JP2014005593A - Wall ventilation construction and spacer member for building - Google Patents

Wall ventilation construction and spacer member for building Download PDF

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JP2014005593A
JP2014005593A JP2012139606A JP2012139606A JP2014005593A JP 2014005593 A JP2014005593 A JP 2014005593A JP 2012139606 A JP2012139606 A JP 2012139606A JP 2012139606 A JP2012139606 A JP 2012139606A JP 2014005593 A JP2014005593 A JP 2014005593A
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heat insulating
insulating material
wall
spacer member
ventilation layer
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JP5986438B2 (en
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Taichi Kameyama
太一 亀山
Kazuhiro Matsumoto
和大 松本
Shuta Kawamata
周太 川又
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Fukuvi Chemical Industry Co Ltd
Toyota Housing Corp
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Fukuvi Chemical Industry Co Ltd
Toyota Housing Corp
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Abstract

PROBLEM TO BE SOLVED: To provide the wall ventilation construction and space member of a building capable of reducing construction man-hours in the case of forming a ventilation layer between a wall surface material and a heat insulation material.SOLUTION: An outer wall section 11 of a building 10 includes: an outer wall surface material 12; and a plate-shaped in-wall heat insulation material 14A disposed at the back side, and a ventilation layer 16 is formed between the outer wall surface material 12 and the in-wall heat insulation material 14A. A spacer member 30 is attached to the in-wall heat insulation material 14A so as to be partially disposed between the outer wall surface material 12 and the in-wall heat insulation member 14A to form the ventilation layer 16. The spacer member 30 includes a cutting blade section 32 configured so as to be inserted from the ventilation layer 16 side into the in-wall heat insulation material 14A with a pointed end 35 having an acute tip as a front end, and the cutting blade section 32 is inserted into the in-wall heat insulation material 14A such that the spacer member 30 is attached to the in-wall heat insulation material 14A.

Description

本発明は、建物の壁通気構造及びスペーサ部材に関する。   The present invention relates to a building wall ventilation structure and a spacer member.

建物の外壁部では、屋外側に外壁面材が設けられ、その屋内側に内壁面材が設けられている。外壁面材と内壁面材との間の空間(つまり壁内空間)には、外壁部の断熱性向上を図るために壁内断熱材が配設されている(例えば特許文献1)。壁内断熱材は、例えば硬質ウレタンフォーム等の発泡系断熱材により構成されている。   In the outer wall portion of the building, an outer wall surface material is provided on the outdoor side, and an inner wall surface material is provided on the indoor side. In the space between the outer wall surface material and the inner wall surface material (that is, the inner wall space), an in-wall heat insulating material is disposed in order to improve the heat insulating property of the outer wall portion (for example, Patent Document 1). The in-wall heat insulating material is made of a foam heat insulating material such as hard urethane foam.

また、建物の外壁部では、壁内空間の一部に通気層が形成されていることがある。通気層は、壁内空間に発生した湿気等を屋外に排出するためのものである。通気層は、例えば外壁面材と壁内断熱材との間に形成される。   In addition, a ventilation layer may be formed in a part of the wall space in the outer wall portion of the building. The ventilation layer is for discharging moisture or the like generated in the wall space to the outside. The ventilation layer is formed, for example, between the outer wall surface material and the in-wall heat insulating material.

かかる通気層を形成するために、外壁面材と壁内断熱材との間にスペーサ部材が配設されることがある。この種のスペーサ部材としては、例えば長尺状の桟木が用いられる。この場合、桟木は例えば壁内断熱材に対して接着剤により接着固定される。   In order to form such a ventilation layer, a spacer member may be disposed between the outer wall surface material and the in-wall heat insulating material. As this type of spacer member, for example, a long pier is used. In this case, the pier is bonded and fixed to the heat insulating material in the wall with an adhesive, for example.

特開2011−247036号公報JP 2011-247036 A

ところで、桟木(スペーサ部材)により外壁面材と壁内断熱材との間に通気層を形成する上述の構成では、まず桟木が壁内断熱材に接着剤を用いて接着固定され、その後壁内断熱材がその桟木を外壁面材側に向けた状態で当該外壁面材の裏面側に設置されることが考えられる。   By the way, in the above-mentioned configuration in which the ventilation layer is formed between the outer wall surface material and the in-wall heat insulating material by the crosspiece (spacer member), the crosspiece is first bonded and fixed to the in-wall heat insulating material using an adhesive, and then the inside of the wall It is conceivable that the heat insulating material is installed on the back side of the outer wall surface material with the pier facing the outer wall surface material side.

ここで、桟木を壁内断熱材に接着剤により接着固定する場合、接着剤が乾いて接着効果が発揮されるまでに所定の時間を要することが想定される。そのため、施工工数の増大が懸念される。また、接着効果が発揮されて桟木が壁内断熱材に固定されてからでないと、壁内断熱材を外壁面材の裏面側に設置する作業を行うことができないため、施工に遅延をもたらすおそれもある。   Here, when the crosspiece is bonded and fixed to the in-wall heat insulating material with an adhesive, it is assumed that a predetermined time is required until the adhesive is dried and the bonding effect is exhibited. For this reason, there is a concern that the number of construction man-hours will increase. In addition, since the adhesive effect is exhibited and the pier is fixed to the heat insulating material in the wall, the work of installing the heat insulating material in the wall on the back side of the outer wall surface material cannot be performed, which may cause delay in construction. There is also.

本発明は、上記事情に鑑みてなされたものであり、壁面材と断熱材との間に通気層を形成する上で、施工工数の削減を図ることができる建物の壁通気構造及びスペース部材を提供することを主たる目的とするものである。   The present invention has been made in view of the above circumstances, and has a building wall ventilation structure and a space member that can reduce the number of construction steps when forming a ventilation layer between a wall surface material and a heat insulating material. The main purpose is to provide it.

上記課題を解決すべく、第1の発明の建物の壁通気構造は、壁面材と、その壁面材の裏面側に設けられる板状の断熱材とを備え、前記壁面材と前記断熱材との間には通気層が形成されている建物の壁通気構造において、前記壁面材と前記断熱材との間に一部を配設することにより前記通気層を形成するスペーサ部材を備え、前記スペーサ部材は、先の尖った尖端部を先端として前記通気層側から前記断熱材に差し込まれる差込部を備え、その差込部が前記断熱材に差し込まれることで当該断熱材に取り付けられていることを特徴とする。   In order to solve the above problems, a wall ventilation structure of a building of the first invention includes a wall surface material and a plate-shaped heat insulating material provided on the back side of the wall surface material, and the wall surface material and the heat insulating material In the wall ventilation structure of a building in which a ventilation layer is formed, the spacer member includes a spacer member that forms the ventilation layer by disposing a part between the wall surface material and the heat insulating material. Is provided with an insertion part inserted into the heat insulating material from the ventilation layer side with a pointed pointed end as a tip, and the insertion part is attached to the heat insulating material by being inserted into the heat insulating material. It is characterized by.

本発明によれば、スペーサ部材に設けられた差込部がその尖端部を先端として通気層側から断熱材に差し込まれており、これによりスペーサ部材が断熱材に取り付けられている。この場合、差込部を断熱材に差し込むという比較的簡単な作業でスペーサ部材を断熱材に取り付けることができるため、スペーサ部材の断熱材への取り付けを短時間で行うことができる。また、スペーサ部材を断熱材に接着剤により接着固定する場合とは異なり、接着剤が乾くのを待つという時間が不要となるため、スペーサ部材を断熱材に取り付けた後すぐに断熱材を壁面材の裏面側に設置することができる。よって、この場合、壁面材と断熱材との間に通気層を形成する上で、施工工数の削減を図ることができる。   According to the present invention, the insertion portion provided in the spacer member is inserted into the heat insulating material from the air-permeable layer side with its tip end as a tip, and thereby the spacer member is attached to the heat insulating material. In this case, since the spacer member can be attached to the heat insulating material by a relatively simple operation of inserting the insertion portion into the heat insulating material, the spacer member can be attached to the heat insulating material in a short time. Also, unlike the case where the spacer member is bonded and fixed to the heat insulating material with an adhesive, it is not necessary to wait for the adhesive to dry, so the heat insulating material is attached to the wall surface material immediately after the spacer member is attached to the heat insulating material. It can be installed on the back side. Therefore, in this case, when forming the ventilation layer between the wall surface material and the heat insulating material, the number of construction steps can be reduced.

第2の発明の建物の壁通気構造は、第1の発明において、前記差込部は、前記断熱材に差し込まれた状態において当該断熱材の厚み方向に延びる板状をなしているとともに、2つの端面部が頂部をなす山形状の切刃部を有しており、その頂部が前記尖端部となっていることを特徴とする。   In the building wall ventilation structure according to the second invention, in the first invention, the insertion portion has a plate shape extending in the thickness direction of the heat insulating material in a state of being inserted into the heat insulating material, and 2 One end face portion has a mountain-shaped cutting blade portion forming a top portion, and the top portion is the pointed portion.

本発明によれば、板状をなす差込部がその切刃部の頂部を先端として断熱材に差し込まれている。この場合、差込部が断熱材に差し込まれた状態において差込部の板面が断熱材と密着されることとなり、差込部が針状をなしている場合と比べて、差込部における断熱材との密着面を広く確保することができる。これにより、差込部ひいてはスペーサ部材の断熱材からの抜け落ちを抑制することができる。   According to this invention, the insertion part which makes plate shape is inserted in the heat insulating material by making the top part of the cutting-blade part into a front-end | tip. In this case, in the state where the insertion part is inserted into the heat insulating material, the plate surface of the insertion part will be in close contact with the heat insulating material, compared with the case where the insertion part has a needle shape, in the insertion part A wide contact surface with the heat insulating material can be secured. Thereby, the drop-out from the heat insulating material of the insertion portion and the spacer member can be suppressed.

また、差込部と断熱材とが面当たりしていることで、スペーサ部材に断熱材の板面方向の荷重が作用してもスペーサ部材が回転してしまうのを抑制することができる。これにより、スペーサ部材を断熱材に安定した状態で取り付けることができる。   Moreover, even if the load in the plate | board surface direction of a heat insulating material acts on a spacer member because the insertion part and the heat insulating material have contact | abutted, it can suppress that a spacer member rotates. Thereby, the spacer member can be attached to the heat insulating material in a stable state.

第3の発明の建物の壁通気構造は、第2の発明において、前記差込部は、その板厚が前記断熱材の厚み方向において前記尖端部に向かうにつれて小さくなっていることを特徴とする。   A wall ventilation structure for a building according to a third invention is characterized in that, in the second invention, the insertion portion has a thickness that decreases as it goes toward the tip in the thickness direction of the heat insulating material. .

本発明によれば、差込部の板厚が切刃部の尖端部に向かって小さくなっているため、尖端部を先端として差込部を断熱材に差し込む際その差し込みがし易い。このため、スペーサ部材を断熱材に取り付ける作業を容易とすることができる。   According to this invention, since the plate | board thickness of the insertion part is becoming small toward the pointed end part of a cutting-blade part, it is easy to insert when inserting an insertion part into a heat insulating material by using a pointed end part as a front-end | tip. For this reason, the operation | work which attaches a spacer member to a heat insulating material can be made easy.

第4の発明の建物の壁通気構造は、第2又は第3の発明において、前記スペーサ部材は、前記差込部を複数備えており、それら各差込部は互いの板面を異なる方向に向けて配置されていることを特徴とする。   In the building wall ventilation structure according to a fourth aspect of the present invention, in the second or third aspect, the spacer member includes a plurality of the insertion portions, and each insertion portion has a plate surface in a different direction. It is characterized by being arranged.

板状の差込部が断熱材に差し込まれる上述の構成では、スペーサ部材に当該差込部の板厚方向への荷重が作用した場合に同方向への位置ずれを抑制する効果が得られる。そして本発明では、スペーサ部材に互いの板面が異なる方向を向く複数の差込部が設けられているため、スペーサ部材に作用する複数方向の荷重に対してかかる位置ずれ抑制効果を得ることができる。このため、スペーサ部材を断熱材に安定した状態で取り付けることができる。   In the above-described configuration in which the plate-like insertion portion is inserted into the heat insulating material, when a load in the thickness direction of the insertion portion is applied to the spacer member, an effect of suppressing the displacement in the same direction is obtained. In the present invention, since the spacer member is provided with a plurality of insertion portions that face in different directions from each other, it is possible to obtain a positional deviation suppression effect applied to a load in a plurality of directions acting on the spacer member. it can. For this reason, the spacer member can be attached to the heat insulating material in a stable state.

