JPH11350616A - Watertight structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a watertight structure capable of connecting securely and for a long time extrusion moldings made of mutual aluminum alloy or plate materials while minimizing the previous processes or works. SOLUTION: An extrusion molding 2 made of aluminum alloy is provided with a horizontal flat plate part 3, and a pair of projected streaks 4, 4 provided symmetrically on the underside thereof; and the ends of the flanges 6, 6 projected from both the right and left ends of the flat plate parts 3 are integrally provided with a slightly thick end parts 8, 8, and such a plurality of end parts 8 of the extrusion molding 2 are get butted against each other to form a butt part 9. An joining line W shallow in depth is formed along the surface of the butt part 9 by the frictional stirring junction using a tool including a friction pin and a surface pressing part, so that the extrusion molds 2 are metallically joined to each other. Since the surface of the joining line W is flat, after- working such as grinding is almost unnecessary, and a plane watertight structure 1 can be securely and for a long time maintained by such a joining line W.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、アルミニウム又は
アルミニウム合金製からなる複数の押出形材や板材等の
部材同士を接合することにより形成される、水密構造に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a watertight structure formed by joining a plurality of extruded members or plates made of aluminum or an aluminum alloy.

【０００２】[0002]

【従来の技術】アルミニウム又はアルミニウム合金(以
下、アルミニウムと称する)部材は、軽量であると共に
耐食性にも優れているいるため、建築・構築用やトラッ
ク等の車両における平面状又は立体状の構造に活用され
ている。この場合、アルミニウム部材同士の接合部にお
ける水密構造は、種々のものが考えられていた。例え
ば、空間を仕切る壁面等を形成する場合、図１１(Ａ)に
示すように、複数のアルミニウム製の断面が略平坦な押
出形材１４２のＬ形端部１４４同士を重ね合わせ、その
重ね合わせ部の凹溝１４５にシーリング１４６を充填す
ることにより、上記形材１４２同士を接合して水密構造
１４０を形成している。尚、各形材１４２は予めネジ１
４８により胴縁１４７に固定されている。2. Description of the Related Art Aluminum or aluminum alloy (hereinafter referred to as "aluminum") members are lightweight and have excellent corrosion resistance. Has been utilized. In this case, various watertight structures at the joint between the aluminum members have been considered. For example, in the case of forming a wall surface or the like that partitions a space, as shown in FIG. 11A, a plurality of L-shaped end portions 144 of an extruded profile 142 having a substantially flat cross section made of aluminum are overlapped with each other, and the overlap is performed. By filling the sealing 146 in the concave groove 145 of the portion, the shape members 142 are joined to each other to form the watertight structure 140. Note that each of the profile members 142 has a screw 1 in advance.
48 fixed to the body edge 147.

【０００３】また、図１１(Ｂ)に示すように、複数のア
ルミニウム製の中空押出形材１５１同士を用いる水密構
造１５０も広く行われれている。各押出形材１５１は断
面全体が偏平した矩形で、一方の端部に沿って底広凹溝
１５２を、他方の端部に沿って先太凸条１５４を有し、
且つそれらの両側に断面鋭角な段部１５６を有する。そ
して、これら底広凹溝１５２と先太凸条１５４を嵌合す
ると共に、上記段部１５６同士から形成される図示で上
下の各側面の凹部内に、合成樹脂からなる断面台形のパ
ッキン材１５８を強制的に嵌装する。該水密構造１５０
は形材１５１同士の接合強度を上記雄雌嵌合部(１５
２，１５４)により維持し、形材１５１間の水・気密(密
封)性を上記パッキン材１５８により確保するものであ
る。As shown in FIG. 11B, a watertight structure 150 using a plurality of hollow extruded members 151 made of aluminum is widely used. Each extruded profile 151 has a rectangular shape whose entire cross section is flat and has a wide-bottom groove 152 along one end and a tapered ridge 154 along the other end.
In addition, a step 156 having an acute cross section is provided on both sides thereof. The wide bottom concave groove 152 and the thick convex ridge 154 are fitted, and a packing material 158 made of synthetic resin and having a trapezoidal cross section is inserted into concave portions on the upper and lower sides formed by the steps 156. Is forcibly fitted. The watertight structure 150
Indicates that the joint strength between the profile members 151 is
2, 154), and the packing material 158 secures water-tightness between the profiles 151.

【０００４】更に、図１１(Ｃ)に示すように、断面が偏
平チャンネル状を呈するアルミニウム製の押出形材１６
２同士を用いる水密構造１６０も行われている。各押出
形材１６２は、端部に直角に曲げて形成されたフランジ
１６４同士を薄いパッキン材１６８を挟んで突合わせて
いる。そして、各フランジ１６４に穿設した複数の通し
孔にボルト１６６を貫通し、その各雄ネジ部にナット１
６７をそれぞれ螺着する。この水密構造１６０は押出形
材１６２間をパッキン材１６８とボルト１６６・ナット
１６７により水密性を確保している。Further, as shown in FIG. 11 (C), an aluminum extruded profile 16 having a flat channel shape in cross section is used.
A watertight structure 160 using two members is also provided. Each extruded member 162 has a flange 164 formed by bending the end portion at a right angle to each other with a thin packing member 168 interposed therebetween. Then, bolts 166 penetrate through a plurality of through holes formed in each flange 164, and nuts 1
67 are screwed respectively. In this watertight structure 160, watertightness is secured between the extruded members 162 by a packing material 168 and bolts 166 and nuts 167.

【０００５】更に、図１１(Ｄ)に示す水密構造１７０は
カーテンオール(図中右側は屋内、左側は屋外である）の
接合部を完全に水密を図る目的で開発されたもので、前
記水密構造１５０等で示されるパッキン材１５８，１６
８を利用したものを改良したものである。この水密構造
１７０は屋内側において上下の部材１７２，１７３間に
パッキン材１７７，１７８を設けて当接させ、屋外側に
隙間１７６を形成し、パッキン材１７８等と隙間１７６
間に大きな空間１７４を形成したものである。この水密
構造１７０によれば、空間１７４は隙間１７６により外
気圧と同じ気圧にあり、圧力差により隙間１７６から空
間１７４内に雨水が進入しない。また、運動エネルギを
伴って隙間１７６から進入した雨水も空間１７４内に進
入するが、パッキン材１７８等は隙間１７６から見通せ
ない高い位置にあるのでこれらにまで達しない。更に、
空間１７４内に進入した雨水は、該空間１７４内が外気
圧と同じ気圧にあるので重力により隙間１７６よりスム
ーズに排出される。これにより、空間１７４内でパッキ
ン材１７８等の高さまで進入した水が蓄積されることが
なく、これにより完全な水密が図るというものである。Further, a watertight structure 170 shown in FIG. 11 (D) has been developed for the purpose of completely watertight the joint of a curtain oar (the right side in the figure is indoor and the left side is outdoor). Packing materials 158, 16 shown by structure 150 etc.
This is an improvement of the one utilizing No. 8. In this watertight structure 170, packing materials 177 and 178 are provided between the upper and lower members 172 and 173 on the indoor side and brought into contact with each other, and a gap 176 is formed on the outdoor side.
A large space 174 is formed between them. According to the watertight structure 170, the space 174 is at the same atmospheric pressure as the outside air pressure due to the gap 176, and rainwater does not enter the space 174 from the gap 176 due to the pressure difference. Rainwater that has entered through the gap 176 with kinetic energy also enters the space 174, but does not reach the packing material 178 or the like because it is at a high position that cannot be seen through the gap 176. Furthermore,
The rainwater that has entered the space 174 is smoothly discharged from the gap 176 by gravity because the inside of the space 174 is at the same atmospheric pressure as the outside air pressure. As a result, water that has entered the space 174 to the height of the packing material 178 or the like does not accumulate, whereby complete watertightness is achieved.

【０００６】[0006]

【発明が解決すべき課題】しかしながら、前記水密構造
１４０では、水密性の施工は容易である反面、経年変化
により水密性が劣化する、という問題がある。また、前
記水密構造１５０では、押出形材１５１同士を嵌合して
容易に接合できると共に、嵌合部の両側に形成される凹
部内にパッキン材１５８を強制嵌装するだけで形成でき
る。しかし、形材１５１間に配設されるパッキン材１５
８と各形材１５１とは接着されておらずその内外(図示
で上下)間に風圧等により気圧の差が生じた場合、パッ
キン材１５８と形材１５１の間から漏水する、という問
題を有する。However, in the watertight structure 140, although the watertightness is easy to construct, there is a problem that the watertightness deteriorates due to aging. Further, in the watertight structure 150, the extruded profiles 151 can be easily fitted to each other by fitting, and can be formed only by forcibly fitting the packing material 158 into the concave portions formed on both sides of the fitting portion. However, the packing material 15 disposed between the profiles 151
8 and each of the profiles 151 are not adhered to each other, and if a pressure difference occurs between the inside and outside (up and down in the figure) due to wind pressure or the like, there is a problem that water leaks from between the packing material 158 and the profiles 151. .

【０００７】更に、前記水密構造１６０も水密構造１５
０と同様の問題を有する。また、前記水密構造１７０で
は、水密のために接続される部材１７２，１７３間に隣
接する部分の部材の形状が複雑になり、その形状に制限
が生じると共に、経時変化によるパッキン材１７８等が
劣化するという問題を有する。本発明は、以上に説明し
た従来における各技術の問題点を解決し、事前の加工や
準備作業を最小限とし、構築用や車両用等のアルミニウ
ム製の押出形材や板材同士間を互いに確実に且つ長期的
に接合して水密できると共に、後加工も殆んど不要と
し、更には任意の接合部形状の場合にも適用できる水密
構造を提供することを課題とする。Further, the watertight structure 160 is also a watertight structure 15.
It has the same problem as 0. Further, in the watertight structure 170, the shape of the member adjacent to the members 172 and 173 connected for watertightness becomes complicated, and the shape is limited, and the packing material 178 and the like due to the temporal change are deteriorated. Have the problem of The present invention solves the above-described problems of the conventional technologies, minimizes pre-processing and preparation work, and ensures that aluminum extruded profiles and plates for construction and vehicles are connected to each other. It is another object of the present invention to provide a watertight structure which can be joined for a long time and can be made watertight, hardly requires post-processing, and can be applied to any joint shape.

【０００８】[0008]

【課題を解決するための手段】本発明は、上記の課題を
解決するため、押出形材や板材同士の端部間に沿って、
摩擦ピンと表面抑え部とを含む工具を用いる摩擦撹拌接
合を僅かな深さで施し、表面が平坦な接合線を形成する
ことに着想して成されたものである。即ち、本発明の水
密構造は、アルミニウム又はアルミニウム合金からなる
部材同士の接合部の表面に沿って摩擦撹拌接合による接
合線を形成することにより、上記部材同士間に水密を施
した、ことを特徴とするまた、アルミニウム又はアルミ
ニウム合金からなる部材同士の各端部の突合わせ部又は
重合部に沿って、摩擦部の長さが０.５〜３.０ｍｍで且
つ摩擦部の外径が０.５〜３.０ｍｍの摩擦ピンと、表面
抑え部を含む工具を用いる摩擦撹拌接合によって接合線
を形成することにより、上記部材同士間に水密を施し
た、ことを特徴とする水密構造も含まれる。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an extruded shape and a sheet material between end portions thereof.
The present invention is based on the idea that a friction stir welding using a tool including a friction pin and a surface suppressing portion is performed at a small depth to form a flat joining line. That is, the watertight structure of the present invention is characterized in that watertightness is provided between the members by forming a joining line by friction stir welding along the surface of the joint between the members made of aluminum or aluminum alloy. Further, the length of the friction portion is 0.5 to 3.0 mm and the outer diameter of the friction portion is 0.5 along the abutting portion or overlapping portion of each end of the members made of aluminum or aluminum alloy. A watertight structure characterized in that a watertight structure is formed between the members by forming a joining line by friction stir welding using a friction pin of 5 to 3.0 mm and a tool including a surface suppressing portion.

