JP5604281B2

JP5604281B2 - Water-return structure of extruded cement board

Info

Publication number: JP5604281B2
Application number: JP2010275641A
Authority: JP
Inventors: 泰三中村; 健司柏葉; 良治田中; 真横川; 景子佐藤
Original assignee: Toda Corp
Current assignee: Toda Corp
Priority date: 2010-12-10
Filing date: 2010-12-10
Publication date: 2014-10-08
Anticipated expiration: 2030-12-10
Also published as: JP2012122301A

Description

本発明は、押出成形セメント板の水返し構造に関するものである。 The present invention relates to a water return structure of an extruded cement board.

従来、押出成形セメント板（以下、ＥＣＰということもある）を使用した縦張り工法による建物の構造において、サッシ用開口部の下枠の排水経路の確保に関しては、例えば、図４乃至図５に示すように、サッシの下枠となる押出成形セメント板１のリブ部１ａに、切欠き部１ｂを設けている。該切欠き部１ｂは、押出成形セメント板１の成形時に一体にして設けることができないので、現場でのサイト等で加工するものである。また、押出成形セメント板間の横目地防水構造においても、一例として図５に示すように、上下の押出成形セメント板１，１の間にシーリング材２を充填して塞ぎ、内側の水返し板３の垂下部を切欠き部１ｂの中に延設して水の浸入を防ぎ、通しアングル４の下にはロックウール５およびガスケット６が配設されている、このような防水構造が知られている（特許文献１参照）。 Conventionally, in the structure of a building by a vertical stretching method using an extrusion-molded cement board (hereinafter, also referred to as ECP), regarding the securing of the drainage path of the lower frame of the sash opening, for example, FIG. 4 to FIG. As shown, the notched portion 1b is provided in the rib portion 1a of the extrusion-molded cement board 1 that becomes the lower frame of the sash. Since the notch 1b cannot be provided integrally when the extruded cement board 1 is formed, it is processed at a site or the like at the site. Further, in the horizontal joint waterproof structure between the extruded cement boards, as shown in FIG. 5 as an example, the sealing material 2 is filled and closed between the upper and lower extruded cement boards 1 and 1, and the inner water return board is filled. Such a waterproof structure is known in which the hanging portion 3 is extended into the cutout portion 1b to prevent water from entering, and the lock wool 5 and the gasket 6 are disposed below the through angle 4. (See Patent Document 1).

特開２００３−３４３０２３号公報JP 2003-343023 A

しかし、従来の押出成形セメント板の水返し構造においては、押出成形セメント板１のリブ部１ａに、適宜大きさの切欠き部１ｂを形成するために、ブレード等で切断して加工する手間が掛かり、その加工において発生する屑の処分が発生し、更には、屑材が切欠き部１ｂに付着したまま建込みされて、その屑材が押出成形セメント板１の空洞部に落下した場合には、屑材を撤去することが困難となる。本発明に係る押出成形セメント板の水返し構造は、このような課題を解決するために提案されたものである。 However, in the conventional water-repellent structure of the extrusion-molded cement plate, in order to form the notch portion 1b having an appropriate size in the rib portion 1a of the extrusion-molded cement plate 1, there is a trouble of cutting and processing with a blade or the like. When the scrap generated in the processing is disposed, and further, the scrap material is installed while being attached to the notch portion 1b, and the scrap material falls into the cavity portion of the extruded cement board 1 Makes it difficult to remove the waste material. The water return structure of the extrusion-molded cement board according to the present invention has been proposed in order to solve such problems.

本発明に係る押出成形セメント板の水返し構造の上記課題を解決して目的を達成するための要旨は、押出成形セメント板のリブ部に、該リブ部を跨ぐ大きさのシール材と、該シール材を前記リブ部に挟んで押さえる割ピンとで、前記リブの上面に前記シール材の内面を密着させて載置して水返し部を形成したことである。 The gist for achieving the object by solving the above problems of the water return structure of an extruded cement board according to the present invention is to provide a sealing material having a size straddling the rib part on the rib part of the extruded cement board, and The water return portion is formed by placing the sealing material with the inner surface of the sealing material in close contact with the upper surface of the rib with a split pin that holds and holds the sealing material between the rib portions.

また、前記押出成形セメント板のリブ部の上面に、前記リブ部の幅に合わせた水返し用のシール材を接着剤で貼着し、水返し部を形成したことであり、更に、前記シール材は、ゴム，合成樹脂，発泡材のいずれか一つであることを含むものである。 Also, a water return sealing material matched to the width of the rib portion is attached to the upper surface of the rib portion of the extruded cement plate with an adhesive to form a water return portion, and the seal The material includes any one of rubber, synthetic resin, and foam material.

