JP2018008600A - Coupling structure and coupling method between side structure and base frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability of joining an outer plate and a side beam and improve the appearance of a railway vehicle.SOLUTION: In a coupling structure 10 between a side structure and a base frame, the side structure 12 includes an outer plate 14 and a plurality of side posts 16, and the base frame 20 includes a side beam 22 including a channel part 24 and a first flange part 32, and a cross beam 40. In the channel part 24, a cross section orthogonal to an extension direction forms a U shape opening toward the outside of a vehicle. Because flat plates, such as the outer plate 14 and the first flange part 32 of the side beam 22, are joined together and the joining operation is not obstructed by the cross beam 40 or the like, joining workability can be improved. In addition, because the joining is performed in a state in which a lower end position of the outer plate 14 extends to at least a lower end position of the first flange part 32, a step is not formed between the outer plate 14 and the side beam 22, and it is possible to improve the appearance of a railway vehicle.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a coupling structure and a coupling method of a side structure and a base frame constituting a railway vehicle structure.

  The structure for a railway vehicle is configured, for example, by combining left and right side structures, front and rear wife structures, a roof structure, and a frame. Among these couplings, various inventions have been proposed for the coupling structure between the side structure and the underframe (for example, see Patent Documents 1 and 2). FIG. 5 shows an example of a coupling structure between the side structure and the underframe. In the side structure / underframe coupling structure 100 shown in FIG. 5, a plurality of side columns 116 are joined to the outer plate 114 of the side structure 112. Further, the underframe 120 is connected to each side beam 122 by being disposed between a pair of side beams 122 arranged on both sides in the vehicle width direction (left and right direction in FIG. 5B) and these side beams 122. FIG. 5 shows only one side beam 122.

  The side beam 122 extending in the longitudinal direction of the vehicle (in the direction orthogonal to the paper surface of FIG. 5B) has a cross section orthogonal to the extending direction, which is open to the inside of the vehicle (on the right side in FIG. 5B). It has a letter shape. In the example of FIG. 5, a long base 164 having a Z-shaped cross section perpendicular to the extending direction is joined to the outer plate 114 and the side column 116, and the outer plate 114 is sandwiched between the long base 164. The side beams 122 are joined. Further, a gusset plate 160 is joined to each of the side pillars 116 so as to sandwich the long base 164, and a lower end portion of each gusset plate 160 is joined to the upper surface of the side beam 122. In FIG. 5, reference numeral 162 indicates a gusset angle used for coupling the side beam 122 and the lateral beam 140, and reference numeral 166 indicates a side beam reinforcing material that reinforces the side beam 122, and reference numeral 168. Is a spacer.

Japanese Patent No. 4280264 Japanese Patent No. 4724161

  Here, in the coupling structure 100 of the side structure and the underframe shown in FIG. 5, a U-shaped side beam 122 having a cross section opened to the inside of the vehicle with respect to the outer plate 114 to which the long base 164 is joined, It is overlapped and joined from the inside. For this reason, for example, in the side beam 122 at a position where the cross beam 140 or the like is coupled and close to the side beam 122, the joining work is hindered by the cross beam 140 or the like, for example, indirect spot welding cannot be performed without performing direct spot welding. It was necessary to perform welding, and workability was poor. Further, since the side beam 122 is joined at a position protruding downward from the lower end portion of the outer plate 114, the side beam 122 between the side beam 122 of the underframe 120 and the outer plate 114 of the side structure 112 is shown in FIG. ) Was formed as shown by the symbol F, and the appearance of the railway vehicle was impaired.

  This invention is made | formed in view of the said subject, and the place made into the objective is to improve the appearance of a rail vehicle while improving the workability | operativity of joining of an outer plate | board and a side beam.

(Aspect of the Invention)
The following aspects of the present invention exemplify the configuration of the present invention, and will be described separately for easy understanding of various configurations of the present invention. Each section does not limit the technical scope of the present invention, and some of the components of each section are replaced, deleted, or further while referring to the best mode for carrying out the invention. Those to which the above components are added can also be included in the technical scope of the present invention.

