JP6008283B2 - Thermal insulation building material - Google Patents

Thermal insulation building material Download PDF

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Publication number
JP6008283B2
JP6008283B2 JP2012201193A JP2012201193A JP6008283B2 JP 6008283 B2 JP6008283 B2 JP 6008283B2 JP 2012201193 A JP2012201193 A JP 2012201193A JP 2012201193 A JP2012201193 A JP 2012201193A JP 6008283 B2 JP6008283 B2 JP 6008283B2
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plate portion
internal space
reinforcing rib
back plate
frame portion
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JP2014055459A (en
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久義 野木
久義 野木
岡田　直樹
直樹 岡田
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/242—Slab shaped vacuum insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/10—Insulation, e.g. vacuum or aerogel insulation

Description

本発明は、断熱建材に関するものである。   The present invention relates to a heat insulating building material.

従来から、フレーム部に表面板部と裏面板部とが設けられ、その内部空間に断熱材が装填された断熱建材が知られている（例えば特許文献１参照）。   2. Description of the Related Art Conventionally, a heat insulating building material is known in which a front surface plate portion and a back surface plate portion are provided in a frame portion, and a heat insulating material is loaded in the internal space (see, for example, Patent Document 1).

特開平９−３２１４２号公報JP-A-9-32142

断熱材として、グラスウールや発泡体が用いられている。グラスウールや発泡体は断熱素材としてある程度の断熱性能が得られるものの、グラスウールや発泡体による熱伝導を抑えることができず、断熱性能を十分に向上させることができないものであった。   Glass wool or foam is used as a heat insulating material. Although glass wool and foam can obtain a certain degree of heat insulating performance as a heat insulating material, heat conduction by glass wool and foam cannot be suppressed, and the heat insulating performance cannot be sufficiently improved.

本発明は上記従来の問題点に鑑みて発明したものであって、その目的とするところは、熱が伝わり難い構造を持った断熱建材を提供することを課題とするものである。   The present invention has been invented in view of the above-described conventional problems, and an object of the present invention is to provide a heat insulating building material having a structure in which heat is not easily transmitted.

上記課題を解決するために、本発明は、以下のような構成とする。   In order to solve the above problems, the present invention has the following configuration.

断熱建材は、内部に表裏方向に貫通する孔を有する環状をしたフレーム部と、前記フレーム部の表側の面に設けられる表面板部と、前記フレーム部の裏側の面に設けられる裏面板部と、前記フレーム部と前記表面板部と前記裏面板部とで密閉される内部空間と、前記内部空間の前記表面板部と前記裏面板部との間に介在する合成樹脂により形成された補強リブと、前記フレーム部又は前記裏面板部に形成され前記内部空間に連通する吸気孔と、前記吸気孔を閉塞する栓と、を備え、前記吸気孔を介して前記内部空間が減圧されて真空又は減圧状態が保持可能であり、前記補強リブにより前記内部空間が複数の房に仕切られ、前記補強リブにこの補強リブにより仕切られる両側の前記房を連通する連通口が形成され、前記フレーム部と、前記補強リブと、前記表面板部と前記裏面板部のうちの第一の面板部と、が合成樹脂により一体に形成され、前記補強リブの前記表面板部と前記裏面板部のうちの第二の面板部側の端縁に、前記連通口となる切欠が形成されることを特徴とする。 The heat insulating building material has an annular frame portion having a hole penetrating in the front and back directions therein, a front plate portion provided on the front side surface of the frame portion, and a back plate portion provided on the back side surface of the frame portion, An internal space sealed by the frame portion, the front surface plate portion, and the back surface plate portion, and a reinforcing rib formed by a synthetic resin interposed between the front surface plate portion and the back surface plate portion of the internal space And an intake hole formed in the frame part or the back plate part and communicating with the internal space, and a plug for closing the intake hole, and the internal space is depressurized through the intake hole to be vacuum or Ri der can hold a reduced pressure state, the interior space by the reinforcing rib is partitioned into a plurality of tufts, communication port communicating the tufts on both sides which are separated by the reinforcing rib in the reinforcing ribs are formed, the frame portion And the above The rib, the first face plate portion of the front plate portion and the back plate portion are integrally formed of a synthetic resin, and the second of the front plate portion and the back plate portion of the reinforcing rib. the edge of the face plate side, notches serving as the communication opening is formed, characterized in Rukoto.

