JP5657994B2

JP5657994B2 - Metal building board and method for manufacturing metal building board

Info

Publication number: JP5657994B2
Application number: JP2010237934A
Authority: JP
Inventors: 茶木　康友; 康友茶木; 光彦矢崎; 春樹古河
Original assignee: Nippon Steel Coated Sheet Corp
Current assignee: Nippon Steel Coated Sheet Corp
Priority date: 2010-10-22
Filing date: 2010-10-22
Publication date: 2015-01-21
Anticipated expiration: 2030-10-22
Also published as: JP2012092498A

Description

本発明は、金属製の建築用板及びその製造方法、殊に、サンドイッチパネル等の表面板に好適に用いられる金属製の建築用板及びその製造方法に関するものである。 The present invention relates to a metal building board and a method for producing the same, and more particularly to a metal building board suitably used for a surface plate such as a sandwich panel and the method for producing the same.

従来から、建物等の構造物の壁はＡＬＣや押出成型セメント板、サイディング材等の窯業系材料や、金属製のサンドイッチパネル等で構成されている。該サンドイッチパネルは、石膏ボードやロックウール等の芯材を、表裏各一枚の金属製の表面板で挟んで構成されている。そして、表面板は、パネルの外装面や内装面を表面に有した本体と、本体に略直交し且つ本体の外周から裏面側に延設された側面部と、を有している（例えば、特許文献１等参照）。 Conventionally, the walls of structures such as buildings have been composed of ceramic materials such as ALC, extruded cement boards, siding materials, metal sandwich panels, and the like. The sandwich panel is configured by sandwiching a core material such as gypsum board or rock wool between front and back metal surface plates. And the surface plate has a main body having an exterior surface and an interior surface of the panel on the surface, and a side surface portion that is substantially orthogonal to the main body and extends from the outer periphery of the main body to the back surface side (for example, (See Patent Document 1).

このような表面板は本体の上下端或いは左右端に側面部が延設されており、側面部は芯材の上下或いは左右の端面を夫々個別に覆い、該端面から本体表面に付着した水分や火災時の火炎がサンドイッチパネルの内部（芯材）に侵入することを防止している。 Such a surface plate has side portions extending at the upper and lower ends or left and right ends of the main body, and the side portions individually cover the upper and lower or left and right end surfaces of the core member, respectively. This prevents flames from entering the inside of the sandwich panel (core material).

特開２０００−６４４９６号公報JP 2000-64496 A

しかしながら、従来の表面板では、各側面部の端部が突き合わされる角部において、互いの端部を当接しただけであり、該端部の当接部位から水分や火炎が建築用板の裏面側（サンドイッチパネルの芯材側）に侵入するという問題がある。 However, in the conventional surface plate, the end portions of the side surface portions are just brought into contact with each other at the corner portions, and moisture and flames from the contact portions of the end portions are not in the building plate. There is a problem of entering the back side (the core side of the sandwich panel).

そこで、この事情に鑑み、防火性能及び防水性能を向上させた金属製の建築用板及びその製造方法を提供することを課題とした。 Then, in view of this situation, an object of the present invention is to provide a metal building board having improved fireproof performance and waterproof performance and a method for manufacturing the same.

この課題を解決するために、本発明の金属製の建築用板は、矩形状の本体５の外周辺７から裏面側に四つの側面部１０を延設すると共に、隣接する２つの前記側面部１０の端部を連続部２６を介して一体とし、前記本体５の全周を囲むように各側面部１０に突条部１６を設け、各突条部１６は、断面コ字状であり、隣接する２つの前記突条部１６のうち、一方の前記突条部１６の長手方向の端部には、他方の前記突条部１６の長手方向の端部開口を閉塞する突端部２１が突出させて設けられていることを特徴としている。このような特徴を有することで、建築用板の裏面側への水分や火災時の火炎等の侵入を抑制することができる。 In order to solve this problem, the metal building board of the present invention has four side surface portions 10 extending from the outer periphery 7 of the rectangular body 5 to the back surface side, and two adjacent side surface portions. 10 end of an integral over a continuous portion 26, a collision ridges 16 on each side portion 10 so as to surround the entire circumference of the main body 5 is provided, the protrusions 16 is a U-shaped cross section, Of the two adjacent protrusions 16, a protrusion 21 that closes the opening in the longitudinal direction of the other protrusion 16 protrudes at the end of the protrusion 16 in the longitudinal direction. It is characterized by being provided . By having such a feature, it is possible to suppress intrusion of moisture or a flame at the time of a fire into the back side of the building board.

また、本発明の金属製の建築用板の製造方法は、前述の金属製の建築用板を製造する方法であって、金属板３０の四隅３１を切り欠いて前記本体５となる部位の外周に四つの区画部３３を形成するプレカット工程と、前記区画部３３に前記突条部１６及び前記突端部２１を形成する突条成形工程と、前記区画部３３を前記本体５の裏面側に屈曲させて前記側面部１０を形成する側面曲げ工程と、前記金属板３０に絞り加工を行い前記連続部２６を形成する絞り工程と、を有することを特徴としている。このような特徴を有することで、隣接する２つの側面部１０の端部を一体にした連続部２６を容易に形成して、建築用板を製造することができる。 Moreover, the manufacturing method of the metal building board of the present invention is a method of manufacturing the above-described metal building board, and the outer periphery of the portion that becomes the main body 5 by cutting out the four corners 31 of the metal plate 30. A pre-cut step for forming four partition portions 33, a ridge forming step for forming the ridge portions 16 and the protruding end portions 21 in the partition portion 33, and bending the partition portions 33 toward the back side of the main body 5. It is characterized by having a side bending step of forming the side portion 10 by, and a drawing step of forming the continuous section 26 performs drawing processing on the metal plate 30. By having such a characteristic, the continuous part 26 which united the edge part of two adjacent side parts 10 can be formed easily, and a building board can be manufactured.

このような製造方法として、前記区画部３３を屈曲させる側面曲げ工程と前記絞り工程を並行して行うことで、絞り工程での皺等の不具合の発生を抑制して連続部２６を形成することができる。
また、本発明の金属製の建築用板の製造方法は、矩形状の本体５の外周辺７から裏面側に四つの側面部１０を延設すると共に、隣接する２つの前記側面部１０の端部を連続部２６を介して一体とし、前記本体５の全周を囲むように各側面部１０に突条部１６を設けてなる金属製の建築用板を製造する方法であって、金属板３０の四隅３１を切り欠いて前記本体５となる部位の外周に四つの区画部３３を形成するプレカット工程と、前記区画部３３に前記突条部１６を形成する突条成形工程と、前記区画部３３を前記本体５の裏面側に屈曲させて前記側面部１０を形成する側面曲げ工程と、前記金属板３０に絞り加工を行い前記連続部２６を形成する絞り工程と、を有し、前記区画部３３を屈曲させる側面曲げ工程と前記絞り工程を並行して行うことを特徴としている。このような特徴を有することで、隣接する２つの側面部１０の端部を一体にした連続部２６を容易に形成して、建築用板を製造することができる。また、絞り工程での皺等の不具合の発生を抑制して連続部２６を形成することができる。 As such a manufacturing method, by performing the side bending process for bending the partition part 33 and the drawing process in parallel, the occurrence of defects such as wrinkles in the drawing process is suppressed and the continuous part 26 is formed. Can do.
Further, in the method for manufacturing a metal building board according to the present invention, four side surface portions 10 are extended from the outer periphery 7 of the rectangular main body 5 to the back surface side, and the ends of the two adjacent side surface portions 10 are extended. A method of manufacturing a metal building plate, in which a portion is integrated through a continuous portion 26 and a ridge portion 16 is provided on each side surface portion 10 so as to surround the entire circumference of the main body 5. A pre-cutting step of cutting four corners 31 of 30 to form the four partition portions 33 on the outer periphery of the portion to be the main body 5, a ridge forming step of forming the ridge portions 16 in the partition portion 33, and the partition A side bending step of bending the portion 33 toward the back side of the main body 5 to form the side portion 10, and a drawing step of drawing the metal plate 30 to form the continuous portion 26, The side bending process for bending the partition 33 and the drawing process are performed in parallel. It is characterized in that. By having such a characteristic, the continuous part 26 which united the edge part of two adjacent side parts 10 can be formed easily, and a building board can be manufactured. Further, the continuous portion 26 can be formed while suppressing the occurrence of defects such as wrinkles in the drawing process.

