JP4594414B2 - Railway vehicle - Google Patents

Description

  The present invention relates to a railway vehicle having increased rigidity of a side structure in which an opening is formed, and in particular, to increase rigidity using an inner bone which is an existing bone member provided to support equipment. Related to railway vehicles.

  Railcars are constructed by joining the roof structure, side structure, underframe, and wife structure to each other, and the vehicle structure is constructed. Therefore, it is necessary to have a structure with increased rigidity. In such a case, since the outer plate constituting the vehicle structure itself does not have a bone member, a bone member such as a lateral bone or a vertical bone having a hat-shaped cross section is joined to the outer plate in order to increase rigidity. .

For example, Patent Document 1 below describes a part of the side outer plate shown in FIG. A bone member 102 having a hat-shaped cross section is joined to the inner surface of the outer plate 101 by laser welding. In particular, the bone member 102 is a horizontal bone (hereinafter referred to as a horizontal bone 102) arranged in the vehicle body lateral direction. Generally, since the outer surface of the outer plate 101 is polished in the lateral direction, a laser in which the lateral bone 102 is directly applied to the outer plate 101 in order to adjust the traveling direction of the laser beam to the polishing direction. Welding is performed. Here, FIG. 15 is a diagram showing a state in which the side structure of the railway vehicle is viewed from the inside of the vehicle. The side structure 110 has a low rigidity because the window opening 111 having a large area as illustrated is formed. Therefore, the vertical bones 103 such as the door bottom pillar 131 and the window pillar 132 are joined to the horizontal bone 102 by laser welding.
JP 2005-329412 A

  As in the conventional example, the longitudinal bone 103 is overlapped on the horizontal bone 102 and welded to obtain rigidity for suppressing the cross-sectional deformation of the side structure of the railway vehicle. However, the railway vehicle having the structure shown in Patent Document 1 has the effect of increasing the rigidity while the processing cost can be reduced compared to the case where the longitudinal bone 103 is floated from the outer plate 101 and is directly joined to the outer plate. It may be inferior. The larger the opening area of the side structure, the more the surrounding deformation cannot be ignored. On the other hand, if the rigidity is increased by using another member, not only the cost is increased by increasing the number of parts, but also the weight of the vehicle body is increased.

  Therefore, an object of the present invention is to provide a railway vehicle having increased rigidity without increasing the number of parts, in order to solve such a problem.

The railway vehicle according to the present invention is constituted by a vehicle structure in which a lateral bone is joined to an outer plate, and a longitudinal bone is joined to the transverse bone, and the vehicle structure has an inner bone for supporting equipment. The inner bone is disposed along one or both sides of the upper and lower sides of the window opening formed in the vehicle structure, and is provided above and below the window opening. It is characterized by being joined to a plurality of the longitudinal bones .

  In the railway vehicle according to the present invention, it is preferable that longitudinal bones are provided along the left and right sides of the window opening, and the inner bone is joined to the left and right longitudinal bones.

  Therefore, according to the present invention, the inner bone provided in the vehicle structure functions as a joint for connecting a plurality of bone members to each other in addition to functioning as an original equipment support, thereby increasing the number of parts. The rigidity of the vehicle structure can be increased without any problems.

  Next, an embodiment of a railway vehicle according to the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a side structure constituting the railway vehicle of the present embodiment. This railway vehicle is a stainless steel structure, and its side structure 1 is constituted by a vehicle structure in which parts such as a structure block are joined and combined. In the vehicle structure, the roof structure is joined to the upper part of the side structure 1, the wife structure is joined to the front and rear, and the underframe is joined to the bottom structure. In the side structure 1, two vehicle end window blocks 2, an intermediate window block 3, and three side entrance blocks 4 are joined between the window blocks 2 and 3. In the vehicle end window block 2 and the intermediate window block 3, for example, a side outer plate is formed by joining an upper outer plate and a lower outer plate which are divided into upper and lower parts, and a bone member or the like is joined to the inside of the vehicle body to maintain rigidity. Has been.

