JP2023022366A - rail vehicle - Google Patents

Abstract

To provide a rail vehicle which has a firm body structure that makes deformation of its constituting member small while maintaining the air tightness.SOLUTION: A railway vehicle has a roof body structure and side body structures connected to both end parts in a width direction of the roof body structure, and comprises a first machine coupling part to couple the first interior side plate of the roof body structure to the second interior side plate extension part of the side body structure, a second machine coupling part to couple a first end rib of the roof body structure to a second end rib of the side body structure and a first weld zone to weld a first exterior side plate of the roof body structure to a second exterior side plate of the side body structure.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present invention relates to a rail vehicle, and more particularly to a rail vehicle provided with a structure.

A railway vehicle, which is a rail vehicle, basically has an underframe that forms a floor surface, side structures that are erected at both ends of the underframe in the width direction, and erected ends at both ends of the underframe in the longitudinal direction. and a roof structure mounted on the upper end of the side structure and the end structure.

A railway vehicle structure is constructed by connecting these structures, and local deformation may occur at the connecting portion of each structure. Therefore, Patent Literature 1 discloses a railway car body structure that can suppress local deformation that occurs at the connection portion and can reduce manufacturing man-hours.

In the configuration of Patent Document 1, the joint between the vehicle-outside end face plate of the roof structure and the vehicle-outside second face plate of the side structure is melt-welded. The connecting portion between the second face plate on the inner side of the roof structure and the end face plate on the inner side of the side structure is connected by mechanical fastening. As a result, only the connections on the outside of the car that require watertightness are welded by fusion welding with a large heat input, and the connections on the inside of the car are connected by mechanical fastening means with an extremely small amount of heat input. It has a feature that can suppress the deformation of the material.

JP 2012-17043 A

On the other hand, the thickness of the members constituting the rail vehicle structure used in high-speed railroad vehicles is reduced in order to reduce the weight. Furthermore, since the rail vehicle structure undergoes large fluctuations in pressure outside the vehicle when passing through a tunnel, the rail vehicle structure is kept airtight to suppress fluctuations in the pressure inside the vehicle caused by fluctuations in the pressure outside the vehicle.

If the structure is assembled by fusion welding with a large heat input in order to maintain the airtightness of the rail vehicle structure, there is a high possibility that the joints where the plate thickness is reduced to reduce weight will be greatly deformed by the heat of welding. Furthermore, there has been a tendency for the manufacturing man-hours for correcting this deformation to increase.

In the configuration of Patent Document 1, a large amount of heat input is required because the connection is performed by fusion welding on the outside of the vehicle in contrast to the mechanical fastening on the inside of the vehicle. For this reason, deformation may occur when using a member having a small thickness due to weight reduction.

SUMMARY OF THE INVENTION In view of the problems described above, it is an object of the present invention to provide a railway vehicle equipped with a strong body structure capable of reducing deformation of members while maintaining airtightness.

In order to achieve the above object, one representative railway vehicle of the present invention has a roof structure and side structures connected to both ends of the roof structure in the width direction. 1 outer side plate, a first inner side plate, a plurality of first connection ribs connecting the first outer side plate and the first inner side plate, the first outer side plate and the first inner side plate and a first end rib that connects the widthwise ends of the first vehicle interior side plate and a part of the first connection rib are removed, and the side structure is connected to the second vehicle exterior side. a face plate, a second vehicle interior side plate, a plurality of second connection ribs connecting the second vehicle exterior side plate and the second vehicle interior side plate, and a width direction of the second vehicle exterior side plate and the second vehicle interior side plate. and a second inner side plate extending portion extending from the second end rib in a direction along the first inner side plate, and the second inner side A part of the face plate and the second connecting rib is removed, and a first mechanical fastening portion for fastening the first interior side plate and the second interior side plate extending portion, the first end rib and the It has a second mechanical fastening portion that fastens the second end rib, and a first welding portion that welds the first vehicle outer side plate and the second vehicle outer side plate.

Advantageous Effects of Invention According to the present invention, in a rail vehicle, it is possible to reduce deformation of members while maintaining airtightness and to provide a strong body structure.
Problems, configurations, and effects other than those described above will be clarified by the following embodiments.

