JP6452494B2 - Railway vehicle - Google Patents

Description

  The present invention relates to a railway vehicle, and more particularly to a railway vehicle capable of reducing the number of plate material processing steps when joining plate members together.

  A railway vehicle is manufactured by, for example, assembling a structure by welding a plurality of metal plate members constituting an outer plate to a bone member, and joining the structure. As a method of joining the plates to be welded to the bone members, the end of one of the two plates is subjected to a step thickness (griding) for the thickness of the plate, and another plate is placed there. A method of making a lap joint by laser welding after superposition is known (Patent Document 1).

Japanese Patent No. 4224502

  However, in the technique disclosed in Patent Document 1, since it is necessary to perform margin processing on the end portion of the plate material, there is a problem that the number of processing steps increases accordingly.

  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 capable of reducing the number of processing steps for plate members when joining plate members.

  In order to achieve this object, the railway vehicle according to claim 1 constitutes a part of the outer plate, two plates whose sides are butted against each other, and the two plates. A belt-like joining member that is stacked on the vehicle outer surface of the two plate members along the length direction of the side while straddling the abutted sides of the two sheets, and between the joining member and the two plate members There are provided a first joint and a second joint that are continuously joined along the length direction of the side by welding.

  A railcar according to a second aspect is the railcar according to the first aspect, wherein the sides of the two plates are abutted at a predetermined distance.

  The railway vehicle according to claim 3 is the railcar according to claim 1 or 2, wherein at least one of the first joint portion and the second joint portion joins between the joint member and the plate member and along the side. A plurality of beads to be arranged are formed at intervals.

  The railway vehicle according to claim 4 is the railcar according to any one of claims 1 to 3, wherein the two plate members and the joining member constitute at least a part of an outer plate of a side structure or a wife structure, In the two plate members, the sides are arranged in the vehicle length direction of the side structure or along the vehicle width direction of the wife structure, and the joining member is located on the vehicle outer side of the side located on the upper side in the vertical direction. The surface is provided with an inclined surface that is inclined downward.

  According to the railway vehicle of the first aspect, the two plate members constituting a part of the outer plate are arranged on the same plane with the sides butting each other. A band-shaped joining member is superimposed on the vehicle outer side surface of the two plates along the length direction of the two plates while straddling the abutted sides of the two plates. The joining member and the two plate members are joined successively along the length direction of the side by lap welding of the first joining portion and the second joining portion. Since it is not necessary to perform edge processing on the edge part of a board | plate material, there exists an effect which can reduce the processing man-hour of the board | plate material when joining board | plate materials.

  Since the first joint portion and the second joint portion continuously join the joining member and the two plate members along the length direction of the side, the joining member and the plate member are compared with joining by spot welding. There is an effect that the work of filling the gap with the sealing material and the maintenance work of the filled sealing material can be made unnecessary.

  Further, since the joining member is overlapped on the surface of the two plate members on the vehicle exterior side, a gap or a joint between the plate members formed by the sides of the two plate members being abutted with each other can be covered with the joining member. Therefore, there exists an effect which can prevent that the beauty | look is impaired by seeing the clearance gap between board | plate materials.

  Furthermore, since the joining member and the two plate members are joined by lap welding, there is an effect that the management of the route interval necessary when joining the plate members by butt welding can be made unnecessary.

  According to the railway vehicle of claim 2, the sides of the two plate members are abutted at a predetermined distance. By that distance, the standard for managing the waviness of the side of the plate that affects the distance between the sides of the plate can be relaxed. Therefore, in addition to the effect of claim 1, there is an effect that the production management of the plate material can be simplified.

  According to the railway vehicle according to claim 3, at least one of the first joint portion and the second joint portion joins between the joining member and the plate material, and the beads arranged along the side are spaced apart from each other. Are formed. Thereby, in addition to the effect of Claim 1 or 2, there exists an effect which can improve the intensity | strength (especially fatigue strength) of the 1st junction part which a bending stress acts, and a 2nd junction part.

