JP4283603B2

JP4283603B2 - Railcar structures

Info

Publication number: JP4283603B2
Application number: JP2003164229A
Authority: JP
Inventors: 慶知渡辺
Original assignee: Nippon Sharyo Ltd
Current assignee: Nippon Sharyo Ltd
Priority date: 2003-06-09
Filing date: 2003-06-09
Publication date: 2009-06-24
Anticipated expiration: 2023-06-09
Also published as: JP2005001423A

Description

【０００１】
【発明の属する技術分野】
本発明は、構体の途中から一方の車端方向に向けて車体幅方向の断面積を小さくする形状の鉄道車両用構体に関する。
【０００２】
【従来の技術】
鉄道車両の構体では、土台となる台枠上に、側壁となる側構体と、前後端の壁となる妻構体とを構築し、側構体と屋根構体との間に、車体幅方向断面を円弧状に形成した肩部材を車体長手方向に配置し、該肩部材を介して側構体と屋根構体とを結合するものがある（例えば、特許文献１参照。）。
【０００３】
この構体の車体幅方向の断面積は車体長手方向に沿って一様であるが、近年、走行時の空気抵抗の低減やデザイン上の要求から、高速鉄道車両（例えば、新幹線（登録商標：以下同じ））の先頭車両のように、構体の途中から一方の車端方向に向けて車体幅方向の断面積を小さくした形状の構体がある。
【０００４】
新幹線の先頭車両は、先頭部分が複雑な三次元形状をしているため、各部位によって形状がそれぞれ異なる車両輪切り方向の周方向骨部材とこれらに交差する車体長手方向骨部材とで骨組みを組み、その上に外板を張って先頭部ブロックを製作し、この先頭部ブロックを車体幅方向の断面積が一様な構体に直接結合している（例えば、特許文献２参照。）。
【０００５】
【特許文献１】
特開平８−２６１０７号公報（第１〜８頁、図１，４）
【０００６】
【特許文献２】
特許第３３０８８５１号掲載公報（第１〜４頁、図１〜７）
【０００７】
【発明が解決しようとする課題】
しかしながら、上述の先頭部ブロックは、結合側の断面積が大きいことから、デザイン上の制約で、先頭までの距離が長くなって、先頭部ブロックが大型化し、多数の骨部材が必要で、製作工程が長時間に亘るものとなる。
【０００８】
そこで本発明は、断面積が一様な構体と先頭部ブロックとの間に、部品点数の少ない簡易な構成で先頭部ブロックとの結合部分の断面積を小さくした構体を設けることにより、先頭部ブロックの小型化が図れる鉄道車両用構体を提供することを目的としている。
【０００９】
【課題を解決するための手段】
上記した目的を達成するため、本発明は、車体先頭方向に向けて車体幅方向の断面積を小さくした高速鉄道車両の先頭部ブロックの構体と、車体長手方向に沿って車体幅方向の断面積が一様な標準構体との間に、前記先頭部ブロックの構体方向に向けて車体幅方向の断面積が小さくなる傾斜構体を結合してなる鉄道車両用構体において、前記標準構体は、両側部の間隔を平行とした台枠部分に設けられる左右の側構体と、屋根構体と、各側構体の上部と前記屋根構体の側部とに結合される車体幅方向断面形状が円弧状で、かつ、車体長手方向に亘って同じ幅に形成されている肩部材とで構成され、前記傾斜構体は、前記標準構体の側構体に結合されて、前記先頭部ブロック方向に向けて両側部の間隔を漸次狭くした台枠部分に設けられる左右の傾斜側構体と、前記標準構体の屋根構体に結合されて、前記先頭部ブロック方向に向けて前記台枠との間隔を漸次狭くするように傾斜して設けられる傾斜屋根構体と、前記標準構体の肩部材に結合されて、各傾斜側構体の上部と前記傾斜屋根構体の側部とに結合される車体幅方向断面形状が円弧状で、かつ、前記先頭部ブロック方向に向けて幅を漸次狭くするとともに前記先頭部ブロック方向に向けて円弧状断面の曲率を漸次大きく形成した傾斜肩部材とで構成され、前記傾斜肩部材は、前記標準構体の肩部材から前記先頭部ブロック方向に向けて配置される複数の円弧状をした車体幅方向骨部材と、該複数の車体幅方向骨部材に交差する複数の直線状の車体長手方向骨部材とからなる骨組みに外板を張り付けて構成され、前記複数の車体幅方向骨部材は、前記標準構体の肩部材に結合される車体幅方向骨部材の曲率よりも前記先頭部ブロック方向に配置される車体幅方向骨部材の曲率を漸次大きく形成され（曲率半径を小さく形成した）、前記複数の車体長手方向骨部材は、前記先頭部ブロック方向に向けてそれぞれの間隔を狭くして前記各車体幅方向骨部材に結合されて骨組みを構成し、前記外板は、前記先頭部ブロック方向に向けその幅を漸次狭くするとともに前記骨組みに沿って円弧状に湾曲されて該骨組みに結合されることを特徴としている。また、前記側構体及び屋根構体は、車体幅方向の断面が直線状でも、少なくとも一方の車体幅方向の断面が円弧状でもよい。
