JP2006104892A - Roof drain - Google Patents

Roof drain Download PDF

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JP2006104892A
JP2006104892A JP2004296454A JP2004296454A JP2006104892A JP 2006104892 A JP2006104892 A JP 2006104892A JP 2004296454 A JP2004296454 A JP 2004296454A JP 2004296454 A JP2004296454 A JP 2004296454A JP 2006104892 A JP2006104892 A JP 2006104892A
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waterproof layer
frp
drain
resin
vinyl chloride
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JP4436743B2 (en
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Masakazu Kobayashi
正和 小林
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Kaneso Co Ltd
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Kaneso Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof drain suitable for construction for forming a waterproof layer by an FRP waterproof construction method. <P>SOLUTION: A drain body 2 is made of a vinyl chloride resin superior in adhesion with an RFP waterproof layer 15, to thereby improve adhesion between a resin liquid for constituting the FRP waterproof layer 15 and a surface 3' of a collar part 3 for applying the resin liquid, and the edge 15' of the FRP waterproof layer 15 formed by the RFP waterproof construction method, can be firmly laid on the surface 3' of the collar part 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ＦＲＰ防水工法によって防水層を形成する施工に適したルーフドレインに関する。   The present invention relates to a roof drain suitable for construction for forming a waterproof layer by an FRP waterproofing method.

建築物の屋上やベランダにおける防水工法の一つとして、ＦＲＰ（繊維強化プラスチック）防水工法が知られている（例えば、特許文献１参照）。この工法は、屋上やベランダ等の床面上に樹脂液（不飽和ポリエステル樹脂）を塗布した後、ガラス繊維マットを敷設し、さらに該マットに前記樹脂液を塗布して含浸させ、脱泡処理後、硬化させることによりシームレスのＦＲＰ防水層を形成するものであって、この工法によれば、シート防水等に見られるような継ぎ目が一切できず、隅部や角部の収まりがよく、耐候性や耐久性に優れた防水層を得ることができる。   As one of waterproofing methods for building rooftops and verandas, a FRP (fiber reinforced plastic) waterproofing method is known (for example, see Patent Document 1). In this method, after applying a resin liquid (unsaturated polyester resin) on a floor surface such as a rooftop or a veranda, a glass fiber mat is laid, and the resin liquid is further applied and impregnated into the mat, followed by defoaming treatment. After that, a seamless FRP waterproof layer is formed by curing, and according to this construction method, there is no seam as seen in sheet waterproofing, the corners and corners fit well, and the weather resistance A waterproof layer excellent in properties and durability can be obtained.

一方、建築物の屋上やベランダ等の床面上に配設されるルーフドレインａは、図４に示すように、鍔部ｃと該鍔部ｃに連成された排水管部ｄとを備えたドレイン本体ｂが床面ｆ上に埋設され、周囲の床面ｆ上に敷設された防水層ｓの端縁ｔを鍔部ｃの表面に被着した状態で、該鍔部ｃと上方の防水層押えｅとで防水層ｓの端縁ｔを挟持するようにして施工されている。
特開２００３−２７６７５号公報（段落［００２１］） On the other hand, as shown in FIG. 4, the roof drain a disposed on the roof surface of a building or a floor such as a veranda has a collar part c and a drain pipe part d coupled to the collar part c. The drain main body b is buried on the floor surface f, and the edge t of the waterproof layer s laid on the surrounding floor surface f is attached to the surface of the collar portion c. It is constructed so that the edge t of the waterproof layer s is sandwiched between the waterproof layer presser e.
JP 2003-27675 A (paragraph [0021])

