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JP4155679B2 - Exterior wall repair structure - Google Patents
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JP4155679B2 - Exterior wall repair structure - Google Patents

Exterior wall repair structure Download PDF

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Publication number
JP4155679B2
JP4155679B2 JP29349499A JP29349499A JP4155679B2 JP 4155679 B2 JP4155679 B2 JP 4155679B2 JP 29349499 A JP29349499 A JP 29349499A JP 29349499 A JP29349499 A JP 29349499A JP 4155679 B2 JP4155679 B2 JP 4155679B2
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JP
Japan
Prior art keywords
wall
new
existing
smooth surface
mounting cap
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JP29349499A
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Japanese (ja)
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JP2001115624A (en
Inventor
貴裕 星川
英喜 滝口
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IG Kogyo Co Ltd
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IG Kogyo Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は建築、構築物の既存外壁面、特にALC部材(軽量気泡コンクリート)を中心とした既存外壁面を新規外壁で改修するための工法に関するものである。さらに詳しくは、新規の乾式壁材を取り付けるための固定具を確実に建物の躯体(下地材)に直接固定することによって、ALC外壁に損傷を与えず、しかも、新規外壁材の取付強度も充分な外壁改修構造に関するものである。
【0002】
【従来の技術】
従来、ALC部材を使用した外壁の改修は、古くなった既存のALC外壁をすべて撤去して、既存の躯体や胴縁等の壁下地材に新規外壁を形成する工法や、ALC外壁面に直接新規の乾式壁材を当接して、乾式壁材をコンクリートアンカー等の固定具を用いて、ALC壁そのものを壁下地材として利用して改修した工法が一般的に知られている。
【0003】
【発明が解決しようとする課題】
しかしながら、上記のように古くなった既存のALC等の外壁をすべて撤去して、既存の躯体や胴縁等の壁下地材に新規外壁を形成した工法では、撤去のための費用の増大や撤去した廃材の処理に課題があると共に、工事中は外壁が無い状態となり、工事期間中は建物内部を利用することができなくなる課題があった。
【0004】
また、ALC外壁をそのまま壁下地材として利用し、新規外壁材を施工する工法では、そもそも古くなったALC外壁は、その性質により凍害や経時変化で、ひび割れや一部脱落、強度劣化が進んでおり、これを壁下地として利用することは、取り付けられた新規壁材の取り付け強度に問題が有り、台風や地震等の外的衝撃により脱落したり、剥がれたりする危険を伴っていた。さらに、ALC外壁の表面には凹凸があり、そのまま新規外壁を施工すると凹凸による不陸調整が困難で、張り上がった新規壁面にも凹凸が発生し、美観性にも劣るものであった。
【0005】
【課題を解決するための手段】
本発明はこのような欠点を除去するため、軸体と、軸体側から面積の大きいワッシャ部、外面にネジ山を有するネジ部、工具の打ち込み部と合致する形状の保持部の順に形成した頭部からなり、軸体が既存外壁を貫通して下地材に打ち込まれる固定具と、固定具のネジ部のネジ山と合致するネジ山を有し外方に平滑面を有する取付キャップと、取付キャップの平滑面に取り付けられる胴縁と、胴縁に固定して既存外壁を覆う新規外壁材とから構成し、平滑面の位置は取付キャップを回転させることによって内外方に調整可能である外壁改修構造を提案する。