  Next, FIG. 2 is a view showing the intermediate window block from the inside of the vehicle, and the side inlet blocks 4 joined to both ends are shown. The intermediate window block 3 is configured by joining a bone member to the outer plate 11. 3 to 5 are cross-sectional views taken along the lines AA, BB, and CC in FIG. 2 in which the waist portion, the blowing portion, and the curtain portion of the intermediate window block are cut in a transverse direction so that such a structure can be easily understood. FIG. 6 is a cross-sectional view taken along the line DD in FIG. 2 with the waist section cut in the longitudinal direction.

  In the intermediate window block 3, a lateral bone 12 and a longitudinal bone 13, which are reinforcing members formed of a stainless steel plate material having a thickness of 1.5 mm, are joined to a stainless steel outer plate 11 having a thickness of 2 mm. In the following description, when a specific transverse bone 12 or longitudinal bone 13 is distinguished from other bones, a, b... As shown in FIG. 6, the horizontal bone 12 and the vertical bone 13 are each formed in a hat shape in which a three-dimensional portion 301 whose cross section is bent in a U shape and flange portions 302 projecting on both sides thereof are continuous. is there.

  In the present embodiment, for example, as shown in FIG. 6, the lateral bone 12 is directly joined to the outer plate 11, and the longitudinal bone 13 is joined to the lateral bone 12 so as to overlap. The horizontal bone 12 is laser-welded so as to follow the flange portion 302 superimposed on the outer plate 11, and the vertical bone 13 has the flange portion 302 overlapped with the three-dimensional portion 301 of the horizontal bone 12, and the overlapped portion. Laser welding is performed. In this embodiment, laser welding is used for joining the bone members, but as the joining means, spot welding or plug welding may be used in addition to laser welding. Also in this embodiment, plug welding or the like is partially used.

At the waist, as shown in FIG. 2, four horizontal bones 12 are joined to the outer plate 11. Above the horizontal bones 12, three vertical bones 13 a below the window opening 21 and a window opening are provided. Two vertical bones 13 b are joined along the left and right vertical sides of the portion 21. The uppermost horizontal bone 12b is formed with a flange portion 311 extending upward, and a helicopter portion 311a bent at the inner side of the vehicle is formed at the tip thereof, so that the window frame rigidity of the window opening 21 is increased. ing. The boundary P between the upper outer plate 11 and the lower outer plate 11 constituting the side outer plate is at the height of the flange portion 311, and the outer plate 11 divided into the upper portion is configured to be a vehicle body surface without a step. ing. On the other hand, a long base 14 having a trapezoidal cross section is joined below the outer plate 11, and a lower flange portion 14 a extends downward and is formed along the inner side beam 17. Moreover, the lower end part of the outer plate 11 is overlapped and joined to the side beam 17 and the flange part 14a.

  Here, FIG. 7 is a partially enlarged view of FIG. 3 showing the left end portion of the intermediate window block 3. It is a connecting portion with the side inlet block 4, and the side inlet frame 18 is overlapped and joined to the outside of the outer plate 11. The longitudinal bone 13c is joined to the inner side of the outer plate 11. The longitudinal bone 13c has a plurality of notches 131 (see FIG. 2) formed on the side surface of the three-dimensional portion 301 and the flange portion 302 on one side, thereby forming a lateral bone. The end of the tip of 12 is inserted. The longitudinal bone 13c is joined by laser welding of the flange portion 302 applied to the outer plate 11. However, since the side entrance frame 18 is on the surface side, no longitudinal welding mark appears on the surface of the vehicle body. .

  Next, as shown in FIG. 5, the transverse bone 12 is directly joined to the outer plate 11 at the curtain portion of the intermediate window block 3, and the longitudinal bone 13 is overlapped thereon and joined. FIG. 8 is a cross-sectional view taken along line EE of FIG. 2 showing the curtain portion. As shown in the drawing, the lateral bone 12 is joined to the outer plate 11, and the flange portion 302 of the lateral bone 12 d and the end portion of the roof structure 8 are overlapped and joined to the upper end portion thereof. On the other hand, the lowermost horizontal bone 12e in the curtain part is formed with a flange part 313 extending downward, and a helically bent part 313a bent inward is formed at the tip thereof, and the window frame rigidity of the window opening 21 is increased. Has been enhanced.

