JP2006240482A - Railroad vehicle body - Google Patents

Railroad vehicle body Download PDF

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JP2006240482A
JP2006240482A JP2005058764A JP2005058764A JP2006240482A JP 2006240482 A JP2006240482 A JP 2006240482A JP 2005058764 A JP2005058764 A JP 2005058764A JP 2005058764 A JP2005058764 A JP 2005058764A JP 2006240482 A JP2006240482 A JP 2006240482A
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vehicle body
longitudinal direction
vehicle
joist
underframe
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JP4673092B2 (en
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Masaaki Shigeyama
正明 茂山
Kenji Oshita
健治 尾下
Hisafumi Furukawa
尚史 古川
Michifumi Takechi
通文 武市
Akihiko Torii
昭彦 鳥居
Shuji Nakamura
修二 中村
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Hitachi Ltd
Central Japan Railway Co
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Hitachi Ltd
Central Japan Railway Co
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Abstract

<P>PROBLEM TO BE SOLVED: To improve an underframe of a railroad vehicle having an airtight structure. <P>SOLUTION: The underframe 10 has a side beam 20 arranged at both end position of the width direction of a vehicle body along the longitudinal direction of the vehicle body. The side beam 20 consists of an aluminum alloy-made extrusion having a hollow sectional shape. An end beam 30 is joined with an end of each side beam in the longitudinal direction of the vehicle body. A body bolster 40 is installed at the truck installation position of the underframe 10. A joist 70 and a joist 75 are installed on an upper face of a floor plate 60. The joist 70 and the joist 75 consists of an aluminum alloy-made extrusion having an inverted L-shaped sectional shape. The joist 70 is installed along the longitudinal direction of the vehicle body over the substantially entire length of the underframe 10. A slit 77 is formed in the joist 70 in a longitudinal plate part of the inverted L-shaped sectional shape. The slit attenuates the vibration from the body bolster. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、鉄道車両の車体に関する。   The present invention relates to a vehicle body of a railway vehicle.

鉄道車両の車体は、台枠と、二つの側構体と、屋根構体と、長手方向の両端部の妻構体と、から構成されている。前記台枠の上面には、複数の根太が設置されており、各根太の上に複数の床板が設置されている。この各床板によって客室床が構成されている。車体を支持する台車は、前記台枠を構成する枕梁の位置で車体全体の荷重を支えている。台車からの振動が車体支持装置、枕梁および根太を介して床板に伝わり、客室床を振動させることによって、客室内騒音の一因となっていた。この客室床の振動は、台枠の枕梁が設置されている部分すなわち車端部台枠部分の構造によって大きく左右される。このような鉄道車両の車体における客室床の振動を抑制する例としては、特許文献１に示す構造が挙げられる。
特許３５６３０４５号公報 The vehicle body of a railway vehicle includes a frame, two side structures, a roof structure, and end structures at both ends in the longitudinal direction. A plurality of joists are installed on the upper surface of the underframe, and a plurality of floor boards are installed on each joists. Each floor board constitutes a guest room floor. The cart that supports the vehicle body supports the load of the entire vehicle body at the position of the pillow beam that constitutes the frame. The vibration from the carriage is transmitted to the floor board through the body support device, the pillow beam and the joist, and causes the cabin floor to vibrate, thereby contributing to the noise in the cabin. The vibration of the passenger compartment floor is greatly influenced by the structure of the underframe pillow beam, that is, the structure of the vehicle end underframe. As an example of suppressing the vibration of the passenger compartment floor in the body of such a railway vehicle, there is a structure shown in Patent Document 1.
Japanese Patent No. 3563045

特許文献１に示された台枠構造においては、客室床の振動を抑制するために、枕梁から車体長手方向の端部の根太について、車体幅方向の端部に近い位置には該根太を配置し、車体幅方向の中央部分には根太を設けない構造としている。或いは、車体長手方向に沿って配置される根太のうち、枕梁の上面に設置される根太を枕梁の中心ピン設置位置より離れた位置に設置する構造となっている。   In the frame structure shown in Patent Document 1, in order to suppress vibration of the passenger compartment floor, the joists at the ends in the vehicle body longitudinal direction from the pillow beams are placed at positions close to the ends in the vehicle body width direction. It has a structure in which a joist is not provided at the center in the vehicle body width direction. Alternatively, of the joists arranged along the longitudinal direction of the vehicle body, the joists installed on the upper surface of the pillow beam are installed at positions away from the central pin installation position of the pillow beam.

