JP2015048008A - Mounting bracket and rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting bracket that makes working efficiency and costs preferable and that can suppress an increase in weight of a frame.SOLUTION: Mounting brackets 10 and 30 relating to the present invention include a first member 11 that is fixed to undersurfaces of beam members 102 and 103 and that is elongated in a horizontal direction, and a second member 12 that is fixed to side surfaces of the beam members 102 and 103 and that is formed in an L-shape. In a state in which a first support part 14 of the first member 11 and a second support part 19 of the second member 12 overlap each other, underfloor equipment 105 is supported on top surfaces of them.

Description

  The present invention relates to a mounting bracket for mounting an underfloor device on a railcar frame and a railcar including the same.

  Various underfloor equipment is attached to the railcar frame. Conventionally, different mounting brackets have been used for mounting underfloor devices for each device and for each vehicle type. Use of a wide variety of mounting brackets is not preferable in terms of work efficiency and cost. Moreover, when using fasteners, such as a volt | bolt, it is desirable to set it as the structure where the force of a pulling direction is not applied to a fastener, and there exists a country which provides provisions with such a structure.

  On the other hand, Patent Document 1 proposes a structure in which a beam member extending in the vehicle longitudinal direction is provided separately from the side beam at the center of the underframe in the vehicle width direction and the underfloor equipment is supported by these beam member and the side beam. . According to such a configuration, the type and number of mounting brackets can be reduced, and no force in the pulling direction is applied to the fastener that fixes the underfloor device.

US Pat. No. 6,919,428

  However, since the structure described in Patent Document 1 increases the number of beam members extending in the longitudinal direction of the vehicle, there is a problem that the weight of the underframe increases. In particular, the configuration described in Patent Document 1 reduces the number of cross beams as compared with a general underframe, but in this case, it is necessary to increase the strength of the floorboard. Therefore, in the case of using a general floor panel, it is necessary to increase the number of horizontal beams further than the configuration described in Patent Document 1 in order to prevent the floor panel from being bent. There is a problem that the weight of the frame is greatly increased.

  This invention is made | formed in view of such a situation, Comprising: It is preferable in terms of work efficiency and expense, and it aims at providing the attachment metal fitting which can suppress the weight increase of a frame.

  A mounting bracket according to an aspect of the present invention is a mounting bracket for mounting an underfloor device to a railcar frame having a plurality of beam members, and is a first member that is fixed to the lower surface of the beam member and extends in the horizontal direction. And a second member fixed to the side surface of the beam member and formed in an L shape. The 1st member has the 1st fixed part fixed to the undersurface of a beam member, and the 1st support part which protrudes from a beam member. The second member includes a second fixing portion that extends in the vertical direction and is fixed to the side surface of the beam member, and a second support portion that extends in the horizontal direction and is coupled to the first support portion. . And a 1st support part and a 2nd support part support an underfloor apparatus by those upper surfaces in the state which overlapped.

  This mounting bracket can be used for different underfloor equipment and vehicle types. Therefore, it is preferable in terms of work efficiency and cost. Moreover, since it is not necessary to increase a beam member etc. to a frame, the weight increase of a frame can be suppressed.

  As described above, the mounting bracket is preferable in terms of work efficiency and cost, and can suppress an increase in weight of the underframe.

FIG. 1 is a perspective view of a side beam mounting bracket. FIG. 2 is a perspective view of the side beam mounting bracket fixed to the side beam. FIG. 3 is a perspective view of a state in which the horizontal beam mounting bracket is fixed to the horizontal beam. FIG. 4 is a schematic plan view of the underframe with the underfloor device attached. FIG. 5 is a schematic cross-sectional view of the underframe with the underfloor device attached.

  Hereinafter, an embodiment of the mounting bracket will be described with reference to the drawings. Below, the same code | symbol is attached | subjected to the element which is the same or it corresponds through all the drawings, and the overlapping description is abbreviate | omitted.

<Configuration of mounting bracket>
The mounting bracket according to the present embodiment is for mounting the underfloor equipment 105 to the underframe 101 of the railway vehicle 100 (see FIG. 4), and there are two types, the side beam mounting bracket 10 and the cross beam mounting bracket 30. . First, the configuration of the side beam mounting bracket 10 will be described. The side beam mounting bracket 10 is a mounting bracket fixed to the side beam 102. FIG. 1 is a perspective view of the side beam mounting bracket 10, and FIG. 2 is a perspective view of the side beam mounting bracket 10 fixed to the side beam 102. In addition, in FIG.1 and FIG.2, a fixture etc. are abbreviate | omitted. As shown in FIG. 1, the side beam mounting bracket 10 is mainly composed of a first member 11 and a second member 12.

