JP2004353198A

JP2004353198A - Raindrop preventive structure

Info

Publication number: JP2004353198A
Application number: JP2003149607A
Authority: JP
Inventors: Hiroshi Ito; 伊藤　　博
Original assignee: Nichiha Corp
Current assignee: Nichiha Corp
Priority date: 2003-05-27
Filing date: 2003-05-27
Publication date: 2004-12-16

Abstract

<P>PROBLEM TO BE SOLVED: To provide a raindrop preventive structure which facilitates prevention of raindrops to outer wall surfaces in the vicinity of side edges of a sill of an opening, and has excellent external design. <P>SOLUTION: The raindrop preventive structure 1 prevents raindrops flowing in the vicinity of the side edges of the sill 21 of the building opening 2 from dropping via outer wall surfaces 111, 112 on a lower side of the opening 2. The raindrop preventive structure 1 is formed by arranging a draining member 4 on the lower side of the sill 21 of the opening 2 so as to be protruded frontward from the outer wall surfaces 111, 112. The draining member 4 has an abutting portion 41 abutting on the outer wall surfaces 111, 112, and a guide portion 42 for guiding rainwater so as to flow therethrough. The guide portion 42 has an upper surface portion 43 inclined in a lower frontward direction, a front surface portion 44 formed in an almost vertical direction, a bent lower edge 45 formed at a lower edge 45 of the front surface portion 44 in a manner being bent in a diagonally lower frontward direction, and a curved surface portion 46 smoothly connecting between the upper surface portion 43 and the front surface portion 44. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は，建物の窓等の開口部の下辺側端部付近に溜まった雨水が該開口部の下側の外壁表面を伝って垂下することを防止するための雨垂れ防止構造に関する。
【０００２】
【従来の技術】
図６，図７に示すごとく，窓等の開口部９２を有する建物においては，その開口部９２の下辺９２１の左右側端部付近に上方より流下してきた雨水が溜まることがある。この雨水は，下方の外壁表面９１１，９１２を伝って流下する。即ち，雨垂れが生ずる。この外壁表面９１１，９１２における雨垂れは凍害発生の原因となり，外壁表面９１１，９１２の塗装が剥がれたり，外壁表面９１１，９１２に亀裂を生じたりするおそれがある。特に寒冷地においては，このような凍害発生のおそれが大きい。
【０００３】
かかる問題に対しては，特許文献１に開示された構造のように，開口部に配設するサッシを外壁表面から大きく突出させて施工する方法を取ることも考えられる。この場合には，雨水は上記サッシの前端から，外壁表面を伝うことなく落下するため，凍害の発生を防止することができる。
【０００４】
【特許文献１】
特許第２８５８２２２号公報（第１図）
【０００５】
【発明が解決しようとする課題】