FIG. 1 is a side view showing one embodiment of the railcar of the present invention. FIG. 2 is a longitudinal cross-sectional view (AA cross section in FIG. 1) showing an embodiment of the railway vehicle of the present invention. FIG. 3 is a perspective view showing a structural example of the roof structure and the side structure of the railway vehicle of the present invention. FIG. 4 is a cross-sectional view (corresponding to section B in FIG. 2) showing a configuration example of a connecting portion between the roof structure and the side structure of the railway vehicle of the present invention. FIG. 5 is a cross-sectional view (corresponding to section C in FIG. 2) showing a configuration example of a connecting portion between a side structure, a side structure lower portion, and a side structure connecting portion of a railway vehicle according to the present invention.

Embodiments for carrying out the present invention will be described below with reference to the drawings. First, each direction for explanation is defined. The longitudinal direction or rail direction of a railway vehicle is defined as the x direction, the width direction or the sleeper direction of the railway vehicle is defined as the y direction, and the height direction of the railway vehicle is defined as the z direction. be.

Rail vehicles are vehicles that are operated along the laid tracks, and include railway vehicles, monorail vehicles, streetcars, new transportation vehicles, and the like. In the embodiments of the present invention described below, as a representative example of a rail vehicle, an embodiment using a railroad vehicle will be described. The following embodiments are also applicable to rail vehicles other than rail vehicles.

(Overall composition)
FIG. 1 is a side view showing one embodiment of the railway vehicle of the present invention, and FIG. 2 is a longitudinal cross-sectional view (AA cross section in FIG. 1) showing one embodiment of the railway vehicle of the present invention. be.

The railway vehicle 1 has a body structure 3 forming a hexahedron, and a bogie 2 having wheels that support the body structure 3 under both ends in the x direction of the body structure 3 and roll on a track (rail) 90 . ing. The structure 3 has a structure bottom 8, an end structure 9, a side structure lower part 7, a side structure 6, and a roof structure 5 to form a hexahedron.

The structure bottom 8 forms the bottom of the structure 3 (lower side in the z direction). The side structure lower parts 7 are erected on both ends of the structure bottom part 8 in the y direction, and form the lower sides of both side surfaces of the structure 3 in the y direction. The side structure 6 is connected to the upper end portion of the side structure lower portion 7 and forms the upper sides of both side surfaces of the structure 3 in the y direction. The end structures 9 are erected at both ends in the longitudinal direction (x direction) of the structure bottom 8 and form both side surfaces of the structure 3 in the x direction. The roof structure 5 is mounted on the upper ends of the side structures 6 and the end structure 9 and is formed to cover the upper side in the z direction. In addition, a partition wall 69 is provided substantially parallel to the end structure 9 to separate a deck portion having an entrance for passengers getting on and off from a cabin portion having seats. A door 76 is provided.

Furthermore, the structure 3 has a side structure connecting portion 12 . The side structure connecting portion 12 extends along the y direction at a height position substantially equal to the height of the platform 92 . At this time, the side structure connecting portions 12 connect a pair of left and right side structures 6 provided on both sides in the y direction, and are discretely provided in plurality along the x direction. At the same time, the side structure connecting portion 12 can also connect a pair of left and right side structure lower portions 7 provided on both sides in the y direction. Therefore, the main function of the side structure connecting portion 12 is to mechanically connect the lower end portion of the side structure 6 and the upper end portion of the side structure lower portion 7 . As a result, the side structure 6 extends above the side structure connecting portion 12 and the side structure lower portion 7 extends below the side structure connecting portion 12 . In addition to the functions described above, the side structure connecting portion 12 shown in FIG. It is.

An upper floor 72 is provided on the upper surface of the side structure connecting portion 12 , and a seat 70 and the like are placed on the upper surface of the upper floor 72 . An area surrounded by the structure bottom 8, the side structure lower part 7, and the upper floor 72 including the side structure connection part 12 is provided with various electrical components such as main circuit devices, auxiliary power supply units, and air compressors. It should be noted that the structure bottom portion 8 and the side structure lower portion 7 do not need to be provided in the truck 2 portion.

FIG. 3 is a perspective view showing a structural example of the roof structure and the side structure of the railway vehicle of the present invention. The roof structure 5 has a first vehicle exterior side plate 5a, a first vehicle interior side plate 5b, and a first connection rib 5c connecting these face plates. Similarly, the side structure 6 has a second exterior side plate 6a, a second interior side plate 6b, and a second connecting rib 6c connecting these face plates.

