JP2005263085A - Railway rolling stock body structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a railway rolling stock body structure easy in manufacture, and capable of reducing manufacturing cost. <P>SOLUTION: An outside plate panel 22 is used for the railway rolling stock body structure 1, and has a face plate 24 and a plurality of sections 24 of a cross-sectional substantially triangular shape having a hollow part 34. This outside plate panel 22 is juxtaposed in a plurality along the face plate 24 in a state of joining a first top part 38 of a section 26 to a plane part 24a of the face plate 24, and is formed by respectively continuously welding a contact part of the face plate 24 and the first top part 38 of the section 26 and a contact part of a second top part 40 and a third top part 42 in the adjacent sections 26, in the longitudinal direction of the sections 26 in a state of joining the second top part 40 and the third top part 42 mutually opposed in the adjacent sections 26 by butting. In this invention, a rectangular outside plate panel having various sizes can be easily manufactured, and the manufacturing cost can also be reduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a railway vehicle structure.

2. Description of the Related Art Conventionally, as a structure used for a railway vehicle, an outer panel formed by combining long mold materials is used. For example, Patent Document 1 discloses an outer plate panel in which corrugated ribs are sandwiched between a pair of face plates. This panel is assembled into an integrated truss structure by laser welding the engaging part in a state where the convex part provided on the inner surface of the face plate and the concave part provided on the peak part of the rib are engaged. As a result, strength is secured.
JP-A-10-230845

  By the way, a general railway vehicle structure is composed of a side structure, a roof structure, a wife structure, a frame, and the like. However, for example, in the side structure, it is necessary to prepare an outer panel having a plurality of dimensions in consideration of the shapes of windows and doors provided in the vehicle. Is required. Furthermore, since it is necessary to design an engaging portion for connecting the face plate and the rib, there is a problem that the manufacture of the vehicle structure becomes complicated. Further, the processing of the engaging portion is complicated, and there is a problem that the manufacturing cost is increased.

  Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a railway vehicle structure that can be easily manufactured and can reduce manufacturing costs.

  In order to solve the above problems, a railway vehicle structure according to the present invention is a railway vehicle structure having an outer panel, wherein the outer panel includes a face plate and a plurality of elongated mold members having a first hollow portion. A plurality of mold materials are juxtaposed along the face plate so that a part of the surface of the mold material is joined to the flat portion of the face plate, and adjacent mold materials are adjacent to each other by abutting the surface portions facing each other. Joined so as to form a second hollow portion between the two mold members and the face plate, and continuously welds the contact portion between the face plate and the die member and the contact portion between the adjacent die members along the longitudinal direction of the die member. It is characterized by.

  In this railway vehicle structure, the mold material having the first hollow portion is provided side by side along the face plate, and the face plate, the mold material, and the adjacent mold material are continuously welded to each other so that the second die is also formed between the adjacent mold material and the face plate. The hollow part is formed. And since an outer panel is comprised so that a hollow part may be continued, the intensity | strength improvement of a railway vehicle structure can be aimed at. In addition, it is possible to easily change the length of the outer panel by changing the length of the face plate and increasing / decreasing the number of molds according to the change, so that rectangular outer panels of various sizes can be easily created. The manufacturing cost can be reduced. Further, in this railway vehicle structure, since the outer plate panel is formed by continuously welding the face plate, the mold material, and the adjacent mold materials, the partition between the first hollow portion and the second hollow portion is blocked. Is done. For this reason, the outer panel which can maintain the watertightness and airtightness between adjacent hollow parts and can endure a rapid pressure change and wind and rain when the vehicle enters the tunnel is created. In recent years, a structure made of stainless steel or aluminum may be used in order to reduce the weight of a vehicle. However, as a result of continuously adjoining the hollow portions as described above, sufficient rigidity can be ensured.

  Moreover, it is preferable that the mold material has substantially the same triangular cross section. According to this configuration, sufficient rigidity can be ensured as a result of the hollow portions having substantially the same cross-sectional triangular shape being continuously adjacent to each other.

  Moreover, it is also preferable that the face plate is curved along the arrangement direction of the mold materials. According to this configuration, the railway vehicle structure can be configured by the curved outer panel. For example, a so-called “hem diaphragm” that allows the shape of the lower part of the side structure to curve toward the inside of the vehicle is enabled, thereby making it possible to reduce the vehicle width as much as possible while maintaining the volume in the vehicle interior.

  Moreover, it is preferable that at least one of a vibration-proof material or a sound-proof material is filled in the first or second hollow portion. In this way, vibration and noise propagating into the passenger compartment can be reduced during vehicle operation.

  As described above, according to the present invention, it is possible to easily manufacture a railway vehicle structure and reduce the manufacturing cost.

  Hereinafter, a preferred embodiment of a railway vehicle structure according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a railway vehicle structure 1 constructed in accordance with the present invention. This railcar structure 1 has a floor structure 2 that constitutes a floor, a side structure 4 that constitutes a side, a roof structure 6 that constitutes a roof, and a wife structure 8 that constitutes a front part and a rear part. And each structure 2-8 is mutually joined.