しかしながら，上記開口部やサッシ等の構造によっては，上記のごとく外壁表面からサッシを大きく突出させて施工することが困難な場合がある。また，リフォームの場合には，既存サッシが取り付けてある既存開口部の前方に，新たな外壁開口部を形成することとなるため，サッシを新たな外壁開口部よりも前方に突出させることはできない。
また，サッシを大きく突出させると，建物の外観意匠性を損ねるおそれがある。
【０００６】
本発明は，かかる従来の問題点に鑑みてなされたもので，開口部の下辺の側端部付近における外壁表面への雨垂れを容易に防止することができる外観意匠性に優れた雨垂れ防止構造を提供しようとするものである。
【０００７】
【課題の解決手段】
本発明は，建物の開口部の下辺の側端部付近に流れてきた雨水が該開口部の下側の外壁表面を伝って垂下することを防止するための雨垂れ防止構造であって，
該雨垂れ防止構造は，上記開口部の下辺の下側に上記外壁表面より前方へ突出させた水切部材を配設してなり，
該水切部材は，上記外壁表面に当接する当接部と，上記雨水を伝わせるガイド部とを有し，
該ガイド部は，前方下方へ傾斜した上面部と，略鉛直方向に形成された前面部と，該前面部の下端において斜め前方下方へ屈曲した屈曲下端部と，上記上面部と前面部とを滑らかに連結する曲面部とを有することを特徴とする雨垂れ防止構造にある（請求項１）。
【０００８】
次に，本発明の作用効果につき説明する。
上記雨垂れ防止構造は，開口部の下辺の下側に上記水切部材を配設してなる。これにより，上方より上記開口部の下辺の側端部付近に流下してきた雨水は，必ず上記水切部材の上に落下し，外壁表面の前方へ導かれ排水される。そのため，開口部の下側の外壁表面における雨垂れを確実に防止することができる。
【０００９】
また，上記水切部材は，上記上面部，前面部，屈曲下端部，曲面部を有するガイド部を形成してなる。そして，該ガイド部における上面部に，上記開口部側端部付近に流れてきた雨水が落下する。
上記上面部は前方下方へ傾斜しているため，上面部に落下した雨水は前方下方へ導かれることとなる。また，上記上面部の前端においては，上記曲面部を介して前面部が形成されている。そのため，上記上面部の前端へ導かれた雨水は，上記曲面部を伝って滑らかに前面部に達し，該前面部を伝って下方へ導かれる。
【００１０】
また，該前面部の下端に形成された屈曲下端部は，斜め前方下方へ屈曲しているため，上記前面部を伝って落下してきた雨水は，上記屈曲下端部によって斜め前方下方へ弾かれるように排水される。それ故，雨水が外壁表面に付着することを確実に防ぐことができる。
これにより，開口部の下辺の側端部付近における外壁表面に雨垂れが生ずることを防止することができ，雨垂れを原因とする凍害の発生を確実に防止することができる。
【００１１】
また，上記水切部材は，例えば施工後の外壁表面にも取り付けることができるため，上記雨垂れ防止構造は容易に構築することができる。
また，上記水切部材は上記ガイド部に曲面部を有しているため，良好な水捌けと良好な外観意匠性を確保することができる。
【００１２】
以上のごとく，本発明によれば，開口部の下辺の側端部付近における外壁表面への雨垂れを容易に防止することができる外観意匠性に優れた雨垂れ防止構造を提供することができる。
【００１３】
【発明の実施の形態】
上記第１の発明（請求項１）において，上記開口部としては，例えば，窓，換気設備設置箇所等がある。また，上記外壁表面は，例えば窯業系外壁板によって構成される。
【００１４】
また，上記水切部材は，上記開口部の下辺の下側において，上記開口部の下辺の左端よりも左方の位置から，上記開口部の下辺の右端よりも右方の位置までにわたって配設されていることが好ましい（請求項２）。
この場合には，上記開口部付近に流れてきた雨水を確実に外壁表面の前方へ排水し，雨垂れを確実に防止することができる。また，上記水切部材が上記開口部に配設されるサッシ等と，外観上一体化し，外壁表面の良好な外観意匠性を確保することができる。
【００１５】
上記水切部材の上記開口部の下辺の左端及び右端からの左右への突出量は，雨垂れ防止効果と外観意匠性とを損なうことがない範囲で任意に設計可能であるが，例えば２０〜３０ｍｍ程度とすることにより，それらを充分に満足することができる。
【００１６】
また，上記水切部材は，上記外壁表面より３０ｍｍ以上前方へ突出していることが好ましい（請求項３）。
即ち，上記前面部の下端が上記外壁表面から３０ｍｍ以上前方に配されていることが好ましい。この場合には，雨垂れをより確実に防止することができる。
上記水切部材の外壁表面からの突出量が３０ｍｍ未満の場合には，上記水切部材を伝って落下した雨水が外壁表面へ付着することを確実に防ぐことが困難となるおそれがある。
なお，上記水切部材の外壁表面からの突出量の上限は，外観意匠性等を損なわない範囲で，任意に設計可能である。
【００１７】
また，上記水切部材は，上記当接部の下方部分に固定用突出片を設けると共に該固定用突出片にビス孔を穿設してなり，上記水切部材は，該ビス孔に挿通したビスによって上記外壁表面に固定されていることが好ましい（請求項４）。
この場合には，上記水切部材を容易に外壁表面に固定することができる。
