JPH07304448A - Railway vehicle structure - Google Patents

Abstract

PURPOSE:To provide the structure for rolling stock having high rigidity capable of withstanding the pressure load applied to it at the time of a high-speed travel and made lightweight. CONSTITUTION:The eaves interior, i.e., shoulder section, connecting the side beams 6 of an underframe 3, side structures 2, and a roof structure 4 constituting the structure 1 for rolling stock is formed with an extruded shape (hollow member) 20 having a closed cross section, and the other is formed with a laminated panel connected with a face plate and a core made of a light alloy by brazing. The rigidity of the whole structure can be improved, the weight of the whole structure can be sharply reduced, and the structure 1 for the rolling stock easy to manufacture can be provided.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art As a structural structure of a railroad vehicle which is lightweight and suitable for high speed traveling, a structural structure using a brazing laminated panel made of a light alloy is provided. A laminated panel is one in which a laminated core, a reinforcing material, and a joining member are arranged between two face plates forming a pair and brazed together. The material is made of aluminum alloy. The coupling member is arranged around the face plate and serves as a strength member. Adjacent panels are welded together at the connecting members to form a side structure and a roof structure, and these structures are joined by welding to form a vehicle structure. Such a structure is disclosed, for example, in Japanese Patent Laid-Open No. 05-136296.

[0003]

In recent years, railway cars have tended to increase in speed, but with the increase in speed, the impact on tracks increases,
Since problems such as an increase in noise generated during traveling, an increase in operating power cost, and an increase in brake energy for stopping occur, it is necessary to reduce the weight of the entire railway vehicle. In order to reduce the weight of a vehicle, it is essential to reduce the weight of the structure that occupies a large weight.

It is also 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, and a large pressure load acts on the structure. Further, it is known that this pressure load has a speed dependency proportional to the square of the traveling speed. 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, which is difficult to achieve.

It is highly feasible to construct the roof structure and the side structure with laminated panels in order to satisfy the contradictory conditions of improving the rigidity and reducing the weight of the structure.

However, since the eaves, which are the joints between the roof structure and the side structures, are generally curved members with a small radius, there is a concern that the production and processing of the laminated panel itself will be complicated. Further, since the eaves member becomes an inflection point of stress, it is necessary to install a large number of reinforcing materials, which causes a problem of increasing the number of manufacturing steps.

Further, in the side structure having a window, a large stress is generated around the window, and therefore it is necessary to make it strong. For this reason, the laminated panel around the window requires a sufficient reinforcing member, resulting in an increase in price and an increase in weight. Moreover, since the laminated panel between the windows is small, the price tends to increase as a result.

An object of the present invention is to provide a structural structure of a railway vehicle that is inexpensive to manufacture, lightweight, and has high rigidity. One of them is to inexpensively construct the eaves part of the connecting portion between the roof structure and the side structure. The second is to make the window portion of the side structure inexpensive.

A third object of the present invention is to provide a railcar body structure which can be manufactured easily and accurately in a structure having a camber.

A fourth object is that, when it is necessary to install an external fitting such as a current collector or an insulator for extra-high cable on the roof, the external fitting is easily installed and has a predetermined strength. It is to provide a structure that can secure the

A fifth object of the present invention is to provide a structure of a railway vehicle in which interior fittings can be easily installed.

[0012]

The first object comprises an underframe, a side structure, a roof structure and a gable structure, and the side structure and the roof structure have a core and a connecting member between a pair of face plates. In a structure of a railway vehicle configured with laminated panels provided with, a light alloy extruded mold member having a closed cross section is arranged in the eaves portion between the side structure and the roof structure along the longitudinal direction of the vehicle. The extrusion direction of the extrusion mold member is the longitudinal direction of the vehicle, and the extrusion mold member is joined to the side structure and the roof structure.

The second object is an underframe, a side structure, a roof structure and a gable structure, and the side structure is composed of a laminated panel having a core and a connecting member between a pair of face plates. In the structure of the vehicle, the blow-off part between the windows of the side structure is made of a light alloy extruded mold member having a closed cross section.

A third object of the present invention is to provide a side structure and a roof structure by means of an extruded mold member that is drawn through in the longitudinal direction of the vehicle body and a plurality of laminated panels that are arranged adjacent to the extruded mold member in the longitudinal direction of the vehicle body. At least one of the plurality of laminated panels is formed by shortening the dimension of the upper position and the lower position in the vehicle body longitudinal direction in the structure configuration state by reducing the dimension of the lower position by a length corresponding to the camber. It

A fourth object is to arrange an extruded mold member having a length dimension and a width dimension corresponding to a vehicle exterior fitting installation range at a vehicle end side position of a roof structure, and connecting to the extruded mold member. This is achieved by joining a plurality of laminated panels in the longitudinal direction of the vehicle body to form a roof structure.

