JP6837182B2 - Underframe structure of rail vehicle and rail vehicle - Google Patents

Underframe structure of rail vehicle and rail vehicle Download PDF

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JP6837182B2
JP6837182B2 JP2020509547A JP2020509547A JP6837182B2 JP 6837182 B2 JP6837182 B2 JP 6837182B2 JP 2020509547 A JP2020509547 A JP 2020509547A JP 2020509547 A JP2020509547 A JP 2020509547A JP 6837182 B2 JP6837182 B2 JP 6837182B2
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underframe
vehicle
underframe structure
corbel
adapter
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JPWO2020075264A1 (en
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宗太 木村
宗太 木村
一任 是石
一任 是石
敏彦 用田
敏彦 用田
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Hitachi Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/14—Side bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F1/00—Underframes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Connection Of Plates (AREA)

Description

本発明は、軌条車両の台枠構造及び軌条車両に関するものである。 The present invention relates to an underframe structure of a rail vehicle and a rail vehicle.

一般に、車両構体（以下、構体という）は、床面をなす台枠と、台枠の幅方向の両端部に配置される側構体と、台枠の長手方向の両端部に配置される妻構体と、側構体と妻構体の上部に配置される屋根構体とから構成される６面体の構造物である。 In general, a vehicle structure (hereinafter referred to as a structure) includes an underframe forming a floor surface, side structures arranged at both ends in the width direction of the underframe, and a wife structure arranged at both ends in the longitudinal direction of the underframe. It is a hexahedral structure composed of a side structure and a roof structure arranged above the wife structure.

台枠（以下、台枠構造ともいう）は、台枠の幅方向の両端部にその長手方向に沿って備えられる側梁と、側梁の長手方向の両端部同士を接続する端梁と、構体の長手方向端部から所定距離の位置に端梁に沿って備えられる枕梁と、端梁と枕梁とを構体に接続するための構体長手方向に沿って配置される中梁とから構成される。 The underframe (hereinafter, also referred to as an underframe structure) includes side beams provided at both ends in the width direction of the underframe along the longitudinal direction, and end beams connecting both ends in the longitudinal direction of the side beams. From the pillow beam provided along the end beam at a predetermined distance from the longitudinal end of the structure and the middle beam arranged along the longitudinal direction of the structure for connecting the end beam and the pillow beam to the structure. It is composed.

枕梁の下面に構体上下方向に沿って備えられる中心ピンは、台車を構成する台車枠に接続される。車両の加速および減速の際、中心ピンを介して台車から枕梁に車両前後方向の荷重が伝達される。 A central pin provided on the lower surface of the pillow beam along the vertical direction of the structure is connected to a bogie frame constituting the bogie. When accelerating and decelerating the vehicle, the load in the front-rear direction of the vehicle is transmitted from the bogie to the pillow beam via the center pin.

一方、鉄道車両の組立性向上の観点から、床下に取り付けられる配線やダクトの取付を容易化することが求められる。取付を容易化する上では、中梁を省略した構造とし、台車に枕梁を取り付けた状態で構体に組み付けることが有効である。このような中梁を省略した構体に対応する台車構造として、特許文献１、２では、側梁とのみボルト締結される枕梁を備えた台車が提案されている。 On the other hand, from the viewpoint of improving the assemblability of railway vehicles, it is required to facilitate the installation of wiring and ducts installed under the floor. In order to facilitate the installation, it is effective to have a structure in which the middle beam is omitted and to assemble it to the structure with the pillow beam attached to the bogie. As a bogie structure corresponding to such a structure in which the middle beam is omitted, Patent Documents 1 and 2 propose a bogie provided with a pillow beam that is bolted only to the side beam.

欧州特許出願公開第２ ５００ ２３１号明細書European Patent Application Publication No. 2500 231 欧州特許出願公開第２ ５４０ ５９２号明細書European Patent Application Publication No. 2 540 592

鉄道車両の台枠構造において、中梁を省略した場合、台車から枕梁に伝達される荷重は側梁のみに伝達されるため、枕梁と側梁の接続部に負荷される荷重が増加する。また、連結時においても、荷重は端梁から側梁のみに伝達されるため、上記と同様に枕梁と側梁の接続部に負荷される荷重が増加する。 In the underframe structure of a railroad vehicle, if the center beam is omitted, the load transmitted from the corbel to the corbel is transmitted only to the side beam, so that the load applied to the connection between the corbel and the side beam increases. .. Further, even at the time of connection, since the load is transmitted only from the end beam to the side beam, the load applied to the connection portion between the pillow beam and the side beam increases as described above.