更に、このような製造方法として、前記区画部３３のうち、平行に並ぶ一方の対をなす区画部３３を屈曲させる第１側面曲げ工程をロール成形加工で行い、他方の対をなす区画部３３を屈曲させる第２側面曲げ工程をプレス成形加工で行い、前記第１側面曲げ工程後に、前記第２側面曲げ工程と前記絞り工程を並行して行うことで、絞り工程での皺や疵や反り等の不具合の発生をより抑制することができる。 Further, as such a manufacturing method, a first side bending process of bending one of the partitioning portions 33 that form one pair arranged in parallel is performed by roll forming, and the other partitioning portion 33 that forms the other pair. The second side surface bending step of bending is performed by press forming, and after the first side surface bending step, the second side surface bending step and the drawing step are performed in parallel, so that wrinkles, wrinkles and warpage in the drawing step are performed. The occurrence of problems such as these can be further suppressed.

また更に、このような製造方法として、前記絞り工程が、前記連続部２６となる部位の前記一方の対をなす区画部３３側の部分に第１曲面を形成する第１加工処理工程と、前記連続部２６となる部位の他方の対をなす区画部３３側の部分に前記第１曲面と対をなす第２曲面を形成する第２加工処理工程と、前記第１加工処理工程及び前記第２加工処理工程後に、前記第１曲面及び前記第２曲面に絞り加工を行う第３加工処理工程と、を有することで、プレス成形加工後の第１部分とロール成形加工後の第２部分を略同形に整えた後、絞り加工を行うため、絞り工程での皺等の不具合の発生をより抑制することができる。 Still further, as such a manufacturing method, the drawing step includes a first processing step of forming a first curved surface in a portion on the partition portion 33 side forming the one pair of the portions to be the continuous portion 26; A second processing step of forming a second curved surface that forms a pair with the first curved surface in a portion on the partitioning portion 33 side that forms the other pair of parts that become the continuous portion 26; the first processing processing step; By having a third processing step for drawing the first curved surface and the second curved surface after the processing step, the first part after press forming and the second part after roll forming are substantially omitted. Since the drawing process is performed after making the same shape, the occurrence of defects such as wrinkles in the drawing process can be further suppressed.

このように、側面部に突条部を設けると共に、両側面部の端部を連続部を介して一体化したことで、突条部や連続部を備えていないものに比べて耐火性能及び防水性能を向上できて、本建築用板をサンドイッチパネルの表面板に好適に利用することができる。 Thus, while providing a ridge part in a side part, and integrating the edge part of both side parts via a continuous part, fireproof performance and waterproofing performance compared with what does not have a ridge part and a continuous part. Thus, the building board can be suitably used as a surface panel of a sandwich panel.

本発明の金属製の建築用板の実施形態の一例の（ａ）平面図と（ｂ）Ｃ−Ｃ断面図と（ｃ）Ｂ−Ｂ断面図と（ｄ）角部の斜視図である。It is (a) top view, (b) CC sectional view, (c) BB sectional view, and (d) corner part perspective view of an example of embodiment of the metal construction board of the present invention. 同上の建築用板を表面板に用いたサンドイッチパネルの（ａ）斜視図と（ｂ）Ｄ−Ｄ断面図である。It is (a) perspective view and (b) DD sectional drawing of the sandwich panel which used the board for building same as the above as a surface board. 同上の本体表面の断面図である。It is sectional drawing of the main body surface same as the above. 同上の本体表面に凹凸を有した例の本体表面の断面図であり、（ａ）が波形のものであり、（ｂ）がエンボス加工を施したものである。It is sectional drawing of the main body surface of an example which has an unevenness | corrugation in the main body surface same as the above, (a) is a waveform thing, (b) gives embossing. 同上の変形例の角部の斜視図である。It is a perspective view of the corner | angular part of a modification same as the above. 同上の他例の角部の斜視図である。It is a perspective view of the corner | angular part of the other example same as the above. 図１の建築用板の製造工程の一例のフローチャートである。It is a flowchart of an example of the manufacturing process of the board for building of FIG. 第１工程後の金属板の（ａ）全体の平面図と（ｂ）切り欠いた部位の周辺を拡大した平面図である。It is the (a) top view of the metal plate after a 1st process, and (b) the top view to which the periphery of the notch part was expanded. 第２工程後の角部の斜視図である。It is a perspective view of the corner | angular part after a 2nd process. 第３工程の第１加工処理後の角部の（ａ）突条部を省略した平面図と（ｂ）斜視図である。It is the top view and (b) perspective view which abbreviate | omitted the (a) protrusion part of the corner | angular part after the 1st process process of a 3rd process. 第２加工処理後の角部の（ａ）突条部を省略した平面図と（ｂ）斜視図である。It is the top view and (b) perspective view which abbreviate | omitted the (a) protrusion part of the corner | angular part after a 2nd processing process. 第３加工処理後の角部の（ａ）突条部を省略した平面図と（ｂ）斜視図である。It is the top view and (b) perspective view which abbreviate | omitted the (a) protrusion part of the corner | angular part after a 3rd process process. 製造方法の変形例の第４工程後の角部の（ａ）平面図と（ｂ）斜視図である。It is the (a) top view and (b) perspective view of the corner | angular part after the 4th process of the modification of a manufacturing method.

以下、実施形態の一例を図面に基づいて説明する。 Hereinafter, an example of an embodiment will be described with reference to the drawings.

本実施形態における金属製の建築用板は、例えば、図１や図２に示すように、構造物の壁等を形成するサンドイッチパネル１の外装面や内装面を形成する表面板４として用いられている。該サンドイッチパネル１は、外装面と内装面の一方の面を形成する一方の表面板４と他方の面を形成する他方の表面板７０の間に、ロックウールやグラスウール或いは発泡合成樹脂等の芯材２や石膏ボードや木材等の補強材３を介在させて構成されている。以下、芯材２や補強材３をサンドイッチパネル１の内部とし、表面板４の外装面と内装面のいずれかになる面を夫々表面６とし、該表面板４の表面６の反対側の面である芯材２等の内部側を向く面を夫々裏面とする。 The metal building plate in the present embodiment is used as a surface plate 4 that forms an exterior surface or an interior surface of a sandwich panel 1 that forms a wall of a structure, for example, as shown in FIGS. 1 and 2. ing. The sandwich panel 1 includes a core made of rock wool, glass wool, foamed synthetic resin or the like between one surface plate 4 forming one surface of the exterior surface and the interior surface and the other surface plate 70 forming the other surface. It is configured by interposing a reinforcing material 3 such as a material 2, a plaster board or wood. Hereinafter, the core material 2 and the reinforcing material 3 are the inside of the sandwich panel 1, and the surface 6 that is either the exterior surface or the interior surface of the surface plate 4 is the surface 6, and the surface opposite to the surface 6 of the surface plate 4. The surfaces facing the inner side of the core material 2 etc. are the back surfaces.

本例の建築用板である表面板４は、図１に示すように、一方の板面が表面６となる略長方形状の本体５と、本体５の各外周辺７から夫々裏面側に延設された四つの側面部１０と、からなり、側面部１０は本体５の板面に対して略直交して板面を有している。そして、本体５は長辺の寸法Ｌ１が約３００ｍｍ〜１００００ｍｍ程度であり、短辺の寸法Ｌ２が約２８０ｍｍ〜１１８０ｍｍ（働き幅Ｌ３：約３００ｍｍ〜１２００ｍｍ）程度である。なお、本例では長辺の寸法Ｌ１が約８００ｍｍで短辺の寸法Ｌ２が約５８０ｍｍ（働き幅Ｌ３が約６００ｍｍ）となっているが、これら例示の数値のみには限らない。 As shown in FIG. 1, the surface plate 4 that is the building board of this example extends from the substantially rectangular main body 5 whose one plate surface is the surface 6 and the outer periphery 7 of the main body 5 to the back side. The side surface portion 10 has a plate surface substantially orthogonal to the plate surface of the main body 5. The main body 5 has a long side dimension L1 of about 300 mm to 10000 mm, and a short side dimension L2 of about 280 mm to 1180 mm (working width L3: about 300 mm to 1200 mm). In this example, the long side dimension L1 is about 800 mm and the short side dimension L2 is about 580 mm (the working width L3 is about 600 mm). However, the numerical values are not limited to these examples.

以下、各側面部１０を本体５から延設した方向を延設方向Ａとすると共に、側面部１０の延設方向Ａの寸法を幅寸法とし、各側面部１０の幅寸法に夫々直交する長辺方向Ｇ或いは短辺方向Ｆの寸法を辺寸法とする。そして、本体５の長い側の外周辺７（長方形の長辺９）から延設された側面部１０を長側面部１２とし、短い側の外周辺７（長方形の短辺８）から延設された側面部１０を短側面部１１として区別するが、特に区別しない際には単に、側面部１０とする。 In the following, the direction in which each side surface portion 10 extends from the main body 5 is defined as an extending direction A, the dimension in the extending direction A of the side surface portion 10 is defined as a width dimension, and each length is orthogonal to the width dimension of each side surface portion 10. Let the dimension of the side direction G or the short side direction F be a side dimension. And the side part 10 extended from the outer periphery 7 (rectangular long side 9) of the long side of the main body 5 is made into the long side part 12, and it is extended from the outer periphery 7 (rectangular short side 8) of the short side. The side surface portion 10 is distinguished as the short side surface portion 11, but is simply referred to as the side surface portion 10 when not particularly distinguished.