また，上記ビス孔（ビス）は，上記屈曲下端部によって表面側から隠されて見えにくくなり，外観意匠性の低下を防ぐことができる。更に，上記固定用突出片へは雨水が伝わらないので，ビス孔から雨水が浸入するおそれもない。
【００１８】
また，上記水切部材は，上記ガイド部の左右側端部に，雨水を堰き止める堰板部を設けてなることが好ましい（請求項５）。
この場合には，上記ガイド部に落下した雨水が上記ガイド部の左右側端部から流下して外壁表面を伝うことを防ぐことができる。
【００１９】
【実施例】
（実施例１）
本発明の実施例にかかる雨垂れ防止構造につき，図１〜図４を用いて説明する。
本例の雨垂れ防止構造１は，特に，建物の開口部２の下辺２１の左右側端部付近に雨水が溜まり，開口部２の下側の外壁表面１１１，１１２を伝って垂下することを防止するための構造である。
【００２０】
該雨垂れ防止構造１は，図１〜図３に示すごとく，上記開口部２の下辺２１の下側に上記外壁表面１１１，１１２より前方へ突出させた水切部材４を配設してなる。
該水切部材４は，図１，図４に示すごとく，上記外壁表面１１１，１１２に当接する当接部４１と，上記雨水を伝わせるガイド部４２とを有する。
該ガイド部４２は，前方下方へ傾斜した上面部４３と，略鉛直方向に形成された前面部４４と，該前面部４４の下端において斜め前方下方へ屈曲した屈曲下端部４５と，上記上面部４３と前面部４４とを滑らかに連結する曲面部４６とを有する。
【００２１】
また，図２に示すごとく，上記水切部材４は，上記開口部２の下辺２１の下側において，上記開口部２の下辺２１の左端より左方２０〜３０ｍｍの位置から，上記開口部２の下辺２１の右端より右方２０〜３０ｍｍの位置までにわたって配設されている。
また，上記水切部材４は，上記外壁表面１１１，１１２より約３０ｍｍ前方へ突出している。即ち，上記前面部４４の下端が上記外壁表面１１１，１１２から約３０ｍｍ前方に配されている。
【００２２】
また，図１，図４に示すごとく，上記水切部材４は，上記当接部４１の下方部分に固定用突出片４７を設けると共に該固定用突出片４７にビス孔４７１を穿設してなる。そして，上記水切部材４は，該ビス孔４７１に挿通したビス１９によって上記外壁表面１１１，１１２に固定されている。
また，上記固定用突出片４７はその下端４７２が斜め後方へ向かうように傾斜した状態で形成されている。それ故，上記ビス１９は，斜め上方へ向かって，窯業系の外壁板１１に，或いは該外壁板１１を介してその下地材である胴縁１２にまでねじ込まれている。上記固定用突出片４７は外壁表面１１１，１１２に当接している。
また，図２，図３に示すごとく，上記水切部材４は，上記ガイド部４２の左右側端部に，雨水を堰き止める堰板部４８を設けてなる。
【００２３】
上記開口部２は図２に示すような窓であり，該開口部２には，サッシ３が建物の構造躯体１３に固定された状態で配設されている。また，上記開口部２の下辺２１の下側においては，図１に示すごとく，外壁板１１が下地材としての胴縁１２を介して構造躯体１３に固定されている。
そして，図１に示すごとく，上記サッシ３は，上記外壁板１１の上方に固定されている。上記サッシ３の前端は，外壁表面１１１，１１２よりも若干前方へ突出している。
【００２４】
図１に示すごとく，上記開口部２の下辺２１の下側，即ち上記外壁板１１の上端部における外壁表面１１１，１１２には，上記水切部材４が配設されている。該水切部材４と上記サッシ３の下端部との間には，防水のためのシーリング材１５が打設されている。
【００２５】
図１，図４に示すごとく，上記水切部材４は，アルミを押出成形してなる中空長尺体であり，その中空部４０は，上記上面部４３，曲面部４６，前面部４４と，後面部４９１，底面部４９２とによって形成されている。そして，上記上面部４３の下面側には，上記堰板部４８を取り付けるためのネジを螺合させるネジ孔４３１が形成されている。そして，個別に成形した堰板部４８を，水切部材４の本体の左右側端部にネジにより固定することにより，上記水切部材４が組み立てられている。
【００２６】
次に，本例の作用効果につき説明する。
上記雨垂れ防止構造１は，図１〜図３に示すごとく，開口部２の下辺２１の下側に上記水切部材４を配設してなる。これにより，上記開口部２の下辺２１の側端部付近に流れてきた雨水は，上記水切部材４の上に落下し，外壁表面１１１，１１２の前方下方へ導かれる。そのため，開口部２の下側の外壁表面１１１，１１２における雨垂れを確実に防止することができる。
【００２７】
また，上記水切部材４は，上記上面部４３，前面部４４，屈曲下端部４５，曲面部４６を有するガイド部４２を形成してなる。そして，該ガイド部４２における上面部４３に，上記開口部２の側辺を流下してくる雨水が落下する。
図１に示すごとく，上記上面部４３は前方下方へ傾斜しているため，上面部４３に落下した雨水は前方下方へ導かれることとなる。また，上記上面部４３の前端においては，上記曲面部４６を介して前面部４４が形成されている。そのため，上面部４２の前端へ導かれた雨水は，曲面部４６を伝って滑らかに前面部４４に達し，該前面部４４を伝って下方へ導かれる。
【００２８】