  (1) A connecting structure of a side structure and a base frame constituting a structure for a railway vehicle, wherein the side structure is joined to an outer plate and a vehicle inner surface of the outer plate and extends in the vehicle vertical direction. And a plurality of side pillars arranged at intervals in the longitudinal direction of the vehicle, the underframe extending between the longitudinal direction of the vehicle and installed on both sides in the width direction of the vehicle, and between the side beams A lateral beam extending in the vehicle width direction, and the side beam is composed of an upper plate portion, a lower plate portion, and a connecting plate portion that connects the upper plate portion and the lower plate portion. A channel portion having a U-shaped cross section orthogonal to the direction, and a first flange portion extending downward from an end portion of the lower plate portion of the channel portion, the channel portion having a U-shaped cross section. Arranged so as to open to the outside of the vehicle, the lower end position of the outer plate extends at least to the lower end position of the first flange portion of the side beam, Coupling structure of the side structure and the underframe of the vehicle inside surface first flange portion of the side beam is bonded (claim 1).

  In the joint structure of the side structure and the underframe described in this section, the side structure to be joined includes an outer plate and a plurality of side pillars. Similarly, the underframe to be joined includes a side beam and a lateral beam. Contains. The plurality of side pillars extend in the vehicle vertical direction, and are joined to the vehicle inner surface of the outer plate with an interval in the vehicle longitudinal direction. For example, each of the side pillars has a hat-shaped, Z-shaped, U-shaped or the like in a cross section orthogonal to the extending direction. The side beams extend in the vehicle longitudinal direction and are installed on both sides in the vehicle width direction, and the lateral beams extend in the vehicle width direction between such side beams. Further, the side beam includes a channel portion and a first flange portion. The channel portion includes an upper plate portion, a lower plate portion, and a connection plate portion, and a cross section orthogonal to the extending direction has a U shape, and the U shape cross section opens to the outside of the vehicle. It is arranged in the direction. The first flange portion extends downward from the end portion of the lower plate portion of the channel portion. That is, the first flange portion is formed such that the end portion of the lower plate portion extending from the connection plate portion to the vehicle outer side of the channel portion is bent downward with an appropriate bending radius. Accordingly, the first flange portion is disposed at a position on the vehicle outer side with respect to the connection plate portion of the channel portion, with one main surface facing the vehicle outer side. Further, at least most of the lateral beams extending in the vehicle width direction between the side beams are arranged between the channel portions of the side beams in consideration of coupling with the side beams.

  The side structure and the frame structure described in this section for connecting the side structure and the frame having the above-described configuration have a lower end position of the outer plate at least of the first flange portion of the side beam. The first flange portion of the side beam is joined to the vehicle inner surface of the outer plate in a state extending to the lower end position. That is, as described above, since the first flange portion of the side beam has an arrangement in which one main surface faces the vehicle outer side, the main plate faces the vehicle inner surface of the outer plate. And the first flange portion of the side beam are joined. Thereby, since the flat plates called the outer flange and the first flange portion of the side beam are joined to each other, the workability of joining is improved. Furthermore, since the first flange portion of the side beam is formed to extend downward from the lower plate portion of the channel portion, the first plate portion of the outer plate and the side beam is arranged by a horizontal beam arranged between the channel portions of the side beam. The joining operation with the 1 flange portion is not hindered. In addition, the joining between the outer plate and the first flange portion of the side beam is performed in a state where the lower end position of the outer plate extends at least to the lower end position of the first flange portion. The step between the outer plate and the side beam is not formed. As a result, the appearance of the railway vehicle is improved.

  (2) In the above item (1), each of the plurality of side pillars includes a joint portion joined to the outer plate and a vehicle inner plate portion arranged at a position spaced from the joint portion toward the vehicle inner side. The side beam includes a second flange portion extending upward from an end portion of the upper plate portion of the channel portion, and a second flange portion of the side beam is provided on a vehicle inner plate portion of each of the plurality of side columns. A connecting structure of the side structure to which the frame is joined and the underframe (claim 2).

  The side structure and underframe coupling structure described in this section is such that each of the plurality of side columns is disposed at a position where the side pillars are joined to the outer plate, and at positions spaced from the joints toward the inside of the vehicle. It includes a board part. For example, when the side pillar has a hat-like cross section perpendicular to the extending direction, the channel part having a U-shaped cross section perpendicular to the extending direction and two flanges extending to both sides of the channel part Part. In this case, the two flange portions correspond to the joint portion, and the portion corresponding to the middle side of the U-shaped cross section of the channel portion corresponds to the vehicle inner plate portion. The side beam includes a second flange portion extending upward from the end portion of the upper plate portion of the channel portion. That is, the second flange portion is formed such that the end portion side of the upper plate portion extending from the connection plate portion to the vehicle outer side of the channel portion is bent upward with an appropriate bending radius. Accordingly, the second flange portion is disposed at a position on the vehicle outer side with respect to the connection plate portion of the channel portion, with one main surface facing the vehicle outer side.