側面部１０は夫々パネル内部から離れる向きに突出した突条部１６が突設されている。突条部１６は本体５から延設方向Ａに所定の距離（所定の幅寸法）離れた位置に、略同じ幅寸法で且つ略同形状で各側面部１０から突出している。そして、突条部１６は夫々突設された側面部１０の辺寸法の略全体に亘って形成されており、各突条部１６は略同形のパネル内部側に開口した断面コ字状となっている。なお、以下の説明において、長側面部１２に設けられた突条部１６を長突条部１８とし、短側面部１１に設けられた突条部１６を短突条部１７として区別するが、特に区別しない際には単に、突条部１６とする。 The side surface portion 10 is provided with a protruding portion 16 that protrudes away from the inside of the panel. The protrusions 16 protrude from the side surfaces 10 with substantially the same width and shape at a position away from the main body 5 in the extending direction A by a predetermined distance (predetermined width). The ridges 16 are formed over substantially the entire side dimension of the side surface 10 that is provided in a projecting manner, and each ridge 16 has a U-shaped cross-section that opens to the inside of the substantially identical panel. ing. In the following description, the ridge 16 provided on the long side surface 12 is distinguished as the long ridge 18 and the ridge 16 provided on the short side 11 is distinguished as the short ridge 17. When not particularly distinguished, the ridge portion 16 is simply used.

詳しくは、上記突条部１６のうち、短突条部１７は、短辺方向Ｆに視て断面コ字状で短辺方向Ｆに沿って長い突部となっており、短辺方向Ｆの寸法は短側面部１１の辺寸法と略同寸となっている。そして、短突条部１７はコ字の平行した二辺の端部で形成される開口がパネル内部側を向いており、残りの一辺が短側面部１１から突出した先端側に位置している。そのため、短突条部１７は突出先端が短側面部１１と略平行な端面１９となっている。更に、短突条部１７は短辺方向Ｆの両端に夫々端部開口２０を有している。 Specifically, among the protrusions 16, the short protrusion 17 has a U-shaped cross section when viewed in the short side direction F and is a long protrusion along the short side F. The dimensions are substantially the same as the side dimensions of the short side surface portion 11. The short protrusion 17 has an opening formed by two parallel ends of the U-shape facing the inside of the panel, and the other side is located on the tip side protruding from the short side surface 11. . Therefore, the short ridge portion 17 has an end surface 19 whose protruding tip is substantially parallel to the short side surface portion 11. Further, the short protrusions 17 have end openings 20 at both ends in the short side direction F, respectively.

一方、長突条部１８は、長辺方向Ｇに視て断面コ字状で長辺方向Ｇに沿って長い突部となっている。そして、長突条部１８はコ字の平行した二辺の端部で形成される開口がパネル内部側を向いており、残りの一辺が長側面部１２から突出した先端側に位置している。そのため、長突条部１８は突出先端が長側面部１２と略平行な端面１９となっている。更に、長突条部１８は長辺方向Ｇの端部に、長突条部１８と同形のコ字状で長側面部１２より長辺方向Ｇに突出した突端部２１を備えており、長辺方向Ｇの寸法が長側面部１２の辺寸法より長くなっている。 On the other hand, the long protrusion 18 is a long protrusion along the long side direction G having a U-shaped cross section when viewed in the long side direction G. The long protrusion 18 has an opening formed by two parallel ends of the U-shape facing the inside of the panel, and the other side is located on the tip side protruding from the long side surface 12. . Therefore, the long ridge portion 18 has an end surface 19 whose protruding tip is substantially parallel to the long side surface portion 12. Further, the long ridge portion 18 is provided with a ridge end portion 21 that protrudes in the long side direction G from the long side surface portion 12 at the end portion in the long side direction G and has the same U shape as the long ridge portion 18. The dimension in the side direction G is longer than the side dimension of the long side surface portion 12.

該突端部２１は長辺方向Ｇの先端に矩形状の閉塞片２３を備えており、閉塞片２３は突端部２１の上記先端から短突条部１７側に曲げられており、突端部２１は夫々長辺方向Ｇの端部開口２２が閉塞片２３によって閉塞されている。そして、突端部２１の長辺方向Ｇに沿った二辺と、閉塞片２３の短突条部１７を向く一辺は、短突条部１７の短辺方向Ｆのコ字状に並ぶ端辺に、夫々一辺ずつ当接されている。 The protruding end 21 is provided with a rectangular closing piece 23 at the tip in the long side direction G. The closing piece 23 is bent from the tip of the protruding end 21 toward the short protrusion 17, and the protruding end 21 is Each end opening 22 in the long side direction G is closed by a closing piece 23. And the two sides along the long side direction G of the projecting end portion 21 and the one side facing the short projecting portion 17 of the closing piece 23 are the end sides aligned in the U-shape of the short projecting portion 17 in the short side direction F. , Each one is in contact with each other.

そのため、各突条部１６はコ字の開口がパネルの内部側に位置すると共に、短突条部１７の各端部開口２０が長突条部１８の突端部２１及び閉塞片２３によって閉塞されており、いずれの突条部１６も開口がパネルの外側に露出しない形状となっている。すなわち、突条部１６は四つの側面部１０に沿って本体５の全周に亘って設けられており、建築用板は、本体５より一回り大きい長方形の枠状に突条を、本体５から所定の距離離れた位置に備えたものとなっている。 Therefore, each protrusion 16 has a U-shaped opening located on the inner side of the panel, and each end opening 20 of the short protrusion 17 is closed by the protrusion 21 and the closing piece 23 of the long protrusion 18. Each of the protrusions 16 has a shape in which the opening is not exposed to the outside of the panel. That is, the ridges 16 are provided along the four side surfaces 10 over the entire circumference of the main body 5, and the building board is formed in a rectangular frame shape that is slightly larger than the main body 5. Is provided at a position that is a predetermined distance away from.

また、長側面部１２は、長突条部１８によって、本体５の長辺９と長突条部１８の間の面である前部２４と、長突条部１８より延設方向Ａの先端側（背向した他方の表面板７０側）の面である後部２５と、に区画されている。 Further, the long side surface portion 12 is formed by the long ridge portion 18, the front portion 24 which is a surface between the long side 9 of the main body 5 and the long ridge portion 18, and the distal end in the extending direction A from the long ridge portion 18. And a rear portion 25 which is a surface on the side (the other surface plate 70 side facing back).

なお、本例では、長側面部１２が前部２４と後部２５を備え、短側面部１１が前部２４のみを備えた構成となっているが、長側面部１２が後部２５を備えず短側面部１１が前部２４と後部２５を備えるものや、両側面部１０とも後部２５を備えない或いは両側面部１０とも後部２５を備えるもの等であってもよい。 In this example, the long side surface portion 12 includes the front portion 24 and the rear portion 25 and the short side surface portion 11 includes only the front portion 24, but the long side surface portion 12 does not include the rear portion 25 and is short. The side surface portion 11 may include the front portion 24 and the rear portion 25, the side surface portion 10 may not include the rear portion 25, or the both side surface portions 10 may include the rear portion 25.

また、本体５は各角が夫々円弧状となっている。そのため、側面部１０の前部２４側における側面部１０の辺方向の端部どうしが突き合わされる角部１５は、両側面部１０を本体５の角に沿って一体に連続させた連続部２６と、両端部を略直角に当接させた当接部２７と、連続部２６と当接部２７を分割するスリット部２８と、からなっている。 Further, the main body 5 has an arc shape at each corner. Therefore, the corner portion 15 where the end portions in the side direction of the side surface portion 10 on the front portion 24 side of the side surface portion 10 abut each other is a continuous portion 26 in which both side surface portions 10 are integrally continued along the corner of the main body 5. The contact portion 27 has both end portions contacted at substantially right angles, and the continuous portion 26 and the slit portion 28 that divides the contact portion 27.