従って特許文献１、２に記載の台車構造では、車体が牽引時や連結時の荷重を受けた場合において、枕梁を構体に取り付けるためのボルトに対して負荷されるせん断荷重が増大するため、ボルト締結部における信頼性が低下する虞れがある。 Therefore, in the trolley structure described in Patent Documents 1 and 2, when the vehicle body receives a load at the time of towing or connecting, the shear load applied to the bolt for attaching the pillow beam to the structure increases. There is a risk that the reliability of the bolt fastening part will decrease.

本発明の目的は、かかる従来技術の課題に鑑みてなされたものであり、車体の組立性向上に寄与するとともに信頼性の高い軌条車両の台枠構造及び軌条車両を提供することである。 An object of the present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to contribute to an improvement in assembling property of a vehicle body and to provide a highly reliable underframe structure of a rail vehicle and a rail vehicle.

上記の課題を解決するために、代表的な本発明の台枠構造の一つでは、側梁と枕梁とを有し、前記枕梁を介して台車に連結される軌条車両の台枠構造において、前記側梁に取り付けられ、車両長手方向に沿って並んだ複数の凸部を備えたアダプターを有し、前記枕梁がキーを備えており、前記キーが前記アダプターの凸部の間に配置され、前記キーと前記凸部とが車両長手方向に延在するボルトを用いて締結されていることにより達成される。 In order to solve the above problems, one of the typical underframe structures of the present invention is a rail vehicle underframe structure having a side beam and a corbel beam and connected to the corbel via the corbel beam. In the above, the adapter is attached to the side beam and has a plurality of convex portions arranged along the longitudinal direction of the vehicle, the pillow beam is provided with a key, and the key is located between the convex portions of the adapter. It is arranged and achieved by fastening the key and the convex portion with a bolt extending in the longitudinal direction of the vehicle.

本発明によれば、車体の組立性向上に寄与するとともに信頼性の高い軌条車両の台枠構造及び軌条車両を提供することが可能となる。
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, it is possible to provide an underframe structure of a rail vehicle and a rail vehicle with high reliability while contributing to the improvement of the assembling property of the vehicle body.
Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

図１は、実施形態１に関する台枠構造を備えた鉄道車両の側面視図である。FIG. 1 is a side view of a railroad vehicle having an underframe structure according to the first embodiment. 図２は、実施形態１に関する台枠構造を備えた車両構体の下面斜視図である。FIG. 2 is a bottom perspective view of a vehicle structure having an underframe structure according to the first embodiment. 図３は、実施形態１に関する台枠構造における枕梁とアダプターの外観図である。FIG. 3 is an external view of the pillow beam and the adapter in the underframe structure according to the first embodiment. 図４は、実施形態１に関するアダプターの外観図である。FIG. 4 is an external view of the adapter according to the first embodiment. 図５は、実施形態１に関するアダプターの断面視図である。FIG. 5 is a cross-sectional view of the adapter according to the first embodiment. 図６は、実施形態２に関する台枠構造および台車の断面視図である。FIG. 6 is a cross-sectional view of the underframe structure and the bogie according to the second embodiment. 図７は、実施形態３に関する台枠構造および台車の断面視図である。FIG. 7 is a cross-sectional view of the underframe structure and the bogie according to the third embodiment. 図８は、実施形態４に関する端梁と側梁の接続部の外観図である。FIG. 8 is an external view of the connection portion between the end beam and the side beam according to the fourth embodiment.

本発明において開示する実施形態は、側梁に枕梁をボルト締結した構体に関するものである。以下の説明に用いる方向を、次のように定義する。図に示す構体１において、車両長手方向（前後方向、レール方向）をＸ方向、車両幅方向（枕木方向）をＹ方向、および高さ方向をＺ方向とする。なお単に、Ｘ方向、Ｙ方向およびＺ方向と記す場合がある。 The embodiment disclosed in the present invention relates to a structure in which a pillow beam is bolted to a side beam. The direction used in the following explanation is defined as follows. In the structure 1 shown in the figure, the vehicle longitudinal direction (front-rear direction, rail direction) is the X direction, the vehicle width direction (sleeper direction) is the Y direction, and the height direction is the Z direction. It may be simply described as the X direction, the Y direction, and the Z direction.