また、前記吸気孔に、前記栓として、外側の圧力が内側の圧力よりも所定値以上小さくなると開いて気体を流出可能とする逆止弁が設けられることが好ましい。   In addition, it is preferable that a check valve is provided in the intake hole as the plug so as to open and allow gas to flow out when the outer pressure becomes smaller than the inner pressure by a predetermined value or more.

本発明の断熱建材は、断熱性を向上させることができる。   The heat insulation building material of this invention can improve heat insulation.

本発明の第一実施形態の断熱建材の分解斜視図である。It is a disassembled perspective view of the heat insulation building material of 1st embodiment of this invention. （ａ）は、フレーム部と裏面板部とを接合した斜視図であり、（ｂ）は、フレーム部と表面板部と裏面板部とを接合した斜視図である。(A) is the perspective view which joined the frame part and the backplate part, (b) is the perspective view which joined the frame part, the surface board part, and the backplate part. 本発明の第一実施形態の断熱建材を家屋に取付けたときの断面図である。It is sectional drawing when the heat insulation building material of 1st embodiment of this invention is attached to the house. 本発明の第一実施形態の断熱建材に栓が取付けられている断面図である。It is sectional drawing with which the stopper is attached to the heat insulation building material of 1st embodiment of this invention. （ａ）は、内部空間から空気を抜いているときの栓の状態を示した断面図であり、（ｂ）は、内部空間から空気を抜き出し、密閉蓋を取り付けた状態の栓を示した断面図である。(A) is sectional drawing which showed the state of the stopper when air is extracted from internal space, (b) is the cross section which showed the stopper of the state which extracted air from internal space and attached the sealing lid FIG. 本発明の第二実施形態で裏面板部とフレーム部が一体に形成されたときの斜視図である。It is a perspective view when a back plate part and a frame part are formed in one in the second embodiment of the present invention.

以下、本発明の第一実施形態について図１乃至図５に基いて説明する。   Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

断熱建材１は、フレーム部１１と、表面板部１２と、裏面板部１３と、を備えている。   The heat insulating building material 1 includes a frame portion 11, a front surface plate portion 12, and a back surface plate portion 13.

フレーム部１１は、内部に表裏方向に貫通する孔を有する環状をしている。そして、フレーム部１１は所定の厚み（高さ）を有している。本実施形態では、正面視略矩形状の環状をしたものである。また、フレーム部１１の内部空間１４には、補強リブ１５が設けられて、内部空間１４が複数の房１６に分割されている。   The frame part 11 has an annular shape having a hole penetrating in the front and back direction. The frame portion 11 has a predetermined thickness (height). In the present embodiment, it has a substantially rectangular ring shape when viewed from the front. In addition, reinforcing ribs 15 are provided in the internal space 14 of the frame portion 11, and the internal space 14 is divided into a plurality of tufts 16.

表面板部１２は、フレーム部１１の表側の面に取付けられる。本実施形態では、表面板部１２の外郭は平面視でフレーム部１１の外郭と略同形状となっているが、形状は限定されない。   The surface plate portion 12 is attached to the front side surface of the frame portion 11. In the present embodiment, the outline of the surface plate portion 12 has substantially the same shape as the outline of the frame portion 11 in plan view, but the shape is not limited.

裏面板部１３は、フレーム部１１の裏側の面に取付けられる。裏面板部１３の外郭は、本実施形態では、フレーム部１１の外郭よりも大きく形成される。このため、裏面板部１３はフレーム部１１からはみ出るフランジ部１３ａを裏面板部１３の全周に有している。フランジ部１３ａは、図３のように断熱建材１を家屋に取付ける際に釘又はビスを打ち付けて家屋に固定する部分となる。本実施形態では、フランジ部１３ａが設けられているが、フランジ部１３ａが設けられていなくてもよく、特に限定されない。裏面板部１３の形状は、本実施形態では矩形となっているが、形状は限定されない。   The back plate 13 is attached to the back surface of the frame 11. In this embodiment, the outline of the back surface plate portion 13 is formed larger than the outline of the frame portion 11. For this reason, the back surface plate portion 13 has a flange portion 13 a protruding from the frame portion 11 on the entire circumference of the back surface plate portion 13. The flange portion 13a is a portion that is fixed to the house by hitting a nail or a screw when the heat insulating building material 1 is attached to the house as shown in FIG. In the present embodiment, the flange portion 13a is provided, but the flange portion 13a may not be provided and is not particularly limited. The shape of the back plate 13 is a rectangle in the present embodiment, but the shape is not limited.

