JP2560938B2 - Laminated panels and vehicles - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated panel in which a core having a large number of cells in contact with two face plates is arranged between the two face plates, and a vehicle using the same .

[0002]

2. Description of the Related Art In a railway vehicle running at a high speed, problems such as an increase in impact on a track, an increase in noise generated during running, and an increase in operating power cost occur as the speed increases. In order to solve this problem, it is required to reduce the weight of the railcar body.

On the other hand, it is known that when a railway vehicle travels in a tunnel at a high speed, the pressure outside the vehicle suddenly changes. In particular, when vehicles pass each other in a tunnel, a large pressure fluctuation occurs in a short time. In order to prevent such pressure fluctuations from being transmitted to the inside of the vehicle and causing discomfort to passengers, the entire vehicle body has an airtight structure. Therefore, the load of passengers and various devices, the weight of the vehicle body itself, and the pressure due to the pressure fluctuation outside the vehicle act on the vehicle body. Therefore, it is necessary to improve the rigidity of the vehicle body and the strength against a pressure load.

From these points of view, it has been proposed to construct a vehicle body by joining light alloy brazed honeycomb panels by welding. The honeycomb panel has a core having a large number of hexagonal cells arranged between two face plates. In addition, a thick connecting member is disposed on an outer peripheral portion between the two face plates. The two face plates, the core, and the connecting member are brazed and integrated with the adjacent members. The honeycomb panels are welded to each other at the connecting members and bones (columns, etc.) to form one vehicle body. This vehicle body is disclosed in Japanese Patent Application Laid-Open No. 03-90468.

[0005]

Since the honeycomb panel is used, the weight of the vehicle body is reduced. However, a large stress acts on the joints between the honeycomb panels and the joints with the bone members such as columns, that is, the corners of the honeycomb panels.

In order to prevent this, it is conceivable to increase the thickness of the face plate of the panel or the thickness of the core. This increases the weight of the honeycomb panel. On the other hand, it is conceivable to reduce the size of the honeycomb panel and increase the number of bones. This also increases the weight. Further, the welding work requires a lot of time.

An object of the present invention is to provide a honeycomb panel which is lightweight and has a small stress generated at the corners of the honeycomb panel.

[0008]

SUMMARY OF THE INVENTION The present invention has two rectangular shapes.
The face plate and the two face plates are joined together.
Has a plate approximately at a right angle to, and has substantially regular hexagonal cells
And a core disposed along the edge of the face plate,
A connecting member joined to the face plate and arranged as necessary
And between the two face plates between the cores
It is disposed, and a strength member that are joined to the two face plates, front
The connecting member and the connecting member substantially orthogonal thereto are
Or the connecting member and the substantially
Is disposed in a portion formed by the strength member
Of the coupling member and the strength member are arranged at an angle.
A linear reinforcing member made from the binding of said moiety
Member or the longitudinal direction of the strength member and the length of the reinforcing member
Angle between side direction is substantially 30 degrees, the reinforcing
The ends of the members are located near the coupling member and the strength member.
And the reinforcing member is located near the end of the core.
The reinforcing member is a part of the connecting member and the strength portion.
Material, joined to at least one of the two face plates
And are characterized.

[0009]

The two joining members which are orthogonal to each other, and the joining member and the strength member are joined by an inclined reinforcing member. For this reason, the load flow is dispersed smoothly without sudden changes,
The stress concentration generated in this portion can be relaxed. Also, since the cells are hexagonal, the connecting member,
The reinforcing member is at an angle of 30 degrees with respect to the longitudinal direction of the strength member.
Since it is arranged, the end of the core plate that contacts the reinforcing member
The position can be made almost constant from the cell at the end,
It is possible to easily perform the cutting work in the longitudinal direction. this
That is, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG.
Is more obvious. That is, the core in contact with the reinforcing member
From the position of the edge of each plate to the predetermined position of the cell at the edge
The distance to is in the case of FIGS. 3, 4, 6, 7 and 10.
There are 2 types, which makes it easy to cut the plate in the longitudinal direction.
It is something. In the case of Fig. 5, one type can be used, and the cutting work
It's easier to do. For example, if the angle is 45
Degree, the distance from the edge cell to the edge of the plate is
It will be different for each board. For this reason, the cutting work of the plate
The work becomes extremely difficult. Reinforcing member like this
Is not simply arranged diagonally at the corner,
"30 degrees" is not just a limited angle, but a hexagonal cell
It is based on the discovery of the characteristics of. In addition, 30 degrees is 60
Since it is a supplementary angle of degrees, "30 degrees" is the same as "60 degrees".
Is one. In addition, in the above description,
"A" includes a core that does not contact, and the end of the core is a reinforcing member.
It is located in the vicinity of.

