JP3889978B2

JP3889978B2 - Joint structure of joint member and joining method of joint member

Info

Publication number: JP3889978B2
Application number: JP2002060349A
Authority: JP
Inventors: 博規中庄谷; 直成都島; 文彦屋敷
Original assignee: Misawa Homes Co Ltd; Nishikawa Rubber Co Ltd
Current assignee: Misawa Homes Co Ltd; Nishikawa Rubber Co Ltd
Priority date: 2002-03-06
Filing date: 2002-03-06
Publication date: 2007-03-07
Anticipated expiration: 2022-03-06
Also published as: JP2003253776A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば、隣接する外壁材の間に形成される目地空間に屋外側から圧入される目地部材の取付構造および目地部材の接合方法に関する。
【０００２】
【背景技術】
在来工法で建築される一般住宅等の建物においては、一般に、サイディング材等の外壁材を鉄骨や木材で形成された軸組に取り付けることにより外壁を形成する。
また、複数の建物ユニットを予め工場で製造し、これらを建設現場で組み合わせて建物を構築するユニット工法においては、例えば、工場で建物ユニットを製造する際に、ＡＬＣやＰＡＬＣ等の軽量気泡コンクリートからなる外壁材を、柱および梁で形成された箱状のフレームに組み付けておき、この外壁材を取り付けた建物ユニットを建設現場まで運搬して積層することにより、外壁を形成する。
【０００３】
このようにサイディング材や軽量気泡コンクリート等の外壁材を上下左右に並設した外壁では、隣接する外壁材の間の目地空間から雨水が屋内に浸入するのを防止するため、目地空間には湿式目地工法や乾式目地工法等による防水処理が施される。
湿式目地工法とは、流動性を有するコーキング材をガンを用いて目地空間に充填した後、その表面をへらで均して目地表面を僅かに凹んだ形状に仕上げるものである。
【０００４】
乾式目地工法とは、樹脂成型品等の目地部材を圧入して目地を形成するものである。この乾式目地について、本出願人は、屋外側から屋内側に延びる目地本体と、この目地本体に設けられ前記目地空間を止水する止水部と、前記目地本体の屋外側端部に設けられ前記目地空間を塞ぐ目地表装部とを含んで構成された目地部材を提案した（特開平１１−６２０３４号公報参照）。特開平１１−６２０３４号公報によれば、目地部材を目地空間に圧入すると、止水部が目地空間を塞いで屋外からの雨水の浸入を防ぐとともに、目地表装部が外壁材に僅かに引っかかることによって弾性変形して屋外側に反ることとなって、目地表面が凹んだ形状となる。
【０００５】
【発明が解決しようとする課題】
しかしながら、目地部材を目地空間に圧入した際、目地部材の目地表装部が屋外側に反りすぎてしまい、湿式目地工法による目地と同様の外観とならない場合があった。その結果、目地の位置に応じて要求される性能や施工条件等を考慮しながら湿式目地工法または目地部材を用いる乾式目地工法を選択して用いることが難しく、湿式目地工法と併用することが困難であった。
【０００６】
本発明の目的は、湿式目地工法による目地と同様の外観を得ることができる目地部材の取付構造および目地部材の接合方法を提供することにある。
【０００７】
【課題を解決するための手段】
上記目的を達成するため、本発明の目地部材およびその接合方法は、次の構成を採用する。
本発明を図面を参照して説明すると、請求項１に記載の目地部材の取付構造は、隣接する外壁材６，６Ａ，６Ｂ，７の間に形成される目地空間８，９に屋外側から圧入される目地部材２０の取付構造であって、屋外側から屋内側に向かって圧入方向に延びる目地本体２２と、この目地本体の屋内側に設けられ前記目地空間を止水する止水部２３，２４と、前記目地本体の屋外側端部に設けられ前記目地空間を塞ぐ目地表装部２５とを備え、前記目地表装部は、前記止水部よりは目地幅方向の長さが短く、前記目地空間よりは目地幅方向の長さが長く形成されているとともに、弾性変形可能とされ、かつ目地幅方向の形状が断面曲線状で前記止水部側に反った曲面となっており、前記止水部は、前記目地本体に設けられ弾性変形により前記目地空間を塞ぐ第１止水部２３と、前記目地本体の第１止水部より屋外側に設けられ弾性変形により前記目地空間を塞ぐ第２止水部２４とを備え、前記第１止水部および前記第２止水部は連結部材２６で連結され、前記目地部材の端面同士の接合部分では、当該目地部材が長さ方向に対して略斜めに切断されることにより、前記目地表装部の端面がその長さ方向に突出して形成されているとともに、前記目地表装部および前記止水部の両端が前記外壁材に引っかかって屋外側に弾性変形しながら前記目地空間に圧入され、かつ前記端面同士が押し付けられて接合されていることを特徴とする。
【０００８】
この発明によれば、目地空間に目地部材を屋外側から圧入すると、止水部が目地空間に挿入されて目地空間を止水するとともに、目地表装部が外壁材に引っかかって屋外側に弾性変形しながら挿入されて目地空間を塞ぐ。このとき、目地表装部は、元々止水部側に反って設けられているため、外壁材によって屋外側に弾性変形しても、僅かに屋外側に反った状態、つまり僅かに凹状となる。したがって、止水部で屋内への雨水の浸入を防止しつつ、弾性変形した目地表装部が硬化した湿式目地工法による目地と同様の外観を得ることができる。しかも、目地表装部の目地幅方向の長さを止水部よりは短く、目地空間よりは長くしたので、目地部材を目地空間に圧入しても、外壁材によって止水部ほど押圧されず、目地表装部が屋外側に反りすぎるのを防止しできる。そのうえ、第１止水部および第２止水部により２重に防水できるから、目地部材の防水性能を向上できる。また、目地部材を目地空間に圧入した場合に、各止水部が弾性変形しようとしても、連結部材によって過度の変形を互いに抑制するから、各止水部を確実に外壁材に密着させることができ、防水性能をさらに向上できる。
