JPS6022168Y2 - roof base plate - Google Patents
roof base plateInfo
- Publication number
- JPS6022168Y2 JPS6022168Y2 JP1748680U JP1748680U JPS6022168Y2 JP S6022168 Y2 JPS6022168 Y2 JP S6022168Y2 JP 1748680 U JP1748680 U JP 1748680U JP 1748680 U JP1748680 U JP 1748680U JP S6022168 Y2 JPS6022168 Y2 JP S6022168Y2
- Authority
- JP
- Japan
- Prior art keywords
- base plate
- roof base
- sheet
- substrate
- synthetic resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】 本考案は屋根下地板に関するものである。[Detailed explanation of the idea] The present invention relates to a roof base plate.
近年、木造家屋においては、垂木、または母屋上に対し
て合板と断熱材とシート状物とを一体に形威した屋根下
地板を使用することが多い。In recent years, in wooden houses, roof base plates that are made of plywood, heat insulating material, and sheet-like materials are often used for rafters or main roofs.
しかしながら、この種下地板は繊維の配列、層構造によ
って合板、シート状物の長さ方向、幅方向に大きな強度
差があるにも拘らずその強度に関係く断熱材をサンドイ
ッチした構造となっているため、圧縮強度、曲げ強度に
欠けると共に、所定強度を得るには厚い合板等に形威し
なければならず、重く、その上コストアップとなる欠点
があった。However, this type of base board has a structure in which insulation materials are sandwiched together, despite the fact that there is a large difference in strength between the length and width of plywood and sheet-like materials due to the fiber arrangement and layer structure. As a result, it lacks compressive strength and bending strength, and in order to obtain the desired strength, it must be made of thick plywood or the like, making it heavy and increasing costs.
本考案は、このような欠点を除去するため、屋根下地板
の長手方向に基板、シート状物単体における最大引張り
強度を発揮するように基板とシート状物を配設し、かつ
、シート状物を長さ方向に向かって波が進行するような
断面に形成すると共に、波間にスプリング機能を具備さ
せ、しかもこの状態下の自然長より長く、所謂引張った
状態で合成樹脂発泡体に一体に固着し、曲げ、圧縮強度
を改善し、さらに曲げ強度のある基板を使用することに
よって従前より薄い板厚とし、軽量化、コストダウンを
図った屋根下地板を提案するものである。In order to eliminate such drawbacks, the present invention arranges the substrate and sheet material in the longitudinal direction of the roof base plate so that the substrate and sheet material alone exhibit the maximum tensile strength, and also It is formed into a cross section in which the waves advance in the length direction, and the waves have a spring function, and are longer than the natural length under this condition, so that they are fixed integrally to the synthetic resin foam in a so-called tensile state. We propose a roof base plate with improved bending and compressive strength, and by using a substrate with high bending strength, the board thickness is thinner than before, reducing weight and cost.
以下に図面を用いて、本考案に係る屋根下地板の一実施
例について詳細に説明する。An embodiment of the roof base plate according to the present invention will be described in detail below with reference to the drawings.
第1図は上記屋根下地材を示す斜視図であり、基板1と
シート状物2間に合成樹脂発泡体3を一体に固着した長
尺体である。FIG. 1 is a perspective view showing the roof base material, which is an elongated body in which a synthetic resin foam 3 is integrally fixed between a substrate 1 and a sheet-like material 2.
さらに説明すると、基板1は例えば第2図に示すように
屋根下地板の長手方向矢印イ方向に沿った繊維、木目の
配列からなる硬質基板、シージングボード、ロックウー
ルボードの1種からなるものである。To explain further, the board 1 is made of one type of hard board, sheathing board, or rock wool board, which is made of fibers and wood grains arranged along the longitudinal direction of the roof base plate in the direction of the arrow A, as shown in FIG. 2, for example. be.
これは基板1の曲げに対する強度は矢印口方向に比し大
幅に強い強度を示すからであり、かつ、同じ曲げ強度な
ら従前より薄物で形成でき、軽量化とコストダウンに寄
与するからである。This is because the strength against bending of the substrate 1 is significantly higher than that in the direction of the arrow, and also because it can be made thinner than before with the same bending strength, contributing to weight reduction and cost reduction.