A portion of the first inner side plate 5b and the first connecting rib 5c of the roof structure 5, and a portion of the second inner side plate 6b and the second connecting rib 6c of the side structure 6 are cut for weight reduction. are removed. This configuration can be similarly applied to the side structure lower portion 7 as well. Note that FIG. 3 shows an example in which the first inboard side plate 5b and the first connection rib 5c and the second inboard side plate 6b and the second connection rib 6c are largely removed. And it is not necessary to remove the connection ribs on a large scale, and the vehicle interior side plate and the connection ribs within the range where the second mechanical fastening portion M2 can be fastened may be removed. The same applies to the side structure lower portion 7 as well.

(Structure of connection between roof structure and side structure)
FIG. 4 is a cross-sectional view (corresponding to section B in FIG. 2) showing a configuration example of a connecting portion between the roof structure and the side structure of the railway vehicle of the present invention. A configuration example of the connecting portion between the roof structure 5 and the side structure 6 will be described with reference to FIG. Although FIG. 4 shows the configuration of the connecting portion on the right side in the y direction, the connecting portion on the left side in the y direction can also have the same configuration symmetrically.

The roof structure 5 includes a first vehicle exterior side plate 5a covering the vehicle exterior, a first vehicle interior side plate 5b provided on the vehicle interior, a plurality of first connection ribs 5c connecting these face plates, and y and a first end rib 5d that connects the ends in the direction (ends on the side structure 6).

The side structure 6 includes a second vehicle exterior side plate 6a that covers the vehicle exterior, a second vehicle interior side plate 6b that is provided on the vehicle interior, a plurality of second connection ribs 6c that connect these face plates, and y and a second end rib 6d1 that connects the ends in the direction (the ends on the side of the roof structure 5). Further, the side structure 6 has a second interior side plate extending portion 6bh configured to extend the second interior side plate 6b from the end of the second end rib 6d1 on the interior side of the vehicle. When the y-direction end of the side structure 6 abuts the y-direction end of the roof structure 5, the outer surface of the second inner side plate extending portion 6bh is aligned with the first inner side plate 5b of the roof structure 5. is configured so as to overlap with the inner surface of the vehicle.

The roof structure 5 and the side structure 6 are joined by the first welding part W1 after being fastened by the first mechanical fastening part M1 and the second mechanical fastening part M2.

The first mechanical fastening portion M1 fastens the first interior side plate 5b of the roof structure 5 and the second interior side plate extending portion 6bh of the side structure 6, which overlap each other. The first mechanical fastening portion M1 is composed of, for example, bolts and nuts, and can be fastened by opening holes in the fastening portions of the first vehicle interior side plate 5b and the second vehicle interior side plate extending portion 6bh. Also, in the example of FIG. 4, two first mechanical fastening portions M1 are used in the y-direction. Therefore, the length of the second vehicle interior side plate extended portion 6bh is also secured.

The second mechanical fastening portion M2 fastens the first end rib 5d of the roof structure 5 and the second end rib 6d1 of the side structure 6 that face each other. The second mechanical fastening portion M2 is composed of, for example, bolts and nuts, and can be fastened by opening holes in the first end rib 5d and the second end rib 6d1 of the fastening portion.

The first welded portion W1 joins the butted portion between the first outer side plate 5a of the roof structure 5 and the second outer side plate 6a of the side structure 6. As shown in FIG. The first weld W1 can be performed by fusion welding, and is welded seamlessly along the x direction. By this, airtightness can be maintained. In addition, since the connection strength as a whole increases due to the configuration of the first mechanical fastening portion M1 and the second mechanical fastening portion M2, the first welded portion W1 can be configured without a large heat input in fusion welding.

In the roof structure 5, the first mechanical fastening portion M1 and the second mechanical fastening portion M2 are formed by the first inner side plate 5b, the first end rib 5d, and the first connecting rib 5c1. It is fastened within a triangular cross-sectional shape (cross-sectional shape crossing the x direction). Here, the first connecting rib 5c1 is the first connecting rib 5c closest to the first end rib 5d of the roof structure 5. As shown in FIG. In FIG. 4, the first connecting rib 5c1 extends from the vicinity of the connecting portion between (the y-direction end of) the first outer side plate 5a and the first end rib 5d (the outer end thereof) to the first inner side plate 5b. It is obliquely formed in the direction away from the first end rib 5d.