ところで、鋳鉄製或いはアルミニウム合金鋳物製のルーフドレインにはエポキシ樹脂の防錆塗装が施されているが、該塗装はＦＲＰ防水層を構成する樹脂液（不飽和ポリエステル樹脂）との密着性が悪いため、鍔部ｃの表面とＦＲＰ防水層との間に生じる僅かな隙間から毛細管現象によって雨水が浸入し、これが周囲の床内に浸透して水漏れを起こす虞があった。そこで、ＦＲＰ防水工法によってＦＲＰ防水層を形成する場合には、ＦＲＰ防水層を構成する樹脂液が塗布される鍔部ｃの表面の塗装を剥離して鋳鉄素地或いはアルミニウム素地を露出させる必要があり、この作業が面倒で手間と時間が掛かる非能率的な作業となっていた。このような塗装の剥離作業を行う必要がないルーフドレインとして、一般的なエポキシ樹脂の防錆塗装に代えて、ＦＲＰ防水層との密着性がよい塩化ビニルのコーティングを鋳鉄製或いはアルミニウム合金鋳物製のドレイン本体に施したものも生産されているが、特注品であるため、手間と時間が掛かり、コスト高になるという問題点があった。また、ステンレス製或いはステンレス鋳鋼製のルーフドレインにあっては、表面が緻密でＦＲＰ防水層との密着性が悪いため、サンドペーパー等で表面を粗くする作業を行う必要があった。   By the way, the roof drain made of cast iron or aluminum alloy is coated with an anti-rust coating of epoxy resin, but the coating has poor adhesion to the resin liquid (unsaturated polyester resin) constituting the FRP waterproof layer. For this reason, rainwater may infiltrate through a slight gap generated between the surface of the flange c and the FRP waterproof layer, and this may penetrate into the surrounding floor and cause water leakage. Therefore, when the FRP waterproof layer is formed by the FRP waterproof method, it is necessary to peel the coating on the surface of the collar portion c to which the resin liquid constituting the FRP waterproof layer is applied to expose the cast iron base or the aluminum base. This work was cumbersome and inefficient and time consuming. For roof drains that do not need to be peeled off, paint instead of a general epoxy resin rust-proof coating is made of cast iron or aluminum alloy casting with a vinyl chloride coating that has good adhesion to the FRP waterproof layer However, since it is a custom-made product, it takes time and labor, resulting in high costs. In addition, since the roof drain made of stainless steel or cast stainless steel has a dense surface and poor adhesion to the FRP waterproof layer, it has been necessary to roughen the surface with sandpaper or the like.

本発明は、かかる従来の問題点を解消し得るルーフドレインを提供することを目的とするものである。   An object of the present invention is to provide a roof drain capable of solving such a conventional problem.

本発明は、鍔部と該鍔部に連成された排水管部とを備えたドレイン本体の、その鍔部の表面にＦＲＰ防水層が被着されるものであって、前記ドレイン本体が、ＦＲＰ防水層との密着性に優れた塩化ビニル系樹脂製であることを特徴とするルーフドレインである。   The present invention is a drain main body provided with a flange portion and a drain pipe portion coupled to the flange portion, the FRP waterproof layer is deposited on the surface of the flange portion, the drain body, It is a roof drain characterized by being made of a vinyl chloride resin having excellent adhesion to the FRP waterproof layer.

ここで、前記ドレイン本体は、硬質塩化ビニル系樹脂の射出成形によって形成され得る。   Here, the drain body may be formed by injection molding of a hard vinyl chloride resin.

かかる構成にあって、ドレイン本体が、ＦＲＰ防水層との密着性に優れた塩化ビニル系樹脂製であることにより、ＦＲＰ防水層を構成する樹脂液と、該樹脂液が塗布される鍔部の表面との密着性がよく、ＦＲＰ防水工法で形成されるＦＲＰ防水層の端縁を鍔部の表面に強固に被着することができる。これにより、従来のように、塗装の剥離作業やサンドペーパー等による粗面形成作業を行う必要がなく、施工能率が向上する。また、塩化ビニルのコーティングを金属製のドレイン本体に施す場合に比して、手間と時間が掛からず、生産コストが低減する。   In such a configuration, the drain main body is made of a vinyl chloride resin having excellent adhesion to the FRP waterproof layer, so that the resin liquid constituting the FRP waterproof layer and the flange portion to which the resin liquid is applied Adhesiveness with the surface is good, and the edge of the FRP waterproofing layer formed by the FRP waterproofing method can be firmly attached to the surface of the buttocks. As a result, it is not necessary to perform a coating peeling operation or a rough surface forming operation using sandpaper or the like as in the prior art, and the construction efficiency is improved. In addition, compared to the case where the vinyl chloride coating is applied to the metal drain body, the labor and time are not required, and the production cost is reduced.