また，該前面部４４の下端に形成された屈曲下端部４５は，斜め前方下方へ屈曲しているため，上記前面部４４を伝って落下してきた雨水は，上記屈曲下端部４５によって斜め前方下方へ弾かれるように排水される。それ故，雨水が外壁表面１１１，１１２に付着することを確実に防ぐことができる。
これにより，外壁表面１１１，１１２に雨垂れが生ずることを防止することができ，雨垂れを原因とする凍害の発生を防止することができる。
【００２９】
また，上記水切部材４は，外壁施工後に外壁表面１１１，１１２に取り付けることができるため，上記雨垂れ防止構造１を容易に構築することができる。
また，上記水切部材４は上記ガイド部４２に曲面部４６を有しているため，良好な水捌けと，良好な外観意匠性を確保することができる。
【００３０】
また，図２に示すごとく，上記水切部材４は，開口部２の下辺２１の全長を超える範囲でその下側に配設されている。そのため，上記開口部２の側辺を伝って流下する雨水を確実に外壁表面１１１，１１２の前方下方へ排水し，雨垂れを確実に防止することができる。また，上記水切部材４が上記開口部２に配設されるサッシ３と，外観上一体化し，外壁表面１１１，１１２の良好な外観意匠性を確保することができる。
【００３１】
また，上記水切部材４は，上記外壁表面１１１，１１２より約３０ｍｍ前方へ突出しているため，雨垂れをより確実に防止することができる。
また，上記水切部材４は，上記当接部４１の下方部分に固定用突出片４７を設けると共に該固定用突出片４７にビス孔４７１を穿設してなる。そして，上記水切部材４は，該ビス孔４７１に挿通したビス１９によって上記外壁表面１１１，１１２に固定されている。そのため，上記水切部材４を容易に外壁表面１１１，１１２に固定することができる。
【００３２】
また，図２，図３に示すごとく，上記水切部材４は上記堰板部４８を設けてなるため，上記ガイド部４２に落下した雨水がガイド部４２の左右側端から流下して外壁表面１１１，１１２を伝うことを確実に防ぐことができる。
【００３３】
以上のごとく，本例によれば，開口部の下辺の側端部付近における外壁表面への雨垂れを容易に防止することができる外観意匠性に優れた雨垂れ防止構造を提供することができる。
【００３４】
（実施例２）
本例は，図５に示すごとく，水切部材４を，開口部２の下辺２１の左右側端部における下側に配設した雨垂れ防止構造１の例である。
その他は，実施例１と同様である。
この場合には，部材コストを下げ，雨垂れを効果的に防止することができる。即ち，上方より開口部２の下辺２１の側端部付近に流下してきた雨水は，上記水切部材４を使用することにより確実に排水されるので，効果的に雨垂れを防止することができる。
その他，実施例１と同様の作用効果を有する。
【００３５】
（実施例３）
本例は，リフォームした建物における開口部の下辺の下側に，水切部材を配設した雨垂れ防止構造の例である。
即ち，既存のサッシが取り付けてある既存の開口部の前方に，新たな外壁の開口部を形成し，その下側に上記水切部材を配設する。
その他は，実施例１と同様である。
【００３６】
リフォームの場合には，既存のサッシが取り付けてある既存の開口部の前方に，新たな外壁の開口部を形成するため，上記既存のサッシを新たな開口部よりも前方に突出させることができない。
それ故，上記水切部材を取り付けることにより，効果的に雨垂れを防止することができる。
その他，実施例１と同様の作用効果を有する。
【００３７】
【発明の効果】
以上のごとく，本発明によれば，開口部の下辺の側端部付近における外壁表面への雨垂れを容易に防止することができる外観意匠性に優れた雨垂れ防止構造を提供することができる。
【図面の簡単な説明】
【図１】実施例１における，雨垂れ防止構造の断面図。
【図２】実施例１における，雨垂れ防止構造の正面図。
【図３】実施例１における，開口部の下辺及び水切部材の左端部の斜視図。
【図４】実施例１における，水切部材の断面斜視図。
【図５】実施例２における，雨垂れ防止構造の正面図。
【図６】従来例における，雨垂れ防止構造の断面図。
【図７】従来例における，雨垂れ防止構造の正面図。
【符号の説明】
１．．．雨垂れ防止構造，
１１．．．外壁板，
１１１，１１２．．．外壁表面，
２．．．開口部，
２１．．．下辺，
３．．．サッシ，
４．．．水切部材，
４１．．．当接部，
４２．．．ガイド部，
４３．．．上面部，
４４．．．前面部，
４５．．．屈曲下端部，
４６．．．曲面部，
４７．．．固定用突出片，
４８．．．堰板部，[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rain dripping prevention structure for preventing rain water accumulated near a lower edge of an opening such as a window of a building from hanging along an outer wall surface below the opening.