また、硬質基材としては合板、石膏ボード、軟質繊維板
としてはシージングボードである。Further, the hard base material is plywood or gypsum board, and the soft fiberboard is sheathing board.
なお、基板1が第2図に示すように合板例えば3プライ
構威の場合は、繊維方向が長手方向にある表板1a、次
にこれと直交する方向の芯板1b、表板1aと同じ方向
の裏板1cのように構成したものであり、石膏ボードで
は石膏ボード用原紙の程度が大きく影響するものであり
、かつ、原紙の繊維に方向性が存在するのでその繊維の
方向性を屋根下地板の長手方向と同じような方向に抄造
したものを用いるものである。If the substrate 1 is made of plywood, for example, a 3-ply structure, as shown in Figure 2, the fiber direction is the same as the top plate 1a, which is the same as the top plate 1a. It is constructed like the back plate 1c of the direction, and in the case of gypsum board, the degree of the base paper for gypsum board has a great influence, and since the fibers of the base paper have directionality, the directionality of the fibers is The paper is made in the same direction as the longitudinal direction of the base plate.
さらに、シージングボード、ロックウールボードでは成
形の際に抄造法で行なうか、成形する際に一方向のみか
ら数段に分けて吐出し、その後でで成形等して繊維が基
板1における長手方向に配列されたようなものである。Furthermore, in the case of sheathing boards and rock wool boards, the fibers are formed in the longitudinal direction of the substrate 1 by a paper-forming method, or by discharging from only one direction in several stages during molding, and then molding, etc. It's like they're arranged.
なお、基板1は長尺体であり、その厚さは3rIrIr
L〜20TIr!n位、大きさは900X 1800m
mを標準とする。Note that the substrate 1 is a long body, and its thickness is 3rIrIr.
L~20TIr! Nth place, size is 900X 1800m
m is the standard.
シート状物2は基板1と同じ大きさであり、かつ、屋根
下地板をサンドインチ構造とすると共に、曲げ強度を強
化するためのものである。The sheet-like material 2 has the same size as the substrate 1, and is used to make the roof base plate have a sand inch structure and to strengthen the bending strength.
その構造は第3図aに示すように基板1の長手方向に波
が進行するように、所謂基板1の長手方向と直交する方
向(幅方向)に形成すると共に、第3図すに示すような
長さL□のシート状物2′をa図に示すような長さhま
で引張った状態て合成樹脂発泡体3に固着したものであ
る。The structure is formed in the so-called direction (width direction) orthogonal to the longitudinal direction of the substrate 1 so that waves propagate in the longitudinal direction of the substrate 1, as shown in FIG. A sheet-like material 2' having a length L□ is fixed to a synthetic resin foam 3 while being stretched to a length h as shown in Fig. a.
しかも、シート状物2は第4図に示すように繊維方向が
基板1の長手方向イと同じ方向イ′であり、かつ、波2
a、2b・・・間にはスプリング機能(弾力)を有する
ものである。Furthermore, as shown in FIG.
a, 2b... have a spring function (elasticity) between them.
なお、L2 Llの差はシート状物2における張力で
あり、この張力下でシート状物2が合成樹脂発泡体3と
一体に固着されていることである。Note that the difference between L2 and Ll is the tension in the sheet-like material 2, and the sheet-like material 2 is fixed integrally with the synthetic resin foam 3 under this tension.
さらに、シート状物2の材料としてはアスベスト紙、ク
ラフト紙、石膏紙、不織布に補強材として合成樹脂フィ
ルム、金属箔のいずれかをラミネートしたものである。Furthermore, the material of the sheet-like article 2 is asbestos paper, kraft paper, gypsum paper, or nonwoven fabric laminated with either a synthetic resin film or metal foil as a reinforcing material.
また、合成樹脂発泡体3は断熱材、接着剤として機能す
るものであり、例えばポリウレタンフォーム、ポリイソ
シアヌレートフオーム、フェールフオーム、塩化ビニル
フオーム、ポリエチレンフオーム等からなり、発泡繊維
は独立気泡で、厚さは約5〜5oTrrIrL位である
。In addition, the synthetic resin foam 3 functions as a heat insulating material and an adhesive, and is made of, for example, polyurethane foam, polyisocyanurate foam, fail foam, vinyl chloride foam, polyethylene foam, etc. The foamed fibers are closed cells and thick. The height is about 5-5oTrrIrL.