以下に、本発明に係るルーフドレインの第一実施例を、図１に基づいて説明する。この第一実施例は、本発明を縦引き排水用のルーフドレイン１Ａに適用したものである。   Below, the 1st Example of the roof drain which concerns on this invention is described based on FIG. In the first embodiment, the present invention is applied to a roof drain 1A for longitudinal drainage.

ルーフドレイン１Ａは、床ｆ上に埋設されるドレイン本体２と、該ドレイン本体２の鍔部３上に螺子杆６及びナット７を介して固定される防水層押え４と、該防水層押え４にビス８で固定されるストレーナ５とにより構成されている。前記ドレイン本体２は、円形受皿形状の鍔部３と該鍔部３から下方に連成された排水管部９とを備えており、このドレイン本体２が後述するＦＲＰ防水層１５との密着性に優れた硬質塩化ビニル系樹脂の射出成形によって形成されている。また、防水層押え４とストレーナ５は、鋳鉄，アルミニウム合金，ステンレス，ステンレス鋳鋼等の金属製となっている。このように施工完了状態において目視される防水層押え４とストレーナ５を従来と同じ材質とすることにより、見る者が違和感を抱くことがなく、また、従来と同じ設備及び材料を使用して製造し得るようにしている。   The roof drain 1A includes a drain main body 2 embedded on the floor f, a waterproof layer presser 4 fixed on the flange 3 of the drain main unit 2 via screw rods 6 and nuts 7, and the waterproof layer presser 4 And a strainer 5 fixed with screws 8. The drain main body 2 includes a circular saucer-shaped flange portion 3 and a drain pipe portion 9 coupled downward from the flange portion 3, and the drain main body 2 adheres to an FRP waterproof layer 15 described later. It is formed by injection molding of an excellent hard vinyl chloride resin. The waterproof layer presser 4 and the strainer 5 are made of metal such as cast iron, aluminum alloy, stainless steel, and cast stainless steel. In this way, the waterproof layer presser 4 and the strainer 5 that are visually observed in the construction completion state are made of the same material as before, so that the viewer does not feel uncomfortable and is manufactured using the same equipment and materials as before. I am trying to get it.

前記ドレイン本体２を構成する塩化ビニル系樹脂としては、硬質の塩化ビニル樹脂の他、該塩化ビニル樹脂にポリエチレン樹脂，ポリプロピレン樹脂，エチレン−酢酸ビニル共重合樹脂，アクリル系樹脂，ウレタン樹脂，ポリエステル系樹脂等の他の熱可塑性合成樹脂を一種類以上混合した樹脂、或いはエチレン−塩化ビニル共重合樹脂、酢酸ビニル−塩化ビニル共重合樹脂、ウレタン−塩化ビニル共重合樹脂等の塩化ビニル系共重合樹脂等が好適に用いられる。   As the vinyl chloride resin constituting the drain body 2, in addition to the hard vinyl chloride resin, the vinyl chloride resin is made of polyethylene resin, polypropylene resin, ethylene-vinyl acetate copolymer resin, acrylic resin, urethane resin, polyester resin. Resins in which one or more other thermoplastic synthetic resins are mixed, or vinyl chloride copolymer resins such as ethylene-vinyl chloride copolymer resins, vinyl acetate-vinyl chloride copolymer resins, urethane-vinyl chloride copolymer resins Etc. are preferably used.