[0002]
[Prior art]
As shown in FIGS. 6 and 7, in a building having an opening 92 such as a window, rainwater that has flowed down from above may accumulate near the left and right ends of the lower side 921 of the opening 92. The rainwater flows down along the lower outer wall surfaces 911 and 912. That is, rain dripping occurs. The dripping on the outer wall surfaces 911 and 912 may cause frost damage, and the coating of the outer wall surfaces 911 and 912 may be peeled off or the outer wall surfaces 911 and 912 may be cracked. Particularly in cold regions, there is a high possibility of such frost damage occurring.
[0003]
To solve such a problem, it is conceivable to adopt a method in which a sash provided in the opening is made to protrude greatly from the outer wall surface as in the structure disclosed in Patent Document 1. In this case, since the rainwater falls from the front end of the sash without traveling along the outer wall surface, it is possible to prevent frost damage.
[0004]
[Patent Document 1]
Japanese Patent No. 2858222 (FIG. 1)
[0005]
[Problems to be solved by the invention]
However, depending on the structure of the opening and the sash, it may be difficult to construct the sash so as to protrude greatly from the outer wall surface as described above. Also, in the case of renovation, a new outer wall opening is formed in front of the existing opening where the existing sash is attached, so that the sash cannot be projected forward from the new outer wall opening. .
In addition, if the sash is made to protrude significantly, there is a possibility that the external appearance of the building is impaired.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and provides a rain drooping prevention structure excellent in external appearance design that can easily prevent rain drooping on the outer wall surface near the lower side edge of the opening. It is what we are going to offer.
[0007]
[Means for solving the problem]
The present invention is a rainfall prevention structure for preventing rainwater flowing near a lower end of a lower side of an opening of a building from hanging along an outer wall surface below the opening,
The rain dripping prevention structure is provided with a drainage member projecting forward from the outer wall surface below the lower side of the opening.
The draining member has an abutting portion that contacts the outer wall surface, and a guide portion that transmits the rainwater.
The guide portion includes an upper surface portion inclined forward and downward, a front portion formed in a substantially vertical direction, a bent lower end portion bent obliquely forward and lower at a lower end of the front portion, and the upper surface portion and the front portion. And a curved surface portion that smoothly connects.
[0008]
Next, the operation and effect of the present invention will be described.
In the rainfall prevention structure, the drainage member is disposed below the lower side of the opening. As a result, the rainwater that has flowed down from above toward the vicinity of the lower side edge of the opening always falls on the draining member, is guided to the front of the outer wall surface, and is drained. Therefore, it is possible to reliably prevent raindrops on the outer wall surface below the opening.
[0009]
Further, the draining member is formed with a guide portion having the upper surface portion, the front surface portion, a bent lower end portion, and a curved surface portion. Then, the rainwater flowing near the opening side end portion falls on the upper surface portion of the guide portion.
Since the upper surface is inclined forward and downward, the rainwater that has fallen on the upper surface is guided downward and forward. At the front end of the upper surface, a front surface is formed via the curved surface. Therefore, the rainwater guided to the front end of the upper surface portion smoothly reaches the front surface portion along the curved surface portion, and is guided downward along the front surface portion.
[0010]
Further, since the bent lower end formed at the lower end of the front portion is bent obliquely forward and downward, rainwater falling along the front portion is repelled obliquely forward and downward by the bent lower end. Drained to Therefore, it is possible to reliably prevent rainwater from adhering to the outer wall surface.
As a result, it is possible to prevent raindrops from forming on the outer wall surface near the side edge of the lower side of the opening, and it is possible to reliably prevent frost damage caused by raindrops.
[0011]
Further, since the draining member can be attached to, for example, the outer wall surface after the construction, the rain drooping prevention structure can be easily constructed.
