Railway vehicle body structure and railway vehicle

Abstract

To manufacture an end body structure with reduced man-hours in a railway vehicle body structure having a skirt squeezing shape.SOLUTION: A railway vehicle body structure 9 includes an end outer plate 21 and a side outer plate 40. The end outer plate 21 includes reinforcement parts 215A, 215B in which an end part in the vehicle body width direction is formed to be bent in the vehicle body vertical direction along an inner surface of the adjacent side outer plate 40. A wainscot lower part 42 of the side outer plate 40 is formed to be curved toward the interior of the vehicle and forms a skirt squeezing shape in which the lower vehicle body width is made smaller than the upper vehicle body width. Corner columns 25A, 25B are integrally installed inside the reinforcement parts 215A, 215B along the vehicle body vertical direction in which the lower part is bent toward the interior of the vehicle corresponding to the curved portion of the side outer plate 40. The end outer plate 21 has missing parts 217A, 217B in which the reinforcement parts 215A, 215B are omitted in an area corresponding to the lower end part 43 from the wainscot lower part 42 of the side outer plate 40 so as to expose the corner columns 25A, 25B from the missing parts 217A, 217B.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a railway vehicle body structure having end skins and side skins, and to a railway vehicle. [Background technology]

[0002] Conventionally, railway car bodies having end skins and side skins have been known. For example, Patent Document 1 discloses a railway car body structure in which both ends of the end skin in the car body width direction are bent to follow the inner surfaces of the side skins to form reinforcing sections for joining the side skins, thereby facilitating joining the end skins and preventing rainwater from penetrating into the end skins. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4616766 Summary of the Invention [Problem to be solved by the invention]

[0004] Among railway car bodies, there is a tapered-bottom railway car body structure in which the lower portions of the side skin panels are bent toward the inside of the car to make the width of the lower car body smaller than the width of the upper car body in order to widen the passenger compartment. When the end body structure described in Patent Document 1 is applied to a tapered-bottom railway car body structure, when bending the reinforcing portions for joining the side skin panels in a direction along the inner surfaces of the side skin panels of the side structures adjacent to each other in the longitudinal direction on both sides of the end skin panels, it is not possible to bend the car body width direction ends of the end skin panels toward the inside of the car so as to follow the bent portions of the side skin panels.

[0005] In response to this, one possible method is to cut out the bent portion of the reinforcement part of the end outer panel that bends toward the inside of the vehicle, and replace it by welding a different outer panel member that is formed to fit along the bent portion of the side outer panel.

[0006] However, with this method, it is necessary to weld the other outer panel member so that it does not fall off the end panel while the vehicle is running or being washed. In this case, since the other outer panel member is the outermost surface of the end panel on the vehicle exterior, it is necessary to smooth the weld bead or give it a hairline finish. Therefore, this method requires a lot of man-hours to manufacture the end body structure.

[0007] The present invention has been made to solve the above-mentioned problems, and aims to provide a technology that enables the manufacture of end structures with fewer steps in a railway vehicle structure with a tapered bottom. [Means for solving the problem]

[0008] One aspect of the present invention is (1) a railway vehicle body structure comprising end panels and side panels, the end panels being formed by bending the widthwise ends of the car body to fit along the inner surface of the adjacent side panels, and having a reinforcing section joined to the side panels, wherein the lower parts of the side panels are bent toward the inside of the car, forming a tapered shape in which the lower car body width is smaller than the upper car body width, and the end panels have corner posts that are installed integrally inside the reinforcing section along the vertical direction of the car body and whose lower parts are bent toward the inside of the car in correspondence with the bent parts of the side panels, and the end panels have missing parts where the reinforcing section is missing in a region corresponding to the lower end from the bent part of the side panels.

