JP4684797B2 - Exterior wall construction structure and base metal fittings used therefor - Google Patents

Exterior wall construction structure and base metal fittings used therefor Download PDF

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JP4684797B2
JP4684797B2 JP2005232324A JP2005232324A JP4684797B2 JP 4684797 B2 JP4684797 B2 JP 4684797B2 JP 2005232324 A JP2005232324 A JP 2005232324A JP 2005232324 A JP2005232324 A JP 2005232324A JP 4684797 B2 JP4684797 B2 JP 4684797B2
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insulating material
heat insulating
metal fitting
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contact plate
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伊藤　　博
康孝 辻
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Nichiha Corp
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本発明は、構造躯体の前面に樹脂発泡体からなる断熱材を配設してなる外壁施工構造及びこれに用いる下地金具に関する。   The present invention relates to an outer wall construction structure in which a heat insulating material made of a resin foam is disposed on the front surface of a structural housing and a base metal fitting used therefor.

従来より、図９、図１０に示すごとく、構造躯体９２の前面９２１に樹脂発泡体からなる断熱材９３を配設した、いわゆる外断熱工法による外壁施工構造９がある（特許文献１参照）。
該外壁施工構造９においては、構造躯体９２の前面９２１に配設した上記断熱材９３の前面９３１に、胴縁９９を配設し、該胴縁９９の前面９９１に固定した留め付け金具９４によって、外壁板９５を留め付けている。
上記胴縁９９によって、断熱材９３と外壁板９５との間の通気層９１２を確保して、外壁施工構造９の耐久性を確保している。 Conventionally, as shown in FIGS. 9 and 10, there is an outer wall construction structure 9 by a so-called outer heat insulation method in which a heat insulating material 93 made of a resin foam is disposed on a front surface 921 of a structural housing 92 (see Patent Document 1).
In the outer wall construction structure 9, a body rim 99 is disposed on the front surface 931 of the heat insulating material 93 disposed on the front surface 921 of the structural housing 92, and is fastened by a fastener 94 fixed to the front surface 991 of the body rim 99. The outer wall plate 95 is fastened.
The trunk edge 99 secures the ventilation layer 912 between the heat insulating material 93 and the outer wall plate 95 to ensure the durability of the outer wall construction structure 9.

しかしながら、上記従来の外壁施工構造９は、上記のごとく胴縁９９を配設する必要があるため、構成部材が多く、施工効率、材料コスト等の点において優れているとはいえない。
そこで、胴縁を配設することなく、通気層を形成するためのスペーサ部を有する留め付け金具（例えば特許文献２参照）を、断熱材の前面に直接配置することが考えられる。 However, since the conventional outer wall construction structure 9 needs to be provided with the trunk edge 99 as described above, it has many components and cannot be said to be excellent in terms of construction efficiency, material cost, and the like.
Therefore, it is conceivable to directly arrange a fastener (see, for example, Patent Document 2) having a spacer portion for forming a ventilation layer without disposing a trunk edge on the front surface of the heat insulating material.

しかし、留め付け金具を断熱材の前面に直接配置すると、ビスによって留め付け金具を構造躯体に固定する際に、断熱材が変形して、留め付け金具が部分的に断熱材に埋まってしまい、傾斜してしまうおそれがある。或いは、断熱材の変形に伴い、留め付け金具に局部的な応力が働き、留め付け金具が変形して傾斜してしまうおそれがある。
これにより、留め付け金具によって留め付けられる外壁板に不陸が生じたり、留め付け強度が低下したりするおそれがある。即ち、外壁板の留め付け安定性を確保することが困難となるおそれがある。 However, when the fastening bracket is arranged directly on the front surface of the heat insulating material, when the fastening bracket is fixed to the structural housing with screws, the heat insulating material is deformed, and the fastening bracket is partially buried in the heat insulating material, There is a risk of tilting. Alternatively, as the heat insulating material is deformed, a local stress acts on the fastener, and the fastener may be deformed and inclined.
Thereby, unevenness may occur in the outer wall plate fastened by the fastening bracket, or the fastening strength may be reduced. That is, it may be difficult to ensure the fastening stability of the outer wall plate.

特開２００５−２７４７号公報JP 2005-2747 A 特開２００２−１２９７２９号公報JP 2002-129729 A

本発明は、かかる従来の問題点に鑑みてなされたもので、施工性、外壁板の留め付け安定性に優れた外壁施工構造及びこれに用いる下地金具を提供しようとするものである。   The present invention has been made in view of such conventional problems, and an object of the present invention is to provide an outer wall construction structure excellent in workability and fastening stability of an outer wall plate and a base metal fitting used therefor.

第１の発明は、建物の構造躯体と、該構造躯体の前面に配設された樹脂発泡体からなる断熱材と、該断熱材の前面に配設されると共に上記構造躯体にビスによって固定された留め付け金具と、該留め付け金具によって上記構造躯体に留め付けられた外壁板とを有する外壁施工構造であって、
上記断熱材と上記外壁板との間には、通気層が形成されており、
上記断熱材には、上記留め付け金具の後面を当接させる下地金具が配設されており、
該下地金具は、上記留め付け金具の後面に面接触する平板状の当接板部と、該当接板部から後方へ立設した脚部とを有し、上記当接板部には、上記ビスを挿通させる開口部を設けてなり、
上記下地金具は、上記脚部を上記断熱材に差し込むと共に、上記当接板部を上記断熱材の前面と略同一平面上に配した状態で、上記断熱材に配設してあることを特徴とする外壁施工構造にある（請求項１）。 According to a first aspect of the present invention, there is provided a structural housing of a building, a heat insulating material made of a resin foam disposed in front of the structural housing, and disposed on the front surface of the heat insulating material and fixed to the structural housing with screws. And an outer wall construction structure having an outer wall plate fastened to the structural frame by the fastening bracket,
A ventilation layer is formed between the heat insulating material and the outer wall plate,
The heat insulating material is provided with a base metal fitting that abuts the rear surface of the fixing metal,
The base metal fitting has a flat contact plate portion that is in surface contact with the rear surface of the fastener, and a leg portion standing rearward from the corresponding contact plate portion. An opening for inserting a screw is provided,
The base metal fitting is disposed on the heat insulating material in a state where the leg portion is inserted into the heat insulating material and the contact plate portion is arranged on substantially the same plane as the front surface of the heat insulating material. The outer wall construction structure is as follows.

