JP2022082622A - Joint, drainage system and building - Google Patents

Joint, drainage system and building Download PDF

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JP2022082622A
JP2022082622A JP2022046552A JP2022046552A JP2022082622A JP 2022082622 A JP2022082622 A JP 2022082622A JP 2022046552 A JP2022046552 A JP 2022046552A JP 2022046552 A JP2022046552 A JP 2022046552A JP 2022082622 A JP2022082622 A JP 2022082622A
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floor slab
joint
thermal expansion
expansion material
pipe
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JP7223189B2 (en
JP2022082622A5 (en
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英治 木村
Eiji Kimura
総 齋藤
Satoshi Saito
斉太 渕上
Saita Fuchigami
武司 徳丸
Takeshi Tokumaru
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Sekisui Chemical Co Ltd
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Sekisui Chemical Co Ltd
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Priority claimed from JP2021186470A external-priority patent/JP7048812B2/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure

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Abstract

PROBLEM TO BE SOLVED: To provide a joint capable of blocking smoke and flame generated below.
SOLUTION: A resin collective joint 1 which is configured to be insertable into a floor slab S and includes a plurality of branch pipes 3 comprises a resin upper member 12 protruding above the floor slab S with the collective joint 1 being inserted into the floor slab S, a plastic lower member 14 that is externally fitted and connected to the lower end of the upper member 12 and whose upper part is located inside the floor slab S and whose upper end protrudes from the top surface of the floor slab S and whose lower part protrudes below the floor slab S with the collective joint 1 being inserted into the floor slab S, a blade member 18 that is inclined with respect to the axis of the lower member 14, and a thermal expansion material 30 provided on the peripheral wall of the lower member 14. With the collective joint 1 being inserted into the floor slab S, the top end of the thermal expansion material 30 protrudes from the top surface of the floor slab S, and the thermal expansion material 30 is positioned to be buried within the floor slab S, and the bottom end of the thermal expansion material 30 is positioned lower than the top of the blade member 18.
SELECTED DRAWING: Figure 3
COPYRIGHT: (C)2022,JPO&INPIT

Description

本発明は、継手、排水システム及び建築物に関する。 The present invention relates to fittings, drainage systems and buildings.

近年、集合住宅等の多層建築物では、各階の衛生機器等から排出される排水は、各階の衛生機器等から横枝管を介してパイプシャフト内に設けられた排水立管路に集められ、曲管路や横管路を介して下水路に排水されるようになっている。このように各階の衛生機器等から排出される排水を下水道に排水するための排水システム（以下、単に排水システムという）では、排水立管路を構成する立管と横枝管とを接続するために、上端部及び下端部のそれぞれに立管を接続可能な本管と、該本管の側面に連結され、横枝管を接続可能な分岐管とを有する集合継手（継手）が用いられている。 In recent years, in multi-story buildings such as apartment houses, drainage discharged from sanitary equipment on each floor is collected from sanitary equipment on each floor in a drainage vertical pipeline provided in a pipe shaft via a horizontal branch pipe. It is designed to be drained to the sewage channel through curved and horizontal pipelines. In the drainage system for draining the drainage discharged from the sanitary equipment on each floor to the sewer (hereinafter, simply referred to as the drainage system), in order to connect the vertical pipes constituting the drainage vertical pipeline and the horizontal branch pipes. A collective joint (joint) having a main pipe to which a vertical pipe can be connected to each of the upper end portion and the lower end portion and a branch pipe connected to the side surface of the main pipe and to which a lateral branch pipe can be connected is used. There is.

上述の集合継手の内部には、流入した排水を旋回等によって良好に整流し、流下させるための整流羽根が設けられている（例えば、特許文献１参照）。 Inside the above-mentioned collective joint, a rectifying blade for satisfactorily rectifying the inflowing drainage by swirling or the like and allowing it to flow down is provided (see, for example, Patent Document 1).

近年、排水システムの施工を行う作業者の減少、技術低下や、排水システムを構成する各種管材の耐久性の確保の観点から、樹脂製の管材を用いること、即ち排水ステムの樹脂化が進められている。立管、横枝管をはじめ、集合継手や脚部継手を全て樹脂製とすることで、軽量で耐久性に優れた排水システムを構成することができる。 In recent years, from the viewpoint of reducing the number of workers who construct drainage systems, deteriorating technology, and ensuring the durability of various pipe materials that make up drainage systems, the use of resin pipe materials, that is, the conversion of drainage stems to resin, has been promoted. ing. By making all the collective joints and leg joints, including the vertical pipes and lateral branch pipes, made of resin, it is possible to construct a lightweight and highly durable drainage system.