[0010]

EXAMPLE A honeycomb panel according to an example of the present invention will be described below with reference to FIGS.

The honeycomb panel 50 has two face plates 51, 5
2, a core 55 that constitutes a large number of hexagonal cells S, and coupling members 60 and 61 arranged on the outer peripheral portions of the face plates 51 and 52.
And a reinforcing member 65 arranged at a corner (corner). The core 55, the connecting members 60 and 61, and the reinforcing member 65 are 2
It is arranged between the face plates 51 and 52. These are made of aluminum alloy. These members are integrally formed by brazing with the contacting members.

The connecting members 60 and 61 have a channel-shaped cross section, and have parallel horizontal pieces facing outward. The tip of this horizontal piece serves as a welded portion between the honeycomb panels 50, 50 or other structural members (for example, a beam or a bone in a vehicle body). The vertical pieces of the connecting members 60 and 61 are orthogonal to the face plates 51 and 52. Each piece is thick. The coupling members 60 and 61 also have a function as a strength member.

The face plates 51 and 52 are rectangular. The reinforcing member 65 is arranged at the corner of the honeycomb panel 50. The reinforcing member 65 has a triangular shape when viewed from the face plates 51, 52 side.
The angle of the oblique piece is 30 ° (60 °). The reinforcing member 65 includes a diagonal piece 65a and a triangular piece 65 that is in contact with the face plates 51 and 52.
b, 65c. The reinforcing member 65 is formed by bending a plate or welding the plate. Or, the extrusion mold material is 30 °
It is configured by cutting at (60 °). Alternatively, it is manufactured by casting. The contact surface between the reinforcing member 65 and the connecting members 60 and 61 is the end surface of the plate of the reinforcing member 65. When the contact surface is insufficient, each piece 65a, 65b, 65c of the reinforcing member 65 is bent to provide the contact surface. This contact surface should be close to the slope.

The core 55 is composed of a number of thin plates 55a arranged side by side. The plate 55a is orthogonal to the face plates 51 and 52. The cell S is in contact with the face plates 51 and 52. The end surface of the plate 55a of the corner core 55 is in contact with the oblique piece 65a of the reinforcing member 65. The core 55 is formed by brazing in advance, and is brazed again together with the face plates 51 and 52, the reinforcing member 65, and the connecting members 60 and 61. Or
The connecting members 60 and 61, the reinforcing member 65, and a number of plates 55a may be arranged on the face plate 52, and the face plate 51 may be placed and then brazed. In the latter case, the plate 55a is a plate bent to have hexagonal cells.

In brazing, a brazing material is placed on the surface next to each member. Plates 55a, 5 constituting the core 55
5a contact surfaces, face plates 51, 52 facing each other (that is, surfaces in contact with core 55, coupling members 60, 61, reinforcing member 65), coupling members 60, 61 vertical surfaces (that is, core 5).
5 and the surface in contact with the reinforcing member 65), the oblique piece 6 of the reinforcing member 65
5a (that is, the surface in contact with the core 55). By brazing, the plates 55a, 55a are connected to each other to form the core 55, and the core 55 includes the face plates 51, 52 and the connecting members 60, 61.
Of the reinforcing member 65, each surface of the reinforcing member 65 is connected to the flat plate 51, 52, the vertical surface of the connecting member 60, 61, the core 55, and each surface of the connecting member 60, 61. Is connected to the face plates 51 and 52, the reinforcing member 65, and the core 55. Of course, it is necessary to control the size of each contact surface so that brazing can be performed.

As described above, the honeycomb panel 50 having the reinforcing member 65 can be manufactured by a normal honeycomb panel brazing process. Therefore, it can be manufactured at low cost.

A connecting member 6 having orthogonal corners where stress concentrates
Since the linear reinforcing member 65 (in particular, the slanting piece 65a) is arranged at 0, the stress generated in each part can be reduced. Therefore, the thickness of the coupling members 60 and 61 can be reduced, the thickness of the face plates 51 and 52 can be reduced, the cells of the core 55 can be enlarged, and the weight can be reduced.

