JPH09216560A - Laminated member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a laminated member of a light weight and a high strength, by soldering a second members for combining with a rectangular pipe, to core members, between two sheets of front members, so as to form the laminated member. SOLUTION: Outer plate members 13a and 13b are composed of a laminated member in which front members 14 and 15 are provided, and core members 16 and members 19 for combining are soldered between the front members 14 and 15. That is, the second members 19 for combining used at the parts the side pillars 9 of the outer plate 13a are jointed are made in a rectangular pipe, and their height is made in the same height as the core members 16. The core members 16 are provided between the members 19 and at both sides of the members 19, and the front members 14 and 15, the core members 16, and the members 19 for combining are jointed by a soldering. The flanges at both ends of the side pillars 9 are provided corresponding to the members 19 for combining, and jointed by welds 20. As a result, the car body can be made at a high strength, compared with a structure only welded to the front member 14.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a vehicle body of a railroad vehicle is generally made of an iron material or a light alloy such as an aluminum material. The vehicle body made of an iron-based material is lightened by reducing the thickness of the outer plate and the bone member, but there is a limit to weight reduction because strength and rigidity must be secured. On the other hand, in a vehicle body made of a light alloy material, an outer plate and a skeleton member are integrally formed by extruded shape members to reduce the number of parts and reduce the weight. However, there is a limit to how thin the extruded material can be made to correspond to the outer skin, and it is not possible to achieve a sufficient weight reduction and the rigidity of the extruded material itself decreases. It wasn't enough.

In view of such a situation, in recent years, there has been known a vehicle body using a honeycomb structure made of a light alloy, that is, an aluminum honeycomb material. As a related structure using this aluminum honeycomb material, for example, the actual development of Shokai 5
4-183007, Jitsukai Sho 60-179569 and the like.

[0004]

The aluminum honeycomb material used in the above-mentioned prior art has a structure in which the surface material and the core material are joined by an adhesive made of synthetic resin, and sufficient strength reliability is obtained. However, there is a problem that the strength may decrease due to aging. Also,
The aluminum honeycomb material has a structure in which the surface material and the core material are simply bonded together, and the end surface of the aluminum honeycomb material is left open, so that it can be joined to other strength members by rivets or bolts and nuts. Had to be done by. Sufficient consideration has not been given to improving the strength of the joint with the strength member and reducing the man-hours involved in the joint.

By the way, 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 the vehicles rub against each other in the tunnel, the pressure fluctuation is large and maximum. As described above, the pressure load acts on the vehicle body of the railway vehicle traveling at high speed, and the loads of passengers and various devices also act on the vehicle body. Therefore, it is necessary to improve strength and rigidity.

An object of the present invention is to provide a lightweight and high-strength laminated material.

[0007]

DISCLOSURE OF THE INVENTION According to the present invention, two surface materials, a core material arranged between the two surface materials, and an outer peripheral portion of the surface material between the two surface materials. In the laminated material, which comprises the first coupling member arranged in the above, and the core material and the first coupling member are brazed to the two surface materials, the laminated material is the two surface materials. And a second connecting member that is disposed between the core members and brazed to the two surface members, and the second connecting member is a square pipe.

In such a structure, a bone member (for example, a side pillar in the case of a side structure of a vehicle body, a rafter in the case of a roof structure) is welded to a second connecting member incorporated via a surface material of a laminated material. Therefore, the strength can be increased as compared with the case where the bone member is welded only to the surface material. For this reason,
It is lightweight and has high strength.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, reference numeral 1 is a vehicle body of a railway vehicle, which is composed of a side structure 2, an underframe 3, a roof structure 4, and a gable structure 5. Reference numeral 6 is a side beam that constitutes the underframe 3, and is arranged at both sides of the underframe 3 in the vehicle width direction so as to extend in the vehicle longitudinal direction. Reference numeral 7 denotes a lateral beam which is arranged between the side beams 6 so as to extend in the width direction of the vehicle body, and an end portion thereof is joined to a side surface 6 a of the side beam 6. The lateral beams 7 are arranged between the side beams 6 in parallel at a predetermined pitch in the longitudinal direction of the vehicle body. Reference numeral 8 denotes a floor plate installed on the plurality of lateral beams 7, which is composed of a plurality of light alloy extruded shape members, and integrally formed ribs are formed on the indoor side. Further, the floor plate 8 is formed such that its cross section in the vehicle width direction is a curved surface which is convex outside the vehicle, that is, downward. 9
Is a side pillar that constitutes the side structure 2. 11 is the eaves girder,
12 is a curtain plate that forms the upper corner of the vehicle body, that is, the shoulder portion,
The eaves girder 11 and the curtain plate 12 are integrally formed as a light alloy extruded shape member. In addition, the eaves girder 11 and the curtain plate 1
2 is arranged so as to extend in the longitudinal direction of the vehicle body. The side pillar 9 has a structure in which the upper end portion thereof is curved toward the center side in the vehicle width direction, and the upper end portion is joined to the eaves girder 11.
On the outer surface of the side pillar 9, the curtain plate 12 is joined upward,
In addition, an outer plate member 13a, which will be described later, is joined below. An opening corresponding to the side window portion 17 is formed in the outer plate member 13a constituting the side structure 2, and a window glass receiver 18 is installed around the side window portion 17. Reference numeral 10 denotes a rafter constituting the roof structure 4, which is arranged so as to extend in the vehicle width direction, and an outer plate member 13b described later is joined to the outer surface thereof. Further, the rafters 10 are arranged in parallel at a predetermined pitch in the longitudinal direction of the vehicle body.