上記のような塩化ビニル系樹脂製のドレイン本体２を、コンクリートの打込施工によって床ｆ上に埋設した状態で、該床ｆ及び鍔部３の表面に亘ってＦＲＰ防水層１５が形成される。該ＦＲＰ防水層１５は、ＦＲＰ防水工法によって形成されるものであって、床面ｆ上に必要に応じて下地調整用のプライマーを塗布した後、図２に示すように、床ｆ及び鍔部３の表面３’に亘って第一の樹脂液（不飽和ポリエステル樹脂）１０を塗布して、ガラス繊維マット１１を敷設し、さらに該マット１１に第二の樹脂液（不飽和ポリエステル樹脂）１２を塗布して含浸させ、空気を脱泡して硬化させることにより、主なる防水層１３を形成した後、該防水層１３上にトップコート層として着色した第三の樹脂液（不飽和ポリエステル樹脂）１４を塗布し、硬化させることにより仕上げられている。尚、主なる防水層１３を二層以上設けることにより、ＦＲＰ防水層１５をより厚くすることも可能である。   The FRP waterproof layer 15 is formed over the floor f and the surface of the flange 3 in a state where the drain main body 2 made of vinyl chloride resin as described above is embedded on the floor f by a concrete driving operation. . The FRP waterproofing layer 15 is formed by the FRP waterproofing method, and after applying a primer for adjusting the base on the floor surface f as required, as shown in FIG. The first resin liquid (unsaturated polyester resin) 10 is applied over the surface 3 ′ of 3, a glass fiber mat 11 is laid, and a second resin liquid (unsaturated polyester resin) 12 is further applied to the mat 11. After the main waterproof layer 13 is formed by applying and impregnating, and defoaming and curing the air, a third resin liquid (unsaturated polyester resin) colored as a top coat layer on the waterproof layer 13 is formed. ) 14 is applied and cured. Note that the FRP waterproof layer 15 can be made thicker by providing two or more main waterproof layers 13.

上記のようなＦＲＰ防水層１５の施工において、ドレイン本体２が、ＦＲＰ防水層１５を構成する樹脂液（不飽和ポリエステル樹脂）との密着性に優れた塩化ビニル系樹脂製であることにより、ＦＲＰ防水層１５を構成する樹脂液と、該樹脂液が塗布される鍔部３の表面３’との密着性がよく、ＦＲＰ防水工法で形成されるＦＲＰ防水層１５の端縁１５’を鍔部３の表面３’に強固に被着させることができる。   In the construction of the FRP waterproof layer 15 as described above, the drain main body 2 is made of a vinyl chloride resin excellent in adhesiveness with the resin liquid (unsaturated polyester resin) constituting the FRP waterproof layer 15. Adhesiveness between the resin liquid constituting the waterproof layer 15 and the surface 3 ′ of the flange 3 to which the resin liquid is applied is good, and the edge 15 ′ of the FRP waterproof layer 15 formed by the FRP waterproofing method is used as the flange. 3 can be firmly attached to the surface 3 '.

然る後、鍔部３に被着されたＦＲＰ防水層１５の端縁１５’に防水層押え４を乗載した状態で、ナット７を緊締することにより、鍔部３と防水層押え４とでＦＲＰ防水層１５の端縁１５’を挟持させる。そして、該防水層押え４にビス８でストレーナ５を固定し、また、排水管部９の下部に通水管１６を接続することで施工が完了する。   After that, with the waterproof layer presser 4 mounted on the edge 15 ′ of the FRP waterproof layer 15 attached to the flange part 3, the nut 7 is tightened to tighten the flange part 3 and the waterproof layer presser 4. Thus, the edge 15 ′ of the FRP waterproof layer 15 is clamped. Then, the strainer 5 is fixed to the waterproof layer presser 4 with screws 8, and the water pipe 16 is connected to the lower part of the drain pipe part 9 to complete the construction.

図３は、本発明に係るルーフドレインの第二実施例を示し、この第二実施例は、本発明を横引き排水用のルーフドレイン１Ｂに適用したものである。   FIG. 3 shows a second embodiment of the roof drain according to the present invention. In the second embodiment, the present invention is applied to a roof drain 1B for horizontal drainage.