一方、高速走行を行なう鉄道車両、例えば、新幹線電車の場合には、高速走行時の車外圧力変動による乗客への影響を抑制するために、車体を気密構造としている。前記台枠構造においては、両側の側梁の間であって、枕梁との間に、複数の床板が設置されており、この床板によって気密構造を構成していた。この床板は、Ｔ字断面のリブを備えた押出し形材によって構成されている。複数の床板を前記両側梁と枕梁の間の空間を塞ぐように設置しているため、部品点数の削減および製作工数の低減について、十分配慮されてはいなかった。
本発明の目的は、台枠を構成する部品点数を少なくするとともに、客室床の振動を低減することにある。 On the other hand, in the case of a railway vehicle that travels at high speed, such as a Shinkansen train, the vehicle body has an airtight structure in order to suppress the influence on passengers due to fluctuations in pressure outside the vehicle during high-speed travel. In the underframe structure, a plurality of floor boards are installed between the side beams on both sides and between the pillow beams, and an airtight structure is configured by the floor boards. This floor board is constituted by an extruded shape member provided with a rib having a T-shaped cross section. Since a plurality of floor boards are installed so as to block the space between the both side beams and the pillow beams, sufficient consideration has not been given to the reduction of the number of parts and the number of manufacturing steps.
An object of the present invention is to reduce the number of parts constituting the underframe and to reduce vibration of the passenger compartment floor.

上記目的を達成するために、本発明の台枠と、二つの側構体と、二つの妻構体と、屋根構体とからなる鉄道車両の車体において、前記台枠は、幅方向両側位置に、車体長手方向に沿って設置された二本の側梁と、前記側梁の間に設置された二本の枕梁と、前記二本の側梁の端部に設置された二本の端梁と、前記側梁の間に設置される複数の横梁とから構成されており、前記各枕梁、各端梁、各横梁は、その長手方向を車体幅方向の沿って配置され、それぞれの端部は前記側梁に接合されており、前記台枠の車端部台枠部分の上部には複数の中空押出し形材よりなる床板が設置されており、前記複数の中空押出し形材は、その押出し方向を車体長手方に沿って配置されており、前記複数の中空押出し形材は、横梁と端梁との間に設置されており、複数の各押出し形材は車体幅方向に並べられて接合されており、前記枕梁は、前記横梁と端梁との中間位置に設置されており、前記車端部台枠部分の床板上面には、複数の根太が設置されており、前記各床根太は、長手方向を車体長手方向に沿って配置されており、車体幅方向の中央よりに配置された床根太は、枕梁に重なる位置を除く部分に振動伝達を抑制するスリットを有しているものである。   In order to achieve the above object, in the vehicle body of a railway vehicle comprising the underframe, the two side structures, the two end structures, and the roof structure according to the present invention, the underframes are arranged at both sides in the width direction. Two side beams installed along the longitudinal direction, two pillow beams installed between the side beams, two end beams installed at the ends of the two side beams, , Each of the pillow beams, each end beam, each horizontal beam is arranged along the longitudinal direction of the vehicle body, and each end portion Are joined to the side beams, and a floor plate made of a plurality of hollow extruded shapes is installed at the upper part of the vehicle end portion frame portion of the underframe, and the plurality of hollow extruded shapes are extruded. The direction is arranged along the longitudinal direction of the vehicle body, and the plurality of hollow extruded shapes are installed between the cross beam and the end beam. A plurality of extruded shapes are arranged and joined in the vehicle body width direction, and the pillow beam is installed at an intermediate position between the transverse beam and the end beam, and is formed on the floor plate upper surface of the vehicle end underframe portion. Is provided with a plurality of joists, each floor joist is arranged along the longitudinal direction of the vehicle body, and the floor joists arranged from the center in the vehicle body width direction overlap with the pillow beam. It has a slit which suppresses vibration transmission in the part except.