本発明の押出成形セメント板の水返し構造によれば、押出成形セメント板のリブ部を切断することなく、水返し部を形成するので、現場での切断加工作業が無くなり、屑の発生が防止されて、手間の掛からない水返し部の施工となる。更に、接着剤でシール材を貼着するだけで施工できるようになり、簡易な作業で熟練も必要なく、押出成形セメント板施工者でも、サッシ施工者でも短時間で形成できるので、生産性が向上し工程の短縮となる、と言う優れた効果を奏するものである。 According to the water return structure of the extruded cement board of the present invention, the water return part is formed without cutting the rib part of the extruded cement board, so there is no cutting work at the site and the generation of waste is prevented. Thus, the construction of the water return portion that does not require much labor is required. Furthermore, it becomes possible to perform construction simply by sticking a sealing material with an adhesive, and it is a simple work that does not require skill, and it can be formed in a short time by both an extruded cement board installer and a sash installer. It has an excellent effect of improving and shortening the process.

本発明に係る押出成形セメント板１の水返し構造を示す縦断面図である。It is a longitudinal cross-sectional view which shows the water return structure of the extrusion-molded cement board 1 which concerns on this invention. 同本発明の押出成形セメント板１の水返し構造の拡大斜視図である。It is an expansion perspective view of the water return structure of the extrusion-molded cement board 1 of the same invention. 本発明に係る第２実施例の拡大斜視図である。It is an expansion perspective view of 2nd Example which concerns on this invention. 従来例に係る押出成形セメント板１の水返し構造の縦断面図（Ａ）と、その一部拡大斜視図（Ｂ）とである。It is the longitudinal cross-sectional view (A) of the water return structure of the extrusion-molded cement board 1 which concerns on a prior art example, and the one part enlarged perspective view (B). 従来例に係る押出成形セメント板１の横目地における水返し構造を示す縦断面図である。It is a longitudinal cross-sectional view which shows the water return structure in the horizontal joint of the extrusion-molded cement board 1 which concerns on a prior art example.

本発明に係る押出成形セメント板１の水返し構造は、図１に示すように、前記押出成形セメント板１のリブ部１ｂに、シール材８を設けた構造として、切欠き部を設けないようにしたものである。 As shown in FIG. 1, the water return structure of the extrusion-molded cement board 1 according to the present invention has a structure in which a sealing material 8 is provided on the rib part 1 b of the extrusion-molded cement board 1 so that notches are not provided. It is a thing.

本発明に係る押出成形セメント板１の水返し構造は、図１に示すように、押出成形セメント板１のリブ部１ａに、該リブ部１ａを跨ぐ大きさのシール材８と、該シール材８を前記リブ部１ａに挟んで押さえる割ピン９とで、前記リブ部１ａの上面に前記シール材８の内面を密着させて載置して水返し部を形成したものである。 As shown in FIG. 1, the water return structure of the extrusion-molded cement board 1 according to the present invention has a rib material 1 a of the extrusion-molded cement board 1, a seal material 8 having a size straddling the rib part 1 a, and the seal material With a split pin 9 that sandwiches and holds 8 between the rib portions 1a, the inner surface of the sealing material 8 is placed in close contact with the upper surface of the rib portion 1a to form a water return portion.

前記シール材８は、コ字型で内側の幅を前記リブ部１ａの厚さに合わせてある。また、このシール材８の奥行き長さと耐え長さはいずれも任意であり適宜に設定する。 The sealing material 8 is U-shaped and has an inner width that matches the thickness of the rib portion 1a. Further, the depth length and the endurance length of the sealing material 8 are both arbitrary and appropriately set.

前記割ピン９は、シール材８を前記リブ部１ａに固定するものである。よって、その弾性によりコ字型の両足部分の先端部は、閉じると前記リブ部１ａの厚さよりも狭い間隔になる。なお、この割ピン９で固定しているが、シール材８の内側面に接着剤を併用し固定しても良い。 The split pin 9 fixes the sealing material 8 to the rib portion 1a. Therefore, due to its elasticity, the ends of the U-shaped leg portions are closer to each other than the thickness of the rib portion 1a when closed. In addition, although it fixes with this split pin 9, you may fix together with an adhesive agent to the inner surface of the sealing material 8. FIG.