In the side structure 6, the second mechanical fastening portion M2 has a substantially triangular cross-sectional shape ( intersecting cross-sectional shapes). Here, the second connecting rib 6c1 is the second connecting rib 6c closest to the second end rib 6d1 of the side structure 6. As shown in FIG. In FIG. 4, the second connecting rib 6c1 extends from the vicinity of the connecting portion between (the y-direction end of) the second inner side plate 6b and the second end rib 6d1 (the end of the inner side) of the second outer side plate 6a. toward the second end rib 6d1.

In addition to the above, the second connecting rib 6c1 extends from the vicinity of the connection between (the y-direction end of) the second outer side plate 6a and the second end rib 6d1 (the outer end thereof) of the second inner side plate 6b. It may also be formed obliquely in a direction away from the second end rib 6d1. In this case, the second mechanical fastening portion M2 is fastened in a substantially triangular shape formed by the second inner side plate 6b, the second end rib 6d1, and the second connecting rib 6c1 in the side structure 6. be done.

The second mechanical fastening portion M2 can be fastened using a tool or the like from the inside of the vehicle at the joint portion between the roof structure 5 and the side structure 6 . As shown in FIG. 3, this is part of the first inner side plate 5b and first connecting rib 5c of the roof structure 5 and part of the second inner side plate 6b and second connecting rib 6c of the side structure 6. This is possible because a gap is formed by removing the part.

A case where an airtight load 96 from the inside acts on the connecting structure between the roof structure 5 and the side structure 6 shown in FIG. 4 will be described. When the airtight load 96 acts on the connecting portion between the roof structure 5 and the side structure 6 in a direction to pull the two structures apart, the first mechanical fastening portion M1 suppresses slippage in the shear direction, and at the same time, the second The force in the direction of pulling the roof structure 5 and the side structure 6 apart is resisted by the axial force generated in the second mechanical fastening portion M2 and the first welded portion W1.

Furthermore, since the portions to be fastened by the first mechanical fastening portion M1 and the second mechanical fastening portion M2 have a substantially triangular cross-sectional shape that intersects the x-direction of the roof structure 5 and the side structure 6, these joints The part is a robust structure with high rigidity. Therefore, it effectively resists the deformation and the like caused by the airtight load 96, thereby suppressing deformation of the joint between the roof structure 5 and the side structure 6, and effectively suppressing generation of excessive stress accompanying the deformation. can.

With the above-described structure, the rail vehicle structure, which is composed of members with small plate thickness dimensions in order to run at high speed and promote weight reduction, is kept airtight while suppressing the large heat input associated with fusion welding. It is possible to reduce the deformation of the members constituting the. Furthermore, the number of man-hours required for correcting the deformation can be reduced. Furthermore, it is possible to provide a strong and lightweight rail vehicle structure that can withstand an airtight load.

(Structure of connection between side structure, side structure lower part, and side structure reinforcing part)
FIG. 5 is a cross-sectional view (corresponding to section C in FIG. 2) showing a configuration example of a connecting portion between a side structure, a side structure lower portion, and a side structure connecting portion of a railway vehicle according to the present invention. A configuration example of the connecting portion between the side structure 6, the side structure lower portion 7, and the side structure connecting portion 12 will be described with reference to FIG. Although FIG. 5 shows the configuration of the connection portion on the right side in the y direction, the configuration of the connection portion on the left side in the y direction can be symmetrically similar.

The side structure 6 includes a second vehicle exterior side plate 6a that covers the vehicle exterior side, a second vehicle interior side surface plate 6b that is provided on the vehicle interior side, a plurality of second connection ribs 6c that connect these face plates, and a second vehicle exterior side plate. 6a and a second end rib 6d2 connecting the lower end of the second inner side plate 6b in the z direction.

The lower side structure 7 includes a third vehicle exterior side plate 7a covering the vehicle exterior side, a vehicle interior side surface plate 7b provided on the vehicle interior side, a plurality of third connection ribs 7c connecting these face plates, and a third vehicle exterior side plate 7b. It has a face plate 7a and a third end rib 7d connecting upper ends in the z direction of the third vehicle interior side plate 7b. In FIG. 5, the distance between the second outer side plate 6a and the second inner side plate 6b of the side structure 6 and the distance between the third outer side plate 7a and the third inner side plate 7b of the lower side structure 7 are the same. example is shown.

