JPH0577722A - Rolling stock car structure - Google Patents

Abstract

PURPOSE:To improve the rigidity of a carbody and reduce its weight by arranging light alloy front face materials on both surfaces of a core material, providing connecting materials on the outer peripheral ends of the core material and the front face materials, and between both the front face materials, and constituting the car body by boards obtained by brazing the above materials. CONSTITUTION:In an aluminum alloy carbody structure 1 consisting of an underframe 2, side body structures 3, a roof body structure 4, and end body structures 5, the underframe 2 is composed of side beams 6 arranged on both ends across the vehicle body width along the longitudinal direction of the vehicle body, a cross beam 7 laid-installed between the side beams 6, 6, and a floor board 8 lined-installed on the side beam. In this case, for example, with the floor board 8 constituting the body structure, light alloy front face materials 9, 9 are arranged on both surfaces of a honeycomb core material 10, connecting members 11a are arranged between both the front face materials 9, 9 on the outer peripheral ends of the square front face material 9, and these materials are brazed and joined to form a board member. Besides, at least the peripheral parts of the openings such as side window, side entrances, end entrances are constituted by light alloy extruded sections.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure, and more particularly to a body structure suitable for a railway vehicle traveling at high speed.

[0002]

2. Description of the Related Art Conventionally, a railway vehicle structure made of an iron material is constructed by joining an outer plate to the outer side of a skeleton member. Further, the stainless steel railcar structure is formed of a three-dimensional solid joint in order to improve the strength between the frame members and the outer plate joint.

Further, the railway vehicle structure made of a light alloy aluminum alloy material is formed by using an extruded shape member in which an outer plate and a bone member are integrally molded. For example, Light Metal Vehicle Commission Report No. 3 (Published by the Japan Railroad Vehicle Manufacturers Association, 1974-1972, pp. 70-72).

In addition, in order to reduce the weight of the floor plate constituting the floor surface of the passenger compartment, there is known a structure in which the floor plate itself is an adhesive aluminum honeycomb sandwich panel. Related to this structure using the honeycomb material,
For example, Japanese Utility Model No. 54-183007 or Japanese Utility Model Sho 60-
179569, etc. are mentioned.

[0005]

As the speed of railway vehicles increases, problems such as an increase in impact on tracks, an increase in noise generated during running, and an increase in operating power cost occur. In order to solve these problems, it is essential to reduce the weight of the railway vehicle structure.

In order to reduce the weight, an extruded shape member made of a light alloy is adopted, and the outer plate portion is also made of the extruded shape member. However, there is a technical limit to reducing the plate thickness of the extruded profile itself. Further, since the out-of-plane bending rigidity of the plate itself is lowered, it is necessary to install a large number of reinforcing materials, which causes a problem of increasing the number of manufacturing steps.

On the other hand, in the aluminum honeycomb sandwich panel which has been conventionally used as a floor plate, the surface material and the core material are joined by a resin adhesive. Therefore, there is a problem in that the number of man-hours is increased as compared with the welding and joining because the joining with the skeleton member is performed by using bolts, nuts, rivets or the like. Further, since the bending rigidity of the conventional aluminum honeycomb sandwich panel is determined by the strength of the resin adhesive, there is a problem in securing the strength and reliability when used in a portion where a large load acts.

By the way, it is known that when a railway vehicle travels in a tunnel at a high speed, the pressure outside the vehicle changes abruptly. In particular, large pressure fluctuations occur in a short time when vehicles pass each other in a tunnel. In order to prevent such pressure fluctuations from being transmitted to the inside of the vehicle and causing passengers to feel uncomfortable, the entire structure has an airtight structure. Therefore,
The load of passengers and various devices, the weight of the structure itself, and the pressure due to the pressure fluctuation outside the vehicle act on the structure. Therefore, it is necessary to improve the rigidity of the structure and the strength against a pressure load. However, there is a contradictory relationship between improving the rigidity and strength of the structure and reducing the weight, and it is difficult to realize the structure.

An object of the present invention is to provide a railway vehicle structure that is lightweight and has excellent pressure resistance.