軌条車両は、敷設される軌道に沿って運行される車両であり、鉄道車両、モノレール車両、路面電車、新交通車両等を含む。軌条車両の代表例として、鉄道車両を取り上げて本発明の実施の形態を説明する。 Rail vehicles are vehicles that are operated along the track to be laid, and include railway vehicles, monorail vehicles, trams, new transportation vehicles, and the like. An embodiment of the present invention will be described by taking up a railroad vehicle as a typical example of a rail vehicle.

（実施形態１）
図１から図５に実施形態１として示す台枠１０を備えた鉄道車両の構体１は、図１に示すように、床面をなす台枠１０と、台枠１０の幅方向の両端部に配置される側構体３０と、台枠１０の長手方向の両端部に配置される妻構体４０と、側構体３０と妻構体４０の上部に配置される屋根構体５０とから構成される。
さらに台枠１０は、図１又は図２に示すように、台枠１０の幅方向両端部において長手方向に沿って延在する一対の側梁１１と、側梁１１の車両長手方向の両端部同士を接続する端梁１２と、台枠１０下面の台車枠３と対向する位置に設けた枕梁１３とを有している。また台枠１０は、図３に示すように、枕梁１３の車両幅方向両端からＹ方向に突出する部分を設けている。本明細書においては、この突出する部分を「キー」と称する。以下の実施形態では、キー１８は、Ｘ−Ｚ面の断面が矩形状であり、Ｘ−Ｙ面の断面が矩形状であり、Ｙ−Ｚ面の断面が矩形状である。ただし、いずれかの断面の少なくとも一つを矩形以外の形状としてもよい。キー１８のＸ方向側面にはねじ穴１９を設けている。(Embodiment 1)
As shown in FIG. 1, the structure 1 of the railway vehicle provided with the underframe 10 shown as the first embodiment in FIGS. 1 to 5 has the underframe 10 forming the floor surface and both ends of the underframe 10 in the width direction. It is composed of a side structure 30 to be arranged, a wife structure 40 arranged at both ends in the longitudinal direction of the underframe 10, and a roof structure 50 arranged above the side structure 30 and the wife structure 40.
Further, as shown in FIG. 1 or 2, the underframe 10 includes a pair of side beams 11 extending along the longitudinal direction at both ends in the width direction of the underframe 10, and both ends of the side beams 11 in the vehicle longitudinal direction. It has an end beam 12 that connects them to each other, and a pillow beam 13 that is provided at a position facing the carriage frame 3 on the lower surface of the underframe 10. Further, as shown in FIG. 3, the underframe 10 is provided with portions of the pillow beam 13 protruding in the Y direction from both ends in the vehicle width direction. In the present specification, this protruding portion is referred to as a "key". In the following embodiments, the key 18 has a rectangular cross section of the XX plane, a rectangular cross section of the XY plane, and a rectangular cross section of the YY plane. However, at least one of the cross sections may have a shape other than a rectangle. A screw hole 19 is provided on the side surface of the key 18 in the X direction.

さらに、側梁１１（図３では不図示）の下部において、キー１８と対向する位置に、アダプター１５をそれぞれ配置している。アダプター１５は、図５に示すように、車両長手方向に沿って延在する梁状本体１５ａの下面に、３つの凸部１６を車両長手方向に沿って並べて設けている。図５に示すように、車両長手方向両端側の凸部１６は台形断面を有し、中央の凸部１６は矩形断面を有する。図４と図５に示すように、Ｘ方向両端の凸部１６には、ボルトＢＴの頭部を保持するような段付き形状を有する穴部１７が、Ｘ方向に貫通して設けられている。 Further, in the lower part of the side beam 11 (not shown in FIG. 3), the adapter 15 is arranged at a position facing the key 18. As shown in FIG. 5, the adapter 15 is provided with three convex portions 16 arranged side by side along the vehicle longitudinal direction on the lower surface of the beam-shaped main body 15a extending along the vehicle longitudinal direction. As shown in FIG. 5, the convex portions 16 on both ends in the longitudinal direction of the vehicle have a trapezoidal cross section, and the central convex portion 16 has a rectangular cross section. As shown in FIGS. 4 and 5, the convex portions 16 at both ends in the X direction are provided with holes 17 having a stepped shape for holding the head of the bolt BT so as to penetrate in the X direction. ..