また、目地部材を端面同士で押し付けることにより、各目地部材の突出した目地表装部同士が互いに押圧されて弾性変形し、目地表装部同士が隙間なく密着するから、目地部材同士の接合部分の外観を良好にするとともに、雨水の浸入を防ぐことができる。
【００１２】
請求項２に記載の目地部材の取付構造は、請求項１に記載の目地部材の取付構造において、前記目地本体は、その内部に長さ方向に沿ってワイヤー材２７を有していることを特徴とする。
この発明によれば、例えば、目地部材を目地空間に圧入する場合に、目地部材が長さ方向に延びて防水性低下や外観不良等の不具合が発生するのを防止できる。
【００１３】
請求項３に記載の目地部材の接合方法は、目地部材をその端面同士で接合する接合方法であって、前記目地部材２０は、屋外側から屋内側に向かって圧入方向に延びる目地本体と、この目地本体の屋内側に設けられ前記目地空間を止水する止水部と、前記目地本体の屋外側端部に設けられ前記目地空間を塞ぐ目地表装部とを備え、前記目地表装部は、前記止水部よりは目地幅方向の長さが短く、前記目地空間よりは目地幅方向の長さが長く形成されているとともに、弾性変形可能とされ、かつ目地幅方向の形状が断面曲線状で前記止水部側に反った曲面となっており、前記止水部は、前記目地本体に設けられ弾性変形により前記目地空間を塞ぐ第１止水部と、前記目地本体の第１止水部より屋外側に設けられ弾性変形により前記目地空間を塞ぐ第２止水部とを備え、前記第１止水部および前記第２止水部は連結部材で連結され、前記各目地部材を長さ方向に対して略斜めに切断することにより、それぞれの前記目地表装部の端面をその長さ方向に突出して形成し、これら目地部材を端面同士で押し付けて接合することを特徴とする。
なお、略斜めに切断するとは、その切り口が平坦となる場合に限らず、凹状や凸状となる場合も含まれる。
この発明によれば、目地部材を端面同士で押し付けることにより、各目地部材の突出した目地表装部同士が互いに押圧されて弾性変形し、目地表装部同士が隙間なく密着するから、目地部材同士の接合部分の外観を良好にするとともに、雨水の浸入を防ぐことができる。
【００１５】
【発明の実施の形態】
以下、本発明の実施形態を図面に基づいて説明する。
図１には、２階建てのユニット式建物１の全体斜視図が示されている。
ユニット式建物１は、基礎２と、この基礎２上に積層配置された箱形の建物ユニット３と、これら建物ユニット３の上に配置された屋根（図示省略）とを含んで構成されている。
【００１６】
図２には、建物ユニット３の斜視図が示されている。
建物ユニット３は、四本の柱１１、これら四本の柱１１の上端間を連結する上梁１２および四本の柱１１の下端間を連結する下梁１３を含んで構成される直方体状のフレーム４と、上梁１２間に架け渡された複数の小梁１４と、下梁１３間に架設された複数の根太１５とを備えている。
建物ユニット３は、内装材として、小梁１４に支持された天井面材１６や根太１５に支持された床面材１７のほか、図示しない内壁パネルおよび間仕切パネル等を備えている。
【００１７】
さらに、図１にも示すように、屋外に面する建物ユニット３は、そのフレーム４の側面にＡＬＣやＰＡＬＣ等の軽量気泡コンクリートからなる矩形板状の外壁材６を備えている。なお、屋外に面する建物ユニット３のうち、ユニット式建物１の角隅部、つまり、ユニット式建物１の出隅部１Ａおよび入隅部１Ｂに配置される建物ユニット３は、そのフレーム４の角隅部に、平面視で略Ｌ字状の角隅部用外壁材７を備えている。
【００１８】
このような建物ユニット３を積層配置することで、各建物ユニット３の外壁材６，７は上下左右に並設され、これら外壁材６，７によってユニット式建物１の外壁が構成されている。
本実施形態の外壁においては、上下に隣接する外壁材６の間、角隅部用外壁材７の間にそれぞれ横目地空間８が形成され、左右に隣接する外壁材６の間、外壁材６，７の間にそれぞれ縦目地空間９が形成されている。これら横目地空間８および縦目地空間９には、目地部材２０が屋外側から圧入されて配置されている。
【００１９】
図３には、目地部材２０が横目地空間８に圧入された状態の斜視図が示されている。
目地部材２０は、上下に隣接する外壁材６Ａ，６Ｂで形成された横目地空間８に屋外側から圧入(図３中の矢印方向)されて配置されるものである。なお、目地部材２０が縦目地空間９に圧入された場合も同様の状態となる。
【００２０】
図４には、目地部材２０の断面図が示されている。
目地部材２０は、横目地空間８の長さ方向に連続した形状を有し、屋外側から屋内側に向かって圧入方向に延びる目地本体２２と、この目地本体２２の屋外側に設けられ横目地空間８を止水する第１止水部２３および第２止水部２４と、第１止水部２３と第２止水部２４とを連結する連結部材２６と、目地本体２２の屋外側端部に設けられ横目地空間８を塞ぐ目地表装部２５とを備え、これら目地本体２２、各止水部２３，２４、連結部材２６および目地表装部２５は一体に形成されている。
【００２１】
第１止水部２３は、目地本体２２の屋内側端部に目地幅方向に突出して設けられた２つの第１止水片２３１，２３２を含んで構成され、第２止水部２４は、目地本体２２の第１止水部２３より屋外側に目地幅方向に突出して設けられた２つの第２止水片２４１，２４２を含んで構成されている。
第１止水部２３および第２止水片２４の目地幅方向の長さ、つまり、第１止水片２３１先端から第１止水片２３２先端までの長さと、第２止水片２４１先端から第２止水片２４２先端までの長さは、寸法Ｓ１とされている。
【００２２】
連結部材２６は、第１止水片２３１および第２止水片２４１のそれぞれの中間部分を連結する連結片２６１と、第１止水片２３２および第２止水片２４２のそれぞれの中間部分を連結する連結片２６２とを含んで構成されている。