そして、前記複数の根太のうち、車体幅方向の中央に配置された根太の外側に配置された根太は、車体長手方向に断続的に設置されているものである。   Of the plurality of joists, the joists disposed outside the joists disposed at the center in the vehicle body width direction are intermittently disposed in the longitudinal direction of the vehicle body.

以下、本発明の一実施例を図１乃至図３によって説明する。図１は、本発明による鉄道車両の車体における台枠の斜視図である。図２は、図１のII−II部断面図、図３は図１のIII−III矢視図である。   An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view of a frame in a vehicle body of a railway vehicle according to the present invention. 2 is a cross-sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a view taken along the line III-III of FIG.

図において、台枠１０は、車体幅方向の両端位置に、車体長手方向に沿って配置された側梁２０を備えている。この側梁２０は、中空断面形状を有したアルミ合金製の押出し形材によって構成されている。各側梁２０の車体長手方向の端部には、端梁３０が接合されている。前記台枠１０の台車設置位置には、枕梁４０が設置されている。この枕梁４０は、中空断面形状を有したアルミ合金製の押出し形材によって構成されている。   In the figure, the underframe 10 includes side beams 20 disposed along the longitudinal direction of the vehicle body at both end positions in the vehicle body width direction. The side beam 20 is made of an extruded material made of an aluminum alloy having a hollow cross-sectional shape. End beams 30 are joined to the end portions of the side beams 20 in the longitudinal direction of the vehicle body. Pillow beams 40 are installed at the carriage installation position of the frame 10. The pillow beam 40 is made of an extruded material made of an aluminum alloy having a hollow cross-sectional shape.

図に示した枕梁４０は、二つの中空押出し形材を平行に並べ、その上面および下面をアルミ合金製板材によって連結した箱型の断面形状となっている。この枕梁４０は、その長手方向を車体幅方向に沿って配置されている。この枕梁４０から前記端梁３０に向かって二本の中梁５０が伸びている。この中梁５０は、中空断面形状を有したアルミ合金製の押出し形材によって構成されている。二本の中梁５０の間には、連結器が設置される。   The pillow beam 40 shown in the figure has a box-shaped cross-sectional shape in which two hollow extruded shapes are arranged in parallel and their upper and lower surfaces are connected by an aluminum alloy plate. The pillow beam 40 is arranged with its longitudinal direction along the vehicle body width direction. Two middle beams 50 extend from the pillow beam 40 toward the end beam 30. The intermediate beam 50 is formed of an extruded shape member made of an aluminum alloy having a hollow cross-sectional shape. A coupler is installed between the two middle beams 50.

二本の前記側梁２０と前記端梁３０および枕梁４０によって囲まれた部分には床板６０が設置されている。この床板６０は、中空断面形状を有したアルミ合金製の押出し形材によって構成されている。床板６０は、その押出し方向を車体長手方向に沿って配置されている。床板６０は、その断面がトラス形状を成しており、車体幅方向に複数並べられて接合されている。床板６０の上面と前記枕梁４０の上面は、一致しており、台枠１０の上面を平坦に構成している。床板６０は、前記枕梁４０の車体長手方向中央側、すなわち、端梁３０とは反対側にも設置されている。   A floor board 60 is installed in a portion surrounded by the two side beams 20, the end beams 30 and the pillow beams 40. The floor plate 60 is made of an extruded material made of an aluminum alloy having a hollow cross-sectional shape. The floor board 60 is disposed along the longitudinal direction of the vehicle body in the pushing direction. The cross section of the floor board 60 has a truss shape, and a plurality of floor boards 60 are arranged and joined in the vehicle body width direction. The upper surface of the floor board 60 and the upper surface of the pillow beam 40 coincide with each other, and the upper surface of the underframe 10 is configured to be flat. The floor plate 60 is also installed on the center side of the pillow beam 40 in the longitudinal direction of the vehicle body, that is, on the side opposite to the end beam 30.

