JP2002145060A - Bolster-floor joining structure in underframe of railway rolling stock - Google Patents
Bolster-floor joining structure in underframe of railway rolling stockInfo
- Publication number
- JP2002145060A JP2002145060A JP2000338799A JP2000338799A JP2002145060A JP 2002145060 A JP2002145060 A JP 2002145060A JP 2000338799 A JP2000338799 A JP 2000338799A JP 2000338799 A JP2000338799 A JP 2000338799A JP 2002145060 A JP2002145060 A JP 2002145060A
- Authority
- JP
- Japan
- Prior art keywords
- bolster
- floor
- plate
- underframe
- pillow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Body Structure For Vehicles (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鉄道車両のボルス
タレス台車など各種の台車に支持される台枠における枕
梁・床結合構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolster / floor joint structure for an underframe supported by various bogies such as a bolsterless bogie of a railway car.
【０００２】[0002]
【従来の技術】図１０、図１１にボルスタレス台車と台
枠の関係を示している。ボルスタレス台車ａは概ね、左
右の側梁ｂ、ｂの中央部間を連結している本体部ｃの左
右方向中央部にある牽引部ｄと、本体部ｃの左右両端
部、左右の側梁ｂ、ｂの前後方向中央部にある空気ばね
ｅ、ｅとによって車体の台枠ｆを支持する。台枠ｆはボ
ルスタレス台車ａの支持を受けるために、側梁ｇ、ｇ間
に左右に渡された単体よりなる枕梁ｈを有している。枕
梁ｈは下面に図９、図１０に示す牽引部ｄの心皿ｄ１が
ボルトｄ２によって締結されるとともに、心皿中央に突
出している心皿中心ピンｄ３が図９、図１０に示す孔ｄ
４に嵌め合わされて、ボルスタレス台車ａ側からの前後
力を受けるとともに、枕梁ｈの下面の両端に前記空気ば
ねｅ、ｅが連結されて主として上下方向に弾性的に支持
され、牽引部ｄによって前後力が伝達され車体が走行す
るときの上下方向力および前後力が伝達される。2. Description of the Related Art FIGS. 10 and 11 show the relationship between a bolsterless carriage and an underframe. The bolsterless carriage a is generally composed of a traction portion d at the center in the left-right direction of the main body c connecting the central portions of the left and right side beams b, b, and both left and right ends of the main body c, and the left and right side beams b. , B support the underframe f of the vehicle body by the air springs e, e at the center in the front-rear direction. The underframe f has side beams g, and a single-piece bolster h passed between the side beams g to receive the support of the bolsterless carriage a. On the lower surface of the bolster h, the center plate d1 of the traction portion d shown in FIGS. 9 and 10 is fastened by bolts d2, and the center pin d3 projecting at the center of the center of the hole has a hole shown in FIGS. d
4 and receive the longitudinal force from the bolsterless carriage a side, and the air springs e and e are connected to both ends of the lower surface of the bolster h and are elastically supported mainly in the vertical direction. The longitudinal force is transmitted, and the vertical force and the longitudinal force when the vehicle body travels are transmitted.
【０００３】このようなボルスタレス台車ａはボルスタ
台車に比し構造が簡単で支持性能も向上し、広く使用さ
れるようになっている。Such a bolsterless carriage a has a simple structure and improved support performance as compared with the bolster carriage, and has been widely used.
【０００４】[0004]
【発明が解決しようとする課題】しかし、最近、車両の
走行において、車体の下まわり部分から異音が発生し問
題となっている。上記のようなボルスタレス台車ａで支
持した車体において特に著しい。この異音は車両が急に
加速または減速するとき、車両が直線路から曲線路に移
るとき、逆に曲線路から直線路に移るときに多く発生し
ている。この異音の発生につき本発明者等が上記のよう
なボルスタレス台車ａにおいて種々に実験や検討を行っ
たところ、台枠ｆの枕梁ｈとこれが支えている床ｊとの
部分であることが判明した。異音の発生の原因について
さらに検討を重ねた結果、枕梁ｈの、例えば２４９６ｍ
ｍ×７４０ｍｍといった比較的広い上面とこれに対向す
る床ｊの下面とが摺動したりぶつかり合うことの繰り返
しによって異音が発生することが判明した。However, recently, when the vehicle is running, a noise is generated from a lower part of the vehicle body, which is a problem. This is particularly remarkable in a vehicle body supported by the bolsterless carriage a as described above. This abnormal noise occurs frequently when the vehicle suddenly accelerates or decelerates, when the vehicle moves from a straight road to a curved road, and when the vehicle moves from a curved road to a straight road. The present inventors conducted various experiments and studies on the occurrence of the abnormal noise in the bolsterless carriage a as described above. As a result, the bolsterless carriage a was found to be a part of the pillow h of the underframe f and the floor j supported by the same. found. As a result of further study on the cause of the generation of the abnormal noise, for example, 2496 m
It has been found that abnormal noise is generated by repeated sliding and collision between a relatively large upper surface of mx 740 mm and the lower surface of the floor j opposed thereto.
【０００５】そこで、この部分での枕梁ｈと床ｊとの結
合構造について調べたところ、枕梁ｈは広い面を持った
ものであるが形材で形成するなどした単体として台枠ｆ
に組み付けられる関係上、車体全長に亘る通しの形材に
よる床ｊとの間に施す図９、図１０に示す溶接接合部ｋ
は枕梁ｈの両側辺と両端側辺のみとなっており、枕梁ｈ
の上面はほぼ四周位置まで床ｊの下面との間が接合され
ない構造になっていた。これは、例えば、軽金属製の中
空大型形材が台枠や床に用いられ出したことによる特殊
事情である。[0005] The joint structure between the bolster h and the floor j at this portion was examined. As a result, although the bolster h has a wide surface, the underframe f
9 and 10 shown in FIGS. 9 and 10 to be applied to a floor j made of a through-shaped material over the entire length of the vehicle body.
Is only on both sides and both sides of the bolster h.
The upper surface has a structure in which the lower surface of the floor j is not joined to the lower surface of the floor j almost up to four circumferential positions. This is a special circumstance due to, for example, the fact that a large hollow material made of light metal is used for an underframe or a floor.