  According to the railway vehicle of claim 4, the two plate members and the joining member constitute at least a part of the outer plate of the side structure or the wife structure, and the two plate members are arranged in the vehicle length direction of the side structure, Alternatively, the sides are arranged along the vehicle width direction of the wife structure. In addition to the effect of any one of claims 1 to 3, rainwater can be easily allowed to flow down by the inclined surface, since the outer surface of the side located on the upper side in the vertical direction of the joining member is provided with the inclined surface. In addition, there is an effect that it is difficult to deposit dust on the joining member.

1 is a perspective view of a railway vehicle according to a first embodiment of the present invention. It is a side view of a railway vehicle. (A) is sectional drawing of the railway vehicle in the IIIa-IIIa line of FIG. 2, (b) is sectional drawing of the railway vehicle in 2nd Embodiment, (c) is the railway vehicle in 3rd Embodiment. FIG. (A) is a side view of the railway vehicle in 4th Embodiment, (b) is a side view of the railway vehicle in 5th Embodiment.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, with reference to FIG.1 and FIG.2, the rail vehicle 10 in 1st Embodiment is demonstrated. FIG. 1 is a perspective view of a railcar 10 in the first embodiment, and FIG. 2 is a side view of the railcar 10. In FIG. 2, a part of the side structure 11 in the vehicle length direction is not shown.

  As shown in FIG. 1, the railway vehicle 10 is assembled by joining a side structure 11, a roof structure 20, a wife structure 21, and a frame (not shown). As shown in FIG. 2, the side structure 11 includes a waist plate 12 extending in the vehicle length direction (left and right direction in FIG. 2), a blowing plate 13 positioned above the waist plate 12 in the vertical direction, and a vertical direction of the blowing plate 13. And a curtain plate 14 located on the upper side, which are joined to a bone member (not shown) by welding.

  The waist plate 12, the blowing plate 13 and the curtain plate 14 are stainless steel plate materials constituting the side outer plate (outer plate). In the side structure 11, a window 15 is provided in the blowing plate 13, and a door 16 is provided in a vertical direction from the waist plate 12 to the curtain plate 14. Joining members 17 and 18 are disposed between the waist plate 12 and the blowing plate 13 and between the blowing plate 13 and the curtain plate 14, respectively. The joining members 17 and 18 are stainless steel strip-shaped plate members, and a long side is arranged in the vehicle length direction (left and right direction in FIG. 2) and a short side is arranged in the vehicle height direction (up and down direction in FIG. 2). In the present embodiment, the joining members 17 and 18 are formed of a stainless steel plate that has been subjected to oxidation coloring treatment.

  Next, with reference to Fig.3 (a), the joining structure of the waist board 12 and the blowing board 13 using the joining member 17 is demonstrated. FIG. 3A is a cross-sectional view of the railway vehicle 10 taken along line IIIa-IIIa in FIG. In FIG. 3A, illustration of bone members to which the waist plate 12 and the blowing plate 13 are joined is omitted.

  As shown in FIG. 3A, the waist plate 12 and the blowing plate 13 are arranged on the same plane with the long sides 12a and 13a butting each other. In the present embodiment, the distance G between the long sides 12a and 13a is set to about 5 mm.

  The joining member 17 straddles the long sides 12a and 13a with which the waist plate 12 and the blowing plate 13 are abutted, and extends along the length direction of the long sides 12a and 13a. (A) Overlaid on the left side. The length of the short side of the joining member 17 (the width W of the joining member 17) is set to 40 to 70 mm. Since the joining member 18 is joined in the same manner as the joining member 17, the description thereof is omitted. The joining member 17 and the waist plate 12 and the blowing plate 13 are joined by the first joining portion 31 and the second joining portion 32.

  The 1st junction part 31 is a site | part by which the joining member 17 and the blowing board 13 are continuously joined along the length direction (FIG. 3 (a) perpendicular | vertical direction of a paper surface) of the long side 13a by lap welding. is there. The second joint portion 32 is a portion where the joint member 17 and the waist plate 12 are joined continuously along the length direction of the long side 12a (the vertical direction in FIG. 3A) by lap welding. The first joint portion 31 and the second joint portion 32 are each provided with one linear bead by laser welding. In this laser welding, laser light is irradiated from the blowing plate 13 side or the waist plate 12 side at a constant output that has a predetermined melting depth that does not penetrate the joining member 17 that is the outer surface of the vehicle body. Since the bead is prevented from being exposed to the outer surface of the vehicle body of the joining member 17, it is possible to prevent the appearance of the outer plate of the railway vehicle 10 from being damaged by the bead exposed to the outer surface.