  The 1st member 11 is a member fixed to the lower surface of the side beam 102 (refer FIG. 2). The first member 11 extends in the horizontal direction as a whole, and includes a first fixing portion 13 that is fixed to the lower surface of the side beam 102 and a first support portion 14 that protrudes from the side beam 102. Among these, a plurality of fixing holes 15 are formed in the first fixing portion 13. The first fixing portion 13 is fixed to the lower surface of the side beam 102 by a fixing rivet 50 (see FIG. 5) that passes through the fixing hole 15. On the other hand, the 1st support part 14 has the fastening hole 16 for inserting the fastening bolt 51 (refer FIG. 5) which attaches the underfloor apparatus 105 in the center. A plurality of coupling holes 17 are formed on both sides in the width direction of the first support portion 14. Moreover, the 1st member 11 consists of board | plate materials, and is formed in the cross-sectional C-shape which opens below. By forming the first member 11 with a C-shaped cross section, the rigidity of the first member 11 can be increased.

  The second member 12 is a member fixed to the side surface of the side beam 102 (see FIG. 2). The second member 12 has a second fixing portion 18 extending in the vertical direction and a second support portion 19 extending in the horizontal direction, and is formed in an L shape in a side view. A plurality of fixing holes 20 are formed in the second fixing portion 18. The second fixing portion 18 is fixed to the side surface of the side beam 102 by a fixing rivet 53 (see FIG. 5) that passes through the fixing hole 20. On the other hand, the 2nd support part 19 has the fastening hole 21 for inserting the fastening bolt 51 (refer FIG. 5) which attaches the underfloor apparatus 105 in the center. A plurality of coupling holes 22 are formed on both sides of the second support portion 19 in the width direction. Moreover, the 2nd member 12 consists of board | plate materials, and the convex part 23 is formed so that the center part of the 2nd support part 19 may protrude upward (separate | separate with respect to the 1st member 11). The convex portion 23 is also formed continuously in the central portion of the second fixing portion 18 except for the periphery of the fixing hole 20. By forming the second member 12 in this way, the rigidity of the second member 12 can be increased.

  Further, the coupling hole 17 and the coupling hole 22 have the same center in plan view. And the 1st support part 14 and the 2nd support part 19 are couple | bonded in the state piled up and down by the coupling rivet 52 (refer FIG. 5) which penetrates these coupling holes 17 and 22. FIG. The first support part 14 and the second support part 19 combined in this way support the underfloor equipment 105 (see FIG. 5) on their upper surfaces. In addition, the 1st support part 14 and the 2nd support part 19 are substantially the same shape and the same magnitude | size in planar view, and the fastening holes 16 and 21 also correspond in the center.

  Next, the configuration of the horizontal beam mounting bracket 30 will be described. The horizontal beam mounting bracket 30 is a mounting bracket fixed to the horizontal beam 103. FIG. 3 is a perspective view of a state in which the horizontal beam mounting bracket 30 is fixed to the horizontal beam 103. As shown in FIG. 3, the horizontal beam mounting bracket 30 has the same basic configuration as the side beam mounting bracket 10 described above, but is partially different in size from the side beam mounting bracket 10. Specifically, the protruding dimension of the horizontal beam mounting bracket 30, that is, the dimension from the proximal end to the distal end of the second support portion 19 and the longitudinal dimension of the first support portion 14 are compared with those of the side beam mounting bracket 10. Big. The reason why the protruding dimension of the horizontal beam mounting bracket 30 is increased in this way is to support the underfloor equipment 105 in a well-balanced manner, as will be described later.

  The vertical dimension of the second fixed portion 18 of the horizontal beam mounting bracket 30 is larger than that of the side beam mounting bracket 10. This is because, as described above, the moment applied to the second support portion 19 becomes large even if the load received from the underfloor device 105 (see FIG. 5) is the same as the protruding dimension of the horizontal beam mounting bracket 30 is increased. Because. That is, in the horizontal beam mounting bracket 30, the vertical dimension of the second fixing portion 18 is increased to increase the number of fixing holes 20 so as to withstand a large moment, thereby increasing the number of fixing rivets 53 (see FIG. 5). ), The second fixing portion 18 can be fixed to the cross beam 103.