次に、本発明の作用効果につき説明する。
上記外壁施工構造においては、上記断熱材の前面に上記留め付け金具を配置し、該留め付け金具によって外壁板を留め付けている。それ故、断熱材と外壁板との間に胴縁等を配設する必要がない。そのため、上記外壁施工構造を施工するに当たり、外壁板を配設する前に胴縁等を固定する必要がなく、施工効率を向上させることができる。また、材料コストを低減することができる。 Next, the effects of the present invention will be described.
In the outer wall construction structure, the fastening metal fitting is disposed on the front surface of the heat insulating material, and the outer wall plate is fastened by the fastening metal fitting. Therefore, it is not necessary to arrange a trunk edge or the like between the heat insulating material and the outer wall plate. Therefore, when constructing the outer wall construction structure, it is not necessary to fix the trunk edge or the like before disposing the outer wall plate, and construction efficiency can be improved. Further, the material cost can be reduced.

また、上記外壁施工構造においては、断熱材に配設した上記下地金具に、留め付け金具の後面を当接させている。それ故、断熱材の前面に配置した留め付け金具をビスによって構造躯体に固定する際に、留め付け金具の一部が断熱材に埋まってしまったり、断熱材の変形に伴い留め付け金具が変形したりすることを防ぐことができる。即ち、留め付け金具の後面が下地金具の当接板部に面接触していることにより、留め付け金具がビスから受ける応力を当接板部の前面において分散して受けることができる。これにより、留め付け金具が断熱材の前面即ち構造躯体の前面に対して傾斜したり、留め付け金具が変形したりすることを防ぐことができる。
これにより、外壁板の留め付け安定性を確保することができる。 Moreover, in the said outer wall construction structure, the rear surface of a fastener is made to contact | abut to the said base metal fitting arrange | positioned at the heat insulating material. Therefore, when the fasteners placed on the front surface of the insulation are fixed to the structural housing with screws, some of the fasteners are buried in the insulation, or the fasteners deform as the insulation is deformed. Can be prevented. That is, since the rear surface of the fastener is in surface contact with the contact plate portion of the base metal, the stress received by the fastener from the screw can be distributed and received on the front surface of the contact plate portion. Thereby, it can prevent that a fastening metal fitting inclines with respect to the front surface of a heat insulating material, ie, the front surface of a structural housing, or a fastening metal fitting deform | transforms.
Thereby, the fastening stability of an outer wall board is securable.

また、上記下地金具は上記脚部を有し、該脚部を断熱材に差し込んでいる。そのため、施工時において、下地金具を断熱材における所望の位置に容易に配設し、その後、留め付け金具を下地金具の当接板部に面接触させて容易に配設することができる。従って、施工容易であると共に、下地金具の位置ずれを容易に防ぐことができる。
また、上記断熱材と上記外壁板との間には、通気層が形成されているため、外壁施工構造の耐久性を確保することができる。 Moreover, the said base metal fitting has the said leg part, and inserts this leg part in a heat insulating material. Therefore, at the time of construction, the base metal can be easily disposed at a desired position in the heat insulating material, and thereafter, the fastening metal can be easily disposed in surface contact with the contact plate portion of the base metal. Therefore, it is easy to construct, and the base metal can be easily prevented from being displaced.
Moreover, since the ventilation layer is formed between the said heat insulating material and the said outer wall board, durability of an outer wall construction structure is securable.

以上のごとく、本発明によれば、施工性、外壁板の留め付け安定性に優れた外壁施工構造を提供することができる。   As described above, according to the present invention, it is possible to provide an outer wall construction structure that is excellent in workability and stability of fastening an outer wall plate.

第２の発明は、建物の構造躯体の前面に配置される発泡樹脂成形体からなる断熱材に配設され、上記構造躯体に外壁板を留め付けるための留め付け金具の後面を当接させる下地金具であって、
上記留め付け金具の後面に面接触する平板状の当接板部と、該当接板部から後方へ立設した脚部とを有し、上記当接板部には開口部を設けてなり、
上記脚部を上記断熱材に差し込むと共に、上記当接板部を上記断熱材の前面と略同一平面上に配することができるよう構成してあることを特徴とする下地金具にある（請求項６）。 2nd invention is arrange | positioned at the heat insulating material which consists of a foamed resin molding arrange | positioned in the front surface of the structural housing of a building, and the foundation | substrate which contact | abuts the rear surface of the metal fitting for fastening an outer wall board to the said structural housing Metal fittings,
It has a flat contact plate portion that is in surface contact with the rear surface of the fastening bracket, and a leg portion standing rearward from the corresponding contact plate portion, and the contact plate portion is provided with an opening,
The base metal fitting is characterized in that the leg portion is inserted into the heat insulating material, and the contact plate portion is arranged on substantially the same plane as the front surface of the heat insulating material. 6).

次に、本発明の作用効果につき説明する。
上記下地金具は、断熱材に配設し、当接板部に留め付け金具の後面を面接触させて留め付け金具を配設することができる。そのため、下地金具を用いることにより、胴縁等を断熱材の前面に配設することなく、留め付け金具を断熱材の前面に配設して、外壁板を留め付けることが可能となる。そのため、外壁板を配設する前に、断熱材の前面に胴縁等を固定する必要がなく、施工効率を向上させることができる。また、材料コストを低減することができる。 Next, the effects of the present invention will be described.
The base metal fitting can be arranged on the heat insulating material, and the fastening metal fitting can be arranged by bringing the rear surface of the metal fitting into surface contact with the contact plate portion. Therefore, by using the base metal fitting, it is possible to fasten the outer wall plate by arranging the fastening metal fitting on the front surface of the heat insulating material without arranging the trunk edge or the like on the front surface of the heat insulating material. Therefore, it is not necessary to fix a trunk edge or the like on the front surface of the heat insulating material before disposing the outer wall plate, and the construction efficiency can be improved. Further, the material cost can be reduced.

また、上記下地金具は上記当接板部を有する。それ故、上記下地金具を断熱材に配設して留め付け金具の後面を面接触させることにより、断熱材の前面に配置した留め付け金具をビスによって構造躯体に固定する際に、留め付け金具の一部が断熱材に埋まってしまったり、断熱材の変形に伴い留め付け金具が変形したりすることを防ぐことができる。即ち、留め付け金具の後面が下地金具の当接板部に面接触させることにより、留め付け金具がビスから受ける応力を当接板部の前面において分散して受けることができる。これにより、留め付け金具が断熱材の前面即ち構造躯体の前面に対して傾斜したり、留め付け金具が変形したりすることを防ぐことができる。
これにより、外壁板の留め付け安定性を確保することができる。 Moreover, the said base metal fitting has the said contact plate part. Therefore, when the base metal fitting is arranged on the heat insulating material and the rear surface of the metal fitting is brought into surface contact, the fixing metal fitting arranged on the front surface of the heat insulating material is fixed to the structural housing with a screw. Can be prevented from being partially embedded in the heat insulating material, or the fastening metal fitting being deformed with the deformation of the heat insulating material. That is, when the rear surface of the fastener is brought into surface contact with the contact plate portion of the base metal, the stress received by the fastener from the screw can be distributed and received on the front surface of the contact plate portion. Thereby, it can prevent that a fastening metal fitting inclines with respect to the front surface of a heat insulating material, ie, the front surface of a structural housing, or a fastening metal fitting deform | transforms.
Thereby, the fastening stability of an outer wall board is securable.