[0009] In the railway car body structure configured as described above, the corner posts, which are integrally installed inside the reinforcing portion of the end skin, are exposed to the outside through a missing portion provided in the end skin. The reinforcing portion is missing from the bent portion of the side skin to its lower end, and the lower portion of the corner post is bent toward the interior of the car to correspond to the bent portion of the side skin. Therefore, the widthwise end of the end skin can be bent toward the interior of the car to correspond to the bent portion of the side skin by simply installing the corner posts integrally inside the reinforcing portion, without using a technique such as cutting out the portion of the reinforcing portion corresponding to the bent portion of the side skin and replacing it by welding a different skin member, and then smoothing or applying a hairline finish to the weld bead portion. Therefore, with the above configuration, the end skin structure can be manufactured with fewer steps for a tapered-bottom-shaped railway car body structure.

[0010] (2) In the railway vehicle body structure described in (1), it is preferable that the corner posts are formed by bending or extruding a plate material.

[0011] In a railway car body structure having the above-described configuration, it is easy to form corner posts that follow the inner surfaces of the reinforcing parts, and to bend the lower parts of the corner posts toward the inside of the car in accordance with the bending of the side outer panels.

[0012] (3) In the railway vehicle body structure described in (1) or (2), it is preferable that the corner post has a step against which the edge of the missing portion abuts, and that the step is the same size as the thickness of the end outer panel or the reinforcing portion.

[0013] In the railway car body structure having the above-described configuration, the position of the reinforcing portion and the position of the corner post exposed from the missing portion can be easily aligned, and the corner post can form a natural visible surface.

[0014] (4) In the railway vehicle body structure described in any one of (1) to (3), it is preferable that the corner posts are divided into an upper post member and a lower post member at a position where they start to bend toward the inside of the vehicle, and that the upper post member and the lower post member are welded together so that the lower post member bends relative to the upper post member in response to the bending of the side outer plate.

[0015] The railway car body structure with the above configuration allows for easy fabrication of corner posts that bend in response to bending of the side outer plates. Also, because the welding portion between the upper and lower pillar members is hidden by the end outer plate, the area where the weld bead on the corner post welds needs to be smoothed or hairline finished can be minimized, reducing the man-hours required for assembling the body structure.

[0016] (5) In the railway vehicle body structure described in any one of (1) to (4), it is preferable that the corner posts have the same surface treatment as the end outer panel on the portion exposed to the outside from the missing portion.

[0017] In the railway vehicle body structure having the above configuration, the boundary between the missing portion and the corner post is less noticeable.

[0018] (6) In the railway vehicle body structure described in any one of (1) to (5), it is preferable that a watertight treatment is applied along the edge of the missing portion.

[0019] The railway vehicle having the above configuration eliminates the gap between the missing portion and the corner post, thereby preventing rainwater, vehicle washing water, etc. from entering the interior of the vehicle.

[0020] Another aspect of the present invention is a railway vehicle comprising a railway vehicle body structure according to any one of (1) to (6). [Effects of the Invention]

[0021] Therefore, according to the present invention, a technique can be provided that allows for the manufacture of end structures with fewer steps in a railway vehicle body structure with a tapered bottom shape. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is an external perspective view of a railway vehicle that uses a railway vehicle bodyshell according to an embodiment of the present invention. [Figure 2] This is a view of the end bodywork from inside the vehicle. [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] 3 is a cross-sectional view of FIG. 2 taken along line B-B. [Figure 5] This is a front view of the end outer panel as seen from the outside of the vehicle. [Figure 6] FIG. 6 is an enlarged view of part C in FIG. 5. [Figure 7] FIG. 7 is a cross-sectional view of FIG. 6 taken along line F-F. [Figure 8] FIG. 7 is a cross-sectional view of FIG. 6 . [Figure 9] FIG. 7 is a cross-sectional view of FIG. 6 along HH. [Figure 10] FIG. 1 is a top view of the corner post. [Figure 11] This is an enlarged view of the area around the corner post bend. [Figure 12] This is a modified version of the reinforcement section and corner posts. [Figure 13] This is a modified version of the reinforcement section and corner posts. [Figure 14] This is a modified version of the corner post. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, embodiments of a railway car body structure and a railway car according to the present invention will be described with reference to the drawings. This specification discloses a railway car body structure and a railway car in which the widthwise ends of the end outer panels are joined to the side outer panels, the lower parts of the side outer panels are bent inward, and the width of the lower car body is narrower than the width of the upper car body.