[0010]

[Means for Solving the Problems] The object is to provide an underframe, a side structure, a roof structure, and a gable structure with a light alloy surface material, a core material, a frame material, and a connecting member. A plate member in which a surface material is arranged on the core material and the outer peripheral end of the core material and the surface material and a coupling member is arranged between both surface materials, and these are joined by brazing; and an extruded shape member made of a light alloy. It is achieved by configuring

[0011]

[Operation] When a railway car travels in a tunnel at high speed,
External pressure is generated. Especially, when the vehicles pass each other in the tunnel, the pressure fluctuation becomes maximum. This fluctuation of the vehicle exterior pressure acts on the airtight wall that constitutes the structure. In order to withstand such pressure fluctuations, the plate member that constitutes each structure of the present invention is made of a laminated material in which a core material and a surface material are superposed and these are joined by brazing. The plate member has a high out-of-plane bending rigidity and can sufficiently withstand the external pressure. Therefore, according to the present invention, the pressure resistance of the railway vehicle can be improved.

Further, the plate member constituting each structure is formed of a core material and a surface material made of a thin plate made of a light alloy, and has a smaller plate thickness than a conventional extruded shape member made of a light alloy. It is lightweight. Therefore, the structure manufactured using the plate member becomes lightweight.

Further, since the plate member joins the core material and the surface material by brazing, the surface material itself has a structure in which the entire surface is bonded to the core material. Therefore, the surface member has less distortion than the conventional plate member, and is always bonded to the bone member in a smooth state. Since this can be used as a plate member without causing deformation of the surface material itself, it is possible to improve rigidity and reduce weight of the structure.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the structure 1 to which the present invention is applied is made of an aluminum alloy composed of an underframe 2, side structures 3, a roof structure 4 and a gable structure 5.

First, the construction of the underframe 2 in the embodiment of the present invention will be described with reference to FIGS. In FIG. 2, 6 is a side beam that constitutes the underframe 2, and is installed at both ends of the underframe 2 in the vehicle width direction along the vehicle longitudinal direction. A lateral beam 7 is installed between the side beams 6 and 6, and both ends of the lateral beam 7 are joined to the side surface 6 a of the side beam 6.
The lateral beams 7 are arranged between the side beams 6 in parallel with each other in the longitudinal direction of the vehicle body at a predetermined pitch, and a floor plate 8 is installed on the lateral beams 7.

In FIGS. 3 and 4, the floor plate 8 is composed of light alloy surface members 9 and 9, a core member 10, and connecting members 11a and 11b. The floor plate 8 has surface materials 9, 9 arranged on both sides of a honeycomb-shaped core material 10, and a coupling member 11a or 11b arranged between both surface materials 9, 9 at the outer peripheral end of the rectangular surface material 9. And a plate member (laminated material) in which these are joined by brazing.

The floor plate 8 is connected to the side beams 6 and the lateral beams 7 by welding at the positions of the connecting member 11a installed in the longitudinal direction of the vehicle body and the connecting member 11b installed in the vehicle width direction.

First, the connecting structure of the floor plate 8 and the side beam 6 will be described with reference to FIG. The floor plate 8 and the side beam 6 are coupled to each other by the flanges 11c, 1 arranged above and below the coupling member 11a.
1c and the flanges 6b, 6b provided on the side beam 6 are welded together. There are two coupling members 11a on the floor plate 8.