  Since the waist plate 12 and the blowing plate 13 are joined via the joining member 17 as described above, it is possible to eliminate the need to perform a margin process on the end portions of the waist plate 12 and the blowing plate 13. Therefore, the processing man-hours of the waist plate 12 and the blowing plate 13 when joining the waist plate 12 and the blowing plate 13 can be reduced.

  The 1st junction part 31 and the 2nd junction part 32 continue the joining member 17, the waist board 12, and the blowing board 13 along the length direction (Fig.3 (a) paper surface perpendicular | vertical direction) of the long sides 12a and 13a. Therefore, it is possible to eliminate the need for filling the sealing material into the gap between the joining member 17 and the waist plate 12 and the blowing plate 13 and maintaining the filled sealing material, compared to joining by spot welding.

  Since the joining member 17 is superimposed on the outer surface of the waist plate 12 and the blowing plate 13, a gap (distance G) and a joint formed by the long sides 12 a and 13 a of the waist plate 12 and the blowing plate 13 are abutted with each other. Can be covered. Therefore, it is possible to prevent the appearance of the outer plate from being damaged by seeing the gap (distance G) between the waist plate 12 and the blowing plate 13. Moreover, since the joining members 17 and 18 are formed of a stainless steel plate that has been subjected to an oxidation coloring process, the joining members 17 and 18 are linearly shaped with excellent corrosion resistance and weather resistance in the vehicle length direction (left and right direction in FIG. 2). Can be formed.

  Here, when the joining member 17 is joined to the inner surface of the waist plate 12 and the blowing plate 13, the joining member 17 interferes with a side column (bone member) extending in the vertical direction. In order to avoid this, it is necessary to change the shape of a part of the bone member so as not to interfere with the joining member 17. On the other hand, according to this Embodiment, since the joining member 17 is joined to the vehicle outer side surface of the waist plate 12 and the blowing plate 13, the joining member 17 can be prevented from interfering with the side column (bone member). Therefore, the design change of the bone member of the railway vehicle 10 can be made unnecessary.

  Since the joining member 17 and the waist plate 12 and the blowing plate 13 are joined by lap welding, it is possible to eliminate the management of the route interval required when joining the waist plate 12 and the blowing plate 13 by butt welding. When the waist plate 12 and the blowing plate 13 are joined by butt welding, the gap between the waist plate 12 and the blowing plate 13 is not filled with the weld metal due to the influence of the route interval, but a welding defect may occur. Since the joining member 17 and the waist plate 12 and the blowing plate 13 are joined together, variations in joining strength can be made difficult to occur.

  Further, the waist plate 12 and the blowing plate 13 are abutted on the long sides 12a and 13a with a distance G therebetween. The undulation of the long side 12a and 13a of the blowing plate 13 that affects the distance G between the long side 12a of the waist plate 12 and the long side 13a of the blowing plate 13 is managed by the distance G. The standard can be relaxed. Therefore, manufacturing management of the waist plate 12 and the blowing plate 13 can be simplified.

  Next, a second embodiment will be described with reference to FIG. In the first embodiment, the case where one bead is placed in each of the first joint portion 31 and the second joint portion 32 has been described. On the other hand, 2nd Embodiment demonstrates the case where two beads are placed in the 1st junction part 41 and the 2nd junction part 44 each. In addition, about the part same as the part demonstrated in 1st Embodiment, the same code | symbol is attached | subjected and the following description is abbreviate | omitted. FIG. 3B is a cross-sectional view of the railway vehicle according to the second embodiment. Note that FIG. 3B shows a cross-sectional shape orthogonal to the vehicle length direction of the railway vehicle, similarly to the cross-sectional view shown in FIG.