【０００６】そこで、車体の異音が発生する上記のよう
な走行状況における台枠ｆまわりの強度を再検討すると
ともに、枕梁ｈの上面をなす枕梁上板ｈ１と床ｊの下面
をなす床下板ｊ１との挙動に注目し観察した。この結
果、強度に問題はないものの、上記のような車体の走行
状況下では、前記枕梁上板ｈ１や床下板ｊ１に変形剛性
の不足による変形が生じていることが分かった。In view of this, the strength of the underframe f around the undercarriage f in the above-described running situation in which the noise of the vehicle body occurs is reviewed, and the pillow upper plate h1 forming the upper surface of the pillow h and the lower surface of the floor j are formed. The behavior with the underfloor plate j1 was observed and observed. As a result, although there was no problem in strength, it was found that under the above-described running condition of the vehicle body, deformation occurred due to insufficient deformation rigidity in the upper bolster h1 and the lower floor j1.
【０００７】つまり、枕梁上板ｈ１や床下板ｊ１はとも
に板状部分であるため、車体に作用する荷重条件によっ
ては、捩れ変形が生じて面外方向に変形することがあ
る。例えば、走行する車体においてブレーキを掛けた際
に、台車ａから枕梁ｈに車体前後方向の力が作用する。
そのとき枕梁ｈは全断面に捩り荷重を受ける。このため
枕梁上板ｈ１は面外変形し僅かなエアギャップを持って
接している床下板ｊ１と摺動するかそれに急にぶつか
り、異音が発生する。別の例として、車体が直線路から
曲線路へ進入する際、線路軌道面は左右方向に水平な直
線路から、左右方向に傾斜した曲線路へ遷移する軌道を
通過しなければならない。このような箇所の軌道面は捩
れ面になっているので、ここを通過する車体は捩れる。
このとき、枕梁ｈも床ｊもどちらも捩り荷重を受けて捩
れる。すると、枕梁上板ｈ１も床下板ｊ１も面外変形す
るので、互いが摺動し、あるいはぶつかり合って異音を
発する。That is, since both the upper beam h1 and the lower floor j1 are plate-like portions, depending on the load conditions acting on the vehicle body, they may be twisted and deformed out of the plane. For example, when a brake is applied to a running vehicle body, a force in the vehicle body front-rear direction acts on the pillow h from the carriage a.
At that time, the bolster h is subjected to a torsional load in all cross sections. For this reason, the upper bolster plate h1 deforms out of plane and slides or suddenly collides with the lower floor plate j1, which is in contact with a slight air gap, and abnormal noise is generated. As another example, when the vehicle enters a curved road from a straight road, the track surface of the track must pass through a track that transitions from a straight horizontal road in the left-right direction to a curved road inclined in the left-right direction. Since the raceway surface at such a location is a twisted surface, the vehicle body passing therethrough is twisted.
At this time, both the bolster h and the floor j are twisted under the torsional load. Then, since both the upper bolster plate h1 and the lower floor plate j1 are out-of-plane deformation, they slide or collide with each other, generating abnormal noise.
【０００８】これに対処するため本発明者等は、通しの
形材による側梁ｇを含め一体に結合した床ｊの段階にお
いて、枕梁ｈの上面の両側の端部域を残す中央部域に対
応する部分を先に切り抜いて四角形の窓ｍを形成し、こ
の窓ｍ内に支持枠ｑを嵌め合わせて窓ｍの表裏の口縁と
の間に溶接接合部ｋを設けて結合しておく。支持枠ｑは
ボックス材ｎ１を配して連結した矩形のフレームｎ内に
一方向に平行な中骨ｏを配してフレームｎとの突き当て
境界部に溶接接合部ｋを設けて結合したものである。こ
のように構成した床ｊに枕梁ｈを当てがい結合するの
に、枕梁ｈの両側辺と両端側辺と床との間に加え、枕梁
ｈの上面との間に溶接接合部ｋを施し、前記フレームｎ
および中骨ｏと枕梁ｈの上面との突き当て境界部に溶接
接合部ｋを施して結合し、最後に前記窓ｍを蓋する補助
床板ｐを支持枠ｑの上に載せて周囲を床ｊの窓ｍの口縁
との間に溶接接合部ｋを施して結合することを試みた。
これによれば、枕梁ｈの上面と床ｊの下面とが広い範囲
で接合されないことに起因した互いが摺動したりぶつか
り合うことが防止され、異音が発生しないようにするこ
とができ、本発明者等の考えた異音の原因に間違いない
ことが確認された。In order to cope with this, the present inventors have found that in the stage of the floor j which is integrally connected including the side beams g of the through-shaped members, the central region where both end regions on both sides of the upper surface of the bolster h are left. Is cut out first to form a rectangular window m, a support frame q is fitted into the window m, and a welded joint k is provided between the front and back edges of the window m to be joined. deep. The support frame q is a rectangular frame n connected with a box material n1 and connected with a central bone o parallel to one direction and provided with a welded joint k at the abutting boundary with the frame n and joined. It is. In order to apply and connect the bolster h to the floor j configured as described above, a welded joint k is provided between both sides and both side edges of the bolster h and the upper surface of the bolster h. And the frame n
A welded joint k is applied to the abutting boundary between the inner bone o and the upper surface of the bolster h to join the joints. Finally, an auxiliary floor plate p for covering the window m is placed on the support frame q and the periphery is floored. An attempt was made to apply and join a welded joint k between the edge of the window m of j.
According to this, it is possible to prevent the upper surface of the bolster h and the lower surface of the floor j from sliding or colliding with each other due to the fact that the upper surface of the bolster h is not joined in a wide range, so that no abnormal noise is generated. It was confirmed that the cause of the abnormal noise considered by the present inventors was no doubt.
【０００９】しかし、このような改良構造では、折角の
通し材よりなる床ｊが窓ｍの部分で通し材が分断されて
しまい剛性が低下するし、部材数、作業数が徒に多くコ
ストが大幅に上昇するので、実用に耐えない。[0009] However, in such an improved structure, the floor j made of a bent through member is cut off at the portion of the window m to reduce the rigidity, and the number of members and the number of operations are unnecessarily large, and the cost is increased. Because it rises significantly, it is not practical.
【００１０】本発明の目的は、簡単な改良構造によって
異音の発生を防止できる鉄道車両の台枠における枕梁・
床結合構造を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a railway vehicle underframe which can prevent generation of abnormal noise with a simple improved structure.
It is to provide a floor connection structure.