アダプター１５は、梁状本体１５ａの両端近傍でＺ方向に貫通した複数の穴部２０（図３）に挿通したボルト（不図示）を用いて、側梁１１の下面に予め締結される。台車組み付け時に、台車２に連結された枕梁１３と、側梁１１に取り付けられたアダプター１５とが、凸部１６間にキー１８を配置しつつ互いに交差するように組み合わされ、２本のボルトＢＴ（図５）が、両側の穴部１７から挿通されてねじ穴１９にそれぞれ螺合する。ボルトＢＴを締め上げることにより、凸部１６とキー１８の対向面が密着し、アダプター１５を介して枕梁１３と側梁１１とを連結できる。 The adapter 15 is previously fastened to the lower surface of the side beam 11 by using bolts (not shown) inserted into a plurality of holes 20 (not shown) penetrating in the Z direction near both ends of the beam-shaped main body 15a. At the time of assembling the bogie, the pillow beam 13 connected to the bogie 2 and the adapter 15 attached to the side beam 11 are combined so as to intersect each other while arranging the key 18 between the convex portions 16, and the two bolts. The BT (FIG. 5) is inserted through the holes 17 on both sides and screwed into the screw holes 19 respectively. By tightening the bolt BT, the convex portion 16 and the facing surface of the key 18 are brought into close contact with each other, and the pillow beam 13 and the side beam 11 can be connected via the adapter 15.

これにより、牽引時や連結時に枕梁１３と側梁１１の接続部に伝達される荷重の一部は、進行方向前方側の枕梁１３のキー１８とアダプター１５を締結するボルトＢＴには引張荷重として負荷され、また残りの荷重は、進行方向後方側の凸部１６とキー１８との密着面で負荷される。したがって、ボルトＢＴの負担する引張荷重が過大になることはない。一方、アダプター１５と側梁１１を締結するボルト（不図示）には、密着面の摩擦により負担される荷重を除いて、せん断荷重が負荷されるが、多数（例えば１つのアダプター１５に対し計１２本）のボルトを用いることで、個々のボルトの受ける荷重を分散させることが可能である。以上のことから，本実施形態により、枕梁１３と側梁１１の接続部を締結するボルトに対して、せん断荷重の集中を回避することが可能となる。
なお、全ての凸部１６とキー１８にＸ方向に貫通する同軸の孔を設け、これらの孔を貫通する長さの単一ボルトを差し込んで、その貫通端にナットを螺合させることで、枕梁１３とアダプター１５とを締結することもできる。As a result, a part of the load transmitted to the connection portion between the pillow beam 13 and the side beam 11 at the time of towing or connecting is pulled to the bolt BT that fastens the key 18 of the pillow beam 13 and the adapter 15 on the front side in the traveling direction. It is loaded as a load, and the remaining load is loaded on the contact surface between the convex portion 16 and the key 18 on the rear side in the traveling direction. Therefore, the tensile load borne by the bolt BT does not become excessive. On the other hand, a bolt (not shown) for fastening the adapter 15 and the side beam 11 is loaded with a shear load except for the load borne by the friction of the contact surface, but a large number (for example, a total for one adapter 15). By using 12 bolts), it is possible to disperse the load received by each bolt. From the above, according to the present embodiment, it is possible to avoid the concentration of the shear load on the bolt that fastens the connecting portion between the pillow beam 13 and the side beam 11.
In addition, all the convex portions 16 and the key 18 are provided with coaxial holes penetrating in the X direction, a single bolt having a length penetrating these holes is inserted, and a nut is screwed into the penetrating end. The pillow beam 13 and the adapter 15 can also be fastened.