  In the coupling structure of the side structure and the underframe described in this section, the second flange portion of the side beam is joined to the vehicle inner side plate portion of each of the plurality of side pillars. That is, since the second flange portion of the side beam is arranged such that one main surface faces the outside of the vehicle, the main surface faces the vehicle inner side plate portion of each side column, and each side column and the side beam are arranged. The second flange portion is joined. Thereby, since the side structure and the underframe are joined to the first flange portion of the outer plate and the side beam, and to the second flange portion of the side columns and the side beam, It joins more firmly and the intensity | strength of the junction part of a side structure and a base frame will improve. Furthermore, compared to the conventional structure in which a plurality of side columns and side beams are coupled via a gusset plate, the gusset plate is not necessary, and the number of parts is reduced.

  (3) In the above item (1), each of the plurality of side pillars includes a joint portion joined to the outer plate, and a vehicle inner plate portion arranged at a position spaced from the joint portion toward the vehicle inner side. A gusset plate is joined to the vehicle inner side plate portion of each of the plurality of side pillars, and a lower end portion of each of the gusset plates is joined to an upper surface of the upper plate portion of the channel portion of the side beam. A connecting structure of the side structure and the underframe that are connected (claim 3).

  The joint structure between the side structure and the underframe described in this section is a joint in which each of the plurality of side pillars is joined to the outer plate, similarly to the joint structure between the side structure and the underframe of the above (2). Part and a vehicle inner side plate part arrange | positioned in the position spaced apart from this junction part to the vehicle inner side. And a gusset plate is joined to each vehicle inner side plate part of a plurality of side pillars, and each lower end part of these gusset plates is joined to the upper surface of the upper plate part of the channel part of the side beam. is there. Thus, the side structure and the underframe are joined to the outer plate and the first flange portion of the side beam, and are connected to the channel portions of the side columns and the side beam via the gusset plate. Therefore, it joins more firmly and the intensity | strength of the junction part of a side structure and a base frame improves.

(4) In the above items (1) to (3), the side structure and the underframe in which the bone member is joined to the region of the outer surface of the vehicle inside that is covered with the channel portion of the side beam Bonding structure (Claim 4).
The side structure and underframe coupling structure described in this section is such that the bone member is joined to the area covered by the channel part of the side beam in the state where the side beam is joined on the surface of the outer plate on the vehicle inner side. It is what. In other words, the bone member reinforces the region of the outer plate where the side columns and side beams are not joined, thereby increasing the strength.

(5) In the above section (4), the bone member has a side structure and a frame structure in which a cross section perpendicular to the extending direction is a hat shape, a Z shape, or a U shape.
In the coupling structure of the side structure and the underframe described in this section, the cross section perpendicular to the extending direction of the bone member has any one of a hat shape, a Z shape, and a U shape. . That is, when the cross section is a hat shape, the bone member includes a channel portion having a U-shaped cross section orthogonal to the extending direction, and two flange portions extending to both sides of the channel portion. With such a structure, the two flange portions of the bone member are joined to the vehicle inner surface of the outer plate. When the cross section is Z-shaped, the bottom or top of the bone member is joined to the inner surface of the outer plate and the cross-section is U-shaped. The U-shaped opening side is joined toward the vehicle inner surface of the outer plate. In other words, regardless of the shape of the cross section, the bone member is stably joined to the vehicle inner surface of the outer plate, thereby increasing the strength.

(6) In the above items (4) and (5), the structure in which the bone member is a lateral structure that is a horizontal bone extending in the vehicle longitudinal direction and the frame.
The joint structure between the side structure and the underframe described in this section is a lateral bone extending in the longitudinal direction of the vehicle so that the bone member extends uniformly in the longitudinal direction of the vehicle. The strength of the region covered with the channel portion is increased.

(7) In the above items (4) and (5), the bone member is connected to the side frame and the frame, which are a plurality of vertical bones extending in the vehicle vertical direction and arranged at intervals in the vehicle longitudinal direction. Construction.
The joint structure of the side structure and the underframe described in this section is such that the bone member is a plurality of vertical bones extending in the vehicle vertical direction and arranged at intervals in the vehicle longitudinal direction. In the region covered with the channel portion of the side beam, as many vertical bones as necessary are arranged at intervals as needed, and the strength is efficiently increased.