目地本体２２、第１止水片２３１、第２止水片２４１および連結片２６１によって矩形筒状の空間が形成され、また、目地本体２２、第１止水片２３２、第２止水片２４２および連結片２６２によって矩形筒状の空間が形成されており、これらの空間は横目地空間８の長さ方向に連続している。
【００２３】
目地表装部２５は、弾性を有する材料により形成され、幅方向の形状が断面曲線状で、かつ、その長さが寸法Ｓ２（Ｓ２＜Ｓ１）とされ、幅方向略中央で目地本体２２に連結されている。すなわち、止水部２３，２４より目地幅方向の長さが短く、かつ、止水部２３，２４側に反った曲面となっている。また、目地表装部２５の屋外側の面は、美観を確保するために、外壁材６，７と略同じ色に形成され、外壁材６，７と略同じ質感にするためのエンボス加工が施されている。
目地本体２２は、その長さ方向に沿って内部にワイヤー材２７を有している。
【００２４】
本実施形態においては、次のような手順で横目地空間８および縦目地空間９の防水処理を行う。
図３に戻って、横目地空間８に目地部材２０を屋外側から圧入すると、第１止水部２３および第２止水部２４の各止水片２３１，２３２，２４１，２４２は、連結片２６１，２６２によって過度の変形を互いに抑制しながら、その先端が弾性変形して外壁材６Ａ，６Ｂの上下端面に密着し、これにより、横目地空間８を塞いで外部からの雨水の浸入を防止する。
このとき、目地表装部２５は、その両端が外壁材６に引っかかって屋外側に弾性変形しながら横目地空間８に挿入される。目地表装部２５は、元々止水部２３，２４側に反って設けられているうえため、外壁材６Ａ，６Ｂによって屋外側に弾性変形しても、僅かに屋外側に反った状態、つまり目地表装部２５の表面が僅かに凹んだ状態で横目地空間８を塞ぐ。
【００２５】
また、以上の目地部材２０同士の接合は以下のように行う。
図５に示すように、２つの目地部材２０を長さ方向に対して斜めに切断することにより、長さ方向に目地表装部２５の端面が突出した目地部材２０Ａを形成し、これら目地部材２０Ａを端面同士で押し付ける。すると、各目地部材２０Ａの突出した目地表装部２５が互いに押圧されて弾性変形して密着する。
【００２６】
したがって、本実施形態によれば以下の効果がある。
(１)屋外側から屋内側に向かって圧入方向に延びる目地本体２２と、この目地本体２２に設けられ横目地空間８を止水する止水部２３，２４と、目地本体２２の屋外側端部に設けられ横目時空間８を塞ぐ目地表装部２５とを含んで目地部材２０を構成したので、横目地空間８に目地部材２０を屋外側から圧入すると、第１止水部２３および第２止水部２４が横目地空間８に挿入されて、横目地空間８を塞ぐ。このとき、目地表装部２５は、元々止水部２３，２４側に反って設けられているため、外壁材６によって屋外側に弾性変形しても、僅かに屋外側に反った状態、つまり目地表装部２５の表面が僅かに凹状となる。したがって、止水部２３，２４で屋内への雨水の浸入を防止しつつ、弾性変形した目地表装部２５が硬化した湿式目地工法による目地と同様の外観を得ることができる。
【００２７】
(２)目地表装部２５の目地幅方向の長さをＳ２とし、第１止水部２３および第２止水部２４の目地幅方向の長さＳ１より短くしたので、目地部材２０を横目地空間８に圧入しても、外壁材６Ａ，６Ｂによって各止水部２３，２４ほど押圧されないため、目地表装部２５が屋外側に反りすぎるのを防止して、湿式目地工法による目地と同様の外観を容易に形成できる。
(３)第１止水部２３および第２止水部２４を設けたので、各止水片２３１，２３２，２４１，２４２により２重に防水できるから、目地部材の防水性能を向上できる。
【００２８】
(４)連結片２６１で第１止水片２３１および第２止水片２４１を連結し、連結片２６２で第１止水片２３２および第２止水片２４２を連結したので、目地部材２０を横目地空間８に圧入した場合に、各止水片２３１，２３２，２４１，２４２が弾性変形しようとしても、各連結片２６１，２６２によって過度の変形を互いに抑制するから、止水片２３１，２３２，２４１，２４２を確実に外壁材６に密着させることができ、防水性能をさらに向上できる。
(５)目地本体２２に内部に長さ方向に沿ってワイヤー材２７を設けたので、目地部材２０を横目地空間８に圧入する場合に、目地部材２０が長さ方向に延びて防水性低下や外観不良等の不具合が発生するのを防止できる。
【００２９】
(６)各目地部材２０を長さ方向に対して略斜めに切断することにより、それぞれの目地表装部２５の端面をその長さ方向に突出して形成し、これら目地部材２０Ａを端面同士で押し付けたので、各目地部材２０Ａの突出した目地表装部２５同士が互いに押圧されて弾性変形し、目地表装部２５同士が隙間なく密着するから、目地部材２０Ａ同士の接合部分の外観を良好にするとともに、雨水の浸入を防ぐことができる。
【００３１】
〔参考例〕
図６には、目地部材２０同士の接合部分の側面図が示されている。
２つの目地部材２０のうち、一方の目地部材２０を長さ方向に対して略斜めに切断することにより、その目地表装部２５の端面が長さ方向に突出した目地部材２０Ｂを形成する。また、他方の目地部材２０を長さ方向に対して略斜めに切断することにより、その止水部２３，２４の端面が長さ方向に突出した目地部材２０Ｃを形成する。
目地部材２０Ｂ，２０Ｃを端面同士で押し付けると、目地部材２０Ｂの突出した目地表装部２５が目地部材２０Ｃの目地表装部２５に密着し、目地部材２０Ｃの突出した止水部２３，２４が目地部材２０Ｂの止水部２３，２４に密着する。
【００３２】
このようにしても、前記実施形態で述べた(１)〜(５)の効果に加え、以下のような効果がある。
(７)目地表装部２５の端面が長さ方向に突出した目地部材２０Ｂと、止水部２３，２４の端面が長さ方向に突出した目地部材２０Ｃを形成し、目地部材２０Ｂ，２０Ｃを端面同士で押し付けたので、目地部材２０Ｂの突出した目地表装部２５が目地部材２０Ｃの目地表装部２５に密着し、目地部材２０Ｃの突出した止水部２３，２４が目地部材２０Ｂの止水部２３，２４に密着するから、目地部材２０Ｂ，２０Ｃの接合部分の外観を良好にするとともに、雨水の浸入を防ぐことができる。