In FIG. 3, a plate 55 forming the core 55.
The longitudinal direction of a is the left-right direction (lateral direction). The core 55 is joined to the connecting member 61 arranged in the lateral direction. The position of the end of the plate 55a joined to the connecting members 60, 60 arranged in the vertical direction is set to be half of the length of the side parallel to the horizontal direction among the six sides forming the cell S of the substantially regular hexagon. The position. This is the same for the left and right ends of the plate 55a.

The reason why the angle of the inclined surface 65a of the triangular reinforcing member 65 is 30 ° (60 °) will be described with reference to FIG. The cell S of the core 55 is substantially a regular hexagon. Therefore, the corner S formed by the two sides of the cell S is formed.
If you connect e with a straight line, the angle of the straight line is 60 °
(30 °). That is, the angle is half the angle formed by the two sides that form part of the cell. Therefore, the positions of the end portions of the plurality of plates 55a in contact with the diagonal pieces 65a of the reinforcing member 65 are all corner portions Se. That is, in FIG. 3, a portion of the diagonal piece 65a substantially constitutes one side of the regular hexagonal cell S. However, when viewed from the individual plates 55a, there are the following two positions of the ends of the plate 55a. One of them is that the corner portion Se from the lateral side to the diagonal piece 65a in FIG.
This is the case when the end portion is 5a. The other one is shown in FIG.
In this case, the corner Se from the diagonal piece 65a to the side in the lateral direction is the end of the plate 56. The above two ends are alternately arranged. This is the same at the left and right ends. When viewed with one plate 55a, the positions of the left and right ends are the same.

Therefore, the cutting position of one plate 55a which is in contact with the oblique piece 65a of the reinforcing member 65 is line-symmetric in the longitudinal direction. Therefore, although there are two types of cutting positions, since the cutting is performed at the corners Se, the management of the cutting position becomes easy. This is easy to understand as compared with the case where the angle of the slope of the reinforcing member 65 is, for example, 45 °.

The embodiment shown in FIG. 4 is an example in which the cutting position of the plate 55a is a position other than the corner Se of the cell S. The cell S formed by the diagonal pieces 65a of the reinforcing member 65 does not have a regular hexagonal shape. Also by this, the distance from the corner portion Se can be set to two types, and the management of the cutting position is easy.

The position of the end of the plate 55a in contact with the connecting members 60, 60 may be the position of the apex of the hexagonal cell S. In this case also, the effect of 30 ° (60 °) is the same.

In the embodiment shown in FIG. 5, the oblique piece 65a of the reinforcing member 65 is used.
This is a case in which the angle formed by and the connecting member 61 is 30 °. The longitudinal direction of the plate 55a of the core 55 is parallel to the connecting member 61. Therefore, the inclination angle of the inclined piece 65a is set to the plate 55a.
Is 30 ° with respect to the longitudinal direction. According to this, FIG.
As is apparent from the above, the position of the end of the plate 55a in contact with the oblique piece 65a is the corner Se at the intersection of the oblique sides forming the cell S. The end of the plate 55a is orthogonal to the diagonal piece 65a. The cutting positions of all the plates 55a are the positions of the same corner portion Se. Therefore, work management can be facilitated. Board 55a
The same is true when the cutting position is set to the position of the side Sb orthogonal to the diagonal piece 65a.

In the embodiment of FIG. 6, the plate 55a is cut at the horizontal piece Sa of the cell S. Also in this case, the work management can be facilitated as in the case of FIG.

In the embodiment shown in FIG. 7, the honeycomb core 56 is arranged in the space within the reinforcing member 65 by brazing. According to this, as compared with the above-mentioned embodiment, the reinforcing member 6
The strength of the honeycomb panel 50 in the portion 5 can be improved. Therefore, the degree of stress in this portion can be further reduced.
In addition, the inclined piece 65a and the upper piece 65 on the core 56 side of the reinforcing member 65.
b, the lower piece 65b is provided with a brazing material so that it can be brazed. The core 56 is made of an aluminum alloy.

The embodiment shown in FIGS. 8 to 10 will be described. FIG. 10 shows the contact portions apart to show the direction of the plates 78a, 79a of the cores 78, 79.