また、上記下地金具は上記脚部を有し、該脚部を断熱材に差し込むことができる。そのため、施工時において、下地金具を断熱材における所望の位置に容易に配設し、その後、留め付け金具を下地金具の当接板部に面接触させて容易に配設することができる。従って、施工容易であると共に、下地金具の位置ずれを容易に防ぐことができる。   Moreover, the said base metal fitting has the said leg part, and can insert this leg part into a heat insulating material. Therefore, at the time of construction, the base metal can be easily disposed at a desired position in the heat insulating material, and thereafter, the fastening metal can be easily disposed in surface contact with the contact plate portion of the base metal. Therefore, it is easy to construct, and the base metal can be easily prevented from being displaced.

以上のごとく、本発明によれば、施工性、外壁板の留め付け安定性を向上させることができる下地金具を提供することができる。   As described above, according to the present invention, it is possible to provide a base metal fitting that can improve the workability and the fixing stability of the outer wall plate.

上記第１の発明（請求項１）及び第２の発明（請求項６）において、上記断熱材を構成する樹脂発泡体としては、例えば、発泡ポリスチレン、発泡ウレタン等がある。
また、上記構造躯体は、例えば、形鋼等の鋼材からなるものであっても、木材からなるものであってもよく、例えば、形鋼等の鋼材からなるスチール枠体、木造の軸組構造、枠組構造の構造躯体とすることができる。
また、上記構造躯体は、前面に合板等の面材を配置してなるものであってもよい。 In the first invention (Invention 1) and the second invention (Invention 6), examples of the resin foam constituting the heat insulating material include foamed polystyrene and foamed urethane.
Further, the structural frame may be made of a steel material such as a shape steel, or may be made of wood, for example, a steel frame made of a steel material such as a shape steel, or a wooden frame structure. The frame can be a structural frame.
Moreover, the said structural housing may arrange | position surface materials, such as a plywood, on the front surface.

また、上記通気層は、例えば１２ｍｍ以上の幅を有する。
また、「上記当接板部を上記断熱材の前面と略同一平面上に配した状態」とは、当接板部と断熱材の前面との前後距離が、例えば１ｍｍ以下の状態をいい、例えば、当接板部の厚み程度の誤差は「略同一平面上」を満たす。
なお、本明細書においては、建物の外側方向を「前」、内側方向を「後」として表す。下地金具等の各部材についても、施工状態を基準にして前後左右上下を表す。 Moreover, the said ventilation layer has a width | variety of 12 mm or more, for example.
In addition, “the state in which the abutting plate portion is arranged on substantially the same plane as the front surface of the heat insulating material” refers to a state in which the front and back distance between the abutting plate portion and the front surface of the heat insulating material is, for example, 1 mm or less For example, an error about the thickness of the contact plate portion satisfies “substantially on the same plane”.
In this specification, the outside direction of the building is represented as “front” and the inside direction is represented as “rear”. For each member such as the base metal fitting, the front, rear, left and right and up and down are expressed based on the construction state.

次に、上記第１の発明（請求項１）において、上記下地金具は、上記脚部を複数本有することが好ましい（請求項２）。
この場合には、上記下地金具を安定して断熱材に固定することができる。それ故、前面に配設する留め付け金具の傾斜を効果的に防ぎ、外壁板の留め付け安定性を向上させることができる。 Next, in the first invention (invention 1), the base metal fitting preferably has a plurality of the leg portions (invention 2).
In this case, the base metal fitting can be stably fixed to the heat insulating material. Therefore, it is possible to effectively prevent the fastening brackets disposed on the front face from being inclined and improve the fastening stability of the outer wall plate.

また、上記下地金具は、上記当接板部の外形を略矩形状に形成してなり、該当接板部の４つの角部からそれぞれ上記脚部を立設してなることが好ましい（請求項３）。
この場合には、上記下地金具をより安定して断熱材に固定することができる。それ故、前面に配設する留め付け金具の傾斜を一層効果的に防ぎ、外壁板の留め付け安定性をより向上させることができる。 Further, the base metal fitting is preferably formed by forming the outer shape of the abutting plate portion in a substantially rectangular shape, and standing the leg portions from four corners of the corresponding plate portion. 3).
In this case, the base metal fitting can be more stably fixed to the heat insulating material. Therefore, it is possible to more effectively prevent the fastening metal member disposed on the front face from being inclined and further improve the fastening stability of the outer wall plate.

また、上記下地金具は、上記当接板部の上辺に、前方へ突出した突出部を設けてなり、該突出部に上記留め付け金具の上端部を当接させていることが好ましい（請求項４）。
この場合には、上記下地金具を断熱材に取り付けた後、上記留め付け金具を配設する際に、留め付け金具の位置決めを容易に行うことができる。それ故、一層施工性に優れた外壁施工構造を得ることができる。
なお、上記突出部は、下方へ折返して鉤形状とすることもできる。この場合には、留め付け金具の上端部を鉤形状の突出部に係合させることができ、より正確な留め付け金具の位置決めを行うことができる。 Further, the base metal fitting is preferably provided with a protruding portion protruding forward on the upper side of the contact plate portion, and the upper end portion of the fastening metal fitting is in contact with the protruding portion. 4).
In this case, after attaching the base metal fitting to the heat insulating material, the positioning of the fastener can be easily performed when the fastener is disposed. Therefore, it is possible to obtain an outer wall construction structure with further excellent workability.
In addition, the said protrusion part can also be turned down and can be made into a hook shape. In this case, the upper end portion of the fastener can be engaged with the hook-shaped protrusion, and the fastener can be positioned more accurately.

また、上記脚部は、上記構造躯体の前面に当接していることが好ましい（請求項５）。
この場合には、当接板部と断熱材の前面とが略同一平面上に配された状態から、上記下地金具が更に後方へ後退することを確実に防ぐことができる。それ故、外壁板の留め付け安定性を一層向上させることができる。
また、上記脚部の後端は、上記構造躯体に突き刺さった状態となっていてもよい。 Moreover, it is preferable that the said leg part is contact | abutting to the front surface of the said structural housing (Claim 5).
In this case, it is possible to reliably prevent the base metal from moving backward further from the state in which the contact plate portion and the front surface of the heat insulating material are arranged on substantially the same plane. Therefore, the fastening stability of the outer wall plate can be further improved.
Further, the rear end of the leg portion may be in a state of being pierced into the structural housing.