第5の発明の建物の壁通気構造は、第4の発明において、前記各差込部の切刃部はそれぞれ前記端面部として、前記断熱材の厚み方向に対して斜め方向に延びる第1端面部と、前記厚み方向に延びる第2端面部とを有しており、前記各差込部のうちいずれかが、前記第2端面部を下側に向けた状態で前記断熱材に差し込まれていることを特徴とする。   The wall ventilation structure for a building of a fifth invention is the first end face extending in an oblique direction with respect to the thickness direction of the heat insulating material as the end face part in the fourth invention. And a second end surface portion extending in the thickness direction, and any one of the insertion portions is inserted into the heat insulating material with the second end surface portion facing downward. It is characterized by being.

スペーサ部材が、互いの板面が異なる方向を向く複数の差込部を備える構成では、差込部が断熱材に差し込まれた状態において、いずれかの差込部が断熱材に対して縦向きの状態で差し込まれることが考えられる。この場合、その縦向きの差込部の切刃部において下側を向く端面部が尖端部から通気層(壁面材)側に向かって下方傾斜していると、その傾斜面に沿って切刃部ひいては差込部が断熱材から抜け落ち易くなることが考えられる。   In the configuration in which the spacer member includes a plurality of insertion portions in which the respective plate surfaces face different directions, in a state where the insertion portion is inserted into the heat insulating material, any one of the insertion portions is oriented vertically with respect to the heat insulating material. It is conceivable to be inserted in the state of. In this case, when the end surface portion facing downward in the cutting blade portion of the vertical insertion portion is inclined downward from the pointed portion toward the ventilation layer (wall surface material) side, the cutting blade along the inclined surface. It is conceivable that the portion and thus the insertion portion can easily come off from the heat insulating material.

そこで本発明では、この点に鑑みて、切刃部における2つの端面部のうち一方の端面部(第2端面部)を差込部が断熱材に差し込まれた状態において、断熱材の厚み方向に延びるように形成している。この場合、いずれかの差込部が断熱材に縦向きに差し込まれたとしても、その差込部の切刃部が第2端面部を下側に向けて差し込まれていれば、当該差込部について断熱材からの抜け落ちを抑制することができる。そのため、スペーサ部材をより一層安定した状態で断熱材に取り付けることができる。   Therefore, in the present invention, in view of this point, in the state where one end surface portion (second end surface portion) of the two end surface portions in the cutting edge portion is inserted into the heat insulating material, the thickness direction of the heat insulating material. It is formed so as to extend. In this case, even if any one of the insertion portions is inserted vertically into the heat insulating material, if the cutting edge portion of the insertion portion is inserted with the second end face portion facing downward, the insertion portion is inserted. The drop-out from the heat insulating material can be suppressed for the portion. Therefore, the spacer member can be attached to the heat insulating material in a more stable state.

第6の発明の建物の壁通気構造は、第5の発明において、前記複数の差込部は、それぞれ前記断熱材に差し込まれた状態で、当該断熱材の厚み方向に延びる中心軸を中心とした同一円状に等間隔で並べられ、かつ、各々の切刃部が当該同一円の円周方向に沿って同じ向きとなるように配置されていることを特徴とする。   A wall ventilation structure for a building according to a sixth invention is the fifth invention, wherein the plurality of insertion portions are respectively inserted into the heat insulating material and centered on a central axis extending in a thickness direction of the heat insulating material. The cutting blades are arranged at equal intervals in the same circle, and the respective cutting edge portions are arranged in the same direction along the circumferential direction of the same circle.

本発明によれば、スペーサ部材において複数の差込部が断熱材の厚み方向に延びる軸を中心とした同一円状に等間隔で並び、かつ、各々の切刃部が当該同一円の円周方向に沿って同じ向きとなるように並んでいるため、スペーサ部材が断熱材に対して前記円周方向におけるいずれの向きで取り付けられたとしても、スペーサ部材を同様の取付状態で取り付けることができる。つまり、この場合、スペーサ部材を前記円周方向においていずれの向きで取り付けたとしても、第5の発明の効果を得ることができるため、スペーサ部材を断熱材に取り付ける際、その取付向き(具体的には差込部の向き)をいちいち気にしなくてもよくその取付作業を容易とすることができる。   According to the present invention, in the spacer member, the plurality of insertion portions are arranged at equal intervals around the axis extending in the thickness direction of the heat insulating material at equal intervals, and each cutting edge portion has a circumference of the same circle. Since the spacer members are arranged in the same direction along the direction, the spacer member can be mounted in the same mounting state even if the spacer member is mounted in any direction in the circumferential direction with respect to the heat insulating material. . That is, in this case, even if the spacer member is attached in any direction in the circumferential direction, the effect of the fifth invention can be obtained. Therefore, when the spacer member is attached to the heat insulating material, the attachment direction (specifically Therefore, it is not necessary to care about the orientation of the plug-in portion, and the mounting work can be facilitated.

第7の発明の建物の壁通気構造は、第1乃至第6のいずれかの発明において、前記スペーサ部材は、前記差込部が前記断熱材に差し込まれた状態において前記断熱材の前記通気層側の面に当接される当接面部を有しており、その当接面部が前記断熱材の前記通気層側の面に当接されることで前記差込部が前記断熱材にそれ以上深く差し込まれることが規制されていることを特徴とする。   The building wall ventilation structure according to a seventh aspect of the present invention is the air vent layer of the heat insulating material according to any one of the first to sixth aspects, wherein the spacer member is inserted into the heat insulating material. A contact surface portion that is in contact with the surface on the side, and the contact surface portion is in contact with the surface on the ventilation layer side of the heat insulating material, whereby the insertion portion is further on the heat insulating material. It is characterized by being restricted from being inserted deeply.

本発明によれば、スペーサ部材において差込部を断熱材に差し込む際、当接面部が断熱材の通気層側の面に当接されることで、差込部がそれ以上深く差し込まれることが規制される。つまり、この場合、当接面部が断熱材の通気層側の面に当接するまで差込部を断熱材に差し込むことで、スペーサ部材において断熱材から通気層側に突出する部分の突出量を規定することができる。この突出部分は、壁面材と断熱材との間に配設されて通気層を形成する部分となるため、結果として通気層の厚みを規定することができる。これにより、差込部を断熱材に差し込む際、差し込み深さの調整を行うといった面倒な作業を行わなくても、通気層の厚みを所望の厚みに設定することができる。   According to the present invention, when the insertion portion is inserted into the heat insulating material in the spacer member, the contact portion is brought into contact with the surface on the ventilation layer side of the heat insulating material, so that the insertion portion can be inserted further deeper. Be regulated. That is, in this case, by inserting the insertion portion into the heat insulating material until the contact surface portion contacts the surface of the heat insulating material on the ventilation layer side, the protrusion amount of the portion of the spacer member that protrudes from the heat insulating material to the air flow layer side is specified. can do. Since this protrusion part is a part which is arrange | positioned between a wall surface material and a heat insulating material and forms a ventilation layer, the thickness of a ventilation layer can be prescribed | regulated as a result. Thereby, when inserting an insertion part in a heat insulating material, the thickness of a ventilation layer can be set to desired thickness, without performing troublesome work of adjusting insertion depth.

また、施工後において、スペーサ部材が壁面材側から荷重を受けた場合でも、差込部が断熱材にさらに深く差し込まれることが規制されるため、通気層の厚みを所定の厚みに維持し易い。このため、通気層の通気性能を長期に亘って好適に確保することができる。   Further, even after the construction, even when the spacer member receives a load from the wall surface material side, the insertion portion is restricted from being inserted deeper into the heat insulating material, so that the thickness of the ventilation layer can be easily maintained at a predetermined thickness. . For this reason, the ventilation performance of a ventilation layer can be suitably ensured over a long period of time.

第8の発明の建物の壁通気構造は、第7の発明において、前記スペーサ部材は、筒状をなすとともにその軸線を前記断熱材の厚み方向に向けて配設された筒状部を備え、前記筒状部は、その一部が前記断熱材に差し込まれて前記差込部となっており、前記差込部は、前記筒状部の周方向に沿って所定の間隔で複数形成されており、前記筒状部において隣り合う前記差込部の間の端面が前記断熱材の前記通気層側の面に当接されて前記当接面部となっていることを特徴とする。   The wall ventilation structure of a building according to an eighth invention is the seventh invention, wherein the spacer member includes a cylindrical portion disposed in a cylindrical shape and having an axis lined in a thickness direction of the heat insulating material. A part of the cylindrical part is inserted into the heat insulating material to form the insertion part, and a plurality of the insertion parts are formed at predetermined intervals along the circumferential direction of the cylindrical part. And the end surface between the said insertion parts adjacent in the said cylindrical part is contact | abutted by the surface by the side of the said ventilation layer of the said heat insulating material, It is characterized by the above-mentioned.

本発明によれば、スペーサ部材における筒状部の一部に複数の差込部が周方向に所定間隔で形成されており、その筒状部において隣り合う差込部の間の端面が当接面部となっている。この場合、断熱材の通気層側の面に当接される当接面部が筒状部の端面を利用して構成されているため、第7の発明の効果を簡素な構成で得ることができる。   According to the present invention, a plurality of insertion portions are formed at predetermined intervals in the circumferential direction in a part of the cylindrical portion of the spacer member, and end surfaces between adjacent insertion portions in the cylindrical portion abut. It is a face part. In this case, since the abutting surface portion that abuts the surface of the heat insulating material on the air-permeable layer side is configured using the end surface of the cylindrical portion, the effect of the seventh invention can be obtained with a simple configuration. .

第9の発明の建物の壁通気構造は、第1乃至第8のいずれかの発明において、前記スペーサ部材において前記通気層に配設されたスペーサ部には、その外周面に凹凸部が設けられていることを特徴とする。   In the building wall ventilation structure according to a ninth aspect of the present invention, in any one of the first to eighth aspects, the spacer portion provided in the ventilation layer in the spacer member is provided with an uneven portion on an outer peripheral surface thereof. It is characterized by.

スペーサ部材において壁面材と断熱材との間(すなわち通気層)に配設されスペーサとしての機能を果たすスペーサ部は、差込部を断熱材に差し込む際には把持される部位として機能すると考えられる。そこで、本発明ではこの点に鑑みて、この部位(すなわちスペーサ部)の外周面に凹凸部を形成している。これにより、スペーサ部を把持して差込部を断熱材に差し込む際、手が滑る等の不都合を生じにくくすることができ、差込部の断熱材への差込作業を行い易くすることができる。   It is considered that the spacer portion which is disposed between the wall surface material and the heat insulating material (that is, the ventilation layer) in the spacer member and functions as a spacer functions as a portion to be gripped when the insertion portion is inserted into the heat insulating material. . In view of this point, the present invention forms an uneven portion on the outer peripheral surface of this portion (that is, the spacer portion). Thereby, when gripping the spacer portion and inserting the insertion portion into the heat insulating material, it is possible to make it difficult to cause inconvenience such as hand slipping, and to facilitate the insertion work of the insertion portion into the heat insulating material. it can.

第10の発明の建物の壁通気構造は、第1乃至第9のいずれかの発明において、前記スペーサ部材は、前記壁面材の裏面に接着固定された接着面部を有していることを特徴とする。   The building wall ventilation structure according to a tenth aspect of the invention is characterized in that, in any one of the first to ninth aspects, the spacer member has an adhesive surface portion that is adhesively fixed to the back surface of the wall surface material. To do.

本発明によれば、スペーサ部材の接着面部が壁面材の裏面に接着剤により接着固定されているため、スペーサ部材が断熱材と壁面材との双方に固定されている。この場合、断熱材と壁面材とがスペーサ部材を介して互いに固定されるため、断熱材と壁面材との間隔すなわち通気層の厚みを所定の厚みに維持し易い。このため、通気層の通気性能を好適に確保することができる。   According to the present invention, since the bonding surface portion of the spacer member is bonded and fixed to the back surface of the wall material with the adhesive, the spacer member is fixed to both the heat insulating material and the wall surface material. In this case, since the heat insulating material and the wall surface material are fixed to each other via the spacer member, the distance between the heat insulating material and the wall surface material, that is, the thickness of the ventilation layer can be easily maintained at a predetermined thickness. For this reason, the ventilation performance of a ventilation layer can be ensured suitably.