【0006】
【発明の実施の形態】
以下に、図面を用いて本発明に係る外壁改修構造について詳細に説明する。図1は本発明を用いてALC外壁を改修した代表的な一例を示す斜視図、図2はその断面図を表す説明図であり、Aは改修外壁、Bは下地材、Cは既存外壁、Dは固定具、Eは取付キャップ、Fは胴縁、Gは新規外壁材である。
【0007】
下地材Bは、建物の躯体および既存外壁Cの取り付け下地となるもので、図に示すような水平方向に配置された横架材からなり、さらに具体的にはH型鋼材、もしくは図示しないが角型鋼材、C型鋼材(リップ溝型鋼材)、L字アングル材、溝型鋼材等の鉄骨の下地材、もしくは木質の柱材等からなるものである。
【0008】
既存外壁Cは、H型鋼材等からなる下地材Bにアングルa、タテカベプレートbを介して固定されているものである。なお、図2は改修時期にきている一般的な挿入筋工法にて取り付けられているALC外壁の例を示しており、この他にも既存外壁Cの取り付け方は種々あり、これに限定されるものではない。また、cは既存外壁Cの目地部に充填される充填目地材である。
【0009】
固定具Dは、素材としては強度に優れた各種鋼材や、鉄、ステンレス、アルミニウム、チタン、繊維強化された各種合成樹脂等からなるもので、例えば図3(a)に示すように、少なくとも軸体1の先端部と頭部4の近傍にネジ部2、3を形成し、また頭部5には内方から順にワッシャ部5、ネジ部6、保持部7を有する構成のものを使用する。ワッシャ部5は既存外壁Cに当接する部分でネジ部6、保持部7と一体化していても分離していても良いもので、ワッシャ部5を既存外壁Cの表面に当接しつつネジ部2を下地材Bに到達させることによって、固定具Dを強固に固定する。ネジ部6はワッシャ部5の外方に形成し、ワッシャ部5の径以下の径を有するもので、取付キャップEに形成したネジ部8とねじ結合する部分である。保持部7は固定具Dを打ち込む際に、工具の打ち込み部と合致する形状に形成するものであり、ワッシャ部5の径以下の径を有するもので、ここでは六角ナット状に形成したものを使用する。なお、保持部7はその内部を空洞化することができる。
【0010】
また、固定具Dの取り付けピッチとしては、後記する新規外壁材Gに必要充分な取付強度(耐風圧強度)を満たす範囲内であれば任意で、例えば、水平方向のピッチは600、900、1200、1500mm位、垂直方向のピッチは、建物の種類によっても異なるが、一般的には1階層分の高さ3500mm位である。
【0011】
取付キャップEは、例えば図3(b)、(c)に示すような短尺筒状の形状のものを使用する。すなわち、取付キャップEの内面にはネジ部6とネジ結合する形状のネジ部8を形成し、また外方には平滑面9を形成する。固定具Dと取付キャップEは、図3(d)に示すようにネジ部6と、ネジ部8(図示せず)を合致させ、取付キャップEを回転させることで平滑面9の内外方についての位置を調整することができる。なお、既存外壁Cと胴縁Fの間には、少なくともワッシャ部5、保持部6、取付キャップEの厚さを合わせた分の幅を有する通気空間13が確保される。
【0012】
図4は、胴縁Fの一例を示すものである。胴縁Fは、平滑面9上に縦方向に取り付けられ、新規外壁材Gを取り付ける下地として機能するもので、断面略法ハット状の長尺体であり、平滑な固定面11と、固定面11と平行で固定面11よりも外方に突出した取付面12を有する。
【0013】
図5は、新規外壁材Gの一例を示すものである。すなわち、新規外壁材Gは、表面材23と裏面材24によって芯材25をサンドイッチした構造であり、その上下端にはそれぞれ嵌合可能な形状の雄型連結部21、雌型連結部22を形成するものである。新規外壁材Gを各雄型連結部21と雌型連結部22を係合しつつ上下に連続して配することで既存外壁Cの全面を覆い隠し、美観の良い改修外壁Aを完成させるものである。
【0014】
表面材23は金属板、例えば鉄、アルミニウム、銅、ステンレス、チタン、アルミ・亜鉛合金メッキ鋼板、ホーロー鋼板の一種(勿論、これらを各種色調に
塗装したカラー板も含む)や、プラスチック薄板、FRP、塩化ビニル、ポリカーボネイト等の合成樹脂板等からなるもの、およびこれらを組み合わせたものであり、これらの一種以上をロール成形、プレス成形、押出成形等によって形成したものである。雄型連結部21、雌型連結部22は、表面材23の上下端をそれぞれ嵌合可能な形状に形成したものである。
【0015】
