JPH0122038Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は建築、構築物の内、外壁の横張り壁
体、または縦張り壁体を形成するのに有用なサイ
デイングボード（以下、単にボードという）に関
する。 従来から使用されているこの種ボードとして
は、特公昭51−29339号、実公昭51−11882号
などがある。しかしながら、上記ボードにおいて
は種々の問題があつた。すなわち、のボード
（下見板）では雨水が風で吹きつけられたりする
と単なる平板同士の連結構造のため雨水が裏面に
漏洩し、胴縁、柱を腐食させたり、室内や押入に
湿気を与えたりする欠点があつた。また、のボ
ードでは下縁の傾斜部の立上り部までの長さが長
いため引張り力に弱く、目地なしの外装しか形成
できない不利があつた。しかも、本来は目地なし
の外装なのに施工技術によつて目地なし、目地あ
りのバラバラな幅の目地からなる外装となる不利
があつた。また、このボードは側面の形状が複雑
で成形が難しく、かつ高価となり、その上、平坦
部に補強用のリブもなく、反り、捻れなどが大幅
に化粧面に現われて美観を損なう欠点があつた。
また、ボードは裏打材がないため化粧面の裏面に
結露が生じ、錆たり、壁体自体の断熱性、防火
性、防音性に欠けると共に、化粧面の変形を阻止
できず、しかもボード自体が変形しやすく、か
つ、連結力に欠ける欠点があつた。さらに、前記
したボード，のいずれを用いても、ボードの
連結部は連結部の大部分が下地材に直接接触して
いるため、結露により下地を腐食することが多
く、かつ、地震などにおける躯体の振動、変形が
直接伝達されるため離脱し易い不利があつた。 本考案はこのような欠点を除去するため、表面
材を堅牢な断面形状とし、その凹部に芯材を充填
すると共に、芯材の背面を裏面材で被覆したサン
ドイツチ構造とし、化粧面にペコツキ、反り、捻
れが現われず、しかも連結部の係合力が強化さ
れ、その上に連結部の断熱性、防振性にすぐれ、
かつボードの施工、特に釘打ちが容易で、しかも
必要により固定部の２個所を打設して強力に躯体
に固設できると共に、防水性、断熱性、美観性を
も具備せしめたボードを提案する。 以下に図面を用いて本考案に係るボードの一実
施例について詳細に説明する。すなわち、第１図
は上記ボードを示す斜視図であり、１は表面材で
金属板（平板、エンボス板）、合成樹脂板を例え
ば第２図に示すような形状に成形、押出し等して
形成したものである。２は横長の化粧面（以下、
単に化粧面という）で、その表面に少なくとも１
本以上の化粧溝３を長手方向に沿つて形成したも
のである。化粧溝３は主に化粧面２の反り、捻
れ、ペコツキの防止とボードを施工した際の壁体
の目地と化粧溝３とを識別しにくくして壁体を１
つの模様で統一した美しい外観とすると共に、大
きさの割に立体感を醸し出すのに役立つものであ
る。さらに説明すると、化粧溝３は縦断面が不等
辺台形状、所謂垂直な底面３ａとその上端縁を外
方へθ₁（直角）で化粧面２と直交する水平な上面
３ｂと下端縁を角度θ₂（鋭角）で後上りに傾斜し
た下側の傾斜面３ｃとから形成したものである。
４は係止部で化粧面２の下端を内方に２度、屈曲
して縦断面を略Ｌ字状に形成したものである。さ
らに説明すると、係止部４は化粧面２とθ₃＝90゜、
所謂水平な底辺５と上方に向つて垂直、もしくは
幾分内方へ傾斜した係止片６、および係止片６の
先端をはぜ状に外方、もしくは内方（図示せず）
に屈曲した舌片７とからなり、底辺５は係止片６
までの長さを短かくして係止部４の変形を最小限
にすると共に、直角な形状による陰影で目地の立
体感を助長し、係止片６は後記する係合部と大き
い面積で接触すると共に、施工の際のガイド、お
よび安定支持片と防水面として機能し、舌片７は
後記する突条との係合部分に毛細管現象が生ずる
のを防止する空隙の形成と施工時に係止片６の先
端が刃物のように鋭利になるのを防止して作業時
の危険性をなくするのに役立つものである。８は
係合部で化粧面２の上端を前記角度θ₂に相応した
角度θ′₂で後上りに傾斜した傾斜部９とその上端
を上方に垂直に延長した目地下地部１０と目地下
地部１０の上端をその表面に対し角度θ₄（鋭角）
で傾斜したリブ状の突条１１とから形成し、主に
目地下地として機能し、更に係止部を係合すると
共に、下地、胴縁などと表面材１が接触するのを
低減し、かつ、防振、および後記する芯材を収納
するのに役立たせ、かつ、原料漏れのない縦断面
とした型材として役立つものである。さらに説明
すると、傾斜部９は雨水の流れをよくし、目地下
地部１０に雨水が貯溜するのを防止すると共に、