第11の発明のスペーサ部材は、壁面材と、その裏面側に設けられる断熱材との間に通気層を形成するためのものであって、前記通気層に配設されるスペーサ部と、前記スペーサ部から板状に延びるとともに2つの端面部が頂部をなす山形状の切刃部を有し、該頂部を先端として前記通気層側から前記断熱材に差し込まれることで当該断熱材の厚み方向に延びる向きで設けられる差込部と、を備え、前記差込部が前記断熱材に差し込まれることで当該断熱材に取り付けられるものであり、前記切刃部は、前記差込部が前記断熱材に差し込まれた状態で、前記断熱材の厚み方向に対して斜め方向に延びる第1端面部と、前記厚み方向に延びる第2端面部とをそれぞれ前記端面部として有しており、前記差込部は複数設けられており、それら各差込部は、それぞれ前記断熱材に差し込まれた状態で、当該断熱材の厚み方向に延びる中心軸を中心とした同一円状に等間隔で並ぶように、かつ、各々の切刃部が当該同一円の円周方向に沿って同じ向きとなるように配置されていることを特徴とする。   A spacer member of an eleventh invention is for forming a ventilation layer between a wall surface material and a heat insulating material provided on the back surface thereof, and a spacer portion disposed in the ventilation layer, A thickness direction of the heat insulating material by extending into a plate shape from the spacer portion and having a mountain-shaped cutting blade portion with two end surfaces forming the top, and being inserted into the heat insulating material from the ventilation layer side with the top as a tip An insertion portion provided in a direction extending to the heat insulating material, and the insertion portion is attached to the heat insulating material by being inserted into the heat insulating material. In the state inserted into the material, the first end surface portion extending in an oblique direction with respect to the thickness direction of the heat insulating material and the second end surface portion extending in the thickness direction are respectively provided as the end surface portions, and the difference There are multiple indentations, and each of these differences The parts are inserted into the heat insulating material, and are arranged at equal intervals around the central axis extending in the thickness direction of the heat insulating material, and each cutting edge portion is the same circle. It arrange | positions so that it may become the same direction along the circumferential direction of this.

本発明におけるスペーサ部材を用いれば、上記第6の発明と同様の効果を得ることができる。   If the spacer member in this invention is used, the effect similar to the said 6th invention can be acquired.

第12の発明のスペーサ部材は、第11の発明において、筒状をなすとともにその軸線を前記断熱材の厚み方向に向けて配設される筒状部を備え、前記筒状部は、その一部が前記断熱材に差し込まれる前記複数の差込部となっており、それら各差込部は、前記筒状部の周方向に沿って等間隔で配置されており、前記筒状部において隣り合う前記差込部の間の端面が、前記差込部が前記断熱材に差し込まれた状態において当該断熱材の前記通気層側の面に当接される当接面部となっており、その当接面部が前記断熱材の前記通気層側の面に当接されることで、前記差込部が前記断熱材にそれ以上深く差し込まれることが規制されることを特徴とする。   In the eleventh invention, a spacer member according to a twelfth aspect includes a cylindrical portion that has a cylindrical shape and is disposed with its axis lined in the thickness direction of the heat insulating material. The plurality of insertion portions are inserted into the heat insulating material, and the insertion portions are arranged at equal intervals along the circumferential direction of the cylindrical portion, and are adjacent to each other in the cylindrical portion. The end surface between the fitting portions that fit together is a contact surface portion that comes into contact with the surface of the heat insulating material on the side of the ventilation layer in a state where the insertion portion is inserted into the heat insulating material. The contact surface portion is brought into contact with the surface of the heat insulating material on the air-permeable layer side, whereby the insertion portion is restricted from being inserted deeper into the heat insulating material.

本発明におけるスペーサ部材を用いれば、上記第8の発明と同様の効果を得ることができる。   If the spacer member in this invention is used, the effect similar to the said 8th invention can be acquired.

建物の外壁構造を示す横断面図。The cross-sectional view which shows the outer wall structure of a building. 壁内断熱材にスペーサ部材が取り付けられた状態を示す斜視図。The perspective view which shows the state by which the spacer member was attached to the heat insulating material in a wall. スペーサ部材の構成を示す斜視図。The perspective view which shows the structure of a spacer member. スペーサ部材の構成を示しており、(a)が同構成を示す平面図、(b)が正面図、(c)が(a)のA−A線断面図である。The structure of the spacer member is shown, (a) is a plan view showing the structure, (b) is a front view, and (c) is a cross-sectional view taken along line AA of (a). スペーサ部材及びその周辺の構成を示す縦断面図。The longitudinal cross-sectional view which shows the structure of a spacer member and its periphery. 他の実施形態におけるスペーサ部材を説明するための説明図。Explanatory drawing for demonstrating the spacer member in other embodiment. 他の実施形態におけるスペーサ部材を説明するための説明図。Explanatory drawing for demonstrating the spacer member in other embodiment. 他の実施形態におけるスペーサ部材を説明するための説明図。Explanatory drawing for demonstrating the spacer member in other embodiment. 他の実施形態における差込部を説明するための説明図。Explanatory drawing for demonstrating the insertion part in other embodiment. 他の実施形態におけるスペーサ部材を説明するための説明図。Explanatory drawing for demonstrating the spacer member in other embodiment.

以下に、本発明を具体化した一実施の形態について図面を参照しつつ説明する。なお、図1は建物の外壁構造を示す横断面図である。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing an outer wall structure of a building.

図1に示すように、建物10には、屋内外を仕切る外壁部11が設けられている。外壁部11において屋外側には外壁面を形成する外壁面材12が設けられ、その屋内側には内壁面(屋内面)を形成する内壁面材13が設けられている。外壁面材12は、窯業系サイディングにより構成されており、その内部に上下に延びる複数の中空部12aを有している。図示は省略するが、外壁面材12は固定金具を介して梁等に固定されている。なおここで、外壁面材12が「壁面材」に相当する。   As shown in FIG. 1, a building 10 is provided with an outer wall portion 11 that partitions the interior and the exterior. In the outer wall portion 11, an outer wall surface material 12 that forms an outer wall surface is provided on the outdoor side, and an inner wall surface material 13 that forms an inner wall surface (indoor surface) is provided on the indoor side. The outer wall surface material 12 is configured by ceramic siding, and has a plurality of hollow portions 12a extending vertically inside thereof. Although illustration is omitted, the outer wall surface material 12 is fixed to a beam or the like via a fixing metal fitting. Here, the outer wall surface material 12 corresponds to a “wall surface material”.

外壁面材12は、横並びに複数設けられている。隣接する外壁面材12の間の目地27(縦目地)にはシール材28が充填されている。このシール材28によって、雨水等の水が目地27を通じて外壁部11の内部へ浸入することが防止されている。   A plurality of outer wall materials 12 are provided side by side. Seals 28 are filled in joints 27 (vertical joints) between adjacent outer wall surfaces 12. The sealing material 28 prevents rain or other water from entering the outer wall portion 11 through the joint 27.

内壁面材13は、石膏ボードにより構成されている。内壁面材13は、図示しない下地材を介して柱や梁等に固定されている。外壁面材12と内壁面材13との間には壁内空間15が形成されている。壁内空間15には壁内断熱材14が設けられている。壁内断熱材14は、発泡系断熱材により形成されており、具体的には硬質ウレタンフォームにより形成されている。壁内断熱材14は、所定の厚みを有する矩形板状をなしており、外壁面材12及び内壁面材13のそれぞれに対して所定の隙間を隔てて対向配置されている。なおここで、壁内断熱材14が「断熱材」に相当する。   The inner wall surface material 13 is composed of a gypsum board. The inner wall surface material 13 is fixed to a column, a beam or the like via a base material (not shown). A wall space 15 is formed between the outer wall surface material 12 and the inner wall surface material 13. An in-wall heat insulating material 14 is provided in the in-wall space 15. The in-wall heat insulating material 14 is formed of a foam-based heat insulating material, and is specifically formed of a rigid urethane foam. The in-wall heat insulating material 14 has a rectangular plate shape having a predetermined thickness, and is disposed to face the outer wall surface material 12 and the inner wall surface material 13 with a predetermined gap therebetween. Here, the in-wall heat insulating material 14 corresponds to a “heat insulating material”.

壁内断熱材14は、壁内空間15において横並びに複数設けられている。これらの壁内断熱材14のうち、壁内空間15に立設された柱21に対して一方側には壁内断熱材14Aが設けられ、他方側には壁内断熱材14Bが設けられている。壁内断熱材14Aは後述するスペーサ部材30を介して外壁面材12の裏面側に固定されており、壁内断熱材14Bは壁内空間15に設置されたラチス柱22の屋外側に接着固定されている。なお、ラチス柱22は耐力壁として機能する幅広の柱であり、柱21に対して連結されている。   A plurality of in-wall heat insulating materials 14 are provided side by side in the in-wall space 15. Among these in-wall insulation materials 14, an in-wall insulation material 14 </ b> A is provided on one side with respect to the column 21 standing in the in-wall space 15, and an in-wall insulation material 14 </ b> B is provided on the other side. Yes. The in-wall heat insulating material 14A is fixed to the back side of the outer wall surface material 12 via a spacer member 30 described later, and the in-wall heat insulating material 14B is bonded and fixed to the outdoor side of the lattice pillar 22 installed in the inner wall space 15. Has been. The lattice pillar 22 is a wide pillar that functions as a bearing wall and is connected to the pillar 21.

柱21の屋外側面には、硬質ウレタンフォームよりなる柱断熱材23が接着剤により接着固定されている。柱断熱材23は、その両端部において各壁内断熱材14A,14Bと連続している。これにより、壁内空間15には壁内断熱材14A,14Bと柱断熱材23とによって連続した断熱層が形成されている。また、この断熱層は、柱21,22や梁等の構造体に対して屋外側に形成されており、それ故本外壁部11では外張り断熱工法が採用されている。   A column heat insulating material 23 made of hard urethane foam is bonded and fixed to the outdoor side surface of the column 21 with an adhesive. The column heat insulating material 23 is continuous with the in-wall heat insulating materials 14A and 14B at both ends thereof. Thus, a continuous heat insulating layer is formed in the wall space 15 by the wall heat insulating materials 14A and 14B and the column heat insulating material 23. In addition, this heat insulating layer is formed on the outdoor side with respect to the structures such as the columns 21 and 22 and the beams, and therefore, the outer heat insulating method is employed in the outer wall portion 11.

壁内断熱材14Aは横並びに複数設けられており、隣接する壁内断熱材14A同士が互いの端面同士を当接させた状態で配置されている。隣接する壁内断熱材14Aの境界部にはそれら両断熱材14Aの表面(詳しくは屋内側面)に跨がって気密テープ29が貼り付けられている。これにより、両断熱材14Aの間の目地を通じた空気の流通が防止されている。   A plurality of the in-wall heat insulating materials 14A are provided side by side, and the adjacent in-wall heat insulating materials 14A are arranged in a state in which their end faces are in contact with each other. An airtight tape 29 is attached to a boundary portion between adjacent heat insulating materials 14A across the surfaces (specifically, indoor side surfaces) of both the heat insulating materials 14A. Thereby, the circulation of the air through the joint between both heat insulating materials 14A is prevented.

外壁面材12と壁内断熱材14Aとの間には通気層16が形成されている。通気層16は、外壁面材12(及び壁内断熱材14)の面方向(上下方向かつ幅方向)に沿って拡がる空間となっており、その厚み(詳しくは外壁部11の壁厚み方向における長さ)L1が上記面方向全域に亘って一定とされている。また、図示は省略するが、通気層16はその下端側において屋外に開放されており、この通気層16を通じて壁内空間15の湿気等を屋外に排出できるようになっている。   A ventilation layer 16 is formed between the outer wall surface material 12 and the in-wall heat insulating material 14A. The ventilation layer 16 is a space extending along the surface direction (vertical direction and width direction) of the outer wall surface material 12 (and the in-wall heat insulating material 14), and its thickness (specifically, in the wall thickness direction of the outer wall portion 11). The length L1 is constant over the entire surface direction. Although not shown, the ventilation layer 16 is open to the outside on the lower end side, and moisture and the like in the wall space 15 can be discharged to the outside through the ventilation layer 16.

壁内断熱材14Aにはスペーサ部材30が取り付けられている。スペーサ部材30は、壁内断熱材14Aと外壁面材12との間に一部を配設することにより、それら両部材12,14Aの間に通気層16を形成するものである。以下、このスペーサ部材30の構成について図2乃至図4に基づいて詳しく説明する。なお、図2は壁内断熱材14にスペーサ部材30が取り付けられた状態を示す斜視図である。図3はスペーサ部材30の構成を示す斜視図である。図4はスペーサ部材30の構成を示しており、(a)が同構成を示す平面図、(b)が正面図、(c)が(a)のA−A線断面図である。   A spacer member 30 is attached to the in-wall heat insulating material 14A. The spacer member 30 forms a ventilation layer 16 between both the members 12 and 14A by disposing a part between the in-wall heat insulating material 14A and the outer wall surface material 12. Hereinafter, the configuration of the spacer member 30 will be described in detail with reference to FIGS. FIG. 2 is a perspective view showing a state in which the spacer member 30 is attached to the in-wall heat insulating material 14. FIG. 3 is a perspective view showing the configuration of the spacer member 30. 4A and 4B show the configuration of the spacer member 30, where FIG. 4A is a plan view showing the configuration, FIG. 4B is a front view, and FIG. 4C is a cross-sectional view taken along line AA in FIG.