裏面材24はアスベスト紙、クラフト紙、アスファルトフェルト、金属箔(Al、Fe、Pb、Cu)、合成樹脂シート、ゴムシート、布シート、石膏紙、水酸化アルミ紙、ガラス繊維不織布等の1種、または2種以上をラミネートしたもの、あるいは防水処理、難燃処理されたシート状物からなるもの、もしくは表面材23と同様の材質からなるものである。
【0016】
芯材25は新規外壁材Gに断熱性及び防、耐火性を有させるものであり、ポリウレタンフォーム、ポリイソシアヌレートフォーム、フェノールフォーム、塩化ビニルフォーム、ポリエチレンフォーム、ポリスチレンフォーム、ユリアフォーム等からなるものである。芯材25を有する新規外壁材Gを既存外壁Cの全表面に配することにより、改修外壁Aの外観を美しく仕上げるのはもとより、断熱性、及び防、耐火性を向上させることができる。
【0017】
以下に、本発明の改修外壁Aを形成する工程について説明する。まず図6のように、所定の工具を用いて固定具Dの軸体1を既存外壁Cを貫通させつつネジ部2の範囲を下地材Bまで到達させ、かつワッシャ部5を既存外壁Cの表面に当接させるように固定する。なお、固定具Dの打ち込みは、保持部7を工具の打ち込み部と合致させて行う。
【0018】
次に図7に示すように、ネジ部6とネジ部8をネジ結合して回転させることで、取付キャップEを既存外壁Bの表面側に取り付ける。ネジ部6とネジ部8をネジ結合としたことで、取付キャップEを回転させることによる平滑面9の位置の内外方向へ移動ができ、ALC外壁の厚みの違いへの対応や不陸の調整も可能となり、新規外壁の張り上がりの美観性を向上させることができる。
【0019】
次に図8に示すように、平滑面9上に固定面11を当接しつつ固定具α(ヘクス、テクス、スクリュウビス等)を打ち込むことにより、胴縁Fを固定する。そして図9に示すように、新規外壁材Gを取付面12上に固定具βによって固定し、下方から上方に雄型連結部21と雌型連結部22を係合しつつ貼り合わせていくことによって、図1に示すような改修外壁Aを形成するものである。
【0020】
以上説明したのは、本発明にかかる外壁改修構造の一実施例であり、図10〜図18(a)〜(c)に示すような構成を採ったり、部材を用いたりすることができる。図10、11は固定具Dの頭部4よりも径がやや大きく、ワッシャ部5から保持部7まで納まる程度の深さを有する溝部31を既存外壁Cに穿設し、胴縁Fの固定面11を平滑面9と既存外壁Cの表面の両方に当接しつつ取り付ける例である。この場合、溝部31を穿設した場合、既存外壁Cと新規外壁材Gの距離は小さくて済むようになり、通気空間13としては固定面11と取付面12の距離だけの幅が確保される。
【0021】
図12は、図13に示すような構成の胴縁Fを用いて壁構造Aを形成した例である。すなわち、ここに示す胴縁Fは長尺体である芯体14と、同じく長尺体であるカバー体15とを一体化し、カバー体15に設けた係止片16により芯体14の内部に保持するようにした例である。カバー体15は素材としては強度に優れた各種鋼材や、鉄、ステンレス、アルミニウム、チタン、繊維強化された各種合成樹脂等からなるものであり、カバー体15の内部に芯体14を介在することにより、胴縁Fの取付キャップEへの固着を強固に行うことができるのみならず、新規外壁材Gの胴縁Fへの固定をも強固ならしめることができる。なお図示しないが、芯体14とカバー体15の固着は、エアガン等を用いて行うことができる。
【0022】
図14(a)〜(e)に示す例は、固定具Dと取付キャップEの変形例であり、図14(a)は、ワッシャ部5とネジ部6の径を同一化(一体化)し、固定具Dの製造を容易ならしめた例である。図14(b)は平滑面9の面積を大きく形成し、胴縁Fの取り付けの際に固定具αを打ち込む範囲を広く取った例である。図14(c)はネジ部6のネジ山を保持部7寄りの所定範囲に形成した例である。図14(d)はワッシャ部5の軸体1側に薄厚で弾力性を有する弾性体10を配し、固定具αを打ち込んだ際に既存外壁Cの表面を傷めないようにすると共に、既存外壁Cの凹凸の吸収、防震性の向上に寄与するようにした例である。図14(e)は平滑面9の軸体1外側に薄厚で弾力性を有する弾性体10を配し、取付キャップEと新規外壁材Gの密着性の向上に寄与するようにした例である。
【0023】
図15(a)〜(j)は、平滑面9の形状の変形例である。平滑面9を変形することにより、胴縁Fの取り付けが容易になるのみならず、取付キャップEを回転させやすくなり、平滑面9の不陸調整が容易になるものである。
【0024】
図16(a)〜(j)は、胴縁Fの変形例である。胴縁Fを変形することにより、胴縁Fの取り付けが容易になるのみならず、新規外壁材Gの取り付けも容易ならしめることができる。
【0025】