目地を形成した際の立体感を助長し、かつ、働き
幅を増大するのに役立つものである。また、目地
下地部１０は垂直な面、あるいは幾分内方に傾斜
したような略垂直な面からなり、目地部の防水下
地、および係止片６のガイドとして役立ち、突条
１１は係止片６をある弾力下で係合すると共に、
雨返し、および表面材１の変形防止のための補強
と３角形状の屈曲部１１ａの形成により係止片６
と突条１１間に生ずる毛細管現象を阻止するのに
役立つものである。なお、角度θ₄は係合力の強化
のために舌片７が接触する面だけは、傾斜してい
ることが好ましい。具体的な角度θ₄としては底辺
５の高さh₁、表面材１の幅Ｗなどの寸法によつて
定まるものである。１２は固定部で突条１１の外
側面１１ｂの端部を上方へ垂直に延長した補助打
設面１３と、上記補助打設面１３と前記目地下地
部１０とを略面一としてなり、前記補助打設面１
３先端を内方に直角に屈曲した高さΔhの突出端
面１４とその下端を上方へ垂直に延長した固定片
１５とからクランク状断面に形成すると共に、固
定片１５の先端を内方、もしくは外方に屈曲した
舌片１６とから形成したものである。また、固定
部１２はボードを雨水の漏洩しない位置で第３図
に示すように下地（胴縁、間柱、躯体、下地板）
Ａに釘Ｂを介して固定すると共に、表面材１が下
地Ａに直接に接触する面積を低減し、耐振性を強
化するのに役立つものである。勿論、補助打設面
１３はボード自体をより強固に躯体に固定すると
共に、ボードの係合力の強化をも図るものであ
る。１７は凹部で化粧面２、化粧溝３、底辺５、
係合部８、および固定部１２の補助打設面１３と
突出端面１４とによつて囲まれた空間部分であ
り、芯材１８を充填するのに役立つものである。
上記芯材１８は成形体を接着剤を介して、もしく
は液状原料を原料のフオーム形成時の自己接着性
を介して凹部１７に一体に充填するものであり、
主に断熱材、クツシヨン材、バツクアツプ材、補
強材、防音材、防湿材、防錆材として機能するも
のである。その断面形状は凹部１７に対応すると
共に、係止部４近傍の端部を略３角形状、長方形
状（図示せず）などの空隙が底辺５と係止片６間
に形成されるように逃げ溝１９を設け、逃げ溝１
９は主に上段のボードの突条１１を装着するのに
役立つ。さらに、芯材１８の原料としては、合成
樹脂発泡体、所謂フオームとなる例えばポリウレ
タンフオーム用樹脂、ポリイソシアヌレートフオ
ーム用樹脂、フエノールフオーム用樹脂、および
これらに難燃剤、難燃助剤（硼砂、メタ硼酸ソー
ダ、炭酸カルシウム、水酸化アルミニウム、三酸
化アンチモン、ベントナイト、パーライト粒、シ
ラスバルーンの１種以上を添加したもの、もしく
はロツクウール、ガラスウール、塩化ビニルフオ
ーム、ポリスチレンフオーム、ポリエチレンフオ
ームなどの成形体の１種または２種以上からなる
ものである。なお、好ましくは、フオーム原料を
凹部１７に吐出、敷設などして反応、発泡させ、
その際の自己接着性を利用して一体化することが
できるようなものである。２０は裏面材でシート
状物からなり、主に芯材１８の裏面を被覆すると
共に、芯材１８形成時の離型材、ボード自体をサ
ンドイツチ構造とする面材、および防水材、熱反
射材として役立つものである。さらに説明する
と、裏面材２０は例えばアスベスト紙、クラフト
紙、アスフアルトフエルト、金属箔（Ａ，Pb，
Fe）、合成樹脂シート、ゴムシート、布シート、
ガラスクロスの１種、もしくはこれらの１種以上
を組み合せたもの、あるいは防水処理、難燃処理
されたシートなどからなるものである。ここで、
上記各部の大きさについて簡単に説明すると、底
面３ａの長さを₁、化粧溝３の開口の幅をW₁、
化粧溝３の深さをｄ、係止片６の長さを₂、目
地下地部１０の幅をW₂、突条１１の先端から傾
斜部９の上端までの幅をW₃、化粧面２の上端か
ら突条１１までの幅をW₄、傾斜部９の高さをh₂、
固定部１２の固定片１５の表面から突条１１の先
端までの高さをh₃、目地下地部１０の表面から突
条１１までの高さをh₄、化粧面２から固定部１２
の固定片１５表面までの高さをh₅、固定片１５の
長さを₃、表面材１の板厚をｔ、ボードを施工
した壁体の目地開口幅をW₅、目地底面幅をW₆、
芯材１８の各部の厚さをt₁，t₂，t₃とすると例え
ば、h₁＝ｄ＝h₂，W₁＝W₅，₁＝W₆，W₆＋₂
＝W₂，W₃＞W₁，θ₂＝θ₂，Δh＝h₅−（h₂），h₄＜
h₁，h₄≦h₂，ｄ＋Δh＝h₅，t₁＝h₅−ｔ，t₂＝h₅−
ｄ，t₃＝Δh−ｔ，₃＝10〜20mmとしたようなも
のである。 次に施工例につき説明する。 いま、第１図に示すようなボードを第３図に示