なお、本発明は前記実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれる。
【００３３】
【発明の効果】
本発明の目地部材の取付構造、および目地部材の接合方法によれば、次のような効果が得られる。
請求項１に記載の目地部材の取付構造によれば、目地空間に目地部材を屋外側から圧入すると、止水部が目地空間に挿入されて目地空間を止水するとともに、目地表装部が外壁材に引っかかって屋外側に弾性変形しながら挿入されて目地空間を塞ぐ。このとき、目地表装部は、元々止水部側に反って設けられているため、外壁材によって屋外側に弾性変形しても、僅かに屋外側に反った状態、つまり僅かに凹状となる。しかも、外壁材によって止水部ほど押圧されないため、目地表装部が屋外側に反りすぎるのを防止して、湿式目地工法による目地と同様の外観を容易に形成できる。そのうえ、第１止水部および第２止水部により２重に防水できるから、目地部材の防水性能を向上できる。そのうえ、連結部材によって過度の変形を互いに抑制するから、各止水部を確実に外壁材に密着させることができ、防水性能をさらに向上できる。また、各目地部材の突出した目地表装部同士が互いに押圧されて弾性変形し、目地表装部同士が隙間なく密着するから、目地部材同士の接合部分の外観を良好にするとともに、雨水の浸入を防ぐことができる。
【００３７】
請求項２に記載の目地部材の取付構造によれば、目地部材が長さ方向に延びて防水性低下や外観不良等の不具合が発生するのを防止できる。
【００３８】
請求項３に記載の目地部材の接合方法によれば、各目地部材の突出した目地表装部同士が互いに押圧されて弾性変形し、目地表装部同士が隙間なく密着するから、目地部材同士の接合部分の外観を良好にするとともに、雨水の浸入を防ぐことができる。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る目地部材が適用されたユニット式建物を示す全体斜視図である。
【図２】前記実施形態に係るユニット式建物を構成する建物ユニットの斜視図である。
【図３】前記実施形態に係る目地部材が横目地空間に圧入された状態の斜視図である。
【図４】前記実施形態に係る目地部材の断面図である。
【図５】前記実施形態に係る目地部材の接合方法を説明するための正面図および側面図である。
【図６】参考例の目地部材の接合方法を説明するための正面図および側面図である。
【符号の説明】
６，６Ａ，６Ｂ外壁材
７角隅部用外壁材
８横目地空間
９縦目地空間
２０，２０Ａ，２０Ｂ目地部材
２２目地本体
２３，２４止水部
２５目地表装部
２６連結部材
２７ワイヤー材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to, for example, a joint member mounting structure that is press-fitted into a joint space formed between adjacent outer wall materials from the outdoor side, and a joint member joining method.
[0002]
[Background]
In a building such as a general house constructed by a conventional construction method, an outer wall is generally formed by attaching an outer wall material such as a siding material to a frame formed of a steel frame or wood.
In addition, in the unit construction method in which a plurality of building units are manufactured in a factory in advance and these are combined at a construction site to construct a building, for example, when building units are manufactured in a factory, a lightweight cellular concrete such as ALC or PALC is used. The outer wall material is assembled in a box-shaped frame formed of columns and beams, and the building unit to which the outer wall material is attached is transported to the construction site and stacked, thereby forming the outer wall.
[0003]
In this way, in the outer wall in which outer wall materials such as siding material and lightweight cellular concrete are arranged side by side vertically and horizontally, in order to prevent rainwater from entering the indoor space from the joint space between adjacent outer wall materials, the joint space is wet. Waterproofing is performed by joint method or dry joint method.