図17(a)〜(g)、および図18(a)〜(c)は、新規外壁材Gの変形例である。新規外壁材Gの形状をを任意に選択することで、外観の優れた壁構造Aを形成することができるものである。なお、図18(b)に示す新規外壁材Gは、雄型連結部21内には防水性と耐火性を有する耐火性パッキング材26を、雌型連結部22内には防水性シーリング材27をそれぞれ介在させて、連結目地部の防水性と耐火性を向上し、さらに雄型連結部21と雌型連結部22の形状に合致するように任意に形成した不燃部材28を各連結部内に装着した例であり、不燃部材28は、新規外壁材G同士で形成される連結目地部の防火性、耐火性を向上するものであり、また、雄型連結部21と雌型連結部22の端部に充填することから、新規外壁材G端部における芯材25の欠肉を防止し、芯材25の発泡性や延展性をも向上させるものである。なお、不燃部材28はケイ酸カルシウム板、高密度フェノール樹脂板、木毛セメント板、ロックウール板、水酸化アルミニウム板等の1種以上の不燃性部材からなるものである。
【0026】
【発明の効果】
以上説明したように本発明に係る外壁改修構造によれば、▲1▼既存外壁を解体する必要がないので、施工工数を省略できると共に、工期を大幅に短縮することができ、しかも施工中の居住や利用に何等支障を来さない。▲2▼既存外壁上に新規外壁を形成するので、施工が簡単でコストを節約できる。▲3▼既存外壁と新規外壁材との2重壁工法となり、断熱性、防音性、防火性に富む工法となる。▲4▼固定具と取付キャップをネジ結合とし、伸縮機能を持たせることで、下地材の不陸の調整が容易に行え、施工が容易となると共に、乾式壁材の張り上がりの美観性が向上する。等の特徴、効果がある。
【図面の簡単な説明】
【図1】本発明に係る外壁改修構造の代表例を示す説明図である。
【図2】本発明に係る外壁改修構造の代表例を示す説明図である。
【図3】固定具と取付キャップの説明図である。
【図4】胴縁の説明図である。
【図5】新規外壁材の説明図である。
【図6】本発明に係る外壁改修構造の改修手順を示す説明図である。
【図7】本発明に係る外壁改修構造の改修手順を示す説明図である。
【図8】本発明に係る外壁改修構造の改修手順を示す説明図である。
【図9】本発明に係る外壁改修構造の改修手順を示す説明図である。
【図10】本発明に係る外壁改修構造のその他の例である。
【図11】本発明に係る外壁改修構造のその他の例である。
【図12】本発明に係る外壁改修構造のその他の例である。
【図13】本発明に係る外壁改修構造のその他の例である。
【図14】固定具と取付キャップのその他の例である。
【図15】取付キャップの平滑面のその他の例である。
【図16】胴縁のその他の例である。
【図17】新規外壁材のその他の例である。
【図18】新規外壁材のその他の例である。
【符号の説明】
α 固定具
β 固定具
a アングル
b タテカベプレート
c 充填目地材
A 改修外壁
B 下地材
C 既存外壁
D 固定具
E 取付キャップ
F 胴縁
G 新規外壁材
1 軸体
2 ネジ部
3 ネジ部
4 頭部
5 ワッシャ部
6 ネジ部
7 保持部
8 ネジ部
9 平滑面
10 弾性体
11 固定面
12 取付面
13 通気空間
14 芯体
15 カバー体
16 係止片
21 雄型連結部
22 雌型連結部
23 表面材
24 裏面材
25 芯材
26 耐火性パッキング材
27 防水性シーリング材
28 不燃材
31 溝部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a construction method for renovating existing outer wall surfaces of buildings and structures, particularly existing outer wall surfaces centering on ALC members (lightweight cellular concrete) with new outer walls. More specifically, by fixing the fixture for attaching the new dry-type wall material directly to the building frame (base material), the ALC outer wall is not damaged, and the new outer wall material has sufficient mounting strength. This is related to the renovation structure of the outer wall.