  The 1st junction part 41 is a site | part by which the joining member 17 and the blowing board 13 are continuously joined along the length direction (FIG.3 (b) paper surface perpendicular | vertical direction) of the long side 13a by lap welding. is there. The 2nd junction part 44 is a site | part by which the joining member 17 and the waist board 12 are continuously joined along the length direction (FIG.3 (b) paper surface perpendicular | vertical direction) of the long side 12a by lap welding. In the first joint portion 41 and the second joint portion 44, two linear beads 42, 43, 45, 46 formed by laser welding are placed at intervals from each other.

  Since a plurality of beads 42, 43, 45, 46 are provided in each of the first joint 41 and the second joint 44, the strength (particularly fatigue) of the first joint 41 and the second joint 44 on which bending stress acts. Strength) can be improved. The beads 42, 43, 45, 46 can be formed by welding one by one in order. It is also possible to form beads 42, 43, 45, 46 at a time by performing a plurality of laser welding.

  Next, a third embodiment will be described with reference to FIG. 1st and 2nd embodiment demonstrated the case where the long side of the joining member 17 was squared. On the other hand, 3rd Embodiment demonstrates the case where a chamfer is given to the long side of the joining member 57. FIG. In addition, about the part same as the part demonstrated in 1st Embodiment, the same code | symbol is attached | subjected and the following description is abbreviate | omitted. FIG.3 (c) is sectional drawing of the rail vehicle in 3rd Embodiment. Note that FIG. 3C illustrates a cross-sectional shape orthogonal to the vehicle length direction of the railway vehicle, similarly to the cross-sectional view illustrated in FIG.

  The joining member 57 is a stainless steel belt-like plate member, and a long side is arranged in the vehicle length direction (FIG. 3C) and a short side in the vehicle height direction (FIG. 3C). . The joining member 57 straddles the long sides 12a and 13a with which the waist plate 12 and the blowing plate 13 are abutted, and extends along the length direction of the long sides 12a and 13a. (C) Overlaid on the left side).

  The joining member 57 has an inclined surface 58 on which the long-side surface on the vehicle body side located on the upper side in the vertical direction (the vertical direction in FIG. 3C) is inclined downward. The inclined surface 58 is an upwardly convex curved surface, and is formed over the longitudinal direction of the joining member 57 (FIG. 3C, the direction perpendicular to the paper surface). In addition, the joining member 57 has an inclined surface 59 on which the long-side surface on the vehicle body side located on the lower side in the vertical direction is inclined downward. The inclined surface 59 is a substantially flat surface and is formed over the longitudinal direction of the joining member 57.

  Since the joining member 57 includes an inclined surface 58 whose upper side of the long side located on the upper side in the vertical direction is inclined downward, it is easy to allow rainwater to flow down by the inclined surface 58, and the long side of the joining member 57 It is difficult to deposit dust. Further, by forming the inclined surface 58, it is possible to reduce the impression that the joining member 57 protrudes to the outside of the vehicle against the blowing plate 13 as compared with the case where the inclined surface 58 is not provided, and from the curved surface. A gentle atmosphere can be obtained by the inclined surface 58. Furthermore, by forming the inclined surface 59 on the long side located on the lower side in the vertical direction, the impression that the joining member 57 protrudes to the vehicle outer side with respect to the waist plate 12 is reduced as compared with the case where the inclined surface 59 is not provided. it can.

  Next, a fourth embodiment will be described with reference to FIG. In the first to third embodiments, the case where the blowing plate 13 is formed in a plate shape continuous in the vehicle length direction except for the door 16 portion has been described. On the other hand, in 4th Embodiment, the rail vehicle 60 which has the blowing board 63 by which the joint was set to the position of the vertical side of the window 15 is demonstrated. In addition, about the part same as the part demonstrated in 1st Embodiment, the same code | symbol is attached | subjected and the following description is abbreviate | omitted. FIG. 4A is a side view of the railway vehicle 60 in the fourth embodiment.

  As shown in FIG. 4A, the side structure 61 of the railway vehicle 60 includes a waist plate 62 extending in the vehicle length direction, a blowing plate 63 positioned above the waist plate 62 in the vertical direction, and a vertical direction of the blowing plate 63. And a curtain plate 64 positioned on the upper side, and these are joined to a bone member (not shown) by welding. The waist plate 62, the blowing plate 63, and the curtain plate 64 are stainless steel plate materials that constitute the side outer plates (outer plates).