フレーム部１１と表面板部１２と裏面板部１３の材質は限定されないが、本実施形態では合成樹脂で形成される。   Although the material of the frame part 11, the surface board part 12, and the back surface board part 13 is not limited, in this embodiment, it forms with a synthetic resin.

フレーム部１１と表面板部１２と裏面板部１３とを、溶着又は接着剤等で接合すると、内部に密閉された空間である内部空間１４が形成される。   When the frame part 11, the front plate part 12, and the back plate part 13 are joined together by welding or an adhesive, an internal space 14 that is a space sealed inside is formed.

内部空間１４を減圧させるために、空気を抜く吸気孔１７がフレーム部１１の側面あるいは裏面板部１３に形成される。吸気孔１７は、いずれかの房１６に連通する。吸気孔１７が連通し、直接真空ポンプ等により空気を抜く房１６の数は一つとは限らず、複数であってもよい。本実施形態では、図１、図２（ａ）、（ｂ）に示すように、吸気孔１７はフレーム部１１の側面に設けられ、一つの吸気孔１７で空気を抜いている。吸気孔１７には、栓２が取付けられる。   In order to depressurize the internal space 14, an air intake hole 17 through which air is extracted is formed in the side surface of the frame portion 11 or the back plate portion 13. The intake hole 17 communicates with one of the tufts 16. The number of tufts 16 through which the suction holes 17 communicate and from which air is directly drawn by a vacuum pump or the like is not limited to one, and may be plural. In the present embodiment, as shown in FIGS. 1, 2 (a), and 2 (b), the intake hole 17 is provided on the side surface of the frame portion 11, and air is extracted through one intake hole 17. The plug 2 is attached to the intake hole 17.

本実施形態では栓２は逆止弁２１を有しており、逆止弁２１は外側の圧力（通常は大気圧）が内側の圧力（内部空間１４の圧力）よりも、所定値以上小さくなると開いて気体が流出可能となるものである。栓２は、図５（ａ）、（ｂ）に示すように、内部空間１４に差し込む挿入管２２、挿入管２２と連通する逆止弁２１、逆止弁２１の内部に一部分が挿入されスリット２３ａを有する流出管２３と、を備えている。   In the present embodiment, the stopper 2 has a check valve 21, and the check valve 21 has an outer pressure (usually atmospheric pressure) that is smaller than an inner pressure (pressure in the internal space 14) by a predetermined value or more. It opens and gas can flow out. As shown in FIGS. 5A and 5B, the stopper 2 has an insertion pipe 22 inserted into the internal space 14, a check valve 21 communicating with the insertion pipe 22, and a slit inserted into a part of the check valve 21. And an outflow pipe 23 having 23a.

逆止弁２１は、内部空間１４を真空にした後、内部空間１４に空気が入り難くするために設けられている。本実施形態では、逆止弁２１は、ボール２１ａと、流出管２３の外周に取付けられる付勢手段２１ｂと、を備えているが、逆止弁２１の構成は限定されない。   The check valve 21 is provided to make it difficult for air to enter the internal space 14 after the internal space 14 is evacuated. In the present embodiment, the check valve 21 includes a ball 21a and an urging means 21b attached to the outer periphery of the outflow pipe 23. However, the configuration of the check valve 21 is not limited.