スリット部２８は延設方向Ａにおいて、連続部２６と当接部２７の間に位置しており、夫々側面部１０の端部から中央側に向けてＵ字状に切り欠いた切欠き部２９からなり、切欠き部２９の開口が互いに付き合わされて連通している。詳しくは、長側面部１２の切欠き部２９は短辺方向Ｆに板面を貫通すると共に、長側面部１２の長辺方向Ｇの端部１４から長辺方向Ｇに沿って辺寸法の中点側に向けて所定の寸法で略Ｕ字状に切り欠かれている。そして、短側面部１１の切欠き部２９は長辺方向Ｇに板面を貫通すると共に、短側面部１１の短辺方向Ｆの端部１３から短辺方向Ｆに沿って辺寸法の中点側に向けて所定の寸法で略Ｕ字状に切り欠かれている。更に、該切欠き部２９からなるスリット部２８は、パネル内部側からシート状の止水材（特に図示しない）が取り付けられており、スリット部２８のパネル内部側への開口が封止されている。なお、切欠き部２９はＵ字状に限らず、コ字状のものや、楔状のもの等であってもよく、ましてや各切欠き部２９の形状が短側面部１１側と長側面部１２側で夫々異なるものであってもよい。もちろん、シート状の止水材に限らず、シーリング材等のシール部材でスリット部２８を封止したものであればよい。 The slit part 28 is located between the continuous part 26 and the contact part 27 in the extending direction A, and is a notch part 29 that is notched in a U shape from the end of the side part 10 toward the center. The openings of the notch 29 are connected to each other and communicated with each other. Specifically, the cutout portion 29 of the long side surface portion 12 penetrates the plate surface in the short side direction F and has a medium side dimension from the end portion 14 in the long side direction G of the long side surface portion 12 along the long side direction G. It is cut out in a substantially U shape with a predetermined dimension toward the point side. The notch portion 29 of the short side surface portion 11 penetrates the plate surface in the long side direction G and is the midpoint of the side dimension along the short side direction F from the end portion 13 in the short side direction F of the short side surface portion 11. It is cut out in a substantially U shape with a predetermined dimension toward the side. Further, the slit portion 28 composed of the notch portion 29 is attached with a sheet-like water stop material (not shown) from the inside of the panel, and the opening of the slit portion 28 to the inside of the panel is sealed. Yes. The notch 29 is not limited to a U-shape, and may be a U-shape, a wedge-like shape, or the like. Furthermore, the shape of each notch 29 is the short side surface portion 11 side and the long side surface portion 12. Each may be different on the side. Of course, it is not limited to a sheet-like water-stopping material, and any material may be used as long as the slit portion 28 is sealed with a sealing member such as a sealing material.

また、連続部２６は略均一な幅寸法を有する板状で且つ短側面部１１と長側面部１２を滑らかな曲線で繋いだ円弧状の曲面となっており、短側面部１１の端部１３と長側面部１２の端部１４を区別できない一体で連続させたものとなっている。 The continuous portion 26 is a plate having a substantially uniform width dimension, and is an arcuate curved surface connecting the short side surface portion 11 and the long side surface portion 12 with a smooth curve, and the end portion 13 of the short side surface portion 11 is formed. And the end portion 14 of the long side surface portion 12 are integrated and cannot be distinguished.

一方、スリット部２８によって連続部２６から分割された当接部２７は、短側面部１１の端部１３と長側面部１２の端部１４を互いにＬ字状に突き合わせて形成されている。そのため、当接部２７は、区別のない一体の連続部２６と異なり、二つの部材を突き合わせて組み合わせた構成となっている。詳しくは、Ｌ字の一方の辺が短側面部１１の端部１３で構成されており、他方の辺が長側面部１２の端部１４で構成されており、一方の側面部１０のパネル内部側の板面に他方の側面部１０の辺方向の先端（端辺）が略直交して当接されている。なお、当接部２７は、二つの部材を接触させて組み合わせたものが好ましい。 On the other hand, the contact portion 27 divided from the continuous portion 26 by the slit portion 28 is formed by abutting the end portion 13 of the short side surface portion 11 and the end portion 14 of the long side surface portion 12 in an L shape. Therefore, the contact part 27 has a configuration in which two members are abutted and combined, unlike the integrated continuous part 26 which is not distinguished. Specifically, one side of the L-shape is configured by the end portion 13 of the short side surface portion 11, and the other side is configured by the end portion 14 of the long side surface portion 12. The side end of the other side surface 10 is in contact with the plate surface on the side substantially orthogonally. The contact portion 27 is preferably a combination of two members brought into contact with each other.

また、側面部１０の前部２４はシーリング材等のシール部材（特に図示しない）が取り付けられるシール部となっており、シール部材を配置することで、表面６側から内部やサンドイッチパネル１の他方の表面側（背向した他方の表面板７０側）への浸水を防止することができる。 Further, the front portion 24 of the side surface portion 10 is a seal portion to which a seal member (not shown) such as a sealing material is attached. By disposing the seal member, the inside or the other side of the sandwich panel 1 is arranged from the surface 6 side. It is possible to prevent water from entering the surface side (the other surface plate 70 side facing away).

このように、二側面部１０の突き合わされた端部に一体に繋がった連続部２６を形成したことで、角部１５の側面部１０と本体５の延設部位からパネル内部への浸水を抑制することができる。そのため、シーリング材等の追加部材の付け忘れや充填不足等の取付不備や経年劣化を生じて角部１５の本体５側の部位が外部に露出しても、連続部２６によって裏面側への浸水を抑制でき、防水性能及び防水性能の耐久性を向上させることができる。 In this way, by forming the continuous portion 26 integrally connected to the abutted end portions of the two side surface portions 10, water intrusion from the side surface portion 10 of the corner portion 15 and the extended portion of the main body 5 to the inside of the panel is suppressed. can do. For this reason, even if a part of the corner 15 on the main body 5 side is exposed to the outside due to inadequate installation such as forgetting to add an additional member such as a sealing material or insufficient filling, or deterioration due to aging, the continuous part 26 is inundated to the back side. Can be suppressed, and the waterproof performance and the durability of the waterproof performance can be improved.

また、建築用板をサンドイッチパネル１の表面板４に用いることで、シーリング材の切れ等でシール部を水が越えた際に、枠状に設けた突条部１６で表面側に水を返すことができて、サンドイッチパネル１の防水性能を向上させることができる。そして、火災時等では、突条部１６がサンドイッチパネル１の他方の表面側への火災時の火炎等の進行を抑制する抑制部となり、突条部１６を備えないサンドイッチパネルに比べて、火災に対する耐久性能（耐火性能）を向上することができる。そして、角部１５が二側面部１０の端部を一体化して連続させた連続部２６を備えるため、火災時の火炎等が角部１５からパネル内部に侵入し難くできて、連続部２６を備えていないサンドイッチパネルに比べて、角部１５の耐火性能も向上することができる。そのため、本建築用板を表面板４に用いることでサンドイッチパネル１を耐火パネルとして良好に用いることができる。 Further, by using the building board for the surface plate 4 of the sandwich panel 1, when water exceeds the seal portion due to cutting of the sealing material or the like, the water is returned to the surface side by the ridge portion 16 provided in a frame shape. The waterproof performance of the sandwich panel 1 can be improved. In the event of a fire, the ridge portion 16 serves as a suppression portion that suppresses the progression of a flame or the like during a fire to the other surface side of the sandwich panel 1, and the fire is less than a sandwich panel that does not include the ridge portion 16. It is possible to improve the durability performance (fire resistance performance) against. And since the corner | angular part 15 is equipped with the continuous part 26 which integrated and continued the edge part of the two side part 10, the flame at the time of a fire etc. cannot penetrate | invade into a panel from the corner | angular part 15 easily, Compared to a sandwich panel that is not provided, the fire resistance of the corner 15 can also be improved. Therefore, the sandwich panel 1 can be satisfactorily used as a fire-resistant panel by using the building board as the surface plate 4.

また、本体５の表面６は、図３に示すように、凹凸の無い平滑面に形成されたものが好ましいが、図４（ａ）に示すように断面略波形に成形されたものや、図４（ｂ）に示すようにエンボス加工を施したもの等の表面に凹凸を有したものであってもよい。 Further, the surface 6 of the main body 5 is preferably formed on a smooth surface without unevenness as shown in FIG. 3, but the surface 6 is formed into a substantially corrugated cross section as shown in FIG. As shown in 4 (b), the surface may be uneven such as embossed.

なお、図５に示すように、長突条部１８が突端部２１に閉塞片２３を備えないものであってもよい。このものでは、突端部２１の端部開口２２に内部側からシート状の止水材等（特に図示しない）を取り付けて、突端部２１の端部開口２２を封止してシールすることが好ましい。更に、閉塞片２３を備えない突端部２１を長突条部１８に設けて閉塞片２３を短突条部１７に設けたものや、突端部２１を短突条部１７に設けたもの等であってもよい。ましてや、突端部２１を短突条部１７と長突条部１８で二分割して、両突条部１６に夫々設けた部位を組み合わせて突端部２１を構成したもの等であってもよい。また、本体５の角を、図６に示すように、略直角形状として連続部２６が当接部２７と略同形の平面視Ｌ字形状のものとしてもよい。 As shown in FIG. 5, the long protrusion 18 may not include the closing piece 23 at the protrusion 21. In this case, it is preferable to attach a sheet-like water-stopping material or the like (not shown in particular) from the inside to the end opening 22 of the protruding end portion 21 and seal and seal the end opening 22 of the protruding end portion 21. . Further, a protrusion 21 not provided with the closing piece 23 is provided on the long protrusion 18 and the closing piece 23 is provided on the short protrusion 17, or a protrusion 21 is provided on the short protrusion 17. There may be. In addition, the protrusion 21 may be divided into two by the short protrusion 17 and the long protrusion 18 and the protrusions 21 may be configured by combining the portions provided on both protrusions 16, respectively. Further, as shown in FIG. 6, the corners of the main body 5 may have a substantially right-angled shape, and the continuous portion 26 may have an L shape in plan view that is substantially the same shape as the contact portion 27.

