cover 30 and lowers the lower side 30 a of the lower cover 30. Adhesive tape 9 is stuck in a state straddling the side portion 30a and the outer peripheral surface of the main outflow pipe 3, thereby completing the disposing step of the lower cover 30 (see FIG. 1).

なお、集合管１の床スラブＳの下方に位置する部分の上方側に縮径部分や拡径部分が存在しない場合の配設方法については、下部カバー３０の切り欠き形成部３４の切り取り操作を行わない点を除き、前記縮径部分が存在する場合と同様（つまり、図１０、図１１の手順を経て完了する）であるから、その説明は省略する。また、集合管１の床スラブＳの下方に位置する部分の上方側に拡径部分が存在する場合（図１２を参照）の配設方法は、前述した縮径部分が存在する場合と同様であるから、その説明は省略する。   In addition, about the arrangement | positioning method when the diameter reduction part and diameter expansion part do not exist above the part located under the floor slab S of the collecting pipe 1, the cutting operation of the notch formation part 34 of the lower cover 30 is carried out. Except for the point that it is not performed, it is the same as the case where the reduced diameter portion exists (that is, it is completed through the procedures of FIGS. 10 and 11), and therefore, the description thereof is omitted. Moreover, the arrangement method when the diameter-expanded portion is present above the portion located below the floor slab S of the collecting pipe 1 (see FIG. 12) is the same as the case where the aforementioned reduced-diameter portion is present. Therefore, the description is omitted.

［その他の実施形態］
（１）前述の実施形態では、各切断位置指示印２３、２７が、切断位置に沿って延びる線（切断位置指示線）から構成されている場合を例に示したが、例えば、切断位置の折れ点のみに付された点等から構成されていてもよい。 [Other Embodiments]
(1) In the above-described embodiment, the case where each of the cutting position indication marks 23 and 27 is configured by a line (cutting position indication line) extending along the cutting position has been described as an example. You may be comprised from the point etc. which were attached | subjected only to the broken point.

（２）前述の実施形態では、各切断位置指示線２４〜２７が、表裏方向で貫通する切り込みから構成されている場合を例に示したが、表裏方向の反対面まで至らない溝から構成されていてもよく、或いは、表面や裏面に付されたインク等から構成されていてもよい。 (2) In the above-described embodiment, the case where each of the cutting position indicating lines 24 to 27 is configured by a notch penetrating in the front and back direction is illustrated as an example, but the cutting position indicating lines 24 to 27 are configured by a groove that does not reach the opposite surface in the front and back direction. Or may be composed of ink or the like applied to the front or back surface.

（３）前記切断操作は、専用の切断手段（はさみやカッター等）で切断する操作に限らず、集合管１の枝管挿通口部１Ｅ等に当て付けた状態での押し込みにより引き裂く操作等であってもよい。 (3) The cutting operation is not limited to the operation of cutting with a dedicated cutting means (such as scissors or a cutter), but is an operation of tearing by pushing in the state where it is applied to the branch pipe insertion port 1E of the collecting pipe 1 There may be.

（４）前述の実施形態では、挿通部形成用の切断位置指示線２４〜２６どうしの間に、当該切断位置指示線の切断操作とは異なる別の切断操作によって舌片２７ｃを現出するための舌片用の切断位置指示印２７が設けられている場合を例に示したが、複数の前記切断位置指示線２４〜２６どうしの間に、外形寸法の小さい側の切断位置指示線の切断操作によって前記舌片を現出する切り込み（例えば、径方向で隣接する切断位置指示線どうしを接続する長さの切り込み）が形成されていてもよい。 (4) In the above-described embodiment, the tongue piece 27c appears between the cutting position instruction lines 24 to 26 for forming the insertion portion by another cutting operation different from the cutting operation of the cutting position instruction line. The cutting position indicating mark 27 for the tongue piece is provided as an example, but the cutting position indicating line on the side having the smaller outer dimension is cut between the plurality of cutting position indicating lines 24-26. An incision (for example, an incision having a length for connecting the cutting position indicating lines adjacent in the radial direction) may be formed so that the tongue piece appears by operation.

（５）前述の実施形態では、上部カバー２０の挿通部形成用の切断位置指示印２３が、第１〜第３切り取り線２４〜２６から構成されている場合を例に示したが、例えば、配設対象の集合管１の径寸法が大きい場合等の事情に応じ、図１５に示すように、第２切り取り線２５と第３切り取り線２６との間に第４切り取り線１０を設けたりしてもよい。なお、同図において、１０ａは第４切り取り線の下側線部を示し、１０ｂは第４切り取り線１０の横側線部を示し、１０ｃは第４切り取り線１０の上側線部を示す。 (5) In the above-described embodiment, the cutting position instruction mark 23 for forming the insertion portion of the upper cover 20 is illustrated as an example of the case where the cutting position instruction mark 23 is configured by the first to third cut lines 24 to 26. Depending on the circumstances such as the case where the diameter of the collecting pipe 1 to be arranged is large, the fourth cut line 10 may be provided between the second cut line 25 and the third cut line 26 as shown in FIG. May be. In the figure, 10a represents the lower line portion of the fourth cut line, 10b represents the horizontal line portion of the fourth cut line 10, and 10c represents the upper line portion of the fourth cut line 10.