The fifth object is to install an extruded mold member extending between the underframe and the side structure and between the side structure and the roof structure in the longitudinal direction of the vehicle body. This is achieved by integrally forming the outfitting support portion and arranging a plurality of laminated panels adjacent to each other in the vehicle body longitudinal direction between the respective extrusion mold members.

[0017]

In the structure for the first purpose, the laminated panel is integrally formed as an extruded die member, which is complicated to manufacture with a small curvature, so that the material cost can be reduced and the small curvature can be out-of-plane. The bending rigidity can be increased, and the structure can be made lightweight and inexpensive.

In the structure for the second purpose, the blow-off portion is made of the extruded mold material, so that the cost can be reduced.

The structure for the third object has a structure in which the laminated panels are arranged side by side in the longitudinal direction of the vehicle body and are joined together. Therefore, the laminated panels are formed in a shape considering the camber. If these are joined together by welding, the part composed of the laminated panel will have a shape with a camber itself, so compared with the case of constructing a structure by combining only extruded mold members, a structure with a camber can be used. It can be manufactured accurately and easily.

In the structure corresponding to the fourth object, since the structure structure of the portion where the external outfitting is installed is formed by the extruded mold material, the outfitting supporting part is integrally formed or the plate thickness of the supporting part is reduced. The material can be made thicker, the external fittings can be easily installed, and sufficient strength can be secured.

In the structure corresponding to the fifth object, the equipment support parts are installed at almost four corners on the indoor side of the structure,
By installing the unitized fittings between each fitting support, the fittings are configured in units corresponding to each surface in the room, that is, both sides and the ceiling surface, and the fittings are installed in a narrow space inside the structure. The work can be reduced and the installation of outfitting can be facilitated.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, a structure 1 is composed of a side structure 2 having a window, an underframe 3, a roof structure 4 and a gable structure 5. The side structure 2 and the roof structure 4 are configured by welding a plurality of laminated panels 10 described later by welding. The side structure 2 is between the laminated panel 10 arranged below the window W (referred to as a waist portion), the laminated panel 10 arranged above the window W (referred to as a curtain portion), and between the windows W and W. The laminated panel 10 (referred to as a blow-up portion).

The underframe 3 is installed at both ends in the width direction of the vehicle body so as to extend in the longitudinal direction of the vehicle body, and side beams 6 and a plurality of lateral beams installed between the pair of side beams 6 in the width direction of the vehicle body. 7 and a floor plate 8 installed on each cross beam 7. A pillow beam is provided on a support portion of the underframe 3 supported by a truck, and a center beam extending from the vehicle end in the vehicle body longitudinal direction is connected to the pillow beam. A connector is installed on the center beam, and the vehicle end compression load transmitted from the connector is transmitted to the pillow beam, and the vehicle end compression load is dispersed and transmitted to the entire underframe by the pillow beam. It is composed. The side beam 6 is installed at a position where the side structure 2 is joined to the underframe 3, and the cross-sectional shape of the side beam 6 is formed by an extrusion mold member having a closed cross section (hollow material). The lateral beam 7 is joined to the side surface of the side beam 6 by welding. The lateral beams 7 are arranged in parallel in the longitudinal direction of the vehicle body at a predetermined pitch. Also, the floor plate 8
Is composed of a laminated panel which will be described later, and the two are joined so that the upper surface of the floorboard 8 and the upper surface of the bolster are flush with each other. The floorboard 8 directly joined to the bolster is connected in the longitudinal direction of the vehicle body. The thickness of the face plate or the core is thicker than that of the other floor plates to improve the buckling strength against the load in the direction parallel to the plane portion of the floor plate.

The laminated panel 10 including the side structure 2, the roof structure 4, and the floor plate 8 has face plates 11 and 12, as shown in FIG.
Honeycomb-shaped core 13 arranged between the face plates 11 and 12
And a strength member 14 disposed at a predetermined interval between the core 13 and the core 13, and a coupling member 15 disposed along the outer peripheries of the face plates 11 and 12. Such parts are made of light alloys (eg aluminum alloys) and are joined by brazing,
It is one. The joining member 15 is welded to the joining member 15 of the adjacent laminated panel, the side beam 6, and a strength member such as an extrusion mold member 20 described later to form a structure.

