【０００１】[0001]
【発明の属する技術分野】本発明は構造体を構成する中
空形材に関するものである。例えば、鉄道車両や建築物
等に使用されるアルミニウム合金製の中空の押し出し形
材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow member forming a structure. For example, the present invention relates to a hollow extruded shape member made of an aluminum alloy used for railway vehicles and buildings.
【０００２】[0002]
【従来の技術】摩擦攪拌接合方法は、接合部に挿入した
丸棒（回転工具という。）を回転させながら接合線に沿
って移動させ、接合部を発熱、軟化させ、塑性流動さ
せ、固相接合する方法である。回転工具は、接合部に挿
入する小径部と、外部に位置する大径部とからなる。小
径部と大径部は同軸である。小径部と大径部との境は接
合部に若干挿入されている。これは特開平０９−３０９
１６４号公報（ＥＰ０７９７０４３Ａ２）に示されてい
る。この文献の図９には中空の押し出し形材の二面の接
合を一方の面から行うことが示されている。また、中空
形材の変形を防止する継ぎ手が示されている。2. Description of the Related Art In the friction stir welding method, a round bar (referred to as a rotary tool) inserted into a joint is rotated and moved along a joint line to heat the joint, soften it, and cause it to plastically flow to solid-phase. It is a method of joining. The rotary tool is composed of a small diameter portion to be inserted into the joint and a large diameter portion located outside. The small diameter portion and the large diameter portion are coaxial. The boundary between the small diameter portion and the large diameter portion is slightly inserted in the joint portion. This is Japanese Patent Laid-Open No. 09-309
No. 164 (EP0797043A2). FIG. 9 of this document shows that the two faces of the hollow extruded frame are joined from one face. Also, a joint for preventing deformation of the hollow frame is shown.
【０００３】[0003]
【発明が解決しようとする課題】摩擦攪拌接合がアーク
溶接と異なる点は、回転工具の挿入によって被接合部材
に大きな荷重が作用することである。この荷重は主とし
て回転工具の挿入方向（軸心の方向）に作用する。つま
り、回転工具の挿入力が被接合部材に作用する。The difference between friction stir welding and arc welding is that a large load acts on the members to be welded by the insertion of the rotary tool. This load mainly acts in the inserting direction (axial direction) of the rotary tool. That is, the insertion force of the rotary tool acts on the members to be joined.
【０００４】中空の押し出し形材を摩擦攪拌接合する場
合、面板や二枚の平行な面板を接続するリブに対して前
記挿入力が作用し、中空形材が変形する。このことか
ら、継ぎ手部の変形を防止する構造が必要がある。In the case of friction stir welding of a hollow extruded shape member, the insertion force acts on the face plate or the rib connecting the two parallel face plates to deform the hollow shape member. Therefore, it is necessary to have a structure that prevents the joint portion from being deformed.
【０００５】この変形防止手段が前記特開平９−３０９
１６４号公報（ＥＰ０７９７０４３Ａ２）に示されてい
る。これは接合部に、二枚の面板を接合する垂直な板
（縦リブという。）を設けたものである。縦リブは回転
工具の軸心の延長線上にある。縦リブは二枚の面板を接
続するリブの一つである。縦リブには大きな荷重が集中
的に作用するために、板厚を大きくする必要がある。こ
のため、継ぎ手の軽量化には限界がある。This deformation preventing means is disclosed in Japanese Patent Laid-Open No. 9-309.
No. 164 (EP0797043A2). In this structure, a vertical plate (referred to as a vertical rib) for joining two face plates is provided at the joining portion. The vertical rib is on an extension of the axis of the rotary tool. The vertical rib is one of the ribs that connect the two face plates. Since a large load concentrates on the vertical ribs, it is necessary to increase the plate thickness. Therefore, there is a limit to the weight reduction of the joint.