したがって、枕梁４０の車体長手方向の両側には、それぞれ床板６０が設置されている。床板６０の高さ寸法は、前記枕梁４０よりも短く構成されている。本実施例の車体は、全体が気密構造として構成されており、前記床板６０の部分で気密を保つ構造となっている。   Therefore, the floor boards 60 are installed on both sides of the pillow beam 40 in the longitudinal direction of the vehicle body. The height dimension of the floor board 60 is configured to be shorter than the pillow beam 40. The vehicle body of the present embodiment is configured as an airtight structure as a whole, and has a structure in which the floor plate 60 is kept airtight.

前記床板６０は、台枠１０の車体長手方向について、台車の上方に相当する車端部台枠部分に設置されている。台枠の車体長手方向のうち、前記車端部台枠部は、下方に台車が位置しているため、剛性が必要な部分でありながら縦寸法（高さ寸法）を十分確保できない構造となっている。したがって、台車を連結する最も強度の必要な部分に枕梁を設置して強度を確保している。また、枕梁の車体長手方向両側には、前記中空断面を有した押出し形材からなる床板を設置して、強度の確保と機密性を保つ精進となっている。   The floor board 60 is installed in a vehicle end part frame corresponding to the upper side of the vehicle in the longitudinal direction of the vehicle body of the frame 10. In the longitudinal direction of the vehicle body of the underframe, the vehicle end underframe portion has a structure in which the vertical dimension (height dimension) cannot be sufficiently secured even though it is a rigid part because the carriage is located below. ing. Therefore, the strength is ensured by installing pillow beams at the most necessary parts connecting the carts. Further, floor plates made of extruded shape members having the hollow cross section are installed on both sides of the pillow beam in the longitudinal direction of the vehicle body, so that the strength is maintained and confidentiality is maintained.

一方、台枠のうち、車体長手方向両側の前記車端部台枠部の間に位置する中間台枠部には、縦寸法（高さ寸法）を車端部台枠部よりも確保しやすいため、Ｉ字形断面をなした横梁を設置している。   On the other hand, the vertical dimension (height dimension) is easier to secure in the intermediate frame part positioned between the vehicle end part frame parts on both sides in the longitudinal direction of the vehicle body than the vehicle end part frame part. Therefore, a cross beam having an I-shaped cross section is installed.

前記横梁は、その長手方向を車体幅方向に沿わせて設置され、端部を前記側梁２０に接合されている。各横梁の上面に従来の床部材を設置した構造となっている。前記従来の床部材は、平板状のアルミ合金製の押出し形材であって、車外側表面にＴ字型断面形状のリブを一体に形成した構造となっている。   The horizontal beam is installed with its longitudinal direction along the vehicle body width direction, and an end portion is joined to the side beam 20. A conventional floor member is installed on the upper surface of each cross beam. The conventional floor member is a flat aluminum alloy extruded shape, and has a structure in which a rib having a T-shaped cross section is integrally formed on the outer surface of the vehicle.

前記横梁は、垂直曲げ剛性を確保できるとともに中空断面をなす押出し形材に比べて軽量化を図ることができる。この横梁の上面には、前記従来の床部材が設置され、この床部材が中間台枠部の気密を保つ構造となっている。   The transverse beam can ensure vertical bending rigidity and can be reduced in weight as compared with an extruded shape member having a hollow cross section. The conventional floor member is installed on the upper surface of the horizontal beam, and this floor member has a structure that keeps the intermediate frame portion airtight.