すように横張りして外壁を構成すると仮定する。
そこで主柱、間柱、壁下地、あるいは胴縁などの
枠体Ａに第ｎ段目のボード○イを釘Ｂを介して固定
したとする。次に第ｎ＋１段目のボード○ロの係止
部４を第ｎ段目のボード○イの係合部８に係合し、
次にボード○ロの固定部１２を釘Ｂで固定する。従
つて、外壁全体を構成するには、上記のような工
程を順次、土台側から桁に向つて行なえばよい。 以上説明したのは本考案に係るボードの一実施
例にすぎず、第４図ａ〜ｃ、第５図ａ〜ｅ、第６
図ａ〜ｇ、第７図ａ〜ｆ、第８図ａ〜ｅ、および
第９図ａ〜ｄに示すように形成することもでき
る。 すなわち、第４図ａ〜ｃは化粧面２に化粧溝３
を２本、あるいは深さｄを前記と相違して形成し
たボードであり、第５図ａ〜ｅは化粧溝３の縦断
面形状を幾分変形した不等辺台形状のボード、お
よび化粧溝３を角状に形成したボードの一部分を
示すものであり、第６図ａ〜ｇは係止部４の変形
を示し、特にｂ図は舌片７を内方に屈曲し、さら
に底辺５の裏面に沿つて延ばした舌片７′とした
係止部４である。第７図ａ〜ｆは突条１１の変形
例であり、第８図ａ〜ｅは逃げ溝１９の変形例、
第９図ａ〜ｅは固定部分の構造のその他の実施例
であり、ａ図は裏面材２０の上端を突出端面１４
の下端を内方に屈曲し、再び外方に突出して突起
１４ａを形成し、ここに裏面材２０の上端を入れ
た構造、ｂ図は裏面材２０を幾分剛性のある材料
で形成し、補助打設面１３の上端に長手方向に沿
つて突起１３ａを設け、かつ固定片１５の先端を
アダ折り状に屈曲し、その上裏面材２０を突起１
３ａの内面に接触するように配設した構造、ｃ図
は裏面材２０の上端をΔだけ突出させ、防水性
の向上を図つた構造、ｄ図は補助打設面１３の上
端に長手方向に沿つて突起１３ａを形成した構
造、ｅ図は補助打設面１３の途中に長手方向に沿
つて突起１３a′を設けた構造である。 上述したように本考案に係るボードによれば、
係止部と係合部の連続構造に毛細管現象が生ずる
こともなく、かつ、係止部の舌片、係合部の突
条、および延長部によつて雨水がボードの内側に
漏洩することがなく下地、あるいは壁内部を腐食
することがない特徴がある。また、ボードの固定
は雨水の浸入しない位置としたため固定具に錆が
発生することがない利点がある。さらに、化粧面
に化粧溝を形成したため、長尺のボードが反つた
り、捻れたり、ペコツキなどによつて外観を悪く
することがない特徴がある。しかも、化粧溝は縦
断面を不等辺台形状としたため、ボードを連結し
た際の目地の外観と同じとなり、従来の壁面と異
なり目地が模様として機能し、美しい外観の壁面
に構成しうる特徴がある。また、化粧溝、目地は
不等辺台形状の縦断面となるため水切りがよく、
かつ、実質寸法より立体感を醸し出す特徴があ
る。また、ボードの固定部を２段階に固定できる
ため、躯体にボードを確実に、しかも係合力をバ
ツクアツプするように施工できる特徴がある。さ
らに、このボードを用いて壁を形成した際には、
防音性、断熱性、防振性、耐火性、耐結露性、お
よび機械強度が大幅に向上する特徴がある。その
他、従来にも増して凹部を型材として使用できる
断面に形成したためスチールベルトなどで搬送で
き、生産性が大きく向上する特徴がある。 [Detailed Description of the Invention] The present invention relates to a siding board (hereinafter simply referred to as a board) useful for forming a horizontal wall or a vertical wall in an internal or external wall of an architecture or structure. Conventionally used boards of this type include Japanese Patent Publication No. 51-29339 and Japanese Utility Model Publication No. 51-11882. However, the above board had various problems. In other words, if rainwater is blown by the wind on the board (cladding board), the rainwater will leak to the back side because it is simply a connecting