【０００９】この水密構造によれば、表面が平坦な浅い
接合線により互いに突合わせ等する押出形材や板材等の
部材同士をその端部に沿って、金属的に隙間なく確実に
接合した水密性を付与した平面的又は立体的な構造とす
ることができる。上記摩擦部の長さを３.０ｍｍ以下と
したのは、水密施工は一般に組立現場、工事現場で行わ
れるため、運搬や操作が容易な簡便な摩擦撹拌接合装置
で施工可能にするためである。また、最小長さは確実な
接合が行え、水密不良を防ぐため、少なくとも０.５ｍ
ｍとした。更に、摩擦部の最小外径を０.５ｍｍとした
のは、摩擦ピンが強度上必要とする最小外径に相当する
ためであり、最大外径は上記接合装置の運搬や操作性の
点から３.０ｍｍとされる。即ち、摩擦撹拌接合では、摩
擦ピンを押付ける力が大きな要素となるが、係る押付け
力が大きくなるに連れて、その接合装置全体が大きくな
り、組立現場等での利用に適さなくなるためである。
尚、表面抑え部は摩擦部外径の２〜３倍の径を有する。[0009] According to this watertight structure, members such as extruded members and plate members which abut each other by a shallow joint line having a flat surface are securely joined to each other along their ends without any metallic gap. A planar or three-dimensional structure having a property can be provided. The length of the friction portion is set to 3.0 mm or less, because watertight construction is generally performed at an assembly site or a construction site, so that it can be performed with a simple friction stir welding apparatus that is easy to transport and operate. . In addition, the minimum length is at least 0.5 m to ensure reliable joining and prevent poor watertightness.
m. Furthermore, the reason why the minimum outer diameter of the friction portion is set to 0.5 mm is because it corresponds to the minimum outer diameter required for the friction pin in terms of strength, and the maximum outer diameter is determined from the viewpoint of transportation and operability of the above-described joining device. 3.0 mm. That is, in the friction stir welding, the force for pressing the friction pin is a large factor. However, as the pressing force increases, the entire joining apparatus becomes large, which makes it unsuitable for use in an assembly site or the like. .
The surface suppressing portion has a diameter that is two to three times the outer diameter of the friction portion.

【００１０】また、前記突合わせ部が、アルミニウム又
はアルミニウム合金からなる複数の押出形材同士の嵌合
部又は係合部の付近に形成される、水密構造も含まれ
る。係る水密構造によれば、摩擦撹拌接合をその工具に
より、押出形材や板材同士を確実に突合わせ状態で接合
線を形成して接合したものにできる。従って、例えば車
両用や建築物の壁面又は床・天井面を複数の押出形材に
より、水密性を与えて形成することができる。更に、前
記部材が、中空部又は半中空部を有する断面全体が略矩
形の中空状押出形材であり、これら複数の形材同士の端
部における少なくとも一方の側面の突合わせ部に沿っ
て、前記接合線が形成されている、水密構造も含まれ
る。この水密構造によれば、中空状形材同士を両側面に
形成される突合わせ部に沿って、一方又は双方に形成さ
れた接合線により確実に密封できる。[0010] The present invention also includes a watertight structure in which the butting portion is formed near a fitting portion or an engaging portion between a plurality of extruded profiles made of aluminum or an aluminum alloy. According to such a watertight structure, the friction stir welding can be performed by forming the joining line in a state where the extruded members and the plate members are securely butted with each other using the tool. Therefore, for example, a wall surface or a floor / ceiling surface of a vehicle or a building can be formed with a plurality of extruded members with water tightness. Further, the member is a hollow extruded shape having a substantially rectangular cross section having a hollow portion or a semi-hollow portion, and along a butting portion of at least one side surface at an end portion of the plurality of shapes, A watertight structure in which the joining line is formed is also included. According to this watertight structure, the hollow shaped members can be reliably sealed by joining lines formed on one or both of them along the abutting portions formed on both side surfaces.

【００１１】また、前記部材が板材であり、且つ複数の
該板材同士の端縁が、互いに巻付く曲折縁であり、且つ
各曲折縁を巻付けた重合部に沿って、前記接合線が形成
されている、水密構造も含まれる。係る水密構造によれ
ば、互いに重ね合わされた板材の曲折した端縁同士を、
内側の曲折縁に至る深さに形成された接合線により確実
に水密することができる。この水密構造は、各種の液体
又はガス用のタンク、ボンベ、容器や、水槽又はプール
等を容易に形成することができる。更に、前記部材が板
材であり、該板材が構築用パネルの端縁を構成し、該端縁
とパネル同士間に介在する押出形材との重合部に沿っ
て、前記接合線が形成されることにより複数の上記構築
用パネル間に水密が施される、水密構造も含まれる。[0011] Further, the member is a plate material, and edges of the plurality of plate materials are bent edges wound around each other, and the joining line is formed along the overlapping portion where each bent edge is wound. It also includes watertight structures. According to such a watertight structure, the bent edges of the plate materials overlapped with each other,
Watertightness can be ensured by the joining line formed at the depth reaching the inner bent edge. This watertight structure can easily form tanks, cylinders, containers, water tanks or pools for various liquids or gases. Further, the member is a plate, and the plate constitutes an edge of the construction panel, and the joining line is formed along a portion where the edge and an extruded shape interposed between the panels overlap each other. This also includes a watertight structure in which watertightness is provided between the plurality of construction panels.

【００１２】係る水密構造によれば、一対の板材間に種
々の芯材等を充填したサンドイッチパネル等、各種のパ
ネル同士を押出形材を介し水密性を保持して接合できる
と共に、広範な壁面や床面の他、金属的に密封された室
内を有する電磁波シールドルーム、コンピュータルー
ム、測定室、防音室、手術室、又は調理室等の建築物用
室内を構成することもできる。また、前記部材を接合し
た前記水密構造の用途が、車両用又は建築用の壁面、又
は、屋根面であるものも含まれる。勿論、これらの用途
以外に適用することも可能である。According to the watertight structure, various panels such as a sandwich panel in which various core materials are filled between a pair of plate materials can be joined to each other while maintaining watertightness through an extruded profile, and a wide range of wall surfaces can be formed. In addition to the floor and the floor, it is also possible to configure a building room such as an electromagnetic shield room, a computer room, a measurement room, a soundproof room, an operating room, and a cooking room having a metal-sealed room. Further, the use of the watertight structure in which the members are joined includes a vehicle or building wall surface or a roof surface. Of course, it is also possible to apply other than these uses.

【００１３】尚、本発明に用いる摩擦撹拌溶接(フリク
ション・スター・ウェルディング)の具体的な説明は、次
述する実施の形態において行うが、その原理については
例えば特表平９−５０８０７３号公報を参照されたい。
一般に、アルミニウム合金製の部材同士をＭＩＧ等のア
ーク溶接により溶接する場合、溶接品質が良好で密封性
に優れたものとすべく、溶接条件を種々に工夫した発明
が提案されている(特開平８−１９７２５５、特開平９
−１０３８８４号公報参照)。しかし、これらは、溶接
ワイヤ等を別途に必要とし、且つ溶接条件を厳守して行
わざるを得ないため、溶接の管理が煩雑になると共に、
場合により形成された溶接ビードの頂部分を研削して除
去する後加工も必要となるという問題がある。A specific description of friction stir welding (friction star welding) used in the present invention will be given in the following embodiment, and its principle is described, for example, in Japanese Patent Application Laid-Open No. 9-508073. Please refer to.
Generally, when welding aluminum alloy members by arc welding such as MIG, an invention has been proposed in which welding conditions are variously devised in order to obtain good welding quality and excellent sealing performance (Japanese Patent Application Laid-Open No. HEI 9-134572). 8-197255, JP-A-9
-103884). However, these require a welding wire or the like separately, and must be performed strictly under welding conditions, so that the management of welding becomes complicated and
In some cases, there is a problem that post-processing for grinding and removing a top portion of the formed weld bead is required.

【００１４】そこで、近年アーク溶接に比べて簡単に金
属材同士を接合できる上記摩擦撹拌接合が注目され始め
ている。この摩擦撹拌接合は図１２(Ａ),(ａ)に示すよ
うに、互いに端縁を突合わせ且つ拘束された一対のアル
ミニウム合金製の平板１８０，１８１間の突合わせ面に
沿って、回転する工具１８２を押圧しつつ移動させるこ
とにより行う。該工具１８２は、被接合材より硬度及び
軟化温度が高い材料からなり、回転円筒体１８４と、そ
の凹んだ底面である表面抑え部１８６と、その中心から
同軸に垂下する摩擦ピン１８８からなる。そして、工具
１８２は上記突合わせ面に沿ってやや傾けた状態で水平
(左)方向に移動され、且つ垂直方向の押し込み力が付加
される。尚、上記摩擦ピン１８８の周面には、図示しな
い水平方向に沿ったネジ状の摩擦撹拌翼が形成されてい
る。Therefore, in recent years, the above-mentioned friction stir welding, which can join metal materials more easily than arc welding, has begun to attract attention. As shown in FIGS. 12A and 12A, this friction stir welding rotates along a butting surface between a pair of aluminum alloy flat plates 180 and 181 whose edges are butted and constrained to each other. This is performed by moving the tool 182 while pressing it. The tool 182 is made of a material having a higher hardness and softening temperature than the material to be joined, and includes a rotating cylindrical body 184, a surface holding portion 186 that is a concave bottom surface, and a friction pin 188 that coaxially hangs from the center. Then, the tool 182 is horizontally tilted with a slight inclination along the abutting surface.
It is moved in the (left) direction, and a vertical pushing force is applied. In addition, a screw-shaped friction stirrer (not shown) is formed on the peripheral surface of the friction pin 188 along a horizontal direction (not shown).

【００１５】このピン１８８の回転と移動に伴って、各
板１８０，１８１の突合わせ面付近のアルミニウムは、
摩擦熱により加熱して可塑化されると共に、突合わせ面
を挟んで各板１８０，１８１間において水平及び垂直方
向に流動化される。また、上記表面抑え部１８６は、流
動化したアルミニウムの垂直方向の流動を抑制すると共
に、摩擦ピン１８８により流動化されたアルミニウムを
撹拌する。これにより、図１２(Ｂ)及び(Ｃ)に示すよう
に、上記アルミニウムは固相状態で固化した撹拌部１８
９となる。且つ、この撹拌部１８９の表面は、平坦で一
定の幅を有する接合線１９０となる。従って、従来のア
ーク溶接等のように盛り上がった溶接ビートがなく、後
加工が容易になる。With the rotation and movement of the pin 188, the aluminum near the butting surfaces of the plates 180 and 181
It is plasticized by heating due to frictional heat, and is fluidized in the horizontal and vertical directions between the plates 180 and 181 with the abutting surface therebetween. In addition, the surface suppressing portion 186 suppresses the vertical flow of the fluidized aluminum and agitates the aluminum fluidized by the friction pins 188. As a result, as shown in FIGS. 12B and 12C, the aluminum was solidified in a solid state and the stirring unit 18 was solidified.
It becomes 9. In addition, the surface of the stirring section 189 becomes a joining line 190 having a flat and constant width. Therefore, there is no raised welding beat as in conventional arc welding, and post-processing is facilitated.