次に、上記第２の発明（請求項６）において、上記脚部は、複数本形成してあることが好ましい（請求項７）。
この場合には、上記下地金具を安定して断熱材に固定することができる。 Next, in the second invention (invention 6), it is preferable that a plurality of the leg portions are formed (invention 7).
In this case, the base metal fitting can be stably fixed to the heat insulating material.

また、上記当接板部は、略矩形状の外形を有し、該当接板部の４つの角部からそれぞれ上記脚部を立設してなることが好ましい（請求項８）。
この場合には、上記下地金具をより安定して断熱材に固定することができる。 Moreover, it is preferable that the said contact board part has a substantially rectangular external shape, and each said leg part is standingly arranged from the four corner | angular parts of the said contact plate part (Claim 8).
In this case, the base metal fitting can be more stably fixed to the heat insulating material.

また、上記当接板部の上辺には、前方へ突出した突出部を設けてなることが好ましい（請求項９）。
この場合には、上記下地金具を断熱材に取り付けた後、上記留め付け金具を配設する際に、留め付け金具の上端部を上記突出部に当接させることにより、留め付け金具の位置決めを容易に行うことができる。
なお、上記突出部は、下方へ折返して鉤形状とすることもできる。 Further, it is preferable that a protruding portion protruding forward is provided on the upper side of the contact plate portion.
In this case, after the base metal fitting is attached to the heat insulating material, when the fastening metal fitting is disposed, the upper end portion of the fastening metal fitting is brought into contact with the protruding portion, thereby positioning the fastening metal fitting. It can be done easily.
In addition, the said protrusion part can also be turned down and can be made into a hook shape.

また、上記脚部は、上記断熱材の厚みと略同等の長さを有することが好ましい（請求項１０）。
この場合には、当接板部と断熱材の前面とを略同一平面上に配した状態で、上記脚部を上記構造躯体の前面に当接させることができる。それ故、外壁板の留め付け安定性を一層向上させることができる。
また、上記脚部は、上記断熱材の厚みよりも若干長く形成することもできる。この場合には、上記脚部の後端を、上記構造躯体に突き刺した状態とすることができる。 Moreover, it is preferable that the said leg part has the length substantially equivalent to the thickness of the said heat insulating material (Claim 10).
In this case, the leg portion can be brought into contact with the front surface of the structural housing in a state where the contact plate portion and the front surface of the heat insulating material are arranged on substantially the same plane. Therefore, the fastening stability of the outer wall plate can be further improved.
Moreover, the said leg part can also be formed a little longer than the thickness of the said heat insulating material. In this case, the rear end of the leg can be stabbed into the structural housing.

（実施例１）
本発明の実施例に係る外壁施工構造及びこれに用いる下地金具につき、図１〜図５を用いて説明する。
本例の外壁施工構造１は、図１、図２に示すごとく、建物の構造躯体２と、構造躯体２の前面２１に配設された樹脂発泡体からなる断熱材３と、断熱材３の前面３１に配設されると共に上記構造躯体２にビス１１によって固定された留め付け金具４と、留め付け金具４によって構造躯体２に留め付けられた外壁板５とを有する。 Example 1
An outer wall construction structure according to an embodiment of the present invention and a base metal fitting used therefor will be described with reference to FIGS.
As shown in FIG. 1 and FIG. 2, the outer wall construction structure 1 of this example includes a building structural body 2, a heat insulating material 3 made of a resin foam disposed on the front surface 21 of the structural housing 2, and a heat insulating material 3. A fastening metal fitting 4 disposed on the front surface 31 and fixed to the structural housing 2 by screws 11 and an outer wall plate 5 fastened to the structural housing 2 by the fastening metal fitting 4 are provided.

断熱材３と外壁板２との間には、通気層１２が形成されている。
断熱材３には、留め付け金具４の後面４１を当接させる下地金具６が配設されている。
下地金具６は、図１〜図４に示すごとく、留め付け金具４の後面４１に面接触する平板状の当接板部６１と、該当接板部６１から後方へ立設した脚部６２とを有する。当接板部６１には、ビス１１を挿通させる開口部６３を設けてなる。 A ventilation layer 12 is formed between the heat insulating material 3 and the outer wall plate 2.
The heat insulating material 3 is provided with a base metal fitting 6 that abuts the rear surface 41 of the fastener 4.
As shown in FIGS. 1 to 4, the base metal fitting 6 includes a flat contact plate portion 61 that is in surface contact with the rear surface 41 of the fastening metal fitting 4, and leg portions 62 that are erected rearward from the corresponding contact plate portion 61. Have The contact plate 61 is provided with an opening 63 through which the screw 11 is inserted.

図１、図２に示すごとく、下地金具６は、脚部６２を断熱材３に差し込むと共に、当接板部６１を断熱材３の前面３１と略同一平面上に配した状態で、断熱材３に配設してある。
また、下地金具６は、図４（ｂ）に示すごとく、当接板部６１の外形を略矩形状に形成してなる。そして、図３、図４に示すごとく、当接板部６１の４つの角部からそれぞれ脚部６２を立設してなる。 As shown in FIG. 1 and FIG. 2, the base metal fitting 6 has the legs 62 inserted into the heat insulating material 3, and the heat insulating material in a state where the contact plate 61 is arranged on the substantially same plane as the front surface 31 of the heat insulating material 3. 3.
In addition, as shown in FIG. 4B, the base metal 6 is formed by forming the outer shape of the contact plate portion 61 into a substantially rectangular shape. As shown in FIGS. 3 and 4, leg portions 62 are erected from four corner portions of the contact plate portion 61.

また、図１、図２に示すごとく、脚部６２は、構造躯体２の前面２１に当接している。即ち、脚部６２は、断熱材３の厚みと略同等の長さを有する。これにより、当接板部６１の前面６１１と断熱材３の前面３１とを略同一平面上に配した状態で、脚部６２の後端部６２１を構造躯体２の前面２１に当接させている。
また、脚部６２の後端部６２１は、構造躯体２に突き刺さった状態となっていてもよい。即ち、後述する構造躯体２における合板に対して、１〜３ｍｍ程度脚部６２の後端部６２１が突き刺さった状態とすることもできる。 Further, as shown in FIGS. 1 and 2, the leg portion 62 is in contact with the front surface 21 of the structural housing 2. That is, the leg portion 62 has a length substantially equal to the thickness of the heat insulating material 3. Thus, the rear end 621 of the leg portion 62 is brought into contact with the front surface 21 of the structural housing 2 in a state where the front surface 611 of the contact plate portion 61 and the front surface 31 of the heat insulating material 3 are arranged on substantially the same plane. Yes.
Further, the rear end portion 621 of the leg portion 62 may be pierced into the structural housing 2. That is, the rear end portion 621 of the leg portion 62 can be pierced by about 1 to 3 mm with respect to the plywood in the structural housing 2 described later.