[0002]
[Prior art]
Conventionally, the renovation of the outer wall using ALC members has been done by removing all the existing ALC outer walls and forming a new outer wall on the wall base material such as the existing frame or trunk edge, or directly on the ALC outer wall surface. There is generally known a construction method in which a new dry wall material is brought into contact, the dry wall material is repaired by using a fixture such as a concrete anchor, and the ALC wall itself is used as a wall base material.
[0003]
[Problems to be solved by the invention]
However, in the construction method in which all the existing outer walls of ALC etc. are removed as described above and a new outer wall is formed on the wall base material such as the existing frame and trunk edge, the cost for removal is increased or removed. There is a problem in the treatment of the waste materials, and there is a problem that there is no outer wall during construction, and the inside of the building cannot be used during the construction period.
[0004]
In addition, in the construction method that uses the ALC outer wall as it is as the base material for the wall and constructs the new outer wall material, the old ALC outer wall is cracked, partly dropped, and deteriorated in strength due to frost damage and changes over time due to its properties. However, using this as a wall base has a problem in the mounting strength of the attached new wall material, and it has a risk of falling off or peeling off due to an external impact such as a typhoon or an earthquake. Furthermore, the surface of the ALC outer wall has irregularities, and if a new outer wall is constructed as it is, it is difficult to adjust the unevenness due to the irregularities, and irregularities are also generated on the new wall surface, which is inferior in aesthetics.
[0005]
[Means for Solving the Problems]
In order to eliminate such drawbacks, the present invention is a head formed in the order of a shaft body, a washer portion having a large area from the shaft body side, a screw portion having a thread on the outer surface, and a holding portion having a shape that matches the driving portion of the tool. And a fixing tool that has a shaft that penetrates the existing outer wall and is driven into the base material, a mounting cap that has a thread that matches the thread of the threaded portion of the fixing tool, and that has a smooth surface on the outside. The outer wall renovation is composed of a barrel edge that is attached to the smooth surface of the cap and a new outer wall material that is fixed to the barrel edge and covers the existing outer wall, and the position of the smooth surface can be adjusted inward and outward by rotating the attachment cap. Propose structure.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the outer wall repair structure according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a typical example of a modified ALC outer wall using the present invention, FIG. 2 is an explanatory view showing a sectional view thereof, A is a modified outer wall, B is a base material, C is an existing outer wall, D is a fixture, E is a mounting cap, F is a trunk edge, and G is a new outer wall material.
[0007]
The base material B is a base for mounting the building frame and the existing outer wall C, and is composed of horizontal members arranged in the horizontal direction as shown in the figure, and more specifically, an H-shaped steel material or not shown. It is composed of a steel base material such as a square steel material, a C-type steel material (lip groove steel material), an L-shaped angle material, a groove steel material, or a wooden pillar material.
[0008]
The existing outer wall C is fixed to a base material B made of an H-shaped steel material or the like via an angle a and a vertical plate b. Note that FIG. 2 shows an example of an ALC outer wall that is attached by a general insertion reinforcement method at the time of refurbishment. Besides this, there are various ways of attaching the existing outer wall C, and the present invention is limited to this. It is not something. Moreover, c is a filling joint material filled in the joint portion of the existing outer wall C.
[0009]
The fixture D is made of various steel materials having excellent strength, iron, stainless steel, aluminum, titanium, fiber reinforced various synthetic resins, etc. as a material. For example, as shown in FIG. Screws 2 and 3 are formed in the vicinity of the front end of the body 1 and the head 4, and a head 5 having a washer part 5, a screw part 6 and a holding part 7 in order from the inside is used. . The washer portion 5 is a portion that abuts against the existing outer wall C and may be integrated with or separated from the screw portion 6 and the holding portion 7, and the screw portion 2 while the washer portion 5 abuts against the surface of the existing outer wall C. By reaching the base material B, the fixture D is firmly fixed. The screw part 6 is formed outside the washer part 5 and has a diameter equal to or smaller than the diameter of the washer part 5, and is a part that is screw-coupled with the screw part 8 formed on the mounting cap E. The holding part 7 is formed in a shape that matches the driving part of the tool when the fixing tool D is driven, and has a diameter equal to or smaller than the diameter of the washer part 5. use. Note that the holding portion 7 can be hollow.