In addition, the draining member has a curved surface portion in the guide portion, so that good drainage and good external design can be ensured.
[0012]
As described above, according to the present invention, it is possible to provide a rain drooping prevention structure excellent in appearance design that can easily prevent rain drooping on the outer wall surface near the lower side edge of the opening.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
In the first invention (claim 1), the opening includes, for example, a window, a place where ventilation equipment is installed, and the like. The outer wall surface is constituted by, for example, a ceramic outer wall plate.
[0014]
The draining member is disposed below the lower side of the opening from a position on the left side of the lower end of the lower side of the opening to a position on the right side of the lower end of the lower side of the opening. (Claim 2).
In this case, the rainwater flowing near the opening can be reliably drained to the front of the outer wall surface, and raindrops can be reliably prevented. In addition, the draining member is externally integrated with a sash or the like provided in the opening, so that good external appearance design of the outer wall surface can be secured.
[0015]
The amount of protrusion of the drainer from the lower side of the opening to the left and right from the right and left ends can be arbitrarily designed within a range that does not impair the rain dripping prevention effect and the appearance design, but is, for example, about 20 to 30 mm. By doing so, they can be sufficiently satisfied.
[0016]
It is preferable that the draining member protrudes forward by 30 mm or more from the outer wall surface.
That is, it is preferable that the lower end of the front portion is disposed 30 mm or more forward from the outer wall surface. In this case, raindrops can be more reliably prevented.
If the amount of protrusion of the draining member from the outer wall surface is less than 30 mm, it may be difficult to reliably prevent rainwater falling along the draining member from adhering to the outer wall surface.
The upper limit of the amount of protrusion of the draining member from the outer wall surface can be arbitrarily designed as long as the external appearance and the like are not impaired.
[0017]
The draining member has a fixing protruding piece provided below the abutting portion and a screw hole formed in the fixing protruding piece. The draining member is provided with a screw inserted into the screw hole. It is preferable to be fixed to the outer wall surface (claim 4).
In this case, the drainage member can be easily fixed to the outer wall surface.
Further, the screw hole (screw) is hidden from the surface side by the bent lower end portion and is difficult to see, so that it is possible to prevent a decrease in appearance design. Furthermore, since rainwater does not reach the fixing protrusion, there is no danger of rainwater entering through the screw holes.
[0018]
Further, it is preferable that the draining member is provided with a dam plate for blocking rainwater at left and right end portions of the guide portion.
In this case, it is possible to prevent rainwater falling on the guide portion from flowing down from the left and right ends of the guide portion and traveling along the outer wall surface.
[0019]
【Example】
(Example 1)
A rain drooping prevention structure according to an embodiment of the present invention will be described with reference to FIGS.
The rain drooping prevention structure 1 of this example prevents rainwater from collecting in the vicinity of the left and right ends of the lower side 21 of the opening 2 of the building, and drooping down the outer wall surfaces 111 and 112 below the opening 2. It is a structure for doing.
[0020]
As shown in FIGS. 1 to 3, the rain dripping prevention structure 1 is provided with a draining member 4 that projects forward from the outer wall surfaces 111 and 112 below the lower side 21 of the opening 2.
As shown in FIGS. 1 and 4, the draining member 4 has a contact portion 41 that contacts the outer wall surfaces 111 and 112, and a guide portion 42 that transmits the rainwater.
The guide part 42 includes an upper surface part 43 inclined forward and downward, a front part 44 formed substantially vertically, a bent lower end part 45 bent obliquely forward and downward at the lower end of the front part 44, It has a curved surface portion 46 for smoothly connecting the front surface 43 and the front surface 43.
[0021]
As shown in FIG. 2, the draining member 4 is positioned below the lower side 21 of the opening 2 from a position 20 to 30 mm to the left from the left end of the lower side 21 of the opening 2. It is disposed from the right end of the lower side 21 to a position 20 to 30 mm to the right.
The draining member 4 protrudes forward by about 30 mm from the outer wall surfaces 111 and 112. That is, the lower end of the front portion 44 is disposed about 30 mm forward from the outer wall surfaces 111, 112.
[0022]
As shown in FIGS. 1 and 4, the draining member 4 is provided with a fixing protruding piece 47 below the abutting portion 41 and a screw hole 471 formed in the fixing protruding piece 47. . The draining member 4 is fixed to the outer wall surfaces 111 and 112 by screws 19 inserted into the screw holes 471.