[0024] <General configuration of railway vehicle 1> FIG. 1 is an external perspective view of a railway vehicle 1 that uses a railway vehicle body structure 9 according to an embodiment of the present invention. The railway vehicle 1 has bogies 10, 10 attached to the front and rear undersides of the railway vehicle body structure 9. The railway vehicle body structure 9 comprises a pair of end bodies 2, 2, a pair of side bodies 4, 4, a roof body structure 6, and an underframe 8. The railway vehicle body structure 9 has a tapered shape in which the width of the lower body is smaller than the width of the upper body, thereby expanding the interior space while satisfying the vehicle clearance.

[0025] Specifically, the underframe 8 is arranged so as to clear the vehicle gauge. A pair of side structures 4, 4 are arranged at both ends of the underframe 8 in the car body width direction. Doors 45 and windows 46 are attached to the side structure 4, and a side outer plate 40 is provided on the outside of the car. The side structure 4 and the side outer plate 40 are arranged straight in the vertical direction of the car body, and the lower wainscot plate 42 is bent toward the inside of the car. The lower wainscot plate 42 is an example of a "lower part of the side outer plate." Hereinafter, the bent portion where the lower wainscot plate 42 of the side outer plate 40 bends toward the inside of the car will be referred to as the "side outer plate bent portion P41."

[0026] The pair of end bodies 2, 2 are arranged at both ends of the underframe 8 in the car length direction. The end body 2 has a through hole 27 in the center and an end outer plate 21 is provided on the outside of the car. The end body 2 and the end outer plate 21 are arranged so that both ends in the car body width direction are straight in the up-and-down direction of the car body, corresponding to the side body structures 4 and side outer plates 40, and the lower parts of the ends in the car body width direction are bent (inclined) toward the inside of the car. The roof body structure 6 is arranged above the pair of end bodies 2, 2 and the pair of side bodies 4, 4. Hereinafter, the bent portions where the ends in the car body width direction of the end outer plate 21 (ends of plate materials 211A, 211B described later) are bent toward the inside of the car are referred to as "end outer plate bent portions P1A, P1B."

[0027] At the joint 90 where the end body structure 2 (end outer panel 21) and the side body structure 4 (side outer panel 40) are joined, corner posts 25 (25A, 25B) are provided along the vertical direction of the carbody. For example, the corner posts 25A, 25B are installed inside both ends of the end outer panel 21 in the carbody width direction, and their lower portions are bent toward the carbody interior side in correspondence with the side outer panel bend portion P41. The end of the end outer panel 21 in the carbody width direction is cut out in an area corresponding to the side outer panel bend portion P41 to the lower end 43 of the side outer panel 40, forming missing portions 217A, 217B. The corner posts 25A, 25B are exposed to the outside through the missing portions 217A, 217B and form the outermost surface of the end body structure 2 on the car exterior side. Hereinafter, the bent portions of the corner posts 25A, 25B where they bend toward the carbody interior side will be referred to as "corner post bend portions P11A, P11B."

[0028] <About the structure of the end structure 2> Fig. 2 is a view of the assembled end bodyshell 2 as seen from the inside of the vehicle. Fig. 3 is a cross-sectional view taken along line AA in Fig. 2. Fig. 4 is a cross-sectional view taken along line BB in Fig. 2. Fig. 5 is a front view of the end outer panel 21 as seen from the outside of the vehicle.