以下、上記建築用板の製造方法を説明する。なお、該製造方法で製造する建築用板の各部の説明において、前述した内容と重複する説明は省略する。 Hereinafter, the manufacturing method of the said building board is demonstrated. In addition, in description of each part of the board for building manufactured with this manufacturing method, the description which overlaps with the content mentioned above is abbreviate | omitted.

本製造方法は、帯状或いは略矩形状の金属板３０を材料として用いて、本体５となる矩形部３２の外周に、突条部１６を設けた側面部１０を形成すると共に、側面部１０間に端部を一体にした連続部２６を形成して、建築用板を製造する方法である。そして、該製造方法における加工は、大きく分けて、金属板３０の四隅３１を切り欠いて四つの区画部３３を形成するプレカット加工と、向かい合う２対の区画部３３に夫々突条部１６を形成する突条成形加工と、区画部３３を屈曲させて側面部１０を形成する側面曲げ加工と、角部１５となる部分を絞り連続部２６を形成する絞り加工と、当接部２７の形状調整等の後処理を行う仕上げ加工と、の五つの加工を有している。 This manufacturing method uses the metal plate 30 having a strip shape or a substantially rectangular shape as a material to form the side surface portion 10 provided with the protrusions 16 on the outer periphery of the rectangular portion 32 that becomes the main body 5, and between the side surface portions 10. This is a method for manufacturing a building board by forming a continuous portion 26 with end portions integrated with each other. The processing in the manufacturing method is roughly divided into precut processing in which the four corners 31 of the metal plate 30 are cut out to form the four partition portions 33, and the protrusions 16 are formed in the two pairs of partition portions 33 facing each other. Ridge forming processing to be performed, side surface bending processing to bend the partition portion 33 to form the side surface portion 10, drawing processing to form the squeezed continuous portion 26 at the portion that becomes the corner portion 15, and shape adjustment of the contact portion 27 There are five types of processing: finishing processing that performs post-processing such as.

本例では、図７に示すように、プレカット加工を行う第１工程Ｓ１と、長突条部１８成形加工と長側面部１２曲げ加工を行う第２工程Ｓ２と、短突条部１７成形加工と短側面部１１曲げ加工と絞り加工を行う第３工程Ｓ３と、仕上げ加工を行う第４工程Ｓ４と、の工程で製造している。なお、金属板３０は絞り加工等に対する加工優位性から鉄板や鋼板等の鉄系の金属板が好ましいが、皺や疵や反り等の不具合の発生を抑制して各加工を行える材料特性を有するものであれば、アルミニウムやマグネシウムやチタン或いはそれらを主成分とする合金等の鉄より比重の軽い軽金属系の金属板であってもよい。 In this example, as shown in FIG. 7, a first step S1 for performing precut processing, a second step S2 for performing long ridge portion 18 forming processing and long side surface portion 12 bending processing, and short ridge portion 17 forming processing. In addition, the short side surface portion 11 is manufactured in a third step S3 for performing bending and drawing, and a fourth step S4 for performing finishing. The metal plate 30 is preferably an iron-based metal plate such as an iron plate or a steel plate because of its processing advantage over drawing processing, etc., but has material characteristics that can perform each processing while suppressing the occurrence of defects such as wrinkles, wrinkles and warpage. As long as it is a thing, it may be a light metal plate having a lighter specific gravity than iron such as aluminum, magnesium, titanium, or an alloy containing them as a main component.

第１工程Ｓ１は、プレス加工装置で打ち抜く等で金属板３０の四隅３１を略同様の所定形状に切り欠く工程となっている。そして、該加工によって金属板３０は、外周が四つの区画部３３に区画されると共に、切り欠かれた四隅３１に、スリット部２８となる二つの切欠き部２９と、連続部２６となる角延部４２と、突端部２１及び閉塞片２３となる凸部３９と、が形成される。更に、本例では、四隅３１のうち、二箇所を所定形状に切り欠いた後、金属板３０を板面に沿った平面上で略１８０度回転させる等で向きを変え、残りの二箇所を所定形状に切り欠いて、四隅３１を所定形状に加工している。もちろん、四隅３１を同時に切り欠いたり、向きを変えずに二箇所ずつ切り欠いたり、或いは一箇所ずつ切り欠いたりして、四隅３１を所定形状に加工してもよい。 The first step S1 is a step of notching the four corners 31 of the metal plate 30 into substantially the same predetermined shape by punching with a press working device or the like. As a result of the processing, the outer periphery of the metal plate 30 is divided into four partition portions 33, two cutout portions 29 that become the slit portions 28, and corners that become the continuous portions 26 at the cutout four corners 31. The extending part 42 and the convex part 39 which becomes the protruding end part 21 and the closing piece 23 are formed. Furthermore, in this example, after cutting out two places out of the four corners 31 into a predetermined shape, the direction is changed by rotating the metal plate 30 approximately 180 degrees on a plane along the plate surface, and the remaining two places are removed. The four corners 31 are processed into a predetermined shape by cutting out into a predetermined shape. Of course, the four corners 31 may be processed into a predetermined shape by notching the four corners 31 at the same time, notching two points without changing the orientation, or notching one point at a time.

詳しくは、該加工後の金属板３０が、図８に示すように、切り欠かれた四隅３１より中央側が建築用板（表面板４）の本体５となる長方形状の矩形部３２となっており、矩形部３２の四つの辺（本体５の外周辺７）から外側の各部位が夫々区画部３３となっている。そして、四つの区画部３３は、矩形部３２の平行で対をなす二長辺９の夫々外側に位置する二つの長辺延部３５と、矩形部３２の平行で対をなす二短辺８の夫々外側に位置する二つの短辺延部３４と、に分けられ、長辺延部３５の長辺方向Ｇの各端部３７と短辺延部３４の短辺方向Ｆの各端部３６の間は角延部４２を除き夫々分断されている。以下、長辺延部３５と短辺延部３４を区別しない際には区画部３３とする。 Specifically, as shown in FIG. 8, the metal plate 30 after the processing becomes a rectangular portion 32 having a rectangular shape in which the center side of the cutout four corners 31 is the main body 5 of the building plate (surface plate 4). In addition, each part outside the four sides (outer periphery 7 of the main body 5) of the rectangular part 32 is a partition part 33. The four partition portions 33 include two long side extending portions 35 positioned on the outer sides of the two long sides 9 that are parallel and paired with the rectangular portion 32, and two short sides 8 that are parallel and paired with the rectangular portion 32. The long side extending part 35 is divided into two short side extending parts 34 located on the outer sides of the long side extending part 35 in the long side direction G and the short side extending part 34 is arranged in the short side direction F in the short side direction F. Are separated from each other except for the corner extension 42. Hereinafter, when the long side extending part 35 and the short side extending part 34 are not distinguished, they are referred to as a partition part 33.

そして、角延部４２は矩形部３２と一体で矩形部３２の各角から外周に延設された円弧状の部位であり、角延部４２は長辺延部３５の端部３７と短辺延部３４の端部３６を一体に繋いでいる。更に、切欠き部２９は、建築用板完成時に夫々Ｕ字状の切欠き部２９となって、スリット部２８を構成する部位であり、角延部４２の外周に位置している。そのため、各区画部３３の端部は、他の区画部３３の端部と一体で連続された角延部４２と、建築用板完成時に突条部１６と側面部１０の後部２５と当接部２７のＬ字の各一辺となる部位と、に分割されている。 The rectangular extension portion 42 is an arc-shaped portion that is integral with the rectangular portion 32 and extends from each corner of the rectangular portion 32 to the outer periphery, and the angular extension portion 42 has a short side and an end portion 37 of the long side extension portion 35. The end portions 36 of the extending portions 34 are integrally connected. Further, the notches 29 are U-shaped notches 29 when the building board is completed, and constitute the slits 28, and are located on the outer periphery of the square extension 42. Therefore, the end portion of each partition portion 33 abuts on the square extension portion 42 that is integrally continuous with the end portion of the other partition portion 33, and the projecting portion 16 and the rear portion 25 of the side surface portion 10 when the building plate is completed. The portion 27 is divided into portions that are each one side of the L-shape.

