【考案の詳細な説明】
本考案は建築物等の壁を連結係合構造により形
成する場合にその連結部端を改良した建築用板に
関する。
従来におけるこの種、建築用板は例えば第１図
に示す形状になつていた。すなわち、建築用板１
は金属薄板を横断面扁平チヤネル状に形成し、そ
の一端縁を外方に突出して差込縁２を設け、他端
縁を内方に折り曲げ、さらに外方に延ばして差込
溝３を設け、その下縁４をさらに外方に突出して
延長部５を形成したものである。図から明らかな
ように、延長部５が平板状の構造であるため建築
用板を連結した場合に、例えば釘頭等６と次にく
る建築用板１の差込縁２とが接触するため建築用
板１の長手方向全長に亘つて間隙が形成されるこ
とになる。また、延長部５は機械強度的には薄鉄
板、例えば0.27mmの板厚そのものであつたり、剪
断、引張りは非常に弱かつた。換言すれば、平板
に釘孔を設けるため応力集中がその部分で最大と
なり、容易に破断してしまう等の不利があつた。
さらに、連結部は平滑面同士の接触であり、壁形
成の際に前記平滑面に摩擦力が大きく働き、滑り
にくく施工に時間がかかる欠点があつた。また、
このような連結部は僅かな外力、特に壁に直角方
向から加わる風などによる外力力により離脱する
ことが多々あつた。
本考案はこのような欠点を除去すると共に、表
面意匠の向上と簡単な施工により連結部に間隙の
少ない、しかも連結部の機械強度を強化した建築
用板を提案するものである。
以下に、図面を用いて本考案に係る建築用板の
一実施例について詳細に説明する。なお、第１図
と相応する部分は同一符号を付する。第２図は本
考案に係る建築用板１の一例を示す斜視図であ
り、１は建築用板で金属薄板を横断面を扁平チヤ
ネル状としたものであり、１ａは化粧面、２は差
込縁、３は差込溝、４は下縁、５は延長部であ
る。特にこの建築用板１においては、その表面側
の少なくとも化粧面１ａと延長部５にランダムな
凹凸模様７を延長部５にも形成したものであり、
これは延長部５の機械強度の向上と、建築用板１
の連結の際に固着具６、例えば釘頭６ａが連結構
造に悪い影響を与えないようにする機能をするた
めに設けたものである。即ち、ランダムな凹凸模
様７はエンボス加工によつて延長部５上に凹状部
８、凸状部９をランダムに分布したものである。
具体例としては凹状部８と凸状部９とが独立して
独立して存在したり、連続したり、混在した凹凸
模様７のいずれかである。この凹状部８の深さは
約0.1〜２mm位、その大きさは任意である。第３
図はこの建築用板を装着して壁を形成した場合の
一部分を示す縦断面図であり、胴縁１０に建築用
板１を釘６を介して固設し、その後で建築用板１
の差込縁２を建築用板１の差込溝３に差込み連結
するものである。図から明らかなように釘６の釘
頭６ａは完全に凹状部８の中に埋没し、建築用板
１の差込縁２と建築用板１の延長部５との接触部
分全長に亘つての空隙を形成することがない。ま
た凹凸状部の高低差が板厚と同様の如く、エンボ
ス時の加工硬化も付加されて機械強度が平板より
高くなる。
以上説明したのは本考案の一実施例にすぎず、
第４図ａ，ｂ，ｃに示す形状に形成することもで
きる。すなわち、ａ図は延長部５の端縁を上方に
折り曲げた建築用板１であり、ｂ図は下方に折り
曲げた建築用板１、ｃ図は建築用板１全面に凹凸
加工による凹凸模様７を形成した建築用板１であ
る。
上述したように本考案に係る建築用板によれ
ば、建築用板連結構造において固着具による間隙
の形成が全くなく建築用壁の形成面を面一に仕上
げることができる特徴がある。また、薄金属板か
らなる建築用板の化粧面、延長部の機械強度を大
幅に強化できる特徴がある。さらに化粧面に形成
した凹凸模様は化粧面の表面意匠を改善するもの
として機能する利点がある。 DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction board with an improved connection end when a wall of a building or the like is formed with a connection and engagement structure. Conventional construction boards of this type have the shape shown in FIG. 1, for example. That is, construction board 1
In this method, a thin metal plate is formed into a flat channel shape in cross section, one end of which protrudes outward to provide an insertion edge 2, and the other end edge is bent inward and further extended outward to provide an insertion groove 3. , the lower edge 4 thereof is further protruded outward to form an extension portion 5. As is clear from the figure, since the extension part 5 has a flat plate-like structure, when the construction boards are connected, for example, the nail head etc. 6 and the insertion edge 2 of the next construction board 1 come into contact with each other. A gap is formed over the entire length of the construction board 1 in the longitudinal direction. Further, in terms of mechanical strength, the extension part 5 was made of a thin iron plate, for example, a plate with a thickness of 0.27 mm, and was very weak in shearing and tension. In other words, since the nail holes are provided in the flat plate, the stress concentration is maximum at that part, resulting in disadvantages such as easy breakage.