また、大きさは基板1とシート状物2と同じであり、フ
オーム自体の圧縮強度は例えば約1.1kg/c1ft
以上である。Further, the size is the same as that of the substrate 1 and the sheet-like material 2, and the compressive strength of the foam itself is, for example, about 1.1 kg/c1ft.
That's all.
なお、基板1とシート状物2の一体化には合成樹脂発泡
体3形戊時の自己接着性を介してフオーム形成と同時に
接着するものである。In addition, the substrate 1 and the sheet-like material 2 are bonded together at the same time as the foam is formed through the self-adhesive properties of the synthetic resin foam 3.
ここで本考案に係る屋根下地板と従来品との性能比較を
下表に示す。The table below shows a performance comparison between the roof base plate according to the present invention and conventional products.
基板1は合板で厚さ9TrrIn1プライ数が5、表板
、芯板、裏板の繊維方向が屋根下地板の長手方向と同じ
方向としたもの、基板1′は石膏ボードでボード用原紙
の繊維方向が屋根下地板と同じ方向のもの、基板1はシ
ージングインシュレーションボードを屋根下地板の長手
方向と同じように抄造したもの、シート状物2はクラフ
ト紙で190g/d1これに20μのアルミニウム箔を
ラミネートし、かつ、波状の高低差は11rrIILで
L2−Li=10mmとし、クラフト紙の繊維方向は基
板1の長手方向と同じもの、合成樹脂発泡体3はポリウ
レタンフォーム(嵩比重0.030)厚さ167Mtと
し、基板1と引張った状態下のシート状物2間に原料状
態で吐出し、一体に固着すると共に、合成樹脂発泡体3
を形威し、これを5日間放置したものである。Substrate 1 is made of plywood with a thickness of 9TrrIn1 and 5 plies, and the fiber direction of the top, core, and back plates is the same as the longitudinal direction of the roof base board.Substrate 1' is made of gypsum board and has the fibers of the base paper for the board. The direction is the same as that of the roof base plate, the substrate 1 is a sheathing insulation board made in the same longitudinal direction as the roof base plate, and the sheet material 2 is made of kraft paper with a weight of 190g/d1 and a 20μ aluminum foil. The wavy height difference is 11rrIIL and L2-Li=10mm, the fiber direction of the kraft paper is the same as the longitudinal direction of the substrate 1, and the synthetic resin foam 3 is polyurethane foam (bulk specific gravity 0.030). The thickness is 167 Mt, and the raw material is discharged between the substrate 1 and the sheet-like material 2 under tension and fixed together, and the synthetic resin foam 3
This was then left for five days.
これに対して従来品の屋根下地板Aは市販の繊維方向が
交互になった合板からなる基板、Bは市販の石膏ボード
、Cは市販のシージングインシュレーションボード、S
はシート状物で繊維の方向性を無視し、かつ、シート状
物は平板状で自然長のまま載置したもの、合成樹脂発泡
体3は本考案と同じものである。On the other hand, the conventional roof base board A is a commercially available plywood board with alternating fiber directions, B is a commercially available gypsum board, C is a commercially available sheathing insulation board, and S is a commercially available gypsum board.
The synthetic resin foam 3 is the same as that of the present invention, in which the fiber direction is ignored and the sheet-like material is a flat plate and is placed with its natural length.
さらに、曲げ試験はJIS−A−1408号により行な
い、試験体の大きさは3号試験体とする。Furthermore, the bending test is conducted according to JIS-A-1408, and the size of the test piece is No. 3 test piece.
さらに荷重は基板1面に負荷した。上記したように、基
板1とシート状物2の強度方向を最強方向に配列し、か
つ、屋根下地板の長手方向に合致させ、しかも引張られ
た状態での構造のため、より曲げ強度が強化されたこと
が明らかに解る。Furthermore, a load was applied to one surface of the substrate. As mentioned above, the strength directions of the substrate 1 and the sheet-like material 2 are arranged in the strongest direction and matched with the longitudinal direction of the roof base plate, and the structure is in a tensile state, so the bending strength is further strengthened. It's clear what happened.
また、圧縮強度は、いづれも1.1〜1.9kg/al
l内にあり、積雪400ko/−に十分に耐えう得るも
のであった。In addition, the compressive strength is 1.1 to 1.9 kg/al.
