JP2007050741A - Railway vehicle structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a railway vehicle structure having a flattened outer plate of a side structure. <P>SOLUTION: In the railway vehicle structure, the side strcture is formed by joining a window block 10 provided with a window opening part 19 and a side entrance block 20 provided with an entrance opening part 29 and is formed by joining a roof vehicle body, an end frame and a base frame in addition to the side structure. In the window block 10, an outer plate 11 joined with skeleton members 12, 15, 16 has an upper outer plate 11a including a freeze board part and a lower outer plate 11B including a wainscot panel part. The upper outer plate 11A and the lower outer plate 11B are vertically arranged and ends abutted on each other are continuously connected by laser welding. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a railway vehicle structure that is assembled by joining a roof structure, a side structure, and the like, and more particularly to a railway vehicle structure that eliminates a step between an upper outer plate and a lower outer plate of a block constituting the side structure.

  High-speed railway vehicles such as Shinkansen vehicles employ aluminum vehicles, and a 20 m extruded mold material corresponding to the entire length of the vehicle body is joined to form a railway vehicle structure. On the other hand, railway cars traveling on conventional lines are often used with unpainted vehicles mainly for labor-saving maintenance, and aluminum structures are inferior in terms of scratches and dirt. Has been. In that case, a vehicle structure having a structure in which parts such as a side structure block are joined and combined instead of the extrusion mold material is adopted as the stainless steel structure.

In recent years, a railway vehicle structure has been developed that is assembled by a structure block in which a core member is welded and integrated with a stainless steel outer plate, and is disclosed in, for example, Japanese Patent Application Laid-Open No. 2002-104180. Here, FIG. 8 is a side view of the railway vehicle structure disclosed in the publication. FIG. 9 is a diagram showing structure blocks constituting the vehicle structure.
The railway vehicle structure is configured such that the roof structure is joined to the upper part of the side structure, and the lower part of the side structure is joined to the underframe. A side structure 100 for one vehicle described in the publication that constitutes such a railway vehicle structure is positioned between two sets of vehicle end window blocks 101, two sets of intermediate window blocks 102, and each of the window blocks 101 and 102. The three side inlet blocks 103 are joined to each other.

  The vehicle end window block 101 disposed in the front and rear of the vehicle body is formed by attaching an outer plate 110 including a curtain plate portion to a framework. The outer plate 110 is divided into an upper outer plate 111 and a lower outer plate 112, and the whole is configured to be larger than the framework. The upper outer plate 111 is formed with a window opening 12c and is attached to the upper portion from the waistband member, and the lower outer plate 112 is attached to the waist plate portion. On the other hand, each intermediate window block 102 is created by attaching an outer plate 120 including a curtain plate portion to a framework, and is divided into an upper outer plate 121 and a lower outer plate 122, and the whole is larger than the framework. It is configured. A window opening 123 is formed in the upper outer plate 121, and is attached to the upper curtain plate portion and the blowing plate portion from the waist band member, and the lower outer plate 112 is attached to the waist plate portion. In the side inlet block 103, an inlet frame plate 130 including a curtain plate portion is constituted by an upper frame member, a lower frame member, and a side frame member, and an inlet opening 131 is formed.

The two sets of the vehicle end window block 101 and the intermediate window block 102 and the three sets of the side entrance blocks 103 are joined by welding. That is, as shown in FIG. 9, the side entrance block 103 is arranged between the vehicle end window block 101 and the intermediate window block 102 arranged at a predetermined interval, and each of them is welded. Each side entrance block 103 is spot welded with the frame plate 31 overlapped on the outer surface of the outer plate 110 of the vehicle end window block 101 and the outer surface of the outer plate 22 of the intermediate window block 102.
Therefore, in the conventional railway vehicle structure having a side structure formed by joining the blocks 101, 102, and 103, since each block is individually formed, the longitudinal dimension is reduced, and the outer plate is easily handled. There are effects such as becoming.
JP 2002-104180 A (page 2-3, FIGS. 1 and 2)

By the way, in such a conventional railway vehicle structure, the upper outer plates 111 and 121 and the lower outer plates 112 and 122 constituting the vehicle end window block 101 and the intermediate window block 102 have a structure in which a step processing called so-called gusset removal is performed. It was. This is because, when joining by MIG welding or the like, distortion of the joint due to excessive heat input occurs, so that the overlapped part is joined by spot welding in order to avoid this. However, as a result, steps are formed on the outer plates 110 and 120 of the vehicle end window block 101 and the intermediate window block 102, and the appearance is deteriorated and the appearance is not good.
In addition, since the welded portions of the upper outer plates 111 and 121 and the lower outer plates 112 and 122 are spot-welded, further watertight treatment using a sealing material is necessary for the joined portions. However, the seal material at the joint portion needs to be replaced due to deterioration over time, or when the compatibility with the detergent used for car washing is poor, the seal is deteriorated, and replacement for that is also necessary. Therefore, in the conventional railcar structure, the maintenance related to the sealing material provided between the upper outer plates 111 and 121 and the lower outer plates 112 and 122 is troublesome.