  The side structure 4 includes four door units 10 and five window units 12 and is divided into five blocks 4A to 4E with the door unit 10 as a boundary, and the blocks 4A to 4E and the door unit 10 Are joined alternately. Each of the blocks 4A to 4E includes a waist panel 14 including an outer panel 22 described later, a blowing panel 16, a curtain panel 18, and a window unit 12, and has substantially the same configuration. Further, a door upper panel 20 is provided on the upper portion of the door unit 10.

  The waist panel 14 is a panel located below the lower edge of the window unit 12 and joined to the floor structure 2. The blowing panel 16 is a panel located between the door unit 10 and the window unit 12 and between the wife structure 8 and the window unit 12. The blowing panel 16 may be provided so as to connect between the window unit and the window unit. The curtain panel 18 is a panel that is positioned above the upper edge of the window unit 12 and is joined to the roof structure 6. The door upper panel 20 is a panel that is positioned above the upper edge of the door unit 10 and is joined to the roof structure 6.

  Next, the side structure 4 will be described in more detail. An outer panel 22 is used for each of the panels 14, 16, 18, and 20 constituting the side structure 4. As shown in FIG. 2, the outer panel 22 includes a face plate 24 having a rectangular flat plate portion 24 a, and a long shape material having a regular triangular shape having a first hollow portion 34 (hereinafter referred to as “triangle shape material”). 26), and a second hollow portion 36 having a regular triangular cross section is provided between the face plate 24 and the adjacent triangular shaped members 26, 26.

  The triangular shape member 26 is formed of an iron-based alloy or an aluminum alloy, and includes a first side wall portion 28, a second side wall portion 30, and a lower wall portion 32 that extend in the longitudinal direction. , 30 and 32 form a first hollow portion 34 having a regular triangular cross section. Further, the triangular shaped member 26 is formed on the contact portion between the first top portion 38 located at the contact portion between the first side wall portion 28 and the second side wall portion 30, and the contact portion between the first side wall portion 28 and the lower wall portion 32. It has the 2nd top part 40 located, and the 3rd top part 42 located in the contact part of the 2nd side wall part 30 and the lower wall part 32. As shown in FIG. In the outer panel 22, a plurality of first top portions 38 of the triangular shaped member 26 are juxtaposed along the face plate 24 while being joined to the flat portion 24 a of the face plate 24. Further, in the adjacent triangular molds 26, 26, the contact portion between the face plate 24 and the first top 38 of the triangular mold member 26 with the second top part 40 and the third top part 42 facing each other facing each other. And the contact part of the 2nd top part 40 and the 3rd top part 42 in the adjacent triangular type | mold materials 26 and 26 is continuously welded along the longitudinal direction of the triangular type | mold material 26, respectively. Moreover, between the adjacent 1st hollow part 34 and the 2nd hollow part 36, each side wall part 28 and 30 is a partition, and is in the state interrupted | blocked mutually.

  When manufacturing such an outer panel 22, first, the first top portion 38 of the first triangular mold member 26 </ b> A is placed in contact with the flat plate portion 24 a of the face plate 24. Next, the first top portion 38 of the second triangular mold member 26B and the flat plate portion 24a of the face plate 24 are brought into contact with each other, the second top portion 40 of the first triangular mold member 26A, and the third top of the second triangular mold member 26B. The face plate 24 and each triangular material 26 are arranged so as to contact the top portion 42. Thereafter, the same procedure is repeated, and the triangular shaped member 26 is brought into contact until a predetermined length is reached. Then, each contact part is connected by continuous welding part W1, W2 from the upper direction and the downward direction, and the outer panel 22 is completed. The outer panel 22 formed in this way can secure sufficient rigidity as a result of the first hollow portions 34 and the second hollow portions 36 having an equilateral triangular cross section being alternately and continuously adjacent to each other. become. Moreover, the hollow parts 34 and 36 can be actively used effectively at the time of welding. For example, when a cooling medium such as air or an inert gas is flowed in the hollow portions 34 and 36 during welding or a cooling pipe is disposed in the hollow portions 34 and 36, the welding quality and welding efficiency can be improved.

  As a welding method, it is preferable to use friction stir welding (FSW), laser welding, hybrid laser welding, tandem MIG, brazing or the like. In these welding methods, the amount of heat input to the mold material can be reduced, so that continuous welding with reduced heat distortion is possible.

  Next, the panel configuration of the side structure 4 using the outer panel 22 will be described. As shown in FIG. 3, the waist panel 14 and the curtain panel 18 have the outer panel 22 disposed so that the hollow portions 34 and 36 extend in the lateral direction (horizontal direction), and the door unit 10 in the longitudinal direction of the vehicle. , 10 between. The door upper panel 20 is also provided with the outer panel 22 so that the hollow portions 34 and 36 extend in the lateral direction. Further, the blowing panel 16 is arranged between the waist panel 14 and the curtain panel 18 by arranging the outer panel 22 so that the hollow portions 34 and 36 extend in the vertical direction (vertical direction). As described above, the side structure 4 is configured by combining the outer plate panel 22 in which the hollow portions 34 and 36 extend in the vertical direction and the outer plate panel 22 in which the hollow portions 34 and 36 extend in the horizontal direction. Therefore, sufficient rigidity is ensured.