Reference numeral 20 is a closed cross-section extruded die member (hollow member) which is provided for joining the side structure 2 and the roof structure 4 and has a closed cross section. The closed cross-section extrusion mold member 20 is arranged so as to be pulled through in the vehicle body longitudinal direction,
The cross-sectional shape in the width direction is arcuate. The outer surface 20a of the closed cross-section extruded die member 20 on the side structure 2 side is formed so as to form a continuous surface with the side structure 2. For example, the outer surface of the laminated panel 10 of the curtain part forming the side structure is formed in an arc shape. In such a case, it is formed to have a curvature for forming a continuously formed smooth curve. On the other hand, the outer surface 20b on the roof structure 4 side is also formed to have an arc-shaped cross section in the width direction. The middle portion of the outer surface is formed in a smooth arc shape, and the outer surface as a whole is the outer surface 20a, 20b.
It is formed in an arc shape that connects the two.

The interior surface 20d of the extrusion mold member 20 is
It is formed in an arc shape like the outer surface. further,
The extruded mold member 20 has a joint portion 20e formed at the joint end with the side structure 2 and a joint portion 20f formed at the joint end with the roof structure 4. A plurality of hollow portions 20h partitioned by a plurality of partition walls 20g are formed inside the coupling portions 20e-20f.

According to this structure, the side beam 6 and the extruded die member 20 arranged on the eaves portion are formed to have a closed cross section, and the torsional rigidity and bending rigidity themselves are extremely high. Since the side structure 2 and the underframe 3 are joined via the side beam 6 and the side structure 2 and the roof structure 4 are joined via the extrusion mold member 20, the structure 1 is configured, so that the rigidity of the structure 1 can be improved.

Since the laminated panel 10 having a high out-of-plane bending rigidity is arranged between the side beams 6 and the extruded die member 20 and the two are bonded with the space therebetween maintained, the laminated panel 10 is provided.
Of the side structure 2 or the whole structure can be improved in equivalent bending rigidity (EI). That is, in the conventional structure in which the outer plate member and the bone member are joined together, deformation occurs under the load condition, so that the extruded die member temporarily installed on the side beam and the eaves of the structure is formed by the outer plate and the bone member. Even if they are joined together, the distance between the two is reduced, which results in a reduction in the corresponding bending rigidity. However, in the above-described embodiment, the reduction in rigidity can be prevented as described above. Further, since the floor plate 8 is joined to the side surface on the indoor side of the side beam 6 in addition to the lateral beam 7, the vertical bending rigidity of the floor plate 8 contributes to the improvement of the bending rigidity of the side beam 6, The stress acting on the side beam 6 can be reduced. Therefore, the height dimension and the width dimension of the side beam 6 in the vertical cross section can be shortened as compared with the conventional one, and the weight of the outer beam 6 can be reduced.

Further, the thickness of the extruded mold member 20 is the same as that of the side structure 2 and the roof structure 4 which are joined to the extruded mold member 20, or the side structure 2 is increased by increasing the thickness of the connecting portion 20e or 20f. Further, the flatness of the structure 1 can be increased by forming a surface continuous with the roof structure 4.

Therefore, the side structure 2, the underframe 3, the roof structure 4, the side beams 6, and the extrusion mold member 20 themselves can be made lighter in weight, so that the weight of the whole structure can be significantly reduced. Further, since the extrusion mold member 20 is integrally formed by the extrusion mold member, the number of parts can be significantly reduced even if the side structure 2 and the roof structure 4 are included. Further, even if the extruded die member has a small curvature, it can be easily made to have a required curvature. In the case of a brazed honeycomb panel, if the curvature is small, it cannot be manufactured or is expensive, but this is not the case.

Further, the outer surface 20a of the closed cross-section extruded die member 20 on the side structure 2 side and the outer surface 2 of the roof structure 4 side.
0b is configured to form a continuous surface between the side structure 2 and the roof structure 4, and the outer surface 20c and the inner surface 20
Since both d are arcuate surfaces and local stress concentration is unlikely to occur, the strength can be improved also from this point.

Further, since the inner surface 20d of the extruded die member 20 is an arcuate surface, it is advantageous in terms of a so-called pressure resistant structure that can withstand pressure fluctuations inside and outside the vehicle that occur when the vehicle is traveling at high speed. .

Further, since the extruded mold member 20 has the connecting portions 20e and 20f formed at the end portions thereof, the positioning is completed only by mounting the side structure 2 and the roof structure 4 on the connecting portions 20e and 20f. Therefore, workability during production can be improved.

Extruded mold material 2 with closed cross section in the above embodiment
Reference numeral 0 denotes a light alloy extruded mold material, which may be integrally molded as a whole, or may be a partially structured material that is combined and integrally molded before being bonded to the various blocks.