Next, the connecting structure of the floor plate 8 and the lateral beam 7 will be described with reference to FIG. The length of the floor plate 8 is the same as the installation interval of the lateral beams 7, 7. Connecting member 11 at the end of floor plate 8
The b has a flange 11d arranged on the upper side and a flange 11e arranged on the lower side. Lower flange 11
The width of e is smaller than that of the upper flange 11d. The floor boards 8 adjacent to each other are joined by welding the flanges 11d, 11d arranged on the upper side. Here, the connecting members 11b of the adjacent floor plates 8 are installed so as to face each other. Since the flange 11e of the coupling member 11b has a smaller width than the flange 11d, when the coupling members 11b are coupled so as to face each other, the opening 11 is formed between the adjacent flanges 11e.
f can be done. The width dimension of the opening 11f is substantially the same as the width dimension of the flange 7a arranged above the lateral beam 7. The floor plate 8 and the lateral beam 7 are joined by connecting the flange 7a arranged on the upper portion of the lateral beam 7 to the flange 11 of the joining member 11b.
It is incorporated in the opening 11f formed between the e and the flange 7a arranged on the upper part of the lateral beam 7 and the flange 11e arranged on the lower side of the coupling member 11b are positioned and welded so as to be flush with each other. By doing. As described above, the joint portion between the floor plate 8 and the lateral beam 7 is the flange 11d arranged on the upper side and the flange 11e arranged on the lower side of the coupling member 11b.
Since the closed cross section is formed by the flange 7a arranged on the upper portion of the lateral beam 7, the joint strength can be improved.

The side beams 6, the side beams 7, and the connecting member 1
1a and 11b are extruded shape members. Coupling member 11a,
11b has a channel shape.

In addition, since the surface material 9 and the core material 10 of the floor board 8 are closely joined by brazing, the buckling strength, bending strength and shear strength of the floor board 8 are in comparison with those of extruded shape members made of light alloy. And expensive. In the underframe 2, when the vehicle end compressive load acts, the floor plate 8 and the side beams 6 bear the vehicle end compressive load. Therefore, although the compressive stress is generated in the floor plate member 8, the strength can be improved by disposing the floor plate 8 having high buckling strength. Further, when an internal pressure load is applied, the outboard deformation of the entire structure 1 can be suppressed by configuring the underframe 2 with the floor plate 8 having high bending rigidity. Further, by arranging the floor board 8 having high rigidity and strength, the side beam 6 and the lateral beam 7 can be made smaller and lighter. Therefore, the weight of the entire underframe 2 can be reduced.

Further, the connecting member 11 for the adjacent floor boards 8
Since the welding of the b parts and the welding of the flange 7a arranged on the upper part of the lateral beam 7 and the flange 11e arranged on the lower side of the coupling member 11b can be performed from one direction, the manufacturability can be improved. it can. That is, the floor plates 8 are welded to each other from the opening 11f side. Next, this opening 11f
The horizontal beam 7 is arranged on the plate and welded. Next, the side beam 7 and the floor plate 8 are welded to the side beam 6.

In FIG. 2, the floor plate 8 described above is the underframe 2
In between, the pillow beams 12 are arranged between the front and rear of the vehicle body. As shown in FIG. 5, between the pillow beam 12 and the end beams 33 arranged at the front and rear ends of the underframe 2, a floor plate 8a made of a light alloy extruded shape member is arranged. Floor board 8
As for a, the integrally formed rib 8b is provided on the indoor side along the longitudinal direction of the vehicle body. The floor plates 8a made of an extruded shape member made of a light alloy are arranged at the front and rear ends of the underframe 2 because the pillow beam 12, the middle beam 13 and the side beam 14 are provided at the front and rear ends of the vehicle body of the underframe 2. Since the skeleton members of the above are densely arranged as compared with the middle portion of the vehicle body between the pillow beams 12, 12, when the floor plate 8 is arranged at the front and rear end portions of the vehicle body, the skeleton members are coupled to the skeleton coupling position. This is because the member 11 is required, and the weight is increased as compared with the floor plate 8a made of a light alloy extruded shape member. As described above, by using the floor plate 8 including the light alloy surface member 9, the core member 10 and the joining member 11 and the floor plate 8a including the extruded shape member together, the weight of the entire underframe 2 can be reduced.

As shown in FIG. 6, the floor plate 8 and the floor plate 8a are joined by welding through the joining member 39 between the joining member 11b at the end portion of the floor plate 8 and the floor plate 8a. The joining member 39 is welded to the upper and lower pieces of the joining member 11b.
With such a coupling structure, the load acting on the vehicle body can be smoothly transmitted.