[0029] As shown in Figures 2 to 4, the end body structure 2 comprises an end outer panel 21, a shear plate 23 provided on the interior side of the end outer panel 21, a plurality of reinforcing members provided on the interior side of the shear plate 23, a pair of corner posts 25A, 25B, and an upper frame 26.

[0030] 2, the multiple reinforcing members include a pair of end posts 224, 225, a lintel 222, a door pocket crosspiece 221A, a door stop crosspiece 221B, and cross beams 223A, 223B. The shear plate 23 has mounting holes for mounting multiple reinforcing members and components, as well as multiple large and small openings, and is used as an installation reference that indicates the mounting positions of the reinforcing members and components.

[0031] 5, the end outer plate 21 is formed by combining three plate materials 211A, 211B, and 212 on both sides and at the upper center in consideration of formability, workability, etc. An opening 213 for forming the through hole 27 is provided in the center.

[0032] 3, end outer plate 21 (plate material 211A, 211B) has reinforcing portions 215A, 215B and reinforcing portions 216A, 216B bent toward the vehicle interior in the longitudinal direction of the car body. Reinforcing portions 216A, 216B are provided along the edges of through-hole 27 in the vehicle width direction. Reinforcing portions 215A, 215B are provided by bending both ends (plate material 211A, 211B) of end outer plate 21 in the vehicle width direction toward the vehicle interior (toward the side structure) along the vertical direction of the car body.

[0033] 5, the corner posts 25A, 25B are formed by bending or extruding plate material and are installed so as to fit along the inner surfaces of the end outer panels 21 (plate materials 211A, 211B) and the inner surfaces of the reinforcing portions 215A, 215B. The upper ends of the corner posts 25A, 25B are connected by an arch-shaped upper frame 26. The upper frame 26 is installed on the interior side of the upper end of the end outer panel 21.

[0034] <Specific configuration of the reinforcing portion 215 and the corner post 25> The configuration of the reinforcing portion 215 and the corner post 25 will be described in detail. Figure 6 is an enlarged view of part C in Figure 5. Figure 7 is a cross-sectional view taken along line FF in Figure 6. Figure 8 is a cross-sectional view taken along line GG in Figure 6. Figure 9 is a cross-sectional view taken along line HH in Figure 6. Figure 10 is a top view of the corner post 25. Figure 11 is an enlarged view of the vicinity of the corner post bending portion P11 of the corner post 25. Below, unless there is a particular need to distinguish between them, the suffixes "A" and "B" of each reference numeral will be omitted as appropriate. Furthermore, the watertight treatment portion 32 shown in Figures 6 and 9 is highlighted for ease of viewing.

[0035] 6 and 7, the reinforcing portion 215 includes an energy absorbing portion 2152 and a contact portion 2153. The contact portion 2153 is provided perpendicular to the end outer plate 21 (plate material 211) so as to fit along the inner surface of the side outer plate 40. The energy absorbing portion 2152 is provided so as to be inclined at approximately the same angle with respect to the end outer plate 21 and the contact portion 2153, and absorbs collision energy during an offset collision in which one of two passing cars derails and collides with a part of the other car, thereby preventing deformation of the railway car body structure 9 toward the interior of the car.

[0036] 5 and 6, the end panel 21 has a missing portion 217 where the reinforcing portion 215 is missing from the end panel bend portion P1 to the lower end portion P2. As shown in Fig. 6, the corner post 25 is divided into an upper post member 251 and a lower post member 252 at a position corresponding to the upper edge of the missing portion 217, in other words, at the position where the lower portion begins to bend toward the vehicle interior.

[0037] As shown in Figures 7 to 9, the upper pillar member 251 and the lower pillar member 252 are formed by bending plate material so as to be joined to the inner surface of the end outer panel 21 and the inner surface of the reinforcing portion 215. The upper pillar member 251 and the lower pillar member 252 include first portions 2511, 2521, second portions 2512, 2522, third portions 2513, 2523, and fourth portions 2514, 2524. In a plan view, the corner pillar 25 has the third portions 2513, 2523 provided in a direction perpendicular to the first portions 2511, 2521. The second portions 2512, 2522 are provided so as to incline at approximately the same angle relative to the first portions 2511, 2521 and the third portions 2513, 2523, respectively. The fourth portions 2514 and 2524 are bent at approximately a right angle to the third portions 2513 and 2523.