The fixing projection 47 is formed such that its lower end 472 is inclined obliquely rearward. Therefore, the screw 19 is screwed obliquely upward to the ceramic outer wall plate 11 or through the outer wall plate 11 to the body edge 12 as a base material. The fixing projection 47 contacts the outer wall surfaces 111 and 112.
As shown in FIGS. 2 and 3, the draining member 4 is provided with a dam plate 48 for damping rainwater at left and right ends of the guide portion 42.
[0023]
The opening 2 is a window as shown in FIG. 2, and a sash 3 is disposed in the opening 2 in a state fixed to a structural frame 13 of a building. In addition, below the lower side 21 of the opening 2, as shown in FIG. 1, the outer wall plate 11 is fixed to the structural frame 13 via the rim 12 as a base material.
As shown in FIG. 1, the sash 3 is fixed above the outer wall plate 11. The front end of the sash 3 protrudes slightly forward from the outer wall surfaces 111 and 112.
[0024]
As shown in FIG. 1, the draining member 4 is disposed below the lower side 21 of the opening 2, that is, on the outer wall surfaces 111 and 112 at the upper end of the outer wall plate 11. A sealing material 15 for waterproofing is cast between the draining member 4 and the lower end of the sash 3.
[0025]
As shown in FIGS. 1 and 4, the draining member 4 is a hollow elongated body formed by extruding aluminum, and the hollow portion 40 has the upper surface portion 43, the curved surface portion 46, the front surface portion 44, and the rear portion. It is formed by a surface part 491 and a bottom part 492. A screw hole 431 for screwing a screw for attaching the weir plate portion 48 is formed on the lower surface side of the upper surface portion 43. The draining member 4 is assembled by fixing individually formed weir plate portions 48 to the left and right ends of the main body of the draining member 4 with screws.
[0026]
Next, the operation and effect of this embodiment will be described.
As shown in FIGS. 1 to 3, the dripping prevention structure 1 has the draining member 4 disposed below the lower side 21 of the opening 2. As a result, the rainwater flowing near the side edge of the lower side 21 of the opening 2 falls onto the draining member 4 and is guided downward and forward of the outer wall surfaces 111 and 112. Therefore, it is possible to reliably prevent raindrops on the outer wall surfaces 111 and 112 below the opening 2.
[0027]
The draining member 4 is formed with a guide portion 42 having the upper surface portion 43, the front surface portion 44, the bent lower end portion 45, and the curved surface portion 46. Then, rainwater flowing down the side of the opening 2 falls on the upper surface 43 of the guide portion 42.
As shown in FIG. 1, since the upper surface 43 is inclined downward and forward, the rainwater that has fallen on the upper surface 43 is guided downward and forward. At the front end of the upper surface 43, a front surface 44 is formed via the curved surface 46. Therefore, the rainwater guided to the front end of the upper surface portion 42 smoothly reaches the front surface portion 44 along the curved surface portion 46 and is guided downward along the front surface portion 44.
[0028]
Further, since the bent lower end 45 formed at the lower end of the front part 44 is bent obliquely forward and downward, rainwater that has fallen along the front part 44 is obliquely forward and downward by the bent lower end 45. It is drained to be flipped to. Therefore, it is possible to reliably prevent rainwater from adhering to the outer wall surfaces 111 and 112.
Accordingly, it is possible to prevent raindrops from occurring on the outer wall surfaces 111 and 112, and to prevent frost damage caused by the raindrops.
[0029]
In addition, since the draining member 4 can be attached to the outer wall surfaces 111 and 112 after the outer wall is constructed, the rain dripping preventing structure 1 can be easily constructed.
Further, since the draining member 4 has the curved surface portion 46 in the guide portion 42, good drainage and good appearance and design can be ensured.
[0030]
As shown in FIG. 2, the draining member 4 is disposed below the opening 2 in a range that exceeds the entire length of the lower side 21 of the opening 2. Therefore, the rainwater flowing down the side of the opening 2 can be reliably drained to the front lower side of the outer wall surfaces 111 and 112, and rain dripping can be reliably prevented. In addition, the draining member 4 is integrated with the sash 3 disposed in the opening 2 in appearance, so that good appearance design of the outer wall surfaces 111 and 112 can be secured.
[0031]
Further, since the draining member 4 protrudes forward by about 30 mm from the outer wall surfaces 111 and 112, it is possible to more reliably prevent rainfall.