The outer plate members 13a and 13b are basically made of a laminated material in which the surface members 14 and 15 and the core member 16 arranged between them and the connecting member are brazed and integrated. A plurality of laminated materials are welded to form one outer plate 13a,
13b. The structure and position of the connecting member differ depending on the position where the outer plate member is used or the joint relationship with other strength members (for example, side beams, eaves girders, adjacent laminated members, and bone members).

The details will be described below. First, the outer plate member 1
The second connecting member 19 used in the portion to which the side column (bone member) 9 of 3a is joined has a rectangular cross-sectional shape (that is, a square pipe) and is similar to the core member 16. It has a high height. Further, the connecting members 19 are arranged in the outer plate member at intervals corresponding to the width dimension of the side pillars 9, the surface thereof is completely covered by the surface members 14 and 15, and A core material 16 is arranged between and on both sides thereof. The surface members 14 and 15, the respective core members 16 and the joining members 19 are joined by brazing, and the respective core members and joining members 19 are also joined by brazing. With respect to the outer plate member 13a configured as described above, the side pillars 9 are arranged such that both end flange portions thereof correspond to the installation positions of the coupling members 19, and the tip end of each flange portion is formed with the welded portion 20. To join. The welded portion 20 is formed so that the side pillar 9, the surface member 14, and the joining member 19 are respectively melted.

As described above, since the side pillars 9 of the frame members are welded to the second connecting members 19 and 19 which are built in via the surface material 14 of the laminated material, when welding only to the surface material 14. Compared with this, the body can be made stronger. Therefore, it is possible to provide a lightweight vehicle body having excellent pressure resistance. Further, since the second connecting member is a square pipe, it is lightweight and has a surface member 14,
It is possible to easily carry out the joining with 15 or the like and the joining with the bone member.

Next, the structure of the portion of the outer plate member 13b to which the rafter 10 as a bone member is joined will be described with reference to FIG. Like the outer plate member 13a, the outer plate member 13b also has a structure in which a coupling member 19 is arranged inside.
However, the width dimension of the joining member 19 is slightly longer than the width dimension of the flange of the joint portion of the rafter 10. The arrangement of the connecting members 19 corresponds to the installation position of the rafter 10. Also in the outer plate member 13b, the surface material 1
4 and 15, the core material 16, and the connecting member 19 are joined by brazing. The rafter 10 is joined to the thus configured outer plate member 13b by forming a welded portion 20. The welded portion 20 includes a rafter 10,
The surface member 15 and the joining member 19 are formed so as to be melted into each other.

Next, the structure of the side window portion 17 of the outer plate member 13a will be described with reference to FIG. The connecting member 21 is formed in a rectangular cross section similarly to the connecting member 19, and is integrally formed with a flange portion corresponding to the windowpane bridge 18 extending from the position corresponding to the outer surface of the vehicle body toward the center of the opening. Is formed in. A step portion 21b having a depth corresponding to the plate thickness of each surface material is formed in a portion of the joining member 21 where the surface materials 14 and 15 are joined. The surface materials 14 and 15 are joined to the step portion 21b. Therefore, the outer surface of the joining member 21 is configured to be smooth including the outer surface of the windowpane receiver 18 in the state where the surface member 14 is joined. The surface materials 14 and 15, the core material 16,
The joining members 21 are joined to each other by brazing. In particular, the web 21 a of the joining member 21 is joined to the core member 16 so that the load can be transmitted.