樹脂製の継手は、射出成形によって製造されるため、建築物の階層を区画する床スラブの上方に突出する上部材と、床スラブ内に埋設される下部材の少なくとも二つの部材を、を備え、これらの上部材と下部材とが接続されることによって構成されている。また、整流羽根は、羽根部材と該羽根部材を支持する環状部材によって構成され、下部材の内部又は上部材と下部材との間に介在する中部材の内部に収容されている。 Since the resin joint is manufactured by injection molding, it includes at least two members, an upper member protruding above the floor slab that divides the building hierarchy and a lower member embedded in the floor slab. , These upper members and lower members are connected to each other. Further, the rectifying blade is composed of a blade member and an annular member that supports the blade member, and is housed inside the lower member or inside the middle member interposed between the upper member and the lower member.

特許第５４８３９３７号公報Japanese Patent No. 5843937

上述のような樹脂製の継手は、耐火性能を付与するために、非耐火性樹脂で構成され、熱膨張材を備えていることが多い。具体的には、熱膨張材は継手の外周面に設けられており、外方から熱が加わると継手自体が迅速に溶けてなくなると同時に、熱膨張材が膨張することで、継手を挿通するために形成された床スラブの貫通孔を閉塞する。これにより、下階（即ち、下層）で発生した煙や炎が上階（即ち、上層）に伝わるのを防ぐことができる。 The resin joint as described above is often made of a non-fire resistant resin and provided with a thermal expansion material in order to impart fire resistance. Specifically, the thermal expansion material is provided on the outer peripheral surface of the joint, and when heat is applied from the outside, the joint itself quickly melts and disappears, and at the same time, the thermal expansion material expands to insert the joint. It closes the through hole of the floor slab formed for the purpose. This makes it possible to prevent smoke and flames generated on the lower floor (that is, the lower layer) from being transmitted to the upper floor (that is, the upper layer).

例えば特許文献１に記載されている継手をはじめとして、樹脂製の継手の上部材と下部材との接続部分や、旋回羽根を支持する環状部材と集合継手とが重なる部分では、周壁の厚みが増大する。このように周壁の厚みが増大する部分は、通常、床スラブの上側に配置されているため、火災時の熱が伝わり難く、溶け難い。その場合、周壁の厚みが増大する部分は、熱膨張耐火材によって閉塞され難く、下階（下方）で発生した煙や炎を遮断できないという問題があった。 For example, in the joint described in Patent Document 1, the connection portion between the upper member and the lower member of the resin joint, and the portion where the annular member supporting the swivel blade and the collective joint overlap, the thickness of the peripheral wall is increased. Increase. Since the portion where the thickness of the peripheral wall is increased is usually arranged on the upper side of the floor slab, the heat at the time of fire is hard to be transferred and melted. In that case, there is a problem that the portion where the thickness of the peripheral wall is increased is difficult to be blocked by the thermal expansion refractory material, and smoke and flame generated on the lower floor (lower side) cannot be blocked.

本発明は、上述の事情を鑑みてなされたものであり、下方で発生した煙や炎を良好に遮断可能な継手を提供する。 The present invention has been made in view of the above circumstances, and provides a joint capable of satisfactorily blocking smoke and flame generated below.

本発明に係る継手は、床スラブに挿通可能に構成された継手であって、複数の分岐管を備え、前記継手が前記床スラブに挿通された状態において前記床スラブの上方に突出する上部材と、前記上部材に接続され、前記継手が前記床スラブに挿通された状態において上部が前記床スラブの内部に埋設されると共に下部が前記床スラブの下方に突出する下部材と、前記下部材の前記上部内に収容された整流羽根と、前記下部材の周壁に設けられた熱膨張材と、を備え、前記継手が前記床スラブに挿通された状態において、前記熱膨張材の上端は前記床スラブの上端面より低い位置に配され、前記熱膨張材の下端は前記整流羽根の上端より低い位置に配されていることを特徴とする。 The joint according to the present invention is a joint configured to be insertable into the floor slab, and includes a plurality of branch pipes, and is an upper member that protrudes upward of the floor slab in a state where the joint is inserted through the floor slab. And the lower member connected to the upper member, the upper part is embedded inside the floor slab and the lower part protrudes below the floor slab in a state where the joint is inserted into the floor slab, and the lower member. A rectifying blade housed in the upper portion of the above, and a thermal expansion material provided on the peripheral wall of the lower member, and the upper end of the thermal expansion material is the upper end of the thermal expansion material in a state where the joint is inserted into the floor slab. It is characterized in that it is arranged at a position lower than the upper end surface of the floor slab, and the lower end of the thermal expansion material is arranged at a position lower than the upper end of the rectifying blade.

上述の構成によれば、整流羽根が熱のかかり易い高さ且つ継手の管内に配置されるので、熱がかかった際に迅速に溶けてなくなり、床スラブにおいて継手を挿通させるために形成された貫通孔が熱膨張材によって円滑に閉塞される。これにより、下方（即ち、下層）で発生した煙や炎が良好に遮断される。 According to the above configuration, since the rectifying blades are arranged at a height where heat is easily applied and in the pipe of the joint, they are formed to quickly melt away when heat is applied and to insert the joint in the floor slab. The through hole is smoothly closed by the thermal expansion material. This satisfactorily blocks smoke and flames generated below (ie, the lower layer).