本例において、断熱材３は、発泡ポリスチレンからなる。
また、構造躯体２は、形鋼からなるスチール枠体によって構成されている。なお、木造の軸組構造、枠組構造の構造躯体とすることもできる。
また、図示は省略したが、構造躯体２は、上記スチール枠体の前面に合板と、防水紙とを順次配設してなる。 In this example, the heat insulating material 3 is made of expanded polystyrene.
The structural housing 2 is constituted by a steel frame body made of a shape steel. In addition, it can also be set as the structural frame of a wooden frame structure and a frame structure.
Although not shown, the structural housing 2 is formed by sequentially arranging a plywood and waterproof paper on the front surface of the steel frame.

また、通気層１２は、１２ｍｍ以上の幅を有する。
また、下地金具６の当接板部６１の外形は、留め付け金具４の後面４１の外形よりも小さい。そして、配設状態においては、当接板部６１の前面６１１は、留め付け金具４によって覆われている。 The ventilation layer 12 has a width of 12 mm or more.
Further, the outer shape of the contact plate portion 61 of the base metal 6 is smaller than the outer shape of the rear surface 41 of the fastening metal 4. And in the arrangement | positioning state, the front surface 611 of the contact plate part 61 is covered with the fastener 4. As shown in FIG.

下地金具６は、厚み１ｍｍ程度の１枚の鋼板を切断、折り曲げ加工することにより、形成されている。そして、当接板部６１に形成された開口部６３は、ビス１１の直径よりも充分に大きい長円状に形成されている。
また、脚部６２は、図３、図４に示すごとく、上記鋼板の厚み方向が左右の方向になるように形成されている。そして、図４（ｃ）に示すごとく、脚部６２の後端部６２１は、後端側へ行くほど上下幅が小さくなるようなテーパ状に形成されている。また、下側に配される脚部６２ｄの方が、上側に配される脚部６２ｕよりも上下幅を広く形成してある。また、４本の脚部６２の長さは揃っており、上記断熱材３の厚みと同等である。 The base metal fitting 6 is formed by cutting and bending a single steel plate having a thickness of about 1 mm. The opening 63 formed in the contact plate 61 is formed in an oval shape that is sufficiently larger than the diameter of the screw 11.
Moreover, the leg part 62 is formed so that the thickness direction of the said steel plate may turn into the left-right direction as shown in FIG. 3, FIG. And as shown in FIG.4 (c), the rear-end part 621 of the leg part 62 is formed in the taper shape so that an up-down width | variety becomes small as it goes to a rear-end side. The lower leg portion 62d is wider than the upper leg portion 62u. Moreover, the length of the four leg parts 62 is equal, and is equivalent to the thickness of the said heat insulating material 3. FIG.

上記留め付け金具４は、図５に示すごとく、平坦な後面４１を有する基板部４１０と，該基板部４１０から前方に立設された支承部４２と，該支承部４２から上方へ屈曲した上板係止部４３と，支承部から下方へ屈曲した下板係止部４４とを有する。そして，基板部４１０の左右両側に、スペーサ部４５が形成されている。スペーサ部４５は、基板部４１０よりも前方かつ支承部４２の前端より後方に、前面４５１を有する。また、基板部４１０には、ビス１１を挿通するためのビス孔４１１が複数形成されている。
スペーサ部４５の前面４５１と基板部４１０の後面４１との前後幅は、上記通気層１２の前後幅に対応し、１２ｍｍ以上である。
留め付け金具４も、１枚の鋼板を切断、折り曲げ加工することにより、形成されている。 As shown in FIG. 5, the fastening bracket 4 includes a base plate portion 410 having a flat rear surface 41, a support portion 42 erected forward from the base plate portion 410, and an upward bending from the support portion 42. It has the board latching | locking part 43 and the lower board latching | locking part 44 bent downward from the support part. Spacer portions 45 are formed on both the left and right sides of the substrate portion 410. The spacer portion 45 has a front surface 451 in front of the substrate portion 410 and behind the front end of the support portion 42. Further, a plurality of screw holes 411 for inserting the screws 11 are formed in the substrate portion 410.
The front-rear width of the front surface 451 of the spacer unit 45 and the rear surface 41 of the substrate unit 410 corresponds to the front-rear width of the ventilation layer 12 and is 12 mm or more.
The fastening bracket 4 is also formed by cutting and bending a single steel plate.

上記外壁板５は、上下合決り構造の窯業系外壁板である。即ち、外壁板５は、図１に示すごとく、上辺に上部下実５１を、下辺に下部上実５２を、それぞれ形成してなる。下部上実５２の後方には下部係合部５２１が形成されている。
留め付け金具４は、下板係止部４４に、下側の外壁板５の上部下実５１を係止させている。また、留め付け金具４は、上側の外壁板５の下部係合部５２１を、支承部４２によって支承すると共に、上板係止部４３によって係止している。
また、留め付け金具４は、上記ビス孔４１１に挿通したビス１１が、断熱材３を貫通して、構造躯体２に螺合することにより、構造躯体２に固定される。このようにして、留め付け金具４によって外壁板５が構造躯体２に留め付けられている。 The outer wall plate 5 is a ceramic-type outer wall plate having an upper and lower determined structure. That is, as shown in FIG. 1, the outer wall plate 5 is formed with an upper lower body 51 on the upper side and a lower upper body 52 on the lower side. A lower engaging portion 521 is formed behind the lower upper shell 52.
The fastening bracket 4 has the lower plate engaging portion 44 engaged with the upper lower solid 51 of the lower outer wall plate 5. In addition, the fastening bracket 4 supports the lower engagement portion 521 of the upper outer wall plate 5 by the support portion 42 and locks it by the upper plate locking portion 43.
Further, the fastening metal fitting 4 is fixed to the structural housing 2 by the screws 11 inserted through the screw holes 411 passing through the heat insulating material 3 and screwing into the structural housing 2. In this way, the outer wall plate 5 is fastened to the structural housing 2 by the fastening bracket 4.

次に、本例の外壁施工構造１の施工方法につき説明する。
まず、建物の最下部において左右方向に補助桟（図示略）を構造躯体２に固定し、該補助桟の上方において構造躯体２の前面２１に断熱材３を張り付ける。
次いで、補助桟の前面に水切り材及び留め付け金具４を固定する（図示略）。
次いで、最下段の外壁板５を留め付け金具４に係止させて配置する。 Next, the construction method of the outer wall construction structure 1 of this example will be described.
First, an auxiliary bar (not shown) is fixed to the structural frame 2 in the left-right direction at the bottom of the building, and the heat insulating material 3 is attached to the front surface 21 of the structural frame 2 above the auxiliary bar.
Next, the draining material and the fastening bracket 4 are fixed to the front surface of the auxiliary bar (not shown).
Next, the outermost wall plate 5 at the lowermost stage is disposed by being locked to the fastening bracket 4.