By the way, if each stepped portion 21b of the connecting member 21 has a depth shallower than the plate thickness of the surface member 14 or 15, a plurality of the above-mentioned constituent members are brazed. This is advantageous when the outer plate members are stacked and pressure-bonded.
That is, the crimping load can be transmitted between the surface materials of the outer plate members. A plurality of outer plate members can be formed at one time.

Next, the structure of the portion for joining the outer plate members will be described with reference to FIG. The first coupling member 22 constituting the outer plate member 13a has a U-shaped cross section, and its opening is open in the outer edge direction of the laminated material. The two parallel U-shaped pieces are in contact with the surface members 14 and 15. The surface members 14 and 15, the core member 16, and the joining member 22 are joined to each other by brazing. The web of the connecting member 22 is also joined to the core material 16. The outer plate member 13a configured as described above is welded to the welded portion 20 in a state where the end faces of the coupling members 22 at the respective outer peripheral portions are abutted.
To form a joint. The welded portion 20 is formed so that the surface material 14 or 15 and the connecting member 22 are melted.

In the above description, the outer plate member 13a is described, but this structure can be similarly applied to the outer plate member constituting the roof structure or the end structure.

Next, the structure of the joint between the outer plate member 13a and the side beam 6 forming the underframe 3 will be described with reference to FIG. A joining member 23 is joined to an end portion of the outer plate member 13a that is joined to the side beam 6 so as to extend in the vehicle body longitudinal direction.
The joining member 23 has a rectangular cross-section similar to the joining member 21 shown in FIG. 5 at the portion where the surface members 14 and 15 and the core member 16 are joined, and the joining members 23 and 15 are joined together. A stepped portion is formed at the portion where is joined. Below the connecting member 23, flange portions 23a and 23b are formed corresponding to the upper portions of the side beams 6.
The surface materials 14 and 15 and the core material 16 are joined to the rectangular cross section of the joining member 23 by brazing. Surface material 14, 1
5 correspond to the stepped portions of the rectangular cross section, and
The core materials 16 are bonded to each other in correspondence with the web. In the outer plate member 13a configured in this manner, the flanges 23a and 23b of the coupling member 23 are welded to the upper ends of the side beams 6, respectively.
Joined to.

Next, the structure of the joint between the outer plate member 13b and the eaves girder 11 will be described with reference to FIG. Outer plate member 13b
A joining member 24 is joined to an end portion of the eaves girder 11 connected to the eaves girder 11 so as to extend in the vehicle body longitudinal direction. The joining member 24 has a rectangular cross section at a portion where the surface materials 14 and 15 and the core material 16 are joined, and a step portion for joining the surface materials 14 and 15 is formed at the rectangular cross section portion. At the connecting portion of the rectangular cross section to the eaves girder 11, each tip portion has the eaves girder 11
The flange portions 24a, 24b are formed at intervals so that they can be overlapped with the respective flange portions 11b, 11c. The surface members 14 and 15 and the core member 16 are joined to the rectangular cross section of the joining member 24 by brazing.
The surface materials 14 and 15 are made to correspond to the stepped portions of the rectangular cross-section, and the core material 16 is made to correspond to the web, respectively. The outer plate member 13b formed in this way
Is joined to the eaves girder 11 by forming the welded portion 20 by superimposing the tip end portions of the flange portions 24a and 24b of the coupling member 24 on the flange portions 11a and 11b of the eaves girder 11. In addition, the eaves girder 11 is the flange portion 11
It is composed of b and 11c and a web 11a connecting them, and the cross section thereof is formed in a U-shape in which a portion for joining the outer plate member 13b is opened. Also, the eaves girder 1
As described above, 1 is formed of an extruded shape member integrally with the curtain plate 12.

According to this structure, each outer plate member 13
Since a and 13b are composed of the light alloy surface members 14 and 15, the core member 16 and the connecting members 19, 21, 22, 23 and 24, the conventional light alloy outer plate and skeleton are combined or skeleton. Rather than extruded profile that integrally formed the member and outer plate,
If they have the same strength and rigidity, they can be made lighter. In addition, each of the outer plate members 13a and 13b has a surface member 1
4, 15 and the core member 16 and the connecting members 19, 21, 2
Not only between 2, 23, 24, but also the core material 16 and the web of each coupling member 19, 21, 22, 23, 24 are joined by brazing, so that each coupling member 19, 21, 2,
The load can be smoothly transferred from 2, 23, 24 to the surface materials 14, 15 or the core material 16 without locally concentrating, and the strength of these joint portions can be improved. Therefore, these outer plate members 13a or 13b
Is joined to other strength members, that is, the side columns 9, the rafters 10, the side beams 6 and the eaves girders 11, various loads can be smoothly transmitted from the strength members to the outer plate members 13a or 13b. As a result, the strength and rigidity of the entire vehicle body 1 can be improved. Further, smoothing of the load transmission is particularly effective against the pressure variation outside the vehicle that occurs during traveling of the vehicle in the tunnel, and thus the pressure resistance of the vehicle body 1 can be improved.