The wet joint method is a method in which a caulking material having fluidity is filled into a joint space using a gun, and then the surface is leveled with a spatula to finish the joint surface slightly concave.
[0004]
In the dry joint method, a joint is formed by press fitting a joint member such as a resin molded product. For this dry joint, the present applicant is provided at the joint main body extending from the outdoor side to the indoor side, the water stop portion provided on the joint main body to stop the joint space, and the outdoor side end of the joint main body. The joint member comprised including the joint surface covering part which block | closes the said joint space was proposed (refer Unexamined-Japanese-Patent No. 11-62034). According to Japanese Patent Laid-Open No. 11-62034, when the joint member is press-fitted into the joint space, the water stop portion blocks the joint space to prevent rainwater from entering from outside, and the joint surface covering portion is slightly caught by the outer wall material. It is elastically deformed and warps to the outdoor side, resulting in a shape in which the joint surface is recessed.
[0005]
[Problems to be solved by the invention]
However, when the joint member is press-fitted into the joint space, the joint cover portion of the joint member is warped too much on the outdoor side, and the appearance similar to the joint by the wet joint method may not be obtained. As a result, it is difficult to select and use a wet joint method or a dry joint method using joint members while taking into account the performance and construction conditions required according to the joint position, and difficult to use together with the wet joint method. Met.
[0006]
The objective of this invention is providing the attachment structure of the joint member which can obtain the external appearance similar to the joint by the wet joint method, and the joining method of the joint member .
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the joint member of the present invention and the joining method thereof employ the following configuration.
The present invention will be described with reference to the drawings. The joint member mounting structure according to claim 1 is provided in the joint spaces 8, 9 formed between adjacent outer wall members 6, 6A, 6B, 7 from the outdoor side. A fitting structure of the press-fitted joint member 20, which is a joint main body 22 extending in the press-fitting direction from the outdoor side toward the indoor side, and a water stop portion 23 provided on the indoor side of the joint main body to stop the joint space. , 24, and a joint surface covering portion 25 that is provided at an end portion on the outdoor side of the joint body and closes the joint space, and the joint surface covering portion is shorter in the joint width direction than the water stop portion, The length in the joint width direction is longer than the joint space, is elastically deformable , and the shape in the joint width direction is a curved surface that is curved in cross section and is curved toward the water stop portion, The water stop portion is provided in the joint body and elastically deformed to form the joint. A first water stopper 23 to close between, the elastic deformation provided on the outdoor side of the first waterproof part of the joint body and a second water stopper 24 for closing the joint space, the first water stopper And the said 2nd water stop part is connected with the connection member 26 , and the joint part is cut | disconnected substantially diagonally with respect to the length direction in the junction part of the end surfaces of the said joint member, Therefore An end surface is formed to project in the length direction, and both ends of the joint surface mounting portion and the water stop portion are hooked on the outer wall material and are elastically deformed to the outdoor side, and are press-fitted into the joint space, and the end surface It is characterized by being pressed and joined together.
[0008]
According to this invention, when the joint member is press-fitted into the joint space from the outdoor side, the water stop portion is inserted into the joint space to stop the joint space, and the joint surface covering portion is caught by the outer wall material and elastically deforms to the outdoor side. It is inserted while closing the joint space. At this time, since the joint surface covering portion is originally provided to warp the water stop portion, even if it is elastically deformed to the outdoor side by the outer wall material, it is slightly warped to the outdoor side, that is, slightly concave. Therefore, it is possible to obtain the same appearance as the joint by the wet joint method in which the joint cover portion that has been elastically deformed is cured while preventing rainwater from entering the indoors at the water stop. Moreover, since the length of the joint surface covering portion in the joint width direction is shorter than the water stop portion and longer than the joint space, even if the joint member is press-fitted into the joint space, it is not pressed as much as the water stop portion by the outer wall material, It is possible to prevent the joint surface covering portion from warping too much on the outdoor side. In addition, since the first water stop portion and the second water stop portion can be double waterproofed, the waterproof performance of the joint member can be improved. In addition, when the joint member is press-fitted into the joint space, even if each water stop portion tries to elastically deform, excessive deformation is suppressed by the connecting member, so that each water stop portion can be securely adhered to the outer wall material. This can further improve the waterproof performance.
In addition, by pressing the joint members between the end surfaces, the joint cover parts protruding from the joint members are pressed against each other and elastically deformed, and the joint cover parts are in close contact with each other without any gaps. In addition, it is possible to prevent rainwater from entering.
[0012]
Mounting structure of joint member according to claim 2, in the mounting structure of the joint member according to claim 1, wherein the joint body, that has a wire member 27 along the length therein Features.
According to the present invention, for example, when the joint member is press-fitted into the joint space, it is possible to prevent the joint member from extending in the length direction and causing problems such as deterioration in waterproofness and poor appearance.
[0013]
Method of bonding joint member according to claim 3, a joining method for joining the eyes fabric member in its end faces, the joint member 20 includes a joint body extending into the press direction toward the indoor side from the outdoor side A water stop portion provided on the indoor side of the joint body for stopping the joint space, and a joint cover portion provided on an outdoor side end portion of the joint body for closing the joint space. The length in the joint width direction is shorter than the water stop portion, the length in the joint width direction is longer than the joint space, and is elastically deformable, and the shape in the joint width direction is a cross-sectional curve. The water-stopping portion has a curved surface that warps toward the water-stopping portion, and the water-stopping portion is provided on the joint main body and elastically deforms to close the joint space, and a first water-stopping portion of the joint main body. Provided on the outdoor side from the water part, the joint space is closed by elastic deformation. And a second waterproof part, the first water stopper and the second waterproof part is connected by a connecting member, by cutting substantially diagonally the respective joint members a longitudinal, respectively An end surface of the joint surface covering portion is formed so as to protrude in the length direction, and these joint members are pressed and joined to each other between the end surfaces.