Next, another embodiment according to the present invention will be described.
This will be described with reference to FIGS. The side structure 2 has the eaves part connected to the roof structure 4 in addition to the above-described embodiment.
It consists of zero. The blowing portion 30 between the windows W of the side structure 2 is formed of an extruded mold material instead of a laminated panel. The blow-up part 30 welds the waist part and the curtain part. The blowing unit 30 includes two extruded mold members 31.
It consists of a and 31b, and both are joined by welding. The extruded mold members 31a and 31b have a closed cross-sectional shape, and a plurality of hollow portions separated by a plurality of partition walls are formed inside. The outer surface 30a of the blow-off part 30 is formed so as to form a continuous surface with the curtain and the waist of the side structure 2, and for example, has the same curvature even when the surface of the side structure is formed in an arc shape. Has been formed. Since the extrusion direction of the extrusion mold member is the longitudinal direction of the vehicle, the arc can be easily formed.

In FIG. 7, the range of L is the length of the extruded die members 31a and 31b before cutting. The corners 31c and 31d connected to the curtain and the waist are formed in an arc shape to prevent stress concentration.

A recess 3 for attaching a window by cutting the partition wall between the inner surface and the outer surface of the extruded mold members 31a and 31b.
1e is formed. The reinforcing plate 3 is provided in the recess 31e.
Welding two. In addition, the extrusion mold members 31a and 31b
The end portion 31f on the outer surface side of the window W on the side of the window protrudes toward the window side more than the end portion 31g on the inner surface side of the window W side, so that the window can be easily attached.

According to this structure, the laminated panel is smaller in size than the other parts, and the blow-out part 30 having a large stress is used as an extruded mold member, so that it is lightweight and inexpensive.

In the above embodiment, the blow-off portion 30 is formed by welding the two extruded mold members 31a and 31b to each other, but the extruded mold member may be integrally formed depending on the size of the window.

The embodiment shown in FIGS. 9 to 11 will be described. In the figure, the same reference numerals as those used in the above-mentioned embodiment denote the same members. This embodiment is an embodiment in which the blow-off portion 30 has a flat surface, and uses a closed cross-section extruded die material. The extrusion mold member 35 has its extrusion direction oriented in the vertical direction of the vehicle. A corner portion 35c connected to the curtain and the waist,
35d is formed in an arc shape to prevent concentration of stress.
The sizes of the end portions 35f and 35g are the same as the end portions 31f and 31g.
Is the same as. The partition wall 35k on the window W side is installed so that a recess for mounting the window can be formed.

Next, referring to FIGS. 12 and 13, the relationship between the speed, rigidity and pressure resistance of the railway vehicle will be described. 12
The horizontal axis represents the maximum operating speed of high-speed vehicles, and the vertical axis represents the specific rigidity obtained by dividing the rigidity value of the structure by the mass of the structure. In FIG.
The ● mark indicates the value of the specific rigidity of the vehicle currently in operation,
The mark Δ indicates the specific rigidity value of the vehicle having the structure structure shown in the above-mentioned embodiment. In Japan, it is necessary to reduce the weight of the vehicle in order to improve the speed of the vehicle due to constraints such as track structure and environmental problems such as noise and vibration. In order to reduce the weight of the vehicle, it is necessary to reduce the weight of the structure and equipment. On the other hand, in order to improve passenger comfort, it is necessary to keep the rigidity value of the structure constant. Then, when the value of the actual vehicle of the specific rigidity value (structure rigidity value / structure mass) is plotted, a linear function as shown in FIG. 12 is obtained. Looking at this trend, vehicles with a speed of 300km / h or more and 350km / h or less are 0.3 (G
It is necessary to design Nm ² / ton) to 0.4 (GNm ² / ton) or less.

Next, the horizontal axis of FIG. 13 shows the maximum operating speed of high-speed vehicles, and the vertical axis shows the specific withstand pressure obtained by dividing the pressure load acting on the structure when the vehicles pass each other or when entering the tunnel by the mass of the structure. . In FIG. 13, the ● mark indicates the value of the specific pressure resistance of the vehicle currently in operation, and the Δ mark indicates the specific pressure resistance of the vehicle having the structure shown in the above-described embodiment. As explained earlier, due to the speeding up of vehicles, the passing pressure between vehicles and the fluctuating pressure load due to tunnel entry increase,
The speed dependence of that value is the square law of speed. Therefore, in order to keep the strength of the structure safely, it is necessary to increase the withstand pressure load acting on the structure. Then, when the value of the actual vehicle of the specific pressure resistance (pressure load / structure mass) is plotted, it becomes as shown in FIG. 13, and the correlation can be expressed by the function of the square law. As a result, the vehicle of 300 km / h or more and 350 km / h or less needs to be designed to be 1.5 (kPa / ton) or more and 3.0 (kPa / ton) or less.

Next, still another embodiment of the structure of the railway vehicle according to the present invention will be described with reference to FIGS. In the figure, the same reference numerals as those used in the above embodiment denote the same members.