[0038] The upper pillar member 251 and the lower pillar member 252 have approximately the same plate thickness. In this embodiment, the average plate thickness of the upper pillar member 251 and the lower pillar member 252 is approximately twice the average plate thickness of the end outer plate 21 or the reinforcing portion 215. The plate thickness of the corner pillar 25 may be set appropriately depending on conditions such as strength. For example, the plate thickness of the upper pillar member 251 and the lower pillar member 252 may be different, such as making the plate thickness of the lower pillar member 252 thicker than the plate thickness of the upper pillar member 251.

[0039] As shown in Figure 11, the upper post member 251 and the lower post member 252 are butt-welded to form a single corner post 25. The upper post member 251 is provided straight from its upper end to its lower end. In contrast, the lower post member 252 is provided straight, but its upper end is bent to correspond to the side shell panel bending portion P41 of the side shell panel 40, forming a corner post bending portion P11. Therefore, by simply butt-welding the lower end surface of the upper post member 251 and the upper end surface of the lower post member 252, it is possible to easily manufacture a corner post 25 that bends to correspond to the side shell panel bending portion P41 of the side shell panel 40.

[0040] 10 and 11 , the lower pillar member 252 is joined to the upper pillar member 251 with the second portion 2522 and the third portion 2523 shifted toward the vehicle exterior in the carbody width direction relative to the second portion 2512 and the third portion 2513 of the upper pillar member 251 by the thickness of the reinforcing portion 215. The first portions 2511, 2521 and the fourth portions 2514, 2524 have the same positions of their outward facing surfaces. As a result, the corner pillar 25 has a step 256 corresponding to the plate thickness of the reinforcing portion 215 at the corner pillar bend portion P11, formed by the upper end surface 2522a of the second portion 2522 and the upper end surface 2523a of the third portion 2523.

[0041] As shown in Fig. 6, the step 256 of the corner post 25 abuts against the upper edge of the missing portion 217. Then, as shown in Figs. 7 and 8, the first portion 2511 of the upper post member 251 and the first portion 2521 of the lower post member 252 of the corner post 25 abut against the inner surface of the end outer panel 21 on the vehicle exterior side, and the second portion 2512 and the third portion 2513 of the upper post member 251 abut against the inner surface of the energy absorbing portion 2152 and the inner surface of the abutting portion 2153 of the reinforcing portion 215. In this state, the corner post 25 is joined to the end outer panel 21 and the reinforcing portion 215.

[0042] 6 and 8, the corner post 25 has a step 256 that aligns the positions of the second portion 2522 and the third portion 2523 exposed from the notched portion 217 with the positions of the energy absorbing portion 2152 and the abutting portion 2153 of the reinforcing portion 215. Therefore, the corner post 25 is exposed from the notched portion 217 with almost no step between it and the end outer panel 21 and the reinforcing portion 215, forming a natural visible surface. Note that the fourth portions 2514, 2524 do not abut against the end outer panel 21 or the reinforcing portion 215, but they improve the bending strength of the upper post member 251 and the lower post member 252.

[0043] Here, the butt-welded surfaces between the upper pillar member 251 and the lower pillar member 252 are hidden behind the end outer panel 21 and the reinforcing portion 215. Therefore, the butt-welded surfaces do not require post-processing such as smoothing or hairline finishing, or the area where smoothing or hairline finishing is performed can be minimized, thereby reducing the number of steps required to assemble the body structure.