  The blowing plate 63 has a seam set at the position of the vertical side of the window 15 and is joined to the waist plate 62 and the curtain plate 64 by joining members 67 and 68 made of stainless steel plates. The joining of the waist plate 62 and the curtain plate 64 and the blowing plate 63 by the joining members 67 and 68 is the joining of the waist plate 12 and the blowing plate 13 by the joining member 17 described in the first embodiment or the second embodiment. The explanation is omitted because it is the same as. According to the railway vehicle 60, since the joint of the blowing plate 63 is set at the position of the vertical side of the window 15, the plate material that forms the blowing plate 63 is equivalent to the length of the window 15 in the vehicle length direction. The amount can be reduced.

  Next, a fifth embodiment will be described with reference to FIG. In the first to fourth embodiments, the case where the side outer plates (outer plates) are configured by the waist plates 12, 62, the blowing plates 13, 63, and the curtain plates 14, 64 has been described. In contrast, in the fifth embodiment, a rail vehicle 70 in which a side outer plate is formed by a first plate 72 and a second plate 73 disposed above the first plate 72 will be described. In addition, about the part same as the part demonstrated in 1st Embodiment, the same code | symbol is attached | subjected and the following description is abbreviate | omitted. FIG. 4B is a side view of the railway vehicle 70 according to the fifth embodiment.

  As shown in FIG. 4B, the side structure 71 of the railway vehicle 70 includes a first plate 72 extending in the vehicle length direction, and a second plate 73 positioned above the first plate 72 in the vehicle height direction (vertical direction). And they are joined to a bone member (not shown) by welding. The first plate 72 and the second plate 73 are stainless steel plate materials having substantially the same height (the vertical dimension in FIG. 4B). In the first plate 72 and the second plate 73, a seam in the vehicle height direction is set at the position of the vertical side of the window 15. The first plate 72 and the second plate 73 are joined by a joining member 74 made of a stainless steel plate overlaid at the seam. Since the joining of the first plate 72 and the second plate 73 by the joining member 74 is the same as the joining of the waist plate 12 and the blowing plate 13 by the joining member 17 described in the first embodiment or the second embodiment, description will be given. Is omitted.

  According to the railway vehicle 70, the side outer plates are formed by the first plate 72 and the second plate 73, so that the joint of the first plate 72 and the second plate 73 can be arranged in a row. Therefore, the joining members 74 covering the seam can be arranged in a row. Further, since the seam in the vehicle height direction is set at the position of the vertical side of the window 15, the joining member 74 is divided. As a result, the amount of the plate material forming the joining member 74 can be reduced by the length of the window 15 in the vehicle length direction.

  The present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed.

  In each of the above embodiments, the waist plates 12, 62, the blowing plates 13, 63 and the curtain plates 14, 64 constituting the outer plate of the side structure 11 are joined via the joining members 17, 18, 57, 67, 68. In this case, the case where the first plate 72 and the second plate 73 are joined via the joining member 74 has been described, but the present invention is not necessarily limited thereto. Of course, it is possible to join arbitrary plate materials constituting the outer plate of the railway vehicle 10 by using a bonding member. As an arbitrary board | plate material, the board | plate material which comprises the outer plate | board of the roof structure 20 or the wife structure 21 is mentioned.

  In each of the above embodiments, the overlapping portion of the waist plate 12 and the blowing plate 13 and the joining member 17, the overlapping portion of the blowing plate 13, the curtain plate 14 and the joining member 18, the waist plate 62 and the blowing plate 63 and the joining member. 67, the overlapping portion of the blowing plate 63 and the curtain plate 64 and the joining member 68, the first joining portion 31 formed on the overlapping portion of the first plate 72 and the second plate 73 and the joining member 74, Although the case where a linear bead is placed on 41 and the 2nd junction parts 32 and 44 was explained, it is not necessarily restricted to this. Of course, corrugated beads can be formed by laser welding on these overlapping portions (for example, the overlapping portion between the waist plate 12 and the blowing plate 13 and the joining member 17). Examples of the waveform bead include a sinusoidal curve in which the center in the amplitude direction is located at the center in the width direction of the overlapping portion and is continuous in the longitudinal direction. According to the wavy bead, it is possible to increase the width of the joint portion by the amplitude even with a laser beam having a small line width. Further, since welding is performed with one bead, problems such as warpage of the plate material caused by heat input can be solved when a plurality of beads are placed in order.