【００１６】係る摩擦撹拌接合の従来考えられている用
途は、ＭＩＧ溶接等に替わる接合強度を要求される用途
であった為、通常摩擦ピンの摩擦部の長さ３〜１５ｍ
ｍ、径３〜１０ｍｍ、表面抑え部の径６〜２５ｍｍと比
較的大きいものであった。また、この場合工具１８２の
回転速度は５００〜１５０００ｒｐｍ、送り速度は０.
０５〜２ｍ／分で、工具１８２に加える押し込み力:１
ｋＮ〜２０ｋＮで行われていた。本発明では水密性を目
的とし接合強度を目的としない為、接合線の深さと幅が
極めて僅か形成すれば良い。従って、摩擦撹拌接合に用
いる工具における摩擦ピンの摩擦部の長さが３ｍｍ以下
でその範囲は約０.５ｍｍ〜３.０ｍｍ、摩擦部の外径が
０.５ｍｍ以上でその範囲は０.５〜３.０ｍｍにあるこ
とを要件とする。尚、表面抑え部の径は摩擦部の外径の
約２〜３倍で良い。Conventionally, the use of such friction stir welding has been considered as an application requiring joining strength in place of MIG welding or the like. Therefore, the length of the friction portion of a normal friction pin is usually 3 to 15 m.
m, the diameter was 3 to 10 mm, and the diameter of the surface suppressing portion was 6 to 25 mm, which was relatively large. In this case, the rotation speed of the tool 182 is 500 to 15000 rpm, and the feed speed is 0.5.
Pushing force applied to the tool 182 at a rate of 05 to 2 m / min: 1
kN to 20 kN. In the present invention, since the purpose is watertightness and not the bonding strength, the depth and width of the bonding line may be very small. Therefore, the length of the friction portion of the friction pin in the tool used for friction stir welding is 3 mm or less, the range is about 0.5 mm to 3.0 mm, and the outer diameter of the friction portion is 0.5 mm or more, and the range is 0.5. Requirement to be within 3.0 mm. The diameter of the surface suppressing portion may be about 2 to 3 times the outer diameter of the friction portion.

【００１７】この場合、工具の回転速度３０００から３
００００ｒｐｍ、送り速度０.０２〜２ｍ／分で、上記
工具に加える押し込み力を約１０Ｎ〜１０００Ｎで行う
ことができる。上記回転数を大きくしたのは摩擦ピンの
外径が小さいため、アルミニウムの軟化に必要な加熱量
を得るために必要となるためである。また、押し込み力
が小さくてすむのは、摩擦ピンの外径と押し込み深さが
小さくなるためである。これにより小型のハンディな装
置とすることが可能となり、工事現場等で使用できる可
搬式の接合装置になる。更に、上記回転数を得るには通
常の電動モータの他、例えば圧縮空気を用いたタービン
モータ(例：歯科用ドリル)を用いることで実現すること
ができる。尚、摩擦ピンの寸法が上記より小さいと加工
に高い精度が必要となり、ピン素材自体の寸法精度がか
なり必要となって実用的でなく、且つ周面に形成する摩
擦撹拌翼も十分に形成することが困難になる。また、上
記寸法より大きいと上記の如く工具に大きな力が必要と
なり装置が大掛かりとなり、ピン素材の大きさも大きく
せざるを得なくなり実用的でない。In this case, the rotation speed of the tool is 3000 to 3
At 0000 rpm and at a feed rate of 0.02 to 2 m / min, the pushing force applied to the tool can be about 10 N to 1000 N. The reason why the rotation speed was increased is that the friction pin had a small outer diameter and was required to obtain a heating amount necessary for softening aluminum. The reason why the pushing force is small is that the outer diameter and the pushing depth of the friction pin become small. As a result, a small and handy device can be obtained, and a portable joining device can be used at a construction site or the like. Furthermore, in order to obtain the above-mentioned number of rotations, besides a normal electric motor, for example, a turbine motor using compressed air (eg, a dental drill) can be used. If the size of the friction pin is smaller than the above, high precision is required for processing, the dimensional accuracy of the pin material itself is considerably required, which is not practical, and the friction stirrers formed on the peripheral surface are also sufficiently formed. It becomes difficult. On the other hand, if the size is larger than the above-mentioned size, a large force is required for the tool as described above, and the device becomes large-sized.

【００１８】[0018]

【発明の実施の形態】以下において、本発明の実施に好
適な形態を図面と共に説明する。図１は壁面等を構成す
る平面状の水密構造１に関し、図１(Ａ)に示すように、
複数の押出形材２をそれぞれの端部８で突合わせて接合
するものである。押出形材２は、アルミニウム合金JIS;
Ａ６０６３−Ｔ５又はＴ６等からなり、図示で水平な平
板部３と、その下側に断面略Ｌ字形で一対の突条４，４
を左右に対称に有し、且つ平板部３の左右両端から突出
するフランジ６，６の先端にはやや厚肉で断面矩形の端
部８，８を一体に有し、図示で奥行き(押出)方向に長尺
な形材である。上記突条４は、水密構造１が施される押
出形材２，２を図示しない柱等の構造材にネジ止め等で
固定するために用いられる。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 relates to a planar watertight structure 1 constituting a wall or the like, and as shown in FIG.
A plurality of extruded profiles 2 are joined at their ends 8 at the ends. Extruded material 2 is aluminum alloy JIS;
A6063-T5 or T6 or the like, and a horizontal plate portion 3 as shown in the figure and a pair of ridges 4
Are symmetrical to the left and right, and the ends of the flanges 6 and 6 projecting from the left and right ends of the flat plate portion 3 are integrally provided with ends 8 and 8 each having a slightly thicker and rectangular cross section. It is a long profile in the direction. The ridges 4 are used to fix the extruded members 2, 2 on which the watertight structure 1 is provided, to a structural member such as a column (not shown) by screwing or the like.

【００１９】先ず、図１(Ａ)のように、長手方向に隣接
する押出形材２，２の各端部８を互いに当接させ、突合
わせ部９を形成するように、凸条４，４を活用して形材
２，２を図示しない柱等の構造材にネジ等で固定する。
この状態で押出形材２，２間の突合わせ部９の上面(表
面)側に沿って図２で次述する摩擦撹拌接合を施す。す
ると、図１(Ｂ)，(Ｃ)に示すように、各端部８,８間に
跨って、摩擦ピンの長さに応じた深さの浅い接合線Ｗが
形成される。この接合線Ｗは、各端部８を形成するアル
ミニウムが固相状態で流動化した後に固化したものであ
るため、隣接する押出形材２，２を突合わせ部９に沿っ
て金属的に接合し、確実で安定した水密構造１とするこ
とができる。しかも、図１(Ｃ)のように、接合線Ｗの表
面は平坦であるため、突出部もなく後加工も殆んど要し
ない。尚、接合線Ｗを突合わせ部９の表面側に沿って形
成したのは、図１(Ａ)において各押出形材２，２を所定
の位置に取付けた後で、水密施工が必要となるケースが
多いためである。First, as shown in FIG. 1 (A), each end 8 of the extruded profiles 2, 2 adjacent in the longitudinal direction is brought into contact with each other, and the ridges 4, The members 2 and 2 are fixed to a structural member such as a pillar (not shown) by using a screw 4 or the like.
In this state, friction stir welding described below with reference to FIG. 2 is performed along the upper surface (front surface) of the butted portion 9 between the extruded members 2. Then, as shown in FIGS. 1B and 1C, a joining line W having a depth corresponding to the length of the friction pin is formed across the end portions 8, 8. Since the joining line W is formed by solidifying the aluminum forming each end 8 after fluidizing in a solid state, the adjacent extruded sections 2 and 2 are metallically joined along the butt 9. In addition, a reliable and stable watertight structure 1 can be obtained. In addition, as shown in FIG. 1C, the surface of the joining line W is flat, so that there is no protrusion and almost no post-processing is required. The reason why the joining line W is formed along the surface side of the butted portion 9 is that watertight construction is required after each of the extruded members 2 and 2 is attached to a predetermined position in FIG. This is because there are many cases.

【００２０】次に上記接合線Ｗを形成する摩擦撹拌接合
について図２により説明する。図２(Ａ)及び(ａ)に示す
ように、予め各形材２を端部８同士を互い突合わせて柱
等に固定した後、その突合わせ部９の表面側に工具１０
をセットする。係る工具１０は、形材２より硬度及び軟
化温度が高い材料からなり、回転円筒体１２と、その底
面であって緩く湾曲して凹んだ外径４ｍｍの表面抑え部
１４の中心から同軸にて垂下する摩擦ピン１６とからな
る。この摩擦ピン１６は外径が１.８ｍｍ、長さが１.５
ｍｍの円柱体で、その外周面には図示しないネジ状の小
さな摩擦撹拌翼が形成されている。そして、図示のよう
に上記円筒体１２と摩擦ピン１６の中心軸を、各形材２
の端部８，８に対して直角から僅かに斜めにした状態
で、図示しないモータにより工具１０を回転させると共
に、突合わせ部９に向けて下降させる。上記工具１０の
回転速度は３０００〜３００００ｒｐｍの範囲内で適宜
選択される。Next, the friction stir welding forming the welding line W will be described with reference to FIG. As shown in FIGS. 2 (A) and 2 (a), after each shape member 2 is fixed to a column or the like with its ends 8 facing each other, a tool 10
Is set. The tool 10 is made of a material having a higher hardness and softening temperature than the shape member 2, and is coaxial with the rotating cylindrical body 12 and the center of a surface restraining portion 14 having an outer diameter of 4 mm, which is a slightly curved and concave bottom surface. And a hanging friction pin 16. The friction pin 16 has an outer diameter of 1.8 mm and a length of 1.5.
mm, and a small screw-shaped friction stirrer blade (not shown) is formed on the outer peripheral surface thereof. Then, as shown in the figure, the central axis of the cylindrical body 12 and the friction pin 16 is
The tool 10 is rotated by a motor (not shown) in a state where the tool 10 is slightly inclined from a right angle with respect to the ends 8, 8, and is lowered toward the butting portion 9. The rotation speed of the tool 10 is appropriately selected within a range of 3000 to 30000 rpm.

【００２１】次いで、図２(Ｂ)及び(ｂ)に示すように、
工具１０を各形材２に対し垂直方向に押圧し、上記表面
抑え部１４全体が各端部８の表面に達するまで摩擦ピン
１６を押し込む。この状態で、工具１０をその傾斜した
向きと反対方向の図２(ｂ)で左方に移動させる。この送
り速度は、０.０５〜２メートル／分の範囲内において適
宜選択される。この工具１０の回転と移動に伴って、各
端部８の突合わせ部９付近を形成するアルミニウムは上
記摩擦ピン１６により加熱され可塑化されると共に、突
合わせ部９を挟んで左右の形材２，２間において水平及
び垂直方向に流動化される。また、流動化されたアルミ
ニウムは、上記抑え部１４により垂直方向(表面方向)の
流動に対し一定の圧力を与えられると共に、接合される
各端部８の表面付近から外部に飛散することを阻止され
る。Next, as shown in FIGS. 2B and 2B,
The tool 10 is pressed against each section 2 in the vertical direction, and the friction pins 16 are pushed in until the entire surface holding section 14 reaches the surface of each end 8. In this state, the tool 10 is moved leftward in FIG. 2B in a direction opposite to the inclined direction. This feed speed is appropriately selected within a range of 0.05 to 2 meters / minute. As the tool 10 rotates and moves, the aluminum forming the vicinity of the butting portion 9 of each end 8 is heated and plasticized by the friction pin 16 and the left and right profiles are sandwiched by the butting portion 9. It is fluidized in the horizontal and vertical directions between the two. In addition, the fluidized aluminum is given a certain pressure against the flow in the vertical direction (surface direction) by the above-mentioned restraining portion 14 and prevents the aluminum from scattering outside from near the surface of each end 8 to be joined. Is done.