The side structure 52 is the laminated panel 10 forming the waist.
Further, the laminated panel 10 forming the curtain portion, the blower 64 arranged between the windows W so as to connect them, and further installed above the laminated panel 10 of the curtain portion. The extrusion mold member 60 has a closed cross section. The laminated panel 10 forming the waist and the curtain forms a camber of the side structure 52, and thus is formed in a substantially trapezoidal shape having an upper side longer than a lower side. A plurality of the laminated panels 60 are arranged side by side in the vehicle body longitudinal direction and joined. Thus, the side structure 52 can be configured to have a curved shape that is convex upward, that is, a camber. The periphery of the side entrance / exit is configured as an entrance / exit panel 52a formed by combining extrusion mold members to form a gate shape, and is joined to each of the laminated panels 10.

Since the entrance / exit panel 52a is joined to each laminated panel 10 and the extruded mold member 60, the entrance / exit panel 52a is formed in a rectangular shape as a whole. Further, the side wall 52b, which is provided adjacent to the entrance / exit panel 52a and forms the utility chamber, may be formed by using an extruded mold member since various interior parts in the utility chamber are installed.

FIG. 16 shows the detailed structure of the extrusion mold member 60.
Explained by. When the extruded mold member 60 constitutes the small curvature portion of the upper side structure, the width dimension is 800 mm to 10 mm.
The size is relatively wide, about 00 mm, and it is unavoidable that the extrusion molding technique is used to form the divided parts. Therefore,
The extrusion mold material 60h is formed by welding the extrusion mold materials 60h and 60l. Further, the curvature of the extruded mold member 60 is formed such that the radius of curvature R2 at both ends in the width direction is larger than the radius of curvature R1 at the central portion, and it is considered to secure an indoor space. The extrusion mold material 60
In the case of h and 60 l, high quality and high precision welding can be performed before joining with another laminated panel 10, which is advantageous as a high stress bearing portion.

Support rails 60 for supporting interior parts are provided at the widthwise ends of the interior surface of the extrusion mold members 60h and 60l.
r are integrally formed. The support rails 60r and 60r are used to support a luggage rack, a side interior panel, an air conditioning duct, and a ceiling panel, which will be described later.

The extruded mold members 60h and 60l have a closed cross section, that is, a cross sectional shape having a hollow portion inside, to ensure rigidity and reduce weight. The partition wall forming the hollow portion has a shorter installation interval as the radius of curvature becomes smaller, and has sufficient strength against out-of-plane bending deformation when positive and negative pressure loads are applied to the laminated panel 10. It has a built-in structure.

The blower 64 shown in FIG. 14 is also made of an extruded die member having a closed cross section, like the extruded die member 60, and the interior side surface thereof is provided with a support rail 6 for supporting interior parts.
0r is integrally molded.

The underframe 53 has a structure in which a horizontal beam 7 is provided between a pair of side beams 62 and a floor plate 8 is provided, in substantially the same manner as in the above embodiment. However, the pair of side beams 62 are provided with support rails 6 for supporting an interior product at a side surface of a center portion in the vehicle width direction and above a joining position of the lateral beams 7.
2r is integrally molded. The support rails 62r of the side beams 62 support the lower end portion of the side interior panel, which covers the curtain portion, the window periphery, and the waist portion by integral molding, for example, with dedicated fixing bolts. In this case, the side interior panel has its upper end hooked on the support rail 60r of the extruded mold member 60l, and its lower end pressed against the support rail 64 of the blower 64, while the lower end thereof is supported by the support rail 62r. It has a structure to be fixed to. That is, the side interior panel has a radius of curvature smaller than the curvature of the indoor side surface of the side structure 52, and by fixing the upper end and the lower end, the middle part is pressed against the blower 64 and the like. It is fixed and fixed. Further, by interposing a heat insulating material having a restoring property between the side interior panel and the side structure 52, it is possible to ensure heat insulation and prevent vibration of the side interior panel. In addition, as the heat insulating material, a foamed urethane or the like is used.

The roof structure 54 is basically a laminated panel 70.
Are arranged in the longitudinal direction of the vehicle body and joined together. Since the vehicle body longitudinal direction end portion of each laminated panel 70 constitutes a camber of the entire structure, each edge portion is processed so that the width dimension in the vehicle body longitudinal direction is shorter at the lower side than at the upper side of the panel. Therefore, the laminated panel 70
By welding and joining, the camber is constructed as a whole in the longitudinal direction of the vehicle body.