A strength member 7 is provided in the vertical direction at the center in the left-right direction.
0 is set. The strength member 70 is a square pipe and is joined to the face plates 51, 52 and the core 55 by brazing. Further, the longitudinal end portion of the strength member 70 has a connecting member 6
It is joined to 1, 61 by brazing. Strength member 7
0 is thick. The reinforcing member 75 arranged at the corner is a plate, and there is no piece in contact with the face plates 51 and 52. The reinforcing member 75 is joined to the face plates 51 and 52 at the thickness of the plate. Reinforcement member 7
5 is a corner formed by the connecting members 60 and 61, and the connecting member 61
And the strength member 70. Two reinforcing members 75 are arranged in a V shape centering on the vicinity of the middle of the coupling member 60 and the strength member 70. The reinforcing member 75 is only the hypotenuse of the triangle. Honeycomb-shaped cores 78 and 79 are arranged in the spaces inside the two face plates 51 and 52.
The longitudinal direction of the plates 78a and 79a forming the cores 78 and 79 is the vertical direction. The length of the upper portion of the plate 79a of the core 79 arranged at the corner or in the vertical direction of each portion is shortened by the thickness of the reinforcing member 75. A brazing material is applied to each vertical surface of the strength member 70 and the reinforcing member 75. The strength member 70, the reinforcing member 75, and the cores 78 and 79 are made of aluminum alloy.

According to this, since the reinforcing member 75 is only the hypotenuse part of the triangle, it can be made lighter than the embodiment shown in FIG. Further, the cores 78 and 79 can be made to have the same height.

Since the reinforcing member 75 is plate-shaped, the contact area with the connecting members 60, 61 and the strength member 70 is small. 75
Reference characters a and 75b are contact pieces provided by bending the longitudinal ends of the reinforcing member 75, and include the connecting members 60 and 61 and the reinforcing member 7.
It becomes a contact part with 0. The contact pieces 75a and 75b are located in the cell. According to this, the generation of the unconfigured cell S can be prevented.

Another reinforcing member 75 close to the contact piece 75b
If there is, the two reinforcing members 7 are provided at the contact piece 75b.
Connect 5 to make one.

The strength member 70 is an aluminum alloy extruded mold material. The strength member 70 can be welded to the external strength member (bone member) 85 and the like via the face plates 51 and 52. Further, the strength member 70 can be a seat for fastening means such as a screw. The same applies to the coupling members 60 and 61. When the strength member 70 has a channel-shaped cross section, the side between the two parallel sides is in contact with the face plate 11.

In the embodiment of FIGS. 8 to 10 and FIG. 7, the size of the cell of the core 56 of the triangular member 56 on the corner side of the reinforcing member 75 or the diagonal piece 65a is changed to that of the cell of the core 55 of the other portion. If the size is smaller than the size, the strength of the corner portion is further improved. Although brazing is employed as the joining means of the respective members in the laminated panel of each of the above-mentioned embodiments, diffusion joining or resistance welding can be considered. The shape of the cell of the core is not limited to the hexagonal shape, and the inclination angle of the reinforcing member is set according to the shape of the cell.

In the embodiment shown in FIG. 11, the foam material 9 is applied to the cells S at the corners.
Filled with 0. On the lower face plate, connecting members 51, 5
2. After the core 55 is placed, the foam material 90 is put in the corners, the face plate is placed, and the brazing is performed by heating. Since the foam material 90 foams by heating during brazing, it can be manufactured at the same time when brazing.

The examples shown in FIGS. 12 to 14 show the case where a vehicle body of a railway vehicle is constructed by using the honeycomb panel 50 described above. The vehicle body of a railroad vehicle includes a floor portion 100, a wall portion (side portion) 200 along the longitudinal direction of the vehicle, a roof portion 300, an intermediate portion 400 connecting the wall portion 200 and the roof portion 300, and the like. These parts 100, 200, 300,
In 400, the honeycomb panels 50 having a predetermined length are arranged along the longitudinal direction of the vehicle, and the joining members 60 are welded together to be integrated. And each part 200, 300, 400
The horizontal connecting members 61 are welded together to form a vehicle body. Although not shown, the strength member 70 is incorporated in the wall portion 200, the roof portion 300, and the intermediate portion 400 in the vertical direction and the horizontal direction, if necessary. This built-in strength member 70
The joint members 60 and 61 serve as mounting seats for bone members and interior members, if necessary. A coupling member 60 arranged in the circumferential direction of the vehicle body,
The strength members 70 are arranged in one row in the circumferential direction.