次いで、最下段の外壁板５の上辺が配置された位置であって構造躯体２が後方に存在する位置において、断熱材３に、下地金具６を差し込む。即ち、下地金具６の脚部６２を断熱材３の所定の位置に突き刺すと共に後方へ押し込むことにより、当接板部６１が断熱材３の前面３１と略同一平面上となるようにする。   Next, the base metal fitting 6 is inserted into the heat insulating material 3 at a position where the upper side of the outermost wall plate 5 at the lowermost stage is disposed and the structural housing 2 is present behind. That is, the abutting plate portion 61 is substantially flush with the front surface 31 of the heat insulating material 3 by piercing the leg portion 62 of the base metal 6 into a predetermined position of the heat insulating material 3 and pushing it backward.

次いで、図１に示すごとく、外壁板５の上辺に下板係止部４４を係止させると共に、下地金具６の当接板部６１の前面６１１に後面４１を面接触させるように、留め付け金具４を配置する。
次いで、留め付け金具４のいずれかのビス孔４１１及び下地金具６の開口部６３にビス１１を挿通すると共に、該ビス１１に断熱材３を貫かせ、更にビス１１を構造躯体２にねじ込む。これにより、断熱材３の前面３１において、留め付け金具４を下地金具６に密着させた状態で、構造躯体２に固定し、外壁板５を留め付ける。 Next, as shown in FIG. 1, the lower plate locking portion 44 is locked to the upper side of the outer wall plate 5, and the rear surface 41 is brought into surface contact with the front surface 611 of the contact plate portion 61 of the base metal fitting 6. The metal fitting 4 is arranged.
Next, the screw 11 is inserted into one of the screw holes 411 of the fastening metal fitting 4 and the opening 63 of the base metal fitting 6, the heat insulating material 3 is passed through the screw 11, and the screw 11 is screwed into the structural housing 2. Thereby, in the front surface 31 of the heat insulating material 3, in a state where the fastening metal fitting 4 is in close contact with the base metal fitting 6, it is fixed to the structural housing 2 and the outer wall plate 5 is fastened.

次いで、２段目の外壁板５の下辺を留め付け金具４の支承部４２に支承させると共に上板係止部４３に係止させて、該外壁板５を配置する。このとき、下部上実５２を下側の外壁板５の上部下実５１に上下合決り接合する。
そして、上述したような下地金具６の配設、留め付け金具４の配設、外壁板５の配設を順次繰り返すことにより、複数の外壁板５を留め付けて、外壁施工構造１を構築する。 Next, the lower side of the outer wall plate 5 at the second stage is supported by the support portion 42 of the fastening bracket 4 and is also locked by the upper plate locking portion 43, thereby arranging the outer wall plate 5. At this time, the lower upper shell 52 is joined to the upper lower shell 51 of the lower outer wall plate 5 in a vertical manner.
Then, the outer wall construction structure 1 is constructed by fastening the plurality of outer wall plates 5 by sequentially repeating the placement of the base metal fitting 6, the fastening metal fitting 4, and the outer wall plate 5 as described above. .

次に、本例の作用効果につき説明する。
上記外壁施工構造１においては、図１、図２に示すごとく、断熱材３の前面３１に留め付け金具４を配置し、該留め付け金具４によって外壁板５を留め付けている。それ故、断熱材３と外壁板５との間に胴縁等を配設する必要がない。そのため、上記外壁施工構造１を施工するに当たり、外壁板５を配設する前に胴縁等を固定する必要がなく、施工効率を向上させることができる。また、材料コストを低減することができる。 Next, the function and effect of this example will be described.
In the outer wall construction structure 1, as shown in FIGS. 1 and 2, the fastener 4 is disposed on the front surface 31 of the heat insulating material 3, and the outer wall plate 5 is fastened by the fastener 4. Therefore, it is not necessary to provide a trunk edge or the like between the heat insulating material 3 and the outer wall plate 5. Therefore, in constructing the outer wall construction structure 1, it is not necessary to fix a trunk edge or the like before the outer wall plate 5 is disposed, and construction efficiency can be improved. Further, the material cost can be reduced.

また、上記外壁施工構造１においては、断熱材３に配設した下地金具６に、留め付け金具４の後面４１を当接させている。それ故、断熱材３の前面に配置した留め付け金具３をビス１１によって構造躯体２に固定する際に、留め付け金具４の一部が断熱材３に埋まってしまったり、断熱材３の変形に伴い留め付け金具４が変形したりすることを防ぐことができる。即ち、留め付け金具４の後面４１が下地金具６の当接板部６１に面接触していることにより、留め付け金具４がビス１１から受ける応力を当接板部６１の前面６１１において分散して受けることができる。これにより、留め付け金具４が断熱材３の前面３１即ち構造躯体２の前面２１に対して傾斜したり、留め付け金具４が変形したりすることを防ぐことができる。
これにより、外壁板５の留め付け安定性を確保することができる。 Further, in the outer wall construction structure 1, the rear surface 41 of the fastening bracket 4 is brought into contact with the base bracket 6 disposed on the heat insulating material 3. Therefore, when the fastener 3 disposed on the front surface of the heat insulating material 3 is fixed to the structural housing 2 with the screws 11, a part of the fastener 4 is buried in the heat insulating material 3 or the heat insulating material 3 is deformed. Accordingly, it is possible to prevent the fastener 4 from being deformed. That is, since the rear surface 41 of the fastener 4 is in surface contact with the contact plate 61 of the base metal 6, the stress received by the fastener 4 from the screw 11 is distributed on the front surface 611 of the contact plate 61. Can be received. Thereby, it can prevent that the fastening metal fitting 4 inclines with respect to the front surface 31 of the heat insulating material 3, ie, the front surface 21 of the structure housing 2, or the fastening metal fitting 4 deform | transforms.
Thereby, the fastening stability of the outer wall board 5 is securable.

また、上記下地金具６は脚部６２を有し、該脚部６２を断熱材３に差し込んでいる。そのため、施工時において、下地金具６を断熱材３における所望の位置に容易に配設し、その後、留め付け金具４を下地金具６の当接板部６１に面接触させて容易に配設することができる。従って、施工容易であると共に、下地金具６の位置ずれを容易に防ぐことができる。
また、断熱材３と外壁板５との間には、通気層１２が形成されているため、外壁施工構造１の耐久性を確保することができる。 Further, the base metal fitting 6 has a leg portion 62, and the leg portion 62 is inserted into the heat insulating material 3. Therefore, at the time of construction, the base metal fitting 6 is easily arranged at a desired position in the heat insulating material 3, and thereafter, the fastening metal fitting 4 is easily arranged in surface contact with the contact plate portion 61 of the base metal fitting 6. be able to. Therefore, the construction is easy, and the position shift of the base metal fitting 6 can be easily prevented.
Moreover, since the ventilation layer 12 is formed between the heat insulating material 3 and the outer wall board 5, durability of the outer wall construction structure 1 can be ensured.