Further, among various structures, there is one in which a current collector or a support insulator for extra-high cable is installed on the roof. When installing a heavy object on the roof like this,
An extrusion mold member 60S having a closed cross-sectional shape is used for this portion as shown in FIG. The extrusion mold material 60S is
It is configured by arranging and joining a plurality of mold members in the vehicle width direction, and a support tool for supporting the current collector and the like, for example, a support rail is configured by integral molding. Note that FIG. 15 shows a state in which the roof structure 54 and the extrusion mold member 60 of the side structure 52 are joined, and the lower part of the side structure 52 is omitted. By the way, in the side structure 52, since the laminated panel 10 which is a basic constituent member has a configuration in which the camber is taken into consideration as described above, the extrusion mold member 60 is also joined to the laminated panel 60 with the camber. . Further, the roof structure 54 also has a structure provided with a camber as described above, and the joining of the two is highly accurate, relatively easy, and has good workability. In addition, the side structure 52 and the roof structure 54
Since at least one of them is an extruded mold member at the joint with the base member, the base member is arranged continuously in the longitudinal direction of the vehicle body, which is advantageous for the vertical bending load of the structure.
That is, in the roof structure 54, the laminated panel 70 is joined by a welding line extending in the vehicle width direction, and the presence of a base material orthogonal to the welding line is advantageous from the viewpoint of ensuring strength reliability.

On the other hand, the camber formed on the roof structure 54 and the side structure 52 is compared with a case where a plurality of extruded die members are forcibly bent and joined by processing each laminated panel 10 or laminated panel 70 in advance. It can be easily formed. Further, from the viewpoint of the strength reliability of the welded portion, it is advantageous to dispose the extruded mold member 60 that is arranged so as to be pulled through in the longitudinal direction of the vehicle body, and the combination of the side structure 52 and the roof structure 54 makes both advantages rational. It has a structure that has been used for various purposes.

The extruded mold member 60 may be constructed as a roof structure. In this case, the extruded mold material 60 and the extruded mold material 60S are first assembled and then joined, and the plurality of joined laminated panels 70 are joined together.

The state of installation of the interior fittings in the above structure will be described with reference to FIG. The side interior panel 81 has a structure that covers from the curtain of the side structure 52 to the upper portion of the side beam 62. The side interior panel 81 has a structure that integrally covers the curtain part on the indoor side, the periphery of the window W, and the waist part. For example, the side interior panel 81 has a structure in which a resin sheet is attached to an aluminum alloy plate material and integrally press-molded. ing. Also, the side interior panel 81
Is formed on a curved surface having a smaller curvature than the arcuate curved surface of the side structure 52, and the upper end of the supporting rail 60r of the extrusion member 60 is extruded with the heat insulating material interposed between the side structure 52 and the side structure 52.
And the lower end is fixed to the support rail 62r of the side beam 62. The middle portion of the side interior panel 82 is pressed by the difference in curvature from the side structure 52, and the support rail 6 of the blower 64 is pressed.
It will be fixed at 4r. Further, the side interior panel 81 is fixed to the support rail 64r of the blower 64 by providing a screw or the like with an opening from the inside of the room, or a fixture is installed in advance and hooked on the support rail 64r. To fix by. If necessary, a reinforcing material is attached to the back surface of the side interior panel 81 along the vehicle body vertical direction by adhesion.

The luggage rack 82 is attached by fixing its lower end and upper end to the support rails 60r of the extrusion mold member 60 with fixing bolts. The lower end of the luggage rack 82 is fixed to the support rail 60r and covers the upper end of the side interior panel 81. Luggage rack 82
Since the front lid 82a is openable and the fixing bolts are arranged inside, the fixing bolts are not exposed to the indoor side in a normal use state.

The ceiling panel 83 is mounted over the support rails 60r of the extrusion mold member 60 provided on both sides in the vehicle width direction. An air conditioning duct 84 is installed between the ceiling panel 83 and the roof structure. The air conditioning duct 84
Has one end in the width direction fixed to the support rail 60r and the other fixed to the support rail 70r attached to the internal reinforcing member of the laminated panel 70. The support rail 70r is attached to the internal reinforcing material made of a mold material provided inside the laminated panel 70 with a prepared hole and a fixing core metal. The air conditioning duct 84
The conditioned air is supplied from the wife side of the structure, and the conditioned air is blown out through the air outlet 84a provided in the ceiling panel 84.

In such an inner rigging structure, as a working procedure, the ceiling portion and the side wall portion are preceded and the luggage rack 82 is attached thereafter. That is,
After installing the air conditioning duct 84, the ceiling panel 83 is attached.