【００２２】そして、図２(Ｂ)及び(Ｃ)に示すように、
工具１０が通過した後において、流動化されたアルミニ
ウムは流動化状態から固化して、摩擦ピン１６の大きさ
に応じた概ね逆三角形の断面を有する前記接合線Ｗとな
る。図２(ｃ)に示すように、接合線Ｗの表面は、表面抑
え部１４によりその直径の幅相当分が僅かに凹むが、突
合わせ部９に沿って連続する平坦な表面Ｗａとなる。ま
た、接合線Ｗの内部には、上記抑え部１４の存在により
空気の巻き込みが生じないので、空孔が形成されない。Then, as shown in FIGS. 2B and 2C,
After the tool 10 has passed, the fluidized aluminum solidifies from the fluidized state to become the joining line W having a generally inverted triangular cross section according to the size of the friction pin 16. As shown in FIG. 2C, the surface of the joining line W becomes a flat surface Wa continuous along the abutting portion 9, although the surface suppressing portion 14 slightly dents the portion corresponding to the width of the diameter. In addition, no air is formed inside the joining line W due to the presence of the suppressing portion 14, so that no air hole is formed.

【００２３】以上の接合線Ｗにより複数の押出形材２を
浅く接合して得られる水密構造１によれば事前の加工を
要さず、形材２同士を突合わせて拘束するのみで金属的
な接合が突合わせ部９の全長に沿って形成されるので、
平面状にした壁・床・天井面に対し、確実に水密性を長期
的に安定して付与することができる。しかも、接合線Ｗ
の表面は平坦なため、研削等の後加工も殆ど不要であ
る。尚、形材２の平板部３の中間を直角に折り曲げた形
材か、又は予め断面全体が略へ形状である形材を複数の
水密構造１，１間に介在させて、上記同様に接合線Ｗに
て接合することにより、壁面と床面及び／又は天井面を
連続して密封した立体的な水密構造にすることもでき
る。According to the watertight structure 1 obtained by joining a plurality of extruded profiles 2 shallowly with the above-described joining line W, no prior processing is required, and only the profiles 2 are abutted and constrained. Is formed along the entire length of the butt 9,
It is possible to reliably and stably impart watertightness to a flat wall, floor, or ceiling surface for a long period of time. Moreover, the joining line W
Since the surface is flat, almost no post-processing such as grinding is required. It is to be noted that a shape material obtained by bending the middle of the flat plate portion 3 of the shape material 2 at a right angle, or a shape material whose entire cross section is substantially in advance is interposed between the plurality of watertight structures 1, 1 and joined in the same manner as described above. By joining with the line W, a three-dimensional watertight structure in which the wall surface and the floor surface and / or the ceiling surface are continuously sealed can be obtained.

【００２４】図３は、水密構造１の適用例を関し、図３
(Ａ)は建物Ｈの屋根部構造材Ｌの上下面に前記形材２を
連続して配設し、これらを接合線Ｗで互いに接合すると
共に、壁部構造材Ｋの内外面にも前記形材２を連続して
配設し、外側面のみ接合線Ｗで接合したものである。
尚、軒先と外面側の下端には水切り片を有する端部用の
形材２′を配置し、床部構造材Ｆ上には形材２，２を敷
設している。また、図３(Ｂ)は水密構造１を適用したド
ライタイプのバン型車両Ｖの貨物室の縦断面図で、屋根
部構造材Ｌの上面と壁部構造材Ｋの外面に沿って前記形
材２を連続して配設し、これらを接合線Ｗで互いに接合
したものである。屋根部構造材Ｌと壁部構造材Ｋの出隅
部にはコーナ用形材２″が、壁部構造材Ｋの下端には端
部用の形材２′が配置されている。尚、上記建物Ｈや車
両Ｖの屋根部構造材Ｌと壁部構造材Ｋが各形材２，２の
支持強度を有するので、浅い接合線Ｗによっても充分な
水密性を得ることができる。FIG. 3 shows an application example of the watertight structure 1, and FIG.
(A) shows that the profile members 2 are continuously arranged on the upper and lower surfaces of a roof structural member L of a building H, and these are joined to each other by a joining line W, and the inner and outer surfaces of the wall structural member K are also provided on the inner and outer surfaces. The profile members 2 are arranged continuously, and only the outer surface is joined by the joining line W.
At the eaves tip and the lower end on the outer surface side, an end section 2 'having a water drainage piece is arranged, and the sections 2 and 2 are laid on the floor structural member F. FIG. 3B is a longitudinal sectional view of a cargo compartment of a dry-type van-type vehicle V to which the watertight structure 1 is applied, and is formed along the upper surface of the roof structural material L and the outer surface of the wall structural material K. The members 2 are arranged continuously, and they are joined to each other by a joining line W. At the protruding corners of the roof structural member L and the wall structural member K, a corner profile 2 "is disposed, and at the lower end of the wall structural member K, an end profile 2 'is disposed. Since the roof structural member L and the wall structural member K of the building H and the vehicle V have the supporting strength of each of the profiles 2, 2, sufficient watertightness can be obtained even with a shallow joint line W.

【００２５】図４は、異なる形態の水密構造に関する。
尚、以下において前記の形態と共通する要素には同じ符
号を用いるものとする。図４は、バン型車両等の貨物室
の屋根面等を構成する平面状の水密構造２０に関し、図
４(Ａ)に示すように、アルミニウムで複数の押出形材２
１をそれぞれの端部２４，２６における係合部２５，２
８により、その付近に形成される突合わせ部２９を浅い
接合線Ｗで接合するものである。各押出形材２１も、前
記と同様の材質からなり、平板部２２の図示で下側面
に、断面略Ｌ字形の一対の突条２３を有する。各突条２
３も水密構造２０にした押出形材２１，２１をネジＮで
梁Ｌ等に固定される。FIG. 4 relates to a different form of watertight structure.
In the following, the same reference numerals are used for the elements common to the above-described embodiments. FIG. 4 relates to a planar watertight structure 20 constituting a roof surface of a cargo compartment of a van-type vehicle or the like, and as shown in FIG.
1 at the engagement portions 25, 2 at the respective ends 24, 26.
8, the butting portion 29 formed in the vicinity is joined by a shallow joining line W. Each extruded member 21 is also made of the same material as described above, and has a pair of ridges 23 having a substantially L-shaped cross section on the lower surface of the flat plate portion 22 in the drawing. Each ridge 2
3 also fixes the extruded members 21, 21 having the watertight structure 20 to the beam L or the like with screws N.

【００２６】図４(Ａ)で中央の押出形材２１における平
板部２２の左端には、厚肉且つ矩形断面の端部２６と、
その先端に断面Ｌ字形の係合部２８が形成される。ま
た、平板部２２の右端には、鉤形の端部２４と、その先
端に断面逆Ｌ字形の係合部２５が形成されている。尚、
左右に位置する形材２１も同じ断面を有する。そして、
図４(Ｂ)に示すように、互いに長手方向に沿って隣接し
た複数の押出形材２１の各係合部２５，２８を係合し
て、その付近に突合わせ部２９を形成した状態で、梁Ｌ
に固定して各形材２１を拘束し、上記突合わせ部２９に
沿ってその表面側から前記工具１０を用いて摩擦撹拌接
合を施す。すると、図示のように各端部２４，２６に跨
って摩擦ピンの大きさに応じた接合線Ｗが形成される。At the left end of the flat plate portion 22 in the central extruded section 21 in FIG. 4A, an end portion 26 having a thick and rectangular cross section is provided.
An engaging portion 28 having an L-shaped cross section is formed at the tip. Further, a hook-shaped end portion 24 is formed at the right end of the flat plate portion 22 and an engagement portion 25 having an inverted L-shaped cross section is formed at the tip end. still,
The profiles 21 located on the left and right also have the same cross section. And
As shown in FIG. 4 (B), in a state where the engaging portions 25 and 28 of the plurality of extruded profiles 21 adjacent to each other along the longitudinal direction are engaged, and the butted portion 29 is formed in the vicinity thereof. , Beam L
, Each of the shaped members 21 is restrained, and friction stir welding is performed along the butting portion 29 from the surface side using the tool 10. Then, as shown in the figure, a joining line W corresponding to the size of the friction pin is formed across the ends 24 and 26.

【００２７】係る水密構造２０によれば、各押出形材２
１は予め係合部２５，２８による係合により互いに位置
決めされると共に、両者間の突合わせ部２９に沿って正
確に接合線Ｗが形成されているので、各形材２１の平板
部２２を平面状に連続させた水密性に優れた屋根面等を
形成することができる。尚、各突条２３による梁Ｌ等へ
の固定は、複数の形材２１を予め梁Ｌ等に固定した後、
これらに摩擦撹拌接合を施し水密構造２０を形成する
他、各形材２１を図４(Ｂ)中の下側面における各突合わ
せ部２９′に沿って摩擦撹拌接合を施し、上下逆の接合
線Ｗによる水密構造２０を先に形成した後、これらを梁
Ｌに固定することもできる。後者による場合、接合線Ｗ
による接合部が外表面に出ないため、外観的に優れたも
のとなるが、屋根面の大きさによっては前者により接合
する個所も生じることに留意すべきである。According to the watertight structure 20, each extruded section 2
1 is positioned in advance by the engagement of the engaging portions 25 and 28, and the joining line W is accurately formed along the butting portion 29 between the two. It is possible to form a roof surface or the like that is continuous in a plane and has excellent watertightness. In addition, the fixing to the beam L or the like by each ridge 23 is performed after a plurality of shaped members 21 are fixed to the beam L or the like in advance.
In addition to forming a watertight structure 20 by performing friction stir welding on these members, each of the shaped members 21 is subjected to friction stir welding along each abutting portion 29 ′ on the lower surface in FIG. After the watertight structure 20 made of W is formed first, these can be fixed to the beam L. In the latter case, the joining line W
However, it should be noted that depending on the size of the roof surface, there may be places where the former is joined, depending on the size of the roof surface.

【００２８】図５は、更に異なる形態の水密構造に関す
る。図５(Ａ)は、トラックの荷台における自立式の側壁
(以下、アオリと称す)３０のの垂直断面を示す。アオリ
３０はアルミニウムの押出形材からなるアッパーレール
３１、複数のミドルレール３２、及びロアーレール３３
とから構成される。上記各レール３１,３２,３３は中空
部３５を有し、アッパーレール３１とロアーレール３３
は図示で右側の荷台側に開いた開口部３４を有する。更
に、各レール３１,３２,３３を貫通する長尺なボルト３
７の両端のネジ部３８は、アッパーレール３１とロアー
レール３３の各開口部３４内に位置し、座金及びダブル
ナット３９によって、各レール３１,３２,３３を締結し
ている。尚、各開口部３４はカバー３６によってリベッ
ト止め(図示せず)等により閉塞される。FIG. 5 relates to a further different form of watertight structure. FIG. 5 (A) shows a free-standing side wall in a truck bed.
(Hereinafter referred to as tilt) 30 shows a vertical cross section. The tilt 30 includes an upper rail 31 made of extruded aluminum material, a plurality of middle rails 32, and a lower rail 33.
It is composed of Each of the rails 31, 32, 33 has a hollow portion 35, and an upper rail 31 and a lower rail 33.
Has an opening 34 opened to the right side of the loading platform in the drawing. Furthermore, a long bolt 3 penetrating through each rail 31, 32, 33
The threaded portions 38 at both ends of 7 are located in the respective openings 34 of the upper rail 31 and the lower rail 33, and the rails 31, 32, 33 are fastened by washers and double nuts 39. Each opening 34 is closed by a cover 36 by riveting (not shown) or the like.