上述の継手において、高さ方向における前記熱膨張材の幅は３０ｍｍ以上６０ｍｍ以下であり、前記熱膨張材の下端は前記床スラブの上端面から３０ｍｍ下方の高さと１００ｍｍ下方の高さとの間に配されていることが好ましい。 In the above-mentioned joint, the width of the thermal expansion material in the height direction is 30 mm or more and 60 mm or less, and the lower end of the thermal expansion material is between the height 30 mm below and the height 100 mm below the upper end surface of the floor slab. It is preferable that they are arranged.

上述の構成によれば、床スラブの厚みが１００ｍ以上という一般的な条件において、熱膨張材と整流羽根との相対位置が適切になるので、継手の耐火性能が確実に発揮される。
また、本願発明は、以下の態様を有する。
＜１＞
床スラブに挿通可能に構成された樹脂製の継手であって、
複数の分岐管を備え、前記継手が前記床スラブに挿通された状態において前記床スラブの上方に突出する樹脂製の上部材と、
前記上部材の下端に外嵌して接続され、前記継手が前記床スラブに挿通された状態において、上部が前記床スラブの内部に位置しかつ前記上部の上端が前記床スラブの上端面から突出すると共に下部が前記床スラブの下方に突出する樹脂製の下部材と、
前記下部材の前記上部内に位置し、前記下部材の軸芯に対して傾斜する羽根部材と、
前記下部材の周壁に設けられた熱膨張材と、
を備え、
前記継手が前記床スラブに挿通された状態において、
前記熱膨張材は、前記床スラブの内部に埋設される位置に配され、
前記熱膨張材の下端は、前記羽根部材の上端より低い位置に配されている継手。
＜２＞
前記継手が前記床スラブに挿通された状態において、
前記熱膨張材の上端は、前記床スラブの上端面より低い位置に配されている、＜１＞に記載の継手。
＜３＞
前記継手が前記床スラブに挿通された状態において、
前記熱膨張材の上端は、前記上部材の下端よりも低い位置に配されている、＜１＞又は＜２＞に記載の継手。
＜４＞
多層階からなる建築物の排水システムであって、
各階の衛生機器等から排出される排水を流下させるための横枝管と、
前記建築物のパイプシャフト内の排水立管路を構成し、前記横枝管を流下した排水を流下させる立管と、
前記横枝管と前記立管とを接続する＜１＞～＜３＞のいずれかに記載の継手と、を備えることを特徴とする、排水システム。
＜５＞
＜４＞に記載の排水システムを備える建築物。 According to the above configuration, the relative position between the thermal expansion material and the rectifying blade is appropriate under the general condition that the thickness of the floor slab is 100 m or more, so that the fire resistance performance of the joint is surely exhibited.
In addition, the present invention has the following aspects.
<1>
A resin joint that can be inserted into a floor slab.
A resin upper member having a plurality of branch pipes and projecting upward of the floor slab when the joint is inserted into the floor slab.
In a state where the upper member is fitted and connected to the lower end of the upper member and the joint is inserted into the floor slab, the upper portion is located inside the floor slab and the upper end of the upper portion protrudes from the upper end surface of the floor slab. And a resin lower member whose lower part protrudes below the floor slab,
A blade member located in the upper part of the lower member and inclined with respect to the axis of the lower member.
The thermal expansion material provided on the peripheral wall of the lower member and
Equipped with
With the joint inserted through the floor slab,
The thermal expansion material is arranged at a position to be embedded inside the floor slab.
The lower end of the thermal expansion material is a joint arranged at a position lower than the upper end of the blade member.
<2>
With the joint inserted through the floor slab,
The joint according to <1>, wherein the upper end of the thermal expansion material is arranged at a position lower than the upper end surface of the floor slab.
<3>
With the joint inserted through the floor slab,
The joint according to <1> or <2>, wherein the upper end of the thermal expansion material is arranged at a position lower than the lower end of the upper member.
<4>
A drainage system for a multi-storey building
A horizontal branch pipe for draining wastewater discharged from sanitary equipment on each floor,
A vertical pipe that constitutes a drainage vertical pipe in the pipe shaft of the building and allows drainage that has flowed down the lateral branch pipe to flow down,
A drainage system comprising the joint according to any one of <1> to <3> connecting the lateral branch pipe and the vertical pipe.
<5>
A building equipped with the drainage system described in <4>.

本発明に係る継手によれば、挿通された床スラブの下方で発生した煙や炎を良好に遮断することができる。 According to the joint according to the present invention, smoke and flame generated below the inserted floor slab can be satisfactorily blocked.