図1及び図2に示すように、スペーサ部材30は、発泡ポリスチレン樹脂により形成されており、壁内断熱材14Aにおける通気層16(換言すると外壁面材12)側の面に複数(具体的には6つ)取り付けられている。それら各スペーサ部材30は、壁内断熱材14Aにおける端縁側に所定の間隔で取り付けられており、詳しくは壁内断熱材14Aにおける幅方向の両端部においてそれぞれ上下方向に等間隔で複数(3つ)ずつ取り付けられている。   As shown in FIGS. 1 and 2, the spacer member 30 is formed of a foamed polystyrene resin, and a plurality (specifically, a plurality of spacer members 30 on the side of the ventilation layer 16 (in other words, the outer wall surface material 12) in the in-wall heat insulating material 14 </ b> A. 6) are attached. Each of the spacer members 30 is attached to the end edge side of the in-wall heat insulating material 14A at a predetermined interval, and more specifically, a plurality of (three) ) Are attached one by one.

なお、スペーサ部材30は、必ずしも発泡ポリスチレン樹脂により形成されている必要はなく、ABS樹脂等その他の樹脂材料により形成されていてもよい。また、スペーサ部材30は必ずしも樹脂材料により形成されている必要はなく、ステンレス等の金属材料により形成されていてもよい。   In addition, the spacer member 30 does not necessarily need to be formed with expanded polystyrene resin, and may be formed with other resin materials, such as ABS resin. Further, the spacer member 30 is not necessarily formed of a resin material, and may be formed of a metal material such as stainless steel.

図3及び図4に示すように、スペーサ部材30は、円筒状に形成された筒状部31を有している。筒状部31において軸線方向の一端側には、複数(図3及び図4では5つ)の切刃部32が形成されている。これら各切刃部32はそれぞれ壁内断熱材14Aに差し込まれる差込部となっており、筒状部31を構成する周壁部の一部により形成されている。各切刃部32は、筒状部31の周方向に沿って所定の間隔(詳しくは等間隔)で配置されている。この場合、各切刃部32は互いの板面を異なる方向に向けて配置されている。   As shown in FIGS. 3 and 4, the spacer member 30 has a cylindrical portion 31 formed in a cylindrical shape. A plurality of (five in FIG. 3 and FIG. 4) cutting blade portions 32 are formed on one end side in the axial direction of the cylindrical portion 31. Each of these cutting blade portions 32 is an insertion portion that is inserted into the in-wall heat insulating material 14 </ b> A, and is formed by a part of the peripheral wall portion that constitutes the tubular portion 31. The cutting blade portions 32 are arranged at predetermined intervals (specifically, equal intervals) along the circumferential direction of the cylindrical portion 31. In this case, the cutting blade portions 32 are arranged with their plate surfaces facing in different directions.

切刃部32は、筒状部31の軸線方向における一端側に向けて凸となる山形状をなしている。切刃部32における山形状の頂部は先の尖った尖端部35となっている。この尖端部35は、筒状部31の軸線方向において切刃部32(ひいては筒状部31)の一端部を構成している。   The cutting edge portion 32 has a mountain shape that is convex toward one end side in the axial direction of the cylindrical portion 31. The top of the mountain shape in the cutting edge portion 32 is a pointed end portion 35 having a sharp point. The pointed portion 35 constitutes one end portion of the cutting edge portion 32 (and thus the tubular portion 31) in the axial direction of the tubular portion 31.

切刃部32には、尖端部35を形成する2つの端面部36,37が形成されている。これら各端面部36,37のうち、第1端面部36は筒状部31の軸線方向に対して傾斜する方向に延びており、第2端面部37は筒状部31の軸線方向に延びている。また、切刃部32は、その厚みが筒状部31の軸線方向において尖端部35に向かうにつれて小さくなっている。   The cutting edge portion 32 is formed with two end surface portions 36 and 37 that form a pointed end portion 35. Among these end surface portions 36 and 37, the first end surface portion 36 extends in a direction inclined with respect to the axial direction of the tubular portion 31, and the second end surface portion 37 extends in the axial direction of the tubular portion 31. Yes. Further, the thickness of the cutting edge portion 32 decreases as it goes toward the tip portion 35 in the axial direction of the cylindrical portion 31.

各切刃部32はそれぞれ、筒状部31の周方向において同じ向きとなるように配置されている。つまり、各切刃部32において第1端面部36はそれぞれ筒状部31の周方向における一方側を向いており、第2端面部37はそれぞれ周方向における他方側を向いている。   Each cutting blade part 32 is arrange | positioned so that it may become the same direction in the circumferential direction of the cylindrical part 31, respectively. That is, in each cutting edge part 32, the 1st end surface part 36 has faced the one side in the circumferential direction of the cylindrical part 31, respectively, and the 2nd end surface part 37 has faced the other side in the circumferential direction, respectively.

筒状部31において軸線方向における切刃部32よりも他端側はスペーサ筒部41となっている。スペーサ筒部41は、外壁面材12と壁内断熱材14との間(つまり通気層16)に配設されてスペーサとして機能する部分である。スペーサ筒部41の外周面には、軸線方向に延びる複数のリブ42が周方向に所定の間隔で設けられている。この場合、スペーサ筒部41の外周面はこれらのリブ42によって周方向に凹凸状をなしており、換言するとスペーサ筒部41の外周面には複数の凹凸部が形成されている。   The other end side of the cylindrical part 31 with respect to the cutting edge part 32 in the axial direction is a spacer cylinder part 41. The spacer cylinder portion 41 is a portion that functions as a spacer by being disposed between the outer wall surface material 12 and the in-wall heat insulating material 14 (that is, the ventilation layer 16). A plurality of ribs 42 extending in the axial direction are provided on the outer peripheral surface of the spacer cylinder portion 41 at predetermined intervals in the circumferential direction. In this case, the outer peripheral surface of the spacer tube portion 41 is uneven in the circumferential direction by these ribs 42, in other words, a plurality of uneven portions are formed on the outer peripheral surface of the spacer tube portion 41.

筒状部31(スペーサ筒部41)において隣り合う各切刃部32の間の端面は、壁内断熱材14Aの通気層16側の面に当接される当接面部39となっている。この当接面部39は隣り合う各切刃部32の間ごとにそれぞれ設けられており、それ故筒状部31では切刃部32と当接面部39とが周方向に交互に並んで配置されている。また、各当接面部39はそれぞれ筒状部31の軸線方向と直交する同一平面上に配置されており、当該軸線方向で見た場合に切刃部32における尖端部35とは反対側の端部と同位置に存在している。したがって、当接面部39は、筒状部31の軸線方向において切刃部32及びスペーサ筒部41の境界部と同位置に存在している。   An end surface between the adjacent cutting blade portions 32 in the cylindrical portion 31 (spacer cylindrical portion 41) is an abutting surface portion 39 that abuts on the surface of the in-wall heat insulating material 14A on the side of the ventilation layer 16. The contact surface portion 39 is provided between each adjacent cutting blade portion 32, and therefore, in the cylindrical portion 31, the cutting blade portion 32 and the contact surface portion 39 are alternately arranged in the circumferential direction. ing. Each contact surface portion 39 is disposed on the same plane orthogonal to the axial direction of the cylindrical portion 31, and when viewed in the axial direction, the end of the cutting edge portion 32 opposite to the pointed portion 35. It exists in the same position as the part. Therefore, the abutting surface portion 39 exists at the same position as the boundary portion between the cutting edge portion 32 and the spacer cylinder portion 41 in the axial direction of the cylindrical portion 31.

筒状部31(スペーサ筒部41)において軸線方向の他端部すなわち切刃部32側とは反対側の端部には、外壁面材12の裏面に固定される固定板部45が設けられている。固定板部45は、筒状部31と同じ外径を有する円板状をなしており、筒状部31の他端開口を塞ぐように設けられている。   A fixed plate portion 45 that is fixed to the back surface of the outer wall surface material 12 is provided at the other end portion in the axial direction of the tubular portion 31 (spacer tubular portion 41), that is, the end portion opposite to the cutting blade portion 32 side. ing. The fixed plate portion 45 has a disk shape having the same outer diameter as the cylindrical portion 31 and is provided so as to close the other end opening of the cylindrical portion 31.

固定板部45の外側面は、外壁面材12の裏面に接着固定される接着面部46となっている。接着面部46は、筒状部31の軸線方向と直交する平坦面となっている。本スペーサ部材30では、この接着面部46から当接面部39までの距離L2が通気層16の厚みL1と同じ寸法に設定されている。   The outer surface of the fixed plate portion 45 is an adhesive surface portion 46 that is adhesively fixed to the back surface of the outer wall surface material 12. The bonding surface portion 46 is a flat surface orthogonal to the axial direction of the cylindrical portion 31. In the spacer member 30, the distance L <b> 2 from the adhesion surface portion 46 to the contact surface portion 39 is set to the same dimension as the thickness L <b> 1 of the ventilation layer 16.

次に、スペーサ部材30が壁内断熱材14Aに取り付けられた取付状態の構成について図5に基づいて説明する。なお、図5はスペーサ部材30及びその周辺の構成を示す縦断面図であり、図1のB−B線断面図に相当する。   Next, the structure of the attachment state in which the spacer member 30 is attached to the in-wall heat insulating material 14A will be described with reference to FIG. 5 is a longitudinal sectional view showing the configuration of the spacer member 30 and its periphery, and corresponds to the sectional view taken along the line BB of FIG.

図5に示すように、スペーサ部材30は、筒状部31の軸線方向を壁内断熱材14Aの厚み方向に向けて当該断熱材14Aに取り付けられている。スペーサ部材30の各切刃部32はそれぞれ尖端部35を先端として通気層16側から壁内断熱材14Aに差し込まれている。この差し込み状態において、スペーサ部材30の各当接面部39はそれぞれ壁内断熱材14Aの通気層16側の面に当接されている。したがって、各切刃部32はそれぞれその全体が壁内断熱材14に差し込まれた状態となっている。そして、この切刃部32の差し込みによって、スペーサ部材30が壁内断熱材14Aに取り付けられている。   As shown in FIG. 5, the spacer member 30 is attached to the heat insulating material 14 </ b> A with the axial direction of the cylindrical portion 31 facing the thickness direction of the in-wall heat insulating material 14 </ b> A. Each cutting blade portion 32 of the spacer member 30 is inserted into the in-wall heat insulating material 14 </ b> A from the ventilation layer 16 side with the pointed portion 35 as a tip. In this inserted state, each contact surface portion 39 of the spacer member 30 is in contact with the surface on the ventilation layer 16 side of the in-wall heat insulating material 14A. Therefore, each of the cutting blade portions 32 is entirely inserted into the in-wall heat insulating material 14. The spacer member 30 is attached to the in-wall heat insulating material 14 </ b> A by inserting the cutting blade portion 32.

各切刃部32が壁内断熱材14Aに差し込まれた状態では、各切刃部32が互いの板面を異なる方向に向けて配置されている。この場合、各切刃部32のうちいずれかの切刃部32については縦向きの状態で配置され、図5では各切刃部32のうち2つの切刃部32(以下、これらの切刃部32の符号にそれぞれA,Bを付す)が縦向きの状態で配置されている。これらの切刃部32A,32Bはそれぞれ各端面部36,37を上下に向けて配置されており、具体的には切刃部32Aについては、第1端面部36を上側、第2端面部37を下側に向けて配置され、切刃部32Bについては、第2端面部37を上側、第1端面部36を下側に向けて配置されている。   In a state where each cutting blade portion 32 is inserted into the in-wall heat insulating material 14A, each cutting blade portion 32 is disposed with its plate surface facing in a different direction. In this case, any one of the cutting blade portions 32 is arranged in a vertically oriented state. In FIG. 5, two cutting blade portions 32 (hereinafter referred to as these cutting blades) of each cutting blade portion 32 in FIG. (A and B are attached to the reference numerals of the part 32), respectively, in a vertically oriented state. These cutting blade portions 32A and 32B are arranged with their respective end surface portions 36 and 37 facing up and down. Specifically, for the cutting blade portion 32A, the first end surface portion 36 is on the upper side and the second end surface portion 37 is on. The cutting edge 32B is disposed with the second end surface 37 facing upward and the first end surface 36 facing downward.