Next, the structure of the general portion other than the side entrance / exit portion 25 of the side structure 3 will be described with reference to FIGS. 15
Is a side pillar formed of a continuous member from the upper surface of the side beam 6 of the underframe 2 to the eaves girder 16 above the vehicle body, and has a Z-shaped, U-shaped or I-shaped cross section. An outer plate member 17 made of a laminated material is joined to the outer surface of the side pillar 15 on the vehicle body. The outer plate member 17 includes the surface members 19, 19 and the core member 2 similarly to the floor plate 8.
0 and the connecting members 21a, 21g, 21i have a laminated structure. One of the surface members 19 is the side structure 3
Form the outer surface of the.

Next, the connecting structure of the outer plate member 17 and the side column 15 will be described with reference to FIG. The outer plate member 17 is fixed to the side pillar 15 by welding at the position of the connecting member 21a provided in the longitudinal direction at the end portion thereof. The side pillar 15 and the outer plate member 17 are connected to each other by the flange 21c arranged on the indoor side of the connecting member 21a and the flange provided on the side pillar 15, similarly to the above-described connecting structure of the floor plate 8 and the lateral beam 7. 15a
Is done by welding. The coupling member 21a has a flange 21c arranged on the indoor side and a flange 21d arranged on the vehicle outside, and the flange 21c has a width dimension smaller than that of the flange 21d. The adjacent outer plate members 17 are coupled to each other by the flange 2 arranged outside the vehicle.
This is done by welding 1d. Here, the connecting members 21a of the adjacent outer plate members 17 are installed so as to face each other. The flange 21 of the connecting member 21a
Since the width dimension of c is smaller than that of the flange 21d, when the coupling members 21a are coupled so as to face each other, an opening 21e is formed between the adjacent flanges 21c. The width dimension of the opening 21e is determined according to the width dimension of the flange 15a arranged on the vehicle exterior side of the side pillar 15.
The outer plate member 17 and the side pillar 15 are coupled to each other by incorporating the flange 15a arranged on the vehicle outer side of the side pillar 15 into the opening 21e formed between the flanges 21c of the coupling member 21a.
5, the flange 15a arranged on the outer side of the vehicle and the connecting member 2
It is performed by positioning and welding so that the flange 21c arranged on the indoor side of 1a is flush. The coupling member 21a has a channel shape.

Next, the connecting structure of the outer plate member 17 and the underframe 2 will be described with reference to FIG. The outer plate member 17 has a channel shape at the lower end. There is a coupling member 21g. The connecting member 21g has a flange 21 of the same length on the vehicle exterior side and the interior side.
have h. The flange 21h is joined to the long base 31 joined to the side beam 6 forming the underframe 2 by forming a welding portion.

Next, the connecting structure of the outer plate member 17 and the eaves girder 16 arranged above the side structure 3 will be described with reference to FIG. The eaves girder 16 extends along the longitudinal direction of the vehicle body. A channel-shaped coupling member 21i is installed on the upper end of the outer plate member 17. The coupling member 21i has a flange 21j on the vehicle exterior side and the vehicle interior side. The flange 21j is joined to the eaves girder 16 by forming a weld.

In the outer plate member 17, the surface member 19 and the core member 20 are tightly joined by brazing, so that the buckling strength, bending strength and shear strength are compared with those of the extruded shape member made of light alloy. And expensive. In the side structure 3, when a vehicle end compressive load is applied, a high compressive stress is generated in the vehicle body longitudinal direction on the lower side of the side structure 3, and when an internal pressure load is applied,
High tensile stress is generated on the upper side of the side structure 3. Therefore, by arranging the outer plate member 17 on the side structure 3 in which such high stress is generated, it is possible to reduce the weight and improve the strength. Further, when an internal pressure load is applied, by forming the side structure 3 with the outer plate member 17 having high bending rigidity, the out-of-plane deformation of the entire structure 1 can be suppressed. Furthermore, by disposing the outer plate member 17 having high rigidity and strength in the side structure 3,
The size and weight of can be reduced. Therefore, the weight of the entire side structure 3 can be reduced. Further, the joint portion between the outer plate member 17 and the side pillar 15 is the joint member 2
The flange 21c and the flange 21d of 1a and the flange 15a of the side column 15 have a closed cross-sectional structure, so that the bonding strength can be improved.