  Accordingly, an object of the present invention is to provide a railway vehicle structure in which the outer plate of the side structure is flattened in order to solve such a problem.

A railcar structure according to the present invention is a structure in which a side structure includes a window block provided with a window opening and a side entrance block provided with an entrance opening. In addition to the side structure, a roof structure, a wife structure, and a stand. The window block is formed by joining a frame, and the outer plate to which the bone member is joined has an upper outer plate including a curtain plate portion and a lower outer plate including a waist plate portion. End portions where the outer plate and the lower outer plate are arranged vertically and are abutted to each other are continuously connected by laser welding.
In the railway vehicle structure according to the present invention, it is preferable that a joining line obtained by laser welding the upper outer plate and the lower outer plate is at the height of the window opening formed in the window block.
In addition, the railway vehicle structure according to the present invention is preferably a bone member having a hat-shaped cross section, and a brim portion of the bone member is joined to the joint line from the inside of the vehicle body.

Therefore, according to the railway vehicle structure of the present invention, the end plates of the window block constituting the side entrance block are continuously connected by laser welding at the ends where the upper outer plate and the lower outer plate are butted together. Since the outer plate can be made flat and the beads are not conspicuous by laser welding, the outer plate of the side structure can be flattened to improve the appearance. And the watertightness of the said junction part is securable by welding the junction part of an upper outer plate and a lower outer plate continuously by laser welding. This eliminates the need for the sealing material required for spot welding and eliminates the need for maintenance to replace the sealing material.
Further, according to the present invention, since the joining line between the upper outer plate and the lower outer plate is at the height of the window opening formed in the window block, the joining area is reduced by reducing the joining area by welding. The part can be made less noticeable.
Furthermore, the strength of the joint portion can be maintained by overlapping and joining the bone member at the abutting portion between the upper outer plate and the lower outer plate.

  Next, an embodiment of a railway vehicle structure according to the present invention will be described below with reference to the drawings. The railcar structure of the present embodiment is similar to the conventional example described with reference to FIGS. 7 and 8, in which the roof structure is joined to the upper part of the side structure and the frame is joined to the lower part of the side structure. Furthermore, the wife structure is joined before and after. The side structure is formed by joining and integrating the side entrance blocks arranged between the vehicle end and the intermediate window block.

  1 and 2 are perspective views showing a state in which the intermediate window block and the side entrance block constituting such a side structure are separated. In particular, FIG. 1 shows a view from the outside of the vehicle body, and FIG. Shows a view from the inside of the vehicle body. FIG. 3 is a view showing a state in which the side inlet blocks are joined to both ends of the intermediate window block from the vehicle interior side. 1 and 2 show the entire side entrance block 20 and half of the intermediate window block 10 is shown. On the other hand, FIG. 3 shows the entire intermediate window block 10 and shows a half of the side inlet block 20 joined to both sides thereof.

  The intermediate window block 10 is formed by joining a bone member to an outer plate 11 including a curtain plate and a waist plate. For example, as shown in FIG. 4 showing the AA cross section of FIG. 3, the bone member 12 has a hat-shaped bone member 12 or the like joined longitudinally and laterally to the back surface of the outer plate 11. Specifically, two side pillars 12 are formed along two left and right vertical sides of the window opening 19 formed in the outer plate 11, and two side pillars each located at both left and right ends of the outer plate 11. A total of 12 twelve are formed in accordance with the height of the side structure. On the other hand, a curtain band member 13 and a waist band member 14 are formed on the top, bottom, and horizontal sides of the window opening 19. A curtain frame 15 is formed in the vertical direction above and below the window opening 19, and a plurality of reinforcing bones 16 are bonded in the horizontal direction between the vertical bone members 12 and 15. Further, a thick long base member 17 is joined to the lower end portion of the outer plate 11 along the bottom side thereof.