また、長辺延部３５の端部３７には幅寸法の略中央から長辺延部３５と一体で凸部３９が長辺方向Ｇに突出している。該凸部３９は、長辺方向Ｇに最も突出した中央部４１と、長辺延部３５の端部３７と中央部４１の間に位置し中央部４１より幅広の帯状部４０と、からなり、帯状部４０は建築用板完成時に突端部２１となる部位である。そして、中央部４１は帯状部４０の幅寸法の略中央から突出しており、建築用板完成時に閉塞片２３となる部位である。 Further, at the end portion 37 of the long side extending portion 35, a convex portion 39 projects in the long side direction G integrally with the long side extending portion 35 from the approximate center of the width dimension. The convex portion 39 includes a central portion 41 that protrudes most in the long side direction G, and a belt-like portion 40 that is located between the end portion 37 of the long side extending portion 35 and the central portion 41 and is wider than the central portion 41. The belt-like portion 40 is a portion that becomes the protruding end portion 21 when the building board is completed. And the center part 41 protrudes from the approximate center of the width dimension of the strip | belt-shaped part 40, and is a site | part used as the obstruction | occlusion piece 23 when the board for construction is completed.

第２工程Ｓ２は、長辺延部３５にロール成形加工を行って、コ字状の長突条部１８を長辺延部３５に形成すると共に、長辺延部３５を矩形部３２に対して略直角に屈曲させて長側面部１２を形成する工程である。 In the second step S <b> 2, a roll forming process is performed on the long side extending portion 35 to form the U-shaped long ridge 18 on the long side extending portion 35, and the long side extending portion 35 is formed on the rectangular portion 32. In this process, the long side surface portion 12 is formed by bending at a substantially right angle.

詳しくは、ロール加工装置がローラを二輪以上有するローラ組を少なくとも二つ備えている。そして、一方のローラ組の間に長辺延部３５を長辺方向Ｇに沿って流すことで、長辺延部３５の長辺９から所定の距離離れた部分が屈曲されて、長辺方向Ｇに視て長辺延部３５から外周側に凸となるコ字状の長突条部１８が形成される。 Specifically, the roll processing apparatus includes at least two roller sets having two or more rollers. Then, by flowing the long side extending portion 35 along the long side direction G between the one roller sets, a portion away from the long side 9 of the long side extending portion 35 is bent, and the long side direction A U-shaped long ridge 18 is formed from the long side extending portion 35 to the outer peripheral side as viewed in G.

該長突条部１８形成後、長辺延部３５を、長突条部１８を形成したローラと異なる他方のローラ組の間に長辺方向Ｇに沿って流すことで、長辺延部３５と矩形部３２の境界である長辺９上を長側面部１２側の屈曲部３８として、長辺延部３５を矩形部３２から略直角に折り曲げられる。 After the long ridge portion 18 is formed, the long side extension portion 35 is caused to flow along the long side direction G between the other roller set different from the roller on which the long ridge portion 18 is formed, thereby the long side extension portion 35. The long side 9 is bent at a substantially right angle from the rectangular portion 32, with the long side 9, which is the boundary between the rectangular portion 32, as a bent portion 38 on the long side portion 12 side.

そして、凸部３９は、長突条部１８形成時に、帯状部４０が長突条部１８と略同形のコ字状に曲げられており、帯状部４０は長突条部１８の端部３７から長辺方向Ｇに突出した突端部２１となる。このとき、中央部４１は長辺方向Ｇに沿って平面を有した状態を保っており、突端部２１は長辺方向Ｇの端部開口２２が開いている。 The convex portion 39 is formed by bending the belt-like portion 40 into a substantially U-shape that is substantially the same as the long rib portion 18 when the long rib portion 18 is formed, and the belt-like portion 40 is an end portion 37 of the long rib portion 18. The protrusion 21 protrudes in the long side direction G. At this time, the central portion 41 maintains a state of having a plane along the long side direction G, and the projecting end portion 21 has the end opening 22 in the long side direction G open.

そのため、金属板３０は、図９に示すように、長辺９に沿った屈曲部３８が形成されると共に、各長辺９の延設方向Ａに長側面部１２及び突端部２１が形成される。そして、角延部４２は矩形部３２の長辺９の外周側に位置する長側面部１２側の部分４３がローラによって長側面部１２と略面一の平面状に加工されている。 Therefore, as shown in FIG. 9, the metal plate 30 is formed with a bent portion 38 along the long side 9, and a long side surface portion 12 and a protruding end portion 21 are formed in the extending direction A of each long side 9. The Further, in the rectangular extension portion 42, a portion 43 on the long side surface portion 12 side that is located on the outer peripheral side of the long side 9 of the rectangular portion 32 is processed into a flat surface that is substantially flush with the long side surface portion 12 by a roller.

このように、該工程で長突条部１８と長側面部１２が形成されるため、長辺延部３５は、長突条部１８によって、長側面部１２の前部２４となる部位と、長側面部１２の後部２５となる部位と、に区画される。更に、前述の前部２４のうち、切欠き部２９と長突条部１８の間に位置する部位が、当接部２７のＬ字の一方の辺を構成する長辺延部３５側の当接用の端部４６となる。 In this way, since the long ridge 18 and the long side surface 12 are formed in the process, the long side extension 35 is a portion that becomes the front portion 24 of the long side surface 12 by the long ridge 18 and It divides into the site | part used as the rear part 25 of the long side surface part 12. FIG. Further, a portion of the front portion 24 located between the notch portion 29 and the long ridge portion 18 is abutted on the long side extending portion 35 side that constitutes one side of the L-shape of the contact portion 27. It becomes the end 46 for contact.

なお、対をなす二つの長辺延部３５を加工するにあたって、各長辺延部３５のローラ組を短辺方向Ｆに対をなして設置して、両長辺延部３５の加工を同時に行い、製造時間を短縮することが好ましいが、一方ずつ順に加工を行ってもよい。もちろん、該工程において、長突条部１８の形成と長側面部１２の形成のいずれを先に行うかの順序は特に限定しない。 When processing the two long side extending portions 35 forming a pair, the roller sets of the long side extending portions 35 are installed in pairs in the short side direction F, and the processing of both the long side extending portions 35 is performed simultaneously. Although it is preferable to reduce the manufacturing time, the processing may be performed one by one. Of course, in this process, the order in which the long ridge portion 18 or the long side surface portion 12 is formed first is not particularly limited.

第３工程Ｓ３は、プレス加工装置を用いて、プレス加工と曲げ加工と絞り加工を行い、短突条部１７と、短側面部１１と、連続部２６を並行して形成する工程である。そして、該工程は、絞り加工による皺等の不具合の発生を抑えるため、第１加工処理Ｓ３１と、第２加工処理Ｓ３２と、第３加工処理Ｓ３３と、からなる三段階のプレス加工処理で構成されている。 The third step S3 is a step of forming the short ridge portion 17, the short side surface portion 11, and the continuous portion 26 in parallel by performing press processing, bending processing and drawing using a press processing apparatus. In order to suppress the occurrence of defects such as wrinkles due to the drawing process, the process includes a three-stage press working process including a first working process S31, a second working process S32, and a third working process S33. Has been.

詳しくは、短突条部１７が第１加工処理Ｓ３１時に形成され、短側面部１１が各加工処理時に段階的に角度を変えて短辺延部３４を本体５に対して折り曲げて形成され、連続部２６は第１加工処理Ｓ３１及び第２加工処理Ｓ３２で角延部４２の形状を調整した後第３加工処理Ｓ３３で深絞り加工を行い形成されている。すなわち、第１加工処理Ｓ３１及び第２加工処理Ｓ３２が上記深絞り加工の準備加工処理となっており、短側面部１１及び連続部２６は三段階の加工処理を経て形成されている。 Specifically, the short ridge portion 17 is formed at the time of the first processing S31, and the short side surface portion 11 is formed by bending the short side extending portion 34 with respect to the main body 5 while changing the angle stepwise at each processing time. The continuous portion 26 is formed by adjusting the shape of the angularly extending portion 42 in the first processing step S31 and the second processing step S32 and then performing deep drawing in the third processing step S33. That is, the first machining process S31 and the second machining process S32 are preparation processes for the deep drawing process, and the short side surface part 11 and the continuous part 26 are formed through three stages of machining processes.

なお、本例では、一方の短辺延部３４に第１加工処理Ｓ３１から第３加工処理Ｓ３３までを行った後、金属板３０を本体５の表面６に沿った平面上で略１８０度回転させて、未加工である他方の短辺延部３４に第１加工処理Ｓ３１から第３加工処理Ｓ３３を行って、各短辺延部３４を短側面部１１に成形しているが、以下、一方の短辺延部３４の加工処理のみ説明し、略同様の説明となる他方の短辺延部３４の加工の説明は省略する。 In this example, after the first processing S31 to the third processing S33 are performed on one short side extending portion 34, the metal plate 30 is rotated approximately 180 degrees on a plane along the surface 6 of the main body 5. Then, by performing the first processing S31 to the third processing S33 on the other unprocessed short side extending portion 34, each short side extending portion 34 is formed into the short side surface portion 11, Only the processing of the one short side extending portion 34 will be described, and the description of the processing of the other short side extending portion 34 that is substantially the same will be omitted.