前記枕梁４０の車体幅方向中央位置の下面には、台車を連結するための中心ピン８０が設置されている。この中心ピン８０と台車とは、連結リンクによって連結されている。この中心ピン８０によって、台車からの推進力および制動力を台枠１０に伝える。また、台枠からの振動もこの中心ピン８０を介して台枠１０に伝えられる。なお、枕梁４０の車体幅方向両端位置には、台車との間に空気ばねが設置されている。   A center pin 80 for connecting the carriage is provided on the lower surface of the pillow beam 40 at the center position in the vehicle width direction. The center pin 80 and the carriage are connected by a connecting link. The center pin 80 transmits propulsive force and braking force from the carriage to the frame 10. Further, vibration from the frame is also transmitted to the frame 10 via the center pin 80. Note that air springs are installed at both ends of the pillow beam 40 in the vehicle width direction between the pillow beams 40 and the carriage.

前記床板６０の上面には、根太７０および根太７５が設置されている。この根太７０および根太７５は、逆Ｌ字型断面形状を有したアルミ合金製の押出し形材によって構成されている。前記根太７０は、台枠１０のほぼ全長にわたって、車体長手方向に沿わせて設置されている。前記根太７５は、前記根太７０と平行に設置されている。前記根太７５は、所定の長さ例えば６００ｍｍ程度のものが、所定のピッチ例えば１０００ｍｍ程度のピッチで、断続的に設置されている。   On the upper surface of the floor board 60, joists 70 and joists 75 are installed. The joists 70 and 75 are made of an extruded material made of an aluminum alloy having an inverted L-shaped cross-sectional shape. The joists 70 are installed along the longitudinal direction of the vehicle body over almost the entire length of the underframe 10. The joist 75 is installed in parallel with the joist 70. The joist 75 having a predetermined length, for example, about 600 mm, is intermittently installed at a predetermined pitch, for example, about 1000 mm.

前記根太７０には、逆Ｌ字型断面形状の縦板部にスリット７７が形成されている。このスリット７７は、図３に示すように、根太７０が前記枕梁と重なる部分よりもずらした位置であって、枕梁４０に近い位置に形成されている。   In the joist 70, a slit 77 is formed in a vertical plate portion having an inverted L-shaped cross section. As shown in FIG. 3, the slit 77 is formed at a position where the joist 70 is shifted from the portion overlapping the pillow beam and close to the pillow beam 40.

このような台枠１０の構造においては、台車からの振動が連結ピンを介して中心ピン８０に伝わり、枕梁４０を振動させる。枕梁４０は、それ自体剛性が高いため、ビビリ振動を起こすことはないが、該枕梁４０に接合されている根太７０に枕梁４０からの振動が伝わる。根太７０は、枕梁４０から車体長手方向に伸びているため、枕梁４０からの振動伝幅によって、大きく振動することが予想される。この根太７０の振動を抑制するために、前記スリット７７が設けられている。   In such a structure of the underframe 10, vibration from the carriage is transmitted to the center pin 80 via the connecting pin, and the pillow beam 40 is vibrated. Since the pillow beam 40 itself has high rigidity, chatter vibration does not occur, but vibration from the pillow beam 40 is transmitted to the joists 70 joined to the pillow beam 40. Since the joist 70 extends from the pillow beam 40 in the longitudinal direction of the vehicle body, the joist 70 is expected to vibrate greatly due to the vibration transmission width from the pillow beam 40. In order to suppress the vibration of the joist 70, the slit 77 is provided.