本発明を適用した一実施形態の継手を備えた排水システムの側面図である。It is a side view of the drainage system provided with the joint of one Embodiment to which this invention was applied. 本発明を適用した一実施形態の集合継手（継手）の側断面図である。It is a side sectional view of the collective joint (joint) of one Embodiment to which this invention was applied. 本発明を適用した一実施形態の集合継手の別の側断面図である。It is another side sectional view of the collective joint of one Embodiment to which this invention was applied. 本発明を適用した一実施形態の集合継手のさらに別の側断面図である。It is still another side sectional view of the collective joint of one Embodiment to which this invention was applied. 本発明を適用した別の態様の集合継手の側断面図である。It is a side sectional view of the collective joint of another aspect to which this invention is applied. 本発明を適用した別の態様の集合継手の別の側断面図である。It is another side sectional view of the collective joint of another aspect to which this invention is applied. 本発明を適用した別の態様の集合継手のさらに別の側断面図である。It is still another side sectional view of the collective joint of another aspect to which this invention is applied. 本発明を適用したさらに別の態様の集合継手の側断面図である。It is a side sectional view of the collective joint of still another aspect to which this invention is applied. 本発明を適用したさらに別の態様の集合継手の別の側断面図である。It is another side sectional view of the collective joint of still another aspect to which this invention is applied. 本発明を適用した他の態様の集合継手の側断面図である。It is a side sectional view of the collective joint of another aspect to which this invention is applied.

以下、本発明を適用した継手の実施形態について、図面を参照して説明する。なお、以下の説明で用いる図面は模式的なものであり、長さ、幅、及び厚みの比率等は実際のものと同一とは限らず、適宜変更することができる。 Hereinafter, embodiments of the joint to which the present invention is applied will be described with reference to the drawings. The drawings used in the following description are schematic, and the length, width, thickness ratio, etc. are not always the same as the actual ones and can be changed as appropriate.

図１及び図２に示すように、本発明を適用した一実施形態の集合継手（継手）１は、床スラブＳに挿通可能に構成された継手であって、上部材１２と、下部材１４と、整流羽根１６と、熱膨張材３０と、を備えている。なお、図１では、整流羽根１６及び熱膨張材３０の図示を省略する。 As shown in FIGS. 1 and 2, the collective joint (joint) 1 of the embodiment to which the present invention is applied is a joint configured to be insertable into the floor slab S, and is a joint having an upper member 12 and a lower member 14. A rectifying blade 16 and a thermal expansion material 30 are provided. In FIG. 1, the rectifying blade 16 and the thermal expansion material 30 are not shown.

上部材１２は、集合継手１が床スラブＳに挿通された状態において床スラブＳの上方に突出する管部材である。上部材１２は、上下方向に沿って延びる本管２と、本管２の外周面に接続された複数本（本実施形態では三本）の分岐管３と、を備えている。三本の分岐管３Ａ，３Ｂ,３Ｃのそれぞれの軸芯は左右方向（即ち、横方向）に沿って同一面上に配置され、互いに本管２の軸芯に直交している。なお、以下では、分岐管３Ａ，３Ｂ，３Ｃについて、特に区別する必要がない場合は、分岐管３と記載し、関連する構成要素についてもこの記載を援用する。 The upper member 12 is a pipe member that projects upward from the floor slab S in a state where the collective joint 1 is inserted into the floor slab S. The upper member 12 includes a main pipe 2 extending in the vertical direction and a plurality of (three in the present embodiment) branch pipes 3 connected to the outer peripheral surface of the main pipe 2. The shaft cores of the three branch pipes 3A, 3B, and 3C are arranged on the same surface along the left-right direction (that is, the lateral direction), and are orthogonal to the shaft cores of the main pipe 2. In the following, the branch pipes 3A, 3B, and 3C will be described as the branch pipe 3 when it is not necessary to distinguish them, and this description will be used for the related components.

下部材１４は、上部材１２に接続され、具体的には上部材１２の下部に外嵌されている管部材である。集合継手１が床スラブＳに挿通された状態において、下部材１４の上部１４ａは床スラブＳの内部に埋設されると共に、下部材１４の下部１４ｂが床スラブＳの下方に突出している。 The lower member 14 is a pipe member connected to the upper member 12 and specifically fitted to the lower part of the upper member 12. In a state where the collective joint 1 is inserted into the floor slab S, the upper portion 14a of the lower member 14 is embedded inside the floor slab S, and the lower portion 14b of the lower member 14 projects below the floor slab S.