The side structure connecting portion 12 connects the lower end portion of the side structure 6 and the upper end portion of the side structure lower portion 7 . The side structure connection portion 12 includes an upper plate 12a arranged on the upper side, a lower plate 12b arranged on the lower side substantially parallel to the upper plate 12a, and a plurality of connection ribs 12c connecting these face plates. , and a fourth end rib 12dh extending in the z direction at the end of the side structure connecting portion 12 in the y direction. The fourth end rib 12dh has a z-direction dimension larger than the z-direction dimension from the top plate 12a to the bottom plate 12b. The fourth end rib 12dh has an upper end rib 12dh1 that protrudes upward from the upper surface plate 12a and a lower end rib 12dh2 that protrudes downward from the lower surface plate 12b.

Further, the side structure connecting portion 12 has an extending portion 12ah extending in the y-direction so as to protrude from the fourth end rib 12dh and formed substantially parallel to the upper surface plate 12a. As shown in FIG. 5, the extending portion 12ah can be strongly configured as an upper surface plate extending portion configured to extend from the upper surface plate 12a through the fourth end rib 12dh. The length of the extending portion 12ah in the y-direction is sufficiently long to receive the fourth mechanical fastening portion M4, but is shorter than the lengths of the second end rib 6d2 and the third end rib 7d. The extending portion 12ah of the side structure connecting portion 12 may be extended from the fourth end rib 12dh so as to connect the side structure 6 and the side structure lower portion 7 . Therefore, for example, it can be applied to the z-direction position of the lower plate 12b or the z-direction position between the upper plate 12a and the lower plate 12b.

The side structure connecting portions 12 may be provided continuously or discretely along the x direction.

The side structure 6, the side structure lower part 7, and the side structure connection portion 12 are fastened with the fourth mechanical fastening portion M4, and the side structure 6 and the side structure connection portion 12 are fastened with the upper third mechanical fastening portion M3, The side structure lower part 7 and the side structure connection part 12 are fastened at the lower third mechanical fastening part M3. Furthermore, the side structure 6 and the side structure lower part 7 are joined by the second welding part W2.

The fourth mechanical fastening portion M4 is arranged such that the extending portion 12ah is sandwiched between the second end rib 6d2 of the side structure 6 and the third end rib 7d of the lower side structure 7, and these are stacked in the z direction. These are fastened by penetrating in the z-direction. The fourth mechanical fastening portion M4 is composed of, for example, bolts and nuts, and can be fastened by opening holes in the second end rib 6d2, the third end rib 7d, and the extending portion 12ah of the fastening portion.

The upper third mechanical fastening portion M3 is located at a position where the second inner side plate 6b of the side structure 6 and the fourth end rib 12dh (upper end rib 12dh1) of the side structure connection portion 12 overlap each other. , in the y-direction to fasten them. The third mechanical fastening portion M3 on the lower side is arranged in such a manner that the third inner side plate 7b of the side structure lower portion 7 and the fourth end rib 12dh (lower end rib 12dh2) of the side structure connection portion 12 overlap. Fasten them through in the y-direction at the position where the The third mechanical fastening portion M3 is composed of, for example, bolts and nuts, and can be fastened by opening holes in the fourth end rib 12dh, the second inner side plate 6b, and the third inner side plate 7b of the fastening portion. .

The second welded portion W2 joins the butted portion between the second outer side plate 6a of the side structure 6 and the third outer side plate 7a of the lower side structure 7. As shown in FIG. The second weld W2 can be performed by fusion welding and is welded continuously along the x direction. By this, airtightness can be maintained. In addition, the configuration of the third mechanical fastening portion M3 and the fourth mechanical fastening portion M4 increases the connection strength as a whole, so that the second welded portion W2 can be formed without a large heat input in fusion welding.

The upper third mechanical fastening portion M3 is formed in the side structure 6 by the second inner side plate 6b, the substantially horizontally arranged second connecting rib 6c2, and the inclined second connecting rib 6c3. It is fastened within a substantially triangular cross-sectional shape (a cross-sectional shape that intersects the x direction). Here, the second connecting rib 6c2 and the second connecting rib 6c3 are connected to each other on the side of the second vehicle outer side plate 6a.