structure between flat plates, corroding the edges and pillars, and adding moisture to the room and closet. There was a drawback. In addition, because the length of the sloped part of the lower edge to the rising part of the board is long, it is weak in tensile force and has the disadvantage that only an exterior without joints can be formed. Moreover, although the exterior was originally without joints, the construction technology resulted in exteriors consisting of joints of varying widths, with and without joints, which was disadvantageous. In addition, this board has a complicated side surface shape, making it difficult and expensive to mold.Furthermore, there is no reinforcing rib on the flat part, so warping, twisting, etc. appear on the decorative surface, spoiling the aesthetic appearance. Ta.
In addition, since the board does not have a backing material, condensation may form on the back of the decorative surface, causing rust, and the wall itself lacks heat insulation, fireproofing, and soundproofing properties, and the decorative surface cannot be prevented from deforming. It had the drawbacks of being easily deformed and lacking in connection strength. Furthermore, no matter which of the above-mentioned boards is used, most of the connecting parts of the boards are in direct contact with the base material, so condensation often corrodes the base material. Since the vibrations and deformation of the parts are directly transmitted, they have the disadvantage of being easy to separate. In order to eliminate such drawbacks, the present invention has a sandwich structure in which the surface material has a robust cross-sectional shape, the recesses are filled with a core material, and the back surface of the core material is covered with a backing material, and the decorative surface is made of There is no warping or twisting, and the engagement force of the connecting part is strengthened.In addition, the connecting part has excellent heat insulation and vibration-proofing properties.