また、図３、図４に示すごとく、下地金具６は、脚部６２を４本設けてなる。即ち、下地金具６は、当接板部６１の外形を略矩形状に形成してなり、該当接板部６１の４つの角部からそれぞれ脚部６２を立設してなる。それ故、下地金具６をより安定して断熱材３に固定することができる。それ故、前面に配設する留め付け金具４の傾斜を一層効果的に防ぎ、外壁板５の留め付け安定性をより向上させることができる。   As shown in FIGS. 3 and 4, the base metal fitting 6 is provided with four legs 62. That is, the base metal fitting 6 is formed by forming the outer shape of the abutting plate portion 61 into a substantially rectangular shape, and standing the leg portions 62 from the four corner portions of the corresponding contacting plate portion 61. Therefore, the base metal fitting 6 can be fixed to the heat insulating material 3 more stably. Therefore, it is possible to more effectively prevent the fastening bracket 4 disposed on the front face from being inclined, and to further improve the fastening stability of the outer wall plate 5.

また、図１、図２に示すごとく、脚部６２は、構造躯体２の前面２１に当接している。そのため、当接板部６１の前面６１１と断熱材３の前面３１とが略同一平面上に配された状態から、下地金具６が更に後方へ後退することを確実に防ぐことができる。それ故、外壁板５の留め付け安定性を一層向上させることができる。   Further, as shown in FIGS. 1 and 2, the leg portion 62 is in contact with the front surface 21 of the structural housing 2. Therefore, it is possible to reliably prevent the base metal fitting 6 from moving backward further from the state in which the front surface 611 of the contact plate portion 61 and the front surface 31 of the heat insulating material 3 are arranged on substantially the same plane. Therefore, the fastening stability of the outer wall plate 5 can be further improved.

以上のごとく、本例によれば、施工性、外壁板の留め付け安定性に優れた外壁施工構造及びこれに用いる下地金具を提供することができる。   As described above, according to this example, it is possible to provide an outer wall construction structure excellent in workability and outer wall plate fastening stability, and a base metal fitting used therefor.

（実施例２）
本例は、図６に示すごとく、当接板部６１の上辺に、前方へ突出した突出部６４を設けた下地金具６の例である。
そして、突出部６４に留め付け金具４の上端部４１２（図５参照）を当接させる。
本例においては、突出部６４は、図６（ｃ）に示すごとく、前方へ突出させると共に下方へ折返して鉤形状としてある。そして、留め付け金具４の上端部４１２を鉤形状の突出部６４に係合させることができる。
その他は、実施例１と同様である。 (Example 2)
In this example, as shown in FIG. 6, the base metal fitting 6 is provided with a protrusion 64 protruding forward on the upper side of the contact plate 61.
Then, the upper end portion 412 (see FIG. 5) of the fastener 4 is brought into contact with the protruding portion 64.
In this example, as shown in FIG.6 (c), the protrusion part 64 is made to protrude forward, and is turned down and is made into a hook shape. Then, the upper end portion 412 of the fastener 4 can be engaged with the hook-shaped protrusion 64.
Others are the same as in the first embodiment.

本例の場合には、下地金具６を断熱材３に取り付けた後、留め付け金具４を配設する際に、留め付け金具４の位置決めを容易に行うことができる。それ故、一層施工性に優れた外壁施工構造１を得ることができる。
その他、実施例１と同様の作用効果を有する。 In the case of this example, after the base metal fitting 6 is attached to the heat insulating material 3, when the fastening metal fitting 4 is disposed, the fastening metal fitting 4 can be easily positioned. Therefore, it is possible to obtain the outer wall construction structure 1 having further excellent workability.
In addition, the same effects as those of the first embodiment are obtained.

（実施例３）
本例は、図７に示すごとく、脚部６２を左右の２本とした下地金具６の例である。
脚部６２は、図７（ａ）に示すごとく、当接板部６１の左右辺からそれぞれ後方へ折り曲げられた状態で形成されている。各脚部６２は、図７（ｃ）に示すごとく、後方へ向かうほど上下幅が小さくなるような台形状に形成されている。
その他は、実施例１と同様である。
本例の場合には、下地金具６の形状がより単純化され、作製容易となる。
その他、実施例１と同様の作用効果を有する。 (Example 3)
As shown in FIG. 7, this example is an example of the base metal fitting 6 having two leg portions 62 on the left and right.
As shown in FIG. 7A, the leg portion 62 is formed in a state of being bent rearward from the left and right sides of the contact plate portion 61. As shown in FIG. 7C, each leg 62 is formed in a trapezoidal shape such that the vertical width decreases toward the rear.
Others are the same as in the first embodiment.
In the case of this example, the shape of the base metal fitting 6 is further simplified and it is easy to manufacture.
In addition, the same effects as those of the first embodiment are obtained.

（実施例４）
本例は、図８に示すごとく、脚部６２を左右の２本とすると共に、当接板部６１の上辺に前方へ突出した突出部６４を設けた下地金具６の例である。即ち、上述した実施例３と実施例４とを組合わせた例である。
その他は、実施例１と同様である。
本例の場合には、下地金具６の作製を容易とすると共に、留め付け金具４の位置決めを容易に行うことができる。
その他、実施例１と同様の作用効果を有する。 Example 4
As shown in FIG. 8, this example is an example of the base metal fitting 6 having two leg portions 62 on the left and right sides and a protruding portion 64 protruding forward on the upper side of the contact plate portion 61. That is, this is an example in which Example 3 and Example 4 described above are combined.
Others are the same as in the first embodiment.
In the case of this example, the base metal fitting 6 can be easily manufactured and the fastening metal fitting 4 can be easily positioned.
In addition, the same effects as those of the first embodiment are obtained.

なお、上記実施例においては、脚部の長さを断熱材の厚みと略同等にして、脚部の後端部を構造躯体の前面に当接させる例を示したが、脚部の長さを断熱材の厚みよりも小さくして、脚部の後端部を構造躯体に当接させないよう構成してもよい。   In the above-described embodiment, the length of the leg portion is substantially equal to the thickness of the heat insulating material, and the rear end portion of the leg portion is brought into contact with the front surface of the structural casing. May be configured to be smaller than the thickness of the heat insulating material so that the rear end portion of the leg portion does not contact the structural housing.