Note that cutting substantially obliquely includes not only a case where the cut end is flat, but also a case where the cut end is concave or convex.
According to the present invention, by pressing the joint members between the end surfaces, the joint surface mounting portions protruding from the joint members are pressed against each other and elastically deformed, and the joint surface mounting portions closely contact each other without a gap. It is possible to improve the appearance of the joint portion and prevent rainwater from entering.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an overall perspective view of a two-story unit type building 1.
The unit building 1 includes a foundation 2, a box-shaped building unit 3 stacked on the foundation 2, and a roof (not shown) disposed on the building unit 3. .
[0016]
FIG. 2 shows a perspective view of the building unit 3.
The building unit 3 has a rectangular parallelepiped shape including four columns 11, an upper beam 12 that connects the upper ends of the four columns 11, and a lower beam 13 that connects the lower ends of the four columns 11. A frame 4, a plurality of small beams 14 spanned between the upper beams 12, and a plurality of joists 15 disposed between the lower beams 13 are provided.
The building unit 3 includes an interior wall panel and a partition panel (not shown) as an interior material, in addition to a ceiling surface material 16 supported by a small beam 14 and a floor surface material 17 supported by a joist 15.
[0017]
Further, as shown in FIG. 1, the building unit 3 facing outdoors includes a rectangular plate-like outer wall material 6 made of lightweight cellular concrete such as ALC or PALC on the side surface of the frame 4. Of the building units 3 facing the outdoors, the building units 3 arranged at the corners of the unit building 1, that is, the projecting corners 1 </ b> A and the entrance corners 1 </ b> B of the unit building 1, A corner-corner outer wall material 7 having a substantially L shape in plan view is provided at the corner.
[0018]
By arranging such building units 3 in a stacked manner, the outer wall materials 6 and 7 of each building unit 3 are arranged side by side in the vertical and horizontal directions, and the outer walls of the unit type building 1 are constituted by these outer wall materials 6 and 7.
In the outer wall of the present embodiment, horizontal joint spaces 8 are formed between the outer wall materials 6 adjacent to each other in the vertical direction and between the outer wall materials 7 for the corners, and the outer wall materials 6 between the outer wall materials 6 adjacent to the left and right. , 7, vertical joint spaces 9 are formed. In these horizontal joint space 8 and vertical joint space 9, joint members 20 are press-fitted from the outdoor side.
[0019]
FIG. 3 is a perspective view showing a state in which the joint member 20 is press-fitted into the horizontal joint space 8.
The joint member 20 is arranged to be press-fitted (in the direction of the arrow in FIG. 3) from the outdoor side into the horizontal joint space 8 formed by the outer wall materials 6A and 6B adjacent vertically. The same state is obtained when the joint member 20 is press-fitted into the vertical joint space 9.
[0020]
FIG. 4 shows a cross-sectional view of the joint member 20.
The joint member 20 has a shape that is continuous in the length direction of the horizontal joint space 8, and a joint body 22 that extends in the press-fit direction from the outdoor side toward the indoor side, and a joint joint that is provided on the outdoor side of the joint body 22. The first water stop portion 23 and the second water stop portion 24 that stop the water 8, the connecting member 26 that connects the first water stop portion 23 and the second water stop portion 24, and the outdoor side end of the joint body 22. And a joint surface covering portion 25 that closes the horizontal joint space 8. The joint body 22, the water stop portions 23 and 24, the connecting member 26, and the joint surface covering portion 25 are integrally formed.
[0021]
The first water stop portion 23 is configured to include two first water stop pieces 231 and 232 provided at the indoor side end portion of the joint main body 22 so as to protrude in the joint width direction. The first water stop portion 23 of the joint body 22 is configured to include two second water stop pieces 241 and 242 provided on the outdoor side so as to protrude in the joint width direction.
The length of the first water stop 23 and the second water stop piece 24 in the joint width direction, that is, the length from the first water stop piece 231 tip to the first water stop piece 232 tip, and the second water stop piece 241 tip. The length from the tip of the second water stop piece 242 is the dimension S1.
[0022]
The connecting member 26 includes a connecting piece 261 that connects the intermediate portions of the first water stop piece 231 and the second water stop piece 241, and intermediate portions of the first water stop piece 232 and the second water stop piece 242. And a connecting piece 262 to be connected.
A rectangular cylindrical space is formed by the joint body 22, the first water stop piece 231, the second water stop piece 241, and the connecting piece 261, and the joint body 22, the first water stop piece 232, and the second water stop piece 242. A rectangular cylindrical space is formed by the connecting piece 262, and these spaces are continuous in the length direction of the horizontal joint space 8.
[0023]
The joint surface covering portion 25 is formed of an elastic material, the shape in the width direction is a cross-sectional curve shape, and the length thereof is the dimension S2 (S2 <S1), and is connected to the joint body 22 at the approximate center in the width direction. Has been. That is, the length in the joint width direction is shorter than the water stop portions 23 and 24, and the surface is curved toward the water stop portions 23 and 24 side. Further, the surface on the outdoor side of the joint surface covering portion 25 is formed in substantially the same color as the outer wall materials 6 and 7 in order to ensure aesthetics, and embossing is performed to make the texture almost the same as that of the outer wall materials 6 and 7. Has been.
The joint body 22 has a wire material 27 inside along the length direction thereof.