We also propose a board that is easy to install, especially nailing, and can be strongly fixed to the structure by driving two fixing parts if necessary, and is also waterproof, heat-insulating, and aesthetically pleasing. do. An embodiment of the board according to the present invention will be described in detail below with reference to the drawings. That is, FIG. 1 is a perspective view showing the above-mentioned board, and 1 is a surface material formed by molding or extruding a metal plate (flat plate, embossed plate) or a synthetic resin plate into the shape shown in FIG. 2, for example. This is what I did. 2 is a horizontally long decorative surface (hereinafter referred to as
(simply referred to as a cosmetic surface) with at least 1
More than one decorative groove 3 is formed along the longitudinal direction. The decorative groove 3 is mainly used to prevent the decorative surface 2 from warping, twisting, and cracking, and to make it difficult to distinguish between the joints in the wall and the decorative groove 3 when the board is installed.
This design not only creates a beautiful appearance with a unified pattern, but also helps create a three-dimensional feel despite its size. To explain further, the decorative groove 3 has a scalene trapezoidal longitudinal section, and the so-called vertical bottom surface 3a and its upper edge are angled outward at θ ₁ (right angle) with the horizontal upper surface 3b perpendicular to the decorative surface 2 and the lower edge thereof. It is formed from a lower inclined surface 3c which is inclined upward at the rear at an angle θ ₂ (acute angle).
Reference numeral 4 denotes a locking portion in which the lower end of the decorative surface 2 is bent inward twice to form a substantially L-shape in longitudinal section. To explain further, the locking part 4 is at an angle of θ ₃ =90° with the decorative surface 2,
A so-called horizontal bottom side 5, a locking piece 6 that is vertically directed upward, or slightly inclined inward, and a tip of the locking piece 6 that is arranged outwardly or inwardly (not shown) in the form of a seam.
The bottom side 5 is a locking piece 6.
In addition to minimizing the deformation of the locking part 4 by shortening the length of the locking piece 6, the shading of the right-angled shape enhances the three-dimensional appearance of the joint, and the locking piece 6 makes contact with the engaging part to be described later over a large area. In addition, the tongue piece 7 functions as a guide during construction, a stable support piece, and a waterproof surface, and the tongue piece 7 functions as a locking piece during construction and forms a gap to prevent capillary phenomenon from occurring at the engagement portion with the protrusion described later. This is useful in preventing the tip of the tool 6 from becoming sharp like a knife, thereby eliminating danger during work. Reference numeral 8 denotes an engaging part, which connects the upper end of the decorative surface 2 with an inclined part 9 that slopes upward at an angle θ' ₂ corresponding to the angle θ ₂ , and a joint base part 10 extending vertically upward from the upper end thereof. Angle θ ₄ (acute angle) between the upper end of the base 10 and its surface
It is formed from an inclined rib-like protrusion 11, mainly functions as a joint base, and further engages the locking part and reduces contact of the surface material 1 with the base, rim, etc. In addition, it is useful for vibration isolation and for storing the core material described later, and is useful as a mold material with a vertical cross section that does not leak raw material. To explain further, the slope part 9 improves the flow of rainwater and prevents rainwater from accumulating in the basement part 10.
It promotes a three-dimensional effect when forming joints and is useful for increasing the working width. Further, the joint base portion 10 is made up of a vertical surface or a substantially vertical surface that is slightly inclined inward, and serves as a waterproof base for the joint portion and as a guide for the locking piece 6, and the protrusion 11 serves as a guide for the locking piece 6. While engaging the stopper piece 6 under a certain elasticity,
The locking piece 6 is formed by reinforcing the rain cover and preventing deformation of the surface material 1 and by forming the triangular bent part 11a.