The application of the honeycomb panel 50 to the floor 100 is shown in FIGS. The floor portion 100 includes a honeycomb panel 50 that serves as a floor and an underframe. The underframe includes a side beam 210 along the longitudinal direction of the vehicle and a lateral beam 220 connecting the two side beams 210. The honeycomb panel 50 is mounted on this underframe. The joining member 61 of the honeycomb panel 50 is welded to the side beam 210. In the honeycomb panels 50, the upper and lower horizontal pieces of the joining members 60, 60 are welded to each other. In addition, the horizontal piece below the connecting members 60, 60 is the cross beam 2.
Welded to 20.

Side portion 200, middle portion 400, roof portion 300
Is an arc shape. Therefore, the plate 55 of the honeycomb core 55 is
The longitudinal direction of a and 78a faces the longitudinal direction of the vehicle.
After forming the honeycomb panel 50 by brazing, bending is performed. The honeycomb panel 50 of the side portion 200 has a window 210. After the honeycomb panel having the window frame member 211 arranged between the face plates 51 and 52 is brazed,
Bend and drill holes 210. The frame material 211 is subdivided so that it can be bent. The arc-shaped panel can also be manufactured as follows. The lower arc-shaped face plate 52 is placed on the lower arc-shaped mold, and the coupling members 60, 6 are placed on this.
1, the strength member 70, the reinforcing members 65 and 75, the multiple plates 55a and 78a of the honeycomb cores 55 and 78, and the frame member 211 are placed, then the upper arc-shaped face plate 51 is placed, and the upper die is pressed down. Perform brazing work. The lower mold has a concave upper surface, and the upper mold has a downward convex. The connecting members 60 and 61, the strength member 70, the reinforcing members 65 and 75, and the frame member 211 are the face plates 5.
The surface in contact with 1, 52 is arcuate. In addition, this surface is finished smooth. When the cross section of the strength member 70 has a channel shape, the side between the two parallel sides is an inner arc surface. The plates 55a and 78a of the honeycomb cores 55 and 78 are arranged such that their longitudinal directions are orthogonal to the direction of the arc of the mold (the longitudinal direction of the vehicle). Therefore, the plates 55a and 78a
Is orthogonal to the curved surface of the arc-shaped face plate 52, the ends of the plates 55a and 78a located inside in the radial direction contact each other,
The outer ends are separated from each other. If the distance between the separated portions is small, the ends are joined by a brazing material. Therefore, an arc-shaped panel can be obtained.

[0037]

According to the present invention, it is possible to provide a honeycomb panel capable of relieving stress concentration at corners. Also,
The reinforcing member is a 30 degree (60 degree) angle with respect to the hexagonal cell.
Since it is arranged in degrees, the edge of the core plate that contacts the reinforcing member
The position of the part can be made almost constant from the cell at the end.
This makes it easy to cut the plate in the longitudinal direction.
It

[Brief description of drawings]

FIG. 1 is a plan view of a laminated panel according to an embodiment of the present invention.

2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is an enlarged plan view of a main part of FIG. 1;

FIG. 4 is a plan view of a main part of a laminated panel according to another embodiment of the present invention.

FIG. 5 is a plan view of a main part of a laminated panel according to another embodiment of the present invention.

FIG. 6 is a plan view of a main part of a laminated panel according to another embodiment of the present invention.

FIG. 7 is a plan view of a main part of a laminated panel according to another embodiment of the present invention.

FIG. 8 is a plan view of a laminated panel according to another embodiment of the present invention.

9 is a sectional view taken along line 9-9 of FIG.

FIG. 10 is an enlarged plan view of a main part of FIG.

FIG. 11 is a plan view of a main part of a laminated panel according to another embodiment of the present invention.

FIG. 12 is a perspective view of a vehicle body of a railway vehicle according to an embodiment of the present invention.

13 is a plan view of the floor of FIG.