Subsequently, as shown in FIG. 2, a shear plate 31 as a reinforcing member is attached to the blowing portion where shearing force is easily applied. The shear plate 31 is a stainless steel plate having a thickness of 1.5 mm with respect to the outer plate 11 having a thickness of 2 mm, and is provided on both the left and right sides of the window opening 21. The shear plate 31 is large enough to overlap the entire blowing portion, and in particular, a protrusion 31a is formed vertically so as to extend around the window corners R1 to R4 of the window opening 21, and the window corners R1 to R4 are formed. It is shaped to reinforce.

  In the blowing part, the bone member is joined from above the shear plate 31. Since the rigidity is enhanced by the shear plate 31, the intermediate longitudinal bone 13 is omitted. As shown in FIG. 4, the blowing portion is joined by laser welding with the shear plate 31 overlapped on the outer plate 11, but is joined by running a laser in the vehicle body lateral direction in the same manner as the lateral bone 12. The transverse bone 12f is joined to such a shear plate 31 by laser welding, and the longitudinal bones 13b and 13c are joined to both ends thereof. The longitudinal bone 13b is joined by making one side longer and having one stepped flange portion 314 applied to the shear plate 31. In this case, even if laser welding is performed in the vertical direction, since the shear plate 31 is in between, no vertical welding mark appears on the surface of the outer plate 11.

  Since the outer plate 11 is easily deformed due to stress at the end portion, the strength is ensured by joining bone members along the outer shape line. In this embodiment, the window frame of the window opening 21 is secured. A helicopter erected along the line is formed. Therefore, a helicopter 31b is formed in the shear plate 31 along the shape of the window opening 21 as shown in FIG. Furthermore, helicopter portions are similarly formed above and below the window opening 21. Here, FIG. 9 and FIG. 10 are views showing the window corners R1 or R2, both of which (a) is a partially enlarged view of FIG. 2, and (b) is a transverse sectional view thereof. is there.

  The lateral bone 12b is joined to the outer plate 11 at the waist below the window opening 21 shown in FIG. 9, and the inner bone 16 is joined to the inside of the vehicle (see FIG. 6). The horizontal bone 12b is a helicopter 311a in which the flange 311 on the window opening 21 side extends upward and the tip is bent. The flange portion 311 is cut out so as not to interfere with the protruding portion 31 a of the shear plate 31. Are continuous. The flange portion 311 and the shear plate 31 are connected by a gusset 32, and the gusset 32 also has a helicopter portion 32a. In addition, such a structure is formed symmetrically in the window opening 21 and is similarly configured in the right window corner R4.

  Next, the lateral bone 12e is joined to the outer plate 11 at the waist above the window opening 21 shown in FIG. 10, and the inner bone 26 is superimposed and joined thereto (see FIG. 8). A cutout is formed in the inner bone 26, and the end of the longitudinal bone 13b is inserted and joined thereto. The horizontal bone 12e is a helicopter 315a in which the flange 315 on the window opening 21 side extends and the tip is bent. The flange portion 315 is cut out so as not to interfere with the projection portion 31 a of the shear plate 31, and the helically bent portion 315 a of the flange portion 315 and the helically bent portion 31 b of the shear plate 31 follow the frame shape of the window opening 21. Are continuous. The flange portion 315 and the shear plate 31 are connected by a gusset 33, and the gusset 33 also has a helicopter portion 33a. In addition, such a structure is formed symmetrically in the window opening 21 and is similarly configured in the right window corner R3.

  Therefore, the blowing portion of the railway vehicle is likely to be wrinkled on the outer plate surface due to insufficient strength, but in this embodiment, the lack of strength is compensated for by increasing the rigidity by overlapping the shear plate 31 on the blowing portion. In particular, since the projections 31 are formed and reinforced with respect to the window corners R1 to R4 of the window opening 21, the strength where the high stress is generated can be sufficiently ensured. Furthermore, along the frame shape including the window corners R1 to R4 of the window opening 21, the helicopter 31b of the shear plate 31 and the helicopters 311a and 315a of the flanges 311 and 315 of the bone members are formed. Therefore, in this respect as well, the structure is more rigid. Therefore, even in a railway vehicle in which the window opening 21 having a large area is formed in the side structure, the rigidity against the out-of-plane deformation can be increased by improving the rigidity of the vehicle body. Further, since the helicopter portions 31b, 311a, and 315a are formed in a circumferential shape along the frame shape of the window opening 21, this can also serve as a seal pool around the window.