第１加工処理Ｓ３１は、短辺延部３４の矩形部３２との境界から所定の距離離れた位置にプレス加工を行い、図１０に示すように、短辺延部３４に、短辺方向Ｆに視て短辺延部３４からコ字状に突出した短突条部１７を形成している。そして、短突条部１７の形成によって、短辺延部３４の分断部に短側面部１１の前部２４となる部位が規定されて、分断部の前部２４となる部位の端部における切欠き部２９と短突条部１７の間の部位が、当接部２７のＬ字の他方の辺を構成する短辺延部３４側の当接用の端部４５となる。 In the first processing S31, the short side extending portion 34 is pressed at a position away from the boundary with the rectangular portion 32 by a predetermined distance, and, as shown in FIG. , The short ridge 17 projecting in a U shape from the short side extension 34 is formed. Then, by forming the short ridge 17, a part to be the front part 24 of the short side part 11 is defined in the split part of the short side extending part 34, and a cut at the end part of the part to be the front part 24 of the split part is formed. A portion between the notch portion 29 and the short protrusion portion 17 serves as an abutting end portion 45 on the short side extending portion 34 side constituting the other side of the L shape of the abutting portion 27.

更に、短辺延部３４と矩形部３２の境界である短辺８上を短側面部１１側の屈曲部３８として、短辺延部３４を矩形部３２から所定の第１角度に折り曲げている。該第１角度は、例えば、未加工の位置（矩形部３２と略面一の状態）から約３０度〜４５度程度屈曲させた角度となっている。また、該第１加工処理Ｓ３１において、角延部４２は、第２工程Ｓ２での長側面部１２と略面一となっている長側面部１２側の部分４３が外周側（未加工時の位置）に向けて曲げ戻されており、該部分４３が長側面部１２から円弧状に膨らんだ曲面形状に拡径されている。 Further, the short side 8 that is the boundary between the short side extending part 34 and the rectangular part 32 is defined as a bent part 38 on the short side part 11 side, and the short side extending part 34 is bent from the rectangular part 32 to a predetermined first angle. . The first angle is, for example, an angle bent from about 30 degrees to 45 degrees from an unprocessed position (a state substantially flush with the rectangular portion 32). Further, in the first processing step S31, the angularly extending portion 42 has a portion 43 on the long side surface portion 12 side that is substantially flush with the long side surface portion 12 in the second step S2 on the outer peripheral side (when not processed). The portion 43 is expanded in a curved shape that swells in an arc shape from the long side surface portion 12.

第２加工処理Ｓ３２は、短辺延部３４を矩形部３２に対して所定の第２角度となるまで屈曲部３８で更に折り曲げており、該第２角度は、第１角度より深く且つ直角より浅い角度であり、例えば、約６０度程度となっている。 In the second processing S32, the short side extending portion 34 is further bent at the bent portion 38 until the rectangular portion 32 reaches a predetermined second angle, and the second angle is deeper than the first angle and from a right angle. It is a shallow angle, for example, about 60 degrees.

そして、該第２加工処理Ｓ３２において、角延部４２は、延設方向Ａに浅く絞られて、第３加工処理Ｓ３３の深絞り時に皺等の不具合の発生を抑制した中間形状に調整されている。該中間形状は、図１１に示すように、短辺延部３４側の部位４４を曲面形状とした部分４３の形状と略同形の曲面に成形されている。 In the second processing step S32, the corner extending portion 42 is adjusted to an intermediate shape that is shallowly drawn in the extending direction A and suppresses the occurrence of defects such as wrinkles during the deep drawing in the third processing step S33. Yes. As shown in FIG. 11, the intermediate shape is formed into a curved surface that is substantially the same shape as the shape of the portion 43 in which the portion 44 on the short side extension 34 side is a curved surface shape.

すなわち、第２加工処理Ｓ３２後の角延部４２は、矩形部３２の角の円弧の中心から該円弧の周方向の寸法の中点を通るラジアル方向に沿った仮想線Ｅを基準に、角延部４２（部分４３，４４）の形状が平面視略線対称の形状に調整されている。 That is, the angularly extending portion 42 after the second machining process S32 has a corner on the basis of an imaginary line E along the radial direction passing from the center of the arc of the corner of the rectangular portion 32 through the midpoint of the circumferential dimension of the arc. The shape of the extending part 42 (parts 43 and 44) is adjusted to a shape that is substantially line-symmetric with respect to a plan view.

第３加工処理Ｓ３３は、本体の角の曲率半径を調整すると共に、線対称に調整した角延部４２（部分４３，４４）に深絞り加工を行い、延設方向Ａに曲面を有した円弧状の連続部２６を角部１５に形成している。そして、該加工処理では、第１加工処理Ｓ３１時に外方に曲げた長側面部１２側の当接用の端部４６の面を、長側面部１２の外面に沿って並ぶように短側面部１１側に曲げている。 The third processing step S33 adjusts the radius of curvature of the corners of the main body, performs deep drawing on the angularly extending portions 42 (parts 43 and 44) adjusted in line symmetry, and has a curved surface in the extending direction A. An arc-shaped continuous portion 26 is formed in the corner portion 15. In the processing, the short side surface portion is arranged so that the surface of the abutting end portion 46 on the long side surface portion 12 side bent outward at the time of the first processing processing S31 is aligned with the outer surface of the long side surface portion 12. Bent to 11 side.

そのため、該第３加工処理Ｓ３３後の角部１５は、図１２に示すように、長側面部１２の端部３７と短側面部１１の端部３６を一体に連続させた連続部２６と、当接用の端部４５，４６を略直角に当接して突き合わせた当接部２７と、各区画部３３の端部を夫々延設方向Ａにおいて連続部２６と当接部２７に分割するスリット部２８と、を有した形状に成形されている。 Therefore, the corner portion 15 after the third processing step S33 includes, as shown in FIG. 12, a continuous portion 26 in which the end portion 37 of the long side surface portion 12 and the end portion 36 of the short side surface portion 11 are continuously integrated, The abutment portion 27 that abuts and abuts the abutting end portions 45 and 46 at substantially right angles, and the slit that divides the end portion of each partition portion 33 into the continuous portion 26 and the abutment portion 27 in the extending direction A, respectively. And a shape having a portion 28.

第４工程Ｓ４は、凸部３９の中央部４１に曲げ加工を行って閉塞片２３を形成して、長突条部１８（突端部２１）の端部開口２２を閉塞する等の後処理を行う仕上げ工程であり、各側面部１０及び各突条部１６の形成完了後に行う仕上げ加工を行う工程である。なお、仕上げ工程は、以下に例示する構成に限らず、第１〜第３工程Ｓ３の内容に応じて、工程の有無や内容を適宜決定するものである。 In the fourth step S4, post-processing such as bending the central portion 41 of the convex portion 39 to form the closing piece 23 and closing the end opening 22 of the long protruding portion 18 (protruding end portion 21). It is a finishing process to be performed, and is a process to perform a finishing process that is performed after the formation of each side surface portion 10 and each protruding portion 16 is completed. The finishing step is not limited to the configuration exemplified below, and the presence or absence of the step and the content are appropriately determined according to the content of the first to third steps S3.

本例では、帯状部４０の延設方向Ａの中央と略面一で並ぶ中央部４１に曲げ加工を行い、中央部４１で長突条部１８（突端部２１）の端部開口２２を閉塞させて、閉塞片２３を形成している。詳しくは、中央部４１を中央部４１と帯状部４０の境界で短側面部１１側に屈曲させて、端部開口２２を形成する帯状部４０の各端辺に中央部４１の平面を当接させている。 In this example, bending is performed on the central portion 41 that is substantially flush with the center in the extending direction A of the belt-like portion 40, and the end portion opening 22 of the long ridge portion 18 (protruding end portion 21) is closed at the central portion 41. Thus, the closing piece 23 is formed. Specifically, the central portion 41 is bent toward the short side surface portion 11 at the boundary between the central portion 41 and the belt-like portion 40, and the plane of the central portion 41 is brought into contact with each end side of the belt-like portion 40 forming the end opening 22. I am letting.

このように、角延部４２を設けると共に、角延部４２に絞り加工を行ったことで、突き合わされた二側面部１０の端部を一体にした連続部２６を容易に形成できて、角部１５に連続部２６を備えた建築用板を容易に製造することができる。そして、側面曲げ工程に伴って絞り工程を行い、連続部２６と側面部１０を同時或いは並行して形成したことで、絞り加工による皺等の不具合の発生を抑制できて、良好な表面６及び側面を有した建築用板を製造することができる。 Thus, by providing the corner extension portion 42 and performing the drawing process on the corner extension portion 42, it is possible to easily form the continuous portion 26 that integrates the end portions of the two side surface portions 10 that face each other. The building board provided with the continuous part 26 in the part 15 can be manufactured easily. Then, the drawing process is performed in accordance with the side surface bending process, and the continuous portion 26 and the side surface portion 10 are formed simultaneously or in parallel, so that occurrence of defects such as wrinkles due to the drawing process can be suppressed. An architectural board having side surfaces can be produced.