  As described above, in this railway vehicle structure 1, the triangular shaped member 26 having the first hollow portion 34 is arranged along the flat plate portion 24 a of the face plate 24, and the face plate 24, the triangular shaped member 26, and the adjacent triangular shaped member 26. , 26 are continuously welded to form the outer panel 22. In the outer panel 22, the first and second hollow portions 34, 36 are alternately continued as a result of the formation of the second hollow portions 36 between the adjacent triangular shaped members 26, 26 and the face plate 24. Therefore, the strength of the railway vehicle structure can be increased.

  Further, the outer panel 22 can be easily changed in length by changing the length dimension of the face plate 24 and increasing / decreasing the number of triangular shaped members 26 according to the change in the length dimension. The rectangular outer panel can be easily manufactured, and the manufacturing cost can be reduced. Therefore, the side structure 4 can take various panel configurations.

  For example, as shown in FIG. 4, as another side structure 4 </ b> A, the blowing panel 16 extends from the upper edge portion to the lower edge portion of the side structure body 4, and the waist panel 14 and the curtain are interposed between the blowing panels 16 and 16. You may comprise so that the panel 18 may be located. In this case, the area of the outer panel 22 arranged so that the hollow portions 34 and 36 extend in the vertical direction becomes larger, so that the rigidity in the vertical direction of the railway vehicle assembly 1 can be further improved.

  Further, as shown in FIG. 5, each of the blocks 4 </ b> A to 4 </ b> E may be configured by a single outer panel 22 that cuts out a mounting portion of the window unit 12 as still another side structure 4 </ b> B. In this case, since the number of panels is small, the design can be simplified and the manufacturing cost can be reduced.

  Further, in the outer panel 22, the first hollow portion 34 and the second hollow portion 36 adjacent to each other are blocked by the first side wall portion 28 and the second side wall portion 30 of the triangular mold member 26. For this reason, since the outer panel 22 can maintain water tightness and air tightness between the adjacent first hollow portion 34 and second hollow portion 36, a sudden pressure change when the vehicle enters the tunnel. It is possible to withstand wind and rain.

  Note that the first hollow portion 34 or the second hollow portion 36 of the outer panel 22 can be appropriately filled with at least one of a vibration-proof material or a sound-proof material. As a result, it is possible to reduce vibration and noise that propagates into the passenger compartment during vehicle operation.

  The present invention is not limited to the embodiment described above. For example, as another outer plate panel 44, a face plate 45 that is curved along the arrangement direction of the triangular shaped members 24 may be used as shown in FIG. According to this configuration, for example, a so-called “hem diaphragm” that curves the shape of the lower part of the side structure 4 toward the inside of the vehicle can be realized, thereby reducing the vehicle width as much as possible while maintaining the volume of the vehicle interior. Can do.

  Further, as shown in FIG. 7, a mold material 47 having a hexagonal cross section may be used as another outer panel 46. Further, as shown in FIG. 8, a mold 49 having a circular cross section may be used as another outer panel 48. As other mold materials, flat cross-sectional circles, rectangular cross-sections, and polygonal cross-sections are possible, and the outer panel may be configured by combining mold materials having different cross-sectional shapes.

1 is a perspective view showing an embodiment of a railway vehicle structure according to the present invention. It is a perspective view which shows the example of the outer panel applied to the railway vehicle structure shown in FIG. It is a side view which shows the panel structure of a side structure. It is a side view which shows another embodiment of the panel structure of a side structure. It is a side view which shows another embodiment of the panel structure of a side structure. It is a perspective view which shows another example of the outer panel applied to the railway vehicle structure shown in FIG. It is a side view which shows the example of the outer plate panel comprised using another type | mold material. It is a side view which shows the example of the outer panel comprised using another mold material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Rail vehicle structure, 22, 44, 46, 48 ... Outer panel, 24, 45 ... Face plate, 24a ... Plane part, 26 ... Triangular type | mold material (mold material), 34 ... 1st hollow part, 36 ... 2nd Hollow portion, 38 ... first top portion, 40 ... second top portion, 42 ... third top portion, 47, 49 ... mold material.

Claims (4)

In a railway vehicle structure having an outer panel,
The outer panel has a face plate and a plurality of elongated mold members having a first hollow portion,
A plurality of the mold materials are juxtaposed along the face plate so that a part of the surface of the mold material is joined to the flat portion of the face plate,
The adjacent mold materials are joined so as to abut against the surface portions facing each other and form a second hollow portion between the two adjacent mold materials and the face plate,
A railway vehicle structure, wherein a contact portion between the face plate and the mold material and a contact portion between the adjacent mold materials are continuously welded along a longitudinal direction of the mold material. 2. The railway vehicle structure according to claim 1, wherein the mold members have substantially the same cross-sectional triangular shape. The railway vehicle structure according to claim 1, wherein the face plate is curved along an arrangement direction of the mold members. The railway vehicle structure according to any one of claims 1 to 3, wherein the first or second hollow portion is filled with at least one of a vibration-proof material and a sound-proof material.

Images