【０００６】また、この縦リブを別の観点から検討す
る。中空形材に面外曲げ力が作用した場合、全体の剛性
に支配的な部位はリブであることが知られている。面外
曲げ力に対して剛性を向上させるためには、せん断力の
主応力方向である面板に対して４５度の向きにリブを一
致して配置することが望ましい。しかし、二枚の面板に
垂直な縦リブは強度部材としてはほとんど寄与しない。The vertical rib will be examined from another viewpoint. It is known that, when an out-of-plane bending force is applied to the hollow shape member, ribs are the parts that dominate the overall rigidity. In order to improve the rigidity against the out-of-plane bending force, it is desirable to arrange the ribs so as to be aligned at 45 degrees with respect to the face plate, which is the principal stress direction of the shearing force. However, the vertical ribs perpendicular to the two face plates hardly contribute as a strength member.
【０００７】以上より、縦リブは、構造体を強度部材と
して用いる際に剛性の向上にほとんど寄与しないにも関
わらず、摩擦攪拌接合時の挿入力を支持するために板厚
を大きくする必要があるので、継ぎ手の軽量化を困難に
している。本発明の目的は、軽量かつ高剛性な構造体を
形成する中空形材を提供することにある。From the above, although the vertical ribs hardly contribute to the improvement of rigidity when the structure is used as a strength member, it is necessary to increase the plate thickness to support the insertion force at the time of friction stir welding. Therefore, it is difficult to reduce the weight of the joint. An object of the present invention is to provide a hollow frame member that forms a lightweight and highly rigid structure.
【０００８】[0008]
【課題を解決するための手段】上記目的は、二枚の面板
の間を複数のリブでトラス状に接続しており、一方の面
板の端部は他方の面板の端部よりも端部側に突出してお
り、前記一方の面板の端部と前記他方の面板の端部とを
前記トラスを構成する前記リブで接続しており、それぞ
れの端部は摩擦攪拌接合する部分である中空形材を構成
すること、によって達成できる。SUMMARY OF THE INVENTION The above object is, two sheets of the surface plates are connected to the truss-like by a plurality of ribs, endend portion sidethan the end portion of the other surface plate of one of the face plate protrudes, and an end portion ofthe other surface plate and an end portion of the one surface plateare connected by the rib constituting thetruss, it
The ends of these parts are hollow sections that are friction stir welded parts.
To that, by can be achieved.
【０００９】[0009]
【発明の実施の形態】本発明の一実施例を図１から図３
により説明する。車体２００は、側面を構成する側構体
２０１、屋根を構成する屋根構体２０２、床を構成する
台枠２０３、長手方向の端部を構成する妻構体２０４か
らなる。側構体２０１、屋根構体２０２、台枠２０３
は、それぞれ複数の押し出し形材を接合して構成してい
る。押し出し形材の長手方向を車体の長手方向にしてい
る。押し出し形材はアルミニウム合金製の中空形材であ
る。側構体２０１を構成する中空形材１０、２０の構成
および接合方法について説明する。他の箇所、他の構体
も同様である。BEST MODE FOR CARRYING OUT THE INVENTION One embodiment of the present invention is shown in FIGS.
Will be described. The vehicle body 200 includes a side structure 201 that forms a side surface, a roof structure 202 that forms a roof, an underframe 203 that forms a floor, and a gable structure 204 that forms an end in the longitudinal direction. Side structure 201, roof structure 202, underframe 203
Each is formed by joining a plurality of extruded frame members. The longitudinal direction of the extruded frame member is the longitudinal direction of the vehicle body. The extruded profile is a hollow profile made of aluminum alloy. The configuration and joining method of the hollow frame members 10 and 20 that form the side structure 201 will be described. The same applies to other parts and other structures.
【００１０】中空形材１０、２０は二枚の面板１１、１
２、２１、２２とトラス状に配置した複数のリブ１３、
２３からなる。二枚の面板１１、１２（２１、２２）は
実質的に平行である。リブ１３、２３によるトラスのピ
ッチは同一である。トラスはリブ１３、２３、面板１
１、１２、２１、２２の板厚の中心線によって構成され
る。頂点は面板１１、１２、２１、２２側にある。頂点
を黒丸で示している。Hollow frame members 10 and 20 are two face plates 11 and 1, respectively.
2, 21, 22 and a plurality of ribs 13 arranged in a truss shape,
It consists of 23. The two face plates 11, 12 (21, 22) are substantially parallel. The pitch of the truss by the ribs 13 and 23 is the same. The truss has ribs 13 and 23 and face plate 1
It is constituted by the center lines of the plate thicknesses of 1, 12, 21, and 22. The vertices are on the side of the face plates 11, 12, 21, 22. The vertices are indicated by black circles.
【００１１】車内側のトラスの頂点付近には機器を取り
付けるためのレール１９、２９を一体に設けている。レ
ール１９、２９はＬ状の２つの部材からなる。レールは
内装板や椅子等の機器の取り付け座になる。Rails 19 and 29 for mounting equipment are integrally provided near the apex of the truss inside the vehicle. The rails 19 and 29 are composed of two L-shaped members. The rail serves as a seat for mounting equipment such as interior boards and chairs.
【００１２】中空形材１０、２０の接合部の構成を説明
する。中空形材の１０の端部にはトラスの一辺を構成す
るリブ１３Ａがある。面板１２の端部は面板１１の端部
よりも端部側（隣接する中空形材２０側）に突出してい
る。端部のリブ１３Ａは面板１１の端部と面板１２の端
部とを接続している。面板１１の端部と面板１２とを接
続するリブ１３Ｂがある。リブ１３Ａ、１３Ｂによって
２等辺３角形のトラスを構成している。他のトラスも２
等辺３角形のトラスである。The structure of the joint between the hollow frame members 10 and 20 will be described. At the end of 10 of the hollow shape member, there is a rib 13A forming one side of the truss. The end portion of the face plate 12 projects toward the end portion side (the adjacent hollow shape member 20 side) with respect to the end portion of the face plate 11. The rib 13A at the end connects the end of the face plate 11 and the end of the face plate 12. There is a rib 13B that connects the end portion of the face plate 11 and the face plate 12. The ribs 13A and 13B form an isosceles triangular truss. 2 other trusses
It is an equilateral triangle truss.
【００１３】中空形材２０の面板２１の端部は面板２２
の端部よりも端部側（隣接する中空形材１０側）に突出
している。面板２１の端部と面板２２の端部とを接続す
るリブはない。面板２１の端部の内側はリブ１３Ａから
突出させた座１７に重なっている。座１７はリブ１３
Ａ、１３Ｂの交点付近のリブ１３Ａに設けている。面板
１２の端部の内側は、面板２２の端部から突出させた座
２７に重なっている。The end portion of the face plate 21 of the hollow shape member 20 has a face plate 22.
From the end portion of the hollow body 10 adjacent to the hollow shape member 10 side. There is no rib connecting the end of face plate 21 and the end of face plate 22. The inside of the end of the face plate 21 overlaps with the seat 17 protruding from the rib 13A. Seat 17 is rib 13
It is provided on the rib 13A near the intersection of A and 13B. The inside of the end portion of the face plate 12 overlaps the seat 27 protruding from the end portion of the face plate 22.
【００１４】二つの中空形材１０、２０を突き合わせた
とき、リブ２３Ｂ、１３Ａ、および面板２１によって、
２等辺３角形のトラスが構成される。このトラスの大き
さは他のトラスの大きさと同一である。他のトラスも２
等辺３角形である。When the two hollow shape members 10 and 20 are butted, the ribs 23B and 13A and the face plate 21
An isosceles triangular truss is constructed. The size of this truss is the same as the other trusses. 2 other trusses
It is an equilateral triangle.
【００１５】突き合わせ部の外面側には凸部１５、２
５、１６、２６を設けている。凸部１５、２５、１６、
２６の高さ、幅は同一である。この突き合わせ部を摩擦
攪拌接合している。リブ１３Ａ、１３Ｂ、２３Ｂの板厚
は他の箇所のリブ１３、２３の板厚よりも厚い。突き合
わせ面はリブ１３Ａ、１３Ｂ、２３Ｂ、面板１２、２２
によるトラスの頂点の鉛直線（面板の法線に沿った線）
上にある。回転工具２５０の位置の精度から実務的には
トラスの頂点の近傍の鉛直線上に回転工具２５０の軸心
が位置する。中空形材１０、２０は面板１２、２２を下
方にしてベッド２４０に載っている。上方から回転工具
２５０を接合部に挿入して摩擦攪拌接合をする。Protrusions 15 and 2 are provided on the outer surface side of the butted portion.
5, 16, and 26 are provided. Convex parts 15, 25, 16,
The height and width of 26 are the same. This butting portion is friction stir welded. The plate thickness of the ribs 13A, 13B, and 23B is thicker than the plate thickness of the ribs 13 and 23 at other locations. The abutting surfaces are ribs 13A, 13B, 23B, face plates 12, 22
Vertical line of the truss apex (line along the normal of the face plate)
It is above. Due to the accuracy of the position of the rotary tool 250, the axis of the rotary tool 250 is practically located on the vertical line near the apex of the truss. The hollow members 10 and 20 are mounted on the bed 240 with the face plates 12 and 22 facing downward. The rotary tool 250 is inserted into the joint from above and friction stir welding is performed.
【００１６】凸部１５、２５、１６、２６の突き合わせ
面１５ｂ、２６ｂは面板１１、２２に対して垂直であ
る。これに対応する部材に突き合わせ面も垂直である。
垂直面１５ｂ、２６ｂと座１７、２７の上面とによって
凹部を構成している。この凹部は面板１１、２２に沿っ
た面および中空形材１０、２０の端部側に開口してい
る。The abutting surfaces 15b, 26b of the convex portions 15, 25, 16, 26 are perpendicular to the face plates 11, 22. The abutting surface is also perpendicular to the corresponding member.
The vertical surfaces 15b and 26b and the upper surfaces of the seats 17 and 27 form a recess. This recess is open to the surface along the face plates 11 and 22 and the end portions of the hollow frame members 10 and 20.
【００１７】突き合わせ面１５ｂ、２６ｂは面板１１、
１２、２１、２２に直交している。つまり、面板の法線
に沿っている。突き合わせ面１５ｂ、２６ｂは中空形材
１０、２０の厚さ方向に沿っている。突き合わせ面１５
ｂ、２６ｂの位置はトラスの頂点を通る法線よりも中空
形材１０、２０の他端側に位置している。突き合わせ面
１５ｂ、２６ｂがトラスの頂点を通る法線上にある場合
であって、他方の面板２１、１２の端部が短い場合（許
容誤差内である。）、回転工具２５０の挿入位置は他方
の面板側に寄るためである。この場合、寄った側のリブ
の荷重が過大になる可能性がある。２つの凸部１５、２
５（１６、２６）の幅を検出して、その中心に回転工具
２５０の軸心を一致させる。The abutting surfaces 15b and 26b are face plates 11,
It is orthogonal to 12, 21, and 22. That is, it is along the normal to the face plate. The butting surfaces 15b and 26b are along the thickness direction of the hollow frame members 10 and 20. Butt surface 15
The positions of b and 26b are located on the other end side of the hollow frame members 10 and 20 with respect to the normal line passing through the apex of the truss. When the abutting surfaces 15b and 26b are on the normal line passing through the apex of the truss and the other end of the other face plate 21 and 12 is short (within the tolerance), the insertion position of the rotary tool 250 is the other. This is for approaching the face plate side. In this case, there is a possibility that the load of the ribs on the side closer to each other becomes excessive. Two convex parts 15, 2
The width of 5 (16, 26) is detected, and the axis of the rotary tool 250 is aligned with the center thereof.
【００１８】この構造体の製作方法を説明する。中空形
材１０、２０はベッド２４０に載せられ、固定されてい
る。面板１１、２１（１２、２２）の端部の突き合わせ
部は接触しているか近接している。上面側の面板１１、
２１の突き合わせ部の凸部１５、２５を上方からアーク
溶接によって仮止めする。仮止め溶接は間欠的である。A method of manufacturing this structure will be described. The hollow frame members 10 and 20 are placed and fixed on a bed 240. The abutting portions of the end portions of the face plates 11 and 21 (12 and 22) are in contact with or close to each other. Face plate 11 on the upper surface side,
The projections 15 and 25 of the abutting portion 21 are temporarily fixed by arc welding from above. Temporary fixing welding is intermittent.
【００１９】凸部１６、２６はベッド２４０に載ってい
る。リブ２３Ｂと面板２２との交点の近傍もベッド２４
０に載っている。この状態において、摩擦攪拌接合装置
の回転工具２５０を上方から凸部１５、２５の突き合わ
せ部に挿入した状態で、接合線に沿って移動させ、摩擦
攪拌接合する。回転工具２５０の軸心は鉛直方向であ
る。ただし、回転工具２５０の進行方向に対しては軸心
は公知のように傾斜している。２つの凸部１５、２５の
幅を検出してその中心に回転工具２５０の軸心を位置さ
せる。The protrusions 16 and 26 rest on the bed 240. The bed 24 is also provided near the intersection of the rib 23B and the face plate 22.
It is listed in 0. In this state, the rotary tool 250 of the friction stir welding apparatus is inserted from above into the abutting portions of the projections 15 and 25, and is moved along the welding line to perform the friction stir welding. The axis of the rotary tool 250 is in the vertical direction. However, the axis is inclined with respect to the traveling direction of the rotary tool 250 as is known. The widths of the two convex portions 15 and 25 are detected and the axis of the rotary tool 250 is positioned at the center thereof.
【００２０】回転工具２５０は大径部２５２とその先端
の小径部２５１とからなる。小径部２５１の先端は座１
７の上面よりも深く挿入している。大径部２５２の下端
は凸部１５、２５の頂と面板１１、２１の外面との間に
位置している。大径部２５２の径は２つの凸部１５、２
５からなる幅よりも小さい。小径部２５１はねじであ
る。The rotary tool 250 comprises a large diameter portion 252 and a small diameter portion 251 at its tip. The tip of the small diameter portion 251 is a seat 1
It is inserted deeper than the upper surface of 7. The lower end of the large diameter portion 252 is located between the tops of the convex portions 15 and 25 and the outer surfaces of the face plates 11 and 21. The diameter of the large-diameter portion 252 has two convex portions 15 and 2
It is smaller than the width of 5. The small diameter portion 251 is a screw.
【００２１】この摩擦攪拌接合によって、面板１１、２
１の突き合わせ部の隙間は埋められて、接合される。By this friction stir welding, the face plates 11, 2 are
The gap of the 1 abutting portion is filled and joined.
【００２２】次に、この構造体を反転させてベッド２４
０に載せる。凸部１６、２６の上方からアーク溶接で仮
止めする。次に、凸部１６、２６の上方から回転工具２
５０で摩擦攪拌接合する。摩擦攪拌接合は前記と同様で
ある。Next, the structure is turned over and the bed 24 is turned over.
Put it on 0. Temporary fixing is performed by arc welding from above the convex portions 16 and 26. Next, from the upper side of the convex portions 16 and 26, the rotary tool 2
Friction stir welding is performed at 50. Friction stir welding is the same as above.
【００２３】最後に、車体の外面側の凸部を切削して面
板と同一面にする。これによれば、回転工具２５０の軸
心は２つのリブ１３Ａ、１３Ｂ（１３Ａ、２３Ｂ）によ
るトラスの頂点またはその近傍を通る鉛直線上にある。
接合の際の挿入力は、回転工具２５０の軸心に向けて配
置した２つのリブ１３Ａ、１３Ｂ（１３Ａ、２３Ｂ）に
よって支えられる。このため、リブ１３Ａ、１３Ｂ、２
３Ｂの曲がりを抑制できる。１３Ａ、１３Ｂ、２３Ｂの
板厚を薄くでき、軽量にできるものである。もちろん面
板１１、２１の曲がりも抑制できる。リブ１３Ａ、１３
Ｂ、２３Ｂの板厚は他のリブ１３、２３の板厚よりも厚
い。リブ１３Ａ、１３Ｂ、２３Ｂを支えるベッド２４０
があるので、面板の曲がりも防止できる。Finally, the convex portion on the outer surface side of the vehicle body is cut to be flush with the face plate. According to this, the axis of the rotary tool 250 is on the vertical line passing through the apex of the truss formed by the two ribs 13A and 13B (13A and 23B) or its vicinity.
The insertion force at the time of joining is supported by the two ribs 13A and 13B (13A and 23B) arranged toward the axis of the rotary tool 250. Therefore, the ribs 13A, 13B, 2
Bending of 3B can be suppressed. The plate thickness of 13A, 13B, and 23B can be reduced, and the weight can be reduced. Of course, the bending of the face plates 11 and 21 can also be suppressed. Ribs 13A, 13
The plate thickness of B and 23B is thicker than the plate thickness of the other ribs 13 and 23. Bed 240 supporting ribs 13A, 13B, 23B
Since there is, bending of the face plate can also be prevented.
【００２４】また、接合後、構造体として用いる場合を
考えると、実質的にすべてをトラス構造で構成したこと
になる。このため、面外曲げ剛性が向上し、軽量にでき
るものである。２つのリブ１３Ａ、１３Ｂ（１３Ａ、２
３Ｂ）による頂点は面板１１、２１よりも外面側にあっ
てもよい。Considering the case of using as a structure after joining, substantially all of them are constructed by truss structure. Therefore, the out-of-plane bending rigidity is improved and the weight can be reduced. Two ribs 13A, 13B (13A, 2
The apex according to 3B) may be on the outer surface side of the face plates 11 and 21.
【００２５】上記実施例の接合は摩擦攪拌接合で行って
いるが、いずれか一方の接合または双方の接合をアーク
溶接で行ってもよい。アーク溶接する場合は、接合時の
荷重がないので、リブ１３Ａ、１３Ｂ、２３Ｂを薄くで
きるであろう。突出座２７の上面、座１７の下面は傾斜
していてもよい。上記実施例は面板１１、１２、２１、
２２が平行であったが、一方の面板が他方の面板に対し
て傾斜している場合にも対応できるものである。Although the welding in the above embodiment is performed by friction stir welding, either one or both welding may be performed by arc welding. In the case of arc welding, since there is no load at the time of joining, the ribs 13A, 13B and 23B will be thin. The upper surface of the protruding seat 27 and the lower surface of the seat 17 may be inclined. In the above embodiment, the face plates 11, 12, 21,
Although 22 is parallel, it is possible to cope with the case where one face plate is inclined with respect to the other face plate.
【００２６】図４は、接合部の面板の法線が傾斜してい
る場合である。中空形材１０の一端は水平である。中空
形材１０、２０はベッド２４０に載っている。これは側
構体２０１の端部の接合線に生じ易い。この場合の回転
体の軸心は面板の法線に沿っている。この法線はトラス
の頂点の近傍を通る。矢印は回転工具２５０の位置と方
向を示す。FIG. 4 shows the case where the normal to the face plate of the joint is inclined. One end of the hollow frame member 10 is horizontal. The hollow frame members 10 and 20 are mounted on the bed 240. This is likely to occur at the joining line at the end of the side structure 201. In this case, the axis of the rotating body is along the normal to the face plate. This normal passes near the apex of the truss. The arrow indicates the position and direction of the rotary tool 250.
【００２７】図５の実施例を説明する。中空形材２０は
ブロック状の部材３０である。部材３０は中空か否かを
問わない。他は図１の実施例に同様である。部材３０が
中空形材のとき、座２７は凸部２６と面板２１とを接続
するリブに設ける。このリブは面板１１に実質的に直交
（面板の法線に沿っている）している。面板２１は面板
１１の延長線上に実質的に沿っている。The embodiment shown in FIG. 5 will be described. The hollow frame member 20 is a block-shaped member 30. It does not matter whether the member 30 is hollow or not. Others are the same as the embodiment of FIG. When the member 30 is a hollow shape member, the seat 27 is provided on the rib connecting the convex portion 26 and the face plate 21. The ribs are substantially orthogonal to the face plate 11 (along the normal to the face plate). The face plate 21 is substantially along the extension of the face plate 11.
【００２８】図６の実施例を説明する。図１の中空形材
２０は面板２１の端部と面板２２の端部とを接続するリ
ブがない。一方、面板の端部には凸部２５、２６があ
る。このため、凸部２５の製作が困難である。図６の実
施例はこれを改善することを目的とするものである。面
板２１の端部と面板２２の端部とを接続するリブ２３Ａ
がある。リブ２３Ａ、２３Ｂ、面板２１によって２等辺
３角形を構成している。これによれば２本のリブで挿入
力を支える。リブ１３Ａ、１３Ｂ、２３Ａ、２３Ｂの板
厚を薄くできる。中空形材２０を製作後、リブ２３Ａを
除き、その後、図１のように摩擦攪拌接合することもで
きる。The embodiment shown in FIG. 6 will be described. The hollow frame member 20 of FIG. 1 does not have a rib connecting the end portion of the face plate 21 and the end portion of the face plate 22. On the other hand, the end portions of the face plate have convex portions 25 and 26. Therefore, it is difficult to manufacture the convex portion 25. The embodiment of FIG. 6 aims to improve this. A rib 23A connecting the end of the face plate 21 and the end of the face plate 22
There is. The ribs 23A and 23B and the face plate 21 form an isosceles triangle. According to this, the insertion force is supported by the two ribs. The plate thickness of the ribs 13A, 13B, 23A, 23B can be reduced. After manufacturing the hollow frame member 20, the rib 23A may be removed, and then friction stir welding may be performed as shown in FIG.
【００２９】図７の実施例は、リブ２３Ａを中空形材の
端部に近接して設けている。リブ２３Ａの中心線とリブ
１３Ｂの中心線とから２等辺３角形を構成している。両
者の中心線の交点を通る鉛直線上に回転工具２５０の軸
心がある。これによれば、挿入力を３本のリブでより支
えることができる。In the embodiment shown in FIG. 7, the rib 23A is provided close to the end of the hollow shape member. The center line of the rib 23A and the center line of the rib 13B form an isosceles triangle. The axis of the rotary tool 250 is located on a vertical line passing through the intersection of the center lines of the two. According to this, the insertion force can be further supported by the three ribs.
【００３０】図８の実施例は、回転工具２５０の挿入位
置を２つの交点の間にしたものである。In the embodiment shown in FIG. 8, the insertion position of the rotary tool 250 is between two intersections.
【００３１】本発明の技術的範囲は、特許請求の範囲の
各請求項に記載の文言あるいは課題を解決するための手
段の項に記載の文言に限定されず、当業者がそれから容
易に置き換えられる範囲にも及ぶものである。The technical scope of the present invention is not limited to the wording described in each claim of the claims or the wording described in the section of means for solving a problem, and those skilled in the art can easily replace it. It extends to a range.
【００３２】[0032]
【発明の効果】本発明によれば、二枚の面板を接続する
２つのリブによるトラスの頂点の近傍を摩擦攪拌接合部
として中空形材を構成しているので、軽量かつ高剛性な
構造体を得ることができる中空形材を提供することがで
きるものである。According to the present invention, thefriction stir welded portion is formed near the apex of the truss by the two ribs connecting the two face plates.
Since the hollow profile is formed as described above , it is possible to provide a hollow profile that can obtain a lightweight and highly rigid structure.
【図１】本発明の一実施例の接合部の要部の縦断面図。FIG. 1 is a vertical cross-sectional view of a main part of a joint according to an embodiment of the present invention.
【図２】本発明の一実施例の一組の中空形材の縦断面
図。FIG. 2 is a longitudinal sectional view of a pair of hollow frame members according to an embodiment of the present invention.
【図３】鉄道車両の車体の斜視図。FIG. 3 is a perspective view of a vehicle body of a railway vehicle.
【図４】本発明の他の実施例の要部の縦断面図。FIG. 4 is a vertical cross-sectional view of the essential parts of another embodiment of the present invention.
【図５】本発明の他の実施例の要部の縦断面図。FIG. 5 is a vertical cross-sectional view of the essential parts of another embodiment of the present invention.
【図６】本発明の他の実施例の要部の縦断面図。FIG. 6 is a vertical cross-sectional view of the essential parts of another embodiment of the present invention.
【図７】本発明の他の実施例の要部の縦断面図。FIG. 7 is a vertical cross-sectional view of the essential parts of another embodiment of the present invention.
【図８】本発明の他の実施例の要部の縦断面図。FIG. 8 is a vertical cross-sectional view of the essential parts of another embodiment of the present invention.
１０、２０ 中空形材１１、１２、２１、２２ 面板１３、１３Ａ、１３Ｂ、２３、２３Ａ、２３Ｂ リブ１７、２７ 座２０１ 側構体２０２ 屋根構体２０３ 台枠２４０ ベッド２５０ 回転工具10, 20 Hollow frame11, 12, 21, 22 Face plate13, 13A, 13B, 23, 23A, 23B rib17, 27 seats201 side structure202 roof structure203 underframe240 beds250 rotary tools
─────────────────────────────────────────────────────フロントページの続き (72)発明者 佐川 年旦 東京都千代田区神田駿河台四丁目６番地 株式会社 日立製作所内 (56)参考文献 特開 平９−221024（ＪＰ，Ａ) 特開 平10−35487（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B23K 20/12─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Todan Sagawa 4-6 Kanda Surugadai, Chiyoda-ku, Tokyo Inside Hitachi, Ltd. (56) Reference JP-A-9-221024 (JP, A) JP-A-10 −35487 (JP, A) (58) Fields investigated (Int.Cl.7 , DB name) B23K 20/12
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14913799AJP3459197B2 (en) | 1999-05-28 | 1999-05-28 | Hollow profile for friction stir welding |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14913799AJP3459197B2 (en) | 1999-05-28 | 1999-05-28 | Hollow profile for friction stir welding |
| Publication Number | Publication Date |
|---|---|
| JP2000343247A JP2000343247A (en) | 2000-12-12 |
| JP3459197B2true JP3459197B2 (en) | 2003-10-20 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14913799AExpired - Fee RelatedJP3459197B2 (en) | 1999-05-28 | 1999-05-28 | Hollow profile for friction stir welding |
| Country | Link |
|---|---|
| JP (1) | JP3459197B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4578985B2 (en)* | 2005-01-12 | 2010-11-10 | 日本車輌製造株式会社 | Extruded hollow profile and railway vehicle structure formed by the profile |
| JP2006224160A (en)* | 2005-02-18 | 2006-08-31 | Nippon Sharyo Seizo Kaisha Ltd | Extruded hollow shape material and railroad car structure formed therewith |
| JP4839054B2 (en)* | 2005-09-27 | 2011-12-14 | 近畿車輌株式会社 | Hollow profile pair for friction welding |
| JP4879295B2 (en)* | 2009-05-11 | 2012-02-22 | 日本車輌製造株式会社 | Panel joint structure |
| Publication number | Publication date |
|---|---|
| JP2000343247A (en) | 2000-12-12 |
| Publication | Publication Date | Title |
|---|---|---|
| JP3481501B2 (en) | Structure and method of manufacturing the same | |
| JP3589930B2 (en) | Friction stir welding method | |
| JP3538357B2 (en) | Friction stir welding method | |
| JP3459210B2 (en) | Friction stir welding method | |
| JP3563003B2 (en) | Friction stir welding method for structures | |
| JP3552978B2 (en) | Hollow profile | |
| JP2000237881A (en) | Panel structure manufacturing method and panel structure | |
| JP3459197B2 (en) | Hollow profile for friction stir welding | |
| JP3459195B2 (en) | Structure and method of manufacturing the same | |
| JP4723081B2 (en) | Manufacturing method of structure | |
| JP3459211B2 (en) | Friction stir welding profile | |
| JP4494671B2 (en) | Structure and manufacturing method thereof | |
| JP3459206B2 (en) | Hollow profile for friction stir welding | |
| JP3488402B2 (en) | Extruded material for friction stir welding | |
| JP3641405B2 (en) | Hollow extruded profile | |
| JP3459218B2 (en) | Friction stir welding method | |
| JP3565756B2 (en) | Shaped material for friction stir welding | |
| JP3840029B2 (en) | Hollow profile | |
| JP3459205B2 (en) | Structure and method of manufacturing the same | |
| JP3459196B2 (en) | Hollow profile for friction stir welding | |
| JP4402062B2 (en) | Friction stir welding method | |
| JP2001073499A (en) | Structure and method of manufacturing the same | |
| JP3608997B2 (en) | Hollow shape and connecting material for friction stir welding | |
| JP4346631B2 (en) | Friction welding method and panel structure | |
| JP4402063B2 (en) | panel |
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20070808 Year of fee payment:4 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20080808 Year of fee payment:5 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20080808 Year of fee payment:5 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20090808 Year of fee payment:6 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20100808 Year of fee payment:7 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20100808 Year of fee payment:7 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20110808 Year of fee payment:8 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20120808 Year of fee payment:9 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20130808 Year of fee payment:10 | |
| LAPS | Cancellation because of no payment of annual fees |