Next, a mounting structure for railcar equipment will be described. FIG. 11 is a view showing the attachment portion of the long sheet. The seat 40 is composed of a cushion 41 and a back slip 42. The cushion 41 is provided on a seat frame 43, and the back slip 42 is mounted on a back frame (not shown). The stool 40 is configured such that the frame 43 and the like are fixed to the bone members 12 and 13 side of the structure to support the load applied to the stool 40. As shown in FIG. 2, three longitudinal bones 13 a are joined to the waist of the intermediate window block 3 under the window opening 21. A reinforcing plate 46 is joined to the vertical bone 13a, and a seat frame 43 is fastened thereto by bolts.

  Incidentally, a support plate 56 is joined to the inner bone 16, and a window component 58 is screwed to the support plate 56. A decorative plate 60 is screwed to the inner bone 16 on the inner side of the vehicle. The inner bone 16 itself has little function of increasing rigidity, but in this embodiment, as shown in FIG. 2, the inner bone 16 is disposed along the lower side of the window opening 21 and joined to the longitudinal bone 13. It has a rigid structure.

Inner bone 16 is disposed between the left and right vertical bone 13b, as shown in FIG. 6, as can be put on the upper end of the vertical bones 13a a manner are joined. The inner bone 16 is a plate member having an L-shaped cross section, and is joined to the solid portion 301 of the transverse bone 12b by laser welding or the like, and joined to the longitudinal bones 13a and 13b by plug welding. The end of the inner bone 16 is joined to the longitudinal bone 13b by a gusset 25 as shown in FIG. 9 (a). One of the gussets 25 is placed on the longitudinal bone 13b, the other is placed in the inner bone 16, and plug welding is performed on the perforated long hole 161. Then, for the longitudinal bone 13a in three, as shown in FIG. 12, the plug weld is made and joined to the long hole 162 drilled.

  The inner bone provided in the vehicle structure is configured for the purpose of supporting the equipment, and thus the conventional inner bone has a floating tip as shown in the cross section of FIG. 9B, for example. It was attached in a state. In this regard, in this embodiment, the inner bone 16 is joined to the longitudinal bones 13b and 13b, thereby functioning as a joint for connecting a plurality of bone members to each other. Therefore, on the lower side of the window opening portion 21, the longitudinal bones 13b and 13b are joined by the inner bone 16, and a rigid structure is obtained by increasing the rigidity.

  Further, even at the lower end side of the longitudinal bone 13, as shown in FIG. 6, the inner bone 61 is joined to the side beam 17 so that a rigid structure is formed. As shown in FIG. 2, the inner bone 61 is spanned between the longitudinal bones 13c at both ends of the intermediate window block 3, and is in contact with and joined to the longitudinal bones 13a and 13b in addition to the longitudinal bone 13c. A long hole is formed in a contact portion with the vertical bone 13 and joined by plug welding. Therefore, at the lower end side of the side structure, the inner bone 61 functions as a joint, and the longitudinal bones 13 and the side beams 17 are connected to each other, so that the structure has a stronger structure with increased rigidity.

Next, FIG. 13 is a cross-sectional view showing the mounting structure of the cargo rack assembled to the side structure. The load shelf 65 is configured by a plurality of load receiving rods 66 laid on load shelf brackets 67 arranged at predetermined intervals in the longitudinal direction of the vehicle body. And the load shelf bracket 67 is applied to the decorative board 68, the vertical bone 13d provided on the back side, and the screw seat 71 are further overlapped, and the load shelf 65 is fixed by screwing. Again, Tatekotsu 13d laterally bone 12 is joined at its upper end is joined to the long digits 180 of the roof structure 8.