枕梁４０から根太７０に伝わった振動は、該根太７０のスリット７７が設けられている部分で減衰されてしまい根太７０の枕梁４０から離れた部分を大きく振動させることがない。このことにより、根太７０の上面に設けられる室内床板へ伝わる振動を低減することができる。従来、台車から枕梁を介して根太へ伝えられた振動によって、室内床板が振動することによって、車内騒音が増大していたが、前述の構造によれば、根太７０のスリット７７によって振動伝幅を抑制することができるため、室内床板の振動を抑え、車内騒音を低減することができる。   The vibration transmitted from the pillow beam 40 to the joist 70 is attenuated at the portion of the joist 70 where the slit 77 is provided, and the portion of the joist 70 away from the pillow beam 40 is not greatly vibrated. Thereby, vibration transmitted to the indoor floor board provided on the upper surface of the joist 70 can be reduced. Conventionally, the interior floor board vibrates due to the vibration transmitted from the carriage to the joist via the pillow beam, so that the noise in the vehicle has increased. Therefore, the vibration of the indoor floor board can be suppressed and the vehicle interior noise can be reduced.

根太７５は、車体長手方向に断続的に設置されていることから、枕梁４０からの振動の影響を受けにくく、また、台枠１０全体の軽量化を考慮した構造となっている。   Since the joist 75 is intermittently installed in the longitudinal direction of the vehicle body, the joist 75 is less susceptible to vibration from the pillow beam 40 and has a structure that takes into account the weight reduction of the entire frame 10.

このような台枠１０によれば、床板６０を前述の中空断面形状を有した押出し形材とすることにより、車端部台枠部の剛性を向上させて、騒音源である台車からの騒音が車内へ伝わるのを防止することができる。また、車端部台枠部の剛性向上に伴なう枕梁４０から伝わる振動については、根太７０にスリット７７を設けることによって減衰させることができる。さらに、本構造によれば、中空断面形状の押出し形材からなる床板６０を用いることにより、部品点数を少なくすることができる。   According to such a frame 10, the floor plate 60 is made of the extruded shape having the hollow cross-sectional shape described above, so that the rigidity of the vehicle end frame is improved, and the noise from the vehicle as a noise source is increased. Can be prevented from being transmitted into the vehicle. Further, vibration transmitted from the pillow beam 40 accompanying the improvement in the rigidity of the vehicle end frame can be damped by providing a slit 77 in the joist 70. Furthermore, according to this structure, the number of parts can be reduced by using the floor board 60 which consists of an extrusion-shaped material of a hollow cross-sectional shape.

本発明の車体の台枠の斜視図。The perspective view of the base frame of the vehicle body of this invention. 図１のII−II断面図。II-II sectional drawing of FIG. 図１のIII−III矢視図。III-III arrow line view of FIG.

符号の説明Explanation of symbols

１０ 台枠
２０ 側梁
３０ 端梁
４０ 枕梁
５０ 中梁
６０ 床板
７０，７５ 根太
７７ スリット
８０ 中心ピン 10 frame 20 side beam 30 end beam 40 pillow beam 50 center beam 60 floor board 70,75 joist 77 slit 80 center pin

Claims (2)