本実施形態の栓２について説明する。通常の状態で栓２は、図５（ｂ）のようにボール２１ａが付勢手段２１ｂにより挿入管２２を塞いでいるので、内部空間１４は閉塞されている。作業者が、流出管２３に真空ポンプを取付けて作動させると、真空ポンプの吸引力により挿入管２２からボール２１ａが外れ、ボール２１ａが図５（ａ）に示すように流出管２３の内部空間１４側の先端に当接する。そして、挿入管２２から吸出される内部空間１４の空気が、流出管２３のスリット２３ａから真空ポンプへと抜けていく。そして、内部空間１４が減圧され、内部空間１４が真空又は真空に近い状態になる。そして、作業者が真空ポンプを止めると、付勢手段２１ｂによりボール２１ａが押され、自動的に挿入管２２はボール２１ａにより閉塞される。さらに空気が内部空間１４に入り難くするために、流出管２３の真空ポンプと連通する流出口２３ｂが図５（ｂ）に示すようにパッキン２４と密閉蓋２５で螺合される。以上のような操作で、内部空間１４を減圧し、真空又は真空に近い状態を保持するために栓２は用いられる。栓２が用いられることにより、作業者は減圧する作業がし易くなる。更に作業者は、吸気孔１７に取付けられた栓２を繰り返し使用することができる。   The stopper 2 of this embodiment is demonstrated. In the normal state, the internal space 14 of the stopper 2 is closed because the ball 21a closes the insertion tube 22 by the biasing means 21b as shown in FIG. 5 (b). When an operator attaches and operates the vacuum pump to the outflow pipe 23, the ball 21a is detached from the insertion pipe 22 by the suction force of the vacuum pump, and the ball 21a is in the inner space of the outflow pipe 23 as shown in FIG. It abuts on the tip on the 14 side. Then, the air in the internal space 14 sucked out from the insertion tube 22 passes through the slit 23a of the outflow tube 23 to the vacuum pump. And the internal space 14 is pressure-reduced and the internal space 14 will be in the state of a vacuum or a near vacuum. When the worker stops the vacuum pump, the ball 21a is pushed by the biasing means 21b, and the insertion tube 22 is automatically closed by the ball 21a. Further, in order to make it difficult for air to enter the internal space 14, the outflow port 23b communicating with the vacuum pump of the outflow pipe 23 is screwed with the packing 24 and the sealing lid 25 as shown in FIG. The plug 2 is used to reduce the pressure in the internal space 14 and maintain a vacuum or a state close to a vacuum by the above operation. By using the stopper 2, the operator can easily perform the operation of reducing the pressure. Further, the operator can repeatedly use the plug 2 attached to the intake hole 17.

内部空間１４は、断熱建材１の断熱の機能を持つ。内部空間１４の空気を抜くと、内部空間１４の圧力が減圧し、内部空間１４が真空に近い状態になる。すると、内部空間１４の空気が減少するので、熱伝導率が低くなる。しかし、内部空間１４の圧力が減圧されると、大気圧により内部空間１４を覆う表面板部１２と裏面板部１３が変形し、断熱建材１が破損してしまう。そこで、内部空間１４には、内部空間１４の表面板部１２と裏面板部１３との間に介在する補強リブ１５が設けられている。   The internal space 14 has a heat insulating function for the heat insulating building material 1. When the air in the internal space 14 is evacuated, the pressure in the internal space 14 is reduced, and the internal space 14 becomes close to a vacuum. Then, since the air in the internal space 14 is reduced, the thermal conductivity is lowered. However, when the pressure in the internal space 14 is reduced, the front plate 12 and the back plate 13 that cover the internal space 14 are deformed by atmospheric pressure, and the heat insulating building material 1 is damaged. Therefore, the internal space 14 is provided with reinforcing ribs 15 interposed between the front surface plate portion 12 and the back surface plate portion 13 of the internal space 14.

補強リブ１５は、上述したように、内部空間１４を真空にした際、大気圧により断熱建材１が破損しないようにするために設けられる。本実施形態では、補強リブ１５の形状は格子状となっているが、形状は特に限定されない。しかし、補強リブ１５は、フレーム部１１の厚みと補強リブ１５の高さが略等しくなり、表面板部１２と裏面板部１３を支持する必要がある。フレーム部１１の厚みと略等しい補強リブ１５が設けられることにより、内部空間１４は複数の房１６に仕切られる。   As described above, the reinforcing rib 15 is provided to prevent the heat insulating building material 1 from being damaged by the atmospheric pressure when the internal space 14 is evacuated. In the present embodiment, the shape of the reinforcing rib 15 is a lattice shape, but the shape is not particularly limited. However, the reinforcing rib 15 needs to support the front surface plate portion 12 and the back surface plate portion 13 because the thickness of the frame portion 11 and the height of the reinforcing rib 15 are substantially equal. By providing the reinforcing rib 15 that is substantially equal to the thickness of the frame portion 11, the internal space 14 is partitioned into a plurality of tufts 16.