[0044] The surface of the lower pillar member 252 located on the outside of the vehicle body is subjected to the same surface treatment as the end outer plate 21, making the boundary between the end outer plate 21 and the corner post 25 less noticeable. The surface treatment is applied to at least the portion exposed to the outside from the missing portion 217. The surface treatment is, for example, a hairline finish. The hairline should be formed in the same direction as the hairline formed on the end outer plate 21. Note that the surface treatment may be applied by a method other than the hairline finish, such as painting.

[0045] As shown in Figures 6 and 9, the end outer panel 21 is provided with a watertight treatment 32 by fillet welding the edge of the missing portion 217 to the corner post 25, thereby preventing rainwater, cleaning water, and the like from penetrating into the interior of the vehicle through the gap between the missing portion 217 and the corner post 25. Fillet welding is an example of a "watertight treatment." Note that the watertight treatment may be performed by a method other than fillet welding, such as applying a sealant.

[0046] <Manufacturing procedure for railway vehicle body structure 9> The end body structure 2 is formed by forming the plate materials 211A, 211B, and 212 of the end outer plate 21 into a predetermined shape by press working or the like. The plate materials 211A and 211B are formed with reinforcing portions 215A and 215B by bending. Furthermore, the plate materials 211A and 211B are provided with missing portions 217A and 217B by punching, cutting, or the like. The end outer plate 21 is assembled by connecting the plate materials 211A, 211B, and 212 by welding.

[0047] The corner posts 25A, 25B are manufactured by forming an upper post member 251 and a lower post member 252 into a predetermined shape by pressing a plate material or by extrusion molding. The surface of the lower post member 252 facing the outside of the car is surface treated. The upper post member 251 and the lower post member 252 are butt-welded. The corner posts 25A, 25B are welded to both ends of the end outer panel 21 in the car body width direction.

[0048] For example, the end outer panel 21 and the corner post 25 are positioned in the width direction of the carbody by abutting the first portions 2511 and 2521, the second portion 2512, and the third portion 2513 of the corner post 25 against the inner surface of the end outer panel 21, the energy absorbing portion 2152 of the reinforcing portion 215, and the abutment portion 2153, respectively. Furthermore, the end outer panel 21 and the corner post 25 are positioned in the up-down direction of the carbody by abutting the step 256 against the upper edge of the missing portion 217. In this state, the end outer panel 21 and the corner post 25 are joined by welding. As a result, the second part 2522 and the third part 2523 of the lower column member 252, which have been surface treated in the same way as the end outer panel 21, are exposed from the missing portion 217 of the end outer panel 21 so as to be flush with the energy absorption portion 2152 and the abutment portion 2153 of the reinforcing portion 215, forming a continuous visible surface from the reinforcing portion 215.

[0049] Then, the edge of the notched portion 217 is fillet welded to the corner post 25 exposed from the notched portion 217 to form the watertight treatment portion 32.

[0050] The upper frame 26 is welded to the upper end P3 of the end outer plate 21 to which the corner posts 25A, 25B are joined. Furthermore, for the end body structure 2, the shear plate 23 is formed into a predetermined shape by press working or the like, and openings and mounting holes are formed using an NC processing machine or the like. Furthermore, each reinforcing member and each part is produced and welded to the shear plate 23. Then, the shear plate 23 to which each reinforcing member and each part is welded is joined to the end outer plate 21 by welding. In this way, the end body structure 2 is assembled.

[0051] The side structure 4 is formed by assembling side outer plates 40, frame members, etc., and is fitted with doors 45 and windows 46. The railway vehicle body structure 9 has the end structure 2 joined to the end of the underframe 8 in the car length direction, and the side structure 4 joined to both ends of the underframe 8 in the car width direction.

[0052] The end panel 21 has its widthwise end bent toward the inside of the vehicle in correspondence with the side panel bending portion P41 of the side panel 40 by the abutment portion 2153 of the reinforcing portion 215 and the third portion 2523 of the corner post 25 exposed from the missing portion 217, so that the side panel 40 is joined so as to prevent rainwater, vehicle washing liquid, etc. from entering the inside of the vehicle.