Next, since the connecting members 19, 21, 23 and 24, which constitute the outer plate member 13a or 13b, have a rectangular cross section, they have high out-of-plane bending rigidity and the vehicle body 1 Is effective in improving the pressure resistance of the. Further, since the connecting member 22 is also formed in a U-shaped cross section, the connecting member 22 has a rectangular cross section when joined to another outer plate member, so that the same effect as each of the connecting members can be achieved. . Further, since the connecting members 23, 24 are installed at the side beam 6 or the connecting portion with the eaves girder 11 of the vehicle body 1 where a large load acts, the flange portions 23a, 23b or 24a, 24a, 24b is formed, and a box-shaped section having a long vertical dimension can be formed by joining the side beam 6 or the eaves girder 11. Therefore, the side beam 6
Alternatively, the strength that can be placed on the eaves girder 11 can be improved, and the strength and rigidity of the entire vehicle body 1 can be improved.

Particularly, since the connecting member 22 having a U-shaped cross section is arranged on the outer peripheral portions of the outer plate members 13a and 13b, the force transmission between the surface members 14 and 15 and the connecting member 22 is facilitated. Is something that can be done. Then, the outer plate members 13a, 1
In joining 3b, joining members 22 and 22 having a U-shaped cross section
2 parallel pieces are welded to two pieces of the joining members of the adjacent outer plate members. The surface materials 14 and 15 are also welded. Therefore, this joint has a cross-sectional shape similar to that of a structural member having a box-shaped cross section (closed cross section), and the strength is improved. Further, since the surface materials 14 and 15 are welded together with the pieces, the surface materials can be surely joined. In addition, the connecting member 22 is the core member 16
Since it is brazed to, the force can be reliably transmitted. . Therefore, the strength of the joint portion between the outer plate members 13a and 13b can be improved and the weight can be reduced.

By the way, in the description of the above embodiment,
Although the outer plate member used for the side structure and the roof structure has been described, the present invention is not limited to this, and the same effect can be achieved even when the outer plate member is used for the end structure. Further, the same effect can be achieved by using only the side structure of the vehicle body, the roof structure, or the end structure.

[0024]

According to the present invention, a lightweight and high-strength laminated material can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view of an example of a railway vehicle body according to the present invention with a vehicle end section taken as a cross section.

FIG. 2 is a perspective view showing the entire railway vehicle body of FIG.

FIG. 3 is a sectional view taken along the line AA of FIG. 2;

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

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

6 is a cross-sectional view showing a portion where outer plate members are joined to each other in the vehicle body shown in FIG.

FIG. 7 is an enlarged cross-sectional view of section D in FIG.

FIG. 8 is an enlarged cross-sectional view of a portion E of FIG.

[Explanation of symbols]

1 ... Car body, 2 ... Side structure, 3 ... Underframe, 4 ... Roof structure, 5 ...
Wife structure, 6 ... Side beam, 9 ... Side pillar, 10 ... Rafter, 11 ... Eaves girder, 13a, 13b ... Outer plate member, 14, 15 ... Surface material, 1
6 ... Core material, 19, 21, 22, 23, 24 ... Bonding.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takenao Okumoto 794 Azuma Higashitoyoi, Shimomatsu, Yamaguchi Prefecture Stock company Hitachi Kasado Plant (72) Inventor Mamoru Ohara 794 Azuma Higashitoyo, Shimomatsu City, Yamaguchi Prefecture Hitachi Co., Ltd. Kasado Factory

Claims (2)

[Claims] 1. A first connecting member disposed between two surface materials, a core material disposed between the two surface materials, and an outer peripheral portion of the surface material between the two surface materials. In the laminated material, which is formed by brazing the core material and the first coupling member to the two surface materials, the laminated material is provided between the two surface materials. And a second connecting member brazed to the two surface materials, wherein the second connecting member is a square pipe. 2. The laminated material according to claim 1, wherein the second coupling member is brazed to the core material.