【００１０】
【発明の実施の形態】
以下、本発明を図面に示される一実施形態例に基づいて説明する。車両用構体１は、台枠２上に、車体幅方向の断面積は車体長手方向に沿って一様な標準構体３と、該標準構体３の車体長手方向所定位置に結合されて一方の車端方向に向けて車体幅方向の断面積が小さくなる傾斜構体４とを設けている。
【００１１】
台枠２は、両側部の間隔を平行とした部分２ａと、台枠２の両側部の間隔を一方の車端方向に向けて漸次狭くした部分２ｂとを有し、標準構体３は、台枠２の両側部の間隔を平行とした部分２ａに設けられる両側構体５（一方は図示せず）と、台枠２の他方の車端部に設けられる妻構体６と、両側構体５と屋根構体７とを結合する肩部材８とで構成されている。両側構体５は、車体幅方向の断面が直線状で、台枠２の両側に平行に設けられ、屋根構体７は、車体幅方向の断面が直線状で、台枠２と平行に設けられ、肩部材８は、車体幅方向断面形状が円弧状に形成され、車体長手方向に亘って同じ幅に形成されている。
【００１２】
傾斜構体４は、台枠２の両側部の間隔を一方の車端方向に向けて漸次狭くした部分２ｂに設けられた傾斜側構体１０，１０と、各傾斜側構体１０の上部に結合される傾斜肩部材１１と、各傾斜肩部材１１に結合される傾斜屋根構体１２と、一方の車端に設けられた妻構体１３とで構成されている。
【００１３】
傾斜側構体１０，１０は、内外一対の面板１０ａ，１０ｂ間に車体長手方向の補強リブ１０ｃをトラス状に設けたいわゆるダブルスキン構造の板材からなり、前記標準構体３の側構体５に結合されて、一方の車端方向に向けて両者の間隔を漸次狭くするように傾斜して設けられている。傾斜屋根構体１２は、内外一対の面板１２ａ，１２ｂ間に車体長手方向の補強リブ１２ｃをトラス状に設けたダブルスキン構造の板材からなり、前記標準構体３の屋根構体７に結合されて、一方の車端方向に向けて台枠２との間隔を漸次狭くするように傾斜して設けられている。妻構体１３は、前記妻構体６と平行に設けられ、傾斜側構体１０，１０、傾斜肩部材１１及び傾斜屋根構体１２の端部に結合されている。
【００１４】
傾斜肩部材１１は、前記側構体５側から一方の車端方向に向けて配置される３本の円弧状をした車体幅方向骨部材１４，１５，１６と、該車体幅方向骨部材１４，１５，１６に交差する５本の直線状の車体長手方向骨部材１７，１８，１９，２０，２１とからなる骨組み２２に外板２３を張り付けて構成されている。
【００１５】
前記３本の車体幅方向骨部材１４，１５，１６は、前記側構体５に結合される車体幅方向骨部材１４の曲率よりも車体幅方向骨部材１５の曲率が大きく、該車体幅方向骨部材１５の曲率よりも車体幅方向骨部材１６の曲率が大きく形成され、前記５本の車体長手方向骨部材１７，１８，１９，２０，２１は、一方の車端方向に向けてそれぞれの間隔を狭くして各車体幅方向骨部材１４，１５，１６に結合されて骨組み２２を構成している。外板２３は、その幅を一方の車端方向に向けて漸次狭くするとともに骨組み２２に沿って円弧状に湾曲されて骨組み２２に結合されている。
【００１６】
これにより、傾斜肩部材１１は、あたかも、中空円錐体の壁部を先端方向に向けて切り欠いたように、その幅を一方の車端方向に向けて漸次狭くするとともに円弧状断面の曲率を一方の車端方向に向けて漸次大きく、すなわち、曲率半径を小さく形成される。
【００１７】
この構成により、傾斜構体４は、標準構体３の途中から次第に車体形状が幅及び高さにおいて狭くなり、標準構体３に結合された部分の車体幅方向断面積よりも一方の車端側である妻構体１３の車体幅方向断面積が小さくなる。したがって、図３に示されるように、傾斜構体４の妻構体１３に結合される先頭部ブロック２４を従来よりも小型化でき、先頭部ブロック２４の部品点数の削減と製作時間の短縮が図れる。
【００１８】
しかも、傾斜構体４は、傾斜側構体１０，１０及び傾斜屋根構体１２の標準構体３との結合部分を、傾斜角度に合わせて削正加工するとともに、傾斜側構体１０，１０と傾斜屋根構体１２との間隔に合わせて傾斜肩部材１１の幅と曲率を設定するだけの部品点数の少ない簡易な構成で作成できるから、先頭部ブロック２４の小型化と相俟って製作コストの低減が図れる。