<Arrangement of mounting bracket>
Next, the arrangement of the mounting brackets 10 and 30 will be described. FIG. 4 is a schematic plan view of the underframe 101 with the underfloor device 105 attached. In FIG. 4, the vertical direction on the paper is the vehicle longitudinal direction, and the horizontal direction on the paper is the vehicle width direction. First, the frame 101 of the railway vehicle 100 will be briefly described. The underframe 101 is a portion corresponding to the floor of the vehicle body, and is formed of several beam members. In FIG. 4, among the beam members constituting the frame 101, the side beam 102 and the horizontal beam 103 are illustrated. The side beams 102 are beam members positioned at both ends in the vehicle width direction and extending in the vehicle longitudinal direction. The side beam 102 of the present embodiment has a rectangular frame shape in cross section. Moreover, the cross beam 103 is a beam member extending in the vehicle width direction, and a plurality of the horizontal beams 103 are arranged at predetermined intervals in the vehicle longitudinal direction. Note that the cross beam 103 of this embodiment is formed in a C-shaped cross section (the cross beam is open above the plane of FIG. 4).

  Various types of underfloor equipment 105 of a large and small size are attached to the above-described underframe 101. Here, as shown in FIG. 4, as shown in FIG. A case where the device 105 (for example, an inverter device or a device box) is attached will be described. In order to attach such an underfloor device 105 to the underframe 101, the transverse beam mounting bracket 30 is fixed to the plurality of transverse beams 103. Here, the horizontal beam mounting bracket 30 is fixed to the four horizontal beams 103 in accordance with the size of the underfloor device 105 in the longitudinal direction of the vehicle. In addition, the position in the vehicle width direction of the horizontal beam mounting bracket 30 is determined according to the vehicle width direction dimension of the underfloor device 105. That is, the position in the vehicle width direction of the horizontal beam mounting bracket 30 can be set arbitrarily. The second member 12 of the horizontal beam mounting bracket 30 is fixed to the side surface of the horizontal beam 103. Since the horizontal beam 103 is formed in a C-shaped cross section, the side surface opposite to the opening (web side; paper surface of FIG. 4) The second member 12 of the horizontal beam mounting bracket 30 is fixed to the lower side.

  On the other hand, the same number of side beam mounting brackets 10 fixed to the side beams 102 are arranged as the side beam mounting brackets 30. At this time, the side beam mounting bracket 10 is arranged so that the horizontal beam mounting bracket 30 and the vehicle longitudinal direction position coincide. Strictly speaking, the side beam mounting bracket 10 is arranged such that the fastening holes 16 and 21 coincide with those of the horizontal beam mounting bracket 30 at the vehicle longitudinal direction position. By arranging in this way, the underfloor equipment 105 can be supported in a balanced manner by the side beam mounting bracket 10 and the side beam mounting bracket 30. The second member 12 of the side beam mounting bracket 10 is fixed to the side surface of the side beam 102 on the inner side in the vehicle width direction.

  Here, as shown in FIG. 4, the side beam 102 of this embodiment is provided with a gusset 104 for connecting the horizontal beam 103 (see also FIG. 2). Therefore, the side beam mounting bracket 10 must be arranged at a certain distance in the vehicle longitudinal direction from the lateral beam 103 so as not to interfere with the gusset 104. In such a case, if the protruding dimension of the horizontal beam mounting bracket 30 is small, the side beam mounting bracket 10 and the horizontal beam mounting bracket 30 cannot be aligned in the longitudinal direction of the vehicle. Therefore, in the present embodiment, by increasing the protruding dimension of the horizontal beam mounting bracket 30, the side beam mounting bracket 10 and the horizontal beam mounting bracket 30 are aligned in the vehicle width direction.

  As described above, in the present embodiment, the side beam mounting bracket 10 and the side beam mounting bracket 30 have different projection dimensions and the like, but the side beam mounting bracket 10 and the side beam mounting bracket 30 may be exactly the same. For example, when the vehicle longitudinal direction positions of the side beam mounting bracket 10 and the side beam mounting bracket 30 do not have to coincide with each other, the same mounting brackets 10 and 30 can be used. For example, in this embodiment, if the same thing as the side beam mounting bracket 30 is used as the side beam mounting bracket 10 as it is, both the mounting brackets 10 and 30 are the same.