ルーフドレイン１Ｂは、床ｆと立上り壁ｆ’とが交叉する入隅部に埋設されるドレイン本体２と、該ドレイン本体２の鍔部３に螺子杆６及びナット７を介して固定される防水層押え４と、該防水層押え４にビス８で固定されるストレーナ５とにより構成されている。前記ドレイン本体２は、断面Ｌ形の鍔部３と該鍔部３から後方に連成された排水管部９とを備えており、このドレイン本体２が上述したＦＲＰ防水層１５との密着性に優れた硬質塩化ビニル系樹脂の射出成形によって形成されている。また、防水層押え４とストレーナ５は、第一実施例と同様に、鋳鉄，アルミニウム合金，ステンレス，ステンレス鋳鋼等の金属製となっている。   The roof drain 1B includes a drain main body 2 embedded in a corner where the floor f and the rising wall f ′ intersect, and a waterproof body fixed to the flange 3 of the drain main body 2 via a screw rod 6 and a nut 7. A layer presser 4 and a strainer 5 fixed to the waterproof layer presser 4 with screws 8 are configured. The drain main body 2 includes a flange portion 3 having an L-shaped cross section and a drain pipe portion 9 coupled to the rear from the flange portion 3, and the drain main body 2 adheres to the FRP waterproof layer 15 described above. It is formed by injection molding of an excellent hard vinyl chloride resin. Further, the waterproof layer presser 4 and the strainer 5 are made of metal such as cast iron, aluminum alloy, stainless steel, and stainless cast steel, as in the first embodiment.

上記のような塩化ビニル系樹脂製のドレイン本体２を、コンクリートの打込施工によって床ｆと立上り壁ｆ’とが交叉する入隅部に埋設した状態で、該床ｆ及び立上り壁ｆ’と鍔部３の表面に亘ってＦＲＰ防水層１５が形成される。該ＦＲＰ防水層１５は、上述したＦＲＰ防水工法によって形成されるものであって、床面ｆ及び立上り壁ｆ’上に必要に応じて下地調整用のプライマーを塗布した後、図２に示すように、床ｆ及び立上り壁ｆ’と鍔部３の表面３’に亘って第一の樹脂液（不飽和ポリエステル樹脂）１０を塗布して、ガラス繊維マット１１を敷設し、さらに該マット１１に第二の樹脂液（不飽和ポリエステル樹脂）１２を塗布して含浸させ、空気を脱泡して硬化させることにより、主なる防水層１３を形成した後、該防水層１３上にトップコート層として着色した第三の樹脂液（不飽和ポリエステル樹脂）１４を塗布し、硬化させることにより仕上げられる。尚、この場合にあっても、主なる防水層１３を二層以上設けることにより、ＦＲＰ防水層１５をより厚くすることが可能である。   With the drain main body 2 made of vinyl chloride resin as described above embedded in the corner where the floor f and the rising wall f ′ intersect by concrete placement, the floor f and the rising wall f ′ An FRP waterproof layer 15 is formed over the surface of the flange 3. The FRP waterproofing layer 15 is formed by the above-described FRP waterproofing method, and after applying a primer for adjusting the base on the floor surface f and the rising wall f ′ as necessary, as shown in FIG. The first resin liquid (unsaturated polyester resin) 10 is applied to the floor f and the rising wall f ′ and the surface 3 ′ of the flange 3, and a glass fiber mat 11 is laid. After forming the main waterproof layer 13 by applying and impregnating the second resin liquid (unsaturated polyester resin) 12 and defoaming and curing the air, a top coat layer is formed on the waterproof layer 13. A colored third resin liquid (unsaturated polyester resin) 14 is applied and cured. Even in this case, it is possible to make the FRP waterproof layer 15 thicker by providing two or more main waterproof layers 13.

上記のようなＦＲＰ防水層１５の施工において、ドレイン本体２が、ＦＲＰ防水層１５を構成する樹脂液（不飽和ポリエステル樹脂）との密着性に優れた塩化ビニル系樹脂製であることにより、ＦＲＰ防水層１５を構成する樹脂液と、該樹脂液が塗布される鍔部３の表面３’との密着性がよく、ＦＲＰ防水工法で形成されるＦＲＰ防水層１５の端縁１５’を鍔部３の表面３’に強固に被着させることができる。   In the construction of the FRP waterproof layer 15 as described above, the drain main body 2 is made of a vinyl chloride resin excellent in adhesiveness with the resin liquid (unsaturated polyester resin) constituting the FRP waterproof layer 15. Adhesiveness between the resin liquid constituting the waterproof layer 15 and the surface 3 ′ of the flange 3 to which the resin liquid is applied is good, and the edge 15 ′ of the FRP waterproof layer 15 formed by the FRP waterproofing method is used as the flange. 3 can be firmly attached to the surface 3 '.