[0053] Furthermore, the positions of the outer surfaces of the first portion 2521 and the second portion 2522 of the corner post 25 exposed from the missing portion 217 of the end outer panel 21 are aligned with the positions of the outer surfaces of the end outer panel 21 and the energy absorbing portion 2152, so that the joint 90 has an aesthetic appearance. After the end bodyshell 2 and the side bodyshell 4 are joined to the underframe 8, the roof bodyshell 6 is joined to the end bodyshell 2 and the side bodyshell 2.

[0054] <Summary> As described above, in the railway car body structure 9 of this embodiment, the corner posts 25, which are integrally installed inside the reinforcing portion 215 of the end outer plate 21, are exposed to the outside through the missing portion 217 provided in the end outer plate 21. The reinforcing portion 215 is missing in the region from the side outer plate bending portion P41 to the lower end 43 of the side outer plate 40, and the lower portion of the corner post 25 is bent toward the car interior side in correspondence with the side outer plate bending portion P41 of the side outer plate 40. Therefore, the car width direction end of the end outer plate 21 can be bent at its lower portion toward the car interior side in correspondence with the side outer plate bending portion P41 of the side outer plate 40 and joined to the side outer plate 40 simply by integrally installing the corner posts inside the reinforcing portion 215, without using a method of cutting out the portion of the reinforcing portion corresponding to the side outer plate bending portion P41 and replacing it by welding a different outer plate member and smoothing or hairline finishing the weld bead portion. Therefore, according to this embodiment, the end body structure 2 can be manufactured with fewer steps in the tapered railcar body structure 9. Also, the end outer plate 21 and the side outer plate 41 can be joined easily.

[0055] The present invention is not limited to the above-described embodiment and can be applied in various ways. For example, as in the reinforcing portion 215x and corner post 25x shown in Figures 12 and 13, the energy absorbing portion 2152 may be omitted and the abutting portion 2153 may be directly connected to the end outside plate 21x, or the second portions 2512 and 2522 of the upper post member 251x and the lower post member 252x may be omitted and the third portions 2513 and 2523 may be directly connected to the first portions 2511 and 2521.

[0056] For example, the corner posts 25 may be formed from hollow pillars with a rectangular cross section. However, by forming the corner posts 25 by bending a plate material as in the above embodiment, it is easy to form the corner posts 25 so that they fit along the inner surface of the reinforcement portion, or to bend the lower portions of the corner posts 25 toward the vehicle interior in accordance with the side-outside-panel bending portion P41 where the side-outside panel 40 bends toward the vehicle interior. In addition, the weight of the corner posts 25 can be reduced while ensuring the strength of the corner posts 25 against offset collisions.

[0057] For example, as in the corner post 25y shown in FIG. 14 , the step 256 shown in FIG. 11 may be omitted. In this case, the portion of the corner post 25y exposed to the outside through the missing portion 217 is lower than the reinforcing portion 215, but the step is small, equivalent to the thickness of the reinforcing portion 215, and therefore inconspicuous. Furthermore, providing a watertight treatment 32 between the missing portion 217 and the corner post 25y can prevent the intrusion of rainwater, vehicle wash water, and the like. However, as in the above embodiment, by providing the step 256, against which the upper edge of the missing portion 217 abuts, with the same size as the thickness of the end outer panel 21 or the reinforcing portion 215 in the corner post 25, the position of the reinforcing portion 215 and the position of the corner post 25 exposed through the missing portion 217 can be aligned, allowing the corner post 25 to form a natural visible surface. Furthermore, even if no watertight treatment is performed on the joint surfaces between the reinforcing portion 215 and the corner post 25 and the side outer panel 40, the intrusion of rainwater and the like into the interior of the vehicle can be prevented.