  By the way, the intermediate window block 10 of the present embodiment is configured such that the outer plate 11 includes an upper outer plate 11A including a curtain plate portion and a lower outer plate 11B including a waist plate portion, and particularly the height of the window opening 19. It is divided up and down. Therefore, the upper outer plate 11A and the lower outer plate 11B are both cut off at the lower end side and the upper end side so as to form a half of the window opening 19. Then, the lower end of the upper outer plate 11 </ b> A excluding such a notch and the upper end of the lower outer plate 11 </ b> B are abutted, and a joining line 18 is formed at the height of the window opening 10. Here, FIG. 5 is a cross-sectional view of the upper outer plate 11A and the lower outer plate 11B showing the joint line 18 portion. An outer plate reinforcing bone 16 having a hat-shaped cross section is provided on the vehicle inner side of the intermediate window block 10 so as to overlap the joint line 18, and the brim portion 16 a is overlapped with the joint line 18.

  In this embodiment, the upper outer plate 11 </ b> A and the lower outer plate 11 </ b> B, whose upper and lower ends are butted together, are joined from the outside of the vehicle body by continuous welding using a laser moving along the joining line 18. Accordingly, the laser beams are focused and irradiated toward the ends abutted from the outside of the vehicle body, and the upper outer plate 11A and the lower outer plate 11B are continuously moved along the joining line 18 while being heated and melted. By doing so, a weld line is formed and joined to the abutting portion between the upper outer plate 11A and the lower outer plate 11B.

  Next, the side entrance block 20 is configured with the entrance frame 21 as the main. The entrance frame 21 forms an entrance opening 29, and is composed of left and right vertical frame portions 22, a waist plate portion 23 below the entrance opening 29, and an upper curtain plate portion 24. In particular, the curtain plate portion 24 is formed in a comb-teeth shape, and there are a total of four comb teeth plates 24a extending from the vertical frame portion 22 and two comb tooth plates 24b therebetween. And the outer plate | board 25 is affixed on the surface of the film | membrane board | plate part 24 containing these comb-tooth plates 24a and 24b. A reinforcing bone 26 having a hat-shaped cross section is joined between the comb teeth plates 24a and 24b on the inside of the outer plate 25, and a thick long base member 27 is formed along the bottom of the waist plate portion 23 below the entrance opening 29. Is provided.

The entrance frame 21 constituting the side entrance block 20 is formed with rising portions 21a and 21b in which the left and right sides of the vertical frame portion 22 are raised. Here, FIG. 6 is a view showing a BB cross section of FIG. The vertical frame portion 22 of the entrance frame 21 has a U-shaped cross section formed by left and right rises 21a and 21b. The inner rising 21a is formed in an annular shape along the shape of the inlet opening 29, and the outer rising 21b is formed up to a straight line portion excluding the curved portion above the comb tooth plate 24a.
Reinforcing bones 31 and 32, which are connected to the rising portion 21a and form a reinforcing material, are joined to the upper and lower sides of the entrance opening 29. In particular, the reinforcing bone 32 has a comb-tooth shape extending along the comb-tooth plates 24a and 24b. It has become.

  By the way, in the railway vehicle structure of this embodiment, as can be seen from FIG. 1 and FIG. 2, the upper part of the side structure extends to the roof structure side (not shown) and is curved. Therefore, the intermediate window block 10 and the side entrance block 20 similarly have a curved shape with the outer plates 11 and 25 upward. In the intermediate window block 10, a joint member 35 is provided along the curved shape of the outer plate 11 on the extension of the side column 12 and the curtain frame 15, and in the side entrance block 20, A joint member 36 along the curved shape of the outer plate 25 is provided at a comb tooth portion along the line 24b. The curved surface portion is provided with reinforcing members 37 and 38 having a hat-shaped cross section in the longitudinal direction so as to connect the joint members 35 and 36 respectively.

The intermediate window block 10 and the side entrance block 20 configured in this way are joined to form a side structure of the railway vehicle structure. At this time, in the present embodiment, the side entrance block 20 is joined to the intermediate window block 10 with the inner side of the vehicle body facing. Here, FIG. 7 is an external perspective view showing a joint portion at the upper entrance of the intermediate window block 10 and the side entrance block 20.
As shown in FIG. 6, the side entrance block 20 is applied to the outer plate 11 of the intermediate window block 10, particularly the vertical frame portion 22 of the entrance frame 21 and the upper portion of the vertical extension line from the inside. That is, in addition to the vertical frame portion 22, the comb tooth plate 24 a of the curtain plate portion 24 extending to the upper end of the side entrance block 20 and the end portion of the waist plate portion 23 are applied.