【００１１】[0011]
【課題を解決するための手段】上記のような目的を達成
するために、本発明の鉄道車両の台枠における枕梁・床
結合構造は、各種台車に支持される単体よりなる枕梁の
上面をなす枕梁上板と、この枕梁上板の上に載置した形
材よりなる床の下面をなす床下板とを、枕梁上板の両側
辺および両端側辺と床下板の下面との間に施した溶接接
合部により結合した鉄道車両の台枠における枕梁・床結
合構造において、枕梁上板の上面における両側辺部分を
除く幅方向中央部分と床との間に隙間を形成したことを
特徴とするものである。In order to achieve the above-mentioned object, the present invention provides a railroad vehicle underframe joint structure for a railroad vehicle underframe, which is provided on a top surface of a single body bolster supported by various trolleys. The upper and lower pillows, and the lower floor of the lower surface of the floor made of the shaped material placed on the upper pillow, A gap is formed between the floor and the center part in the width direction excluding both side parts on the upper surface of the upper part of the pillow in the underbody structure of the underbody of the railroad car joined by the welded joint between It is characterized by having done.
【００１２】このような構成では、単体よりなる枕梁上
板の上面と床下板の下面との、枕梁が床と結合される両
側辺部分を除く幅方向中央部分に設けられた隙間は、枕
梁の全断面に捩れが生じて枕梁上板および床上板が板状
であることにより面外変形することがあっても、この面
外変形によって枕梁上板と床下板とが摺動し合い、ぶつ
かり合うのを防止するので、異音が発生しなくなる。[0012] In such a configuration, the gap provided between the upper surface of the upper single-piece bolster plate and the lower surface of the lower-floor plate at the center in the width direction except for both side portions where the bolster is connected to the floor, Even if the entire cross-section of the bolster is twisted and the upper and lower bolsters are out of plane due to the plate shape, the upper and lower bolsters slide due to the out-of-plane deformation. It prevents collisions and collisions, so that no noise is generated.
【００１３】隙間は、枕梁上板の上面に形成した凹部に
よって形成することができるし、枕梁と床との間に挟ん
だスペーサによって形成することもできる。いずれにし
ても台枠の構造や組み立てが特に複雑になることはな
く、コスト上昇の原因にはならない。特に、凹部の場合
は枕梁の形材を形成する押出し形成時における断面形状
の選択によって対応できる利点がある。凹部をどのよう
に形成する場合でも枕梁が強度上、剛性上必要とされる
高さ寸法以上に位置するように形成されていると、凹部
があることにより強度上や剛性上で問題になることはな
い。また、スペーサによると単純な板材を挟み込めばよ
いし、枕梁と床との溶接接合によって同時に結合できる
利点がある。The gap can be formed by a concave portion formed on the upper surface of the upper body of the bolster, or can be formed by a spacer sandwiched between the bolster and the floor. In any case, the structure and assembly of the underframe do not become particularly complicated, and do not cause an increase in cost. Particularly, in the case of a concave portion, there is an advantage that it can be dealt with by selecting a cross-sectional shape at the time of extrusion forming for forming a shape of the bolster. Regardless of how the recess is formed, if the bolster is formed so as to be located at a height or more required for strength and rigidity, the presence of the recess causes problems in strength and rigidity. Never. Further, according to the spacer, there is an advantage that a simple plate material may be sandwiched, and the joint can be simultaneously formed by welding and joining the bolster and the floor.
【００１４】上記のような構成に加え、さらに、枕梁の
上板の中心部に、枕梁の下面をなす枕梁下板の中心部に
ボルスタレス台車における牽引部の心皿中心ピンと嵌り
合うように設けられた孔と対向する、今１つの孔を設
け、または、枕梁上板における中心部に、枕梁の下面を
なす枕梁下板の中心部にボルスタレス台車における牽引
部の心皿中心ピンと嵌り合うように設けられた孔と対向
する、今１つの孔を、枕梁の両端部における空気ばね給
気座取付け孔と対向する、今１つの孔を、それぞれ設
け、枕梁と床との間で前記今１つの孔を上方から塞ぎ前
記隙間を今１つの孔の近傍で埋める金属板を設け、この
金属板はその周辺部と床の下面との間に施した溶接接合
部により床に結合され、その下面と前記今１つの孔の口
縁との間に施した溶接接合部により枕梁に結合されてい
るようにすることができる。In addition to the above structure, the center of the upper plate of the bolster is fitted to the center of the lower plate of the bolster, which forms the lower surface of the bolster, with the center pin of the pulling portion of the bolsterless bogie. One hole is provided opposite to the hole provided in the bolsterless trolley, or in the center of the upper bolster, at the center of the lower bolster plate forming the lower surface of the bolster, at the center of the center of the traction part of the bolsterless bogie. Another hole is provided opposite the hole provided to fit the pin, and another hole is provided respectively opposite the air spring air supply seat mounting holes at both ends of the bolster, and the bolster and the floor are provided. A metal plate is provided between the peripheral portion and the lower surface of the floor, the metal plate closing the one hole from above and filling the gap near the one hole. And a weld made between its lower surface and the rim of said another hole It can be made to be coupled to the bolster by the engaging portion.
【００１５】このような構成によれば、さらに、枕梁上
板と床下板との間にできる広い範囲の隙間の、ボルスタ
レス台車の心皿中心ピンと嵌り合う孔と対向する今１つ
の孔の部分か、この今１つの孔の部分および枕梁の両端
部の空気ばね給気座取付け孔部分か、において、枕梁が
台枠の牽引部からの前後力を受ける部分または、この部
分および空気ばねにより支持される部分、に対応する枕
梁上板の中央部が床下板と金属板を介し結合されるの
で、枕梁上板および床下板の捩り変形を抑制し、隙間が
できることによる剛性の低下を補償することができる。
しかも、金属板は枕梁に取付ける前の床材における床下
板の下面との間に溶接接合部を施しておき、床材を枕梁
に載せたときに枕梁下板にある牽引部の心皿中心ピンと
嵌り合う孔を通じて枕梁上板に設けた孔の口縁との間に
溶接接合部を施せばよく、構造や組立てが特に複雑にな
るようなことがなくコスト上昇の原因にはならない。[0015] According to the above configuration, furthermore, a portion of the one hole opposite to the hole that fits with the center pin of the core plate of the bolsterless trolley, in a wide range of gap formed between the upper bolster plate and the lower floor plate. The part of the hole which is to be subjected to the fore-and-aft force from the traction part of the underframe, or the part and the air spring The central part of the upper bolster corresponding to the portion supported by the fin is connected to the lower floor and the metal plate via the metal plate, so that the torsional deformation of the upper bolster and the lower floor is suppressed, and the rigidity is reduced due to a gap. Can be compensated for.