  By the way, the members such as the inner bone 26 are originally for supporting the window frames 72 and 73 and are not provided for the purpose of increasing the rigidity of the vehicle structure like the bone members 12 and 13. Therefore, the conventional inner bone has almost no function of increasing the rigidity, but in this embodiment, as shown in FIG. 10B, the inner bone 26 is formed into the longitudinal bones 13d and 13b together with the horizontal bone 12e. It is joined and functions as a joint for connecting the bone members. That is, as shown in FIG. 10A, the inner bone 26 is applied to the three-dimensional part 301 of the longitudinal bones 13b and 13d, and is joined to a long hole 261 formed in the part by plug welding. ing. Accordingly, the inner bone 26 is configured to connect the longitudinal bones 13d and 13b to form a rigid structure, and in particular, is arranged along the upper side of the window opening 21 to increase the rigidity of the opening. ing.

  Therefore, the inner bone basically plays a role of supporting the equipment and has a low contribution to improving the rigidity of the vehicle body. However, in this embodiment, the inner bones 16, 26, 61 can now be used to improve vehicle body rigidity. Although the railway vehicle is required to be lighter, the rigidity is effectively improved without increasing the mass by using the inner bones 16, 26, and 61 without separately using a bone member. In particular, the inner bones 16 and 26 were able to suppress the out-of-plane deformation of the upper and lower portions of the window opening 21 and strengthen the side structure. That is, the rigidity around the window could be increased by increasing the number of joints by the inner bones 16, 26 and 61.

Although one embodiment of the railway vehicle according to the present invention has been described above, the present invention is not limited to such an embodiment, and various modifications can be made without departing from the spirit of the present invention.
In the above embodiment, the intermediate window block 3 of the side structure 1 is taken as an example, and the structure in which the inner bones 16, 26, 61 are joined to the longitudinal bones 13 is shown, but a roof structure or a wife structure other than the side structure 1, or Similarly, the inner bones in the vehicle end window block 2 and the side entrance block 4 of the side structure 3 may be joined to each other by joining a plurality of bone members.
Moreover, although welding was shown in each location by applying laser welding or plug welding, the welding method at each location is not necessarily limited to the joining method.

It is the figure which showed the side structure about one Embodiment of a rail vehicle. It is the figure which showed the intermediate | middle window block of the rail vehicle from the vehicle inner side . It is AA sectional drawing of FIG. 2 which cut the waist | hip | lumbar part of the intermediate | middle window block into the horizontal direction. It is BB sectional drawing of FIG. 2 which cut the blowing part of the intermediate | middle window block in the horizontal direction. It is CC sectional drawing of FIG. 2 which cut the curtain part of the intermediate | middle window block in the horizontal direction. It is DD sectional drawing of FIG. 2 which cut the waist | hip | lumbar part of the intermediate | middle window block to the vertical direction. FIG. 4 is a partially enlarged view of FIG. 3 showing a left end portion of the intermediate window block. It is EE sectional drawing of FIG. 2 which cut the curtain part of the intermediate | middle window block in the vertical direction. It is the figure which expanded and showed the window corner part by the side of the waist in a window opening part. It is the figure which expanded and showed the window corner part by the side of the curtain part in a window opening part. It is the figure which showed the attachment part of the long sheet. It is the figure which showed the junction part of the inner bone with respect to a longitudinal bone. It is sectional drawing which showed the attachment structure about the load shelf assembled | attached to the side structure. It is the figure which showed the bone member joined to the outer plate | board. It is a figure which shows the state which looked at the side structure of the conventional railway vehicle from the vehicle inner side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side structure 3 Intermediate | middle window block 11 Outer plate 12 Horizontal bone 13 Longitudinal bone 21 Window opening part 16,26,61 Inner bone 40 Seat 65 65 Shelf

Claims (2)

In a railway vehicle in which a lateral bone is joined to an outer plate, and the transverse bone is composed of a vehicle structure in which a longitudinal bone is joined, and the inner structure for supporting equipment is joined to the vehicle structure. ,
The inner bone is disposed along one or both sides of the upper and lower sides of the window opening formed in the vehicle structure, and joined to the plurality of vertical bones provided above and below the window opening. railway vehicle, characterized in that. The railway vehicle according to claim 1 ,
A railway vehicle is characterized in that longitudinal bones are provided along the left and right sides of the window opening, and the inner bone is joined to the left and right longitudinal bones.

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