Further, the draining member 4 is provided with a fixing protruding piece 47 provided below the abutting portion 41 and a screw hole 471 formed in the fixing protruding piece 47. The draining member 4 is fixed to the outer wall surfaces 111 and 112 by screws 19 inserted into the screw holes 471. Therefore, the draining member 4 can be easily fixed to the outer wall surfaces 111 and 112.
[0032]
As shown in FIGS. 2 and 3, since the draining member 4 is provided with the weir plate portion 48, the rainwater that has fallen on the guide portion 42 flows down from the left and right ends of the guide portion 42, and the outer wall surface 111 , 112 can be reliably prevented.
[0033]
As described above, according to the present embodiment, it is possible to provide a rain drooping prevention structure excellent in appearance design that can easily prevent rain drooping on the outer wall surface near the lower side edge of the opening.
[0034]
(Example 2)
As shown in FIG. 5, this example is an example of the rain drooping prevention structure 1 in which the draining member 4 is disposed below the left and right ends of the lower side 21 of the opening 2.
Others are the same as the first embodiment.
In this case, the member cost can be reduced and rain dripping can be effectively prevented. That is, the rainwater that has flowed down from near the side edge of the lower side 21 of the opening 2 is reliably drained by using the draining member 4, so that it is possible to effectively prevent rain dripping.
In addition, the third embodiment has the same functions and effects as the first embodiment.
[0035]
(Example 3)
This example is an example of a rain dripping prevention structure in which a drainage member is provided below a lower side of an opening in a renovated building.
That is, a new outer wall opening is formed in front of the existing opening to which the existing sash is attached, and the drainage member is disposed below the opening.
Others are the same as the first embodiment.
[0036]
In the case of renovation, the existing sash cannot be projected forward from the new opening because a new outer wall opening is formed in front of the existing opening where the existing sash is attached. .
Therefore, by attaching the draining member, rain dripping can be effectively prevented.
In addition, the third embodiment has the same functions and effects as the first embodiment.
[0037]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a rain drooping prevention structure excellent in appearance design that can easily prevent rain drooping on the outer wall surface near the lower side edge of the opening.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a rain droop prevention structure according to a first embodiment.
FIG. 2 is a front view of a rain drooping prevention structure according to the first embodiment.
FIG. 3 is a perspective view of a lower side of an opening and a left end of a draining member according to the first embodiment.
FIG. 4 is a sectional perspective view of a draining member according to the first embodiment.
FIG. 5 is a front view of a rain drooping prevention structure according to a second embodiment.
FIG. 6 is a cross-sectional view of a rain drooping prevention structure in a conventional example.
FIG. 7 is a front view of a rain drooping prevention structure in a conventional example.
[Explanation of symbols]
1. . . Rain dripping prevention structure,
11. . . Exterior wallboard,
111, 112. . . Outer wall surface,
2. . . Aperture,
21. . . Bottom,
3. . . sash,
4. . . Drainer,
41. . . Abutment,
42. . . Guide part,
43. . . Top part,
44. . . Front,
45. . . Bent lower end,
46. . . Curved surface,
47. . . Projecting piece for fixing,
48. . . Weir plate,

Claims

A rainfall prevention structure for preventing rainwater flowing near a lower end of a lower side of an opening of a building from hanging along an outer wall surface below the opening,
The rain dripping prevention structure is provided with a drainage member projecting forward from the outer wall surface below the lower side of the opening.
The draining member has an abutting portion that contacts the outer wall surface, and a guide portion that transmits the rainwater.
The guide portion includes an upper surface portion inclined forward and downward, a front portion formed in a substantially vertical direction, a bent lower end portion bent obliquely forward and lower at a lower end of the front portion, and the upper surface portion and the front portion. A rain drooping prevention structure having a curved surface portion that smoothly connects.

2. The draining member according to claim 1, wherein the draining member extends from a position on the lower side of the lower side of the opening to a position on the left side of a lower end of the lower side of the opening to a position on the right side of a right end of the lower side of the opening. A rain dripping prevention structure, which is provided.

3. The rain dripping prevention structure according to claim 1, wherein the draining member protrudes forward by 30 mm or more from the outer wall surface.

The draining member according to any one of claims 1 to 3, wherein the draining member is provided with a fixing protruding piece below the abutting portion and a screw hole is formed in the fixing protruding piece. Is a dripping prevention structure which is fixed to the outer wall surface by a screw inserted into the screw hole.

5. The rain dripping prevention structure according to claim 1, wherein the draining member is provided with a dam plate for damping rain water at left and right end portions of the guide portion.