このようにして、図１乃至図２に示すように、アルミサッシ用の開口部を形成する際に、押出成形セメント板１に、予め前記シール材８と割ピン９でリブ部１ａの上部に固定して水返し部を形成する。そして、この押出成形セメント板１を建物のサッシ下枠として建て込むものである。その後、アルミサッシ７を開口部に建て込んで、サッシ下部と押出成形セメント板１との間にシーリング材１０を充填施工する。 Thus, as shown in FIGS. 1 and 2, when forming the opening for the aluminum sash, the extruded cement board 1 is preliminarily formed on the upper portion of the rib portion 1a with the sealing material 8 and the split pin 9. Fix and form a water return section. And this extrusion-molded cement board 1 is built as a sash lower frame of a building. Thereafter, the aluminum sash 7 is built in the opening, and the sealing material 10 is filled between the lower portion of the sash and the extruded cement board 1.

この水返し構造により、外部から浸入した水は、押出成形セメント板１のリブ部１ａの上面から内部へと流れても、途中のシール材８に遮られて押出成形セメント板１のリブ部１ａの壁面を伝わって、当該押出成形セメント板１の空間部から下に流れていく。その後、水は、外部へと排出される。 Even if the water that has entered from the outside flows into the inside from the upper surface of the rib portion 1a of the extrusion-molded cement plate 1 by this water return structure, it is blocked by the sealing material 8 in the middle, and the rib portion 1a of the extrusion-molded cement plate 1 And flows downward from the space of the extruded cement plate 1. Thereafter, the water is discharged to the outside.

本発明に係る第２実施例は、図３に示すように、前記押出成形セメント板１のリブ部１ａの上面に、前記リブ部１ａの幅に合わせた水返し用のシール材８ａを接着剤１１で貼着し、水返し部を形成したものである。前記シール材８ａは、ゴム，合成樹脂，発泡材のいずれか一つである。前記接着剤１１は、例えば、エポキシ樹脂等である。前記シール材８ａの形状は、少なくともリブ部１ａの幅に等しい矩形体で示しているが、コ字形にしても良い。 In the second embodiment of the present invention, as shown in FIG. 3, an adhesive is provided on the upper surface of the rib portion 1a of the extruded cement board 1 for returning water in accordance with the width of the rib portion 1a. 11 and a water return portion is formed. The sealing material 8a is any one of rubber, synthetic resin, and foam material. The adhesive 11 is, for example, an epoxy resin. Although the shape of the sealing material 8a is shown as a rectangular body at least equal to the width of the rib portion 1a, it may be U-shaped.

このように、接着剤１１によってシール材８ａを固着する方法でも良い。これにより、外部から浸入した水が、前記シール材８ａで内部への浸入が阻止され、押出成形セメント板１の空間部の下へと導かれていく。 Thus, a method of fixing the sealing material 8a with the adhesive 11 may be used. As a result, the water that has entered from the outside is prevented from entering the inside by the sealing material 8a, and is guided below the space portion of the extruded cement board 1.

本発明に係る押出成形セメント板の水返し構造は、サッシ枠の下枠においてのみ適用されるものでなく、横目地部にも適用できるものである。 The water return structure of the extrusion-molded cement board according to the present invention can be applied not only to the lower frame of the sash frame but also to the horizontal joint.

１押出成形セメント板、１ａリブ部、
１ｂ切欠き部、
２シーリング材、
３水返し板、
４通しアングル、
５ロックウール、
６ガスケット、
７アルミサッシ、
８シール材、８ａシール材、
９割ピン、
１０シーリング材、
１１接着剤。 1 Extruded cement board, 1a Rib part,
1b Notch,
2 Sealing material,
3 Water return plate,
4 through angle,
5 Rock wool,
6 Gasket,
7 Aluminum sash,
8 sealing material, 8a sealing material,
90% pin,
10 Sealing material,
11 Adhesive.

Claims

With the rib part of the extrusion-molded cement board, a sealing material having a size straddling the rib part, and a split pin for holding the sealing material between the rib parts, the inner surface of the sealing material is adhered to the upper surface of the rib. That it was placed to form a water return part,
A water-return structure of an extruded cement board characterized by

Adhering a sealing material for water return in accordance with the width of the rib part on the upper surface of the rib part of the extruded cement plate, and forming a water return part,
A water-return structure of an extruded cement board characterized by

The sealing material should be one of rubber, synthetic resin and foam material,
The water reversing structure of an extrusion-molded cement board according to any one of claims 1 to 2.