（６）前述の実施形態では、前記接着面部が、両面テープ２１、３１ａ、３１ｂから構成されている場合を例に示したが、接着剤等から構成されていてもよい。 (6) In the above-described embodiment, the case where the adhesive surface portion is configured by the double-sided tapes 21, 31a, and 31b has been described as an example. However, the adhesive surface portion may be configured by an adhesive or the like.

（７）前述の実施形態では、上部カバー２０に現出される挿通部２２として、前記枝管接続口部１Ｅや枝管４が外側辺部から進入するのを許容するように、一部が外側辺部に接続されている挿通部２２（略挿通状態で配置可能な挿通部の一例）を例に示したが、一部が外側辺部に接続されない穴状の挿通部２２（挿通状態で配置可能な挿通部の一例）であってもよい。 (7) In the above-described embodiment, a part of the insertion portion 22 that appears on the upper cover 20 is allowed to allow the branch pipe connection port 1E and the branch pipe 4 to enter from the outer side. Although the insertion part 22 (an example of an insertion part that can be arranged in a substantially inserted state) connected to the outer side part is shown as an example, a hole-like insertion part 22 that is not partially connected to the outer side part (in the inserted state) It may be an example of an insertable insertion portion.

（８）集合管用遮音シート６の構成は、前述の実施形態で示した遮音性を有する層を含む複層構造に限らず、遮音性を備える素材からなる単層構造などであってもよい。 (8) The structure of the sound insulating sheet 6 for collecting pipes is not limited to the multilayer structure including the layer having the sound insulating property shown in the above-described embodiment, and may be a single layer structure made of a material having the sound insulating property.

（９）前述の実施形態では、枝管接続部用カバー４０の姿勢保持手段が、帯状板部４２〜４４からなる姿勢保持枠体４１から構成されている場合を例に示したが、例えば、帯状板部４２や帯状板部４３のみからなる帯状の姿勢保持部材から構成されていてもよく、或いは、カバー外形に近い金網や金属板等から構成されていてもよい。 (9) In the above-described embodiment, the case where the posture holding means of the branch pipe connecting portion cover 40 is configured by the posture holding frame body 41 including the belt-like plate portions 42 to 44 is described as an example. It may be composed of a belt-like posture holding member consisting only of the belt-shaped plate portion 42 or the belt-shaped plate portion 43, or may be composed of a wire net or a metal plate close to the outer shape of the cover.

（１０）枝管接続部用カバー４０は、前述の実施形態で示した集合管１に限らず、個別の排水管や給水湯管やガス管等の種々の流体管の遮音構造に適用できる。 (10) The branch pipe connection portion cover 40 is not limited to the collecting pipe 1 shown in the above-described embodiment, but can be applied to a sound insulation structure of various fluid pipes such as individual drain pipes, hot water pipes, gas pipes and the like.

１ 集合管
１Ｄ 管周壁部
１Ｅ 枝管接続口部
２０ 上部カバー（集合管用遮音カバー）
２２ 挿通口（挿通部）
２３ 挿通部形成用の切断位置指示印
２４ 第１切り取り線（切断位置指示線）
２５ 第２切り取り線（切断位置指示線）
２６ 第３切り取り線（切断位置指示線）
２７ 舌片形成用の切断位置指示印
２１ 両面テープ（接着面部）
Ｃ 中心点 1 Collecting pipe 1D Pipe peripheral wall part 1E Branch pipe connection port part 20 Upper cover (sound insulation cover for collecting pipe)
22 Insertion port (insertion part)
23 Cutting position indication mark 24 for forming the insertion portion First cut line (cutting position indication line)
25 Second cut line (cut position indication line)
26 Third cut line (cutting position indicating line)
27 Cutting position indication mark for tongue piece formation 21 Double-sided tape (adhesive surface)
C center point

Claims (4)