Furthermore, since the connecting portion is a contact between smooth surfaces, a large frictional force acts on the smooth surfaces during wall formation, resulting in a disadvantage that the wall is difficult to slip and takes a long time to construct. Also,
Such connections often come apart due to slight external forces, especially external forces such as wind applied from a direction perpendicular to the wall. The present invention eliminates these drawbacks, and also proposes a construction board that has improved surface design and simple construction, has fewer gaps in the joints, and has strengthened the mechanical strength of the joints. DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a construction board according to the present invention will be described in detail below with reference to the drawings. Note that parts corresponding to those in FIG. 1 are given the same reference numerals. FIG. 2 is a perspective view showing an example of a construction board 1 according to the present invention, in which 1 is a construction board made of a thin metal plate with a flat channel-shaped cross section, 1a a decorative surface, and 2 a differential construction board. 3 is the insertion groove, 4 is the lower edge, and 5 is the extension part. In particular, in this architectural board 1 , a random uneven pattern 7 is formed on at least the decorative surface 1a on the front side and the extension part 5,
This improves the mechanical strength of the extension part 5 and the construction board 1.
This is provided to prevent the fixing device 6, for example, the nail head 6a, from having a negative effect on the connection structure during connection. That is, the random uneven pattern 7 is obtained by randomly distributing concave portions 8 and convex portions 9 on the extension portion 5 by embossing.
As a specific example, the concave-convex pattern 7 is one in which concave portions 8 and convex portions 9 exist independently, are continuous, or are mixed. The depth of this concave portion 8 is about 0.1 to 2 mm, and its size is arbitrary. Third
The figure is a longitudinal sectional view showing a part of a wall formed by attaching this construction board, in which the construction board 1 is fixed to the rim 10 via nails 6, and then the construction board 1
The insertion edge 2 of the construction board 1 is inserted into the insertion groove 3 of the building board 1 for connection. As is clear from the figure, the nail head 6a of the nail 6 is completely buried in the recessed part 8, and
A gap is not formed over the entire length of the contact portion between the insertion edge 2 of the construction board 1 and the extension part 5 of the building board 1 . In addition, as the difference in height between the uneven portions is similar to the thickness of the plate, work hardening during embossing is also added, making the mechanical strength higher than that of a flat plate. What has been described above is only one embodiment of the present invention.
It can also be formed into the shapes shown in FIGS. 4a, b, and c. That is, figure a shows the building board 1 with the edge of the extension part 5 bent upward, figure b shows the building board 1 bent downward, and figure c shows the uneven pattern 7 created by uneven processing on the entire surface of the building board 1 . This is a construction board 1 formed with. As described above, the architectural board according to the present invention has the feature that there is no gap formed by the fixing tool in the architectural board connection structure, and the surface on which the architectural wall is formed can be finished flush. It also has the feature of significantly increasing the mechanical strength of the decorative surfaces and extensions of architectural boards made of thin metal plates. Furthermore, the uneven pattern formed on the decorative surface has the advantage of improving the surface design of the decorative surface.
【図面の簡単な説明】[Brief explanation of the drawing]
第１図は従来から使用されている建築用板の連
結部を示す斜視図、第２図、第３図は本考案に係
る建築用板の一実施例を示す斜視図と連結構造を
示す縦断面図、第４図ａ〜ｃはその他の実施例を
示す説明図である。
１……建築用板、２……差込縁、５……延長
部、７……凹凸模様、８……凹状部、９……凸状
部。
FIG. 1 is a perspective view showing a connecting part of a conventionally used building board, and FIGS. 2 and 3 are a perspective view showing an embodiment of a building board according to the present invention, and a longitudinal section showing the connecting structure. The top view and FIGS. 4a to 4c are explanatory diagrams showing other embodiments. DESCRIPTION OF SYMBOLS 1... Architectural board, 2... Insert edge, 5... Extension part, 7... Uneven pattern, 8... Concave part, 9... Convex part.