[0058] For example, as shown in Figure 14, a corner post 25y including a first portion 25ya, a second portion 25yb, a third portion 25yc, and a fourth portion (not shown) may be constructed as a single part. However, as in the above embodiment, the corner post 25 is divided into an upper post member 251 and a lower post member 252 at the position where it begins to bend toward the interior of the vehicle. The upper post member 251 and the lower post member 252 are welded together so that the lower post member 252 bends relative to the upper post member 251 in response to the bending of the side skin 40. This simplifies the manufacture of a corner post 25 that bends in response to the side skin bending portion P41 of the side skin 40. Furthermore, the number of steps required for assembling the body structure can be reduced. When constructing the corner post 25 from a single part, a step 256 may be provided at the corner post bending portion P11.

[0059] For example, the surface treatment may be omitted. However, by applying the same surface treatment as the end panel to the portion exposed to the outside from the missing portion 217, as in the case of the corner post 25 in the above embodiment, the boundary between the reinforcing portion 215 and the corner post 25 becomes less noticeable, and the appearance of the joint 90 is improved.

[0060] For example, the watertight treatment may be omitted. However, by performing watertight treatment such as fillet welding along the notched portion 217, as in the corner post 25 of the above embodiment, it is possible to eliminate the gap between the notched portion 217 and the corner post 25 and prevent rainwater, vehicle wash water, and the like from infiltrating into the interior of the vehicle. For example, if the watertight treatment is fillet welding, the watertight treatment 32 can be maintained semi-permanently and the infiltration of rainwater and the like can be prevented.

[0061] The manufacturing procedure for the railway car body structure 9 described in the above embodiment is an example, and the manufacturing procedure may be changed within a range that does not contradict the essence of the present invention. The fourth portions 2514, 2524 of the corner posts 25 may be omitted. [Explanation of symbols]

[0062] 1. Railway vehicles 9 Railway vehicle body structure 21 End panel 25A,25B,25 Corner pillar 40 Side skin 42 Lower part of waist board 43 Lower end 215A,215B,215 Reinforcement part 217A, 217B, 217 Missing parts

Claims

1. A railway vehicle body structure comprising an end outer plate and a side outer plate, wherein the end outer plate is provided by bending an end portion in the car body width direction so as to follow the inner surface of the adjacent side outer plate, and comprising a reinforcing portion joined to the side outer plate, The lower portion of the side outer plate is bent toward the inside of the vehicle, forming a tapered shape in which the width of the lower body is smaller than the width of the upper body, a corner post that is integrally installed inside the reinforcing portion along the vertical direction of the carbody and whose lower portion is bent toward the inside of the car in correspondence with the bent portion of the side outer plate; the end outer plate has a missing portion where the reinforcing portion is missing in a region corresponding to a lower end portion from a bent portion of the side outer plate; A railway vehicle body characterized by:

2. The railway vehicle body structure according to claim 1, The corner posts are formed by bending or extruding a plate material. A railway vehicle body characterized by:

3. The railway vehicle body structure according to claim 1 or 2, The corner post has a step against which an edge of the missing portion abuts, The step has the same size as the thickness of the end outer plate or the reinforcing portion. A railway vehicle body characterized by:

4. The railway vehicle body structure according to any one of claims 1 to 3, The corner pillar is divided into an upper pillar member and a lower pillar member at a position where the corner pillar starts to bend toward the vehicle interior, The upper pillar member and the lower pillar member are welded together so that the lower pillar member bends relative to the upper pillar member in response to bending of the side outer plate. A railway vehicle body characterized by:

5. The railway vehicle body structure according to any one of claims 1 to 4, The corner posts have a surface treatment similar to that of the end outer panel on the portion exposed to the outside through the missing portion. A railway vehicle body characterized by:

6. The railway vehicle body structure according to any one of claims 1 to 5, A watertight treatment is applied along the edge of the missing portion; A railway vehicle body characterized by:

7. A railway vehicle comprising the railway vehicle body structure according to any one of claims 1 to 6.

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