  In the above description, the case where the underfloor device 105 is mounted using both the side beam mounting bracket 10 and the cross beam mounting bracket 30 has been described. However, the underfloor device 105 may be mounted using only the cross beam mounting bracket 30. The underfloor device 105 may be attached only with the beam mounting bracket 10. For example, when an underfloor device 105 having dimensions over the entire vehicle width direction of the underframe 101 is attached to the underframe, the side beam mounting brackets 10 are fixed to the side beams 102 on both sides, and these side beam mounting brackets 10 are used to fix the underfloor. The device 105 may be supported.

  Since the mounting brackets 10 and 30 according to the present embodiment can be arranged as described above, the setting of the support position of the underfloor device 105 is relatively free. For example, in the invention described in Patent Document 1 described above, the support position of the underfloor device can be freely set in the vehicle longitudinal direction, but the support position in the vehicle width direction has no room for selection. On the other hand, according to this embodiment, in the vehicle longitudinal direction, the mounting brackets 10 and 30 can be fixed to the interval unit in which the cross beam 103 is arranged, and in the vehicle width direction, the mounting bracket 30 is at an arbitrary position. Can be fixed.

<Installation method of underfloor equipment>
Then, the attachment method of the underfloor apparatus 105 is demonstrated. FIG. 5 is a schematic cross-sectional view of the underframe 101 with the underfloor device 105 attached. In FIG. 5, the left-right direction on the paper is the vehicle width direction. As shown in FIG. 5, the underfloor device 105 has mounting arms 106 extending from the upper surface near both ends in the vehicle width direction. The mounting arm 106 has an L-shaped cross section, and includes a vertical portion 108 extending in the vertical direction from the upper surface of the underfloor device main body 107 and a horizontal portion 109 extending in the horizontal direction from the vertical portion 108. Among these, a fastening hole 110 is formed in the horizontal portion 109. The horizontal portion 109 of each mounting arm 106 is placed on the upper surface of the second member 12 of the side beam mounting bracket 10 and the upper surface of the second member 12 of the lateral beam mounting bracket 30. In this state, the fastening bolt 51 is passed through the fastening hole 110 of the mounting arm 106, the fastening hole 21 of the second member 12, and the fastening hole 16 of the first member 11 in this order from above. Then, the fastening nut 54 attached from the lower end of the fastening bolt 51 is tightened. As a result, the underfloor device 105 is attached to the underframe 101 via the side beam mounting bracket 10 and the cross beam mounting bracket 30. In this embodiment, the mounting arm 106 has an L-shaped cross section, but may have a Z-shaped cross section having a horizontal portion 109, and the shape is not limited thereto.

  In this embodiment, since the underfloor device 105 is attached by the above-described method, the load of the underfloor device 105 is applied to the upper surface side of each mounting bracket 10, 30, and no load in the pulling direction is applied to the fastening bolt 51. Therefore, the fastening bolt 51 is not easily damaged, and even if the fastening bolt 51 is damaged or the fastening nut 54 is loosened and dropped, the underfloor device 105 is supported by the mounting brackets 10 and 30 and cannot drop off immediately. Absent. As described above, the second support part 19 of the mounting brackets 10 and 30 is formed in a convex shape (because it has the convex part 23), and therefore the second support part 19 and the first support part 14 are provided. There is a gap between the two. Therefore, the size of the fastening hole 16 of the first support portion 14 may be larger than the diameter of the fastening nut 54 so that the fastening nut 54 is in direct contact with the second support portion 19. As a result, the first support portion 14 can be prevented from being deformed by the fastening force of the fastening bolt 51 and the fastening nut 54 or the like. Alternatively, a spacer or the like is inserted between the second support part 19 and the first support part 14, and the load received by the first support part 14 and the second support part 19 from the underfloor device 105 or the fastening bolt 51 and the fastening nut 54 are tightened. It may not be deformed by force or the like.

<Effects>
As described above, the mounting brackets 10 and 30 according to the present embodiment are for mounting the underfloor equipment 105 to the frame 101 of the railway vehicle 100 having the plurality of beam members 102 and 103. The mounting brackets 10 and 30 are fixed to the lower surface of the beam members 102 and 103 and extend in the horizontal direction, and the second member 12 is fixed to the side surface of the beam member 102 and formed in an L shape. It is equipped with. The first member 11 includes a first fixing portion 13 that is fixed to the lower surfaces of the beam members 102 and 103, and a first support portion 14 that protrudes from the beam members 102 and 103. The second member 12 includes a second fixing portion 18 that extends in the vertical direction and is fixed to the side surfaces of the beam members 102 and 103, and a second support portion 19 that extends in the horizontal direction and is coupled to the first support portion 14. And have. And the 1st support part 14 and the 2nd support part 19 support the underfloor apparatus 105 in those upper surfaces in the state which overlapped.