This serves to prevent capillary action occurring between the protrusions 11 and 11. Incidentally, it is preferable that the angle θ ₄ is such that only the surface in contact with the tongue piece 7 is inclined in order to strengthen the engagement force. The specific angle θ ₄ is determined by dimensions such as the height h ₁ of the base 5 and the width W of the surface material 1 . Reference numeral 12 denotes a fixed portion, which includes an auxiliary pouring surface 13 that extends vertically upward from the end of the outer surface 11b of the protrusion 11, and the auxiliary pouring surface 13 and the joint base portion 10 are substantially flush with each other; Said auxiliary pouring surface 1
3. A protruding end surface 14 with a height Δh whose tip is bent inward at right angles and a fixing piece 15 whose lower end is extended vertically upward are formed into a crank-shaped cross section, and the tip of the fixing piece 15 is bent inward or It is formed from a tongue piece 16 bent outward. In addition, the fixing part 12 is used to attach the board to the base (edge, stud, frame, base board) at a position where rainwater will not leak.
It is fixed to A via nails B, reduces the area where the surface material 1 directly contacts the base A, and is useful for strengthening vibration resistance. Of course, the auxiliary driving surface 13 serves to more firmly fix the board itself to the frame and also to strengthen the engagement force of the board. 17 is a concave portion with a decorative surface 2, a decorative groove 3, a bottom side 5,
This is a space surrounded by the engaging portion 8 , the auxiliary casting surface 13 and the protruding end surface 14 of the fixing portion 12 , and is useful for filling the core material 18 .
The core material 18 is one in which the recess 17 is integrally filled with a molded body through an adhesive or with a liquid raw material through the self-adhesive properties of the raw material during foam formation,
It mainly functions as a heat insulating material, cushion material, backup material, reinforcing material, soundproofing material, moisture proofing material, and rust preventing material. Its cross-sectional shape corresponds to the concave portion 17, and the end near the locking portion 4 is approximately triangular or rectangular (not shown) so that a gap is formed between the bottom side 5 and the locking piece 6. An escape groove 19 is provided, and an escape groove 1 is provided.
9 mainly serves to attach the protrusion 11 of the upper board. Furthermore, raw materials for the core material 18 include synthetic resin foams, such as resins for polyurethane foams, resins for polyisocyanurate foams, and resins for phenol foams, as well as flame retardants and flame retardant aids (borax, borax, etc.). Products containing one or more of the following: sodium metaborate, calcium carbonate, aluminum hydroxide, antimony trioxide, bentonite, perlite grains, and shirasu balloons, or molded products of rock wool, glass wool, vinyl chloride foam, polystyrene foam, polyethylene foam, etc. Preferably, the foam raw material is discharged and placed in the recess 17 to react and foam,
It is possible to integrate them by utilizing their self-adhesive properties. Reference numeral 20 denotes a backing material, which is a sheet-like material, which mainly covers the backside of the core material 18, and also serves as a release material when forming the core material 18, a surface material for making the board itself have a sandwich structure, a waterproofing material, and a heat reflecting material. It's useful. To explain further, the back material 20 is made of, for example, asbestos paper, kraft paper, asphalt felt, metal foil (A, Pb,
Fe), synthetic resin sheet, rubber sheet, cloth sheet,
It is made of one type of glass cloth, a combination of one or more of these types, or a sheet that has been treated with waterproofing or flame retardant treatment. here,
To briefly explain the sizes of each of the above parts, the length of the bottom surface 3a is ₁ , the width of the opening of the decorative groove 3 _{is W1} ,
The depth of the decorative groove 3 is d, the length of the locking piece 6 is ₂ , the width of the joint base part 10 is W ₂ , the width from the tip of the protrusion 11 to the upper end of the slope part 9 is W ₃ , the decorative surface The width from the upper end of 2 to the protrusion 11 is W ₄ , the height of the slope 9 is h ₂ ,
The height from the surface of the fixing piece 15 of the fixing part 12 to the tip of the protrusion 11 is h ₃ , the height from the surface of the joint basement part 10 to the protrusion 11 is h ₄ , and from the decorative surface 2 to the fixing part 12
The height to the surface of the fixed piece 15 is h ₅ , the length of the fixed piece 15 _{is 3} , the thickness of the surface material 1 is t , the joint opening width of the wall with the board installed is W ₅ , and the bottom width of the joint is W ₆ ,
Letting the thickness of each part of the core material 18 be t ₁ , t ₂ , t _{3 ,} for example, h ₁ = d = h ₂ , W ₁ = W ₅ , ₁ = W ₆ , W ₆ + ₂
= W ₂ , W ₃ > W ₁ , θ ₂ = θ ₂ , Δh = h ₅ − (h ₂ ), h ₄ <
h ₁ , h ₄ ≦h ₂ , d+Δh=h ₅ , t ₁ = h ₅ −t, t ₂ = h ₅ −
d, t ₃ =Δh−t, ₃ = 10 to 20 mm. Next, a construction example will be explained. Assume now that the boards shown in FIG. 1 are laid horizontally as shown in FIG. 3 to form an exterior wall.