【００１９】
なお、上記実施形態例では、傾斜側構体１０及び傾斜屋根構体１２をいわゆるダブルスキン構造のもので説明したが、傾斜側構体１０及び傾斜屋根構体１２の構造は、これに限定されるものではなく、例えば、内外一対の面板間にハニカム構造の補強部材を配置したいわゆる積層パネル構造や、骨部材に外板を張り付けた従来周知の構造、あるいは、これらの組み合わせによる構造でもよい。さらに、標準構体の構造も同様に各種の構造が可能である。また、側構体１０及び屋根構体１２は、車体幅方向の断面が直線状のものに限らず、傾斜側構体１０と傾斜屋根構体１２のいずれか一方の車体幅方向の断面が円弧状のものや、双方が円弧状のものでもよい。
【００２１】
【発明の効果】
以上説明したように、本発明は、断面積が一様な構体と先頭部ブロックとの間に、部品点数の少ない簡易な構成で先頭部ブロックとの結合部分の断面積を小さくした構体を設けることにより、先頭部ブロックの小型化が可能となり、部品点数の削減、製作時間の短縮、製作コストの低減が図れる。
【図面の簡単な説明】
【図１】本発明の一実施形態例の車両用構体の斜視図
【図２】傾斜側構体、傾斜屋根構体及び傾斜肩部材を車体内側から見た拡大斜視図
【図３】先頭部ブロックの結合を示す車両用構体の側面図
【符号の説明】
１…車両用構体、２…台枠、３…標準構体、４…傾斜構体、５…標準構体３の側構体、７…標準構体３の屋根構体、８…標準構体３の肩部材、１０…傾斜構体４の傾斜側構体、１１…傾斜構体４の傾斜肩部材、１２…傾斜構体４の傾斜屋根構体、２４…先頭部ブロック[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a railway vehicle structure having a shape in which the cross-sectional area in the vehicle body width direction is reduced from the middle of the structure toward one vehicle end direction.
[0002]
[Prior art]
In the structure of railroad vehicles, a side structure serving as a side wall and a wife structure serving as a front and rear end wall are constructed on a base frame serving as a base, and a cross section in the vehicle body width direction is circular between the side structure and the roof structure. There is one in which a shoulder member formed in an arc shape is disposed in the longitudinal direction of the vehicle body, and the side structure and the roof structure are coupled via the shoulder member (see, for example, Patent Document 1).
[0003]
The cross-sectional area of the structure in the vehicle body width direction is uniform along the vehicle body longitudinal direction. However, in recent years, high-speed railway vehicles (for example, Shinkansen (registered trademark: (Same)) , there is a structure having a shape in which the cross-sectional area in the vehicle body width direction is reduced from the middle of the structure in the direction of one vehicle end.