【００２９】加えて、上記各レール３１,３２,３３間の
突合わせ部には、図５(Ｂ)に示すように、それらの内外
側面に沿って前記摩擦撹拌接合による浅い接合線Ｗが形
成されている。この接合線Ｗを所望数のレール間の突合
わせ部に沿い施すことにより、平面状の水密構造を有す
るアオリ３０を形成することができる。係るアオリ３０
は、複数のレール３１,３２,３３を、ボルト３７とナッ
ト３９とで緊密に結合すると共に、内外の各目地を浅い
接合線Ｗにより接合したことにより、アオリの各表面が
金属的に連続する。このため、従来のように、各レール
３１,３２,３３同士の嵌合部等において、連続走行に伴
う摩擦によるアルミニウムの微粉末を生じることがなく
なり、この粉末の酸化物にレール３１間に進入した雨水
が混じって黒い液体となってアオリの表面を汚したり、
積み荷を損なう等の不都合を解消することができる。In addition, as shown in FIG. 5B, a shallow joining line W by the friction stir welding is formed along the inner and outer surfaces of the butted portion between the rails 31, 32, 33. Have been. By applying this joining line W along the butted portion between the desired number of rails, the tilt 30 having a planar watertight structure can be formed. Such tilting 30
Is that a plurality of rails 31, 32, 33 are tightly connected by bolts 37 and nuts 39, and each joint of the inside and outside is joined by a shallow joining line W, so that each surface of the tilt is metallically continuous. . For this reason, unlike the conventional case, fine aluminum powder is not generated due to friction caused by continuous running at the fitting portion between the rails 31, 32, 33, and the oxide of this powder enters between the rails 31. Rainwater mixed with it turned into a black liquid and stained the surface of Aori,
Inconveniences such as damage to cargo can be eliminated.

【００３０】図５(Ｃ)は、例えば平面状の水密構造を有
する間仕切４０の縦断面図を示す。この間仕切４０は、
天井面ｃｅと床面ｆに固定されるアルミニウムの押出形
材４１と、その間に積層される複数の形材４６から構成
される。各形材４１，４６は断面が略矩形状の中空部４
３を有する。また、上下端の各形材４１からは水平なフ
ランジ４２が延在し、ボルト・ナット４７により天井面
ｃｅと床面ｆに固定される。更に、各形材４１，４６の
上下部の一側には上下方向に延びるフランジ４４と、そ
の反対側に位置し上下に隣接する形材の上記フランジ４
４を受け入れる段部４５が形成されている。FIG. 5C is a longitudinal sectional view of a partition 40 having, for example, a planar watertight structure. This partition 40
It is composed of an extruded aluminum member 41 fixed to the ceiling surface ce and the floor surface f, and a plurality of members 46 stacked therebetween. Each of the shaped members 41 and 46 has a hollow portion 4 having a substantially rectangular cross section.
3 A horizontal flange 42 extends from each of the upper and lower end members 41 and is fixed to the ceiling surface ce and the floor surface f by bolts and nuts 47. Further, a flange 44 extending in the vertical direction is provided on one side of the upper and lower portions of each of the profiles 41 and 46, and the flange 4 of the profile which is located on the opposite side and is vertically adjacent thereto.
A step 45 is formed for receiving the step 4.

【００３１】そして、各形材４１，４６を突合わせ、各
フランジ４４を対向する段部４５内に挿入して嵌合し、
且つ各フランジ４４から段部４５に向けてネジ４８を螺
入する。これによって各形材４１，４６同士が強固に結
合された間仕切４０となる。更に、図示５(Ｄ)に示すよ
うに、上下の形材４１,４６の目地に沿って、その外側か
ら前記工具１０を用いて摩擦撹拌接合を施す。その結
果、図示のようにフランジ４４と段部４５に跨って、深
さの浅い接合線Ｗが形成される。この摩擦撹拌溶接によ
る接合線Ｗを所望数の形材４１，４６間の接続部に施す
ことにより、所望のサイズで平面状の水密構造を有する
間仕切４０を形成することができる。尚、接合線Ｗは各
形材４１,４６間の何れかの表面にのみ形成しても良
い。この場合、フランジ４４の板厚は、摩擦ピンの長さ
より小さくすることが必要である。Then, the sections 41 and 46 are abutted, and the flanges 44 are inserted into the opposing step portions 45 and fitted.
A screw 48 is screwed from each flange 44 toward the step 45. As a result, a partition 40 in which the sections 41 and 46 are firmly connected to each other is obtained. Further, as shown in FIG. 5 (D), along the joints of the upper and lower profiles 41, 46, friction stir welding is performed using the tool 10 from outside the joints. As a result, a shallow joining line W is formed across the flange 44 and the step portion 45 as shown. By applying the joining line W by the friction stir welding to the connection between the desired number of shaped members 41 and 46, the partition 40 having a desired size and a planar watertight structure can be formed. The joining line W may be formed only on any surface between the sections 41 and 46. In this case, the thickness of the flange 44 needs to be smaller than the length of the friction pin.

【００３２】図６(Ａ)は、室内に敷設される平面状の水
密構造を有する床ユニット５０の一部の断面を示す。こ
の床ユニット５０はアルミニウム製で複数の押出形材５
１から構成される。各押出形材５１は断面が偏平な矩形
の本体５２内に略矩形の中空部５３を有する。各形材５
１の左端部には本体５２の上面から連続して水平に突出
するフランジ５６と、該フランジ５６先端から垂下する
凸条５４と、本体５２の下面から水平に突出する小フラ
ンジ５８が形成されている。また、各形材５１の右端部
には本体５２の出隅部に位置する上向きの凹溝５５と、
本体５２の下面から水平に突出する断面略クランク形の
押え条５７が形成されている。FIG. 6A shows a cross section of a part of a floor unit 50 having a planar watertight structure laid in a room. The floor unit 50 is made of aluminum and has a plurality of extruded members 5.
1 Each extruded profile 51 has a substantially rectangular hollow portion 53 in a rectangular main body 52 having a flat cross section. Each section 5
A flange 56 continuously projecting horizontally from the upper surface of the main body 52, a ridge 54 hanging down from the tip of the flange 56, and a small flange 58 projecting horizontally from the lower surface of the main body 52 are formed at the left end of the main body 52. I have. Further, at the right end of each section 51, an upward concave groove 55 located at a protruding corner of the main body 52,
A pressing ridge 57 having a substantially crank-shaped cross section is formed to project horizontally from the lower surface of the main body 52.

【００３３】そして、先ず図示で左側に位置する押出形
材５１における押え条５７に桁等の床部構造材Ｆにから
立設するアンカーボルトｂを貫通し、ナット５９を螺着
して固定する。次に、この形材５１の右側に別の形材５
１を配置し、その凸条５４を上記固定済形材５１の凹溝
５５内に嵌合すると共に、その小フランジ５８を上記固
定済形材５１の押え条５７の下部に進入させる。この作
業を繰り返して、複数の形材５１を互いに結合しつつ、
床部構造材Ｆ上に固定する。更に、各形材５１の上記凸
条５４と凹溝５５との嵌合部５１ａに沿ってその上側か
ら前記工具１０を用いて摩擦撹拌接合を施す。その結
果、図６(Ｂ)に示すように、凸条５４と凹溝５５の嵌合
部５１ａに跨って深さの浅い接合線Ｗが形成される。係
る摩擦撹拌接合による接合線Ｗを、所望数の形材５１間
の上面側の嵌合部５１ａに施すことで、所望の広さで平
面状の水密構造と強固な連結構造とを有する床ユニット
５０を形成することができる。Then, first, an anchor bolt b erected from the floor structural material F such as a spar is penetrated through the presser bar 57 of the extruded profile 51 located on the left side in the figure, and a nut 59 is screwed and fixed. . Next, on the right side of this section 51, another section 5
1 is arranged, the ridge 54 is fitted into the concave groove 55 of the fixed profile 51, and the small flange 58 is made to enter the lower part of the presser bar 57 of the fixed profile 51. By repeating this operation, while joining the plurality of profiles 51 together,
It is fixed on the floor structural material F. Furthermore, friction stir welding is performed using the tool 10 from above the fitting 51a of each of the shaped members 51 along the fitting portion 51a between the ridge 54 and the groove 55. As a result, as shown in FIG. 6B, a joining line W having a small depth is formed across the fitting portion 51a of the ridge 54 and the concave groove 55. By applying the joining line W by the friction stir welding to the fitting portion 51a on the upper surface side between the desired number of shaped members 51, a floor unit having a planar watertight structure and a strong connection structure with a desired size. 50 can be formed.

【００３４】図７は、別の形態の水密構造に関する。図
７(Ａ)は、アルミニウム板６１同士を接合した平面状の
水密構造６０に関する。各アルミニウム板６１には、図
示で左端にその板本体６２から板厚分だけ上側に偏寄し
た端縁６３が形成されている。そして、隣接する複数の
アルミニウム板６１の平坦な端部６２ａと上記端縁６３
を重ね合わせて重合部６４を形成すると共に、各アルミ
ニウム板６１の板本体６２同士が同一平面内に位置する
ようにして、各アルミニウム板６１をその長手及び幅方
向に対し拘束する。そして、上記重合部５９に沿って一
方側から前記工具１０を用いて摩擦撹拌接合を施す。FIG. 7 relates to another type of watertight structure. FIG. 7A relates to a planar watertight structure 60 in which aluminum plates 61 are joined to each other. Each aluminum plate 61 is formed at its left end with an edge 63 deviated upward from the plate main body 62 by the plate thickness. Then, the flat ends 62a of the plurality of adjacent aluminum plates 61 and the edge 63
Are overlapped to form the overlapped portion 64, and the aluminum plates 61 are restrained in the longitudinal and width directions such that the plate main bodies 62 of the aluminum plates 61 are located in the same plane. Then, friction stir welding is performed using the tool 10 from one side along the overlapping portion 59.

【００３５】その結果、図示のように各アルミニウム板
６１の端部６２ａと端縁６３とに跨って、深さの浅い接
合線Ｗが形成される。各アルミニウム板６１の平面視に
おける矩形の互いに隣接する２辺に上記の偏寄した端縁
６３を形成しておき、これらアルミニウム板６１同士を
上記接合線Ｗにより互いに全周辺を接合することによ
り、平面状の広い水密構造６０を形成することができ
る。尚、一部のアルミニウム板６１の中間を直角等に折
り曲げ、この曲ったアルミニウム板６１を直線状にして
接合し、上記の平坦な多数のアルミニウム板６１同士の
水密構造６０の全周辺に同様にして上記接合線Ｗにより
垂直に接合することにより、立体的な水密構造として、
水密性を確実にした貯水槽やプールを構成することもで
きる。As a result, a junction line W having a small depth is formed across the end portion 62a and the end edge 63 of each aluminum plate 61 as shown. The above-described offset edges 63 are formed on two adjacent sides of a rectangular shape of each aluminum plate 61 in a plan view, and the entire periphery of the aluminum plates 61 is joined to each other by the joining line W. A wide watertight structure 60 having a planar shape can be formed. In addition, the middle of some aluminum plates 61 is bent at a right angle or the like, and the bent aluminum plates 61 are joined in a straight line, and the same is applied to the entire periphery of the watertight structure 60 between the above-mentioned many flat aluminum plates 61. By joining vertically by the joining line W, as a three-dimensional watertight structure,
Water tanks and pools that ensure watertightness can also be configured.