スペーサ部材30において壁内断熱材14Aに差し込まれていない部分、すなわちスペーサ筒部41と固定板部45とはそれぞれ通気層16に配設されている。この場合、スペーサ筒部41の当接面部39は上述したように壁内断熱材14Aの通気層16側の面に当接され、固定板部45(詳しくは接着面部46)は外壁面材12の裏面(通気層16側の面)に当接されている。これにより、外壁面材12と壁内断熱材14Aとが、スペーサ筒部41及び固定板部45により当該断熱材14Aの厚み方向に離間されており、その結果外壁面材12と壁内断熱材14Aとの間に通気層16が形成されている。つまり、本スペーサ部材30では、スペーサ筒部41及び固定板部45によりスペーサ部が構成されている。   The portions of the spacer member 30 that are not inserted into the in-wall heat insulating material 14 </ b> A, that is, the spacer cylinder portion 41 and the fixing plate portion 45 are respectively disposed in the ventilation layer 16. In this case, as described above, the contact surface 39 of the spacer cylinder portion 41 is in contact with the surface of the in-wall heat insulating material 14A on the side of the ventilation layer 16, and the fixing plate portion 45 (specifically, the adhesion surface portion 46) is the outer wall surface material 12. Is in contact with the back surface (the surface on the air-permeable layer 16 side). Thereby, the outer wall surface material 12 and the in-wall heat insulating material 14A are separated from each other in the thickness direction of the heat insulating material 14A by the spacer cylinder portion 41 and the fixing plate portion 45, and as a result, the outer wall surface material 12 and the in-wall heat insulating material. The ventilation layer 16 is formed between 14A. That is, in the spacer member 30, the spacer cylinder portion 41 and the fixed plate portion 45 constitute a spacer portion.

固定板部45の接着面部46は外壁面材12の裏面(通気層16側の面)に接着材を用いて接着固定されている。これにより、スペーサ部材30が外壁面材12に固定され、ひいては壁内断熱材14Aがスペーサ部材30を介して外壁面材12に固定されている。   The bonding surface portion 46 of the fixing plate portion 45 is bonded and fixed to the back surface of the outer wall surface material 12 (the surface on the ventilation layer 16 side) using an adhesive material. Thereby, the spacer member 30 is fixed to the outer wall surface material 12, and as a result, the in-wall heat insulating material 14 </ b> A is fixed to the outer wall surface material 12 through the spacer member 30.

次に、スペーサ部材30を用いて外壁面材12と壁内断熱材14Aとの間に通気層16を形成する際の作業手順について説明する。なおここでは、外壁面材12が予め建物側に組み付けられているものとして説明を行う。   Next, an operation procedure when the ventilation layer 16 is formed between the outer wall surface material 12 and the in-wall heat insulating material 14A using the spacer member 30 will be described. Here, the description will be made on the assumption that the outer wall surface material 12 is assembled in advance on the building side.

まず、壁内断熱材14Aに各スペーサ部材30を取り付ける取付作業を行う。この取付作業は、例えば壁内断熱材14Aを寝かせた状態で行う。この場合、壁内断熱材14Aに対して上方からスペーサ部材30の各切刃部32をそれぞれ尖端部35を先端として差し込む。また、この際各切刃部32を当接面部39が壁内断熱材14Aの上面に当接するまで壁内断熱材14Aに差し込む。これにより、スペーサ部材30が壁内断熱材14Aに取り付けられ、スペーサ筒部41と固定板部45とが壁内断熱材14Aから突出した状態で設けられる。なお、切刃部32の壁内断熱材14Aへの差し込みは、スペーサ筒部41の外周面を把持した状態で行う。   First, the attachment operation | work which attaches each spacer member 30 to 14 A of heat insulation materials in a wall is performed. This attachment work is performed, for example, with the in-wall heat insulating material 14A laid down. In this case, each cutting blade part 32 of the spacer member 30 is inserted into the in-wall heat insulating material 14A from above with the pointed part 35 as the tip. Further, at this time, each cutting edge portion 32 is inserted into the in-wall heat insulating material 14A until the abutting surface portion 39 abuts on the upper surface of the in-wall heat insulating material 14A. Thereby, the spacer member 30 is attached to the in-wall heat insulating material 14A, and the spacer cylinder portion 41 and the fixing plate portion 45 are provided in a state of protruding from the in-wall heat insulating material 14A. The cutting blade portion 32 is inserted into the in-wall heat insulating material 14 </ b> A while the outer peripheral surface of the spacer tube portion 41 is gripped.

次に、各スペーサ部材30の接着面部46にそれぞれ接着剤を塗布する塗布作業を行う。   Next, the application | coating operation | work which apply | coats an adhesive agent to the adhesion surface part 46 of each spacer member 30 is performed.

続いて、壁内断熱材14Aを外壁面材12の裏面側に設置する設置作業を行う。この設置作業では、壁内断熱材14Aに取り付けられたスペーサ部材30を外壁面材12の側に向けて壁内断熱材14Aを設置する。そして、この設置に際し、スペーサ部材30の接着面部46を上記塗布作業において塗布した接着剤を用いて外壁面材12の裏面に接着固定する。これにより、壁内断熱材14Aがスペーサ部材30を介して外壁面材12に固定され、壁内断熱材14Aと外壁面材12との間に通気層16が形成される。   Then, the installation work which installs 14 A of heat insulation materials in a wall in the back surface side of the outer wall surface material 12 is performed. In this installation operation, the in-wall insulation 14A is installed with the spacer member 30 attached to the in-wall insulation 14A facing the outer wall surface 12 side. In this installation, the adhesive surface portion 46 of the spacer member 30 is adhered and fixed to the back surface of the outer wall surface material 12 using the adhesive applied in the application operation. Thus, the in-wall heat insulating material 14 </ b> A is fixed to the outer wall surface material 12 through the spacer member 30, and the ventilation layer 16 is formed between the in-wall heat insulating material 14 </ b> A and the outer wall surface material 12.

以上、詳述した本実施形態の構成によれば、以下の優れた効果が得られる。   As mentioned above, according to the structure of this embodiment explained in full detail, the following outstanding effects are acquired.

スペーサ部材30のスペーサ部(スペーサ筒部41及び固定板部45)を外壁面材12と壁内断熱材14Aとの間に配設することで、それら両部材12,14Aの間に通気層16を形成するようにした。そして、スペーサ部材30には、先の尖った尖端部35を尖端として壁内断熱材14Aに差し込み可能な切刃部32を設け、その切刃部32を壁内断熱材14Aに差し込むことによりスペーサ部材30を壁内断熱材14Aに取り付けるようにした。   By disposing the spacer portion (spacer cylinder portion 41 and fixing plate portion 45) of the spacer member 30 between the outer wall surface material 12 and the in-wall heat insulating material 14A, the ventilation layer 16 is provided between the both members 12, 14A. To form. Then, the spacer member 30 is provided with a cutting edge portion 32 that can be inserted into the in-wall heat insulating material 14A with the sharp pointed portion 35 as a pointed end. By inserting the cutting edge portion 32 into the in-wall heat insulating material 14A, the spacer The member 30 was attached to the in-wall heat insulating material 14A.

この場合、切刃部32を壁内断熱材14Aに差し込むという比較的簡単な作業でスペーサ部材30を壁内断熱材14Aに取り付けることができるため、スペーサ部材30の壁内断熱材14Aへの取り付けを短時間で行うことができる。また、スペーサ部材30を壁内断熱材14Aに接着剤により接着固定する場合とは異なり、接着剤が乾くのを待つという時間が不要となるため、スペーサ部材30を壁内断熱材14Aに取り付けた後すぐに壁内断熱材14Aを外壁面材12の裏面側に設置することができる。よって、この場合、外壁面材12と壁内断熱材14Aとの間に通気層16を形成する上で、施工工数の削減を図ることができる。   In this case, since the spacer member 30 can be attached to the in-wall heat insulating material 14A by a relatively simple operation of inserting the cutting blade portion 32 into the in-wall heat insulating material 14A, the spacer member 30 can be attached to the in-wall heat insulating material 14A. Can be performed in a short time. Further, unlike the case where the spacer member 30 is bonded and fixed to the in-wall heat insulating material 14A with an adhesive, it is not necessary to wait for the adhesive to dry, so the spacer member 30 is attached to the in-wall heat insulating material 14A. Soon after, the in-wall heat insulating material 14 </ b> A can be installed on the back surface side of the outer wall surface material 12. Therefore, in this case, when the ventilation layer 16 is formed between the outer wall surface material 12 and the in-wall heat insulating material 14A, the number of construction steps can be reduced.

切刃部32(差込部)を、壁内断熱材14Aへの差込状態において同断熱材14Aの厚み方向に延びる板状に形成したため、差込部を針状に形成した場合と比べて、切刃部32(差込部)における壁内断熱材14Aとの密着面を広く確保することができる。これにより、切刃部32ひいてはスペーサ部材30の壁内断熱材14Aからの抜け落ちを抑制することができる。   Since the cutting edge portion 32 (insertion portion) is formed in a plate shape extending in the thickness direction of the heat insulating material 14A in the inserted state into the in-wall heat insulating material 14A, compared with the case where the insertion portion is formed in a needle shape. It is possible to ensure a wide contact surface with the in-wall heat insulating material 14A in the cutting blade portion 32 (insertion portion). Thereby, the falling-off from the cutting blade part 32 and by extension, the heat insulating material 14A in the wall of the spacer member 30 can be suppressed.

また、切刃部32と壁内断熱材14Aとが面当たりしていることから、スペーサ部材30に壁内断熱材14Aの板面方向における荷重がかかってもスペーサ部材30が回転してしまうのを抑制することができる。これにより、スペーサ部材30を壁内断熱材14Aに安定した状態で取り付けることができる。   In addition, since the cutting edge portion 32 and the in-wall heat insulating material 14A are in contact with each other, the spacer member 30 rotates even when a load is applied to the spacer member 30 in the plate surface direction of the in-wall heat insulating material 14A. Can be suppressed. Thereby, the spacer member 30 can be attached to the in-wall heat insulating material 14A in a stable state.

切刃部32についてその厚みを壁内断熱材14Aの厚み方向(換言すると筒状部31の軸線方向)において尖端部35に向かうにつれ小さくしたため、切刃部32を壁内断熱材14Aに尖端部35を先端として差し込む際その差し込みがし易い。これにより、スペーサ部材30を壁内断熱材14Aに取り付ける作業を容易とすることができる。   Since the thickness of the cutting edge portion 32 is reduced toward the tip end portion 35 in the thickness direction of the in-wall heat insulating material 14A (in other words, the axial direction of the tubular portion 31), the cutting edge portion 32 is formed on the in-wall heat insulating material 14A. When inserting 35 with the tip, it is easy to insert. Thereby, the operation | work which attaches the spacer member 30 to 14 A of heat insulation materials in a wall can be made easy.

板状の切刃部32が壁内断熱材14Aに差し込まれている構成では、切刃部32の板厚方向への荷重がスペーサ部材30に作用しても、当該スペーサ部材30の位置ずれを抑制することが可能となる。そこでこの点に鑑みて、スペーサ部材30に板状の切刃部32を複数設け、これら各切刃部32を互いの板面が異なる方向を向くように配置した。この場合、スペーサ部材30に作用する複数方向の荷重に対してスペーサ部材30の位置ずれ抑制効果を得ることができるため、スペーサ部材30を壁内断熱材14Aに安定した状態で取り付けることができる。   In the configuration in which the plate-shaped cutting edge portion 32 is inserted into the in-wall heat insulating material 14 </ b> A, even if a load in the plate thickness direction of the cutting edge portion 32 acts on the spacer member 30, the spacer member 30 is displaced. It becomes possible to suppress. Therefore, in view of this point, the spacer member 30 is provided with a plurality of plate-like cutting blade portions 32, and the cutting blade portions 32 are arranged so that their plate surfaces face different directions. In this case, since the effect of suppressing the displacement of the spacer member 30 with respect to loads in a plurality of directions acting on the spacer member 30 can be obtained, the spacer member 30 can be attached to the in-wall heat insulating material 14A in a stable state.