[0010]
Further, the mounting pitch of the fixture D is arbitrary as long as it is within a range satisfying a necessary and sufficient mounting strength (wind pressure resistance) for the new outer wall material G to be described later. For example, the horizontal pitch is 600, 900, 1200. The pitch in the vertical direction of about 1500 mm varies depending on the type of building, but is generally about 3500 mm in height for one layer.
[0011]
As the mounting cap E, for example, a short cylindrical shape as shown in FIGS. 3B and 3C is used. That is, a screw portion 8 having a shape that is screw-coupled with the screw portion 6 is formed on the inner surface of the mounting cap E, and a smooth surface 9 is formed on the outer side. As shown in FIG. 3D, the fixing tool D and the mounting cap E are aligned with the screw portion 6 and the screw portion 8 (not shown), and the mounting cap E is rotated so that the smooth surface 9 is inward and outward. Can be adjusted. In addition, between the existing outer wall C and the trunk edge F, a ventilation space 13 having a width corresponding to at least the thickness of the washer portion 5, the holding portion 6, and the mounting cap E is secured.
[0012]
FIG. 4 shows an example of the trunk edge F. As shown in FIG. The trunk edge F is mounted on the smooth surface 9 in the vertical direction and functions as a base for mounting the new outer wall material G. The trunk edge F is a long body having a substantially cross-sectional hat shape, and includes a smooth fixing surface 11 and a fixing surface. 11 has a mounting surface 12 which is parallel to 11 and protrudes outward from the fixed surface 11.
[0013]
FIG. 5 shows an example of the new outer wall material G. That is, the new outer wall material G has a structure in which a core material 25 is sandwiched between a front surface material 23 and a back surface material 24, and a male connection portion 21 and a female connection portion 22 having shapes that can be fitted to the upper and lower ends, respectively. To form. A new outer wall material G is continuously arranged vertically while engaging each male connecting portion 21 and female connecting portion 22, thereby covering the entire surface of the existing outer wall C and completing a modified outer wall A having a good appearance. It is.
[0014]
The surface material 23 is a metal plate such as iron, aluminum, copper, stainless steel, titanium, an aluminum / zinc alloy plated steel plate, a type of enameled steel plate (of course, including color plates coated with various colors), a plastic thin plate, FRP These are composed of synthetic resin plates such as vinyl chloride and polycarbonate, and combinations thereof, and one or more of these are formed by roll molding, press molding, extrusion molding or the like. The male connecting part 21 and the female connecting part 22 are formed so that the upper and lower ends of the surface material 23 can be fitted to each other.
[0015]
Back material 24 is one type of asbestos paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber nonwoven fabric, etc. Or a laminate of two or more types, a sheet-like material that has been waterproofed or flame-retardant, or a material similar to the surface material 23.
[0016]
The core material 25 is a new outer wall material G that has heat insulation, prevention and fire resistance, and is made of polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, etc. It is. By arranging the new outer wall material G having the core material 25 on the entire surface of the existing outer wall C, it is possible to improve the heat insulation, prevention, and fire resistance as well as to finish the appearance of the modified outer wall A beautifully.
[0017]
Below, the process of forming the repair outer wall A of this invention is demonstrated. First, as shown in FIG. 6, the shaft 1 of the fixture D is made to penetrate the existing outer wall C using a predetermined tool to reach the range of the screw portion 2 to the base material B, and the washer portion 5 is attached to the existing outer wall C. Fix so that it touches the surface. The fixing tool D is driven in such a manner that the holding portion 7 is matched with the tool driving portion.
[0018]
Next, as shown in FIG. 7, the attachment cap E is attached to the surface side of the existing outer wall B by screwing the screw portion 6 and the screw portion 8 and rotating them. Since the screw 6 and the screw 8 are screwed together, the position of the smooth surface 9 can be moved inward and outward by rotating the mounting cap E, corresponding to differences in the thickness of the ALC outer wall, and adjustment of unevenness It is also possible to improve the aesthetic appearance of the new outer wall.