実施例１における、外壁施工構造の垂直断面図。The vertical sectional view of the outer wall construction structure in Example 1. FIG. 実施例１における、外壁施工構造の水平断面図。The horizontal sectional view of the outer wall construction structure in Example 1. FIG. 実施例１における、下地金具の斜視図。FIG. 3 is a perspective view of a base metal fitting in Example 1. 実施例１における、下地金具の（ａ）上面図、（ｂ）正面図、（ｃ）側面図。(A) Top view, (b) Front view, (c) Side view of base metal fitting in Example 1. 実施例１における、留め付け金具の斜視図。FIG. 3 is a perspective view of a fastener according to the first embodiment. 実施例２における、下地金具の（ａ）上面図、（ｂ）正面図、（ｃ）側面図。(A) Top view, (b) Front view, (c) Side view of base metal fitting in Example 2. 実施例３における、下地金具の（ａ）上面図、（ｂ）正面図、（ｃ）側面図。(A) Top view, (b) Front view, (c) Side view of base metal fitting in Example 3. 実施例４における、下地金具の（ａ）上面図、（ｂ）正面図、（ｃ）側面図。(A) Top view, (b) Front view, (c) Side view of base metal fitting in Example 4. 従来例における、外壁施工構造の垂直断面図。The vertical sectional view of the outer wall construction structure in a conventional example. 従来例における、外壁施工構造の水平断面図。The horizontal sectional view of the outer wall construction structure in a prior art example.

符号の説明Explanation of symbols

１ 外壁施工構造
１１ ビス
１２ 通気層
２ 構造躯体
３ 断熱材
４ 留め付け金具
５ 外壁板
６ 下地金具
６１ 当接板部
６２ 脚部
６３ 開口部 DESCRIPTION OF SYMBOLS 1 Outer wall construction structure 11 Screw 12 Ventilation layer 2 Structure frame 3 Heat insulating material 4 Fastening metal fitting 5 Outer wall board 6 Base metal fitting 61 Contacting plate part 62 Leg part 63 Opening part

Claims (2)

建物の構造躯体と、該構造躯体の前面に配設された樹脂発泡体からなる断熱材と、該断
熱材の前面に配設されると共に上記構造躯体にビスによって固定された留め付け金具と、
該留め付け金具によって上記構造躯体に留め付けられた外壁板とを有する外壁施工構造で
あって、
上記断熱材と上記外壁板との間に胴縁を配置せず、
上記断熱材と上記外壁板との間には、通気層が形成されており、
上記断熱材には、上記留め付け金具の後面を当接させる下地金具が配設されており、
該下地金具は、上記留め付け金具の後面に面接触する平板状の当接板部と、該当接板部
から後方へ立設した脚部とを有し、上記当接板部には、上記ビスを挿通させる開口部を設
けてなり、
上記下地金具は、上記脚部を複数本有し、
上記下地金具は、上記当接板部の外形を略矩形状に形成してなり、
上記下地金具は、上記当接板部の４つの角部からそれぞれ上記脚部を立設してなり、
上記下地金具は、上記当接板部の上辺に、前方へ突出した突出部を設けてなり、該突出部に上記留め付け金具の上端部を当接させており、
上記脚部は、上記構造躯体の前面に当接しており、
上記下地金具は、上記脚部を上記断熱材に差し込むと共に、上記当接板部を上記断熱材
の前面と略同一平面上に配した状態で、上記断熱材に配設してあることを特徴とする外壁
施工構造。 A structural housing of the building, a heat insulating material made of a resin foam disposed on the front surface of the structural housing, a fastening metal member disposed on the front surface of the heat insulating material and fixed to the structural housing with screws,
An outer wall construction structure having an outer wall plate fastened to the structural frame by the fastening bracket,
Do not arrange the trunk edge between the heat insulating material and the outer wall plate,
A ventilation layer is formed between the heat insulating material and the outer wall plate,
The heat insulating material is provided with a base metal fitting that abuts the rear surface of the fixing metal,
The base metal fitting has a flat contact plate portion that is in surface contact with the rear surface of the fastener, and a leg portion standing rearward from the corresponding contact plate portion. An opening for inserting a screw is provided,
The base metal fitting has a plurality of the leg portions,
The base metal fitting is formed by forming the outer shape of the contact plate portion into a substantially rectangular shape,
The base metal fitting is provided with the legs standing from the four corners of the contact plate part,
The base metal fitting is provided with a protruding portion protruding forward on the upper side of the contact plate portion, and the upper end portion of the fastening metal fitting is in contact with the protruding portion,
The leg is in contact with the front surface of the structural housing,
The base metal fitting is disposed on the heat insulating material in a state where the leg portion is inserted into the heat insulating material and the contact plate portion is arranged on substantially the same plane as the front surface of the heat insulating material. External wall construction structure. 建物の構造躯体の前面に配置される発泡樹脂成形体からなる断熱材に配設され、上記構
造躯体に外壁板を留め付けるための留め付け金具の後面を当接させる下地金具であって、
上記留め付け金具の後面に面接触する平板状の当接板部と、該当接板部から後方へ立設
した脚部とを有し、上記当接板部には開口部を設けてなり、
上記脚部は、複数本形成してあり、
上記当接板部は、略矩形状の外形を有し、該当接板部の４つの角部からそれぞれ上記脚部を立設してなり、
上記当接板部の上辺には、前方へ突出した突出部を設けてなり、
上記脚部は、上記断熱材の厚みと略同等の長さを有し、
上記断熱材と上記外壁板との間に胴縁を配置せず、
上記脚部を上記断熱材に差し込むと共に、上記当接板部を上記断熱材の前面と略同一平
面上に配することができるよう構成してあることを特徴とする下地金具。 A base metal fitting disposed on a heat insulating material made of a foamed resin molded body disposed on the front surface of a structural frame of a building, and abutting a rear surface of a fixing metal for fixing an outer wall plate to the structural frame,
It has a flat contact plate portion that is in surface contact with the rear surface of the fastening bracket, and a leg portion standing rearward from the corresponding contact plate portion, and the contact plate portion is provided with an opening,
A plurality of the legs are formed,
The contact plate portion has a substantially rectangular outer shape, and the leg portions are erected from four corners of the contact plate portion,
On the upper side of the contact plate part, a protruding part protruding forward is provided,
The leg has a length substantially equal to the thickness of the heat insulating material,
Do not arrange the trunk edge between the heat insulating material and the outer wall plate,
A base metal fitting, wherein the leg portion is inserted into the heat insulating material, and the abutting plate portion is arranged on the same plane as the front surface of the heat insulating material.
JP2005232324A 2005-08-10 2005-08-10 Exterior wall construction structure and base metal fittings used therefor Active JP4684797B2 (en)

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CN100447360C (en) 2008-12-31

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