スペーサ部材30が、互いの板面が異なる方向を向く複数の切刃部32を有する構成では、切刃部32が壁内断熱材14Aに差し込まれた状態において、いずれかの切刃部32が壁内断熱材14Aに対して縦向きの状態で差し込まれることが考えられる。この場合、その縦向きの切刃部32において下側を向く端面部が尖端部35から通気層16側に向かって下方傾斜していると、その傾斜面に沿って切刃部32が壁内断熱材14Aから抜け落ち易くなることが考えられる。この点、各切刃部32のそれぞれにおいて2つの端面部36,37のうち一方を壁内断熱材14Aの厚み方向に対して斜め方向に延びる第1端面部36、他方を前記厚み方向に延びる第2端面部37とした上記の構成によれば、いずれかの切刃部32が壁内断熱材14Aに縦向きに差し込まれたとしても、その切刃部32(具体的には切刃部32A)が第2端面部37を下側に向けて差し込まれていれば、当該切刃部32Aについては壁内断熱材14Aからの抜け落ちを抑制することができる。そのため、スペーサ部材30をより一層安定した状態で壁内断熱材14Aに取り付けることができる。   In the configuration in which the spacer member 30 has a plurality of cutting blade portions 32 that face in different directions from each other, in the state in which the cutting blade portion 32 is inserted into the in-wall heat insulating material 14A, It is conceivable to be inserted in a vertically oriented state with respect to the in-wall heat insulating material 14A. In this case, when the end surface portion facing downward in the vertical cutting blade portion 32 is inclined downward from the sharp tip portion 35 toward the ventilation layer 16 side, the cutting blade portion 32 extends along the inclined surface in the wall. It is conceivable that the heat insulating material 14A can easily fall off. In this regard, in each of the cutting edge portions 32, one of the two end surface portions 36 and 37 is extended in the oblique direction with respect to the thickness direction of the in-wall heat insulating material 14A, and the other is extended in the thickness direction. According to said structure used as the 2nd end surface part 37, even if any cutting blade part 32 was inserted in 14 A of heat insulation materials in the wall vertically, the cutting blade part 32 (specifically cutting blade part) If 32A) is inserted with the second end surface portion 37 facing downward, the cutting blade portion 32A can be prevented from falling off from the in-wall heat insulating material 14A. Therefore, the spacer member 30 can be attached to the in-wall heat insulating material 14A in a more stable state.

複数の切刃部32を、それぞれ壁内断熱材14Aに差し込まれた状態で、当該断熱材14Aの厚み方向に延びる中心軸(筒状部31の軸線に相当)を中心とした同一円状に等間隔で並ぶように、かつ、当該同一円の円周方向に沿って同じ向きとなるように配置した。この場合、スペーサ部材30が壁内断熱材14Aに対して前記円周方向におけるいずれの向きで取り付けられたとしても、スペーサ部材30を同様の取付状態で取り付けることができる。つまり、この場合、スペーサ部材30を前記円周方向においていずれの向きで取り付けたとしても、上記第2端面部37による切刃部32の抜け落ち抑制効果を得ることができるため、スペーサ部材30を壁内断熱材14Aに取り付ける際、その取付向き(具体的には切刃部32の向き)をいちいち気にしなくてもよくその取付作業を容易とすることができる。   The plurality of cutting edge portions 32 are inserted into the in-wall heat insulating material 14A, respectively, in the same circular shape centering on the central axis (corresponding to the axis of the cylindrical portion 31) extending in the thickness direction of the heat insulating material 14A. They were arranged so as to be arranged at equal intervals and in the same direction along the circumferential direction of the same circle. In this case, even if the spacer member 30 is attached to the in-wall heat insulating material 14A in any direction in the circumferential direction, the spacer member 30 can be attached in the same attachment state. That is, in this case, even if the spacer member 30 is attached in any direction in the circumferential direction, the effect of suppressing the falling off of the cutting edge portion 32 by the second end surface portion 37 can be obtained. When attaching to the inner heat insulating material 14A, it is not necessary to care about the direction of attachment (specifically, the direction of the cutting edge portion 32), and the attachment operation can be facilitated.

スペーサ部材30に、切刃部32が壁内断熱材14Aに差し込まれた状態において壁内断熱材14Aの通気層16側の面に当接される当接面部39を設け、その当接面部39の当接によって切刃部32がそれ以上壁内断熱材14Aに深く差し込まれるのを規制するようにした。この場合、切刃部32を壁内断熱材14Aに差し込む際、当接面部39が壁内断熱材14Aの通気層16側の面に当接するまで切刃部32を壁内断熱材14Aに差し込むことにより、スペーサ部材30において壁内断熱材14Aから通気層16側に突出する部分の突出量を規定することができる。この突出部分は、外壁面材12と壁内断熱材14Aとの間に配設されて通気層16を形成する部分(スペーサ部)となるため、結果として通気層16の厚みを規定することができる。これにより、切刃部32を壁内断熱材14Aに差し込む際、差し込み深さの調整を行うといった面倒な作業を行わなくても、通気層16の厚みを所望の厚みに設定することができる。   The spacer member 30 is provided with an abutting surface portion 39 that abuts against the surface of the in-wall heat insulating material 14A on the side of the ventilation layer 16 in a state where the cutting edge portion 32 is inserted into the in-wall insulating material 14A. This prevents the cutting blade portion 32 from being inserted deeper into the in-wall heat insulating material 14A. In this case, when the cutting blade portion 32 is inserted into the in-wall heat insulating material 14A, the cutting blade portion 32 is inserted into the in-wall heat insulating material 14A until the abutting surface portion 39 abuts the surface of the in-wall heat insulating material 14A on the side of the ventilation layer 16. Thereby, the protrusion amount of the portion of the spacer member 30 that protrudes from the in-wall heat insulating material 14 </ b> A toward the ventilation layer 16 can be defined. Since this projecting portion is a portion (spacer portion) that is disposed between the outer wall surface material 12 and the in-wall heat insulating material 14A and forms the ventilation layer 16, the thickness of the ventilation layer 16 can be regulated as a result. it can. Thereby, when inserting the cutting blade part 32 in the in-wall heat insulating material 14A, the thickness of the ventilation layer 16 can be set to a desired thickness without performing a troublesome operation of adjusting the insertion depth.

また、施工後において、スペーサ部材30が外壁面材12側から荷重を受けた場合でも、切刃部32が壁内断熱材14Aにさらに深く差し込まれることが規制されるため、通気層16の厚みを所定の厚みに維持し易い。これにより、通気層16の通気性能を長期に亘って好適に確保することができる。   Further, after the construction, even when the spacer member 30 receives a load from the outer wall surface material 12 side, the cutting blade portion 32 is restricted from being inserted deeper into the in-wall heat insulating material 14A. Is easily maintained at a predetermined thickness. Thereby, the ventilation performance of the ventilation layer 16 can be suitably ensured over a long period of time.

より具体的には、スペーサ部材30の筒状部31において隣り合う切刃部32の間の端面を当接面部39とした。このように筒状部31の端面を利用して当接面部39を構成することで、当接面部39により得られる上述の効果を簡素な構成で得ることができる。   More specifically, the end surface between the adjacent cutting blade portions 32 in the cylindrical portion 31 of the spacer member 30 is defined as the contact surface portion 39. Thus, by configuring the contact surface portion 39 using the end surface of the cylindrical portion 31, the above-described effects obtained by the contact surface portion 39 can be obtained with a simple configuration.

スペーサ部材30において通気層16に配置されるスペーサ筒部41は切刃部32を壁内断熱材14Aに差し込む際には把持される部位となることが考えられる。この点、スペーサ筒部41の外周面に複数のリブ42を設けたため、スペーサ筒部41を把持した状態で切刃部32を壁内断熱材14Aに差し込む際、手が滑る等の不都合を生じにくくすることができる。そのため、切刃部32の壁内断熱材14Aへの差し込み作業を行い易くすることができる。   It is conceivable that the spacer cylinder portion 41 disposed in the ventilation layer 16 in the spacer member 30 becomes a portion to be gripped when the cutting blade portion 32 is inserted into the in-wall heat insulating material 14A. In this regard, since the plurality of ribs 42 are provided on the outer peripheral surface of the spacer cylinder portion 41, when the cutting blade portion 32 is inserted into the in-wall heat insulating material 14A while holding the spacer cylinder portion 41, inconvenience such as hand slipping occurs. Can be difficult. Therefore, it is possible to facilitate the insertion work of the cutting blade portion 32 into the in-wall heat insulating material 14A.

スペーサ部材30の接着面部46を外壁面材12の裏面に接着固定したため、スペーサ部材30を壁内断熱材14Aと外壁面材12との双方に対して固定することができる。この場合、壁内断熱材14Aと外壁面材12とがスペーサ部材30を介して固定されるため、それら両部材12,14Aの間の間隔すなわち通気層16の厚みを所定寸法に維持し易い。このため、通気層16の通気性能を好適に確保することができる。   Since the bonding surface portion 46 of the spacer member 30 is bonded and fixed to the back surface of the outer wall surface material 12, the spacer member 30 can be fixed to both the in-wall heat insulating material 14A and the outer wall surface material 12. In this case, since the in-wall heat insulating material 14A and the outer wall surface material 12 are fixed via the spacer member 30, the distance between the both members 12, 14A, that is, the thickness of the ventilation layer 16 can be easily maintained at a predetermined dimension. For this reason, the ventilation performance of the ventilation layer 16 can be suitably ensured.

本発明は上記実施形態に限らず、例えば次のように実施されてもよい。   The present invention is not limited to the above embodiment, and may be implemented as follows, for example.

(1)上記実施形態では、差込部としての切刃部32を板状に形成したが、これを変更して、差込部を針状に形成してもよい。例えば図6(a)及び(b)に示すスペーサ部材50は、円柱状のスペーサ部51と、スペーサ部51から突出する針状のピン部52とを有している。ピン部52は、その先端部が先の尖った尖端部53となっており、その尖端部53を先端として壁内断熱材14Aに差し込まれるものとなっている。この場合にも、ピン部52を壁内断熱材14Aに差し込むだけでスペーサ部材50を壁内断熱材14Aに取り付けることが可能である。なお、図6のスペーサ部材50はピン部52を1つだけ有しているが、ピン部52を複数有する構成としてもよい。   (1) In the said embodiment, although the cutting blade part 32 as an insertion part was formed in plate shape, this may be changed and an insertion part may be formed in needle shape. For example, the spacer member 50 shown in FIGS. 6A and 6B has a columnar spacer portion 51 and a needle-like pin portion 52 protruding from the spacer portion 51. The pin portion 52 has a pointed tip 53 with a pointed tip, and the pin 52 is inserted into the in-wall heat insulating material 14A with the pointed portion 53 as a tip. Also in this case, the spacer member 50 can be attached to the in-wall heat insulating material 14A simply by inserting the pin portion 52 into the in-wall heat insulating material 14A. Although the spacer member 50 in FIG. 6 has only one pin portion 52, the spacer member 50 may have a plurality of pin portions 52.

また、図7(a)及び(b)に示すように、スペーサ部材60を長尺状に形成してもよい。同図に示すスペーサ部材60は、棒状(四角棒状)に形成されたスペーサ部61と、そのスペーサ部61の片面に当該スペーサ部61の長手方向に沿って複数設けられた切刃部62とを備える。かかるスペーサ部材60は、各切刃部62がそれぞれ壁内断熱材14Aに差し込まれることにより同断熱材14Aに取り付けられる。例えば、壁内断熱材14Aに対して上下方向又は左右方向に延びる向きで取り付けられる。この場合、上記実施形態のスペーサ部材30と比べて、壁内断熱材14Aに対するスペーサ部材60の取付個数を減らすことができるため、スペーサ部材60の取付作業を行うにあたり作業工数の低減を図ることが期待できる。   Further, as shown in FIGS. 7A and 7B, the spacer member 60 may be formed in a long shape. The spacer member 60 shown in the figure includes a spacer portion 61 formed in a rod shape (square rod shape) and a plurality of cutting blade portions 62 provided on one side of the spacer portion 61 along the longitudinal direction of the spacer portion 61. Prepare. The spacer member 60 is attached to the heat insulating material 14 </ b> A by inserting each cutting edge portion 62 into the in-wall heat insulating material 14 </ b> A. For example, it attaches with the direction extended in the up-down direction or the left-right direction with respect to 14 A of insulation materials in a wall. In this case, as compared with the spacer member 30 of the above embodiment, the number of spacer members 60 attached to the in-wall heat insulating material 14A can be reduced, so that the work man-hours can be reduced when the spacer member 60 is attached. I can expect.