（実施形態２）
実施形態２として示す台枠１０は、実施形態１の台枠構造において、台車２と台枠１０の断面視である図６に示すように、枕梁１３の車両幅方向中央部の高さ位置を両端部に対して高くした実施形態である。枕梁１３の車両幅方向中央部は、空気ばね４を介して台車２に対して支持されており、枕梁１３の車両幅方向中央部の下面に備えられた中心ピン１４は台車２に連結されている。(Embodiment 2)
The underframe 10 shown as the second embodiment is the height position of the central portion of the pillow beam 13 in the vehicle width direction as shown in FIG. 6, which is a cross-sectional view of the bogie 2 and the underframe 10 in the underframe structure of the first embodiment. Is an embodiment in which the height is raised with respect to both ends. The central portion of the pillow beam 13 in the vehicle width direction is supported by the air spring 4 with respect to the carriage 2, and the center pin 14 provided on the lower surface of the central portion of the pillow beam 13 in the vehicle width direction is connected to the carriage 2. Has been done.

本実施形態によれば、アダプター１５と、枕梁１３の車両幅方向両端部との接合位置をより低くできるので、側梁１１と枕梁１３との間にアダプター１５を設けた場合でも、構体１の高さ位置の変化を最小限に抑えるか、もしくは無くすことが可能となる。また、枕梁１３のＸ方向における曲げ剛性を向上できるため、車両上下方向の振動に対する枕梁１３の曲げ変形を低減することが可能となる。 According to the present embodiment, the joint position between the adapter 15 and both ends of the pillow beam 13 in the vehicle width direction can be lowered, so that even if the adapter 15 is provided between the side beam 11 and the pillow beam 13, the structure can be constructed. It is possible to minimize or eliminate the change in the height position of 1. Further, since the bending rigidity of the corbel beam 13 in the X direction can be improved, it is possible to reduce the bending deformation of the corbel beam 13 due to the vibration in the vertical direction of the vehicle.

（実施形態３）
実施形態３として示す台枠１０は、実施形態２の台枠構造において、台車２と台枠１０の断面視である図７に示すように、床構体５の車両幅方向中央部の高さ位置を両端に対して高くした実施形態である。床構体５の下面に取り付けられた側梁１１（図２）が、アダプター１５に連結されている。(Embodiment 3)
The underframe 10 shown as the third embodiment is the height position of the central portion of the floor structure 5 in the vehicle width direction as shown in FIG. 7, which is a cross-sectional view of the underframe 2 and the underframe 10 in the underframe structure of the second embodiment. Is an embodiment in which the height is raised with respect to both ends. A side beam 11 (FIG. 2) attached to the lower surface of the floor structure 5 is connected to the adapter 15.

本実施形態によれば、車両連結に用いる連結器受２１と床構体５との高さ位置のオフセット量を低減し、中梁を省略した場合においても連結時の荷重を床構体５に効率的に伝達することが可能となる。また、床板７と床構体５の間の空間に配線・ダクト６を配置することや、騒音対策用の防振材などを配置することが可能となる。さらに、床構体５のＸ方向の曲げ剛性を向上できるため、気密荷重や乗客の重量による車体の変形を低減することが可能となる。なお、実施形態３の構成を、実施形態１の構成と組み合わせてもよい。 According to this embodiment, the offset amount of the height position between the coupler receiver 21 used for vehicle connection and the floor structure 5 is reduced, and the load at the time of connection is efficiently applied to the floor structure 5 even when the middle beam is omitted. It becomes possible to transmit to. Further, it is possible to arrange the wiring / duct 6 in the space between the floor plate 7 and the floor structure 5, and to arrange the anti-vibration material for noise control. Further, since the flexural rigidity of the floor structure 5 in the X direction can be improved, it is possible to reduce the deformation of the vehicle body due to the airtight load and the weight of the passengers. The configuration of the third embodiment may be combined with the configuration of the first embodiment.

（実施形態４）
実施形態４として示す台枠構造を備えた構体１は、端梁と側梁の接続部の概略図である図８に示すように、端梁１２と側梁１１の接続部に、連結荷重を側梁１１と床構体５に伝達する際の強度を高める補強部材として板部材２２Ａ、２２Ｂを設けた実施形態であり、実施形態１から実施形態３のいずれかの台枠構造に適用できる。(Embodiment 4)
In the structure 1 provided with the underframe structure shown as the fourth embodiment, as shown in FIG. 8 which is a schematic view of the connection portion between the end beam and the side beam, a connecting load is applied to the connection portion between the end beam 12 and the side beam 11. It is an embodiment in which plate members 22A and 22B are provided as reinforcing members for increasing the strength when transmitting to the side beam 11 and the floor structure 5, and can be applied to any of the underframe structures of the first to third embodiments.