In addition, the metal plate is provided with a welded joint between the lower surface of the underfloor plate of the floor material before being attached to the bolster and the center of the traction portion on the pillow lower plate when the floor material is placed on the bolster. It is sufficient to provide a welded joint between the hole that fits the center pin of the dish and the edge of the hole provided in the upper part of the bolster, so that the structure and assembly are not particularly complicated and do not cause an increase in cost .
【００１６】枕梁、床が前記異音を発しやすい軽金属製
の形材、中でも中空形材よりなる場合に本発明は特に有
効である。The present invention is particularly effective when the pillows and the floor are made of a light metal shape, which is apt to emit the above-mentioned noise, in particular, a hollow shape.
【００１７】本発明のそれ以上の目的および特徴は、以
下の詳細な説明および図面の記載によって明らかにな
る。本発明の各特徴は、それ単独で、あるいは可能な限
り種々な組み合わせで複合して用いることができる。Further objects and features of the present invention will become apparent from the following detailed description and drawings. Each feature of the present invention can be used alone or in combination as variously as possible.
【００１８】[0018]
【発明の実施の形態】以下、本発明の実施の形態に係る
鉄道車両の台枠における枕梁・床結合構造につき、図１
〜図５を参照しながら幾つかの例とともに説明し、本発
明の理解に供する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a joint structure of a bolster and a floor in an underframe of a railway vehicle according to an embodiment of the present invention will be described with reference to FIG.
5 together with some examples for an understanding of the invention.
【００１９】本実施の形態は図１〜図５に示すようなア
ルミニウムなどの軽金属製の中空の大型形材１を用いた
枕梁２を持ち、図２に示すような牽引部６を持ったボル
スタレス台車７によって支持され前後力が伝達される鉄
道車両の台枠３において、この台枠３が支持する同じく
アルミニウムなどの軽金属製の中空の大型形材４を用い
た床５と、前記枕梁２とを結合する場合の一例である。
しかし、本発明はこれに限られることはなく、各種の台
車で支持される台枠において、各種の形材などを用いて
単体に形成される枕梁２と床５を構成するのに、枕梁２
における枕梁上板２ａの両側辺２ａ１と両端側辺２ａ２
とに床５に溶接接合部が施され、他の部分には溶接接合
部が施されない構造を持った枕梁・床結合構造一般に適
用して有効である。This embodiment has a bolster 2 using a hollow large-sized member 1 made of a light metal such as aluminum as shown in FIGS. 1 to 5 and a traction portion 6 as shown in FIG. The underframe 3 of a railway vehicle supported by the bolsterless carriage 7 and transmitted in the longitudinal direction, the floor 5 using a large hollow member 4 of light metal such as aluminum supported by the underframe 3 and the bolster This is an example of a case where the device No. 2 is combined.
However, the present invention is not limited to this, and the pillow 2 and the floor 5, which are formed as a single body using various shapes and the like on the underframe supported by various trolleys, are not pillowed. Beam 2
Side 2a1 and both sides 2a2 of the upper bolster plate 2a
The present invention is effective when applied to a beam / floor joint structure generally having a structure in which a welded joint is formed on the floor 5 and no welded joint is formed on other portions.
【００２０】台枠３は既述したようにボルスタレス台車
や各種の台車の支持を受けるために、側梁１１、１１間
に左右に渡された比較的大きな枕梁２を有している。枕
梁２は下面に牽引部６の心皿１２がボルト１３によって
締結されるとともに、心皿１２の中央に突出している心
皿中心ピン１４が図２に示す枕梁２における枕梁下板２
ｂに形成された孔１５に嵌め合わされて、ボルスタレス
台車７側からの前後力を受けるとともに、枕梁２の下面
の両端に図示しない空気ばねが孔１７を利用した連結に
より主として上下方向に弾性的に支持され、牽引部６に
よって前後力が伝達され車体が走行するときの上下方向
力および前後力が伝達される。As described above, the underframe 3 has the relatively large bolster beam 2 which is provided between the side beams 11 and 11 so as to be supported by the bolsterless trolley and various trolleys. On the underside of the bolster 2, the center plate 12 of the traction portion 6 is fastened by bolts 13 and the center pin 14 projecting from the center of the center plate 12 is connected to the lower plate 2 of the bolster 2 shown in FIG.
b, receiving longitudinal force from the bolsterless carriage 7 side, and air springs (not shown) at both ends of the lower surface of the bolster 2 mainly elastically in the vertical direction by coupling using the holes 17. , The longitudinal force is transmitted by the traction unit 6, and the vertical force and the longitudinal force when the vehicle travels are transmitted.
【００２１】しかし、台枠３における枕梁２の枕梁上板
２ａと床５の床下板５ａとが、枕梁上板２ａの両側辺２
ａ１と両端側辺２ａ２と床５の床下板５ａとの溶接接合
部１６でしか結合されない構造では、既述したように車
体の走行中、枕梁上板２ａと床下板５ａとの間で異音が
発生する。However, the upper bolster plate 2a of the bolster 2 and the lower floor plate 5a of the floor 5 in the underframe 3 are connected to both sides 2 of the upper bolster plate 2a.
In a structure in which a1 and both side edges 2a2 and the underfloor plate 5a of the floor 5 are joined only at the welded joint 16, as described above, the difference between the upper bolster plate 2a and the underfloor plate 5a during traveling of the vehicle body is already described. A sound is generated.
【００２２】そこで、本実施の形態では、図１、図２の
例と、図３の例とで示すように、枕梁２の上面をなす枕
梁上板２ａと、床５の下面をなす床下板５ａとを、枕梁
上板２ａの側面と床下板５ａの下面との間に溶接接合部
１６を施した枕梁・床結合構造において、枕梁上板２ａ
の上面における両側辺２ａ１部分を除く幅方向中央部分
２ａ３と床下板５ａとの間に隙間２１を形成する。Therefore, in the present embodiment, as shown in the examples of FIGS. 1 and 2 and the example of FIG. 3, a pillow upper plate 2a forming the upper surface of the pillow 2 and a lower surface of the floor 5 are formed. In a pillow / floor joint structure in which a welded joint 16 is provided between the underfloor plate 5a and the side surface of the bolster upper plate 2a and the lower surface of the underfloor plate 5a, the bolster upper plate 2a
A gap 21 is formed between the center part 2a3 in the width direction excluding the two side parts 2a1 on the upper surface of the lower surface and the floor plate 5a.