The lower third mechanical fastening portion M3 consists of a third inner side plate 7b, a substantially horizontally arranged third connecting rib 7c2, and an obliquely arranged third connecting rib 7c3 in the side structure lower portion 7. , and is fastened within a substantially triangular cross-sectional shape (cross-sectional shape crossing the x-direction). Here, the third vehicle interior side plate 7b2 and the third connection rib 7c3 are connected to each other on the side of the third vehicle exterior side plate 7a.

In the side structure 6, the fourth mechanical fastening portion M4 has a substantially triangular shape and is composed of the second inner side plate 6b, the second end rib 6d2, and the inclined second connection rib 6c4. It is fastened within the cross-sectional shape (cross-sectional shape crossing the x direction). Here, the second connecting rib 6c4 is the second connecting rib 6c closest to the second end rib 6d2 of the side structure 6. As shown in FIG. The second connection rib 6c extends from the vicinity of the connection between (the z-direction end of) the second vehicle-exterior side plate 6a and (the vehicle-outside end of) the second end rib 6d2 toward the second vehicle-interior side plate 6b. It is obliquely formed in a direction away from the second end rib 6d2.

The fourth mechanical fastening portion M4 has a substantially triangular shape in the side structure lower portion 7, and is composed of a third vehicle interior side plate 7b, a third end rib 7d, and a third connecting rib 7c1 arranged at an angle. (cross-sectional shape intersecting the x-direction). Here, the third connecting rib 7c1 is the third connecting rib 7c closest to the third end rib 7d of the side structure lower portion 7. As shown in FIG. The third connection rib 7c1 extends from the vicinity of the connection between (the z-direction end of) the third vehicle-exterior side plate 7a and the third end rib 7d (the vehicle-exterior end thereof) toward the third vehicle-interior side plate 7b. It is obliquely formed in a direction away from the third end rib 7d.

The fourth mechanical fastening portion M4 can be fastened from the inside of the vehicle using a tool or the like at the joint portion between the side structure 6, the side structure lower portion 7, and the side structure connecting portion 12. As shown in FIG. As shown in FIG. 3, this is part of the second inner side plate 6b and the second connecting rib 6c of the side structure 6, and the third inner side plate 7b and the third connecting rib 7c of the lower side structure 7. This is because a gap is formed due to the partial removal.

A case where an airtight load 96 from the inside acts on the connection structure between the side structure 6 and the side structure lower portion 7 shown in FIG. 5 will be described. When the airtight load 96 acts on the connecting portion between the side structure 6 and the side structure lower portion 7 in a direction to pull the two structures apart, the upper and lower third mechanical fastening portions M3 do not move the side structure 6 and the side structure lower portion 7 At the same time, it resists the axial force generated in the fourth mechanical fastening portion M4 and the force in the direction in which the second welded portion W2 pulls the side structure 6 and the side structure lower portion 7 apart.

Further, the portions to be fastened by the third mechanical fastening portion M3 and the fourth mechanical fastening portion M4 are configured such that the cross-sectional shape of the side structure 6 and the side structure lower portion 7 intersecting in the x-direction is triangular (approximately triangular). As such, these joints are robust structures with high stiffness. Therefore, since it effectively resists the deformation and the like caused by the airtight load 96, the deformation of the joint between the side structure 6 and the side structure lower part 7 is suppressed, and the generation of excessive stress accompanying the deformation is effectively prevented. can be suppressed.

With the above-described structure, the rail vehicle structure, which is composed of members with small plate thickness dimensions in order to run at high speed and promote weight reduction, is kept airtight while suppressing the large heat input associated with fusion welding. It is possible to reduce the deformation of the members constituting the. Furthermore, the number of man-hours required for correcting the deformation can be reduced. Furthermore, it is possible to provide a strong and lightweight rail vehicle structure that can withstand an airtight load.

In addition, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations. In addition, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

For example, the side structure connecting portion 12 is illustrated as a member that is horizontally bridged between the lower end portions of the pair of left and right side structures 6 (the upper end portions of the side structure lower portion 7). However, other than this, the side structure connecting portion 12 may be a member that connects between the connecting portion between the side structure 6 and the side structure lower portion 7 and the structure bottom portion 8 in an inclined manner.