On the other hand, the side interior panel 81 is attached to the inner surface of the side structure 52 with the heat insulating material 85 installed. In this state, the luggage rack 82 is fixed to the extrusion mold member 60. In this way
The luggage rack 82 covers the ends of the ceiling panel 83 and the side interior panel 81 to improve the appearance. The attachment of the luggage rack 82 to the support rail 60r can be improved in workability by using one as a hook type and the other by a fixing bolt.

According to this structure, the extruded mold members 60 are provided at the four corners of the structure, that is, at the upper and lower sides in the vertical cross section of the structure.
Since a mold material having a closed cross-section structure composed of and side beams 62 is arranged so as to be drawn through in the longitudinal direction of the vehicle body, and these are joined by the laminated panels 10 and 70, the equivalent bending rigidity (EI) of the entire structure is improved. Can be improved.

Further, the laminated panels 10 and 70 are processed at the outer peripheral portion in consideration of the camber of the entire structure, so that the camber can be easily constructed only by welding and the laminated panels 10 and 70. The strength reliability of the welded portion can be improved by the combination of and the extrusion mold material 60.

The joints between the laminated panels 10 and 70 and the extruded mold member 60 have their outer surfaces flush with each other,
The surface of the vehicle body can be easily smoothed, and when positive and negative pressure fluctuations act on the structure, the force is smoothly transmitted, and problems such as stress concentration can be prevented. Further, since the roof structure 54 forms the end of the extruded mold member 60 so that the width direction end of the roof structure 54 can be placed on each side structure 52, the joining work of the both can be performed more easily than the butt method. I can do it.

The extruded mold member 60 has a structure in which the interval between the partition walls forming the hollow cross section is narrowed in the portion having a small radius of curvature to improve the rigidity. Therefore,
The strength can be secured while securing the indoor space.

Regarding the shape of the extruded die member 60, it may be possible to improve the rigidity by increasing the thickness dimension from the interior surface to the exterior surface of the vehicle in the center portion in the width direction where stress concentration is likely to occur.

By the way, in the blower 64, the extruded material having a closed cross section is installed according to the width dimension of the window, but the window opening is machined to the hollow extruded material continuously formed in the longitudinal direction of the vehicle body. You may comprise. That is, not only the blow-off portion but also the window outer frame may be formed of an integral extruded material. The laminated panel is joined to such an extruded material to form a side structure. According to such a configuration, the periphery of the window can be a complete base material, and the strength can be improved or the weight can be reduced.

[0066]

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

Further, according to the present invention, by constructing the eaves portion of the connecting portion between the roof structure and the side structure at a low cost, the structure of the railway vehicle having a low manufacturing cost, a light weight and a high rigidity is provided. be able to.

Further, according to the present invention, the window portion of the side structure can be formed at a low cost by forming the blow-by by the extruded mold member having the closed cross-section structure.

Further, according to the present invention, by combining the laminated panel and the extruded mold member drawn in the longitudinal direction of the vehicle body, the structure having the camber can be manufactured easily and accurately.

Further, according to the present invention, when it is necessary to install an external fitting such as a current collector or an insulator for extra-high cable on the roof, the external fitting can be easily installed and can be installed in a predetermined manner. It is possible to provide a structure capable of ensuring the strength of

Further, according to the present invention, the interior fittings can be easily installed by installing the supporting means such as the support rail by integrally molding the extrusion mold material.

[Brief description of drawings]

FIG. 1 is a cross-sectional perspective view of a structure of a railway vehicle according to an embodiment of the present invention.

FIG. 2 is an external perspective view of the structure of the railway vehicle shown in FIG.

3 is a cross-sectional view of the laminated panel of FIG.

FIG. 4 is a vertical sectional view of an eaves portion of the structure shown in FIG.

FIG. 5 is a cross-sectional perspective view of the structure of a railway vehicle according to another embodiment of the present invention.

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

FIG. 7 is a left side view of FIG.

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

FIG. 9 is a cross-sectional perspective view of the structure of a railway vehicle according to another embodiment of the present invention.

10 is a sectional view taken along the line 10-10 of FIG.

11 is a view taken along line 11-11 of FIG.

FIG. 12 is a diagram showing a relationship between speed and specific rigidity of a railway vehicle according to the present invention.

FIG. 13 is a diagram showing the relationship between the speed of a railway vehicle and the specific pressure resistance according to the present invention.

FIG. 14 is a sectional perspective view showing still another embodiment of the structure of the railway vehicle according to the present invention.

15 is a perspective view showing a roof portion of the structure shown in FIG.

16 is a cross-sectional view showing a detailed structure of an extrusion die member of the structure shown in FIG.

17 is a cross-sectional view showing a state in which internal fittings are installed in the structure shown in FIG.