図１に示すように、集合継手１は、例えばマンション等の多層階からなる建築物（図示略）の排水システムに用いられるものである。具体的には、集合継手１は、各階の衛生機器等から排出される排水を流下させるための横枝管７と、パイプシャフト内の排水立管路を構成し、横枝管７を流下した排水を排水システムの最下部へと流下させる立管９とを接続可能に構成されている。 As shown in FIG. 1, the collective joint 1 is used for a drainage system of a building (not shown) having multiple floors such as an apartment. Specifically, the collective joint 1 constitutes a horizontal branch pipe 7 for flowing drainage discharged from sanitary equipment and the like on each floor and a drainage vertical pipe line in the pipe shaft, and the horizontal branch pipe 7 flows down. It is configured to be connectable to a standing pipe 9 that allows drainage to flow down to the bottom of the drainage system.

集合継手１の上部材１２の上部には立管９（例えば、立管９Ａ）の下部が嵌合し、下部材１４の下部には別の立管９（例えば、立管９Ｂ）の上部が嵌合している。図２に示しているが、本管２の上部の受け口にブッシュ２８が内嵌されている。ブッシュ２８は、立管９Ａ（図示略）のサイズや形状の変更に対応する目的で、立管９Ａに外嵌可能に形成されている。図１に示すように、集合継手１の分岐管３のそれぞれには、横枝管７の下流側の端部が嵌合している。 The lower part of the standing pipe 9 (for example, the standing pipe 9A) is fitted to the upper part of the upper member 12 of the collective joint 1, and the upper part of another standing pipe 9 (for example, the standing pipe 9B) is fitted to the lower part of the lower member 14. It is fitted. As shown in FIG. 2, the bush 28 is internally fitted in the receiving port at the upper part of the main pipe 2. The bush 28 is formed so as to be externally fitable in the vertical pipe 9A for the purpose of responding to changes in the size and shape of the vertical pipe 9A (not shown). As shown in FIG. 1, the downstream end of the lateral branch pipe 7 is fitted to each of the branch pipes 3 of the collective joint 1.

集合継手１は、上下方向で隣り合う各階の間に介在するコンクリート製の床スラブＳに形成された貫通孔Ｈに挿通されている。貫通孔Ｈの側壁と集合継手１との間は、モルタルＭが充填されている。なお、図２以降の図面において、床スラブＳとモルタルＭの一部を省略する。 The collective joint 1 is inserted through a through hole H formed in a concrete floor slab S interposed between adjacent floors in the vertical direction. A mortar M is filled between the side wall of the through hole H and the collective joint 1. In the drawings after FIG. 2, a part of the floor slab S and the mortar M is omitted.

整流羽根１６は、下部材１４の上部１４ａの管内に収容され、羽根部材１８と羽根部材１８を支持する環状部材１９とを備えている。羽根部材１８は、環状部材１９の径方向の
一方の内端から中心を通り、他方の内端に向かう方向に向かって下降しつつ、螺旋を描くように形成された部材で構成されている。羽根部材１８の上端１８ａ及び下端１８ｂはそれぞれ、連結部２１を介して環状部材１９と接続されている。 The rectifying blade 16 is housed in a pipe of the upper portion 14a of the lower member 14, and includes a blade member 18 and an annular member 19 that supports the blade member 18. The blade member 18 is composed of a member formed so as to draw a spiral while passing through the center from one inner end in the radial direction of the annular member 19 and descending toward the other inner end. The upper end 18a and the lower end 18b of the blade member 18 are each connected to the annular member 19 via the connecting portion 21.

熱膨張材３０は、下部材１４の外周面（周壁）に設けられている。熱膨張材３０としては、熱によって膨張可能な素材であれば特に限定されないが、例えば公知の熱膨張シートが挙げられる。集合継手１が床スラブＳに挿通された状態において、図２に示すように、熱膨張材３０の上端３０ａは、床スラブＳの上端面Ｓａより低い位置に配されている。なお、「熱膨張材３０の上端３０ａが床スラブＳの上端面Ｓａより低い位置にある」とは、熱膨張材３０が床スラブＳの内部にあることを示し、熱膨張材３０の上端３０ａと床スラブＳの上端面Ｓａとが同じ高さであってもよい。一方、熱膨張材３０の下端３０ｂは、羽根部材１８の上端１８ａより低い位置に配されている。即ち、熱膨張材３０の下端３０ｂは、羽根部材１８の上端１８ａより低い位置に配されている。 The thermal expansion member 30 is provided on the outer peripheral surface (peripheral wall) of the lower member 14. The thermal expansion material 30 is not particularly limited as long as it is a material that can be expanded by heat, and examples thereof include known thermal expansion sheets. As shown in FIG. 2, the upper end 30a of the thermal expansion material 30 is arranged at a position lower than the upper end surface Sa of the floor slab S in a state where the collective joint 1 is inserted through the floor slab S. In addition, "the upper end 30a of the thermal expansion material 30 is at a position lower than the upper end surface Sa of the floor slab S" indicates that the thermal expansion material 30 is inside the floor slab S, and the upper end 30a of the thermal expansion material 30 And the upper end surface Sa of the floor slab S may be at the same height. On the other hand, the lower end 30b of the thermal expansion material 30 is arranged at a position lower than the upper end 18a of the blade member 18. That is, the lower end 30b of the thermal expansion material 30 is arranged at a position lower than the upper end 18a of the blade member 18.