このように、本発明にあっては、ドレイン本体２が、ＦＲＰ防水層１５との密着性に優れた塩化ビニル系樹脂製であるので、ＦＲＰ防水工法で形成されるＦＲＰ防水層１５の端縁１５’を鍔部３の表面３’に強固に被着することができる。これにより、従来のように、塗装の剥離作業やサンドペーパー等による粗面形成作業を行う必要がないため、施工能率を向上させることができる。また、塩化ビニルのコーティングを金属製のドレイン本体に施す場合に比して、手間と時間が掛からず、生産コストを低減することができる。   Thus, in the present invention, since the drain body 2 is made of a vinyl chloride resin having excellent adhesion to the FRP waterproof layer 15, the edge of the FRP waterproof layer 15 formed by the FRP waterproof method is used. 15 'can be firmly attached to the surface 3' of the flange 3. Thereby, since it is not necessary to perform the peeling operation | work of coating or the rough surface formation operation | work by sandpaper etc. conventionally, construction efficiency can be improved. Further, compared to the case where the vinyl chloride coating is applied to the metal drain main body, labor and time are not required, and the production cost can be reduced.

本発明にかかるルーフドレイン１Ａ，１Ｂは、ＦＲＰ防水工法で形成されるＦＲＰ防水層１５以外に、塩化ビニルシート防水層の施工にも好適に用いられ得る。   The roof drains 1A and 1B according to the present invention can be suitably used for the construction of a vinyl chloride sheet waterproof layer in addition to the FRP waterproof layer 15 formed by the FRP waterproof method.

第一実施例にかかる縦引き排水用のルーフドレイン１Ａの施工状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the construction state of the roof drain 1A for the vertical drainage concerning a 1st Example. ＦＲＰ防水層１５の構成を示す縦断面図である。2 is a longitudinal sectional view showing a configuration of an FRP waterproof layer 15. FIG. 第二実施例にかかる横引き排水用のルーフドレイン１Ｂの施工状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the construction state of the roof drain 1B for the horizontal drainage concerning a 2nd Example. 従来構成の施工状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the construction state of a conventional structure.

符号の説明Explanation of symbols

１Ａ，１Ｂ ルーフドレイン
２ ドレイン本体
３ 鍔部
３’表面
９ 排水管部
１５ ＦＲＰ防水層
1A, 1B Roof drain 2 Drain body 3 Gutter part 3 'surface 9 Drain pipe part 15 FRP waterproofing layer

Claims (1)

鍔部と該鍔部に連成された排水管部とを備えたドレイン本体の、その鍔部の表面にＦＲＰ防水層が被着されるものであって、
前記ドレイン本体が、ＦＲＰ防水層との密着性に優れた塩化ビニル系樹脂製であることを特徴とするルーフドレイン。
A drain main body provided with a collar part and a drain pipe part coupled to the collar part, and an FRP waterproof layer is attached to the surface of the collar part,
A roof drain characterized in that the drain body is made of a vinyl chloride resin having excellent adhesion to the FRP waterproof layer.
JP2004296454A 2004-10-08 2004-10-08 Roof drain Expired - Fee Related JP4436743B2 (en)

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Application Number Priority Date Filing Date Title
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JP2006104892A true JP2006104892A (en) 2006-04-20
JP4436743B2 JP4436743B2 (en) 2010-03-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008127846A (en) * 2006-11-21 2008-06-05 Mitsui Home Co Ltd Overflow pipe and overflow draining structure
JP2015045157A (en) * 2013-08-28 2015-03-12 多摩防水技研株式会社 Waterproof structure of drain

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008127846A (en) * 2006-11-21 2008-06-05 Mitsui Home Co Ltd Overflow pipe and overflow draining structure
JP2015045157A (en) * 2013-08-28 2015-03-12 多摩防水技研株式会社 Waterproof structure of drain

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