  In the above embodiments, the waist plates 12, 62, the blowing plates 13, 63, the curtain plates 14, 64, the first plate 72, the second plate 73, and the joining members 17, 18, 57, 67, 68, 74 are made of stainless steel. Although the case where it formed with steel board | plate materials was demonstrated, it is not necessarily restricted to this, Of course, it is possible to form these with steel materials other than stainless steel. Moreover, although the case where the joining members 17 and 18 were formed with the stainless steel plate in which the oxidative coloring process was performed was demonstrated, it is not necessarily restricted to this, The uncoated stainless steel plate in which the oxidative coloring process has not been performed Of course, it is possible to adopt. Of course, it is possible to apply a coating to a plate made of a steel material other than stainless steel.

  In each of the above embodiments, the case where the first joint portions 31 and 41 and the second joint portions 32 and 44 are formed by laser welding has been described. However, the present invention is not necessarily limited to this, and other joining methods are employed. Of course it is possible. Examples of other joining methods include arc welding and friction stir welding.

  In the third embodiment, the case where the joining member 57 is provided with the inclined surface 58 in the case of the side structure 11 has been described. However, the present invention is not limited to this, and the joining member constituting the outer plate of the wife structure 21 is not limited thereto. It is naturally possible to provide an inclined surface. In this case, the two plate members constituting a part of the outer plate of the wife structure 21 are arranged such that the sides to be faced with each other are along the vehicle width direction of the wife structure 21, and the joining members are overlapped along the sides. . The inclined surface is provided on the surface on the vehicle outer side of the side located on the upper side in the vertical direction of the joining member. Thereby, dust etc. can be prevented from accumulating on the side located on the upper side of the joining member in the vertical direction.

  In the third embodiment, the inclined surface 58 formed with the curved surface is disposed on the upper side in the vertical direction of the joining member, and the inclined surface 59 formed with the flat surface is disposed on the lower side in the vertical direction. Although described, it is not necessarily limited to this, and the inclined surface 59 is not necessarily required. Instead of the inclined surface 58, it is naturally possible to arrange the inclined surface 59 formed in a flat surface on the upper side in the vertical direction. It is naturally possible to provide the inclined surfaces 58 and 59 on the upper side in the vertical direction of the joining members 17, 18, 67, 68 and 74.

10, 60, 70 Railway vehicle 11, 61, 71 Side structure 12, 62 Lumbar plate (plate material)
12a Long side (side)
13, 63 Blown board (plate material)
13a Long side (side)
14,64 Curtain board (plate material)
17, 18, 57, 67, 68, 74 Joint member 21 Wife structure 31, 41 First joint portion 32, 44 Second joint portion 42, 43, 45, 46 Bead 58 Inclined surface 72 First plate (plate material)
73 Second plate (plate material)

Claims (4)

Two plate members that constitute a part of the outer plate and whose sides are butted against each other and arranged on the same plane,
A strip-shaped joining member that is superimposed on the vehicle outer side surface of the two plates along the length direction of the two sides while straddling the abutted sides of the two plates.
It is characterized by comprising a first joint portion and a second joint portion that join each of the joining member and the two plate members continuously in the length direction of the side by lap welding. Railway vehicle.   The railway vehicle according to claim 1, wherein the two plate members are abutted against each other at a predetermined distance.   At least one of the first joint portion and the second joint portion is formed by joining a plurality of beads arranged along the side while joining between the joining member and the plate member at intervals. The railway vehicle according to claim 1 or 2, wherein The two plate members and the joining member constitute at least a part of the outer plate of the side structure or the wife structure,
The two plate members are arranged with the sides in the vehicle length direction of the side structure or along the vehicle width direction of the wife structure,
The railway vehicle according to any one of claims 1 to 3, wherein the joining member includes an inclined surface in which a surface on the vehicle outer side of the side positioned on the upper side in the vertical direction is inclined downward.

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