【００２３】このように、枕梁上板２ａの上面と床下板
５ａの下面との、枕梁２が床５と結合される両側辺２ａ
１部を除く幅方向中央部分２ａ３に設けられ枕梁２の長
手方向に通縦した隙間２１は、枕梁２の全断面に捩れが
生じて枕梁上板２ａおよび床下板５ａが板状であること
により面外変形することがあっても、この面外変形によ
って枕梁上板２ａと床下板５ａとが摺動し合い、ぶつか
り合うのを防止するので、異音が発生しなくなる。従っ
て、隙間２１はこのような枕梁上板２ａと床下板５ａと
の面外変形による摺動やぶつかり合いを防止できればよ
く、双方の面外変形の互いに近づく側の最大値の和より
も大きければよい。これは車体とボルスタレス台車７と
の関係、枕梁、床の関係によって異なり、従って、車種
によって異なる。しかし、本発明者らの経験では、軽金
属製の中空形材を用いた枕梁２および床５の関係におい
て、凡そ５ｍｍ程度あれば十分である。しかし、車種や
設計の変更などで条件が異なる場合など、隙間２１の大
きさはどのようにも設定することができる。As described above, both sides 2a of the upper surface of the upper bolster plate 2a and the lower surface of the lower floor plate 5a where the bolster 2 is connected to the floor 5 are provided.
The gap 21 provided in the center portion 2a3 in the width direction except for one part and extending in the longitudinal direction of the bolster 2 is twisted in the entire cross section of the bolster 2, so that the upper bolster plate 2a and the lower floor plate 5a have a plate shape. Even if there is an out-of-plane deformation due to the existence, the out-of-plane deformation prevents the upper bolster plate 2a and the under floor plate 5a from sliding and colliding with each other, so that no noise is generated. Therefore, the gap 21 only needs to be able to prevent such sliding and collision due to the out-of-plane deformation of the upper bolster plate 2a and the lower floor plate 5a, and is larger than the sum of the maximum values of both out-of-plane deformations on the approaching side. I just need. This depends on the relationship between the vehicle body and the bolsterless carriage 7, the relationship between the bolsters, and the floor, and therefore differs depending on the vehicle type. However, according to the experience of the present inventors, about 5 mm is sufficient for the relationship between the bolster 2 and the floor 5 using a hollow section made of light metal. However, the size of the gap 21 can be set in any manner, for example, when conditions are different due to changes in the type of vehicle or design.
【００２４】隙間２１は、上記例に示すように枕梁２に
おける枕梁上板２ａの上面に形成した凹部２２によって
形成することができる。しかし、図示しない枕梁２と床
５との間に挟んだスペーサによって形成することもでき
る。いずれにしても台枠３の構造や組み立てが特に複雑
になることはなく、コスト上昇の原因にはならない。特
に、凹部２２の場合は枕梁２の形材１を形成する押出し
形成時の断面形状の選択によって対応できる利点があ
る。凹部２２をどのように形成する場合でも枕梁２が強
度上、剛性上必要とされる高さ寸法、例えば標準仕様で
１４０ｍｍ以上、高速車仕様で１５０ｍｍの高さ位置と
なる図１、図３に示すＨ以上に位置するように形成す
る。これによると、凹部２２があることにより強度上や
剛性上で問題になることはない。また、スペーサによる
と単純な板材を挟み込めばよいし、枕梁と床との溶接接
合によって同時に結合される利点がある。もっとも、凹
部２２は異音防止の原理からは必ずしも枕梁２の側に設
けなくてもよく、床５の下面に設けられてもよい。The gap 21 can be formed by a concave portion 22 formed on the upper surface of the bolster upper plate 2a of the bolster 2, as shown in the above example. However, it can also be formed by a spacer sandwiched between the bolster 2 and the floor 5 (not shown). In any case, the structure and assembly of the underframe 3 are not particularly complicated, and do not cause an increase in cost. In particular, in the case of the concave portion 22, there is an advantage that it can be dealt with by selecting a cross-sectional shape at the time of extrusion forming the shape member 1 of the bolster 2. Regardless of how the concave portion 22 is formed, the height of the bolster 2 is required in terms of strength and rigidity, for example, 140 mm or more in a standard specification and 150 mm in a high-speed vehicle specification. Is formed so as to be located above H shown in FIG. According to this, there is no problem in strength and rigidity due to the presence of the concave portion 22. In addition, according to the spacer, a simple plate material may be sandwiched, and there is an advantage that the spacer is welded to the floor at the same time by welding. However, the concave portion 22 may not necessarily be provided on the side of the bolster 2 from the principle of preventing abnormal noise, and may be provided on the lower surface of the floor 5.
【００２５】図１、図２の例では、さらに、枕梁２の枕
梁上板２ａの中心部に、枕梁２の下面をなす枕梁下板２
ｂの中心部にボルスタレス台車７における牽引部６の心
皿中心ピン１４と嵌り合うように設けられた孔１５と対
向する、今１つの孔２３を設け、枕梁２の中心部と床５
との間で前記今１つの孔２３を上方から塞ぎ前記隙間２
１を部分的に埋める金属板２４を設けている。この金属
板２４はその周辺部と床５の下面との間に施した溶接接
合部２５により床５に結合され、その下面と前記今１つ
の孔２３の内周面との間に施した溶接接合部２６により
枕梁２に結合した構造としている。In the example shown in FIGS. 1 and 2, the lower part of the bolster 2 which forms the lower surface of the bolster 2 is further provided at the center of the upper part 2a of the bolster 2.
b, a hole 23 is provided in the bolsterless bogie 7 opposite to the hole 15 provided so as to be fitted with the center pin 14 of the center plate 14 of the traction part 6 of the bolsterless carriage 7.
Between the second hole 23 and the gap 2
1 is provided with a metal plate 24 that partially fills 1. The metal plate 24 is joined to the floor 5 by a welded joint 25 provided between the periphery thereof and the lower surface of the floor 5, and the metal plate 24 is welded between the lower surface and the inner peripheral surface of the hole 23. It is structured to be joined to the bolster 2 by the joint 26.