[Explanation of symbols]

1 ... Body structure, 2 ... Side structure, 3 ... Underframe, 4 ... Roof structure, 5 ...
Gable structure, 6 ... Side beam, 7 ... Horizontal beam, 8 ... Floor plate, 10 ... Laminated panel, 11, 12 ... Face plate, 13 ... Core, 14 ... Strength member, 15 ... Coupling member, 20 ... Eaves extruded member, 30
... Blow-up part, 31a, 31b, 35 ... Extruded mold material.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mamoru Ohara, 794, Higashitoyo, Higamatsu, Shimomatsu, Yamaguchi Prefecture, Hitachi Kasado Engineering Co., Ltd. (72) Kenji Kimura, 794, Higashitoyo, Higamatsu, Yamaguchi, Hitachi Inside Kasado Plant (72) Inventor Tomonori Takeshi, 502 Kintatecho, Tsuchiura City, Ibaraki Prefecture

Claims (12)

[Claims] 1. A railway vehicle comprising an underframe, a side structure, a roof structure and a gable structure, wherein the side structure and the roof structure are composed of laminated panels having a core and a connecting member between a pair of face plates. In the structure of, the extruded mold member having a closed cross section made of light alloy is arranged along the longitudinal direction of the vehicle in the eaves portion between the side structure and the roof structure, and the extruded mold member is extruded in the longitudinal direction of the vehicle. The structure of a railway vehicle is characterized in that it is the direction, and the extruded mold member is joined to the side structure and the roof structure. 2. The structure of the railway vehicle according to claim 1,
A structure of a railway vehicle, wherein the side structure comprises upper and lower portions of a window made of the laminated panel. 3. The structure of the railway vehicle according to claim 1,
A railcar, wherein the extruded die member has an outer surface that is a surface formed continuously with a side structure and a roof structure that form a vehicle body, and an inner surface thereof has an arcuate curved surface that is continuously formed. Structure of. 4. A railway vehicle body structure comprising an underframe, a side structure, a roof structure and a gable structure, wherein the side structure comprises a laminated panel having a core and a connecting member between a pair of face plates. A structure of a railway vehicle, characterized in that the blow-up part between the upper part and the lower part of the window of the side structure is constituted by an extruded mold material having a closed cross section made of light alloy that connects the both parts. 5. The structure of the railway vehicle according to claim 4,
The structure of a railway vehicle, wherein the extruded die member is installed with its extruding direction oriented in the longitudinal direction of the vehicle. 6. The structure of the railway vehicle according to claim 4,
The structure of a railway vehicle, wherein the extruded die member is installed with its extruding direction oriented in the vertical direction of the vehicle. 7. The structure of the railway vehicle according to claim 5,
The extruded mold member has a surface whose outer surface is formed continuously with a side structure and a roof structure forming a vehicle body, and the indoor surface has an arcuate curved surface continuously formed,
The structure of a railway vehicle characterized by. 8. In a high-speed vehicle traveling at a speed of 300 km / h, the specific rigidity obtained by dividing the vehicle structural rigidity value by the structural mass is 0.
A vehicle body of a railway vehicle characterized by being 3 (GN · m ² / ton) or more. 9. In a high-speed vehicle traveling at a speed of 300 km / h or more and 350 km / h or less, the specific rigidity obtained by dividing the structure rigidity value by the structure mass is 0.3 (GN · m ² / ton) or more and 0.4 (GN・ M ² / ton) or less, and the specific withstand pressure obtained by dividing the pressure load acting on the vehicle by the structure mass is 1.5 (kPa / ton) or more and 3.0 (kPa / ton) or less The body of a railway vehicle characterized by. 10. At least one of a side structure and a roof structure is constituted by an extruded mold member that is arranged so as to be pulled through in the longitudinal direction of the vehicle body, and a plurality of laminated panels that are arranged adjacent to the extruded mold member in the longitudinal direction of the vehicle body. In the structure of the plurality of laminated panels, the dimensions of the upper position and the lower position in the longitudinal direction of the vehicle body are shortened by the length corresponding to the camber. 11. An extrusion mold member having a length dimension and a width dimension corresponding to a vehicle exterior fitting installation range is arranged at a vehicle end side position of a roof structure, and a plurality of extrusion mold members are connected to the extrusion mold member in a longitudinal direction of a vehicle body. A structure of a railway vehicle characterized in that a roof structure is formed by joining the laminated panels of. 12. Extruded mold members are installed between the underframe and the side structure and between the side structure and the roof structure so as to extend in the longitudinal direction of the vehicle body, and the fitting support parts are provided on the inner surface of each of the extruded mold members. And a plurality of laminated panels are arranged adjacent to each other in the longitudinal direction of the vehicle body between the respective extruded mold members, and the laminated panels are joined to each other and each laminated panel and the extruded mold member are joined together. The structure of the vehicle.