JPH07205807A - Car body of railway rolling stock - Google Patents

Abstract

PURPOSE:To obtain a car body of a railway rolling stock having a light weight and a pressure-proof property, by composing an outer plate member with two sheets of front members made of a light alloy, and a core member, arranging a connecting member between the front members at the peripheral end face of the core member, and soldering the front members, the core member, and the connecting member each other. CONSTITUTION:An outer plate, member 13a (13b) is composed of front members 14 and 15 made of a light alloy, a core member 16 provided between the front members, and a connecting member 22. The connecting member 22 to compose the outer plate member 13a has a V-shaped cross section, and its opening is positioned in the outer peripheral direction. The front members 14 and 15, the core member 16, and the connecting member 22 are connected each other by a soldering. And the web of the connecting member 22 is also connected to the core member 16. The plural outer plate members 13a composed in such a way are connected by forming welds 20 in the condition to butt the end faces of the connecting members 22 to the outer periphery parts of the members 13a respectively. The welds 20 are formed by melting the front member 14 or 15, and the connecting member 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railcar body,
In particular, the present invention relates to a rail car body that is suitable for running 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 made lighter by making the outer plate and the bone member thinner, but there is a limit to the 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 the thickness of the extruded profile that corresponds to the outer skin, and it is not possible to achieve sufficient weight reduction and the rigidity of itself decreases, so that the strength and rigidity of the entire vehicle body are secured. Was not enough in.

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 railcar body which is lightweight and has excellent pressure resistance.

[0007]

In order to achieve the above object, in a railway vehicle body constituted by combining and connecting an underframe, a side structure, a roof structure and a gable structure, at least one of the structures The outer plate member constituting one is composed of two light alloy surface materials and a core material, and a coupling member is arranged between the surface materials on the outer peripheral end surface of the core material, and the surface material ，
The core member and the joining member are joined together by brazing.

[0008]

In the outer plate member, since each surface material and the core material are joined by brazing, and each surface material and the core material and the connecting member are also joined by brazing,
The strength of the outer plate member itself is high. Further, even when another strength member is joined to the joining member, the force is smoothly transmitted from the strength member to the entire outer plate member without locally concentrating, so that at the joint portion with the strength member. It is possible to prevent the strength from decreasing. Therefore, since the outer plate member itself is lightweight and sufficient strength can be secured even at the joint portion with another strength member, by using the outer plate member as a structure constituting the vehicle body, It is possible to reduce the weight and improve the pressure resistance.

[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. 6 is a side beam that constitutes the underframe 3,
The underframe 3 is arranged on both sides of the undercarriage in the width direction of the vehicle so as to extend in the longitudinal direction of the vehicle. 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 disposed on the plurality of lateral beams 7, which is made 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 the side structure 2
It is a side pillar that constitutes. Reference numeral 11 is an eaves girder, and 12 is a curtain plate forming an upper corner of the vehicle body, that is, a shoulder portion.
The curtain plate 12 is integrally formed as a light alloy extruded shape member. Further, the eaves girder 11 and the curtain plate 12 are 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 to the upper side, and an outer plate member 13a described later is joined to the lower side. 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 arranged 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 composed of surface members 14 and 15, a core member 16 arranged between them, and a connecting member. The structure of the connecting member differs depending on the position where the outer plate member is used or the connecting relationship with another strength member. The details will be described below. First, the structure of the portion of the outer plate member 13a to which the side column 9 is joined will be described with reference to FIG. The connecting member 19 used in the portion to which the side pillar 9 is joined has a rectangular cross-sectional shape, and has the same height dimension as the core material 16. 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 core members 16 and the joining members 19 are joined by brazing, and
The core members and the connecting members 19 are also joined by brazing. With respect to the outer plate member 13a configured as described above, the side pillars 9 have their both side flange portions connected to the respective connecting members 19a.
The welding is performed by arranging the ends of the flanges so as to form the welded portions 20 and joining them. The weld 2
0 is formed so that the side pillar 9, the surface member 14, and the joining member 19 are melted into each other.