【００２６】これにより、枕梁上板２ａと床下板５ａと
の間にできる広い範囲の隙間２１において、枕梁２が台
枠３の牽引部６からの前後力を受ける部分に対応する枕
梁上板２ａの中心部が床下板５ａと金属板２４を介し結
合されるので、枕梁上板２ａおよび床下板５ａの捩り変
形を抑制し、隙間２１ができることによる剛性の低下を
補償することができる。しかも、金属板２４は枕梁２に
取付ける前の形材４における床下板５ａの下面と周辺部
との間に溶接接合部２５を施しておき、床５の形材４を
枕梁２に載せたときに枕梁下板２ｂにある牽引部６の心
皿中心ピン１４と嵌り合う孔１５を通じて枕梁上板２ａ
に設けた孔２３の口縁との間に溶接接合部２６を施せば
よく、構造や組立てが特に複雑になるようなことがなく
コスト上昇の原因にはならない。金属板２４は溶接構造
上枕梁２、床５と同じ材料、従って本実施の形態ではア
ルミニウム製がよく、例えば凹部２２の幅が５６０ｍｍ
であるのに対し金属板２４の凹部２２の幅方向寸法が１
８０ｍｍ程度とされ、枕梁２の長手方向も同じ寸法にし
ても良いし、図示するように短くしてもよい。また、場
合によっては長くしてもよい。Thus, in a wide gap 21 formed between the upper bolster plate 2a and the lower floor plate 5a, the bolster 2 corresponding to the portion where the bolster 2 receives the longitudinal force from the traction portion 6 of the underframe 3 Since the center of the upper plate 2a is connected to the lower floor plate 5a via the metal plate 24, it is possible to suppress the torsional deformation of the upper bolster plate 2a and the lower floor plate 5a, and to compensate for the reduction in rigidity due to the gap 21 being formed. it can. Moreover, the metal plate 24 is provided with a welded joint 25 between the lower surface of the underfloor plate 5a and the peripheral portion of the profile 4 before being attached to the beam 2, and the profile 4 of the floor 5 is placed on the beam 2. The upper bolster plate 2a passes through the hole 15 which fits with the center pin 14 of the center plate 14 of the traction portion 6 in the lower bolster plate 2b when
The welded joint 26 may be provided between the hole 23 and the edge of the hole 23, and the structure and assembly are not particularly complicated, and do not cause an increase in cost. The metal plate 24 is preferably made of the same material as that of the bolster 2 and the floor 5 in terms of the welding structure, and is therefore preferably made of aluminum in the present embodiment. For example, the width of the concave portion 22 is 560 mm.
In contrast, the width dimension of the concave portion 22 of the metal plate 24 is 1
It may be about 80 mm, and the longitudinal direction of the bolster 2 may be the same size, or may be shortened as shown. In some cases, the length may be increased.
【００２７】金属板２４は、図４における枕梁２の左側
端部に示すように、空気ばねとの連結用の孔１７とそれ
に対向して枕梁上板２ａに設けた孔２３とを利用して、
枕梁２の空気ばねが連結される両端部にも設けておくこ
とができる。As shown in the left end of the bolster 2 in FIG. 4, the metal plate 24 uses a hole 17 for connection with an air spring and a hole 23 provided in the upper bolster plate 2a opposed thereto. do it,
It can also be provided at both ends of the bolster 2 where the air springs are connected.
【００２８】なお、本実施の形態の枕梁２は図１、図２
に示すように、同一断面形状をしたアルミニウム製の中
空押出し形材を２つ左右対称に付き合せて枕梁上板２ａ
どうしと枕梁下板２ｂどうしに施した溶接接合部３１に
より一体に結合したものを採用しており、３つの中空部
３２が並んだその外側に枕梁上板２ａおよび枕梁上板２
ａが張りだしフランジ状の両側辺２ａ１を形成してい
る。そして凹部２２はこのフランジ状の両側辺２ａ１の
間の領域に形成され、実質的に強度上問題のない設計に
なっている。心皿中心ピン１４に対応する今１つの孔２
３部分の金属板２４は孔２３の直径に近い大きさを持っ
た四角形状としてあり、床５の下面との間で結合されて
いる部分間の距離が大きくなるのを極力抑えて牽引部６
からの前後力を受けて負荷が掛かり易い部分で二次的に
異音が発生するようなことが万一にも起きないようにし
てある。空気ばねに対応する今１つの孔２３部分の金属
板２４は孔２３の直径に対し前記の心皿中心ピン１４に
対応する部分のそれよりも大きくしてある。なお、枕梁
２をどのような形材でどのように形成してもよいが、強
度上一体構造であるのが好ましく、組み立ての作業性か
ら台枠３を組み立てる段階で既に一体に形成されている
のが好ましい。The bolster 2 of the present embodiment is shown in FIGS.
As shown in the figure, two aluminum hollow extruded profiles having the same cross-sectional shape are symmetrically attached to each other, and a pillow upper plate 2a
The lower and upper bolsters 2b are joined together by a welded joint 31 provided between the upper and lower bolsters 2b.
a is formed to form flanged side edges 2a1. The concave portion 22 is formed in a region between the flange-shaped side edges 2a1, and is designed to have substantially no problem in strength. One hole 2 corresponding to the center pin 14
The three portions of the metal plate 24 are formed in a rectangular shape having a size close to the diameter of the hole 23, and the distance between the portions connected to the lower surface of the floor 5 is suppressed as much as possible to minimize the traction portion 6.
In this way, it is possible to prevent the occurrence of secondary noise at a portion where a load is likely to be applied due to the front-rear force. The metal plate 24 in the portion of the hole 23 corresponding to the air spring is made larger in diameter of the hole 23 than that in the portion corresponding to the center pin 14 described above. The bolster 2 may be formed of any shape and in any manner, but it is preferable that the bolster 2 has an integral structure in terms of strength, and is formed integrally at the stage of assembling the underframe 3 from the viewpoint of workability of assembly. Is preferred.
【００２９】また、床５の形材４は図５に示すように５
つのアルミニウム製のトラス断面を持った中空形材を左
右で対象になるように形成してあり、それぞれ車体全長
で通しで設けられ相互間と側梁１１との間が溶接接合部
２９にて一体に結合されている。しかし、この床５の形
材４もどのような断面形状のものを用いてもよいが、前
記のように通しで設けると部品点数が少なくなるし、車
体の剛性が向上する。Further, as shown in FIG.
A hollow profile having two aluminum truss sections is formed so as to be symmetrical on the left and right sides. Is joined to. However, the section 4 of the floor 5 may have any cross-sectional shape. However, if the section 4 is provided as described above, the number of parts is reduced, and the rigidity of the vehicle body is improved.