  Since the mounting brackets 10 and 30 according to the present embodiment are configured as described above, they can be used for different underfloor equipment and vehicle types. Therefore, it is preferable in terms of work efficiency and cost. Further, since there is no need to increase the beam member or the like on the underframe 101, an increase in the weight of the underframe 101 can be suppressed. Furthermore, the setting of the support position of the underfloor device 105 is relatively free.

  In the present embodiment, the second member 12 is made of a plate material, and the central portion of the second support portion 19 has a convex portion 23 that is separated from the first member 11. Therefore, the second member 12 can be easily manufactured by press drawing or the like, and high rigidity can be ensured.

  In the present embodiment, the second fixing portion 18 of the second member 12 further includes a fixing hole 20 for fixing to the side surfaces of the beam members 102 and 103, and the convex portion 23 extends around the fixing hole 20. Except for this, the second fixing portion 18 is continuously formed. Therefore, the second member 12 can ensure higher rigidity without losing the function of the fixing hole 20.

  Moreover, in this embodiment, the 1st member 11 consists of board | plate materials, and is formed in the cross-sectional C character shape opened below. Therefore, the 1st member 11 can also be easily manufactured with a press brake etc., and high rigidity can be secured.

  In addition, the railway vehicle 100 according to the present embodiment includes a frame 101 having a plurality of beam members 102 and 103, and a plurality of mounting brackets 10 and 30 for attaching the underfloor device 105 to the frame 101. . The mounting brackets 10 and 30 are fixed to the lower surfaces of the beam members 102 and 103, fixed to the first member 11 extending in the horizontal direction, and the side surfaces of the beam members 102 and 103, and formed in an L shape. A second member 12. The first member 11 includes a first fixing portion 13 that is fixed to the lower surfaces of the beam members 102 and 103, and a first support portion 14 that protrudes from the beam members 102 and 103. The second member 12 includes a second fixing portion 18 that extends in the vertical direction and is fixed to the side surfaces of the beam members 102 and 103, and a second support portion 19 that extends in the horizontal direction and is coupled to the first support portion 14. And have. And the 1st support part 14 and the 2nd support part 19 support the underfloor apparatus 105 in those upper surfaces in the state which overlapped.

  Since the railway vehicle 100 according to the present embodiment is configured as described above, the mounting brackets 10 and 30 used to attach the underfloor device 105 to the underframe 101 can be used for different underfloor devices 105. Therefore, it is preferable in terms of work efficiency and cost. Further, since there is no need to increase the beam member or the like on the underframe 101, an increase in the weight of the underframe 101 can be suppressed.

  In the present embodiment, the beam member to which the mounting brackets 10 and 30 are fixed is the side beam 102, the lateral beam 103, or both. As described above, the mounting brackets 10 and 30 can be fixed to both the side beam 102 and the horizontal beam 103 as well as the side beam 102 or the horizontal beam 103, so that the position for supporting the underfloor device 105 can be set relatively freely. It becomes.

  In the present embodiment, the underfloor device 105 has one end in the vehicle width direction fixed to the cross beam 103 of the frame 101 by the mounting bracket 30 and the other end fixed to the side beam 102 of the frame 101 by the mounting bracket 10. The mounting bracket 10 fixed to the side beam 102 and the mounting bracket 30 fixed to the lateral beam 103 are arranged so that their positions in the vehicle longitudinal direction coincide. Therefore, the underfloor equipment 105 can be supported in a balanced manner by the mounting brackets 10 and 30.

  The underfloor device 105 has dimensions over substantially the entire vehicle width direction of the underframe 101, and the mounting brackets 10 for attaching the underfloor device 105 to the underframe 101 are each of the side beams 102 positioned at both ends in the vehicle width direction. It may be fixed to. Thereby, the underfloor equipment 105 with a large dimension can also be attached to the underframe 101 using the mounting bracket 10 described above.