[0024]
In the present embodiment, the waterproof treatment of the horizontal joint space 8 and the vertical joint space 9 is performed in the following procedure.
Returning to FIG. 3, when the joint member 20 is press-fitted into the horizontal joint space 8 from the outdoor side, the water stop pieces 231, 232, 241, 242 of the first water stop portion 23 and the second water stop portion 24 are connected pieces. While suppressing excessive deformation by 261 and 262, the front ends thereof are elastically deformed to closely contact the upper and lower end surfaces of the outer wall materials 6A and 6B, thereby closing the horizontal joint space 8 and preventing rainwater from entering from the outside. To do.
At this time, the joint surface covering portion 25 is inserted into the lateral joint space 8 while both ends thereof are caught by the outer wall material 6 and elastically deformed to the outdoor side. Since the joint surface covering portion 25 is originally provided on the water stop portions 23 and 24 side, even if it is elastically deformed on the outdoor side by the outer wall materials 6A and 6B, it is slightly warped on the outdoor side, that is, the joint portion. The horizontal joint space 8 is closed with the surface of the cover portion 25 slightly recessed.
[0025]
Moreover, the joint of the above joint members 20 is performed as follows.
As shown in FIG. 5, by cutting the two joint members 20 obliquely with respect to the length direction, joint members 20 </ b> A in which the end surfaces of the joint surface mounting portions 25 protrude in the length direction are formed, and these joint members 20 </ b> A are formed. Press between the end faces. Then, the projected joint surface covering portions 25 of the respective joint members 20A are pressed against each other and elastically deformed to be in close contact with each other.
[0026]
Therefore, according to this embodiment, there are the following effects.
(1) A joint body 22 extending in the press-fitting direction from the outdoor side toward the indoor side, water-stopping portions 23 and 24 provided in the joint body 22 for water-stopping the lateral joint space 8, and an outdoor-side end of the joint body 22 Since the joint member 20 is configured to include the joint surface covering portion 25 that is provided in the section and closes the lateral joint space 8, when the joint member 20 is press-fitted into the lateral joint space 8 from the outdoor side, the first water stop 23 and the second The water stop 24 is inserted into the horizontal joint space 8 and closes the horizontal joint space 8. At this time, since the joint surface covering portion 25 is originally provided on the water stop portions 23 and 24 side, even if it is elastically deformed on the outdoor side by the outer wall material 6, it is slightly warped on the outdoor side, that is, the joint portion. The surface of the cover part 25 is slightly concave. Therefore, it is possible to obtain the same appearance as the joint by the wet joint method in which the elastically deformed joint surface covering portion 25 is hardened while preventing the rainwater from entering the indoors by the water stop portions 23 and 24.
[0027]
(2) Since the length in the joint width direction of the joint surface covering portion 25 is S2 and is shorter than the length S1 in the joint width direction of the first water stop portion 23 and the second water stop portion 24, the joint member 20 is the horizontal joint. Even if it press-fits into the space 8, the outer wall materials 6A and 6B are not pressed as much as the water stop portions 23 and 24, so that the joint surface covering portion 25 is prevented from being warped too much on the outdoor side, and is similar to the joint by the wet joint method. Appearance can be easily formed.
(3) Since the first water stop portion 23 and the second water stop portion 24 are provided, the water stop pieces 231, 232, 241, and 242 can be double waterproofed, so that the waterproof performance of the joint member can be improved.
[0028]
(4) Since the first water stop piece 231 and the second water stop piece 241 are connected by the connecting piece 261, and the first water stop piece 232 and the second water stop piece 242 are connected by the connecting piece 262, the joint member 20 is Even when the water stopping pieces 231, 232, 241, 242 try to elastically deform when pressed into the horizontal joint space 8, the connecting pieces 261, 262 suppress excessive deformation from each other. , 241, 242 can be securely adhered to the outer wall material 6, and the waterproof performance can be further improved.
(5) Since the wire material 27 is provided in the joint main body 22 along the length direction, when the joint member 20 is press-fitted into the horizontal joint space 8, the joint member 20 extends in the length direction and the waterproof property decreases. And the occurrence of defects such as poor appearance can be prevented.
[0029]
(6) By cutting each joint member 20 substantially obliquely with respect to the length direction, the end surfaces of the respective joint surface covering portions 25 are formed so as to protrude in the length direction, and these joint members 20A are pressed together between the end surfaces. Therefore, since the joint cover parts 25 which each joint member 20A protruded are mutually pressed and elastically deformed, and the joint cover parts 25 closely contact each other without a gap, the appearance of the joint portion between the joint members 20A is improved. Can prevent the intrusion of rainwater.
[0031]
[Reference example]
FIG. 6 shows a side view of the joint portion between the joint members 20.
By cutting one joint member 20 of the two joint members 20 substantially obliquely with respect to the length direction, a joint member 20B in which the end surface of the joint surface mounting portion 25 protrudes in the length direction is formed. Moreover, the other joint member 20 is cut | disconnected substantially diagonally with respect to the length direction, and the joint member 20C which the end surface of the water stop parts 23 and 24 protruded in the length direction is formed.
When the joint members 20B and 20C are pressed to each other between the end faces, the joint covering portion 25 protruding from the joint member 20B is brought into close contact with the joint covering portion 25 of the joint member 20C, and the water stop portions 23 and 24 protruding from the joint member 20C are the joint members. It closely adheres to the water stop portions 23 and 24 of 20B.
[0032]
This also has the following effects in addition to the effects (1) to (5) described in the above embodiment.