Further, the welding of the joining members 21a of the adjacent outer plate members 17 and the welding of the flange 15a arranged on the vehicle outer side of the side column 15 and the flange 21c arranged on the indoor side of the joining member 21a are carried out. Since it can be performed from one direction, the manufacturability can be improved. That is,
The outer plate members 17 are welded to each other from the opening 21e side. As a result, the formation of weld beads on the outside of the outer plate member 17 is small and the cutting and removal thereof can be facilitated. This effect is the same as in the case of welding the floor plate 8 and the roof structure 4 described later.
Next, the side pillar 15 is arranged in the opening 21e and welded. Next, the eaves girder 16 and the length table 31 are welded to the upper and lower ends of the outer plate member 17 and the outer plate 15, respectively. Next, the side beam 6 and the eaves girder 16 of the roof structure 4 are welded. Whether to weld the side beam 6 or the roof structure 4 first depends on the work procedure.

Next, the structure of the side entrance / exit portion 25 of the side structure 3 will be described with reference to FIGS. 11 and 12. The side entrance / exit portions 25 arranged at the front and rear ends of the side structure 3 are constituted by an outer plate member 36 made of a light alloy extruded shape member and a bone member 37 made of an extruded shape material. The outer plate member 17 and the outer plate member 36 are connected to each other by the connecting member 21a of the outer plate member 17.
And the outer plate member 36 are welded via a connecting member 38. With such a coupling structure, the load acting on the vehicle body can be smoothly transmitted.

Since the side entrance / exit portion having a large opening has a complicated structure as compared with the general vehicle body portion, arranging the outer plate member 17 causes a problem of increasing the number of steps. Therefore, the plate member 36 made of a light alloy extruded shape member is used.
If the side entrance / exit portion is configured using the bone member 37 and the bone member 37, a complicated structure can be easily configured. The bone member forming the side entrance / exit portion 25 of the side structure 3 has a larger cross section than the side column 15, and since it is connected to the bone member of the end structure 5, the bone member has high strength and rigidity. It is not necessary to arrange the outer plate member 17. With respect to the side structure without the side entrance / exit portion 25, the above-described effect can be obtained by disposing the outer plate member 17.

Next, regarding the structure of the roof structure 4, FIG.
This will be described with reference to FIG. Reference numeral 26 is a rafter arranged between the eaves girders 16 arranged on the upper side of the side structure 3, and has a Z-shaped, U-shaped or I-shaped cross section. An outer plate member 27 made of a laminated material is joined to the outer surface of the rafter 26 on the vehicle body. The outer plate member 27, like the outer plate member 17 of the floor plate 8 and the side structure 3, includes light alloy surface members 28, 28 and a core member 29.
And a coupling member 30a, 30e has a laminated structure. One of the surface materials 28 forms the vehicle exterior surface of the roof structure 4.

The connecting structure of the rafter 26 and the outer plate member 27 will be described. The rafter 26 and the outer plate member 27 are joined by welding at the position of the joining member 30a arranged in the roof width direction. Flange 3 disposed on the indoor side of the coupling member 30a
0b and the flange 26a provided on the rafter 26 are welded together. The coupling member 30a has a flange 30b arranged on the indoor side and a flange 30c arranged on the outer side of the vehicle. The flange 30b has a smaller width dimension than the flange 30c. The adjoining outer plate members 27 are joined together by welding the flanges 30c arranged outside the vehicle. The connecting members 30a of the adjacent outer plate members 27 are installed so as to face each other. Since the flange 30b has a smaller width dimension than the flange 30c, when the coupling members 30a are joined so as to face each other, an opening 30d is formed between the adjacent flanges 30b.
You can The width dimension of the opening 30d is determined according to the width dimension of the flange 26a arranged on the vehicle outer side of the rafter 26. The outer plate member 27 and the rafter 26 are connected to each other by incorporating the flange 26a of the rafter 26 into the opening 30d and
6a and the flange 30b are positioned so that they are flush with each other and then welded.