上述の条件を満たした上で、図３に示すように、高さ方向における熱膨張材３０の幅は３０ｍｍ以上６０ｍｍ以下であることが好ましい。また、熱膨張材３０の下端３０ｂは床スラブＳの上端面Ｓａから３０ｍｍ下方の高さと１００ｍｍ下方の高さとの間に配されていることが好ましい。 After satisfying the above conditions, as shown in FIG. 3, the width of the thermal expansion material 30 in the height direction is preferably 30 mm or more and 60 mm or less. Further, it is preferable that the lower end 30b of the thermal expansion material 30 is arranged between the height 30 mm below the upper end surface Sa of the floor slab S and the height 100 mm below.

上述の条件を満たすことにより、例えば床スラブＳの上端面Ｓａと熱膨張材３０の下端３０ｂとの高さは１００ｍｍ程度確保される。これにより、図４に示すように、分岐管３に接続する横枝管７等の排水器具の高さに応じて、集合継手１を図３に示す位置（即ち、床スラブＳに対する集合継手１の相対位置）から７０ｍｍ程度浮かせて配管する場合にも、高さ方向において熱膨張材３０が床スラブＳの上端面Ｓａと下端面Ｓｂとの間に配置される。 By satisfying the above conditions, for example, the height of the upper end surface Sa of the floor slab S and the lower end 30b of the thermal expansion material 30 is secured to be about 100 mm. As a result, as shown in FIG. 4, the collective joint 1 is placed at the position shown in FIG. 3 (that is, the collective joint 1 with respect to the floor slab S) according to the height of the drainage device such as the horizontal branch pipe 7 connected to the branch pipe 3. The thermal expansion material 30 is arranged between the upper end surface Sa and the lower end surface Sb of the floor slab S in the height direction even when the pipe is floated about 70 mm from the relative position of the floor slab S.

（他の態様（１））
上述の実施形態の他の実施形態として、図５及び図６に示すように、集合継手１には遮音カバー４０が設けられていてもよい。遮音カバー４０は、集合継手１の受け口で開口している。熱膨張材３０は、図５に示すように、集合継手１の下部材１４の外側且つ遮音カバー４０の内側に設けられていてもよく、図６に示すように、遮音カバー４０の外側に設けられていてもよい。 (Other aspect (1))
As another embodiment of the above-described embodiment, as shown in FIGS. 5 and 6, the collective joint 1 may be provided with a sound insulating cover 40. The sound insulation cover 40 is opened at the receiving port of the collective joint 1. As shown in FIG. 5, the thermal expansion material 30 may be provided on the outside of the lower member 14 of the collective joint 1 and inside the sound insulation cover 40, and may be provided on the outside of the sound insulation cover 40 as shown in FIG. It may have been.

また、熱膨張材３０が遮音カバー４０の内側に設けられている場合、図７に示すように、遮音カバー４０と集合継手１の下部材１４との間に拘束層４８が設けられていることが好ましい。拘束層４８の素材としては、例えばアルミ、ガラス繊維不織布、ガラス繊維織布等が挙げられる。このように拘束層４８が設けられ、熱膨張竿３０の粘着面（又は非拘束面）３０ｃが遮音カバー４０側に配されることで、火災時における貫通孔Ｈの閉塞度を高めることができる。 Further, when the thermal expansion material 30 is provided inside the sound insulation cover 40, as shown in FIG. 7, the restraint layer 48 is provided between the sound insulation cover 40 and the lower member 14 of the collective joint 1. Is preferable. Examples of the material of the restraint layer 48 include aluminum, glass fiber non-woven fabric, and glass fiber woven fabric. By providing the restraint layer 48 in this way and arranging the adhesive surface (or non-restraint surface) 30c of the thermal expansion rod 30 on the sound insulation cover 40 side, the degree of closure of the through hole H in the event of a fire can be increased. ..