(7) The joint member 20B in which the end face of the joint surface covering portion 25 protrudes in the length direction and the joint member 20C in which the end faces of the water stop portions 23 and 24 protrude in the length direction are formed, and the joint members 20B and 20C are end faces. Since the joint members 20B are pressed together, the joint cover portion 25 from which the joint member 20B protrudes closely contacts the joint cover portion 25 of the joint member 20C, and the water stop portions 23 and 24 from which the joint member 20C protrudes are the water stop portion 23 of the joint member 20B. , 24, it is possible to improve the appearance of the joint portion of the joint members 20B, 20C and to prevent rainwater from entering.
It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
[0033]
【The invention's effect】
According to the joint member mounting structure and joint member joining method of the present invention, the following effects can be obtained.
According to the joint member mounting structure according to claim 1, when the joint member is press-fitted into the joint space from the outdoor side, the water stop portion is inserted into the joint space to stop the joint space, and the joint surface covering portion is the outer wall. It is inserted into the outdoor side while being elastically deformed by being caught by the material, thereby closing the joint space. At this time, since the joint surface covering portion is originally provided to warp the water stop portion, even if it is elastically deformed to the outdoor side by the outer wall material, it is slightly warped to the outdoor side, that is, slightly concave. Moreover, since the outer wall material is not pressed as much as the water stop portion, the joint surface covering portion can be prevented from warping too much to the outside, and the appearance similar to the joint by the wet joint method can be easily formed. In addition, since the first water stop portion and the second water stop portion can be double waterproofed, the waterproof performance of the joint member can be improved. In addition, since excessive deformation is suppressed by the connecting member, each water stop portion can be securely adhered to the outer wall material, and the waterproof performance can be further improved. In addition, since the joint cover parts protruding from each joint member are pressed against each other and elastically deformed, and the joint cover parts are in close contact with each other with no gap, the appearance of the joint part between the joint members is improved and rain water intrudes. Can be prevented.
[0037]
According to the joint member mounting structure described in claim 2, it is possible to prevent the joint member from extending in the length direction and causing problems such as deterioration in waterproofness and poor appearance.
[0038]
According to the method for joining joint members according to claim 3 , since the joint surface covering portions projecting from each joint member are pressed against each other and elastically deformed, and the joint surface covering portions closely adhere to each other without gaps. It is possible to improve the appearance of the part and prevent rainwater from entering.
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing a unit type building to which a joint member according to an embodiment of the present invention is applied.
FIG. 2 is a perspective view of a building unit constituting the unit building according to the embodiment.
FIG. 3 is a perspective view of a state in which the joint member according to the embodiment is press-fitted into a lateral joint space.
FIG. 4 is a cross-sectional view of a joint member according to the embodiment.
FIGS. 5A and 5B are a front view and a side view for explaining a method for joining joint members according to the embodiment. FIGS.
FIGS. 6A and 6B are a front view and a side view for explaining a joint method for a joint member according to a reference example . FIGS.
[Explanation of symbols]
6, 6A, 6B Outer wall material 7 Corner wall outer wall material 8 Horizontal joint space 9 Vertical joint space 20, 20A, 20B Joint member 22 Joint body 23, 24 Water stop portion 25 Joint surface covering portion 26 Connecting member 27 Wire material

Claims

A joint member mounting structure that is press-fitted from the outdoor side into a joint space formed between adjacent outer wall materials,
The joint member includes a joint main body extending in the press-fitting direction from the outdoor side toward the indoor side, a water stop portion provided on the indoor side of the joint main body to stop the joint space, and an outdoor side end of the joint main body. And a joint surface covering portion that closes the joint space,
The joint surface covering portion is shorter in the joint width direction than the water stop portion, is formed longer in the joint width direction than the joint space, is elastically deformable , and is in the joint width direction. The shape of the curve is a curved surface with a curved cross-section and warped to the water stop portion side,
The water stop portion is provided on the joint main body and closes the joint space by elastic deformation, and the water stop portion is provided on the outdoor side from the first water stop portion of the joint main body and closes the joint space by elastic deformation. A second water stop portion,
The first water stop portion and the second water stop portion are connected by a connecting member ,
At the joint portion between the end faces of the joint member, the joint member is cut substantially obliquely with respect to the length direction, so that the end face of the joint surface mounting portion is formed to protrude in the length direction, and
The joint is characterized in that both ends of the joint surface mounting part and the water stop part are pressed into the joint space while being elastically deformed to the outside by being caught by the outer wall material, and the end faces are pressed and joined together. Member mounting structure.

In the joint member mounting structure according to claim 1,
The joint member mounting structure characterized in that the joint body has a wire material along the length direction.

The eye ground member a bonding method for bonding at its end faces,
The joint member includes a joint main body extending in the press-fitting direction from the outdoor side toward the indoor side, a water stop portion provided on the indoor side of the joint main body to stop the joint space, and an outdoor side end of the joint main body. And a joint surface covering portion that closes the joint space,
The joint surface covering portion is shorter in the joint width direction than the water stop portion, is formed longer in the joint width direction than the joint space, is elastically deformable, and is in the joint width direction. The shape of the curve is a curved surface with a curved cross-section and warped to the water stop portion side,
The water stop portion is provided on the joint main body and closes the joint space by elastic deformation, and the water stop portion is provided on the outdoor side from the first water stop portion of the joint main body and closes the joint space by elastic deformation. A second water stop portion,
The first water stop portion and the second water stop portion are connected by a connecting member,
By cutting each joint member substantially obliquely with respect to the length direction, the end surfaces of the respective joint surface covering portions are formed so as to protrude in the length direction, and these joint members are pressed and joined together between the end surfaces. The joining method characterized by this.