  In the present embodiment, the underfloor device 105 further includes a mounting arm 106 including a horizontal portion 109, and the horizontal portion 109 is provided on the upper surface of the second member 12 of the mounting brackets 10 and 30. Therefore, even if the fastening bolt 51 is damaged or the fastening nut 54 is loosened and dropped, the underfloor device 105 is supported by the mounting brackets 10 and 30 and does not fall off immediately.

  In the present embodiment, the first member 11 and the second member 12 are coupled by the coupling rivet 52. Therefore, the structure of the mounting brackets 10 and 30 can be simplified, and the first member 11 and the second member 12 can be easily combined. The first member 11 and the second member 12 are not limited to rivets, and may be coupled by various mechanical fastening means such as bolts / nuts and pins. Further, the first member 11 and the second member 12 may be coupled by welding such as spot welding or arc welding without providing the coupling holes 17 and 22.

  As described above, the embodiments according to the present invention have been described with reference to the drawings. However, the specific configuration is not limited to these embodiments, and there are design changes and the like without departing from the gist of the present invention. Are also included in the present invention.

  The mounting bracket according to the present invention is preferable in terms of work efficiency and cost, and can suppress an increase in weight of the underframe. Therefore, it is useful in the technical field of railway vehicles.

10 side beam mounting bracket 11 first member 12 second member 13 first fixing portion 14 first support portion 18 second fixing portion 19 second support portion 23 convex portion 30 horizontal beam mounting bracket 51 fastening bolt 52 coupling rivet 54 fastening Nut 100 Railcar 101 Underframe 102 Side beam 103 Horizontal beam 105 Underfloor equipment

Claims (10)

A mounting bracket for attaching an underfloor device to a railcar frame having a plurality of beam members,
A first member fixed to the lower surface of the beam member and extending in a horizontal direction;
A second member fixed to the side surface of the beam member and formed in an L shape,
The first member has a first fixing portion fixed to a lower surface of the beam member, and a first support portion protruding from the beam member,
The second member includes a second fixing portion that extends in a vertical direction and is fixed to a side surface of the beam member, and a second support portion that extends in a horizontal direction and is coupled to the first support portion.
The first support part and the second support part are mounting brackets that support the underfloor equipment on their upper surfaces in a state where they overlap each other.   The mounting bracket according to claim 1, wherein the second member is made of a plate material, and a central portion of the second support portion has a convex portion that is separated from the first member. The second fixing portion of the second member further has a fixing hole for fixing to a side surface of the beam member,
The mounting bracket according to claim 2, wherein the convex portion is formed continuously to the second fixing portion except for the periphery of the fixing hole.   The mounting bracket according to any one of claims 1 to 3, wherein the first member is made of a plate material and is formed in a C-shaped cross section that opens downward. A underframe having a plurality of beam members;
A railcar comprising a plurality of mounting brackets for mounting underfloor equipment to the underframe,
The mounting bracket is
A first member fixed to the lower surface of the beam member and extending in a horizontal direction;
A second member fixed to the side surface of the beam member and formed in an L shape,
The first member has a first fixing portion fixed to a lower surface of the beam member, and a first support portion protruding from the beam member,
The second member includes a second fixing portion that extends in a vertical direction and is fixed to a side surface of the beam member, and a second support portion that extends in a horizontal direction and is coupled to the first support portion.
The first support portion and the second support portion are railcars that support the underfloor equipment on their upper surfaces in a state of overlapping.   The railway vehicle according to claim 5, wherein the beam member to which the mounting bracket is fixed is a side beam, a lateral beam, or both. The underfloor device has one end in the vehicle width direction fixed to the lateral beam of the underframe by the mounting bracket, and the other end is fixed to the side beam of the underframe by the mounting bracket.
The railway vehicle according to claim 5 or 6, wherein the mounting bracket fixed to the side beam and the mounting bracket fixed to the lateral beam coincide with each other in the longitudinal direction of the vehicle. The underfloor device has dimensions over substantially the entire vehicle width direction of the underframe,
The railcar according to any one of claims 5 to 7, wherein mounting brackets for mounting the underfloor device to the underframe are fixed to side beams located at both ends in the vehicle width direction. The underfloor device further includes a mounting arm including a horizontal portion,
The railway vehicle according to any one of claims 5 to 8, wherein the horizontal portion is provided on an upper surface of the second member of the mounting bracket.   The railway vehicle according to any one of claims 5 to 9, wherein the first member and the second member are coupled by mechanical fastening means.

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