（他の態様（２））
図６に例示したように遮音カバー４０の外側に熱膨張材３０が設けられている場合、上述の実施形態のさらに他の実施形態として、図８に示すように、熱膨張材３０の外側、即ちモルタルＭの埋め戻し位置に金網等の網状の不燃焼部材４４が設けられていてもよい。また、図９に示すように、遮音カバー４０の外側に不燃焼部材４４が設けられ、高さ方向において不燃焼部材４４がはみ出すように不燃焼部材４４の外側に熱膨張材３０が設けられていてもよい。これらの構成により、不燃焼部材４４とモルタルＭとが絡み付き、熱膨張材３０の落下が防止される。上述のように、遮音カバー４０の外側（即ち、モルタルＭ側）に接して熱膨張材３０が巻かれることで、火災時における貫通孔Ｈの閉塞度を高めることができる。 (Other aspect (2))
When the thermal expansion material 30 is provided on the outside of the sound insulating cover 40 as illustrated in FIG. 6, as still another embodiment of the above-described embodiment, as shown in FIG. 8, the outside of the thermal expansion material 30 That is, a net-like non-combustible member 44 such as a wire mesh may be provided at the backfill position of the mortar M. Further, as shown in FIG. 9, a non-combustion member 44 is provided on the outside of the sound insulation cover 40, and a thermal expansion member 30 is provided on the outside of the non-combustion member 44 so that the non-combustion member 44 protrudes in the height direction. You may. With these configurations, the non-combustible member 44 and the mortar M are entangled with each other, and the thermal expansion material 30 is prevented from falling. As described above, the thermal expansion material 30 is wound in contact with the outside of the sound insulation cover 40 (that is, the mortar M side), so that the degree of closure of the through hole H in the event of a fire can be increased.

（他の態様（３））
集合継手１は、上部材１２と下部材１４の間に中部材１３を備えていてもよい。例えば、中部材１３の上端部は上部材１２の下部に内嵌され、中部材１３の下端部は下部材１４の上部に内嵌されている。また、中部材１３は、床スラブ及びモルタルＭに埋設される。このような構成においては、熱膨張材３０は、上部材１２の下部の外側に設けられている。 (Other aspect (3))
The collective joint 1 may include a middle member 13 between the upper member 12 and the lower member 14. For example, the upper end portion of the middle member 13 is internally fitted in the lower portion of the upper member 12, and the lower end portion of the middle member 13 is internally fitted in the upper portion of the lower member 14. Further, the middle member 13 is embedded in the floor slab and the mortar M. In such a configuration, the thermal expansion member 30 is provided on the outside of the lower portion of the upper member 12.

また、整流羽根１６の羽根部材１８は上述のように螺旋状に形成されている必要はなく、集合継手１に流入する流体の流れを整えることができれば、特に限定されず、図１０に示すように、下部材１４の内部の外周側から中心に向けて上昇するように形成されていてもよい。また、整流羽根１６は、環状部材１９を備えずに、下部材１４の内周面に直接接続されていてもよい。 Further, the blade member 18 of the rectifying blade 16 does not need to be formed in a spiral shape as described above, and is not particularly limited as long as the flow of the fluid flowing into the collective joint 1 can be adjusted, as shown in FIG. In addition, it may be formed so as to rise from the outer peripheral side of the inside of the lower member 14 toward the center. Further, the straightening vane 16 may be directly connected to the inner peripheral surface of the lower member 14 without providing the annular member 19.

以上説明したように、上述の実施形態の集合継手１によれば、整流羽根１６が熱のかかり易い高さ且つ集合継手１の下部材１４の内部に配置されるので、熱がかかった際に迅速に溶けてなくなり、貫通孔Ｈが熱膨張材３０によって円滑に閉塞される。これにより、床スラブＳより下層で発生した煙や炎を良好に遮断することができる。 As described above, according to the collective joint 1 of the above-described embodiment, the straightening vane 16 is arranged at a height at which heat is easily applied and inside the lower member 14 of the collective joint 1, so that when heat is applied, it is arranged. It melts quickly and disappears, and the through hole H is smoothly closed by the thermal expansion material 30. This makes it possible to satisfactorily block smoke and flames generated in the layer below the floor slab S.

また、上述の実施形態の集合継手１によれば、高さ方向における熱膨張材３０の幅は３０ｍｍ以上６０ｍｍ以下とされ、熱膨張材３０の下端３０ｂは床スラブＳの上端面Ｓａから３０ｍｍ下方の高さと１００ｍｍ下方の高さとの間に配されているので、熱膨張材３０の位置を最適化することができる。例えば床スラブＳの厚みが１００ｍ以上という一般的な条件において、熱膨張材３０と整流羽根１６との相対位置が適切になるので、集合継手１の耐火性能を確実に発揮させることができる。 Further, according to the collective joint 1 of the above-described embodiment, the width of the thermal expansion material 30 in the height direction is 30 mm or more and 60 mm or less, and the lower end 30b of the thermal expansion material 30 is 30 mm below the upper end surface Sa of the floor slab S. Since it is arranged between the height of the material and the height of 100 mm below, the position of the thermal expansion material 30 can be optimized. For example, under the general condition that the thickness of the floor slab S is 100 m or more, the relative position between the thermal expansion material 30 and the rectifying blade 16 becomes appropriate, so that the fire resistance performance of the collective joint 1 can be reliably exhibited.

以上、本発明の好ましい実施形態について詳述したが、本発明は係る特定の実施形態に限定されるものではなく、特許請求の範囲内に記載された本発明の要旨の範囲内において、種々の変形・変更が可能である。 Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the specific embodiment, and various aspects are described within the scope of the claims of the present invention. It can be transformed and changed.