1, and was able to withstand a snowfall of 400 ko/-.
以上説明したのは、本考案に係る屋根下地板の一実施例
にすぎず、合成樹脂発泡体にフィラー例えば、パーライ
ト粒、バーミキュライト、硼砂、ガラス繊維(1rIr
!n〜1−12〜10cm)、人工骨材を分布せしめて
圧縮強度の向上に寄与せしめることもできる。What has been described above is only one embodiment of the roof base plate according to the present invention, and fillers such as perlite grains, vermiculite, borax, glass fiber (1rIr
! n~1-12~10cm), artificial aggregate can also be distributed to contribute to improving the compressive strength.
また、屋根下地に限らず、外壁、床の下地材にも使用で
きる。In addition, it can be used not only for roof substrates but also for outer walls and floor substrates.
上述したように、本考案に係る屋根下地板によれば、基
板の繊維方向を上記下地板の長手方向に沿って配列し、
かつ、シート状物の繊維方向も上記と同じように配列し
た組織とすると共に、屋根下地板の長手方向と直交する
方向の波を長手方向に進行するように形成腰その上自然
長より引張った長さで基板の長さと合致味その両部材間
に合成樹脂発泡体を一体に介在したため、各構成材の強
度に構造から強度とが相乗的に作用して従来の屋根下地
板の強度よりも19轄リアツブした屋根下地板とするこ
とができる特徴がある。As described above, according to the roof base plate according to the present invention, the fiber direction of the substrate is arranged along the longitudinal direction of the base plate,
In addition, the fiber direction of the sheet-like material is arranged in the same manner as above, and the waves in the direction perpendicular to the longitudinal direction of the roof base plate are formed so as to proceed in the longitudinal direction. The length matches the length of the board. Because the synthetic resin foam is integrally interposed between both members, the strength of each component and the structure work synergistically, making it stronger than conventional roof base plates. It has the characteristic that it can be used as a roof base plate with 19 types of rear parts.
また、構成材が同一厚さでも強度が大きいため、従前よ
りも薄い基材を使用でき軽量化とコストダウンを図るこ
とができる。Furthermore, since the strength of the constituent materials is high even if the thickness is the same, thinner base materials can be used than before, making it possible to reduce weight and cost.
第1図は本考案に係る屋根下地板の一実施例を示す斜視
図、第2図、第3図a、 b、第4図は本考案に使用す
る屋根下地板の構成材の一例を示す斜視図である。
1・・・・・・基板、2・・・・・・シート状物、3・
・・・・・合成樹脂発泡体。Fig. 1 is a perspective view showing an embodiment of the roof base plate according to the present invention, and Figs. 2, 3 a, b, and 4 show examples of the constituent materials of the roof base plate used in the present invention. FIG. 1...Substrate, 2...Sheet-like material, 3.
...Synthetic resin foam.
Claims (1)
状の基板とシート状物間に合成樹脂発泡体を一体に固着
してなり、また上記シート状物は長手方向と直交する波
を長手方向に向かって連続して形威し、該波間にスプリ
ング機能を有し、かつ、シート状物自体が引張られた長
さで前記合成樹脂発泡体に一体に固着されていることを
特徴とする屋根下地板。A synthetic resin foam is integrally fixed between a rectangular substrate in which fibers are arranged in a direction that opposes bending in the longitudinal direction, and a sheet-like material. A roof that has a continuous shape toward the top, has a spring function between the waves, and is integrally fixed to the synthetic resin foam with a stretched length of the sheet-like material itself. Base board.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1748680U JPS6022168Y2 (en) | 1980-02-12 | 1980-02-12 | roof base plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1748680U JPS6022168Y2 (en) | 1980-02-12 | 1980-02-12 | roof base plate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56118209U JPS56118209U (en) | 1981-09-09 |
JPS6022168Y2 true JPS6022168Y2 (en) | 1985-07-02 |
Family
ID=29613838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1748680U Expired JPS6022168Y2 (en) | 1980-02-12 | 1980-02-12 | roof base plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6022168Y2 (en) |
-
1980
- 1980-02-12 JP JP1748680U patent/JPS6022168Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS56118209U (en) | 1981-09-09 |
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