【００３６】図７(Ｂ)は、アルミニウム板６６同士を接
合した平面状の水密構造６５に関する。各アルミニウム
板６６は、その板本体６７の端縁が断面略Ｕ字形状に折
り曲げられた曲折縁６８を有する。また、隣接する複数
のアルミニウム板６６の曲折縁６８同士は、図示のよう
に互いに巻付き、複数の重合部６９を形成する。そし
て、各アルミニウム板６６をその長手及び幅方向に対し
拘束し、何れかの重合部６９に沿って前記工具１０を用
いて摩擦撹拌接合を施す。その結果、図示のように各ア
ルミニウム板６６の曲折縁６８同士の厚さ方向に跨っ
て、深さの浅い接合線Ｗが形成される。該接合線Ｗを複
数のアルミニウム板６６同士の全周辺における重合部６
９に沿って形成することにより、平面状の広い水密構造
６５を形成することができる。尚、一部のアルミニウム
板６６を前記のように折り曲げものにすることで、立体
的な水密構造にすることもできる。FIG. 7B relates to a planar watertight structure 65 in which aluminum plates 66 are joined together. Each aluminum plate 66 has a bent edge 68 in which the edge of the plate body 67 is bent into a substantially U-shaped cross section. The bent edges 68 of the adjacent aluminum plates 66 are wound around each other as shown to form a plurality of overlapping portions 69. Then, each aluminum plate 66 is constrained in its longitudinal and width directions, and friction stir welding is performed along any one of the overlapping portions 69 using the tool 10. As a result, a junction line W having a small depth is formed across the thickness direction of the bent edges 68 of the aluminum plates 66 as shown in the figure. The joining line W is connected to the overlapping portion 6 around the entire periphery of the plurality of aluminum plates 66.
By forming along line 9, a wide water-tight structure 65 having a planar shape can be formed. It is to be noted that a three-dimensional watertight structure can be obtained by bending a part of the aluminum plate 66 as described above.

【００３７】図７(Ｃ)は、断面半円形にしたやや厚肉の
アルミニウム板７２同士を接合した水密構造を有する円
筒体７０に関する。半円形に湾曲する両アルミニウム板
７２は、図７(ｃ)に示すように、その端縁７３同士が当
接して突合わせ部７４を形成する。この突合わせ部７４
に沿って内側から前記工具１０を用いて摩擦撹拌接合を
施すと、各端縁７３に跨って深さの浅い接合線Ｗが形成
される。係る接合線Ｗを両アルミニウム板７２同士の各
突合わせ部７４に沿って形成することにより、円筒体の
水密構造を有する円筒体７０を形成することができる。
この円筒体７０は、複数の架台７１上に支持され、その
両端を別途に図示しないアルミニウムからなる円形の鏡
板により閉塞することにより、各種の薬液や溶液等の貯
蔵用又は輸送用タンクとすることができる。尚、接合線
Ｗは、タンクの仕様に応じて突合わせ部７４の内外両側
に沿って形成することもできる。FIG. 7C relates to a cylindrical body 70 having a watertight structure in which semi-circular cross-sectionally thick aluminum plates 72 are joined together. As shown in FIG. 7C, the two aluminum plates 72 that are curved in a semicircle form an abutting portion 74 when their edges 73 come into contact with each other. This butting part 74
When the friction stir welding is performed using the tool 10 from the inside along the edge, a joining line W having a small depth is formed across each edge 73. By forming such a joining line W along each butted portion 74 between the aluminum plates 72, the cylindrical body 70 having a watertight structure of the cylindrical body can be formed.
This cylindrical body 70 is supported on a plurality of pedestals 71, and its both ends are separately closed by a circular end plate made of aluminum (not shown) to form a tank for storing or transporting various chemical solutions or solutions. Can be. The joining line W can be formed along the inside and outside of the butting portion 74 according to the specifications of the tank.

【００３８】図７(Ｄ)は、アルミニウムでやや厚肉の押
出形材７７同士を接合した水密構造を有するパイプ７５
に関する。中央が湾曲する上下一対の各形材７７の両端
には、水平なフランジ７８が外側に向けて対称に突設さ
れている。両形材７７のフランジ７８同士を突合わせ、
その突合わせ部７８ａに沿って前記工具１０を用いて摩
擦撹拌接合を施すと、図７(ｄ)に示すように、各形材７
７の端部に跨って深さの浅い接合線Ｗが形成され、円筒
状の密封構造を有するパイプ７５を得ることができる。
このパイプ７５は複数の架台７６の湾曲部７６ａにその
下側面を支持されると共に、上記左右の各フランジ７
８，７８はボルト７９等により、架台７６左右の各中空
部７６ｂの上に固定される。即ち、各形材７７同士の結
合強度は上記ボルト７９等により得られるので、内側の
接合線Ｗは浅いものにできる。FIG. 7D shows a pipe 75 having a water-tight structure in which extruded members 77 each having a relatively large thickness made of aluminum are joined to each other.
About. At both ends of a pair of upper and lower members 77 whose center is curved, horizontal flanges 78 project symmetrically outward. Butts the flanges 78 of the two profile members 77,
When friction stir welding is performed using the tool 10 along the butt portion 78a, as shown in FIG.
The joining line W having a small depth is formed across the end of the pipe 7, and a pipe 75 having a cylindrical sealing structure can be obtained.
The lower surface of the pipe 75 is supported by the curved portions 76a of the plurality of frames 76, and each of the right and left flanges 7
8, 78 are fixed on the left and right hollow portions 76b of the gantry 76 by bolts 79 or the like. That is, since the joint strength between the members 77 is obtained by the bolt 79 or the like, the inner joint line W can be made shallow.

【００３９】図８は複数のパネル８２同士を接合した箱
形状の水密構造８０を示す。各パネル８５は、一対のア
ルミニウム板８７，８７と、その間に充填したグラスウ
ール等の芯材８６とからなるサンドイッチ構造を有す
る。また、互いに隣接する各パネル８５間には、パネル
８５の端部同士を直線状に連結するアルミニウムの押出
形材８１、又は直角に連結するアルミニウムの押出形材
８３が配置される。各形材８１，８３の中央に中空部８
２が位置し、その両側又は直角方向にパネル８５の端部
を受け入れる凹部８４が形成されている。FIG. 8 shows a box-shaped watertight structure 80 in which a plurality of panels 82 are joined together. Each panel 85 has a sandwich structure composed of a pair of aluminum plates 87, 87 and a core material 86 such as glass wool filled between them. Further, between the panels 85 adjacent to each other, an extruded aluminum member 81 connecting the ends of the panels 85 linearly or an extruded aluminum member 83 connected at a right angle is arranged. A hollow portion 8 is provided at the center of each of the profiles 81 and 83.
2 are formed, and concave portions 84 are formed on both sides or at right angles thereof to receive the ends of the panel 85.

【００４０】各形材８１，８３の凹部８４にパネル８５
の端部を挿入し、図９(Ａ)及び(Ｂ)に示すように、ブラ
インドリベット８９を打込み形材８１又は８３とパネル
８５とを固定する。更に、各形材８１，８３の中空部８
２に沿って前記工具１０を用いて摩擦撹拌接合を施す
と、各形材８１又は８３とパネル８５のアルミニウム板
８７間の重合部８０ａに深さの浅い接合線Ｗが形成され
る。係る接合線Ｗを形材８１又は８３とパネル８５に沿
って順次形成することにより、箱形状の水密構造８０を
形成することができる。尚、図８にて大引等の床部構造
材Ｆ上には前記押出形材２１と同様な断面の形材８８を
複数敷設し、図示しないネジ等により床部構造材Ｆに固
定されると共に、互いに接合線Ｗで接合する。端部の形
材８８はコーナ部の形材８３とリベット８９で固定さ
れ、接合線Ｗが施されている。A panel 85 is formed in the recess 84 of each of the profiles 81 and 83.
Then, as shown in FIGS. 9A and 9B, a blind rivet 89 is driven into the shape member 81 or 83 and the panel 85 is fixed. Further, the hollow portion 8 of each of the profiles 81, 83
When the friction stir welding is performed using the tool 10 along 2, a joining line W having a small depth is formed at the overlapping portion 80 a between each of the shape members 81 or 83 and the aluminum plate 87 of the panel 85. The box-shaped watertight structure 80 can be formed by sequentially forming the joining line W along the shape member 81 or 83 and the panel 85. In FIG. 8, a plurality of sections 88 having the same cross section as the extruded section 21 are laid on the floor section F such as a pull-out section and fixed to the floor section F by screws or the like (not shown). At the same time, they are joined to each other at a joining line W. The end section 88 is fixed to the corner section 83 by rivets 89 and a joining line W is provided.

【００４１】図９(Ａ)及び(Ｂ)に示すように、天井側の
形材８１に対し梁等の屋根部構造材Ｌからタッピングネ
ジ９０を螺入して固定したり、コーナ部の形材８３に対
し屋根部構造材Ｌから同じネジ９０を螺入して固定し
て、水密構造８０を支持しても良い。また、図９(Ａ)に
替えて、図９(ａ)に示すように、形材９１を梁等の屋根
部構造材Ｌに固定することもできる。即ち、断面略工の
字形の形材９１の各凹部９３内には芯材９６とアルミニ
ウム板９７とからなるパネル９５の端部が挿入され、形
材９１の各フランジ９２からブラインド・リベット９９
と接合線Ｗとが施される。形材９１の上側には圧肉のリ
ブ９４が立設し、屋根部構造材Ｌとボルト・ナット９８
によって支持される。As shown in FIGS. 9 (A) and 9 (B), tapping screws 90 are screwed into the roof-side structural member 81 such as beams from the roof-side structural member L, and the shape of the corner portion is formed. The watertight structure 80 may be supported by screwing and fixing the same screw 90 from the roof structural member L to the member 83. Also, instead of FIG. 9A, as shown in FIG. 9A, the profile 91 can be fixed to a roof structural material L such as a beam. That is, an end of a panel 95 composed of a core material 96 and an aluminum plate 97 is inserted into each concave portion 93 of the substantially shaped cross section 91, and a blind rivet 99 is formed from each flange 92 of the profile 91.
And the joining line W are performed. On the upper side of the section 91, a pressure rib 94 is erected, and the roof structural member L and the bolt / nut 98 are provided.
Supported by

【００４２】更に、図９(Ｂ)に替え、図９(ｂ)に示すよ
うに、形材１００を梁等の屋根部構造材Ｌに固定するこ
ともできる。即ち、形材８３と同様な断面を有する形材
１００の各凹部１０３内には芯材１０６とアルミニウム
板１０７からなるパネル１０５の端部が挿入され、形材
１００の各フランジ１０１からリベット１０９と浅い接
合線Ｗが施されている。形材１００の上側には圧肉のリ
ブ１０５が立設し、屋根部構造材Ｌとボルトナット１０
８によって支持される。尚、上記水密構造８０を電磁波
シールドルーム、防音室、食品加工室、又は医療用手術
・処置室等に適用することもできる。また、パネル８５
等はサンドイッチ構造に限らず、アルミニウム板８７の
みを箱型形状に折り曲げ加工したものを用いても良い。Further, instead of FIG. 9B, as shown in FIG. 9B, the profile 100 can be fixed to a roof structural material L such as a beam. That is, the end of the panel 105 composed of the core material 106 and the aluminum plate 107 is inserted into each recess 103 of the profile 100 having the same cross section as the profile 83, and the rivet 109 is inserted from each flange 101 of the profile 100. A shallow junction line W is provided. On the upper side of the profile 100, a pressure rib 105 is erected, and the roof structural member L and the bolt nut 10
8 supported. The watertight structure 80 can be applied to an electromagnetic shield room, a soundproof room, a food processing room, a medical operation / treatment room, and the like. Panel 85
The structure is not limited to the sandwich structure, and a material obtained by bending only the aluminum plate 87 into a box shape may be used.