板材２２Ａは、縦板２２ａと横板２２ｂとを有する。中央で折れ曲がった縦板２２ａは、遠端部側で端梁１２から離間するに従って幅狭となる台形状を有しており、近端部が端梁１２に溶接され、底縁が床構体５に溶接されている。また床構体５から離間して配置された横板２２ｂは、遠端部側で端梁１２から離間するに従って幅狭となる台形状を有しており、近端部が端梁１２に溶接され、一方の側縁が縦板２２ａに溶接され、他方の側縁が側梁１１の側面に溶接されている。つまり、遠端部側の板部材２２Ａは、端梁１２から離間するに従って断面形状が小さくなっている。 The plate material 22A has a vertical plate 22a and a horizontal plate 22b. The vertical plate 22a bent at the center has a trapezoidal shape that becomes narrower as it is separated from the end beam 12 on the far end side, the near end portion is welded to the end beam 12, and the bottom edge is the floor structure 5. Welded to. Further, the horizontal plate 22b arranged apart from the floor structure 5 has a trapezoidal shape that becomes narrower as it is separated from the end beam 12 on the far end side, and the near end portion is welded to the end beam 12. One side edge is welded to the vertical plate 22a, and the other side edge is welded to the side surface of the side beam 11. That is, the cross-sectional shape of the plate member 22A on the far end side becomes smaller as it is separated from the end beam 12.

板部材２２Ｂは、縦板２２ｃと横板２２ｄとを有する。縦板２２ｃは、遠端部側で端梁１２から離間するに従って幅狭となる台形状を有しており、近端部が端梁１２に溶接され、底縁が側梁１１の上面に溶接され、上縁が横板２２ｄの下面中央に溶接されている。また、矩形状の横板２２ｄは中央で折れ曲がり、近端部が端梁１２に溶接されている。つまり、遠端部側の板部材２２Ｂは、端梁１２から離間するに従って高さが低くなっている。 The plate member 22B has a vertical plate 22c and a horizontal plate 22d. The vertical plate 22c has a trapezoidal shape that becomes narrower as it is separated from the end beam 12 on the far end side, the near end portion is welded to the end beam 12, and the bottom edge is welded to the upper surface of the side beam 11. The upper edge is welded to the center of the lower surface of the horizontal plate 22d. Further, the rectangular horizontal plate 22d is bent at the center, and the near end portion is welded to the end beam 12. That is, the height of the plate member 22B on the far end side decreases as the distance from the end beam 12 increases.

板部材２２Ａ、２２Ｂにより、端梁１２と側梁１１の接続部の強度を高め、中梁を省略した場合においても、応力緩和を図りつつ連結時の荷重を側梁１１と床構体５に伝達することが可能となる。なお、板部材２２Ａ、２２Ｂの少なくとも一方を設ければ足りる。 The plate members 22A and 22B increase the strength of the connecting portion between the end beam 12 and the side beam 11, and even when the middle beam is omitted, the load at the time of connection is transmitted to the side beam 11 and the floor structure 5 while relaxing stress. It becomes possible to do. It is sufficient to provide at least one of the plate members 22A and 22B.

以上に示した実施例においては、アダプター１５はボルト締結によって構体１に取り付けられるものとしたが、溶接によって構体に取り付けて構成することも可能である。また、枕梁１３に、台車２に取り付けられるヨーダンパからの荷重を受ける部材を取り付ける構成とすることも可能である。 In the above-described embodiment, the adapter 15 is attached to the structure 1 by bolting, but it can also be attached to the structure by welding. Further, it is also possible to attach a member that receives a load from the yaw damper attached to the carriage 2 to the pillow beam 13.

なお、本発明は上記した実施の形態に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施の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、ある実施の形態における構成の一部を他の実施の形態の構成に置き換えることが可能であり、また、ある実施の形態の構成に他の実施の形態の構成を加えることも可能である。また、各実施の形態における構成の一部について、他の構成の追加・削除・置換をすることも可能である。 The present invention is not limited to the above-described embodiment, and includes various modifications. 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 in 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 also possible to add / delete / replace a part of the configuration in each embodiment with another configuration.