【００３０】[0030]
【発明の効果】本発明によれば、上記の説明で明らかな
ように、枕梁上板の上面と床下板の下面との、枕梁が床
と結合される両側辺部を除く部分に設けた隙間によっ
て、枕梁およぶ床に捩れが生じて枕梁上板および床下板
が板状であることにより面外変形することがあっても、
この面外変形によって枕梁上板と床下板とが摺動し合
い、ぶつかり合うのを防止して、異音が発生するような
ことを防止することができる。According to the present invention, as is apparent from the above description, the upper and lower surfaces of the upper bolster and the lower floor are provided at portions except for both side portions where the bolster is connected to the floor. Due to the gap, the torso and the floor may be twisted and the upper and lower bolsters may be out of plane due to the plate shape,
This out-of-plane deformation prevents the upper bolster plate and the lower floor plate from sliding and colliding with each other, thereby preventing generation of abnormal noise.
【図１】本発明の実施の形態に係る鉄道車両の台枠にお
ける枕梁と床との結合構造の１つの例を示す主要部分の
断面図である。FIG. 1 is a cross-sectional view of a main part showing one example of a connection structure between a bolster and a floor in an underframe of a railway vehicle according to an embodiment of the present invention.
【図２】図１の結合構造部分における枕梁とボルスタレ
ス台車の牽引部との結合構造を示す断面図である。FIG. 2 is a cross-sectional view showing a connection structure between a bolster beam and a traction portion of a bolsterless bogie in a connection structure portion of FIG. 1;
【図３】本発明の実施の形態に係る鉄道車両の台枠にお
ける枕梁と床との結合構造の別の例を示す主要部分の断
面図である。FIG. 3 is a cross-sectional view of a main part showing another example of a connection structure between a bolster and a floor in an underframe of a railway vehicle according to an embodiment of the present invention.
【図４】図１、図２の例の枕梁・床結合構造を採用した
台枠における枕梁と床と凹部と金属板との関係を示し、
枕梁の長手方向半部を断面した平面図である。FIG. 4 shows a relationship between a pillow, a floor, a recess, and a metal plate in an underframe adopting the pillow / floor coupling structure of the example of FIGS. 1 and 2,
It is the top view which cross-sectioned the longitudinal direction half part of the bolster.
【図５】図４の台枠の横断面図である。FIG. 5 is a cross-sectional view of the underframe of FIG. 4;
【図６】先の改良例を示す台枠および床の要部の平面図
である。FIG. 6 is a plan view of an underframe and a main part of a floor showing the above-mentioned improvement.
【図７】図６の横断面図である。FIG. 7 is a cross-sectional view of FIG.
【図８】図７の枕梁を横断する方向で見た断面図であ
る。FIG. 8 is a cross-sectional view as seen in a direction crossing the bolster of FIG. 7;
【図９】従来の鉄道車両の台枠における枕梁・床結合構
造を示す要部の断面図である。FIG. 9 is a cross-sectional view of a main part showing a bolster / floor coupling structure in an underframe of a conventional railway vehicle.
【図１０】図９の枕梁・床結合構造を採用している台枠
とボルスタレス台車との結合構造を示す断面図である。FIG. 10 is a cross-sectional view showing a connection structure between an underframe and a bolsterless carriage adopting the bolster / floor connection structure of FIG. 9;
【図１１】図１０の要部の平面図である。FIG. 11 is a plan view of a main part of FIG. 10;
１、４ 形材 ２ 枕梁 ２ａ 枕梁上板 ２ｂ 枕梁下板 ２ａ１ 両側辺 ２ａ２ 両端側辺 ２ａ３ 幅方向中央部分 ３ 台枠 ５ 床 ５ａ 床下板 ６ 牽引部 ７ ボルスタレス台車 １２ 心皿 １４ 心皿中心ピン １５、２３、２７ 孔 １６、２５、２６ 溶接接合部 ２１ 隙間 ２２ 凹部 ２４ 金属板 1, 4 shaped material 2 Pillow 2a Pillow upper plate 2b Pillow lower plate 2a1 Both sides 2a2 Both ends side 2a3 Width central part 3 Frame 5 Floor 5a Floor lower plate 6 Traction unit 7 Bolsterless trolley 12 Core plate 14 Core plate Center pin 15,23,27 hole 16,25,26 welded joint 21 gap 22 recess 24 metal plate
Claims (6)
面をなす枕梁上板と、この枕梁上板の上に載置した形材
よりなる床の下面をなす床下板とを、枕梁上板の両側辺
および両端側辺と床下板の下面との間に施した溶接接合
部により結合した鉄道車両の台枠における枕梁・床結合
構造において、 枕梁上板の上面における両側辺部分を除く幅方向中央部
分と床との間に隙間を形成したことを特徴とする鉄道車
両の台枠における枕梁・床結合構造。A pillow upper plate forming an upper surface of a single-piece bolster supported by a cart, and a lower floor plate forming a lower surface of a floor made of a profile placed on the pillow upper plate, In a pillow / floor joint structure for a railcar underframe joined by welded joints provided between both side edges and both side edges of the bolster upper plate and the lower surface of the underfloor plate, both sides on the upper surface of the pillow upper plate A beam / floor joint structure for an underframe of a railway vehicle, wherein a gap is formed between the floor and a center portion in a width direction excluding a side portion.
枕梁下板の中心部にボルスタレス台車における牽引部の
心皿中心ピンと嵌り合うように設けられた孔と対向す
る、今１つの孔を設け、または、枕梁上板における中心
部に、枕梁の下面をなす枕梁下板の中心部にボルスタレ
ス台車における牽引部の心皿中心ピンと嵌り合うように
設けられた孔と対向する、今１つの孔を、枕梁の両端部
における空気ばね給気座取付け孔と対向する、今１つの
孔を、それぞれ設け、枕梁と床との間で前記今１つの孔
を上方から塞ぎ前記隙間を今１つの孔の近傍で埋める金
属板を設け、この金属板はその周辺部と床の下面との間
に施した溶接接合部により床に結合され、その下面と前
記今１つの孔の口縁との間に施した溶接接合部により枕
梁に結合されている請求項１に記載の鉄道車両の台枠に
おける枕梁・床結合構造。2. A center portion of the upper bolster plate facing a hole provided at a center portion of the lower bolster plate forming the lower surface of the bolster so as to fit with a center pin of a pulling portion of the bolsterless carriage. Another hole is provided, or a hole is provided at the center of the upper plate of the bolster, at the center of the lower plate of the bolster which forms the lower surface of the bolster, so as to fit with the center pin of the pulling portion of the bolsterless carriage. And another hole is provided opposite to the air spring air supply seat mounting holes at both ends of the bolster, respectively, and the another hole is provided between the bolster and the floor. A metal plate is provided that closes from above and fills the gap in the vicinity of the one hole, the metal plate being joined to the floor by a welded joint between its periphery and the lower surface of the floor. Contraction connected to the bolster by a weld joint between the lip of one hole The pillow / floor connection structure in the underframe of the railway vehicle according to claim 1.