管周壁部に枝管接続口部を備えた集合管に対して管周壁部を被覆する状態で配設される可撓性の集合管用遮音カバーであって、
前記枝管接続口部に対向配置される部位には、枝管接続口部又はこれに接続される枝管が挿通状態又は略挿通状態で配置可能な挿通部を切断操作によって現出するための挿通部形成用の切断位置指示印が設けられており、
前記切断位置指示印が、外形寸法の異なる複数種の前記挿通部を切断操作によって現出可能な形態に構成されているとともに、
外形寸法の異なる複数種の環状又は略環状の切断位置指示線から構成されており、
複数の前記切断位置指示線が、外形寸法の最も大きい前記切断位置指示線の同一箇所又は略同一箇所に接続する片寄せ状態で設けられている集合管用遮音カバー。 A flexible sound insulation cover for a collective pipe disposed in a state of covering the pipe peripheral wall with respect to a collective pipe provided with a branch pipe connection port on the pipe peripheral wall,
In the portion arranged opposite to the branch pipe connection port portion, the branch pipe connection port portion or the insertion portion where the branch pipe connected to the branch pipe connection port portion can be arranged in an inserted state or a substantially inserted state is revealed by a cutting operation. A cutting position indication mark for forming the insertion portion is provided ,
The cutting position indication mark is configured in a form capable of appearing by a cutting operation of a plurality of types of the insertion portions having different external dimensions,
It consists of multiple types of annular or substantially annular cutting position indicating lines with different external dimensions,
A sound insulation cover for a collecting pipe , wherein the plurality of cutting position indicating lines are provided in a shifted state where the cutting position indicating lines are connected to the same position or substantially the same position of the cutting position indicating line having the largest external dimension . 管周壁部に枝管接続口部を備えた集合管に対して管周壁部を被覆する状態で配設される可撓性の集合管用遮音カバーであって、
前記枝管接続口部に対向配置される部位には、枝管接続口部又はこれに接続される枝管が挿通状態又は略挿通状態で配置可能な挿通部を切断操作によって現出するための挿通部形成用の切断位置指示印が設けられており、
前記切断位置指示印が、外形寸法の異なる複数種の前記挿通部を切断操作によって現出可能な形態に構成されているとともに、
外形寸法の異なる複数種の環状又は略環状の切断位置指示線から構成されており、
複数の前記切断位置指示線が、表面視で外側辺部の同一箇所又は略同一箇所に接続する片寄せ状態で設けられている集合管用遮音カバー。 A flexible sound insulation cover for a collective pipe disposed in a state of covering the pipe peripheral wall with respect to a collective pipe provided with a branch pipe connection port on the pipe peripheral wall,
In the portion arranged opposite to the branch pipe connection port portion, the branch pipe connection port portion or the insertion portion where the branch pipe connected to the branch pipe connection port portion can be arranged in an inserted state or a substantially inserted state is revealed by a cutting operation. A cutting position indication mark for forming the insertion portion is provided,
The cutting position indication mark is configured in a form capable of appearing by a cutting operation of a plurality of types of the insertion portions having different external dimensions ,
It consists of multiple types of annular or substantially annular cutting position indicating lines with different external dimensions,
A sound insulation cover for a collecting pipe , wherein the plurality of cutting position indicating lines are provided in a side-by-side connection state connected to the same place or substantially the same place on the outer side in a surface view . 複数の前記切断位置指示線どうしの間には、外形寸法の小さい側の切断位置指示線の切断操作によって、その切断操作で現出される挿通部の内周縁を形成する状態で前記挿通部の側に突出する舌片を現出する切り込み、又は、前記切断位置指示線の切断操作とは異なる別の切断操作によって前記舌片を現出するための舌片形成用の切断位置指示印が設けられている請求項１又は２記載の集合管用遮音カバー。 Between the plurality of cutting position indicating lines, by cutting the cutting position indicating line on the side having a smaller outer dimension, the inner peripheral edge of the inserting part that appears in the cutting operation is formed in the state of the inserting part. A cutting position indication mark for forming a tongue piece is provided for making the tongue piece appear by a cutting operation that reveals a tongue piece protruding to the side or a cutting operation different from the cutting operation of the cutting position indication line The sound insulation cover for collecting pipes according to claim 1 or 2 . 前記切断操作によって前記挿通部が現出される部位の隣接箇所の裏面には、前記集合管に対する固定用の接着面部が設けられているとともに、
前記接着面部が、前記切断操作によって前記挿通部が現出される部位の中心点よりも前記外側片部の側の領域に設けられている請求項１又は２記載の集合管用遮音カバー。 On the back surface of the portion adjacent to the portion where the insertion portion appears by the cutting operation, an adhesive surface portion for fixing to the collecting pipe is provided,
The sound insulation cover for collecting pipes of Claim 1 or 2 with which the said adhesive surface part is provided in the area | region of the said outside piece part side rather than the center point of the site | part where the said insertion part appears by the said cutting operation .
JP2009088209A 2009-03-31 2009-03-31 Sound insulation cover for collecting pipe Expired - Fee Related JP5459830B2 (en)

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