【００４３】図１０は、更に別個の形態の水密構造に関
する。図１０(Ａ)は、アルミニウムで複数の押出形材１
１２,１１４,１１６を接合した断面角筒状の水密構造を
有するダクト１１０を示す。形材１１２は断面略チャン
ネル形で、その底板となる形材１１６との間に一対のコ
ーナ形材１１４が介在されている。そして、各形材１１
２,１１４,１１６間の突合わせ部に沿って、前記工具１
０を用いて外側から摩擦撹拌接合を施すと、深さの浅い
接合線Ｗが形成され、断面略正方形の水密構造を有する
ダクト１１０を得ることができる。このダクト１１０
は、図示のようにブラケット１１８上に図示しないＵ形
ボルトとナットによって固定され、内部に装入される各
種ケーブルや配管類を水密性を持たせて覆うものであ
る。FIG. 10 relates to a further separate form of watertight structure. FIG. 10 (A) shows a plurality of extruded profiles 1 made of aluminum.
A duct 110 having a water-tight structure having a rectangular cross-section in which 12, 114 and 116 are joined is shown. The profile 112 has a substantially channel-shaped cross section, and a pair of corner profiles 114 is interposed between the profile 112 and a profile 116 serving as a bottom plate. And each section 11
Along the butt between 2,114,116, the tool 1
When friction stir welding is performed from the outside using 0, a joining line W having a small depth is formed, and a duct 110 having a watertight structure having a substantially square cross section can be obtained. This duct 110
Is provided with a U-shaped bolt and nut (not shown) on the bracket 118 as shown in the figure, and covers various cables and pipes to be inserted therein with water tightness.

【００４４】図１０(Ｂ)は、アルミニウムで一対の押出
形材１２２を接合した六角筒形状の水密構造を有するケ
ーブルカバー１２０を示す。各形材１２２は、断面略台
形状で、一端に平板の端部１２４を、他端に厚肉で断面
略Ｌ形の端部１２６をそれぞれ一体に有している。係る
一対の形材１２２同士を点対称にして対向し、各端部１
２４をＬ形の各端部１２６を当接して、一対の突合わせ
部を対称に形成する。係る突合わせ部に沿って、前記工
具１０を用いて外側から摩擦撹拌接合を施すと、各端部
１２４，１２６間に跨って深さの浅い接合線Ｗが形成さ
れ、断面六角形の水密構造を有するケーブルカバー１２
０を得ることができる。尚、係る水密構造の六角柱体
は、例えば給排気用ダクトや建物の間柱、或いは建具の
方立材等にも使用できる。また、各形材の断面形状を変
更することにより任意の多角形断面のケーブルカバー等
にすることもできる。FIG. 10B shows a cable cover 120 having a hexagonal cylindrical watertight structure in which a pair of extruded members 122 are joined with aluminum. Each section 122 has a substantially trapezoidal cross section, and has a flat plate end 124 at one end and a thick end L-shaped cross section 126 at the other end. The pair of shaped members 122 face each other with point symmetry, and each end 1
24 abuts the L-shaped end portions 126 to form a pair of butted portions symmetrically. When friction stir welding is performed from the outside using the tool 10 along the butt portion, a joining line W having a shallow depth is formed between the ends 124 and 126, and a watertight structure having a hexagonal cross section is formed. Cable cover 12 having
0 can be obtained. The watertight hexagonal column can be used, for example, as an air supply / exhaust duct, a stud of a building, or a cubic material of a fitting. By changing the cross-sectional shape of each section, a cable cover or the like having an arbitrary polygonal cross section can be obtained.

【００４５】また、図１０(Ｃ)は、アルミニウムで一対
の押出形材１３１を接合した円筒形の水密構造を有する
パイプ１３０を示す。各押出形材１３１はやや厚肉で且
つ断面半円形であり、一端に平らな端部１３２と、他端
に断面略Ｌ字形の端部１３３とを有する。両形材１３６
同士を点対称にして対向し、Ｌ字形の各端部１３３に他
方の各端部１３２を当接して、一対の突合わせ部１３４
を対称に形成する。係る突合わせ部１３４に沿って、前
記工具１０を用いて摩擦撹拌接合を施すと、各端部１３
２，１３３間に跨って深さの浅い接合線Ｗが形成され、
断面円形の水密構造を有するパイプ１３０を得ることが
できる。FIG. 10C shows a pipe 130 having a cylindrical water-tight structure in which a pair of extruded members 131 are joined by aluminum. Each extruded section 131 is slightly thick and semicircular in cross section, and has a flat end 132 at one end and an end 133 having a substantially L-shaped cross section at the other end. 136
They are opposed to each other with point symmetry, and the other end 132 is brought into contact with the L-shaped end 133 to form a pair of abutting portions 134.
Are formed symmetrically. When friction stir welding is performed using the tool 10 along the butting portion 134, each end 13
A junction line W having a shallow depth is formed between 2,133.
A pipe 130 having a watertight structure with a circular cross section can be obtained.

【００４６】更に、図１０(Ｄ)は、アルミニウムで一対
の断面半円形の押出形材１３６をその両端における内凸
条１３７と外凸条１３８を互いに嵌合し突合わせて接合
したパイプ１３５の断面を示す。上記凸条１３８に隣接
する突合わせ部１３９に沿って外側から、前記工具１０
を用いて摩擦撹拌接合を施すと、深さの浅い接合線Ｗが
形成され、断面円形の水密構造を有するパイプ１３５が
得られる。上記水密構造を有するパイプ１３０，１３５
は、各種の液体や気体用の低圧送給用パイプや通信ケー
ブルの保護カバー等に使用することができる。Further, FIG. 10 (D) shows a pipe 135 in which a pair of semi-circular extruded profiles 136 made of aluminum are formed by fitting the inner ridge 137 and the outer ridge 138 at both ends of the extruded profile 136 to each other. 3 shows a cross section. From outside along the butting portion 139 adjacent to the ridge 138, the tool 10
When the friction stir welding is performed using the method, a joining line W having a small depth is formed, and a pipe 135 having a watertight structure having a circular cross section is obtained. Pipes 130 and 135 having the above watertight structure
Can be used for low-pressure feed pipes for various liquids and gases, protective covers for communication cables, and the like.

【００４７】本発明は、以上に説明した各形態に限定さ
れるものではない。例えば、アルミニウムの押出形材と
アルミニウム板材の端部同士で、突合わせ部又は重合部
を形成して、これらに沿って前記接合線Ｗを形成した水
密構造を形成することもできる。また、アルミニウムか
らなる複数の押出形材を長手方向の端部同士において突
合わせ部を形成し、これに沿って接合線Ｗを形成した
り、或いは長手方向と幅方向の各端部同士を連続して接
合線Ｗにより接合して、大型の平面状又は立体状の水密
構造を形成することもできる。The present invention is not limited to the embodiments described above. For example, an abutting portion or an overlapping portion may be formed between the extruded shape of aluminum and the end of the aluminum plate to form a watertight structure along which the joining line W is formed. In addition, a plurality of extruded sections made of aluminum are formed with abutting portions at ends in the longitudinal direction, and a joining line W is formed along this end, or each end in the longitudinal direction and the width direction is connected to each other. And joined by the joining line W to form a large planar or three-dimensional watertight structure.

【００４８】更に、平面視で矩形、正五六角形、又は正
六角形を呈する複数のアルミニウム板材がそれぞれ所望
の曲率で全方向に湾曲しており、これらのアルミニウム
板材の端部同士の突合わせ部又は重合部に沿って前記接
合線Ｗを形成することにより、全体が球形の水密構造を
形成することもできる。且つ、各アルミニウム板材の曲
率を相違させることで、楕円形体を呈する水密構造を得
ることも可能である。また、比較的薄肉のアルミニウム
板材の端部同士によって突合わせ部を形成する場合に
は、摩擦撹拌接合を施す側面と反対側に別の裏当材とな
るアルミニウム板をロウ付け等によって予め仮止めして
おくこともできる。尚、本発明の水密構造は、前述した
他に、例えば側壁と屋根材の半分を一体にした断面逆Ｌ
型の荷物室ユニットを上下に開閉するウィング車両や、
各種の船舶の船体や操舵室等の上部構造体等に適用する
ことも可能である。Further, a plurality of aluminum plate members each having a rectangular shape, a regular pentagonal shape, or a regular hexagonal shape in a plan view are curved in all directions at desired curvatures, respectively. Alternatively, by forming the joining line W along the overlapping portion, a watertight structure having a spherical shape as a whole can be formed. In addition, it is possible to obtain a watertight structure having an elliptical shape by making the curvature of each aluminum plate material different. When the butted portion is formed by the ends of a relatively thin aluminum plate, another aluminum plate serving as a backing material is temporarily fixed to the side opposite to the side surface to be subjected to friction stir welding in advance by brazing or the like. You can also keep. It should be noted that the watertight structure of the present invention has, besides the above, for example, a cross-section reverse L in which a half of a side wall and a roof material are integrated.
A wing vehicle that opens and closes the luggage compartment unit up and down,
The present invention can also be applied to hulls of various types of ships, upper structures such as wheelhouses, and the like.

【００４９】[0049]

【発明の効果】以上において説明した本発明の水密構造
によれば、事前の加工や準備作業を最小限にして、アル
ミニウム製の複数の押出形材や板材同士間に浅い接合線
を形成することにより、確実且つ安定した接合による水
密性を付与することができ、且つ後加工も殆んど要しな
くて済む。しかも、浅い接合線によって充分な水密構造
を要する接合部において、摩擦ピンの小さい工具を用い
るので、接合装置の軽量・簡素化にも寄与し、現場施工
も容易となる。これにより、摩擦撹拌接合の技術を有効
に活用することができる。また、請求項３の水密構造に
よれば、複数の押出形材同士による嵌合部や係合部の付
近に、接合線を形成すべき突合わせ部が形成されるの
で、摩擦撹拌接合の工具の位置決めが容易且つ正確にな
り、且つ上記嵌合部等により形材間の接合強度が保たれ
るので、浅い接合線によって確実に水密性を得ることが
できる。更に、請求項５の水密構造によれば、複数のアル
ミニウム板材の曲折縁同士による接合と溶着線による接
合との双方により、優れた水密性を得ることができる。
加えて、請求項６の水密構造によれば、複数の構築用パ
ネルにより形成される壁面や床面等、或いは、各種用途
の部屋又は室内に高い水密性を与えることができる。According to the above-described watertight structure of the present invention, it is possible to form a shallow joint line between a plurality of extruded shapes and plates made of aluminum by minimizing prior processing and preparation work. Thereby, water tightness can be provided by reliable and stable joining, and almost no post-processing is required. In addition, since a tool having a small friction pin is used at a joint that requires a sufficient watertight structure with a shallow joining line, it contributes to the weight and simplification of the joining apparatus and facilitates on-site construction. Thereby, the technique of friction stir welding can be effectively utilized. According to the watertight structure of the third aspect, a butt portion where a joining line is to be formed is formed near a fitting portion or an engaging portion formed by a plurality of extruded profiles, so that a friction stir welding tool is formed. Is easy and accurate, and the joint strength between the shaped members is maintained by the fitting portion and the like, so that the watertightness can be surely obtained by the shallow joint line. Further, according to the watertight structure of the fifth aspect, excellent watertightness can be obtained by both the joining by the bent edges of the plurality of aluminum plate members and the joining by the welding wire.
In addition, according to the watertight structure of the sixth aspect, high watertightness can be given to a wall surface, a floor surface, or the like formed by a plurality of construction panels, or a room or room for various uses.