Assume that the nth stage board ○I is fixed to a frame A such as a main pillar, stud, wall base, or rim using nails B. Next, the locking part 4 of the n+1st stage board ○B is engaged with the engaging part 8 of the nth stage board ○B,
Next, fix the fixing part 12 of the board ○○ with nails B. Therefore, in order to construct the entire outer wall, the above-mentioned steps may be performed sequentially from the base side toward the girder. What has been described above is only one embodiment of the board according to the present invention, and FIGS. 4 a to c, 5 a to e, and 6
It can also be formed as shown in Figures a to g, Figures 7 a to f, Figures 8 a to e, and Figures 9 a to d. That is, in FIGS. 4a to 4c, there are decorative grooves 3 on the decorative surface 2.
5A to 5E show a scalene trapezoidal board in which the vertical cross-sectional shape of the decorative groove 3 is slightly modified, and a board in which the decorative groove 3 is formed with two or a depth d different from the above. 6A to 6G show the deformation of the locking part 4 , and in particular, FIG. The locking portion 4 is a tongue piece 7' extending along. FIGS. 7a to 7f show modified examples of the protrusion 11, and FIGS. 8 a to e show modified examples of the relief groove 19,
9A to 9E show other embodiments of the structure of the fixed part, and FIG. 9A shows the upper end of the back material 20 being
The lower end of is bent inward and protrudes outward again to form a protrusion 14a, into which the upper end of the back material 20 is inserted. A protrusion 13a is provided along the longitudinal direction at the upper end of the auxiliary casting surface 13, and the tip of the fixing piece 15 is bent in a folded shape, and the upper back material 20 is attached to the protrusion 1.
Figure 3a shows a structure in which the upper end of the back material 20 protrudes by Δ to improve waterproofness, and Figure d shows a structure in which the upper end of the auxiliary pouring surface 13 is placed in the longitudinal direction. Figure e shows a structure in which a protrusion 13a is provided along the longitudinal direction of the auxiliary casting surface 13. As mentioned above, according to the board according to the present invention,
Capillarity does not occur in the continuous structure of the locking part and the engaging part, and rainwater does not leak inside the board due to the tongue of the locking part, the protrusion of the engaging part, and the extension part. It has the characteristic that it does not corrode the foundation or the inside of the wall. Additionally, the board is fixed in a location where rainwater does not infiltrate, which has the advantage of preventing rust from forming on the fixtures. Furthermore, since the decorative grooves are formed on the decorative surface, the long board does not deteriorate in appearance due to warping, twisting, or sagging. Moreover, since the decorative groove has a scalene trapezoidal longitudinal section, the appearance is the same as the joint when the boards are connected, and unlike conventional walls, the joint functions as a pattern, making it possible to create a wall with a beautiful appearance. be. In addition, the decorative grooves and joints have a scalene trapezoidal vertical cross section, so water drains well.