[0004]
Since the leading vehicle of the Shinkansen has a complicated three-dimensional shape, the framework is composed of a circumferential bone member in the vehicle wheel-cutting direction and a vehicle body longitudinal bone member that intersects with each other, each having a different shape depending on each part. A head block is manufactured by placing an outer plate thereon, and this head block is directly coupled to a structure having a uniform cross-sectional area in the vehicle body width direction (see, for example, Patent Document 2).
[0005]
[Patent Document 1]
JP-A-8-26107 (pages 1-8, FIGS. 1 and 4)
[0006]
[Patent Document 2]
Japanese Patent No. 3308851 (Pages 1 to 4, FIGS. 1 to 7)
[0007]
[Problems to be solved by the invention]
However, the above-mentioned head block has a large cross-sectional area on the coupling side, so the distance to the head becomes longer due to design restrictions, the head block becomes larger, and a large number of bone members are required. The process takes a long time.
[0008]
In view of this, the present invention provides a head portion between a structure having a uniform cross-sectional area and a head block by providing a structure with a small cross-sectional area of a connecting portion with the head block with a simple configuration having a small number of parts. An object of the present invention is to provide a railway vehicle structure that can reduce the size of a block.
[0009]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention provides a structure of a top block of a high-speed railway vehicle in which the cross-sectional area in the vehicle body width direction is reduced toward the vehicle body front direction, and a cross-sectional area in the vehicle body width direction along the vehicle body longitudinal direction. In the structure for a railway vehicle formed by connecting an inclined structure whose cross-sectional area in the vehicle body width direction is reduced toward the structure direction of the head block between the standard structure and the standard structure, the standard structure includes both side portions. The vehicle body width direction cross-sectional shape coupled to the left and right side structures provided in the underframe portion with the interval of parallel, the roof structure, the upper part of each side structure and the side part of the roof structure is an arc shape, and A shoulder member formed in the same width in the longitudinal direction of the vehicle body, and the inclined structure is coupled to a side structure of the standard structure, with a gap between both sides toward the head block direction. Left and right provided on the gradually narrowed frame An inclined roof structure coupled to an inclined side structure, a roof structure of the standard structure, and inclined so as to gradually narrow a distance from the underframe toward the head block direction, and the standard structure The cross-sectional shape in the vehicle body width direction coupled to the shoulder member and coupled to the upper part of each inclined side structure and the side part of the inclined roof structure is an arc shape, and the width is gradually narrowed toward the head block direction. And an inclined shoulder member formed with a gradually increasing curvature of the arc-shaped cross section toward the head block direction, and the inclined shoulder member is disposed from the shoulder member of the standard structure toward the head block direction. A plurality of arc-shaped vehicle body width direction bone members and a plurality of linear vehicle body longitudinal direction bone members intersecting with the plurality of vehicle body width direction bone members, and an outer plate is attached to the frame. Multiple car bodies The directional bone member is formed so that the curvature of the vehicle body width direction bone member arranged in the head block direction is gradually larger than the curvature of the vehicle body width direction bone member coupled to the shoulder member of the standard structure (the radius of curvature is reduced). The plurality of vehicle body longitudinal direction bone members are configured to form a framework by being coupled to each of the vehicle body width direction bone members by narrowing the respective intervals toward the head block direction, The width is gradually reduced in the direction of the leading block, and it is curved in an arc shape along the frame and coupled to the frame . In addition, the side structure and the roof structure, even the vehicle width direction of the cross-section straight, at least one of the vehicle width direction of the cross section may be arcuate.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on an embodiment shown in the drawings. The vehicle structure 1 is connected to a frame 2 on a frame 2, a cross-sectional area in the vehicle body width direction is uniform along the vehicle body longitudinal direction, and a standard vehicle body 3 in a predetermined position in the vehicle body longitudinal direction. An inclined structure 4 having a smaller cross-sectional area in the vehicle body width direction is provided toward the end direction.