１・・・構体、２・・・台車、３・・・台車枠、４・・・空気ばね、５・・・床構体、６・・・配線・ダクト、７・・・床板、１０・・・台枠、１１・・・側梁、１２・・・端梁、１３・・・枕梁、１４・・・中心ピン、１５・・・アダプター、１６・・・凸部、１７・・・穴部、１８・・・キー、１９・・・ねじ穴、２０・・・穴部、２１・・・連結器受、２２Ａ，２２Ｂ・・・板部材、３０・・・側構体、４０・・・妻構体、５０・・・屋根構体 1 ... structure, 2 ... trolley, 3 ... trolley frame, 4 ... air spring, 5 ... floor structure, 6 ... wiring / duct, 7 ... floor board, 10 ...・ Underframe, 11 ・ ・ ・ Side beam, 12 ・ ・ ・ End beam, 13 ・ ・ ・ Pillow beam, 14 ・ ・ ・ Center pin, 15 ・ ・ ・ Adapter, 16 ・ ・ ・ Convex part, 17 ・ ・ ・ Hole Part, 18 ... key, 19 ... screw hole, 20 ... hole part, 21 ... coupler receiver, 22A, 22B ... plate member, 30 ... side structure, 40 ... Wife structure, 50 ... roof structure

Claims (6)

側梁と枕梁とを有し、前記枕梁を介して台車に連結される軌条車両の台枠構造において、
前記側梁に取り付けられ、車両長手方向に沿って並んだ複数の凸部を備えたアダプターを有し、
前記枕梁がキーを備えており、
前記キーが前記アダプターの凸部の間に配置され、前記キーと前記凸部とが車両長手方向に延在するボルトを用いて締結されている、
ことを特徴とする台枠構造。In the underframe structure of a rail vehicle having a side beam and a corbel beam and connected to the bogie via the corbel beam.
It has an adapter attached to the side beam and having a plurality of protrusions arranged along the longitudinal direction of the vehicle.
The corbel has a key
The key is arranged between the protrusions of the adapter, and the key and the protrusion are fastened with bolts extending in the longitudinal direction of the vehicle.
The underframe structure is characterized by this. 請求項１に記載の台枠構造において、
前記アダプターの凸部の少なくとも一つが、車両長手方向に沿って延在する貫通穴を有し、
前記キーがねじ穴を有し、
前記ボルトが前記貫通穴に挿通されて、前記ねじ穴に螺合されている、
ことを特徴とする台枠構造。In the underframe structure according to claim 1,
At least one of the protrusions of the adapter has a through hole extending along the longitudinal direction of the vehicle.
The key has a screw hole
The bolt is inserted into the through hole and screwed into the screw hole.
The underframe structure is characterized by this. 請求項１又は２に記載の台枠構造において、
前記枕梁の車両幅方向における枕梁中央部が、前記台車に対して支持されており、前記枕梁の車両幅方向における枕梁両端部に、前記アダプターが取り付けられており、
前記枕梁中央部が、前記枕梁両端部に対して高い位置にある、
ことを特徴とする台枠構造。In the underframe structure according to claim 1 or 2.
The central portion of the corbel beam in the vehicle width direction of the corbel beam is supported with respect to the bogie, and the adapters are attached to both ends of the corbel beam in the vehicle width direction of the corbel beam.
The central portion of the corbel beam is located higher than both ends of the corbel beam.
The underframe structure is characterized by this. 請求項１から３のいずれか１項に記載の台枠構造において、
前記台枠構造は、前記側梁上に設けられた床構体を含み、
前記床構体の車両幅方向における中央部が，前記床構体の車両幅方向における両端部に対して高い位置にある、
ことを特徴とする台枠構造。In the underframe structure according to any one of claims 1 to 3,
The underframe structure includes a floor structure provided on the side beams.
The central portion of the floor structure in the vehicle width direction is located higher than both ends of the floor structure in the vehicle width direction.
The underframe structure is characterized by this. 請求項１から４のいずれか１項に記載の台枠構造において、
前記側梁と端梁の接続部を補強する補強部材が設けられている、
ことを特徴とする台枠構造。In the underframe structure according to any one of claims 1 to 4,
A reinforcing member for reinforcing the connection portion between the side beam and the end beam is provided.
The underframe structure is characterized by this. 請求項５に記載の台枠構造を備える、
ことを特徴とする軌条車両。The underframe structure according to claim 5 is provided.
A rail vehicle characterized by that.
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