【図面の簡単な説明】[Brief description of the drawings]

【図１】(Ａ)は押出形材同士の突合わせ状態を示す断面
図、(Ｂ)は本発明の水密構造の一形態を示す部分断面
図、(Ｃ)は(Ｂ)中の一点鎖線部分Ｃの拡大図。FIG. 1A is a cross-sectional view showing a butted state of extruded profiles, FIG. 1B is a partial cross-sectional view showing one embodiment of a watertight structure of the present invention, and FIG. 1C is a dashed line in FIG. The enlarged view of the part C.

【図２】(Ａ)〜(Ｃ)及び(ａ)〜(ｃ)は本発明に用いる摩
擦撹拌溶接の各工程を示す部分概略図。FIGS. 2A to 2C are partial schematic views showing each step of friction stir welding used in the present invention.

【図３】(Ａ)及び(Ｂ)は図１の水密構造の適用例を示す
部分断面図。FIGS. 3A and 3B are partial cross-sectional views showing an application example of the watertight structure of FIG. 1;

【図４】(Ａ)は異なる形態の水密構造を示す断面図、
(Ｂ)は(Ａ)中の一点鎖線部分Ｂの拡大図。FIG. 4A is a cross-sectional view showing a watertight structure in a different form;
(B) is an enlarged view of an alternate long and short dash line portion B in (A).

【図５】(Ａ)〜(Ｄ)は更に異なる形態の水密構造を示す
断面図又はその部分拡大図。5 (A) to 5 (D) are cross-sectional views or partially enlarged views showing a watertight structure in still another form.

【図６】(Ａ)は別の形態の水密構造を示す部分断面図、
(Ｂ)は(Ａ)中の一点鎖線部分Ｂの拡大図。FIG. 6 (A) is a partial cross-sectional view showing another form of watertight structure,
(B) is an enlarged view of an alternate long and short dash line portion B in (A).

【図７】(Ａ)〜(Ｄ)は更に別の形態の水密構造を示す断
面図、(ｃ),(ｄ)は(Ｃ),(Ｄ)中の部分拡大図。FIGS. 7A to 7D are cross-sectional views showing still another watertight structure, and FIGS. 7C and 7D are partially enlarged views of FIGS. 7C and 7D.

【図８】別異の水密構造の適用例を示す部分断面図。FIG. 8 is a partial cross-sectional view showing an application example of another watertight structure.

【図９】(Ａ),(Ｂ)は図８中の一点鎖線部分Ａ,Ｂの拡大
図、(ａ),(ｂ)は(Ａ),(Ｂ)の変形形態を示す部分断面
図。9 (A) and 9 (B) are enlarged views of dashed-dotted lines A and B in FIG. 8, and FIGS. 9 (a) and 9 (b) are partial cross-sectional views showing modified forms of (A) and (B).

【図１０】(Ａ)〜(Ｄ)は、更に別異の水密構造を示す断
面図。10 (A) to 10 (D) are cross-sectional views showing still another watertight structure.

【図１１】(Ａ)〜(Ｄ)は、従来の技術による水密構造を
示す部分断面図。FIGS. 11A to 11D are partial cross-sectional views showing a watertight structure according to a conventional technique.

【図１２】(Ａ),(Ｂ),(ａ)は一般的な摩擦撹拌接合の各
工程を示す概略図、(Ｃ)は(Ｂ)中のＣ−Ｃ断面図。FIGS. 12A, 12B and 12A are schematic views showing respective steps of general friction stir welding, and FIG. 12C is a cross-sectional view taken along the line CC in FIG. 12B.

【符号の説明】 １,２０,６０,６５,８０……………………………………
……………水密構造 ２,２１,４１,４６,５１,77,81,83,91,100,112,114,12
2,131,136…押出形材 ８,２４,２６,124,126,132,133……………………………
……………端部 ９,２９,３９,４９,５９,７４,７８ａ,88,118,128,134,
139………突合わせ部 １０………………………………………………………工具 １４………………………………………………………表面
抑え部 １６………………………………………………………摩擦
ピン ２５，２８………………………………………………係合
部 ３０………………………………………………………アオ
リ(水密構造) ３１,３２,３３…………………………………………レー
ル(押出形材) ３３,４３,５３，８２…………………………………中空
部 ４０………………………………………………………間仕
切(水密構造) ５０………………………………………………………床ユ
ニット(水密構造) ５１ａ……………………………………………………嵌合
部 ６１,６６,７２，８７…………………………………アル
ミニウム板(板材) ６３，７３………………………………………………端縁
(端部) ６４,６９,８０ａ………………………………………重合
部 ６８………………………………………………………曲折
縁(端部) ７０………………………………………………………円筒
体(水密構造) ７５,１３０,１３５……………………………………パイ
プ(水密構造) ８５………………………………………………………パネ
ル １１０……………………………………………………ダク
ト(水密構造) １２０……………………………………………………ケー
ブルカバー(水密構造) Ｗ…………………………………………………………接合
線[Description of Signs] 1,20,60,65,80 ………………………………….
…………… Watertight structure 2,21,41,46,51,77,81,83,91,100,112,114,12
2,131,136… Extruded profiles 8,24,26,124,126,132,133 …………………………
…………… Ends 9,29,39,49,59,74,78a, 88,118,128,134,
139 butt part 10 ………………………………………………………………… Tool 14 …………………………………………………… … Surface holding part 16 …………………………… Friction pins 25, 28 …………………………………………… Engagement part 30 ……………………………… (watertight structure) 31,32,33 …………………………………… … Rail (extruded shape) 33,43,53,82 ……………………… Hollow part 40 ……………………………………………………… … Partitioner (watertight structure) 50 …………………………………… Floor unit (watertight structure) 51a …………………………………………… ... Fitting portions 61, 66, 72, 87 ... Aluminum plates (plate materials) 63, 73 ... ……………………………………
(End) 64,69,80a .................. Overlapping section 68 ........................................................ Bent edge (End) 70 ……………………………………………………………………………………………………………………………………………………………… (75,130,135) … Pipe (watertight structure) 85 …………………………………… Panel 110 …………………………………………… Duct (watertight structure) 120 ………………………………… Cable cover (watertight structure) W ………………………………………………………………… …………… Joint line

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成１０年６月９日[Submission date] June 9, 1998

【手続補正１】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】００１７[Correction target item name] 0017

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【００１７】この場合、工具の回転速度３０００から３
００００ｒｐｍ、送り速度０.０２〜２ｍ／分で、上記
工具に加える押し込み力を約１０Ｎ〜１０００Ｎで行う
ことができる。上記回転数を大きくしたのは摩擦ピンの
外径が小さいため、アルミニウムの軟化に必要な加熱量
を得るために必要となるためである。また、押し込み力
が小さくてすむのは、摩擦ピンの外径と押し込み深さが
小さくなるためである。これにより小型の装置とするこ
とが可能となり、工事現場等で使用できる可搬式の接合
装置になる。更に、上記回転数を得るには通常の電動モ
ータの他、例えば圧縮空気を用いたタービンモータ
(例：歯科用ドリル)を用いることで実現することができ
る。尚、摩擦ピンの寸法が上記より小さいと加工に高い
精度が必要となり、ピン素材自体の寸法精度がかなり必
要となって実用的でなく、且つ周面に形成する摩擦撹拌
翼も十分に形成することが困難になる。また、上記寸法
より大きいと上記の如く工具に大きな力が必要となり装
置が大掛かりとなり、ピン素材の大きさも大きくせざる
を得なくなり実用的でない。In this case, the rotation speed of the tool is 3000 to 3
At 0000 rpm and at a feed rate of 0.02 to 2 m / min, the pushing force applied to the tool can be about 10 N to 1000 N. The reason why the rotation speed was increased is that the friction pin had a small outer diameter and was required to obtain a heating amount necessary for softening aluminum. The reason why the pushing force is small is that the outer diameter and the pushing depth of the friction pin become small. This makes it possible to reduce the size of the device and to provide a portable joining device that can be used at construction sites and the like. Furthermore, in order to obtain the above rotation speed, in addition to a normal electric motor, for example, a turbine motor using compressed air
(Eg, a dental drill). If the size of the friction pin is smaller than the above, high precision is required for processing, the dimensional accuracy of the pin material itself is considerably required, which is not practical, and the friction stirrers formed on the peripheral surface are also sufficiently formed. It becomes difficult. On the other hand, if the size is larger than the above-mentioned size, a large force is required for the tool as described above, and the device becomes large-sized, and the size of the pin material must be increased, which is not practical.

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】アルミニウム又はアルミニウム合金からな
る部材同士の接合部の表面に沿って摩擦撹拌接合による
接合線を形成することにより、上記部材同士間に水密を
施した、ことを特徴とする水密構造。1. A watertight structure characterized by forming a joining line by friction stir welding along a surface of a joint portion between members made of aluminum or an aluminum alloy, thereby performing watertightness between said members. . 【請求項２】アルミニウム又はアルミニウム合金からな
る部材同士の各端部間の突合わせ部又は重合部に沿っ
て、 摩擦部の長さが０.５〜３.０ｍｍで且つ摩擦部の外径が
０.５〜３.０ｍｍの摩擦ピンと、表面抑え部とを含む工
具を用いる摩擦撹拌接合による接合線を形成することに
より、上記部材同士間に水密を施した、ことを特徴とす
る水密構造。2. A friction portion having a length of 0.5 to 3.0 mm and an outer diameter of a friction portion along an abutting portion or an overlapping portion between ends of members made of aluminum or an aluminum alloy. A watertight structure, wherein watertightness is provided between the members by forming a joining line by friction stir welding using a tool including a friction pin of 0.5 to 3.0 mm and a surface suppressing portion. 【請求項３】前記突合わせ部が、アルミニウム又はアル
ミニウム合金からなる複数の押出形材同士の嵌合部又は
係合部の付近に形成される、 ことを特徴とする請求項２に記載の水密構造。3. The watertight structure according to claim 2, wherein the butting portion is formed near a fitting portion or an engaging portion between a plurality of extruded profiles made of aluminum or an aluminum alloy. Construction. 【請求項４】前記部材が、中空部又は半中空部を有する
断面全体が略矩形の中空状押出形材であり、これら複数
の形材同士の端部における少なくとも一方の側面の突合
わせ部に沿って、前記接合線が形成されている、 ことを特徴とする請求項２又は３に記載の水密構造。4. The member is a hollow extruded profile having a substantially rectangular cross section having a hollow portion or a semi-hollow portion, and is formed at an abutting portion on at least one side surface at an end portion of the plurality of profiles. The watertight structure according to claim 2, wherein the joining line is formed along the joint. 【請求項５】前記部材が板材であり、且つ複数の該板材
同士の端縁が、互いに巻付く曲折縁であり、且つ各曲折
縁を巻付けた重合部に沿って、前記接合線が形成されて
いる、ことを特徴とする請求項２に記載の水密構造。5. The member is a plate material, and edges of the plurality of plate materials are bent edges wound around each other, and the joining line is formed along an overlapped portion around each bent edge. The watertight structure according to claim 2, wherein: 【請求項６】前記部材が板材であり、該板材が構築用パ
ネルの端縁を構成し、該端縁とパネル同士間に介在する
押出形材との重合部に沿って、前記接合線が形成される
ことにより複数の上記構築用パネル間に水密が施され
る、 ことを特徴とする請求項２に記載の水密構造。6. The joining member is a plate, and the plate constitutes an edge of the construction panel, and the joining line is formed along an overlapping portion of the edge and an extruded member interposed between the panels. The watertight structure according to claim 2, wherein watertightness is provided between the plurality of construction panels by being formed. 【請求項７】前記部材を接合した前記水密構造の用途
が、車両用又は建築用の壁面、又は、屋根面である、こ
とを特徴とする請求項１乃至６の何れかに記載の水密構
造。7. The watertight structure according to claim 1, wherein the use of the watertight structure to which the members are joined is a wall surface for a vehicle or a building, or a roof surface. .