[0011]
The frame 2 has a portion 2a in which the interval between both sides is parallel, and a portion 2b in which the interval between both sides of the frame 2 is gradually narrowed toward one vehicle end direction. Both side structures 5 (one is not shown) provided in the part 2a which made the space | interval of the both sides of the frame 2 parallel, the wife structure 6 provided in the other vehicle end part of the frame 2, the both side structures 5, and the roof The shoulder member 8 is connected to the structure 7. The side structure 5 has a straight section in the vehicle body width direction and is provided in parallel to both sides of the frame 2, and the roof structure 7 has a section in the vehicle body width direction and is provided in parallel with the frame 2. The shoulder member 8 has a cross-sectional shape in the vehicle body width direction formed in an arc shape, and is formed in the same width in the vehicle body longitudinal direction.
[0012]
The inclined structure 4 is coupled to the inclined side structures 10 and 10 provided in the portion 2b in which the distance between both sides of the underframe 2 is gradually narrowed toward one vehicle end direction, and the upper part of each inclined side structure 10. It is comprised by the inclined shoulder member 11, the inclined roof structure 12 couple | bonded with each inclined shoulder member 11, and the wife structure 13 provided in one vehicle end.
[0013]
The inclined side structures 10 and 10 are made of a so-called double skin structure plate member having a truss-like reinforcing rib 10c in the longitudinal direction of the vehicle body between a pair of inner and outer face plates 10a and 10b, and are coupled to the side structure 5 of the standard structure 3. Thus, they are inclined so as to gradually narrow the distance between the two toward the vehicle end direction. The inclined roof structure 12 is made of a double-skin structure plate material having a truss-like reinforcing rib 12c in the longitudinal direction of the vehicle body between a pair of inner and outer face plates 12a, 12b, and is coupled to the roof structure 7 of the standard structure 3. Are inclined so as to gradually narrow the distance from the frame 2 toward the vehicle end. The wife structure 13 is provided in parallel with the wife structure 6 and is coupled to the end portions of the inclined side structures 10, 10, the inclined shoulder member 11, and the inclined roof structure 12.
[0014]
The inclined shoulder member 11 includes three arcuate body width direction bone members 14, 15, 16 arranged from the side structure 5 side toward one vehicle end direction, and the vehicle body width direction bone member 14, An outer plate 23 is attached to a frame 22 composed of five linear body longitudinal direction bone members 17, 18, 19, 20, 21 intersecting 15, 16.
[0015]
The three vehicle body width direction bone members 14, 15, 16 have a curvature of the vehicle body width direction bone member 15 larger than the curvature of the vehicle body width direction bone member 14 coupled to the side structure 5. The curvature of the vehicle body width direction bone member 16 is formed larger than the curvature of the member 15, and the five vehicle body longitudinal direction bone members 17, 18, 19, 20, and 21 are spaced apart from each other toward one vehicle end direction. The frame 22 is configured by being coupled to each of the vehicle body width direction bone members 14, 15, and 16. The outer plate 23 is gradually narrowed in the direction toward one vehicle end, and is curved in an arc shape along the framework 22 and coupled to the framework 22.
[0016]
As a result, the inclined shoulder member 11 gradually narrows its width in the direction of one vehicle end as if the wall portion of the hollow cone was cut out in the front end direction, and the curvature of the arc-shaped cross section is reduced. It is formed so as to gradually increase toward one vehicle end direction, that is, to reduce the radius of curvature.
[0017]
With this configuration, the inclined structure 4 is gradually narrower in width and height from the middle of the standard structure 3, and is closer to one vehicle end than the cross-sectional area in the vehicle width direction of the portion coupled to the standard structure 3. The cross-sectional area of the wife structure 13 in the vehicle width direction is reduced. Therefore, as shown in FIG. 3, the head block 24 coupled to the end structure 13 of the inclined structure 4 can be made smaller than before, and the number of parts of the head block 24 can be reduced and the manufacturing time can be shortened.
[0018]
In addition, the inclined structure 4 is formed by correcting the connecting portion of the inclined side structures 10 and 10 and the inclined roof structure 12 with the standard structure 3 in accordance with the inclination angle, and the inclined side structures 10 and 10 and the inclined roof structure 12. Therefore, the manufacturing cost can be reduced in combination with the miniaturization of the head block 24.