DESCRIPTION OF SYMBOLS 1... Rail vehicle, 2... Bogie, 3... Structure, 5... Roof structure, 5a... 1st vehicle exterior side plate, 5b... 1st vehicle interior side plate, 5c, 5c1... 1st connection rib, 5d... 1st end rib , 6... Side structure 6a... Second vehicle exterior side plate 6b... Second vehicle interior side plate 6bh... Second vehicle interior side plate extending portion 6c, 6c1, 6c2, 6c3, 6c4... Second connection rib 6d1, 6d2 Second end rib 7 Lower side structure 7a Third vehicle outer side plate 7b, 7b2 Third vehicle inner side plate 7c, 7c1, 7c2, 7c3 Third connection rib 7d Third end Rib 8 Body structure bottom part 9 End body structure 12 Side body structure connection part 12a Top plate 12ah Extension part 12b Bottom plate 12c Connection rib 12dh Fourth end rib 12dh1 Upper part End rib 12dh2 Lower end rib 20 Side structure 69 Partition wall 70 Seat 72 Upper floor 76 Partition door 92 Platform 96 Airtight load M1 First mechanical fastening part , M2... Second mechanical joint part, M3... Third mechanical joint part, M4... Fourth mechanical joint part, W1... First welded part, W2... Second welded part

Claims (6)

having a roof structure and side structures connected to both ends in the width direction of the roof structure,
The roof structure includes a first vehicle exterior side panel, a first vehicle interior side panel, a plurality of first connection ribs connecting the first vehicle exterior side panel and the first vehicle interior side panel, the first vehicle exterior side panel, and and a first end rib that connects the width direction end of the first vehicle interior side plate, and a part of the first vehicle interior side plate and the first connection rib is removed,
The side structure includes a second vehicle exterior side plate, a second vehicle interior side plate, a plurality of second connection ribs connecting the second vehicle exterior side plate and the second vehicle interior side plate, the second vehicle exterior side plate and the second vehicle interior side plate. a second end rib connecting widthwise ends of the second vehicle interior side plate; a second vehicle interior side plate extending portion extending from the second end rib in a direction along the first vehicle interior side plate; and part of the second vehicle interior side plate and the second connection rib are removed,
a first mechanical fastening portion for fastening the first interior side plate and the second interior side plate extending portion; a second mechanical fastening portion for fastening the first end rib and the second end rib; and a first welding portion for welding the first outer side plate and the second outer side plate. In the rail vehicle according to claim 1,
In the roof structure, a substantially triangular shape is formed surrounded by the first vehicle interior side plate, the first connecting rib, and the first end rib where the first mechanical fastening portion is present,
In the side structure, a substantially triangular shape surrounded by the second vehicle inner side plate or the second vehicle outer side plate where the second mechanical fastening portion is present, the second connection rib, and the second end rib A rail vehicle characterized by having a shape. In the rail vehicle according to claim 1,
a side structure lower portion connected to the lower end portion of the side structure; and a side structure connecting portion;
The lower part of the side structure includes a third vehicle exterior side plate, a third vehicle interior side plate, a plurality of third connection ribs connecting the third vehicle exterior side plate and the third vehicle interior side plate, and the third vehicle exterior side plate. and a third end rib that connects the height direction end of the third vehicle interior side plate, and a part of the third vehicle interior side plate and the third connection rib is removed,
The rail vehicle, wherein the side structure connecting portion connects a lower end portion of the side structure and an upper end portion of the lower portion of the side structure. In the rail vehicle according to claim 3,
The side structure connecting portion includes an upper plate, a lower plate arranged substantially parallel to the upper plate, a plurality of fourth connection ribs connecting the upper plate and the lower plate, the upper plate and the lower plate. a fourth end rib extending in the height direction at the width direction end of the, and an extension portion extending outward in the width direction from the fourth end rib,
an upper third mechanical fastening portion for fastening the fourth end rib and the second vehicle interior side plate; and a lower third mechanical fastening portion for fastening the fourth end rib and the third vehicle interior side plate. , a fourth mechanical fastening portion that fastens the second end rib and the third end rib via the extending portion; and a fourth mechanical fastening portion that connects the second vehicle outer side plate and the third vehicle outer side plate. 2 welds; and a rail vehicle. In the rail vehicle according to claim 4,
The rail vehicle, wherein the extending portion is an upper surface plate extending portion that extends in the width direction from the upper surface plate through the fourth end rib. In the rail vehicle according to claim 4,
The rail vehicle, wherein the side structure connecting portion is provided in a manner to bridge between the pair of left and right side structures and between the pair of left and right side structure lower portions.

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