  Then, the entrance frame 21 of the side entrance block 20 applied from the inside of the vehicle body and the outer plate 11 of the intermediate window block 10 are joined together. In the present embodiment, welding using a laser is performed in particular, and as shown in FIG. 6, along the corner P that is a step between the body surface of the entrance frame 21 and the end of the outer plate 11 of the intermediate window block 10. Then, continuous welding by laser is performed. Accordingly, the laser beam is focused and irradiated from the outside of the vehicle body toward the corner P, and continuously moves along the end of the outer plate 11 while the outer plate 11 and the entrance frame 21 are heated and melted. By doing so, a linear weld line is formed at the overlapping portion of the outer plate 11 and the entrance frame 21.

  Therefore, according to the railway vehicle structure of the present embodiment, the butted ends of the upper outer plate 11A and the lower outer plate 11B are continuously joined by laser welding, so that the outer plate 11 can be made flat. Moreover, since the beads are not conspicuous by laser welding, the outer plate of the side structure can be planarized to improve the appearance. And the watertightness of the joint line 18 part is securable by welding the junction part of 11 A of upper outer plates and the lower outer plate 11B continuously by laser welding. This eliminates the need for the sealing material required for spot welding and eliminates the need for maintenance for replacing the sealing material.

In addition, since the abutting portion between the upper outer plate 11A and the lower outer plate 11B is at the height of the window opening 19 formed in the window block 10, the bonding line 18 is reduced by reducing the bonding area by welding. It can be less noticeable.
Furthermore, the strength of the joined portion can be maintained by overlapping the bone member 16 and joining the butted portion between the upper outer plate 11A and the lower outer plate 11B.

As mentioned above, although one Embodiment of the railway vehicle structure concerning this invention was described, this invention is not limited to this, A various change is possible in the range which does not deviate from the meaning.
In the above-described embodiment, the outer plate 11 of the intermediate window block 10 has been described, but the same applies to the outer plate in the vehicle end window block that joins the upper outer plate and the lower outer plate that are divided vertically.
Moreover, in the said embodiment, although the joining line 18 was provided in the height of the window opening part 19, you may make it provide a joining line in the waist board part under it.

It is the perspective view which showed the state isolate | separated about the intermediate | middle window block and side entrance block of the side structure which comprises the railway vehicle structure of embodiment from the vehicle body outer side. It is the perspective view which showed the state isolate | separated about the intermediate | middle window block and side entrance block of the side structure which comprises the railway vehicle structure of embodiment from the vehicle body inner side. It is a part of the side structure which comprises the railway vehicle structure of embodiment, Comprising: The side entrance block is joined to the both ends of the intermediate | middle window block, and the figure which showed the state from the vehicle inner side. It is the figure which showed the AA cross section of FIG. It is sectional drawing which showed the junction part of an upper outer plate and a lower outer plate. It is the figure which showed the BB cross section of FIG. It is the external appearance perspective view which showed the junction part of the entrance upper part of an intermediate | middle window block and a side entrance block. It is the side view which showed the conventional railway vehicle structure. It is the figure which showed the structure block which comprises the conventional railway vehicle structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Intermediate window block 11 Outer plate 11A Upper outer plate 11B Lower outer plate 12 Side pillar 13 Curtain belt member 14 Waist belt member 16 Bone member 18 Joining line 19 Window opening 20 Side entrance block 21 Entrance frame 22 Vertical frame portion 23 Waist plate portion 24 Curtain plate 25 Outer plate 29 Entrance opening

Claims (3)

A side structure is a railway block formed by joining a window structure having a window opening and a side entrance block having an entrance opening, and joining the roof structure, the end structure and the underframe in addition to the side structure. In the vehicle structure,
The window block has an upper outer plate including a curtain plate portion and a lower outer plate including a waist plate portion, and an upper plate and a lower outer plate arranged vertically. A railway vehicle structure characterized in that end portions that are butted together are continuously connected by laser welding. In the railway vehicle structure according to claim 1,
A railway vehicle structure characterized in that a joining line obtained by laser welding the upper outer plate and the lower outer plate is at the height of a window opening formed in the window block. In the railway vehicle structure according to claim 1 or claim 2,
A railway vehicle structure having a hat-shaped bone member having a cross-section, wherein a brim portion of the bone member is joined to the joint line from the inside of the vehicle body.

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