更に、切欠き部２９で角延部４２を当接用の端部４５，４６から分割したことで、連続部２６形成時に絞り加工用の金型等と端部４５，４６の干渉を軽減できると共に、絞り加工時に角延部４２に生じる負荷（応力）が端部４５，４６に加わり難くできる。そのため、絞り加工前に形成した突条部１６が、絞り加工時に折れ曲り等の形状変形や割れ等の破損が生じることを抑制できて、連続部２６及び突条部１６を良好に所望の形状に成形して、建築用板を製造することができる。 Furthermore, by dividing the angularly extending portion 42 from the contact end portions 45 and 46 at the notch portion 29, interference between the drawing die and the end portions 45 and 46 can be reduced when the continuous portion 26 is formed. At the same time, a load (stress) generated in the angularly extending portion 42 during the drawing process can be hardly applied to the end portions 45 and 46. Therefore, it is possible to suppress the ridges 16 formed before the drawing process from being deformed such as bending or damage such as cracks at the time of the drawing process, so that the continuous part 26 and the ridges 16 have a desired shape. It can be formed into a building board.

そして、長側面部１２をロール成形加工によって形成したことで、長辺延部３５の辺寸法以上のサイズとなる長側面部１２形成用の金型及びプレス加工装置を廃止できて、装置コストを低減することができる。更に、絞り工程を第１加工処理Ｓ３１と第２加工処理Ｓ３２と第３加工処理Ｓ３３からなる工程としたことで、角延部４２は、プレス成形加工後の短辺延部３４側の部分４４とロール成形加工後の長辺延部３５側の部分４３を略同形の線対称で対をなす形状に整えた後、深絞り加工を行うことができる。 And by forming the long side surface portion 12 by roll forming, the mold and press working apparatus for forming the long side surface portion 12 having a size equal to or larger than the side dimension of the long side extending portion 35 can be eliminated, and the apparatus cost can be reduced. Can be reduced. Furthermore, since the drawing process is a process composed of the first machining process S31, the second machining process S32, and the third machining process S33, the corner extension part 42 is a portion 44 on the short side extension part 34 side after the press molding process. After the roll forming process, the portion 43 on the long side extending part 35 side is arranged in a substantially symmetrical shape that forms a pair with line symmetry, and then deep drawing can be performed.

そのため、絞り工程での皺等の不具合の発生をより抑制することができる。なお、側面曲げ工程及び絞り工程の前或いは後に突条形成工程を行う等の突条部１６を形成する突条形成工程を、側面部１０を形成する側面曲げ工程から独立した作業工程として、建築用板を製造してもよい。 Therefore, the occurrence of defects such as wrinkles in the drawing process can be further suppressed. It should be noted that the ridge forming process for forming the ridge portion 16 such as performing the ridge forming process before or after the side bending process and the drawing process is performed as an operation process independent of the side bending process for forming the side surface 10. You may manufacture a board.

また、図１３に示す変形例では、第４工程Ｓ４で、各当接部２７に絞り加工を行って、各当接用の端部４５，４６のスリット部２８側に、連続部２６側に向かう程内部側に位置する傾斜面４７，４８を形成している。該絞り加工後の当接部２７は、スリット部２８側が平面視で連続部２６と略同寸或いは若干大径で且つ同心の円弧形状となっており、突条部１６側が平面視で互いの端部４５，４６を略直交して当接した略Ｌ字状となっている。 In the modification shown in FIG. 13, in the fourth step S <b> 4, each abutting portion 27 is subjected to a drawing process so that the abutting end portions 45, 46 are on the slit portion 28 side and on the continuous portion 26 side. The inclined surfaces 47 and 48 located inside are formed so that it goes. The abutting portion 27 after the drawing process has an arc shape that is substantially the same size or slightly larger in diameter and concentric with the continuous portion 26 in a plan view on the slit portion 28 side, and has a ridge portion 16 side on a mutual side in a plan view. The end portions 45 and 46 are substantially L-shaped with substantially orthogonal contact.

すなわち、当接部２７はスリット部２８側に角が無く、延設方向Ａに向かって、円弧形状から直角形状に滑らかに連続して変化した形状となっている。そのため、シール部に充填したシール部材が当接部２７の角で疵や破損等を生じることを抑制できて、シール部材を確実に且つ安定して充填できて、取付不備の発生を低減すると共に、シール部の取付不備による防水性能の低下を抑制することができる。 That is, the contact portion 27 has no corner on the slit portion 28 side, and has a shape that smoothly and continuously changes from the arc shape to the right angle shape in the extending direction A. For this reason, the seal member filled in the seal portion can be prevented from wrinkling or breakage at the corner of the contact portion 27, the seal member can be reliably and stably filled, and the occurrence of mounting defects is reduced. Moreover, the fall of the waterproof performance by the mounting defect of a seal part can be suppressed.

なお、前述した各例における各部の寸法値や角度は、単なる好ましい数値の例示にすぎず、各部の寸法値や角度は、サンドイッチパネルの寸法や用途或いは製造装置の性能や工順等に応じて適宜設定すればよく、例示の数値に限らない。 In addition, the dimension value and angle of each part in each example mentioned above are only examples of preferable numerical values, and the dimension value and angle of each part depend on the size and application of the sandwich panel, the performance of the manufacturing apparatus, the work order, and the like. What is necessary is just to set suitably, and it is not restricted to the numerical value of illustration.

５本体
６表面
７外周辺
１０側面部（短側面部，長側面部）
１３端部（短側面部）
１４端部（長側面部）
１５角部
１６突条部
２６連続部
３０金属板
３１四隅
３３区画部（短辺延部，長辺延部）
３６端部（短辺延部）
３７端部（長辺延部）
４２角延部
Ｆ延設方向 5 Body 6 Surface 7 Outer periphery 10 Side surface (short side surface, long side surface)
13 End (short side)
14 End (long side)
15 corner portion 16 ridge portion 26 continuous portion 30 metal plate 31 four corners 33 partitioning portion (short side extending portion, long side extending portion)
36 edge (short side extension)
37 End (long side extension)
42 Square extension F Extension direction

Claims

Four side portions extend from the outer periphery of the rectangular main body to the back surface side, and the end portions of the two adjacent side portions are integrated through a continuous portion so as to surround the entire circumference of the main body. the collision strip portion provided on the side section,
Each ridge is U-shaped in cross section,
Of the two adjacent ridges, one end of the ridge is provided with a protruding end that closes the longitudinal end opening of the other ridge. metal building plate, characterized in that is.

A method of manufacturing a metal building board according to claim 1,
A pre-cut process of cutting out the four corners of the metal plate and forming four sections on the outer periphery of the portion to be the main body;
A ridge forming step for forming the ridge and the protruding end in the partition; and
A side bending step of bending the partition portion toward the back side of the main body to form the side portion;
A drawing step of drawing the metal plate to form the continuous portion;
A method for producing a metal building board, comprising:

The method for producing a metal building board according to claim 2, wherein a side bending step for bending the partition portion and the drawing step are performed in parallel.

Four side portions extend from the outer periphery of the rectangular main body to the back surface side, and the end portions of the two adjacent side portions are integrated through a continuous portion so as to surround the entire circumference of the main body. It is a method of manufacturing a metal building plate having a protrusion on a side surface,
A pre-cut process of cutting out the four corners of the metal plate and forming four sections on the outer periphery of the portion to be the main body;
A ridge forming step of forming the ridge portion in the partition portion;
A side bending step of bending the partition portion toward the back side of the main body to form the side portion;
A drawing step of drawing the metal plate to form the continuous portion;
Have
A method for manufacturing a metal building board, wherein the side bending step of bending the partition portion and the drawing step are performed in parallel.

A first side bending step of bending the partition part forming one pair arranged in parallel among the partition parts is performed by roll forming,
Performing the second side bending process of bending the other paired partition part by press molding,
5. The method for manufacturing a metal building board according to claim 3 , wherein the second side surface bending step and the drawing step are performed in parallel after the first side surface bending step .

The drawing step is
A first processing step of forming a first curved surface in a portion on the partition portion side forming the one pair of the portions to be the continuous portion;
A second processing step of forming a second curved surface that forms a pair with the first curved surface in a portion on the partitioning portion side that forms the other pair of the portions to be the continuous portions;
A third processing step for drawing the first curved surface and the second curved surface after the first processing step and the second processing step;
The method for producing a metal building board according to claim 5, comprising: