JP6823631B2

JP6823631B2 - Rail vehicle structure

Info

Publication number: JP6823631B2
Application number: JP2018193708A
Authority: JP
Inventors: 中村　英之; 英之中村; 川崎　健; 健川崎
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2018-10-12
Filing date: 2018-10-12
Publication date: 2021-02-03
Anticipated expiration: 2038-10-12
Also published as: JP2020059466A

Description

本発明は、軌条車両構体に関し、特に、鉄道車両やモノレール車両のような軌条車両の軌条車両構体に関する。 The present invention relates to a rail vehicle structure, and more particularly to a rail vehicle structure of a rail vehicle such as a railroad vehicle or a monorail vehicle.

軌条車両の構造体である軌条車両構体は、一般に、上面を構成する屋根構体と側面を構成する側構体と下面を構成する台枠と長手方向の端面を構成する妻構体から成る。近年では、製作性の向上や遮音性の向上を目的として、対向する二枚の面板と該面板同士を接続する複数のリブから成るアルミニウム合金製の中空形材によって、屋根構体、側構体、台枠などを構成し、軌条車両構体に組み立てる手法が広まりつつある。 The rail vehicle structure, which is the structure of the rail vehicle, generally includes a roof structure that constitutes the upper surface, a side structure that constitutes the side surface, an underframe that constitutes the lower surface, and a wife structure that constitutes the end face in the longitudinal direction. In recent years, for the purpose of improving manufacturability and sound insulation, roof structures, side structures, and pedestals have been made of hollow profiles made of aluminum alloy consisting of two opposing face plates and a plurality of ribs connecting the face plates. The method of constructing a frame and assembling it into a rail vehicle structure is becoming widespread.

一般に、軌条車両構体は、長手方向端部寄りの台枠の下面に接合される枕梁を介して、走行装置である台車と結合される。枕梁の下面には、軌条車両構体の上下方向に延伸する中心ピンが接続され、中心ピンの下方向端部寄りにおいて、台車の牽引装置が結合される。 Generally, the rail vehicle structure is coupled to the bogie, which is a traveling device, via a pillow beam joined to the lower surface of the underframe near the end in the longitudinal direction. A central pin extending in the vertical direction of the rail vehicle structure is connected to the lower surface of the pillow beam, and a bogie traction device is connected near the downward end of the central pin.

台車が走行する際には、牽引装置を介して牽引力が中心ピンの下方向端部寄りに作用し、この牽引力に引っ張られて中心ピンを接続した軌条車両構体が台車の走行方向に移動する。 When the bogie travels, a traction force acts toward the downward end of the center pin via a traction device, and the rail vehicle structure connected to the center pin is moved in the traveling direction of the trolley by being pulled by this traction force.

ここで、特許文献１に、従来の台枠構造の一例が示されている。特許文献１には、アルミニウム合金製の中空形材によって台枠を構成し、その下面に目の字状の断面を有し軌条車両構体の幅方向に延伸する枕梁を接合した構造が示されている。 Here, Patent Document 1 shows an example of a conventional underframe structure. Patent Document 1 discloses a structure in which an underframe is formed of a hollow shape material made of an aluminum alloy, and a corbel beam having an eye-shaped cross section on the lower surface thereof and extending in the width direction of a rail vehicle structure is joined. ing.

図７及び図８を用いて、この台枠構造の詳細を説明する。また、図１は、本発明の一実施形態である鉄道車両構体の一例を示す斜視図であるが、この図も参照して説明する。図７は従来の実施形態であり、図１に示す鉄道車両構体の枕梁近傍のＡ−Ａに相当する長手方向の垂直断面図である。図８は、従来の実施形態であり、図１に示す鉄道車両構体の枕梁近傍のＢ−Ｂに相当する幅方向の垂直断面図である。 The details of this underframe structure will be described with reference to FIGS. 7 and 8. Further, FIG. 1 is a perspective view showing an example of a railway vehicle structure according to an embodiment of the present invention, which will be described with reference to this figure as well. FIG. 7 is a conventional embodiment, and is a vertical cross-sectional view in the longitudinal direction corresponding to AA in the vicinity of the pillow beam of the railway vehicle structure shown in FIG. FIG. 8 is a conventional embodiment, and is a vertical cross-sectional view in the width direction corresponding to BB in the vicinity of the pillow beam of the railway vehicle structure shown in FIG.

鉄道車両構体１の長手方向１０３の端部寄りの台枠１０の下面に、枕梁１４が接合される。枕梁１４は、複数の部材を接合して組み立てられた目の字状の断面を有するアルミニウム合金製の中空形材であり、鉄道車両構体１の幅方向１０２に延伸している。枕梁１４は、枕梁端部上面板１４ＥＵの鉄道車両構体１の長手方向１０３の端部において、枕梁端部溶接部１４Ｗにより台枠１０の下面に接合される。枕梁下面板１４Ｄの下面には、鉄道車両構体１の上下方向１０１に延伸する中心ピン１７が、ボルト１８により接続される。中心ピン１７の下方向端部寄りには、台車の牽引装置（図示せず）が結合され、台車の走行によって、鉄道車両構体１の長手方向１０３に牽引力１００が作用する。 The pillow beam 14 is joined to the lower surface of the underframe 10 near the end of the railway vehicle structure 1 in the longitudinal direction 103. The corbel beam 14 is a hollow shape member made of an aluminum alloy having an eye-shaped cross section assembled by joining a plurality of members, and extends in the width direction 102 of the railway vehicle structure 1. The corbel beam 14 is joined to the lower surface of the underframe 10 by the corbel beam end welded portion 14W at the end portion of the railroad vehicle structure 1 of the corbel beam end upper surface plate 14EU in the longitudinal direction 103. A central pin 17 extending in the vertical direction 101 of the railway vehicle structure 1 is connected to the lower surface of the pillow beam lower plate 14D by bolts 18. A bogie traction device (not shown) is coupled to the center pin 17 near the downward end, and a traction force 100 acts on the longitudinal direction 103 of the railroad vehicle structure 1 as the bogie travels.

ここで、例えば、牽引力１００が図７の右方に作用した場合、枕梁１４には、図７の右方の端部を台枠１０寄りに押し付ける。このとき、図７の左方の端部を台枠１０から引き離すような力は鉄道車両構体１の上下方向１０１の力として作用する。この力を枕梁１４に接合され鉄道車両構体１の長手方向１０３に延伸する中梁１３にも負担させるため、中梁１３の鉄道車両構体１の長手方向１０３の延長線上に各ボルト１８を配置している。中梁１３は、中梁上面板１３Ｕの鉄道車両構体１の幅方向１０２の端部において、中梁端部溶接部１３Ｗにより台枠１０の下面に接合される。枕梁１４と中梁１３は、台枠１０の下面に接合される前に接合されるので、両者が接合される部分では枕梁端部溶接部１４Ｗは、台枠１０の下面に接合されない。 Here, for example, when the traction force 100 acts on the right side of FIG. 7, the right end portion of FIG. 7 is pressed against the pillow beam 14 toward the underframe 10. At this time, a force that pulls the left end of FIG. 7 away from the underframe 10 acts as a force in the vertical direction 101 of the railway vehicle structure 1. In order to apply this force to the middle beam 13 which is joined to the pillow beam 14 and extends in the longitudinal direction 103 of the railway vehicle structure 1, each bolt 18 is arranged on the extension line of the railway vehicle structure 1 of the middle beam 13 in the longitudinal direction 103. doing. The middle beam 13 is joined to the lower surface of the underframe 10 by the middle beam end welded portion 13W at the end of the railroad vehicle structure 1 of the middle beam upper plate 13U in the width direction 102. Since the pillow beam 14 and the middle beam 13 are joined before being joined to the lower surface of the underframe 10, the pillow beam end welded portion 14W is not joined to the lower surface of the underframe 10 at the portion where they are joined.

特許第３８６８２０３号公報Japanese Patent No. 3868203

図７、８のような構成においては、枕梁１４の鉄道車両構体１の長手方向１０３の端部に作用する鉄道車両構体１の上下方向１０１の力が、枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗを介して台枠１０に伝達される。特に、枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗが交差する位置では、当該力が集中的に伝達される。このとき、両溶接部１４Ｗ、１３Ｗの交差により角部が形成される当該位置は高い剛性を有するため、その周辺の台枠下面板５２と枕梁端部上面板１４ＥＵ又は中梁上面板１３Ｕの間に大きな開口を生じる。当該開口は、その先端からのき裂の発生を助長するため、枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗが交差する位置では、強度的に厳しい状態となる。 In the configurations shown in FIGS. 7 and 8, the force of the railroad vehicle structure 1 acting on the end portion of the railroad vehicle structure 1 of the corbel beam 14 in the longitudinal direction 103 in the vertical direction is medium with that of the corbel beam end welded portion 14W. It is transmitted to the underframe 10 via the beam end welded portion 13W. In particular, at the position where the pillow beam end welded portion 14W and the middle beam end welded portion 13W intersect, the force is intensively transmitted. At this time, since the position where the corner portion is formed by the intersection of the two welded portions 14W and 13W has high rigidity, the underframe lower surface plate 52 and the pillow beam end upper surface plate 14EU or the middle beam upper surface plate 13U around the corner portion have high rigidity. A large opening is created between them. Since the opening promotes the generation of cracks from the tip thereof, the strength is severe at the position where the pillow beam end welded portion 14W and the middle beam end welded portion 13W intersect.

このため、牽引力に対して枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗが交差する位置の周辺に生じる開口を抑制し、牽引力に対する強度信頼性を向上できる軌条車両構体が望まれていた。 Therefore, there is a demand for a rail vehicle structure capable of suppressing an opening generated around the position where the pillow beam end welded portion 14W and the middle beam end welded portion 13W intersect with respect to the traction force and improving the strength reliability with respect to the traction force. It was.

以上のように、従来の軌条車両構体においては、牽引力により発生する鉄道車両構体の上下方向の力が集中的に伝達される枕梁端部溶接部と中梁端部溶接部が交差する位置の周辺の台枠下面板と枕梁端部上面板又は中梁上面板の間が大きく開口し、強度的に厳しい状態となっていた。 As described above, in the conventional rail vehicle structure, the position where the beam beam end welded portion and the middle beam end welded portion intersect where the vertical force of the railroad vehicle structure generated by the traction force is intensively transmitted. There was a large opening between the lower surface plate of the surrounding underframe and the upper surface plate of the end of the pillow beam or the upper surface plate of the middle beam, and the strength was severe.

本発明は、上記課題に鑑みて、牽引力に対する強度信頼性を向上できる軌条車両構体を提供することを目的とする。 In view of the above problems, an object of the present invention is to provide a rail vehicle structure capable of improving strength reliability with respect to traction force.

上記の課題を解決するため、代表的な本発明の軌条車両構体の一つは、上面を構成する屋根構体と、側面を構成する側構体と、下面を構成する台枠と、端面を構成する妻構体を有し、前記台枠の下面に、前記台枠の幅方向に延伸する枕梁と、前記台枠の長手方向に延伸する中梁を接合した軌条車両構体において、前記台枠は、上面を構成する台枠上面板と、下面を構成する台枠下面板と、前記台枠上面板と前記台枠下面板を結合する台枠リブとを有し、前記枕梁は、上面を構成する枕梁上面板と、下面を構成する枕梁下面板と、前記枕梁上面板と前記枕梁下面板を結合する枕梁リブとを有し、前記中梁は、上面を構成する中梁上面板と、下面を構成する中梁下面板と、前記中梁上面板と前記中梁下面板を結合する中梁リブとを有し、前記枕梁の前記軌条車両構体の長手方向の端部において、前記枕梁上面板と前記中梁上面板が、前記枕梁下面板と前記中梁下面板が、前記枕梁リブと前記中梁リブがそれぞれ接合され、前記枕梁上面板の前記軌条車両構体の長手方向の端部と、前記中梁上面板の前記軌条車両構体の幅方向の端部は、前記台枠下面板の下面に接合されており、前記枕梁の前記軌条車両構体の長手方向の端部の少なくとも一箇所において、前記枕梁に対して前記軌条車両構体の長手方向の端部側又は中央側であり、且つ、前記中梁に対して前記軌条車両構体の幅方向の端部側又は中央側である位置に水平補強板を配置し、前記水平補強板は、前記枕梁上面板の前記軌条車両構体の長手方向の端部に接合される辺と、前記中梁上面板の前記軌条車両構体の幅方向の端部に接合される辺と、前記台枠下面板の下面に接合され他の二辺に対して凸となる円弧の辺で構成されること、を特徴としている。 In order to solve the above problems, one of the typical beam vehicle structures of the present invention constitutes a roof structure constituting the upper surface, a side structure constituting the side surface, an underframe forming the lower surface, and an end surface. In a rail vehicle structure having a wife structure and joining a pillow beam extending in the width direction of the underframe and a middle beam extending in the longitudinal direction of the underframe to the lower surface of the underframe, the underframe is The underframe upper surface plate constituting the upper surface, the underframe lower surface plate forming the lower surface, and the underframe rib connecting the underframe upper surface plate and the underframe lower surface plate are provided, and the pillow beam constitutes the upper surface. The upper surface plate of the pillow beam, the lower surface plate of the pillow beam forming the lower surface, and the pillow beam rib connecting the upper surface plate of the pillow beam and the lower surface plate of the pillow beam, and the middle beam constitutes the upper surface. It has a top plate, a middle beam lower surface plate constituting the lower surface, and a middle beam rib connecting the middle beam upper surface plate and the middle beam lower surface plate, and the end portion of the pillow beam in the longitudinal direction of the rail vehicle structure. In, the pillow beam upper surface plate and the middle beam upper surface plate, the pillow beam lower surface plate and the middle beam lower surface plate, and the pillow beam rib and the middle beam rib are joined, respectively, and the rail of the pillow beam upper surface plate. The longitudinal end of the vehicle structure and the widthwise end of the rail vehicle structure of the middle beam upper surface plate are joined to the lower surface of the underframe lower surface plate of the railed vehicle structure of the pillow beam. At least one of the longitudinal ends of the railed vehicle structure with respect to the pillow beam on the longitudinal end side or center side of the railed vehicle structure and with respect to the middle beam in the width direction of the railed vehicle structure. A horizontal reinforcing plate is arranged at a position on the end side or the center side, and the horizontal reinforcing plate is formed on the side of the upper surface plate of the pillow beam joined to the longitudinal end of the rail vehicle structure and on the middle beam. It is characterized by being composed of a side of the face plate joined to the widthwise end of the beam vehicle structure and a side of an arc joined to the lower surface of the underframe lower surface plate and convex with respect to the other two sides. It is said.

本発明によれば、軌条車両の台枠構造において、上記のように構成されているので、牽引力に対する強度信頼性を向上できる。
上記した以外の課題、構成及び効果は、以下の実施形態の説明により明らかにされる。 According to the present invention, since the underframe structure of the rail vehicle is configured as described above, the strength reliability with respect to the traction force can be improved.
Issues, configurations and effects other than those described above will be clarified by the following description of the embodiments.

本発明の一実施形態である鉄道車両構体の一例を示す斜視図である。It is a perspective view which shows an example of the railroad vehicle structure which is one Embodiment of this invention. 本発明の一実施形態における図１に示す鉄道車両構体の枕梁近傍のＡ−Ａについての長手方向の垂直断面図である。It is a vertical sectional view in the longitudinal direction about AA in the vicinity of the corbel beam of the railroad vehicle structure shown in FIG. 1 in one embodiment of the present invention. 本発明の一実施形態における図１に示す鉄道車両構体の枕梁近傍のＢ−Ｂについての幅方向の垂直断面図である。It is a vertical sectional view in the width direction about BB in the vicinity of the corbel beam of the railroad vehicle structure shown in FIG. 1 in one embodiment of the present invention. 本発明の一実施形態における図１に示す鉄道車両構体の領域Ｃについての垂直視図である。It is a vertical view about the area C of the railroad vehicle structure shown in FIG. 1 in one Embodiment of this invention. 図４に示す鉄道車両構体の領域Ｄの枕梁上面周辺の構造を模擬した簡易解析モデルである。This is a simple analysis model simulating the structure around the upper surface of the pillow beam in the area D of the railway vehicle structure shown in FIG. 図５に示す鉄道車両構体の領域Ｄの枕梁上面周辺の構造を模擬した簡易解析モデルにおける完全拘束された辺の直近の位置の上下方向の変形量を示す図である。FIG. 5 is a diagram showing the amount of vertical deformation of the position closest to the completely restrained side in a simple analysis model simulating the structure around the upper surface of the pillow beam in the region D of the railroad vehicle structure shown in FIG. 従来の実施形態における図１に示す鉄道車両構体の枕梁近傍のＡ−Ａに相当する長手方向の垂直断面図である。It is a vertical sectional view in the longitudinal direction corresponding to AA in the vicinity of the pillow beam of the railroad vehicle structure shown in FIG. 1 in the conventional embodiment. 従来の実施形態における図１に示す鉄道車両構体の枕梁近傍のＢ−Ｂに相当する幅方向の垂直断面図である。It is a vertical cross-sectional view in the width direction corresponding to BB in the vicinity of the pillow beam of the railroad vehicle structure shown in FIG. 1 in the conventional embodiment.

以下、図面を参照して、本発明による軌条車両構体の一例を説明する。 Hereinafter, an example of the rail vehicle structure according to the present invention will be described with reference to the drawings.

図１は、本発明の軌条車両構体の一実施形態である鉄道車両構体の一例を模式的に示す斜視図であり、下側から見た図である。図１に示すように、鉄道車両構体１の上下方向を１０１とし、それに直交する幅方向と長手方向をそれぞれ１０２、１０３とする。なお、これらの方向は、他の図面でも同様である。 FIG. 1 is a perspective view schematically showing an example of a railroad vehicle structure according to an embodiment of the rail vehicle structure of the present invention, and is a view seen from below. As shown in FIG. 1, the vertical direction of the railway vehicle structure 1 is 101, and the width direction and the longitudinal direction orthogonal to the vertical direction are 102 and 103, respectively. It should be noted that these directions are the same in other drawings.

鉄道車両構体１は、台枠１０の幅方向１０２の両端部に立設された側構体２０、２０（一方のみ図示）と、台枠１０の長手方向１０３の両端部に立設された妻構体４０、４０（一方のみ図示）と、側構体２０、２０と妻構体４０、４０との上下方向１０１の上端部に載置された屋根構体３０から構成される。側構体２０、２０には、乗客が乗降するための出入口２２や乗客が車外の景色を見るための窓２１が備えられる。妻構体４０、４０には、乗客が車両間を移動するための貫通路４１が備えられる。台枠１０の幅方向１０２の端部には長手方向１０３に延伸する側梁１１、１１が備えられ、台枠１０の長手方向１０３の端部には幅方向１０２に延伸する端梁１２、１２が備えられる。なお、図１では、水平補強板８０の構成は図示を省略しており、この構成については後述する図２から４で詳細を説明する。 The railroad vehicle structure 1 includes side structures 20 and 20 (only one of them is shown) erected at both ends of the underframe 10 in the width direction 102, and a wife structure erected at both ends of the underframe 10 in the longitudinal direction 103. It is composed of 40, 40 (only one of them is shown), and a roof structure 30 mounted on the upper ends of the side structures 20, 20 and the wife structures 40, 40 in the vertical direction 101. The side structures 20 and 20 are provided with an entrance / exit 22 for passengers to get on and off and a window 21 for passengers to see the scenery outside the vehicle. The wife structures 40, 40 are provided with a gangway 41 for passengers to move between vehicles. Side beams 11 and 11 extending in the longitudinal direction 103 are provided at the ends of the underframe 10 in the width direction 102, and end beams 12 and 12 extending in the width direction 102 at the ends of the underframe 10 in the longitudinal direction 103. Is provided. In FIG. 1, the configuration of the horizontal reinforcing plate 80 is not shown, and the details of this configuration will be described with reference to FIGS. 2 to 4 described later.

次に、台枠１０の長手方向１０３の端部寄りの構成を説明する。台枠１０の下面には、鉄道車両構体１を走行装置である台車（図示せず）に結合するための枕梁１４が接合されている。枕梁１４は、長手方向１０３の端部付近にそれぞれ設けられている。枕梁１４の長手方向１０３の一方（鉄道車両構体１の長手方向１０３の端部側）及び他方（鉄道車両構体１の長手方向１０３の中央側）には、二つが並列して長手方向１０３に延伸する中梁１３、１３が接合される。枕梁１４の一方に接合される中梁１３、１３の枕梁１４の反対側の端部は、端梁１２に接合される。枕梁１４の他方に接合される中梁１３、１３の枕梁１４の反対側の端部は、幅方向１０２に延伸する横梁１５に接合される。枕梁１４の下面の幅方向１０２の端部寄りには、空気ばね受１６が設けられ、台車の空気ばね（図示せず）と結合される。枕梁１４の下面の幅方向１０２の中央部には、上下方向１０１に延伸する中心ピン１７が設けられ、その上部は枕梁１４の下面にボルト１８で結合され、その下部は台車の牽引力を伝達する牽引装置（図示せず）に結合される。これらの構成により、台車が走行する際の牽引力が鉄道車両構体１に伝達され、鉄道車両構体１が長手方向１０３に走行する。枕梁１４の内部には、長手方向１０３に延伸する貫通管１９を配置するための開口が設けられる。 Next, the configuration of the underframe 10 near the end in the longitudinal direction 103 will be described. Pillow beams 14 for connecting the railroad vehicle structure 1 to a bogie (not shown) which is a traveling device are joined to the lower surface of the underframe 10. The pillow beams 14 are provided near the ends in the longitudinal direction 103, respectively. On one side (the end side of the railway vehicle structure 1 in the longitudinal direction 103) and the other (the center side of the railway vehicle structure 1 in the longitudinal direction 103) of the pillow beam 14 in the longitudinal direction 103, two are arranged in parallel in the longitudinal direction 103. The extending middle beams 13 and 13 are joined. The opposite ends of the pillow beams 14 of the middle beams 13 and 13 joined to one of the pillow beams 14 are joined to the end beams 12. The opposite ends of the pillow beams 14 of the middle beams 13 and 13 joined to the other side of the pillow beams 14 are joined to the cross beams 15 extending in the width direction 102. An air spring receiver 16 is provided near the end of the lower surface of the pillow beam 14 in the width direction 102, and is coupled to an air spring (not shown) of the carriage. A central pin 17 extending in the vertical direction 101 is provided at the center of the lower surface of the pillow beam 14 in the width direction 102, the upper portion thereof is connected to the lower surface of the pillow beam 14 by a bolt 18, and the lower portion thereof exerts the traction force of the trolley. It is coupled to a transmitting traction device (not shown). With these configurations, the traction force when the bogie travels is transmitted to the railway vehicle structure 1, and the railway vehicle structure 1 travels in the longitudinal direction 103. Inside the pillow beam 14, an opening is provided for arranging a through pipe 19 extending in the longitudinal direction 103.

図２は、図１における枕梁１４近傍のＡ−Ａ断面図を示し、図３は図１における枕梁１４近傍のＢ−Ｂ断面図を示し、図４に図１における枕梁１４近傍の領域Ｃの拡大図を示す。 FIG. 2 shows a cross-sectional view taken along the line AA in the vicinity of the corbel beam 14 in FIG. 1, FIG. 3 shows a cross-sectional view taken along the line BB near the corbel beam 14 in FIG. 1, and FIG. The enlarged view of the area C is shown.

台枠１０は、上面を構成する台枠上面板５１と、下面を構成する台枠下面板５２と、台枠上面板５１と台枠下面板５２をトラス状に接続する台枠リブ５３とから構成される中空形材であり、その押出方向を長手方向１０３と一致させている。 The underframe 10 is composed of an underframe upper surface plate 51 constituting the upper surface, an underframe lower surface plate 52 forming the lower surface, and an underframe rib 53 connecting the underframe upper surface plate 51 and the underframe lower surface plate 52 in a truss shape. It is a hollow profile to be constructed, and its extrusion direction coincides with the longitudinal direction 103.

枕梁１４は、上面を構成する枕梁上面板１４Ｕと、下面を構成する枕梁下面板１４Ｄと、枕梁上面板１４Ｕと枕梁下面板１４Ｄをハシゴ状に接続する枕梁リブ１４Ｒとから構成される中空形材であり、その押出方向を幅方向１０２と一致させている。枕梁上面板１４Ｕの長手方向１０３の端部には、枕梁１４の長手方向１０３の端部方向に突出する枕梁端部上面板１４ＥＵが存在し、枕梁上面板１４Ｕの一部として形成されている。枕梁下面板１４Ｄの長手方向１０３の端部には、枕梁１４の長手方向１０３の端部方向に突出する枕梁端部下面板１４ＥＤが存在し、枕梁下面板１４Ｄの一部として形成されている。 The pillow beam 14 is composed of a corbel beam upper surface plate 14U constituting the upper surface, a pillow beam lower surface plate 14D forming the lower surface, and a corbel beam rib 14R connecting the pillow beam upper surface plate 14U and the pillow beam lower surface plate 14D in a corbel shape. It is a hollow profile to be constructed, and its extrusion direction coincides with the width direction 102. At the end of the corbel upper surface plate 14U in the longitudinal direction 103, there is a corbel end upper surface plate 14EU protruding in the longitudinal direction 103 of the corbel beam 14 and formed as a part of the corbel beam upper surface plate 14U. Has been done. At the end of the corbel lower surface plate 14D in the longitudinal direction 103, there is a corbel end lower surface plate 14ED projecting in the longitudinal direction 103 of the corbel beam 14 and is formed as a part of the corbel beam lower surface plate 14D. ing.

中梁１３は、上面を構成する中梁上面板１３Ｕと、下面を構成する中梁下面板１３Ｄと、中梁上面板１３Ｕと中梁下面板１３Ｄとを端部で接続する中梁リブ１３Ｒとから構成されるコの字型の断面を有した形材であり、その押出方向を長手方向１０３と一致させている。 The middle beam 13 includes a middle beam upper surface plate 13U constituting the upper surface, a middle beam lower surface plate 13D forming the lower surface, and a middle beam rib 13R connecting the middle beam upper surface plate 13U and the middle beam lower surface plate 13D at an end portion. It is a profile having a U-shaped cross section composed of, and its extrusion direction coincides with the longitudinal direction 103.

枕梁１４は、長手方向１０３の端部において、枕梁端部溶接部１４Ｗにより台枠下面板５２の下面に接合され、枕梁端部上面板１４ＥＵと中梁上面板１３Ｕ、枕梁端部下面板１４ＥＤと中梁下面板１３Ｄ、枕梁リブ１４Ｒと中梁リブ１３Ｒとがそれぞれ接合される。中梁１３は、幅方向１０２の端部において、中梁端部溶接部１３Ｗにより台枠下面板・リブ結合部５４における台枠下面板５２の下面に接合され、強度を高めている。ここで、枕梁１４と中梁１３は、台枠下面板５２の下面に接合される前に接合されるので、両者が接合される部位の枕梁端部溶接部１４Ｗでは、台枠下面板５２の下面に接合されない。 The pillow beam 14 is joined to the lower surface of the underframe lower surface plate 52 by the pillow beam end welded portion 14W at the end portion in the longitudinal direction 103, and the pillow beam end upper surface plate 14EU, the middle beam upper surface plate 13U, and the pillow beam end lower portion. The face plate 14ED and the middle beam lower surface plate 13D, and the pillow beam rib 14R and the middle beam rib 13R are joined to each other. The middle beam 13 is joined to the lower surface of the underframe lower surface plate 52 at the underframe lower surface plate / rib joint portion 54 by the middle beam end welded portion 13W at the end portion in the width direction 102 to increase the strength. Here, since the pillow beam 14 and the middle beam 13 are joined before being joined to the lower surface of the underframe lower surface plate 52, the underframe lower surface plate is formed at the pillow beam end welded portion 14W at the portion where both are joined. It is not joined to the lower surface of 52.

枕梁下面板１４Ｄの下面には中心ピン１７がボルト１８で結合され、中心ピン１７の下部には牽引力１００が長手方向１０３に繰り返し作用する。各ボルト１８は、中梁１３の長手方向１０３の延長線上に位置している。 A central pin 17 is connected to the lower surface of the pillow beam lower plate 14D by a bolt 18, and a traction force 100 acts repeatedly in the longitudinal direction 103 on the lower portion of the central pin 17. Each bolt 18 is located on an extension line of the center beam 13 in the longitudinal direction 103.

枕梁１４の長手方向１０３の端部において、中梁１３の幅方向１０２の端部寄りに水平補強板８０が配置される。水平補強板８０は、枕梁１４側に沿った辺と、中梁１３側に沿った辺と、枕梁１４及び中梁１３に向けて凸となる円弧を有する辺とを備える平板である。ここでの円弧により、枕梁１４側に沿った辺の一端部と、中梁１３側に沿った辺の一端部を結ぶ滑らかな曲線となるように形成することができる。また、この平板は、一方の面を台枠下面板５２の下面に当接するように配置される。そして、上記円弧が存在する辺は水平補強板円弧部溶接部８１により台枠下面板５２の下面と接合される。当該円弧を有する辺を除く２辺は、枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗにより接合されている。すなわち、水平補強板８０の枕梁１４側に沿った辺は、枕梁端部溶接部１４Ｗにより枕梁上面板１４Ｕの鉄道車両構体１の長手方向１０３の端部に接合され、水平補強板８０の中梁１３側に沿った辺は、中梁端部溶接部１３Ｗにより中梁上面板１３Ｕの鉄道車両構体１の幅方向１０２の端部に接合される。 At the end of the pillow beam 14 in the longitudinal direction 103, the horizontal reinforcing plate 80 is arranged near the end of the middle beam 13 in the width direction 102. The horizontal reinforcing plate 80 is a flat plate having a side along the pillow beam 14 side, a side along the middle beam 13 side, and a side having an arc that is convex toward the pillow beam 14 and the middle beam 13. The arc here can be formed so as to form a smooth curve connecting one end of the side along the pillow beam 14 side and one end of the side along the middle beam 13 side. Further, the flat plate is arranged so that one surface is in contact with the lower surface of the underframe lower surface plate 52. Then, the side where the arc exists is joined to the lower surface of the underframe lower surface plate 52 by the horizontal reinforcing plate arc portion welded portion 81. The two sides excluding the side having the arc are joined by the pillow beam end welded portion 14W and the middle beam end welded portion 13W. That is, the side of the horizontal reinforcing plate 80 along the pillow beam 14 side is joined to the end of the railroad vehicle structure 1 of the pillow beam upper surface plate 14U by the pillow beam end welded portion 14W in the longitudinal direction 103, and the horizontal reinforcing plate 80 is joined. The side along the middle beam 13 side is joined to the end of the middle beam upper plate 13U in the width direction 102 by the middle beam end welded portion 13W.

水平補強板８０は、枕梁１４と中梁１３が台枠下面板５２の下面に接合される前に接合されるので、これらが接合される部位の枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗは、台枠下面板５２の下面に接合されていない。一方、水平補強板８０は、水平補強板円弧部溶接部８１により台枠下面板５２の下面と接合されている。また、水平補強板８０以外の部分では、枕梁１４と台枠下面板５２が枕梁端部溶接部１４Ｗにより接合され、中梁１３と台枠下面板５２が中梁端部溶接部１３Ｗにより接合されている。このため、台枠下面板５２との接合については、枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗの間は水平補強板円弧部溶接部８１により滑らかに接続されていることになる。なお、水平補強板８０の幅方向１０２の端部の位置は、台枠下面板・リブ結合部５４と一致するようにして、強度を高めている。 Since the horizontal reinforcing plate 80 is joined before the pillow beam 14 and the middle beam 13 are joined to the lower surface of the underframe lower surface plate 52, the pillow beam end welded portion 14W and the middle beam end of the portion where they are joined are joined. The portion welded portion 13W is not joined to the lower surface of the underframe lower surface plate 52. On the other hand, the horizontal reinforcing plate 80 is joined to the lower surface of the underframe lower surface plate 52 by the horizontal reinforcing plate arc portion welded portion 81. Further, in the portion other than the horizontal reinforcing plate 80, the pillow beam 14 and the underframe lower surface plate 52 are joined by the pillow beam end welded portion 14W, and the middle beam 13 and the underframe lower surface plate 52 are joined by the middle beam end welded portion 13W. It is joined. Therefore, regarding the joining with the underframe lower surface plate 52, the pillow beam end welded portion 14W and the middle beam end welded portion 13W are smoothly connected by the horizontal reinforcing plate arc welded portion 81. .. The position of the end portion of the horizontal reinforcing plate 80 in the width direction 102 is made to coincide with the underframe lower surface plate / rib joint portion 54 to increase the strength.

以上の構成によれば、牽引力１００が枕梁１４の長手方向１０３の端部を上下方向１０１に引き離したり押し付けたりする力が集中的に伝達されるときに、枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗが交差する位置に角部が形成されていないため、当該位置の剛性が低減される。また、当該位置における荷重の伝達を水平補強板円弧部溶接部８１に沿って滑らかに分散でき、牽引力１００に対して生じる当該位置周辺の台枠下面板５２と、枕梁端部上面板１４ＥＵ又は中梁上面板１３Ｕの間の開口を抑制できるので、牽引力に対する強度信頼性を向上できる鉄道車両構体１を提供することができる。 According to the above configuration, when the traction force 100 intensively transmits the force of pulling or pushing the end portion of the pillow beam 14 in the longitudinal direction 103 in the vertical direction 101, the welded portion 14W at the end of the pillow beam and the center Since the corner portion is not formed at the position where the beam end welded portion 13W intersects, the rigidity of the position is reduced. Further, the transmission of the load at the position can be smoothly dispersed along the welded portion 81 of the arc portion of the horizontal reinforcing plate, and the underframe lower surface plate 52 around the position generated with respect to the traction force 100 and the pillow beam end upper surface plate 14EU or Since the opening between the middle beam upper plate 13U can be suppressed, it is possible to provide the railroad vehicle structure 1 capable of improving the strength reliability with respect to the traction force.

図５は、図４に示す鉄道車両構体の領域Ｄの枕梁上面周辺の構造を模擬した簡易解析モデルである。図６は、図５に示す鉄道車両構体の領域Ｄの枕梁上面周辺の構造を模擬した簡易解析モデルにおける完全拘束された辺の直近の位置の上下方向の変形量を示す図である。これらの図により、上記の構成による効果を解析によって検証した結果を説明する。 FIG. 5 is a simple analysis model simulating the structure around the upper surface of the pillow beam in the region D of the railway vehicle structure shown in FIG. FIG. 6 is a diagram showing the amount of vertical deformation of the position closest to the completely restrained side in the simple analysis model simulating the structure around the upper surface of the pillow beam in the region D of the railroad vehicle structure shown in FIG. With these figures, the result of having verified the effect of the above structure by analysis will be described.

図５は、上記位置周辺の構造を模擬した簡易解析モデルである。解析モデル９０は、枕梁端部上面板１４ＥＵを模擬した枕梁端部上面板模擬板９１と中梁上面板１３Ｕを模擬した中梁上面板模擬板９２から構成され、対称条件９３により上記位置周辺の形状を模擬している。台枠下面板５２の下面に接合される枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗに相当する辺に完全拘束条件９４が設けられ、牽引力１００により上下方向１０１に作用する力が伝達される枕梁１４の長手方向１０３の端部に位置する枕梁リブ１４Ｒが結合される位置に相当する辺に等分布荷重９５が負荷されている。本モデルにおいて、補強９６を追加した解析を実施し、その効果を検証した。なお、補強９６を追加した場合は、補強９６と結合される範囲の枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗに相当する辺における完全拘束条件９４を排除し、当該辺を除いた補強９６の辺に完全拘束条件９４を設けた。 FIG. 5 is a simple analysis model simulating the structure around the above position. The analysis model 90 is composed of a pillow beam end upper surface plate simulated plate 91 simulating the pillow beam end upper surface plate 14EU and a middle beam upper surface plate simulating plate 92 simulating the middle beam upper surface plate 13U, and the above position under the symmetry condition 93. It simulates the shape of the surrounding area. A complete restraint condition 94 is provided on the side corresponding to the pillow beam end welded portion 14W and the middle beam end welded portion 13W joined to the lower surface of the underframe lower surface plate 52, and the force acting on the vertical direction 101 by the traction force 100 is applied. An evenly distributed load 95 is applied to the side corresponding to the position where the corbel rib 14R located at the end of the transmitted corbel 14 in the longitudinal direction 103 is connected. In this model, an analysis with the addition of reinforcement 96 was performed and the effect was verified. When the reinforcement 96 is added, the complete restraint condition 94 on the side corresponding to the pillow beam end welded portion 14W and the middle beam end welded portion 13W in the range to be combined with the reinforcement 96 is excluded, and the relevant side is excluded. A complete restraint condition 94 was provided on the side of the reinforcing 96.

図６は、完全拘束条件９４を設けた辺の直近の位置（完全拘束条件９４を設けた辺に最も近い枕梁端部上面板模擬板９１、中梁上面板模擬板９２及び補強９６の節点群）の上下方向１０１の変形量を示す。破線で示される補強なし時変形量９７は補強がない場合の変形量を示し、点線で示される三角補強時変形量９８は角部の補強が上面からみて三角の形状のときの変形量を示し、実線で示される円弧補強時変形量９９は角部の補強が上面から見て円弧形状を有するときの変形量を示している。 FIG. 6 shows the nodes of the pillow beam end upper surface plate simulated plate 91, the middle beam upper surface plate simulated plate 92, and the reinforcement 96 closest to the side where the complete restraint condition 94 is provided (the node closest to the side where the complete restraint condition 94 is provided). The amount of deformation of 101 in the vertical direction of the group) is shown. The amount of deformation 97 without reinforcement indicated by the broken line indicates the amount of deformation without reinforcement, and the amount of deformation 98 with triangular reinforcement indicated by the dotted line indicates the amount of deformation when the corner reinforcement has a triangular shape when viewed from above. The deformation amount 99 at the time of arc reinforcement shown by the solid line indicates the deformation amount when the reinforcement of the corner portion has an arc shape when viewed from the upper surface.

補強９６が存在しないもの及び補強９６が三角による補強であるものにおいては、補強なし時変形量９７及び三角補強時変形量９８に示されるように、角部が形成される点に変形が集中して過大な変形を生じている。一方、補強９６が円弧補強であるものにおいては、円弧補強時変形量９９に示されるように、円弧に沿って変形が滑らかに推移し、変形が抑制されていることが分かる。すなわち、実構造における現象に置き換えて考えると、牽引力１００に対して生じる台枠下面板５２と枕梁端部上面板１４ＥＵ又は中梁上面板１３Ｕの間の開口が抑制されていることになる。 In the case where the reinforcement 96 does not exist and the reinforcement 96 is reinforced by a triangle, the deformation is concentrated at the point where the corner is formed, as shown in the deformation amount 97 without reinforcement and the deformation amount 98 with triangular reinforcement. Excessive deformation has occurred. On the other hand, when the reinforcement 96 is an arc reinforcement, it can be seen that the deformation smoothly changes along the arc and the deformation is suppressed, as shown in the deformation amount 99 at the time of arc reinforcement. That is, when considered in place of the phenomenon in the actual structure, the opening between the underframe lower surface plate 52 and the pillow beam end upper surface plate 14EU or the middle beam upper surface plate 13U that occurs with respect to the traction force 100 is suppressed.

なお、本実施形態では、中梁１３は、枕梁１４の一方（鉄道車両構体１の長手方向１０３の端部側）及び他方（鉄道車両構体１の長手方向１０３の中央側）に配置されているが、一方のみに配置されることもある。この場合、水平補強板８０は、枕梁１４の一方のみに配置される。 In the present embodiment, the middle beam 13 is arranged on one side of the pillow beam 14 (the end side of the railway vehicle structure 1 in the longitudinal direction 103) and the other (the center side of the railway vehicle structure 1 in the longitudinal direction 103). However, it may be placed on only one side. In this case, the horizontal reinforcing plate 80 is arranged only on one of the pillow beams 14.

また、本実施形態では、水平補強板８０は、枕梁１４の一方及び他方に配置されているが、枕梁１４の一方又は他方のどちらかのみに配置されていてもよく、この場合でも一定の効果を発揮することができる。 Further, in the present embodiment, the horizontal reinforcing plate 80 is arranged on one and the other of the pillow beams 14, but may be arranged on only one or the other of the pillow beams 14, and is constant even in this case. Can exert the effect of.

また、本実施形態では、中梁１３の幅方向１０２の両方の端部に水平補強板８０を配置しているが、台枠１０の幅方向１０２の中央寄り又は端部寄りのみに配置していてもよく、この場合でも一定の効果を発揮することができる。 Further, in the present embodiment, the horizontal reinforcing plates 80 are arranged at both ends of the center beam 13 in the width direction 102, but are arranged only near the center or the end of the underframe 10 in the width direction 102. However, even in this case, a certain effect can be exhibited.

また、本実施形態では、水平補強板８０の水平補強板円弧部溶接部８１が存在する辺が１つの円弧により構成されているが、この円弧が真円状であっても楕円状であっても、また、複数の円弧や円弧と直線の組合せにより構成されていてもよい。 Further, in the present embodiment, the side of the horizontal reinforcing plate 80 where the horizontal reinforcing plate arc portion welded portion 81 exists is composed of one arc, but even if this arc is a perfect circle, it is elliptical. Also, it may be composed of a plurality of arcs or a combination of arcs and straight lines.

また、本実施形態では、水平補強板８０が枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗにより枕梁端部上面板１４ＥＵと中梁上面板１３Ｕに接合されているが、水平補強板８０が枕梁端部上面板１４ＥＵ又は中梁上面板１３Ｕと一体で構成されていてもよい。 Further, in the present embodiment, the horizontal reinforcing plate 80 is joined to the pillow beam end upper surface plate 14EU and the middle beam upper surface plate 13U by the pillow beam end welded portion 14W and the middle beam end welded portion 13W. The plate 80 may be integrally formed with the pillow beam end upper surface plate 14EU or the middle beam upper surface plate 13U.

また、本実施形態では、枕梁１４は、枕梁上面板１４Ｕと枕梁下面板１４Ｄをハシゴ状に接続する枕梁リブ１４Ｒを有する中空形材であり押出方向を幅方向１０２と一致させているが、枕梁リブ１４Ｒがトラス状であっても押出方向を長手方向１０３と一致させていてもよい。 Further, in the present embodiment, the pillow beam 14 is a hollow profile having a corbel beam rib 14R that connects the pillow beam upper surface plate 14U and the pillow beam lower surface plate 14D in a corbel shape, and the extrusion direction is made to match the width direction 102. However, the corbel beam rib 14R may be truss-shaped or the extrusion direction may be aligned with the longitudinal direction 103.

また、本実施形態では、中梁１３は、コの字型の断面を有しているが、Ｉ型の断面などを有していてもよい。 Further, in the present embodiment, the middle beam 13 has a U-shaped cross section, but may have an I-shaped cross section or the like.

また、本実施形態では、中梁１３の幅方向１０２の端部は、中梁端部溶接部１３Ｗにより台枠下面板・リブ結合部５４における台枠下面板５２の下面に接合されているが、台枠下面板・リブ結合部５４に位置しない台枠下面板５２の下面に接合されていてもよい。この場合、中梁端部溶接部１３Ｗが台枠１０の剛性の低い位置に存在することになるので、中梁端部溶接部１３Ｗを介した台枠１０への荷重の伝達が低減し、枕梁端部溶接部１４Ｗに力がかかり、ここでの強度が厳しい状態になる可能性はある。 Further, in the present embodiment, the end portion of the middle beam 13 in the width direction 102 is joined to the lower surface of the underframe lower surface plate 52 in the underframe lower surface plate / rib joint portion 54 by the middle beam end portion welded portion 13W. , It may be joined to the lower surface of the underframe lower surface plate 52 that is not located at the underframe lower plate / rib joint portion 54. In this case, since the middle beam end welded portion 13W exists at a position where the rigidity of the underframe 10 is low, the transmission of the load to the underframe 10 via the middle beam end welded portion 13W is reduced, and the pillow A force is applied to the beam end welded portion 14W, and there is a possibility that the strength here will be severe.

また、本実施形態では、水平補強板８０は枕梁１４と中梁１３が台枠下面板５２の下面に接合される前に接合されるので、これらが接合される部分では枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗは台枠下面板５２の下面に接合されていない。しかし、枕梁１４と中梁１３が台枠下面板５２の下面に接合された後に水平補強板８０を枕梁１４と中梁１３に接合して、これらが接合される部分において枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗが台枠下面板５２の下面に接合されるようにしてもよい。この場合、枕梁端部溶接部１４Ｗと中梁端部溶接部１３Ｗが交差する位置に角部が形成される。このため、水平補強板円弧部溶接部８１を介した台枠１０への荷重の伝達により当該位置における荷重の伝達負担は軽減されるものの、当該角部に負荷がかかり強度が厳しい状態になる可能性はある。 Further, in the present embodiment, since the horizontal reinforcing plate 80 is joined before the pillow beam 14 and the middle beam 13 are joined to the lower surface of the underframe lower surface plate 52, the end portion of the pillow beam is welded at the portion where these are joined. The portion 14W and the middle beam end welded portion 13W are not joined to the lower surface of the underframe lower surface plate 52. However, after the pillow beam 14 and the middle beam 13 are joined to the lower surface of the underframe lower surface plate 52, the horizontal reinforcing plate 80 is joined to the pillow beam 14 and the middle beam 13, and the end portion of the pillow beam is joined at the portion where they are joined. The welded portion 14W and the middle beam end welded portion 13W may be joined to the lower surface of the underframe lower surface plate 52. In this case, a corner portion is formed at a position where the pillow beam end welded portion 14W and the middle beam end welded portion 13W intersect. Therefore, although the load transmission load at the position is reduced by transmitting the load to the underframe 10 via the welded portion 81 of the arc portion of the horizontal reinforcing plate, the load may be applied to the corner portion and the strength may be severe. There is sex.

また、本実施形態では、水平補強板８０の台枠１０の幅方向１０２の端部側の端部は、中梁端部溶接部１３Ｗから中梁１３の外方に向かって最も近い位置にある台枠下面板・リブ結合部５４に位置しているが、それより遠い位置にある台枠下面板・リブ結合部５４に位置していてもよい。また、水平補強板８０の台枠１０の幅方向１０２の端部側の端部は、台枠下面板・リブ結合部５４に位置していなくてもよいが、水平補強板円弧部溶接部８１を介した台枠１０への荷重の伝達が滑らかに推移しない可能性もある。 Further, in the present embodiment, the end portion of the horizontal reinforcing plate 80 on the width direction 102 of the underframe 10 is closest to the middle beam end welded portion 13W toward the outside of the middle beam 13. Although it is located at the underframe lower plate / rib joint portion 54, it may be located at the underframe lower plate / rib joint portion 54 located at a position farther than that. Further, the end portion of the horizontal reinforcing plate 80 on the width direction 102 of the underframe 10 does not have to be located at the underframe lower surface plate / rib joint portion 54, but the horizontal reinforcing plate arc portion welded portion 81 There is a possibility that the transfer of the load to the underframe 10 through the underframe 10 does not change smoothly.

なお、本発明は上記した実施形態に限定されるものではなく、上記以外の様々な変形例が含まれる。例えば、上記した実施形態は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施形態の構成の一部を他の実施形態の構成に置き換えることが可能であり、また、ある実施形態の構成に他の実施形態の構成を加えることも可能である。また、各実施形態の構成の一部について、他の構成の追加・削除・置換をすることが可能である。 The present invention is not limited to the above-described embodiment, and includes various modifications other than the above. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