(2)上記実施形態では、スペーサ部材30の筒状部31を円筒状に形成したが、筒状部を四角筒状や六角筒状等他の筒形状としてもよい。また、スペーサ部材30に固定板部45を設けないで、スペーサ部材30を筒状部31のみによって構成してもよい。この場合、スペーサ部材30が外壁面材12の裏面に固定されない状態で設けられることとなる。   (2) In the above-described embodiment, the cylindrical portion 31 of the spacer member 30 is formed in a cylindrical shape, but the cylindrical portion may have other cylindrical shapes such as a square cylindrical shape or a hexagonal cylindrical shape. Further, the spacer member 30 may be constituted by only the cylindrical portion 31 without providing the fixing plate portion 45 in the spacer member 30. In this case, the spacer member 30 is provided in a state where it is not fixed to the back surface of the outer wall surface material 12.

(3)スペーサ部材は必ずしも筒状部31を有して形成する必要はない。例えば図8(a−1)及び(a−2)に示すスペーサ部材70は、四角柱状のスペーサ部71と、そのスペーサ部71の一面71aから突出する複数(具体的には4つ)の切刃部72とを備える。これらの切刃部72には、各々の板面が互いに異なる方向を向く切刃部72aと切刃部72bとが含まれている。この場合にも、スペーサ部材70に対してこれら各方向のうちいずれかの方向への荷重が作用した場合には、スペーサ部材70の位置ずれを抑制することができる。   (3) The spacer member does not necessarily have to be formed having the cylindrical portion 31. For example, the spacer member 70 shown in FIGS. 8A-1 and 8A-2 includes a square columnar spacer portion 71 and a plurality of (specifically, four) cuts protruding from one surface 71a of the spacer portion 71. A blade portion 72. These cutting blade portions 72 include a cutting blade portion 72a and a cutting blade portion 72b whose plate surfaces face in different directions. Also in this case, when a load in any one of these directions is applied to the spacer member 70, the displacement of the spacer member 70 can be suppressed.

また、図8(b−1)及び(b−2)に示すスペーサ部材75も、これと同様に、複数の切刃部77の中に、各々の板面が互いに異なる方向を向く切刃部77aと切刃部77bとが含まれている。したがって、この場合にも、上記同様の効果を得ることができる。   Similarly, the spacer member 75 shown in FIGS. 8B-1 and 8B-2 also has a plurality of cutting blade portions 77 in which the respective blade surfaces face different directions. 77a and a cutting edge portion 77b are included. Therefore, also in this case, the same effect as described above can be obtained.

なお、各切刃部72,77の配置態様は必ずしも図8に示したものに限ることなく、各切刃部72,77をそれぞれ互いの板面が同じ向きとなるように配置する等、他の態様で配置してもよい。また、切刃部72,77の個数は任意としてよく、例えば切刃部72,77を1個だけ設けるようにしてもよい。   In addition, the arrangement | positioning aspect of each cutting-blade part 72 and 77 is not necessarily restricted to what was shown in FIG. 8, Other each arrangement | positioning so that each plate surface may become the same direction, etc. You may arrange | position in the aspect. Further, the number of the cutting blade portions 72 and 77 may be arbitrary. For example, only one cutting blade portion 72 and 77 may be provided.

(4)切刃部32の形態は必ずしも上記実施形態のものに限定されない。例えば、上記実施形態では、切刃部32の2つの端面部36,37のうち、第2端面部37を筒状部31の軸線方向に沿って延びるように形成したが、図9(a)に示すように、切刃部65において2つの端面部66,67をいずれも筒状部31の軸線方向に対して傾斜する方向に延びるように形成してもよい。この場合、切刃部65が壁内断熱材14Aに差し込まれた状態では、いずれの端面部66,67も壁内断熱材14Aの厚み方向に対して傾斜する方向に延びる向きで配置される。かかる場合でも、各端面部66,67により形成される尖端部68を先端として切刃部65を壁内断熱材14Aに差し込むことができる。   (4) The form of the cutting edge part 32 is not necessarily limited to the thing of the said embodiment. For example, in the said embodiment, although the 2nd end surface part 37 was formed so that it might extend along the axial direction of the cylindrical part 31 among the two end surface parts 36 and 37 of the cutting blade part 32, Fig.9 (a). As shown in FIG. 2, the two end surface portions 66 and 67 of the cutting edge portion 65 may be formed so as to extend in a direction inclined with respect to the axial direction of the cylindrical portion 31. In this case, in a state where the cutting blade portion 65 is inserted into the in-wall heat insulating material 14A, both end surface portions 66 and 67 are arranged in a direction extending in a direction inclined with respect to the thickness direction of the in-wall heat insulating material 14A. Even in such a case, the cutting edge portion 65 can be inserted into the in-wall heat insulating material 14A with the pointed portion 68 formed by the end surface portions 66 and 67 as the tip.

また、上記実施形態では、差込部の全体を切刃部32によって構成したが、これを変更して、図9(b)に示すように差込部85の一部だけを切刃部86としてもよい。この場合でも、切刃部86(詳しくはその尖端部87)を先端として差込部85を壁内断熱材14Aに差し込むことが可能である。   Moreover, in the said embodiment, although the whole insertion part was comprised by the cutting blade part 32, this is changed and only a part of insertion part 85 is shown in FIG.9 (b), and the cutting blade part 86 is shown. It is good. Even in this case, it is possible to insert the insertion portion 85 into the in-wall heat insulating material 14A with the cutting edge portion 86 (specifically, the sharp end portion 87) as a tip.

(5)上記実施形態では、切刃部32の厚みを筒状部31の軸線方向において尖端部35に向かうほど小さくなるようにしたが、これを変更して、切刃部32の厚みを軸線方向全域に亘って同じとしてもよい。この場合でも、切刃部32を、尖端部35を先端として壁内断熱材14Aに差し込むことが可能である。   (5) In the above-described embodiment, the thickness of the cutting blade portion 32 is reduced toward the tip portion 35 in the axial direction of the cylindrical portion 31, but this is changed to change the thickness of the cutting blade portion 32 to the axis line. It may be the same over the entire direction. Even in this case, the cutting edge portion 32 can be inserted into the in-wall heat insulating material 14A with the pointed end portion 35 as a tip.

(6)上記実施形態では、スペーサ部材30において当接面部39を筒状部31における各切刃部32の間の端面により構成したが、これを変更してもよい。例えば、図10(a)に示すスペーサ部材90は、筒状部31の内周側に当接面部が設けられている。具体的には、同スペーサ部材90には、筒状部31の内周面から径方向内側に向けて直線状に延び、かつ、周方向に所定間隔で複数(図10(a)では4つ)配置された直線部92と、それら各直線部92同士を互いに連結する環状の環状部93とが設けられている。各直線部92と環状部93とはそれぞれ筒状部31の軸線方向において一端側を向く面が前記軸線方向と直交する同一平面上に位置しており、切刃部32が壁内断熱材14Aに差し込まれた場合に同断熱材14Aの通気層16側の面に当接される当接面部92a,93aとなっている。この場合、これらの当接面部92a,93aが壁内断熱材14Aの通気層16側の面に当接されることにより、切刃部32がそれ以上壁内断熱材14Aに深く差し込まれることが規制されるようになっている。   (6) In the above-described embodiment, the contact surface portion 39 of the spacer member 30 is configured by the end surface between the cutting blade portions 32 in the cylindrical portion 31, but this may be changed. For example, the spacer member 90 shown in FIG. 10A is provided with a contact surface portion on the inner peripheral side of the cylindrical portion 31. Specifically, the spacer member 90 includes a plurality of (four in FIG. 10A) that extend linearly from the inner peripheral surface of the cylindrical portion 31 toward the inner side in the radial direction and at predetermined intervals in the circumferential direction. ) Arranged linear portions 92 and annular annular portions 93 that connect the linear portions 92 to each other are provided. Each of the straight portions 92 and the annular portion 93 has a surface facing one end in the axial direction of the cylindrical portion 31 located on the same plane orthogonal to the axial direction, and the cutting edge portion 32 has an in-wall heat insulating material 14A. The contact surface portions 92a and 93a are in contact with the surface of the heat insulating material 14A on the side of the ventilation layer 16 when inserted. In this case, these abutting surface portions 92a and 93a are brought into contact with the surface of the in-wall heat insulating material 14A on the side of the ventilation layer 16, so that the cutting edge portion 32 is further inserted deeply into the in-wall heat insulating material 14A. Being regulated.

また、これらの当接面部92a,93aは、筒状部31の当接面部39と同一平面上に位置している。したがって、当接面部92a,93aと当接面部39との双方がそれぞれ壁内断熱材14Aの通気層16側の面に当接されるようになっている。この場合、切刃部32が壁内断熱材14Aに深く差し込まれるのをより確実に規制することが可能となる。   The contact surface portions 92 a and 93 a are located on the same plane as the contact surface portion 39 of the cylindrical portion 31. Therefore, both the contact surface portions 92a and 93a and the contact surface portion 39 are in contact with the surface of the in-wall heat insulating material 14A on the side of the ventilation layer 16 respectively. In this case, it is possible to more reliably regulate the cutting edge portion 32 being inserted deep into the in-wall heat insulating material 14A.

図10(b)に示すスペース部材95は、筒状部96の外周側に当接面部が設けられている。具体的には、同スペーサ部材95では、筒状部96から径方向外側に向けて突出する複数の突出部97が筒状部96の周方向に所定の間隔で設けられている。各突出部97において筒状部96の軸線方向における一端側(換言すると切刃部98の側)を向く面はいずれも筒状部96の軸線方向と直交する同一平面上に位置しており、筒状部96(詳しくはその差込部99)が壁内断熱材14Aに差し込まれた場合に同断熱材14Aの通気層16側の面に当接される当接面部97aとなっている。この場合、この当接面部97aが壁内断熱材14Aの通気層16側の面に当接されることにより、筒状部96がそれ以上壁内断熱材14Aに深く差し込まれることが規制される。   The space member 95 shown in FIG. 10B is provided with a contact surface portion on the outer peripheral side of the cylindrical portion 96. Specifically, in the spacer member 95, a plurality of projecting portions 97 projecting radially outward from the tubular portion 96 are provided at predetermined intervals in the circumferential direction of the tubular portion 96. Each of the protrusions 97 has a surface facing one end side in the axial direction of the cylindrical portion 96 (in other words, the side of the cutting edge portion 98), which is located on the same plane orthogonal to the axial direction of the cylindrical portion 96. When the cylindrical portion 96 (specifically, the insertion portion 99) is inserted into the in-wall heat insulating material 14A, it is a contact surface portion 97a that contacts the surface of the heat insulating material 14A on the side of the ventilation layer 16. In this case, this abutting surface portion 97a is abutted against the surface of the in-wall heat insulating material 14A on the side of the ventilation layer 16, thereby restricting the tubular portion 96 from being further inserted into the in-wall heat insulating material 14A. .

また、本例のスペーサ部材95では、筒状部96において突出部97の当接面部97aよりも一端側(切刃部98の側)が差込部99となっている。そして、この差込部99における一端側に複数の切刃部98が差込部99(筒状部96)の周方向に沿って連続して形成されている。つまり、本例の差込部99は、その一部に複数の切刃部98を有するものとなっている。   Further, in the spacer member 95 of this example, one end side (the cutting edge portion 98 side) of the cylindrical portion 96 with respect to the contact surface portion 97a of the protruding portion 97 is the insertion portion 99. A plurality of cutting edge portions 98 are continuously formed on one end side of the insertion portion 99 along the circumferential direction of the insertion portion 99 (tubular portion 96). That is, the insertion part 99 of this example has the some cutting blade part 98 in the part.

また、筒状部96において軸線方向における差込部99よりも他端側(すなわち切刃部98とは反対側)は通気層16に配設されるスペーサ部100となっている。このスペーサ部100の外周面には、複数(具体的には4つ)の指入れ部101が周方向に所定の間隔で設けられている。指入れ部101は、内部に指を差し入れるための凹部となっており、差込部99を壁内断熱材14Aに差し込む際にはこの指入れ部101に指を差し入れた状態でスペーサ部100を把持することができる。この場合、差込部99を壁内断熱材14Aに差し込む際に指を滑らすといった不都合が生じにくく、差込部99の壁内断熱材14Aへの差し込みをし易くすることができる。   Further, in the cylindrical portion 96, the other end side (that is, the side opposite to the cutting edge portion 98) from the insertion portion 99 in the axial direction is a spacer portion 100 disposed in the ventilation layer 16. A plurality (specifically, four) of finger inserts 101 are provided on the outer peripheral surface of the spacer unit 100 at predetermined intervals in the circumferential direction. The finger insertion portion 101 is a recess for inserting a finger therein, and when inserting the insertion portion 99 into the in-wall heat insulating material 14A, the spacer portion 100 is inserted with the finger inserted into the finger insertion portion 101. Can be gripped. In this case, it is difficult to cause inconvenience such as sliding a finger when inserting the insertion portion 99 into the in-wall heat insulating material 14A, and the insertion portion 99 can be easily inserted into the in-wall heat insulating material 14A.