[0019]
Next, as shown in FIG. 8, the trunk edge F is fixed by driving a fixture α (hex, tex, screw screw, etc.) while abutting the fixed surface 11 on the smooth surface 9. Then, as shown in FIG. 9, the new outer wall material G is fixed onto the mounting surface 12 by the fixing device β, and the male connecting portion 21 and the female connecting portion 22 are bonded together while engaging the male connecting portion 21 and the female connecting portion 22 from below. Thus, a modified outer wall A as shown in FIG. 1 is formed.
[0020]
What has been described above is one embodiment of the outer wall repair structure according to the present invention, and the configuration shown in FIGS. 10 to 18 (a) to (c) can be adopted, or a member can be used. 10 and 11, a groove 31 having a diameter slightly larger than the head 4 of the fixture D and having a depth enough to fit from the washer portion 5 to the holding portion 7 is formed in the existing outer wall C to fix the trunk edge F. In this example, the surface 11 is attached in contact with both the smooth surface 9 and the surface of the existing outer wall C. In this case, when the groove portion 31 is drilled, the distance between the existing outer wall C and the new outer wall material G can be small, and the width of only the distance between the fixed surface 11 and the mounting surface 12 is secured as the ventilation space 13. .
[0021]
FIG. 12 shows an example in which the wall structure A is formed using the trunk edge F having the configuration shown in FIG. That is, the trunk edge F shown here integrates the core body 14 which is a long body and the cover body 15 which is also a long body into the core body 14 by the locking piece 16 provided on the cover body 15. This is an example of holding. The cover body 15 is made of various steel materials having excellent strength, iron, stainless steel, aluminum, titanium, various fiber-reinforced synthetic resins, and the like, and the core body 14 is interposed inside the cover body 15. Accordingly, not only can the body edge F be firmly fixed to the mounting cap E, but also the fixing of the new outer wall material G to the body edge F can be strengthened. Although not shown, the core body 14 and the cover body 15 can be fixed using an air gun or the like.
[0022]
The example shown in FIGS. 14A to 14E is a modification of the fixture D and the mounting cap E, and FIG. 14A has the same diameter (integrated) for the washer portion 5 and the screw portion 6. In this example, the fixture D is easily manufactured. FIG. 14B is an example in which the area of the smooth surface 9 is formed large and the range in which the fixture α is driven when attaching the trunk edge F is wide. FIG. 14C shows an example in which the thread of the screw portion 6 is formed in a predetermined range near the holding portion 7. FIG. 14D shows a thin elastic elastic body 10 on the side of the shaft body 1 of the washer portion 5 so that the surface of the existing outer wall C is not damaged when the fixture α is driven. This is an example that contributes to the absorption of unevenness of the outer wall C and the improvement of seismic resistance. FIG. 14E shows an example in which a thin and elastic elastic body 10 is arranged outside the shaft body 1 of the smooth surface 9 so as to contribute to the improvement of the adhesion between the mounting cap E and the new outer wall material G. .
[0023]
FIGS. 15A to 15J are modification examples of the shape of the smooth surface 9. By deforming the smooth surface 9, not only the attachment of the trunk edge F is facilitated, but also the attachment cap E is easily rotated, and the smoothness adjustment of the smooth surface 9 is facilitated.
[0024]
16A to 16J are modified examples of the trunk edge F. FIG. By deforming the trunk edge F, not only the trunk edge F can be easily attached, but also the new outer wall material G can be easily attached.
[0025]
FIGS. 17A to 17G and FIGS. 18A to 18C are modified examples of the new outer wall material G. FIG. By arbitrarily selecting the shape of the new outer wall material G, the wall structure A having an excellent appearance can be formed. 18B, the new outer wall material G has a waterproof and fireproof packing material 26 in the male connecting portion 21 and a waterproof sealing material 27 in the female connecting portion 22. In each of the connecting portions, non-combustible members 28 formed arbitrarily so as to match the shape of the male connecting portion 21 and the female connecting portion 22 are improved. In this example, the non-combustible member 28 improves the fire resistance and fire resistance of the joint joint formed by the new outer wall materials G. The male joint 21 and the female joint 22 Since the end portion is filled, the core material 25 is prevented from being thinned at the end portion of the new outer wall material G, and the foamability and spreadability of the core material 25 are also improved. The incombustible member 28 is made of one or more incombustible members such as a calcium silicate plate, a high-density phenolic resin plate, a wood wool cement plate, a rock wool plate, and an aluminum hydroxide plate.