１…集合継手（継手）
３…分岐管
１２…上部材
１４…下部材
１６…整流羽根
３０…熱膨張材
３０ａ…上端
３０ｂ…下端
Ｓ…床スラブ
Ｓａ…上端面 1 ... Collective joint (joint)
3 ... Branch pipe 12 ... Upper member 14 ... Lower member 16 ... Rectifying blade 30 ... Thermal expansion material 30a ... Upper end 30b ... Lower end S ... Floor slab Sa ... Upper end surface

Claims (5)

床スラブに挿通可能に構成された樹脂製の継手であって、
複数の分岐管を備え、前記継手が前記床スラブに挿通された状態において前記床スラブの上方に突出する樹脂製の上部材と、
前記上部材の下端に外嵌して接続され、前記継手が前記床スラブに挿通された状態において、上部が前記床スラブの内部に位置しかつ前記上部の上端が前記床スラブの上端面から突出すると共に下部が前記床スラブの下方に突出する樹脂製の下部材と、
前記下部材の前記上部内に位置し、前記下部材の軸芯に対して傾斜する羽根部材と、
前記下部材の周壁に設けられた熱膨張材と、
を備え、
前記継手が前記床スラブに挿通された状態において、
前記熱膨張材は、前記床スラブの内部に埋設される位置に配され、
前記熱膨張材の下端は、前記羽根部材の上端より低い位置に配されている継手。 A resin joint that can be inserted into a floor slab.
A resin upper member having a plurality of branch pipes and projecting upward of the floor slab when the joint is inserted into the floor slab.
In a state where the upper member is fitted and connected to the lower end of the upper member and the joint is inserted into the floor slab, the upper portion is located inside the floor slab and the upper end of the upper portion protrudes from the upper end surface of the floor slab. And a resin lower member whose lower part protrudes below the floor slab,
A blade member located in the upper part of the lower member and inclined with respect to the axis of the lower member.
The thermal expansion material provided on the peripheral wall of the lower member and
Equipped with
With the joint inserted through the floor slab,
The thermal expansion material is arranged at a position to be embedded inside the floor slab.
The lower end of the thermal expansion material is a joint arranged at a position lower than the upper end of the blade member. 前記継手が前記床スラブに挿通された状態において、
前記熱膨張材の上端は、前記床スラブの上端面より低い位置に配されている、請求項１に記載の継手。 With the joint inserted through the floor slab,
The joint according to claim 1, wherein the upper end of the thermal expansion material is arranged at a position lower than the upper end surface of the floor slab. 前記継手が前記床スラブに挿通された状態において、
前記熱膨張材の上端は、前記上部材の下端よりも低い位置に配されている、請求項１又は２に記載の継手。 With the joint inserted through the floor slab,
The joint according to claim 1 or 2, wherein the upper end of the thermal expansion material is arranged at a position lower than the lower end of the upper member. 多層階からなる建築物の排水システムであって、
各階の衛生機器等から排出される排水を流下させるための横枝管と、
前記建築物のパイプシャフト内の排水立管路を構成し、前記横枝管を流下した排水を流下させる立管と、
前記横枝管と前記立管とを接続する請求項１～３のいずれか一項に記載の継手と、を備えることを特徴とする、排水システム。 A drainage system for a multi-storey building
A horizontal branch pipe for draining wastewater discharged from sanitary equipment on each floor,
A vertical pipe that constitutes a drainage vertical pipe in the pipe shaft of the building and allows drainage that has flowed down the lateral branch pipe to flow down,
A drainage system comprising the joint according to any one of claims 1 to 3, which connects the lateral branch pipe and the standing pipe. 請求項４に記載の排水システムを備える建築物。 A building provided with the drainage system according to claim 4.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003222271A (en) * 2002-01-30 2003-08-08 A & A Material Corp Penetration work structure for fire compartment
JP2006342564A (en) * 2005-06-08 2006-12-21 Noriatsu Kojima Supporting structure of coated pipe
JP2015175187A (en) * 2014-03-17 2015-10-05 株式会社小島製作所 Drain pipe joint
JP2017014762A (en) * 2015-06-30 2017-01-19 株式会社小島製作所 Drain pipe joint
JP2017014769A (en) * 2015-06-30 2017-01-19 株式会社小島製作所 Covering material for drain pipe joint

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003222271A (en) * 2002-01-30 2003-08-08 A & A Material Corp Penetration work structure for fire compartment
JP2006342564A (en) * 2005-06-08 2006-12-21 Noriatsu Kojima Supporting structure of coated pipe
JP2015175187A (en) * 2014-03-17 2015-10-05 株式会社小島製作所 Drain pipe joint
JP2017014762A (en) * 2015-06-30 2017-01-19 株式会社小島製作所 Drain pipe joint
JP2017014769A (en) * 2015-06-30 2017-01-19 株式会社小島製作所 Covering material for drain pipe joint

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