房１６は、補強リブ１５の内部空間１４の仕切り方により、房１６の形状は変化するので、房１６の形状は特に限定されない。補強リブ１５により仕切られた内部空間１４から空気を抜くためには、各房１６に吸気孔１７が必要となる。しかし、各房１６に連通する連通口１５ａが外郭に設けられ、各房１６の連通口１５ａを通って空気が吸気孔１７に達するようにすると、吸気孔１７の数は少なくすることができる。従って、本実施形態では、全ての房１６の補強リブ１５に連通口１５ａが設けられているので、直接又は連通する房１６を介して吸気孔１７に連通している。   Since the shape of the tuft 16 varies depending on how the internal space 14 of the reinforcing rib 15 is partitioned, the shape of the tuft 16 is not particularly limited. In order to evacuate air from the internal space 14 partitioned by the reinforcing ribs 15, an intake hole 17 is required for each tuft 16. However, if the communication port 15a communicating with each chamber 16 is provided in the outer shell and the air reaches the intake holes 17 through the communication port 15a of each chamber 16, the number of the intake holes 17 can be reduced. Therefore, in this embodiment, since the communication port 15a is provided in the reinforcement rib 15 of all the tufts 16, it communicates with the intake hole 17 directly or through the tufts 16 that communicate with each other.

補強リブ１５は、合成樹脂で形成されるが、特にフレーム部１１と同時成形して一体に形成されることが好ましい。   The reinforcing ribs 15 are made of synthetic resin, but are preferably formed integrally with the frame portion 11 in particular.

本実施形態では、図１に示すように連通口１５ａは、補強リブ１５の表面板部１２側に設けられているが、裏面板部１３側に設けられてもよく、設けられる場所は特に限定されない。また、連通口１５ａは、補強リブ１５の長さを短くし、フレーム部１１との間に隙間を設け、その隙間を連通口１５ａとしてもよい。   In this embodiment, as shown in FIG. 1, the communication port 15a is provided on the surface plate portion 12 side of the reinforcing rib 15, but may be provided on the back plate portion 13 side, and the place where it is provided is particularly limited. Not. In addition, the communication port 15a may be configured such that the length of the reinforcing rib 15 is shortened and a gap is provided between the communication port 15a and the frame portion 11, and the gap is used as the communication port 15a.

上記のような構成の断熱建材１を用いることにより、断熱建材１の断熱性を向上させることができる。   By using the heat insulating building material 1 having the above configuration, the heat insulating property of the heat insulating building material 1 can be improved.

なお、図４に示すように吸気孔１７は裏面板部１３に設けられてもよい。   In addition, as shown in FIG. 4, the intake holes 17 may be provided in the back plate part 13.

次に、第二実施形態について図６に基づいて説明する。なお、本実施形態については図１乃至図５に示す上記第一実施形態と大部分について同じであるため、同じ構成については同符号を付して説明を省略し、主に異なる部分について説明する。   Next, a second embodiment will be described based on FIG. Since this embodiment is the same as the first embodiment shown in FIGS. 1 to 5 for the most part, the same components are denoted by the same reference numerals, description thereof is omitted, and different portions are mainly described. .

フレーム部１１と、補強リブ１５と、表面板部１２と裏面板部１３のうちの第一の面板部とは、合成樹脂により一体に形成される。従って、フレーム部１１と補強リブ１５と第一の面板部が接合する部分に連通口１５ａが設けられると、射出成形をする際に金型が抜けなくなってしまう。そこで、補強リブ１５の表面板部１２と裏面板部１３のうちの第二の面板部の端縁に、連通口１５ａが設けられる。   The frame portion 11, the reinforcing rib 15, and the first face plate portion of the front plate portion 12 and the back plate portion 13 are integrally formed of synthetic resin. Therefore, if the communication port 15a is provided at a portion where the frame portion 11, the reinforcing rib 15 and the first face plate portion are joined, the mold cannot be removed during injection molding. Therefore, a communication port 15 a is provided at the edge of the second face plate portion of the front face plate portion 12 and the back face plate portion 13 of the reinforcing rib 15.