Next, the connecting structure of the outer plate member 27 of the roof structure 4 and the eaves girder 16 arranged above the side structure 3 will be described with reference to FIG. At the end of the outer plate member 27 in the vehicle body width direction, a coupling member 30e is installed along the vehicle body longitudinal direction corresponding to the coupling portion of the eaves girder 16. Coupling member 30
The e has a flange 30f on the vehicle exterior side and the vehicle interior side. The eaves girder 16 is joined to the flange 30f by forming a weld.

As described above, in the outer plate member 27, since the surface material 28 and the core material 29 are closely joined by brazing, the buckling strength, the bending strength and the shear strength are extruded from a light alloy. It is higher than the plate member of the profile. Therefore,
When an internal pressure load is applied to the roof structure 4, by constructing the outer plate member 27 having high strength and rigidity, the out-of-plane deformation of the entire structure 1 can be suppressed, and the rafter 26 can be made smaller and lighter. You can Therefore, the roof structure 4
The overall weight can be reduced. Further, the outer plate member 2
7 and the rafter 26 have a closed cross-section structure due to the flange 30b and the flange 30c of the joining member 30a and the flange 26a of the rafter 26, the joint strength can be improved.

Further, the welding of the connecting members 30a of the adjacent outer plate members 27 and the welding of the flange 26a arranged on the vehicle outer side of the rafter 26 and the flange 30b arranged on the indoor side of the connecting member 30a. Can be performed from one direction, so that productivity can be improved. That is, the outer plate members 27 are welded to each other from the opening 30d. Next, the rafter 26 is placed in the opening 30d and welded. Next, the eaves girder 16 is welded to both ends of the outer plate member 27 and the rafter 26.

Next, the structure of the wife structure 5 will be described.
The end structure 5 is composed of an outer plate member made of a light alloy extruded shape member and a bone member. Since the gabled structure 5 is provided with the gabled inlet / outlet part having a large opening, the gabled structure 5 can be constructed without increasing the number of steps by using a plate member and a bone member made of a light alloy extruded shape member. ..

Next, another embodiment of the underframe 2 will be described with reference to FIG. In the present embodiment, the floor member constituting the underframe 2 is formed by the floor plate 8 and the extruded shape member 34 made of a light alloy having a truss cross section. A light alloy extruded profile 34 having a truss cross section is located adjacent to the side beam 6,
The floor plate 8 is an extruded shape member 3 made of light alloy having the truss cross section.
It is arranged between 4, 34. The floor plate 8 and the extruded shape member 34 made of a light alloy having a truss cross section are joined together by forming a welded portion 35a at the end of the joining member 11a of the floor plate 8 and the light alloy extruded shape member 34 having a truss section. Done.
Furthermore, an extruded shape member 34 made of a light alloy having a truss cross section
The side beam 6 and the side beam 6 are connected to each other by forming a welded portion 35b.

According to such a structure, the electric wire or the electric wire tube of the electric article or the like arranged under the floor can be arranged in the space 34a of the truss portion of the extruded shape member 34 made of the light alloy. It is possible to omit a new part for attaching a conduit or the like, and it is possible to reduce the number of manufacturing steps.

In the above embodiment, the laminated plates 8, 17, 27 are formed by brazing, but the members may be joined by metal joining. Further, the shape of the space of the core materials 10, 20, 29 is not limited to a hexagon.

[0043]

As described above, according to the present invention,
It is possible to provide a railway vehicle structure that is lightweight and has excellent pressure resistance.

[Brief description of drawings]

FIG. 1 is a perspective view of a railway vehicle structure.

FIG. 2 is a plan view of an underframe.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG.

5 is a cross-sectional view taken along line CC of FIG.

FIG. 6 is a sectional view taken along line I-I of FIG.

FIG. 7 is a side view of a side structure.

8 is a cross-sectional view taken along the line DD of FIG.

FIG. 9 is a cross-sectional view of a connecting portion between a side structure and an underframe.