なお、スペーサ部材30に当接面部を設けない構成としてもよい。例えば、スペーサ部材30の筒状部31において各切刃部32を周方向に沿って連続形成することで当接面部39を設けないようにすることが考えられる。この場合にも、各切刃部32を壁内断熱材14Aに差し込む際、差込量の調整をしながら差し込めば各切刃部32を壁内断熱材14Aに所定分差し込むことができる。   The spacer member 30 may not be provided with the contact surface portion. For example, it is conceivable that the contact surface portion 39 is not provided by continuously forming the respective cutting blade portions 32 along the circumferential direction in the cylindrical portion 31 of the spacer member 30. Also in this case, when each cutting blade part 32 is inserted into the in-wall heat insulating material 14A, each cutting blade part 32 can be inserted into the in-wall heat insulating material 14A by a predetermined amount by adjusting the amount of insertion.

(7)上記実施形態では、外壁面材12と壁内断熱材14Aとの間にスペーサ部材30を用いて通気層16を形成したが、内壁面材13と壁内断熱材14Aとの間にスペーサ部材30を用いて通気層を形成してもよい。   (7) In the above embodiment, the ventilation layer 16 is formed using the spacer member 30 between the outer wall surface material 12 and the in-wall heat insulating material 14A, but between the inner wall surface material 13 and the in-wall heat insulating material 14A. The ventilation layer may be formed using the spacer member 30.

10…建物、11…外壁部、12…壁面材としての外壁面材、14…断熱材としての壁内断熱材、16…通気層、30…スペーサ部材、31…筒状部、32…差込部としての切刃部、35…尖端部、36…第1端面部、37…第2端面部、39…当接面部、46…接着面部。   DESCRIPTION OF SYMBOLS 10 ... Building, 11 ... Outer wall part, 12 ... Outer wall surface material as wall material, 14 ... Insulation material in the wall as heat insulating material, 16 ... Ventilation layer, 30 ... Spacer member, 31 ... Cylindrical part, 32 ... Insertion Cutting edge portion as a portion, 35 ... sharp end portion, 36 ... first end face portion, 37 ... second end face portion, 39 ... abutting face portion, 46 ... adhesive face portion.

Claims (12)

壁面材と、その壁面材の裏面側に設けられる板状の断熱材とを備え、前記壁面材と前記断熱材との間には通気層が形成されている建物の壁通気構造において、
前記壁面材と前記断熱材との間に一部を配設することにより前記通気層を形成するスペーサ部材を備え、
前記スペーサ部材は、先の尖った尖端部を先端として前記通気層側から前記断熱材に差し込まれる差込部を備え、その差込部が前記断熱材に差し込まれることで当該断熱材に取り付けられていることを特徴とする建物の壁通気構造。
In the wall ventilation structure of a building comprising a wall material and a plate-like heat insulating material provided on the back side of the wall material, and a ventilation layer is formed between the wall material and the heat insulating material,
A spacer member that forms the ventilation layer by disposing a part between the wall surface material and the heat insulating material;
The spacer member includes an insertion part that is inserted into the heat insulating material from the ventilation layer side with a sharp pointed end as a tip, and the insertion part is attached to the heat insulating material by being inserted into the heat insulating material. The building's wall ventilation structure is characterized by
前記差込部は、前記断熱材に差し込まれた状態において当該断熱材の厚み方向に延びる板状をなしているとともに、2つの端面部が頂部をなす山形状の切刃部を有しており、その頂部が前記尖端部となっていることを特徴とする請求項1に記載の建物の壁通気構造。   The insertion portion has a plate shape extending in the thickness direction of the heat insulating material in a state of being inserted into the heat insulating material, and has a mountain-shaped cutting blade portion with two end surface portions forming the top. 2. The building wall ventilation structure according to claim 1, wherein a top portion thereof is the pointed portion. 前記差込部は、その板厚が前記断熱材の厚み方向において前記尖端部に向かうにつれて小さくなっていることを特徴とする請求項2に記載の建物の壁通気構造。   3. The building wall ventilation structure according to claim 2, wherein the insertion portion has a plate thickness that decreases with increasing thickness toward the tip in the thickness direction of the heat insulating material. 前記スペーサ部材は、前記差込部を複数備えており、
それら各差込部は互いの板面を異なる方向に向けて配置されていることを特徴とする請求項2又は3に記載の建物の壁通気構造。
The spacer member includes a plurality of the insertion portions,
4. The building wall ventilation structure according to claim 2, wherein each of the insertion portions is disposed with the plate surfaces facing in different directions. 5.
前記各差込部の切刃部はそれぞれ前記端面部として、前記断熱材の厚み方向に対して斜め方向に延びる第1端面部と、前記厚み方向に延びる第2端面部とを有しており、
前記各差込部のうちいずれかが、前記第2端面部を下側に向けた状態で前記断熱材に差し込まれていることを特徴とする請求項4に記載の建物の壁通気構造。
Each cutting edge portion of each insertion portion has, as the end surface portion, a first end surface portion extending in an oblique direction with respect to the thickness direction of the heat insulating material and a second end surface portion extending in the thickness direction. ,
5. The building wall ventilation structure according to claim 4, wherein any one of the insertion portions is inserted into the heat insulating material with the second end face portion facing downward.
前記複数の差込部は、それぞれ前記断熱材に差し込まれた状態で、当該断熱材の厚み方向に延びる中心軸を中心とした同一円状に等間隔で並べられ、かつ、各々の切刃部が当該同一円の円周方向に沿って同じ向きとなるように配置されていることを特徴とする請求項5に記載の建物の壁通気構造。   The plurality of insertion portions are arranged at equal intervals around the central axis extending in the thickness direction of the heat insulating material in the state of being inserted into the heat insulating material, respectively, and each cutting blade portion The wall ventilation structure for a building according to claim 5, wherein the two are arranged in the same direction along the circumferential direction of the same circle. 前記スペーサ部材は、前記差込部が前記断熱材に差し込まれた状態において前記断熱材の前記通気層側の面に当接される当接面部を有しており、その当接面部が前記断熱材の前記通気層側の面に当接されることで前記差込部が前記断熱材にそれ以上深く差し込まれることが規制されていることを特徴とする請求項1乃至6のいずれか一項に記載の建物の壁通気構造。   The spacer member has a contact surface portion that contacts the surface of the heat insulating material on the air-permeable layer side in a state where the insertion portion is inserted into the heat insulating material, and the contact surface portion is the heat insulating material. 7. It is controlled that the insertion part is inserted deeper into the heat insulating material by being in contact with the surface on the air-permeable layer side of the material. Building wall ventilation structure as described in. 前記スペーサ部材は、筒状をなすとともにその軸線を前記断熱材の厚み方向に向けて配設された筒状部を備え、
前記筒状部は、その一部が前記断熱材に差し込まれて前記差込部となっており、
前記差込部は、前記筒状部の周方向に沿って所定の間隔で複数形成されており、
前記筒状部において隣り合う前記差込部の間の端面が前記断熱材の前記通気層側の面に当接されて前記当接面部となっていることを特徴とする請求項7に記載の建物の壁通気構造。
The spacer member includes a cylindrical portion that is cylindrical and disposed with its axis lined in the thickness direction of the heat insulating material.
A part of the cylindrical part is inserted into the heat insulating material to form the insertion part,
A plurality of the insertion portions are formed at predetermined intervals along the circumferential direction of the cylindrical portion,
The end surface between the said insertion part adjacent in the said cylindrical part is contact | abutted by the surface by the side of the said ventilation layer of the said heat insulating material, and becomes the said contact surface part. Building wall ventilation structure.
前記スペーサ部材において前記通気層に配設されたスペーサ部には、その外周面に凹凸部が設けられていることを特徴とする請求項1乃至8のいずれか一項に記載の建物の壁通気構造。   The wall ventilation of the building according to any one of claims 1 to 8, wherein an uneven portion is provided on an outer peripheral surface of the spacer portion disposed in the ventilation layer in the spacer member. Construction. 前記スペーサ部材は、前記壁面材の裏面に接着固定された接着面部を有していることを特徴とする請求項1乃至9のいずれか一項に記載の建物の壁通気構造。   The wall ventilation structure for a building according to any one of claims 1 to 9, wherein the spacer member has an adhesive surface portion that is adhesively fixed to the back surface of the wall surface material. 壁面材と、その裏面側に設けられる断熱材との間に通気層を形成するためのスペーサ部材であって、
前記通気層に配設されるスペーサ部と、
前記スペーサ部から板状に延びるとともに2つの端面部が頂部をなす山形状の切刃部を有し、該頂部を先端として前記通気層側から前記断熱材に差し込まれることで当該断熱材の厚み方向に延びる向きで設けられる差込部と、
を備え、
前記差込部が前記断熱材に差し込まれることで当該断熱材に取り付けられるものであり、
前記切刃部は、前記差込部が前記断熱材に差し込まれた状態で、前記断熱材の厚み方向に対して斜め方向に延びる第1端面部と、前記厚み方向に延びる第2端面部とをそれぞれ前記端面部として有しており、
前記差込部は複数設けられており、
それら各差込部は、それぞれ前記断熱材に差し込まれた状態で、当該断熱材の厚み方向に延びる中心軸を中心とした同一円状に等間隔で並ぶように、かつ、各々の切刃部が当該同一円の円周方向に沿って同じ向きとなるように配置されていることを特徴とするスペーサ部材。
A spacer member for forming a ventilation layer between a wall surface material and a heat insulating material provided on the back surface side thereof,
A spacer portion disposed in the ventilation layer;
A thickness of the heat insulating material by extending in a plate shape from the spacer portion and having a mountain-shaped cutting blade portion with two end surfaces forming a top, and being inserted into the heat insulating material from the ventilation layer side with the top as a tip. An insertion portion provided in a direction extending in the direction;
With
The insertion part is attached to the heat insulating material by being inserted into the heat insulating material,
The cutting edge portion includes a first end surface portion extending in an oblique direction with respect to a thickness direction of the heat insulating material, and a second end surface portion extending in the thickness direction, with the insertion portion being inserted into the heat insulating material. Each as the end face part,
A plurality of the insertion portions are provided,
Each insertion portion is inserted into the heat insulating material, and is arranged at equal intervals around the central axis extending in the thickness direction of the heat insulating material at equal intervals, and each cutting blade portion Are arranged in the same direction along the circumferential direction of the same circle.
筒状をなすとともにその軸線を前記断熱材の厚み方向に向けて配設される筒状部を備え、
前記筒状部は、その一部が前記断熱材に差し込まれる前記複数の差込部となっており、
それら各差込部は、前記筒状部の周方向に沿って等間隔で配置されており、
前記筒状部において隣り合う前記差込部の間の端面が、前記差込部が前記断熱材に差し込まれた状態において当該断熱材の前記通気層側の面に当接される当接面部となっており、
その当接面部が前記断熱材の前記通気層側の面に当接されることで、前記差込部が前記断熱材にそれ以上深く差し込まれることが規制されることを特徴とする請求項11に記載のスペーサ部材。
A cylindrical portion is provided that has a cylindrical shape and is arranged with its axis lined in the thickness direction of the heat insulating material,
The cylindrical portion is the plurality of insertion portions, a part of which is inserted into the heat insulating material,
Each of these insertion parts is arranged at equal intervals along the circumferential direction of the cylindrical part,
An end surface between the adjacent insertion portions in the tubular portion is a contact surface portion that is in contact with the surface of the heat insulating material on the air-permeable layer side in a state where the insertion portion is inserted into the heat insulating material. And
The contact surface portion is in contact with the surface of the heat insulating material on the side of the ventilation layer, so that the insertion portion is restricted from being inserted deeper into the heat insulating material. The spacer member described in 1.
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CN106930418A (en) * 2017-03-02 2017-07-07 天津二建建筑工程有限公司 Improve the construction and construction method of the concrete dry wall metope accumulation of salt in the surface soil using breather pipe
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JP2018076747A (en) * 2016-11-11 2018-05-17 トヨタホーム株式会社 Insulation structure of bearing wall and mounting method for heat insulation material of bearing wall
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CN106930418B (en) * 2017-03-02 2018-12-25 天津二建建筑工程有限公司 Improve the construction and construction method of the concrete dry wall metope accumulation of salt in the surface soil using snorkel

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