[0019]
Incidentally, those in the above embodiment has been described with reference to tilt swash side structure 10 and the inclined roof structure 12 in a so-called double-skin structure, the structure of the inclined side structure 10 and the inclined roof structure 12 is not limited thereto Instead, for example, a so-called laminated panel structure in which a honeycomb structure reinforcing member is disposed between a pair of inner and outer face plates, a conventionally known structure in which an outer plate is attached to a bone member, or a combination of these may be used. Furthermore, various structures are possible for the structure of the standard structure as well. Further, the side structure 10 and the roof structure 12 are not limited to those having a straight cross section in the vehicle body width direction, and one of the inclined side structure 10 and the inclined roof structure 12 has a circular cross section in the vehicle body width direction. Both of them may be arcuate.
[0021]
【The invention's effect】
As described above, the present invention provides a structure in which the cross-sectional area of the connecting portion with the head block is reduced between the structure having a uniform cross-sectional area and the head block with a simple configuration with a small number of parts. As a result, it is possible to reduce the size of the leading block, and it is possible to reduce the number of parts, the manufacturing time, and the manufacturing cost.
[Brief description of the drawings]
FIG. 1 is a perspective view of a vehicle structure according to an embodiment of the present invention. FIG. 2 is an enlarged perspective view of an inclined side structure, an inclined roof structure, and an inclined shoulder member as viewed from the inside of a vehicle body. Side view of vehicle structure showing coupling 【Explanation of symbols】
DESCRIPTION OF SYMBOLS 1 ... Vehicle structure, 2 ... Underframe, 3 ... Standard structure, 4 ... Inclined structure, 5 ... Side structure of standard structure 3, 7 ... Roof structure of standard structure 3, 8 ... Shoulder member of standard structure 3, 10 ... Inclined side structure of inclined structure 4, 11 ... Inclined shoulder member of inclined structure 4, 12 ... Inclined roof structure of inclined structure 4, 24 ... Head block

Claims

Between the structure of the top block of the high-speed railway vehicle in which the cross-sectional area in the vehicle body width direction is reduced toward the vehicle body front direction, and the standard structure having a uniform cross-sectional area in the vehicle body width direction along the vehicle body longitudinal direction, In a railway vehicle structure formed by connecting an inclined structure whose cross-sectional area in the vehicle body width direction is reduced toward the structure direction of the leading block, the standard structure is provided on a frame portion with parallel intervals between both sides. The cross-sectional shape of the vehicle body width direction coupled to the left and right side structures, the roof structure, the upper part of each side structure and the side part of the roof structure is an arc shape and is formed to have the same width in the longitudinal direction of the vehicle body. The inclined structure is connected to the side structure of the standard structure, and the left and right inclinations are provided in the frame portion where the distance between the side portions is gradually narrowed toward the head block direction. Side structure and roof structure of standard structure Combined with an inclined roof structure provided to be inclined so as to gradually narrow a distance from the underframe toward the head block direction, and a shoulder member of the standard structure, The cross-sectional shape in the vehicle body width direction coupled to the upper portion and the side portion of the inclined roof structure is an arc shape, and the width is gradually reduced toward the head block direction and the arc shape is directed toward the head block direction. An inclined shoulder member having a gradually increasing curvature in cross section, and the inclined shoulder member has a plurality of arcuate body-shaped bones arranged in a direction from the shoulder member of the standard structure toward the head block direction. And a plurality of linear vehicle body longitudinal bone members intersecting the plurality of vehicle body width direction bone members, and an outer plate is attached to the frame. On shoulder member The curvature of the vehicle body width direction bone member disposed in the head block direction is gradually larger than the curvature of the vehicle body width direction bone member to be joined, and the plurality of vehicle body longitudinal direction bone members are arranged in the head block direction Each frame is narrowed toward each other to form a skeleton by being coupled to each of the vehicle body width direction bone members, and the outer plate is gradually reduced in width toward the head block direction and circular along the skeleton. A railcar structure characterized by being curved in an arc and coupled to the frame .

The railway vehicle structure according to claim 1, wherein the side structure and the roof structure have a linear cross section in the vehicle body width direction.

The railway vehicle structure according to claim 1, wherein at least one of the side structure and the roof structure has a circular cross section in the vehicle body width direction.