１…鉄道車両構体、１０…台枠、１１…側梁、１２…端梁、１３…中梁、１３Ｕ…中梁上面板、１３Ｄ…中梁下面板、１３Ｒ…中梁リブ、１３Ｗ…中梁端部溶接部、１４…枕梁、１４Ｕ…枕梁上面板、１４Ｄ…枕梁下面板、１４Ｒ…枕梁リブ、１４ＥＵ…枕梁端部上面板、１４ＥＤ…枕梁端部下面板、１４Ｗ…枕梁端部溶接部、１５…横梁、１６…空気ばね受、１７…中心ピン、１８…ボルト、１９…貫通管、２０…側構体、２１…窓、２２…出入口、３０…屋根構体、４０…妻構体、４１…貫通路、５１…台枠上面板、５２…台枠下面板、５３…台枠リブ、５４…台枠下面板・リブ結合部、８０…水平補強板、８１…水平補強板円弧部溶接部、９０…解析モデル、９１…枕梁端部上面板模擬板、９２…中梁上面板模擬板、９３…対称条件、９４…完全拘束、９５…等分布荷重、９６…補強、９７…補強なし時変形量、９８…三角補強時変形量、９９…円弧補強時変形量、１００…牽引力、１０１…上下方向、１０２…幅方向、１０３…長手方向 1 ... Railway vehicle structure, 10 ... Underframe, 11 ... Side beam, 12 ... End beam, 13 ... Middle beam, 13U ... Middle beam top plate, 13D ... Middle beam bottom plate, 13R ... Middle beam rib, 13W ... Middle beam End welded part, 14 ... Pillow beam, 14U ... Pillow beam top plate, 14D ... Pillow beam bottom plate, 14R ... Pillow beam rib, 14EU ... Pillow beam end top plate, 14ED ... Pillow beam end bottom plate, 14W ... Pillow Beam end welded part, 15 ... Cross beam, 16 ... Air spring receiver, 17 ... Center pin, 18 ... Bolt, 19 ... Through pipe, 20 ... Side structure, 21 ... Window, 22 ... Doorway, 30 ... Roof structure, 40 ... Wife structure, 41 ... Through path, 51 ... Underframe top plate, 52 ... Underframe bottom plate, 53 ... Underframe rib, 54 ... Underframe bottom plate / rib joint, 80 ... Horizontal reinforcement plate, 81 ... Horizontal reinforcement plate Arc welded part, 90 ... analysis model, 91 ... pillow beam end top plate simulated plate, 92 ... middle beam top plate simulated plate, 93 ... symmetric condition, 94 ... perfect restraint, 95 ... evenly distributed load, 96 ... reinforcement, 97 ... Deformation amount without reinforcement, 98 ... Deformation amount with triangular reinforcement, 99 ... Deformation amount with arc reinforcement, 100 ... Traction force, 101 ... Vertical direction, 102 ... Width direction, 103 ... Longitudinal direction

Claims

上面を構成する屋根構体と、側面を構成する側構体と、下面を構成する台枠と、端面を構成する妻構体を有し、前記台枠の下面に、前記台枠の幅方向に延伸する枕梁と、前記台枠の長手方向に延伸する中梁を接合した軌条車両構体において、
前記台枠は、上面を構成する台枠上面板と、下面を構成する台枠下面板と、前記台枠上面板と前記台枠下面板を結合する台枠リブとを有し、
前記枕梁は、上面を構成する枕梁上面板と、下面を構成する枕梁下面板と、前記枕梁上面板と前記枕梁下面板を結合する枕梁リブとを有し、
前記中梁は、上面を構成する中梁上面板と、下面を構成する中梁下面板と、前記中梁上面板と前記中梁下面板を結合する中梁リブとを有し、
前記枕梁の前記軌条車両構体の長手方向の端部において、前記枕梁上面板と前記中梁上面板が、前記枕梁下面板と前記中梁下面板が、前記枕梁リブと前記中梁リブがそれぞれ接合され、
前記枕梁上面板の前記軌条車両構体の長手方向の端部と、前記中梁上面板の前記軌条車両構体の幅方向の端部は、前記台枠下面板の下面に接合されており、
前記枕梁の前記軌条車両構体の長手方向の端部の少なくとも一箇所において、前記枕梁に対して前記軌条車両構体の長手方向の端部側又は中央側であり、且つ、前記中梁に対して前記軌条車両構体の幅方向の端部側又は中央側である位置に水平補強板を配置し、
前記水平補強板は、前記枕梁上面板の前記軌条車両構体の長手方向の端部に接合される辺と、前記中梁上面板の前記軌条車両構体の幅方向の端部に接合される辺と、前記台枠下面板の下面に接合され他の二辺に対して凸となる円弧の辺で構成されること、
を特徴とする軌条車両構体。 It has a roof structure that constitutes the upper surface, a side structure that constitutes the side surface, an underframe that constitutes the lower surface, and a corbel structure that constitutes the end face, and extends to the lower surface of the underframe in the width direction of the underframe. In a rail vehicle structure in which a pillow beam and a middle beam extending in the longitudinal direction of the underframe are joined.
The underframe has an underframe upper surface plate constituting an upper surface, an underframe lower surface plate forming a lower surface, and an underframe rib connecting the underframe upper surface plate and the underframe lower surface plate.
The corbel beam has a corbel beam upper surface plate forming an upper surface, a corbel beam lower surface plate forming a lower surface, and a corbel beam rib connecting the corbel beam upper surface plate and the corbel beam lower surface plate.
The middle beam has a middle beam upper surface plate forming an upper surface, a middle beam lower surface plate forming a lower surface, and a middle beam rib connecting the middle beam upper surface plate and the middle beam lower surface plate.
At the longitudinal end of the corbel vehicle structure of the corbel, the corbel upper surface plate and the middle beam upper surface plate, the pillow beam lower surface plate and the middle beam lower surface plate, the corbel beam rib and the middle beam. Each rib is joined,
The longitudinal end of the rail vehicle structure of the pillow beam upper surface plate and the widthwise end of the rail vehicle structure of the middle beam upper surface plate are joined to the lower surface of the underframe lower surface plate.
At least one of the longitudinal ends of the rail vehicle structure of the corbel beam, with respect to the corbel beam on the longitudinal end side or center side of the rail vehicle structure and with respect to the middle beam. A horizontal reinforcing plate is placed at a position on the end side or the center side in the width direction of the rail vehicle structure.
The horizontal reinforcing plate has a side joined to the longitudinal end of the rail vehicle structure of the corbel upper surface plate and a side joined to the widthwise end of the rail vehicle structure of the middle beam upper surface plate. And, it is composed of the sides of an arc that is joined to the lower surface of the underframe lower plate and is convex with respect to the other two sides.
A rail vehicle structure characterized by.

請求項１に記載された軌条車両構体において、
前記中梁上面板の前記軌条車両構体の幅方向の端部は、前記台枠リブに結合される部位の前記台枠下面板の下面に接合されること、
を特徴とする軌条車両構体。 In the rail vehicle structure according to claim 1,
The widthwise end of the rail vehicle structure of the middle beam upper surface plate is joined to the lower surface of the underframe lower surface plate at a portion to be connected to the underframe rib.
A rail vehicle structure characterized by.

請求項１に記載された軌条車両構体において、
前記水平補強板の前記枕梁上面板の前記軌条車両構体の長手方向の端部に接合される辺と前記台枠下面板の下面に接合される辺が交差する位置は、前記台枠リブに結合される部位の前記台枠下面板の下面に位置すること、
を特徴とする軌条車両構体。 In the rail vehicle structure according to claim 1,
The position where the side of the horizontal reinforcing plate joined to the longitudinal end of the rail vehicle structure and the side joined to the lower surface of the underframe lower plate intersect is located on the underframe rib. Being located on the lower surface of the underframe lower plate of the part to be joined,
A rail vehicle structure characterized by.

請求項１に記載された軌条車両構体において、
前記水平補強板における前記枕梁上面板の前記軌条車両構体の長手方向の端部に接合される辺と前記中梁上面板の前記軌条車両構体の幅方向の端部に接合される辺は、前記台枠下面板の下面に接合されないこと、
を特徴とする軌条車両構体。 In the rail vehicle structure according to claim 1,
The side of the horizontal reinforcing plate that is joined to the longitudinal end of the rail vehicle structure and the side of the middle beam top plate that is joined to the widthwise end of the rail vehicle structure are Do not join to the lower surface of the underframe lower plate,
A rail vehicle structure characterized by.