本実施形態では、図６に示すように、吸気孔１７はフレーム部１１の側面に設けられている。なお、吸気孔１７は図４に示すように裏面板部１３に設けられてもよい。   In the present embodiment, as shown in FIG. 6, the intake hole 17 is provided on the side surface of the frame portion 11. Note that the intake holes 17 may be provided in the back plate 13 as shown in FIG.

以上のような構成にすることにより、フレーム部１１と連通口１５ａを有する補強リブ１５と第一の面板部とが射出成形により一体成形でき、工程数を少なく製造することができる。   With the above configuration, the reinforcing rib 15 having the frame portion 11 and the communication port 15a and the first face plate portion can be integrally formed by injection molding, and the number of processes can be reduced.

１ 断熱建材
１１ フレーム部
１２ 表面板部
１３ 裏面板部
１３ａ フランジ部
１４ 内部空間
１５ 補強リブ
１５ａ 連通口
１６ 房
１７ 吸気孔
２ 栓 DESCRIPTION OF SYMBOLS 1 Thermal insulation building material 11 Frame part 12 Front surface plate part 13 Back surface plate part 13a Flange part 14 Internal space 15 Reinforcement rib 15a Communication port 16 Tuft 17 Intake hole 2 Plug

Claims (2)

内部に表裏方向に貫通する孔を有する環状をしたフレーム部と、
前記フレーム部の表側の面に設けられる表面板部と、
前記フレーム部の裏側の面に設けられる裏面板部と、
前記フレーム部と前記表面板部と前記裏面板部とで密閉される内部空間と、
前記内部空間の前記表面板部と前記裏面板部との間に介在する合成樹脂により形成された補強リブと、
前記フレーム部又は前記裏面板部に形成され前記内部空間に連通する吸気孔と、
前記吸気孔を閉塞する栓と、
を備え、
前記吸気孔を介して前記内部空間が減圧されて真空又は減圧状態が保持可能であり、
前記補強リブにより前記内部空間が複数の房に仕切られ、
前記補強リブにこの補強リブにより仕切られる両側の前記房を連通する連通口が形成され、
前記フレーム部と、前記補強リブと、前記表面板部と前記裏面板部のうちの第一の面板部と、が合成樹脂により一体に形成され、
前記補強リブの前記表面板部と前記裏面板部のうちの第二の面板部側の端縁に、前記連通口となる切欠が形成されることを特徴とする断熱建材。 An annular frame portion having a hole penetrating in the front and back direction inside,
A surface plate portion provided on a front side surface of the frame portion;
A back plate provided on the back surface of the frame portion;
An internal space sealed by the frame portion, the front plate portion and the back plate portion,
A reinforcing rib formed of a synthetic resin interposed between the front plate portion and the back plate portion of the internal space;
An intake hole formed in the frame part or the back plate part and communicating with the internal space;
A plug that closes the intake hole;
With
Wherein Ri vacuum or reduced pressure state can be held der the inner space is reduced in pressure through the suction hole,
The internal space is partitioned into a plurality of tufts by the reinforcing ribs,
A communication port for communicating the tufts on both sides partitioned by the reinforcing rib is formed in the reinforcing rib,
The frame portion, the reinforcing rib, the first face plate portion of the front plate portion and the back plate portion are integrally formed of synthetic resin,
Wherein the second edge of the face plate side of the back plate portion and the surface plate portion of the reinforcing ribs, notches serving as the communicating port is formed adiabatic building materials, characterized in Rukoto. 前記吸気孔に、前記栓として、外側の圧力が内側の圧力よりも所定値以上小さくなると開いて気体を流出可能とする逆止弁が設けられることを特徴とする請求項１記載の断熱建材。 2. The heat insulating building material according to claim 1, wherein a check valve is provided in the intake hole as the plug so as to open and allow gas to flow out when the outer pressure becomes smaller than the inner pressure by a predetermined value or more .
JP2012201193A 2012-09-13 2012-09-13 Thermal insulation building material Expired - Fee Related JP6008283B2 (en)

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JPS5610889A (en) * 1979-07-02 1981-02-03 Genbee Kawaguchi Vacuum adiabatic wall structure body
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