Next, the structure of the portion of the outer plate member 13b to which the rafter 10 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 members 14 and 15, the core member 16, and the joining 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 is formed such that the rafter 10, the surface member 15 and the connecting member 19 are 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 the depth of each step portion 21b of the joining member 21 is made shallower than the plate thickness dimension of the surface member 14 or 15, a plurality of the above-mentioned respective component members are brazed. This is advantageous when the outer plate members are stacked and pressure-bonded.
That is, the pressure bonding load can be transmitted between the surface materials of each outer plate member, and 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 coupling member 22 forming the outer plate member 13a has a U-shaped cross section, and its opening is located in the outer peripheral direction. Surface materials 14 and 15,
The core material 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 joined by forming the welded portion 20 in a state where the end faces of the joining members 22 of the respective outer peripheral portions are abutted. 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 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 step 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. The surface materials 14 and 15 are made to correspond to the stepped portions of the rectangular cross section, and the core material 16
Are joined to correspond to the web. The outer plate member 13a thus configured and the side beams 6 are joined to the side beams 6 by forming the welded portions 20 on the upper ends of the coupling members 23, respectively.

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 joint portion of the rectangular cross section to the eaves girder 11, each tip portion is the eaves girder 1
The flange portions 24a and 24b are formed at intervals so that they can be superposed on the respective flange portions 11b and 11c. The surface members 14 and 15 and the core member 16 are joined to the rectangular cross section of the connecting 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 13 formed in this way
b is joined to the eaves girder 11 by forming the welded portion 20 by superimposing the respective tip end portions of the flange portions 24a and 14b of the coupling member 24 on the flange portions 11a and 11b of the eaves girder 11. The eaves girder 11 is the flange 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 by extrusion forming integrally with the curtain plate 12.

According to such a configuration, each outer plate member 13
a, 13b Light alloy 14 and 15, core member 16 and connecting members 19, 21, 22, 23 and 24 are combined, so that a conventional light alloy outer plate and frame combination or a bone member and outer member are used. When it has the same strength and rigidity as the extruded shape material in which the plate is integrally formed, the weight itself can be reduced. Further, the outer plate members 13a and 13b have the surface members 14 and 15 respectively.
And the core member 16 and the connecting members 19, 21, 22, 23,
24 as well as between the core material 16 and each of the coupling members 19, 2
Since the webs of 1, 22, 23, and 24 are joined by brazing, the connecting members 19, 21, 22, 23, and
The load is smoothly transmitted from 24 to the surface materials 14 and 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 are replaced with other strength members, that is, the side columns 9, the rafters 10, the side beams 6 and the eaves girders 11.
When joined to each other, various loads can be smoothly transmitted from the respective strength members to the respective 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, the out-of-plane bending rigidity is high.
This is effective in improving the pressure resistance of the vehicle body. 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 coupling members 23 and 24 are installed at the joints with the side beam 6 or the eaves girder 11 of the vehicle body 1 on which a large load acts, the flange portions 23 have a predetermined interval.
By forming a, 23b or 24a, 24b and joining with the side beam 6 or the eaves girder 11, a box-shaped cross section having a long vertical dimension can be formed. Therefore, the strength of the side beam 6 or the eaves girder 11 can be improved, and the strength and rigidity of the entire vehicle body 1 can be improved.

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. Also, the same effect can be achieved by using only the side structure of the vehicle body, the roof structure, or the end structure.

[0021]

According to the present invention, it is possible to provide a railcar body which is lightweight and has excellent pressure resistance.

[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.

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 ... Coupling member.

Front page continued (72) Inventor Takenao Okumoto Yamato Pref. Higashi-Toyoi 794, Higashi-Toyoi Stock Company Hitachi Kasado Factory (72) Inventor Mamoru Ohara 794 Higashi-Toyoi, Shimomatsu City Yamaguchi Prefecture Inside the Kasado Factory

Claims (3)

[Claims] 1. In a railway vehicle body constructed by combining and joining an underframe, a side structure, a roof structure and a gable structure, an outer plate member constituting at least one of the structures is made of a light alloy. It is composed of two surface materials and a core material, and a connecting member is arranged between the surface materials on the outer peripheral end surface of the core material, and the surface material, the core material and the connecting member are brazed to each other. A railcar body characterized by being joined by. 2. The railcar body according to claim 1, wherein the coupling member is wholly disposed between the two cover members. 3. The railcar vehicle body according to claim 1, wherein a part of the coupling member is exposed to the outside of the surface member.