よって形成している請求項１、２のいずれか１項に記載
の鉄道車両の台枠における枕梁・床結合構造。3. The pillow / floor joint structure in an underframe of a railway vehicle according to claim 1, wherein the gap is formed by a concave portion formed on the upper surface of the bolster upper plate.
るように形成されている請求項３に記載の鉄道車両の台
枠における枕梁・床結合構造。4. The tie-floor / floor joint structure for an underframe of a railway vehicle according to claim 3, wherein the recess is formed so as to be located at a height equal to or greater than a required height of the pillow.
によって形成している請求項１、２のいずれか１項に記
載の鉄道車両の台枠における枕梁・床結合構造。5. The structure of claim 1, wherein the gap is formed by a spacer interposed between the bolster and the floor.
項１〜５のいずれか１項に記載の鉄道車両の台枠におけ
る枕梁・床結合構造。6. A pillow beam / floor joint structure for an underframe of a railway vehicle according to any one of claims 1 to 5, wherein the pillow beam and the floor are made of a light metal profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000338799A JP3868203B2 (en) | 2000-11-07 | 2000-11-07 | Pillow beam / floor connection structure in railcar frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000338799A JP3868203B2 (en) | 2000-11-07 | 2000-11-07 | Pillow beam / floor connection structure in railcar frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002145060A true JP2002145060A (en) | 2002-05-22 |
| JP3868203B2 JP3868203B2 (en) | 2007-01-17 |
Family
ID=18813955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000338799A Expired - Fee Related JP3868203B2 (en) | 2000-11-07 | 2000-11-07 | Pillow beam / floor connection structure in railcar frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3868203B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102556099A (en) * | 2010-12-10 | 2012-07-11 | 南车青岛四方机车车辆股份有限公司 | Light-weight bolster for urban rail trains |
| WO2012172925A1 (en) * | 2011-06-14 | 2012-12-20 | 株式会社 日立製作所 | Vehicle body structure adapted for use in railroad vehicle and provided with wire/pipe module, and method for manufacturing same |
| WO2013150736A1 (en) * | 2012-04-02 | 2013-10-10 | 川崎重工業株式会社 | Railroad vehicle |
| WO2014045363A1 (en) * | 2012-09-20 | 2014-03-27 | 株式会社 日立製作所 | Vehicle body structure |
| JP2017065591A (en) * | 2015-10-01 | 2017-04-06 | 川崎重工業株式会社 | Railway vehicle underframe structure |
| WO2017103865A1 (en) * | 2015-12-18 | 2017-06-22 | Universidad Eafit | Cross-member for rail passenger vehicles, method for the assembly thereof, and method for arranging same in the body of a rail vehicle |
| JP2017144911A (en) * | 2016-02-18 | 2017-08-24 | 日本車輌製造株式会社 | Railway vehicle body structure |
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| GB2567931A (en) * | 2012-09-20 | 2019-05-01 | Hitachi Ltd | Vehicle body structure |
| CN112249070A (en) * | 2020-09-24 | 2021-01-22 | 中车南京浦镇车辆有限公司 | Connecting structure of railway vehicle sleeper beam and floor |
| CN113276897A (en) * | 2021-06-22 | 2021-08-20 | 中车株洲电力机车有限公司 | Subway vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556099A (en) * | 2010-12-10 | 2012-07-11 | 南车青岛四方机车车辆股份有限公司 | Light-weight bolster for urban rail trains |
| WO2012172925A1 (en) * | 2011-06-14 | 2012-12-20 | 株式会社 日立製作所 | Vehicle body structure adapted for use in railroad vehicle and provided with wire/pipe module, and method for manufacturing same |
| JP2013001198A (en) * | 2011-06-14 | 2013-01-07 | Hitachi Ltd | Vehicle body structure of railroad vehicle equipped with wiring/piping module and manufacturing method therefor |
| WO2013150736A1 (en) * | 2012-04-02 | 2013-10-10 | 川崎重工業株式会社 | Railroad vehicle |
| JP2013212762A (en) * | 2012-04-02 | 2013-10-17 | Kawasaki Heavy Ind Ltd | Railway vehicle |
| GB2567931A (en) * | 2012-09-20 | 2019-05-01 | Hitachi Ltd | Vehicle body structure |
| GB2520645A (en) * | 2012-09-20 | 2015-05-27 | Hitachi Ltd | Vehicle body structure |
| JPWO2014045363A1 (en) * | 2012-09-20 | 2016-08-18 | 株式会社日立製作所 | Vehicle structure |
| WO2014045363A1 (en) * | 2012-09-20 | 2014-03-27 | 株式会社 日立製作所 | Vehicle body structure |
| GB2520645B (en) * | 2012-09-20 | 2019-09-04 | Hitachi Ltd | Railway vehicle body structure |
| GB2567931B (en) * | 2012-09-20 | 2019-11-27 | Hitachi Ltd | Railway vehicle body structure |
| JP2017065591A (en) * | 2015-10-01 | 2017-04-06 | 川崎重工業株式会社 | Railway vehicle underframe structure |
| WO2017103865A1 (en) * | 2015-12-18 | 2017-06-22 | Universidad Eafit | Cross-member for rail passenger vehicles, method for the assembly thereof, and method for arranging same in the body of a rail vehicle |
| JP2017144911A (en) * | 2016-02-18 | 2017-08-24 | 日本車輌製造株式会社 | Railway vehicle body structure |
| JP2018058387A (en) * | 2016-09-30 | 2018-04-12 | 株式会社日立製作所 | Rail vehicle body structure |
| CN112249070A (en) * | 2020-09-24 | 2021-01-22 | 中车南京浦镇车辆有限公司 | Connecting structure of railway vehicle sleeper beam and floor |
| CN113276897A (en) * | 2021-06-22 | 2021-08-20 | 中车株洲电力机车有限公司 | Subway vehicle |
| CN113291342A (en) * | 2021-07-12 | 2021-08-24 | 中车长春轨道客车股份有限公司 | Rail vehicle and chassis thereof |
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