台枠と、二つの側構体と、二つの妻構体と、屋根構体とからなる鉄道車両の車体において、
前記台枠は、幅方向両側位置に、車体長手方向に沿って設置された二本の側梁と、前記側梁の間に設置された二本の枕梁と、前記二本の側梁の端部に設置された二本の端梁と、前記側梁の間に設置される複数の横梁とから構成されており、
前記各枕梁、各端梁、各横梁は、その長手方向を車体幅方向の沿って配置され、それぞれの端部は前記側梁に接合されており、
前記台枠の車端部台枠部分の上部には複数の中空押出し形材よりなる床板が設置されており、前記複数の中空押出し形材は、その押出し方向を車体長手方に沿って配置されており、前記複数の中空押出し形材は、横梁と端梁との間に設置されており、複数の各押出し形材は車体幅方向に並べられて接合されており、
前記枕梁は、前記横梁と端梁との中間位置に設置されており、
前記車端部台枠部分の床板上面には、複数の根太が設置されており、前記各床根太は、長手方向を車体長手方向に沿って配置されており、車体幅方向の中央よりに配置された床根太は、枕梁に重なる位置を除く部分に振動伝達を抑制するスリットを有していること、
を特徴とする鉄道車両の車体。 In the body of a railway vehicle consisting of a underframe, two side structures, two wife structures, and a roof structure,
The underframe includes two side beams installed along the longitudinal direction of the vehicle body at both side positions in the width direction, two pillow beams installed between the side beams, and the two side beams. It is composed of two end beams installed at the end and a plurality of transverse beams installed between the side beams,
Each pillow beam, each end beam, and each horizontal beam are arranged along the longitudinal direction of the vehicle body in the longitudinal direction, and each end is joined to the side beam,
A floor plate made of a plurality of hollow extruded shapes is installed at the upper part of the vehicle end portion of the frame of the underframe, and the plurality of hollow extruded shapes are arranged along the longitudinal direction of the vehicle body. The plurality of hollow extruded shapes are installed between the cross beam and the end beam, and the plurality of extruded shapes are aligned and joined in the vehicle body width direction,
The pillow beam is installed at an intermediate position between the lateral beam and the end beam,
A plurality of joists are installed on the top surface of the floor plate of the vehicle end part frame portion, and each floor joist is arranged along the longitudinal direction of the vehicle body, and is arranged from the center in the vehicle body width direction. The floor joist that has been made has a slit that suppresses vibration transmission in a portion other than the position overlapping the pillow beam,
The body of a railway vehicle characterized by 請求項１において、前記複数の根太のうち、車体幅方向の中央に配置された根太の外側に配置された根太は、車体長手方向に断続的に設置されていること、
を特徴とする鉄道車両の車体。 In Claim 1, among the plurality of joists, the joists disposed outside the joists disposed at the center in the vehicle body width direction are intermittently disposed in the vehicle body longitudinal direction.
The body of a railway vehicle characterized by
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JP2007191016A (en) * 2006-01-18 2007-08-02 Hitachi Ltd Floor structure of railway vehicle
JP2010173628A (en) * 2009-01-05 2010-08-12 Hitachi Ltd Vehicle body structure
JP2010254091A (en) * 2009-04-23 2010-11-11 Toshiba Corp Locomotive vehicle body structure
JP2012025325A (en) * 2010-07-27 2012-02-09 Kawasaki Heavy Ind Ltd Underframe structure of rolling stock
JPWO2014045363A1 (en) * 2012-09-20 2016-08-18 株式会社日立製作所 Vehicle structure
CN107571884A (en) * 2017-10-11 2018-01-12 重庆中车长客轨道车辆有限公司 A kind of edge beam of underframe structure of Straddle type monorail vehicle
CN110304091A (en) * 2019-07-16 2019-10-08 中车株洲电力机车有限公司 A kind of rail vehicle and its Undercarriage structure
CN112026812B (en) * 2020-09-10 2021-11-09 中车青岛四方机车车辆股份有限公司 Boarding step structure, vehicle body and rail vehicle
CN112026812A (en) * 2020-09-10 2020-12-04 中车青岛四方机车车辆股份有限公司 Boarding step structure, vehicle body and rail vehicle
CN112519817A (en) * 2020-11-27 2021-03-19 中铁磁浮科技（成都）有限公司 Vehicle body chassis structure of medium-low speed magnetic levitation vehicle
CN112406922A (en) * 2020-12-11 2021-02-26 中车资阳机车有限公司 Floor beam structure of modularized cab of shunting locomotive
CN112406922B (en) * 2020-12-11 2024-04-16 中车资阳机车有限公司 Modular cab floor beam structure of shunting locomotive
WO2022219713A1 (en) * 2021-04-13 2022-10-20 株式会社日立製作所 Railway vehicle and manufacturing method therefor
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CN114194240A (en) * 2022-01-20 2022-03-18 河北京车轨道交通车辆装备有限公司 Modular subway underframe and manufacturing method thereof
CN115416710A (en) * 2022-09-15 2022-12-02 中车青岛四方机车车辆股份有限公司 Underframe structure and railway vehicle
CN115416710B (en) * 2022-09-15 2023-09-26 中车青岛四方机车车辆股份有限公司 Chassis structure and rail vehicle

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