Moreover, it has the characteristic of creating a three-dimensional effect rather than its actual size. In addition, since the fixing portion of the board can be fixed in two stages, it is possible to securely attach the board to the building frame while backing up the engagement force. Furthermore, when forming a wall using this board,
It has the characteristics of significantly improved soundproofing, heat insulation, vibration proofing, fire resistance, condensation resistance, and mechanical strength. In addition, since the concave portion is formed into a cross section that can be used as a mold material, it can be transported using a steel belt, which greatly improves productivity.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係るサイデイングボードの一
実施例を示す斜視図、第２図はその要部である表
面材を示す説明図、第３図はその施工状態の一部
を示す説明図、第４図ａ〜ｃ、第５図ａ〜ｅ、第
６図ａ〜ｇ、第７図ａ〜ｆ、第８図ａ〜ｅ、およ
び第９図ａ〜ｅはその他の実施例を示す説明図で
ある。 １……表面材、２……横長の化粧面、３……化
粧溝、４……係止部、６……係止片、８……係合
部、１１……突条、１２……固定部、１８……芯
材、２０……裏面材。 Fig. 1 is a perspective view showing an embodiment of the siding board according to the present invention, Fig. 2 is an explanatory view showing the surface material which is the main part, Fig. 3 is an explanatory view showing a part of the construction state, Figures 4 a to c, Figures 5 a to e, Figures 6 a to g, Figures 7 a to f, Figures 8 a to e, and Figures 9 a to e are explanations showing other embodiments. It is a diagram. 1 ... Surface material, 2... Horizontal decorative surface, 3... Decorative groove, 4 ... Locking part, 6... Locking piece, 8 ... Engaging part, 11... Projection, 12 ... Fixed part, 18... Core material, 20... Back material.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 縦断面が不等辺台形状であると共に、上面を水
平に下側の傾斜面を後上りとなるように形成した
化粧溝を少なくとも１本以上長手方向に設けた横
長の化粧面と、上記化粧面の下端を内方に屈曲し
て縦断面をＬ字状とした係止部と、前記化粧面の
上端を前記傾斜面の角度に相応し、かつ後上りに
傾斜した傾斜部と、概傾斜部の上端を上方に垂直
に延長した目地下地部と、該目地下地部の上端を
その表面に対し鋭角に屈曲してリブ状に形成した
突条とから、上段の係止部を係合した際に形成さ
れる目地の縦断面が、前記化粧溝の断面とほぼ同
じ形状となる係合部と、上記突条の外側端部を上
方に垂直に延長して形成した補助打設面と、該補
助打設面と前記目地下地部とを略面一としてな
り、前記補助打設面先端を内方に直角に屈曲して
形成した突出端面と、該突出端面端部を上方へ直
角に屈曲して成形した固定片と、前記補助打設面
と上記突出端面、及び固定片とから、クランク状
断面に形成した固定部とから表面材を構成し、前
記化粧面、係止部、係合部、および固定部とで囲
まれた空間に芯材を充填すると共に、係止部近傍
に上段の突条を装着するための逃げ溝を形成し、
また前記芯材の裏面を裏面材で被覆して一体に形
成したことを特徴とするサイデイングボード。 a horizontally elongated decorative surface having a scalene trapezoidal longitudinal section and at least one decorative groove formed in the longitudinal direction with the upper surface horizontal and the lower slope upward; and the decorative surface. a locking part whose lower end is bent inward to have an L-shaped vertical cross section; an inclined part whose upper end of the decorative surface corresponds to the angle of the inclined surface and which is inclined rearward upward; and a generally inclined part. The upper locking part is engaged with a joint base part whose upper end extends vertically upward, and a rib-shaped protrusion formed by bending the upper end of the joint base part at an acute angle with respect to the surface thereof. an engaging portion in which the vertical cross section of the joint formed when the joint is formed has approximately the same shape as the cross section of the decorative groove; and an auxiliary casting surface formed by extending the outer end of the protrusion vertically upward. , the auxiliary pouring surface and the eyelid subsurface are substantially flush with each other, and a protruding end surface formed by bending the tip of the auxiliary pouring surface inwardly at right angles, and an end surface of the protruding end surface formed at a right angle upwardly. A surface material is constituted by a fixing piece bent and molded, a fixing part formed in a crank-shaped cross section from the auxiliary casting surface, the protruding end face, and the fixing piece, and the decorative surface, the locking part, Filling the space surrounded by the engaging part and the fixing part with a core material, and forming an escape groove for attaching the upper protrusion near the engaging part,
Further, a siding board characterized in that the back surface of the core material is integrally formed by covering the back surface with a back surface material.