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

[Explanation of symbols]

50 ... Honeycomb panel, 51, 52 ... Face plate, 55, 5
6, 78, 79 ... Core, 55a, 78a, 79a ... Plate,
60, 61 ... Coupling member, 65, 75 ... Reinforcing member, 65a
... oblique piece, 70 ... strength member, S ... cell.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Susumu Hirose 794 Azuma Higashitoyo, Shimomatsu City, Yamaguchi Prefecture Inside the Kasado Plant, Hitachi, Ltd. Mfg. Co., Ltd., Kasado Plant (56) References JP-A-3-90468 (JP, A) Actual development 1-143668 (JP, U) Actual exploitation Sho 59-47012 (JP, U) Actual exploitation Sho 55-21148 ( JP, U) Actual development Sho-58-43471 (JP, U) Actual public 1-444196 (JP, Y2)

Claims (11)

(57) [Claims] 1. A quadrangular face plate, a plate for joining the two face plates, the core having plates substantially at right angles to the face plate, and a core having substantially regular hexagonal cells, and an edge of the face plate. A joint member that is disposed along the joint and that is joined to the two face plates, and that is arranged as necessary, and that is disposed between the two face plates and between the cores and that is joined to the two face plates. A member, a portion formed by the coupling member and the coupling member substantially orthogonal thereto, or a portion formed by the coupling member and the strength member substantially orthogonal thereto, the portion of The joining member, a linear reinforcing member arranged to be inclined with respect to the strength member, and an angle formed by the longitudinal direction of the joining member or the strength member of the portion and the longitudinal direction of the reinforcing member is Substantially 30
The end of the reinforcing member is located in the vicinity of the coupling member and the strength member, the reinforcing member is located in the vicinity of the end of the core, and the reinforcing member is part of the A laminated panel, comprising: a joining member, the strength member, and at least one of the two face plates. 2. The laminated panel according to claim 1, wherein the core is provided by arranging plates in parallel, and an angle formed by a longitudinal direction of the plates and a longitudinal direction of the reinforcing member is set to substantially 30 degrees. The laminated panel characterized by being. 3. The laminated panel according to claim 2, wherein the length of the side of the end portion of the core contacting the reinforcing member, which constitutes the cell, is the length of the cell of the core contacting the coupling member and the strength member. A laminated panel, which is substantially the same in length as the constituent sides. 4. The laminated panel according to claim 1, wherein the reinforcing member is joined to each of the two face plates. 5. The laminated panel according to claim 1, wherein both ends of the reinforcing member in the longitudinal direction are respectively joined to the two strength members. 6. The laminated panel according to claim 5, wherein each end of the reinforcing member in the longitudinal direction is provided with a piece joined to the strength member, and the piece is located in the cell of the core. Laminated panels. 7. The laminated panel according to claim 1, wherein the reinforcing member has a piece joined to each of the face plates.
Laminated panel characterized by. 8. The laminated panel according to claim 7, wherein the piece joined to the face plate has a substantially triangular shape when viewed from the face plate side. 9. The laminated panel according to claim 1, wherein the cores are provided on both sides of the reinforcing member substantially orthogonal to the face plate. 10. The laminated panel according to claim 9, wherein the size of the cell of the core arranged in the triangular portion on the corner side of the reinforcing member is smaller than the size of the cell of the core in other portions, Laminated panel characterized by. 11. A quadrangular face plate, a joint for joining the two face plates, a core having plates at substantially right angles to the face plate and having substantially regular hexagonal cells, and an edge of the face plate. A joint member that is disposed along the joint and that is joined to the two face plates, and that is arranged as necessary, and that is disposed between the two face plates and between the cores and that is joined to the two face plates. A member, a portion formed by the coupling member and the coupling member substantially orthogonal thereto, or a portion formed by the coupling member and the strength member substantially orthogonal thereto, the portion of The joining member, a linear reinforcing member arranged to be inclined with respect to the strength member, and an angle formed by the longitudinal direction of the joining member or the strength member of the portion and the longitudinal direction of the reinforcing member is Substantially 30
The end of the reinforcing member is located in the vicinity of the coupling member and the strength member, the reinforcing member is located in the vicinity of the end of the core, and the reinforcing member is part of the A laminated panel, which is joined to at least one of the joining member, the strength member, and the two face plates, is used as at least one of the floor member, the roof member, and the wall member along the longitudinal direction of the vehicle. A vehicle in which the coupling member is welded to a third member.