[0026]
【The invention's effect】
As described above, according to the outer wall renovation structure according to the present invention, (1) it is not necessary to dismantle the existing outer wall, so that the number of construction steps can be omitted, the construction period can be greatly shortened, and the construction is underway. There will be no hindrance to residence and use. (2) Since a new outer wall is formed on the existing outer wall, construction is easy and cost can be saved. (3) A double wall construction method with an existing outer wall and a new outer wall material, and a construction method rich in heat insulation, soundproofing and fireproofing. (4) Fixing and mounting caps are screwed together to provide an expansion / contraction function, making it easy to adjust the unevenness of the base material, facilitating construction and improving the aesthetics of the dry wall material. improves. There are features and effects.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a typical example of an outer wall repair structure according to the present invention.
FIG. 2 is an explanatory view showing a representative example of an outer wall repair structure according to the present invention.
FIG. 3 is an explanatory diagram of a fixture and a mounting cap.
FIG. 4 is an explanatory diagram of a trunk edge.
FIG. 5 is an explanatory diagram of a new outer wall material.
FIG. 6 is an explanatory view showing a repair procedure of the outer wall repair structure according to the present invention.
FIG. 7 is an explanatory diagram showing a repair procedure of the outer wall repair structure according to the present invention.
FIG. 8 is an explanatory view showing a repair procedure of the outer wall repair structure according to the present invention.
FIG. 9 is an explanatory view showing a repair procedure of the outer wall repair structure according to the present invention.
FIG. 10 is another example of the outer wall repair structure according to the present invention.
FIG. 11 is another example of the outer wall repair structure according to the present invention.
FIG. 12 is another example of the outer wall repair structure according to the present invention.
FIG. 13 is another example of the outer wall repair structure according to the present invention.
FIG. 14 is another example of a fixture and a mounting cap.
FIG. 15 is another example of the smooth surface of the mounting cap.
FIG. 16 is another example of the trunk edge.
FIG. 17 is another example of a new outer wall material.
FIG. 18 is another example of a new outer wall material.
[Explanation of symbols]
α Fixing tool β Fixing tool a Angle b Vertical cover plate c Filling joint material A Renovation outer wall B Base material C Existing outer wall D Fixing tool E Mounting cap F Trunk edge G New outer wall material 1 Shaft body 2 Screw part 3 Screw part 4 Head DESCRIPTION OF SYMBOLS 5 Washer part 6 Screw part 7 Holding part 8 Screw part 9 Smooth surface 10 Elastic body 11 Fixing surface 12 Mounting surface 13 Ventilation space 14 Core body 15 Cover body 16 Locking piece 21 Male connection part 22 Female connection part 23 Surface material 24 Back material 25 Core material 26 Fireproof packing material 27 Waterproof sealing material 28 Non-combustible material 31 Groove

Claims (1)

軸体と、軸体側から面積の大きいワッシャ部、外面にネジ山を有するネジ部、工具の打ち込み部と合致する形状の保持部の順に形成した頭部からなり、軸体が既存外壁を貫通して下地材に打ち込まれる固定具と、固定具のネジ部のネジ山と合致するネジ山を有し外方に平滑面を有する取付キャップと、取付キャップの平滑面に取り付けられる胴縁と、胴縁に固定して既存外壁を覆う新規外壁材とから構成し、平滑面の位置は取付キャップを回転させることによって内外方に調整可能であることを特徴とする外壁改修構造。It consists of a shaft body, a washer part with a large area from the shaft body side, a screw part having a thread on the outer surface, and a head part formed in order of a holding part matching the tool driving part, and the shaft body penetrates the existing outer wall. A fixing tool that is driven into the base material, a mounting cap that has a thread that matches the thread of the threaded portion of the fixing tool and that has a smooth surface on the outside, a body edge that is mounted on the smooth surface of the mounting cap, An outer wall repair structure comprising a new outer wall material fixed to an edge and covering an existing outer wall, and the position of the smooth surface can be adjusted inward and outward by rotating a mounting cap.
JP29349499A 1999-10-15 1999-10-15 Exterior wall repair structure Expired - Fee Related JP4155679B2 (en)

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