FIG. 10 is a cross-sectional view of a joint portion between a side structure and a roof structure.

FIG. 11 is a side view of a side entrance / exit.

12 is a sectional view taken along line GG of FIG.

FIG. 13 is a plan view of a roof structure.

14 is a cross-sectional view taken along the line EE of FIG.

15 is a cross-sectional view taken along line HH of FIG.

[Explanation of symbols]

1 ... Rail vehicle structure, 2 ... Underframe, 3 ... Side structure, 4 ... Roof structure, 5 ... Wife structure, 6 ... Side beam, 6a ... Side beam side, 6
b ... Side beam flange, 7 ... Side beam, 7a ... Side beam flange, 8, 8a ... Floor plate, 8b ... Rib, 9, 19, 28 ...
Surface material 10, 20, 29 ... Core material, 11a ... Coupling member in vehicle body longitudinal direction, 11b ... Coupling member in vehicle body width direction, 11
c ... Upper and lower flanges of the connecting member in the longitudinal direction of the vehicle body, 11d
... an upper flange of a connecting member in the width direction of the vehicle body, 11e ... a lower flange of a connecting member in the width direction of the vehicle body, 11f ... an opening of the connecting member in the width direction of the vehicle body, 12 ... a pillow beam, 13 ... a middle beam,
14 ... Horizontal beam, 15 ... Side column, 15a ... Side column flange,
16 ... Eaves girder, 17, 27 ... Outer plate member, 18 ... Side window member,
21a, 30a ... Coupling members in the circumferential direction of the vehicle body, 21c, 3
0b ... Interior side flange of the connecting member in the vehicle body circumferential direction, 21
d, 30c ... Vehicle exterior flange of the vehicle body circumferential direction connecting member, 21e, 30d ... Vehicle body circumferential direction connecting member opening, 21g, 30e ... Vehicle body longitudinal direction connecting member, 21
h, 30f ... Flange of connecting member in longitudinal direction of vehicle body, 2
1i ... a connecting member for connecting members in the longitudinal direction of the vehicle body, 21j
... Flange of connecting member in the longitudinal direction of the vehicle body, 25 ... Side entrance / exit portion, 26 ... Rafter, 26a ... Rafter flange, 31 ... Long base, 33 ... End beam, 34 ... Light alloy extruded profile of truss cross section, 34a ... Space portion of extruded shape member made of light alloy of truss cross section, 35a, 35b ... Welded portion, 36 ... Outer plate member of extruded shape material made of light alloy, 37 ... Side entrance / exit column, 38, 39 ... Joining member.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mamoru Ohara 794 Azuma Higashitoyo, Shimomatsu City, Yamaguchi Prefecture Stock company Hitachi Kasado Plant (72) Inventor Masato Okazaki 794 Azuma Higashitoyo, Shimomatsu City Yamaguchi Prefecture Stock Association Company Hitachi Ltd. Kasado factory

Claims (3)

[Claims] 1. A railcar structure constructed by combining and joining an underframe, a side structure, a roof structure, and a gable structure, which comprises a light alloy surface material, a core material, and a connecting member, and the core material. And a plate member obtained by arranging a surface material on both surfaces of the core material, and arranging a joining member between the outer peripheral ends of the core material and the surface material and both surface materials, and extruding a light alloy. A railway vehicle structure characterized by being composed of materials. 2. The railcar structure according to claim 1, wherein at least the periphery of the openings such as the side windows, the side entrances and the exits, and the like are made of a light alloy extruded shape member. .. 3. The railcar structure according to claim 1, wherein the undercarriage structure of the underframe is composed of a floor member and a bone member formed of a light alloy extruded shape member, and at least a pillow beam. The intermediate structure between is composed of a light alloy surface material, a core material, and a joining member, and the surface material is arranged on both surfaces of the core material, and the outer peripheral edge of the core material and the surface material and both surface materials. A railcar structure comprising: a floor member in which a joining member is arranged between them and joined by brazing; and a skeleton member formed of a light alloy extruded shape member.