(8) In the above item (7), a structure in which at least a part of the vertical bones of the plurality of vertical bones is formed by the side pillars and the frame.
In this structure, the side structure and the underframe are coupled to each other, and at least some of the longitudinal bones that reinforce the region of the outer plate that is covered with the channel portion of the side beams are It is configured. That is, the side column that is joined to the vehicle inner surface of the outer plate and extends in the vehicle vertical direction extends to the region of the outer plate that is covered with the channel portion of the side beam. The strength of both the region covered by the channel portion of the side beam and the region above this region is efficiently increased. In addition, the some vertical bone in this case may be comprised only by the side pillar, and may contain the vertical bone different from a side pillar.

  (9) In the above items (1) to (8), the cross beam is formed in a U shape in which a cross section orthogonal to the extending direction is opened to the front side or the rear side of the vehicle, and the upper side portion of the U shape And the lower side portion is arranged so as to protrude outside the vehicle from the middle side portion so as to sandwich the channel portion of the side beam, and the opening side or the opening side of the side beam at the middle side portion of the side beam And the surface of the channel portion of the side beam on the vehicle inner surface of the connecting plate portion are coupled via an L-shaped gusset angle, and the upper and lower sides of the horizontal beam are A coupling structure of a side structure joined to a channel portion of the side beam and a frame (claim 5).

  The joint structure between the side structure and the underframe described in this section is that the cross section of the lateral beam extending in the vehicle width direction between the side beams is open to the front or rear side of the vehicle. It has a letter shape. The upper side and the lower side of the U-shape project outward from the middle side, in other words, the upper side and the lower side are the middle side at both ends of the transverse beam in the vehicle width direction. Than protruding. Here, the middle side portion of the transverse beam having a U-shaped cross section is formed to be slightly larger in the vehicle vertical direction than the connecting plate portion of the channel portion having the same U-shaped cross section. For this reason, the horizontal beam extending between the side beams is arranged so that the protruding portions of the upper side portion and the lower side portion sandwich the channel portion of the side beam. More specifically, the protruding portion of the upper side of the horizontal beam is arranged so as to be close to or in contact with the upper surface of the upper plate portion of the channel portion, and the protruding portion of the lower side portion of the horizontal beam is adjacent to the lower surface of the lower plate portion of the channel portion. Or it arrange | positions so that it may contact. Further, the end portion in the vehicle width direction of the middle side portion of the horizontal beam is disposed close to or in contact with the connection plate portion of the channel portion of the side beam.

  With the configuration as described above, the horizontal beam and the side beam are first connected to the inner side of the horizontal beam on the opening side surface of the horizontal beam, or on the opposite side of the opening, and on the connecting plate portion of the side beam on the vehicle interior side. Are connected to each other through an L-shaped gusset angle. In other words, the middle side portion of the horizontal beam and the connection plate portion of the channel portion of the side beam have a positional relationship that is substantially orthogonal. For this reason, of the L-shaped gusset angles, the plate-like portion corresponding to one straight line of the plate-like portions corresponding to two orthogonal straight lines is joined to the middle side of the horizontal beam and corresponds to the other straight line The part to be joined is joined to the connecting plate part of the channel part of the side beam. Further, the horizontal beam and the side beam are also joined at the upper and lower plate portions of the horizontal beam that protrude so as to sandwich the channel portion of the side beam and the upper and lower plate portions of the channel portion. As a result, the side beam and the cross beam are firmly coupled to each other even though the U-shaped channel portion of the side beam is installed in the direction of opening to the outside of the vehicle unlike the conventional structure. .

  (10) In the above items (2) to (9), a long base extending in the vehicle longitudinal direction is disposed between the outer plate and the plurality of side columns and the side beam, and the outer plate and the side plate A first flange portion of a side beam is joined with the long base sandwiched therebetween, and each of the plurality of side pillars and the second flange portion or the gusset plate are joined with the long base sandwiched therebetween. A structure in which the side structure and the underframe are connected (claim 6).

  In the coupling structure of the side structure and the underframe described in this section, a long base extending in the longitudinal direction of the vehicle is arranged between the side plate and the side columns joined to the outer plate and the outer plate. Is. That is, this long base is, for example, an outer plate bonding plate portion bonded to a vehicle inner surface in a region below the outer plate, and a side column bonding plate bonded to each vehicle inner plate portion of the plurality of side columns. And a step plate portion connecting the outer plate joining plate portion and the side column joining plate portion separated in the vehicle width direction, and a cross section perpendicular to the extending direction forms a Z-shape. Then, the outer plate and the first flange portion of the side beam, and each of the plurality of side columns and the second flange portion of the side beam or the gusset plate are joined with the long base having the above-described configuration interposed therebetween. Is. Thereby, the intensity | strength of the coupling | bond part of an outer plate | board and a side beam is improved further. In addition, as described in the above item (8), when the side pillar extends to the area covered with the channel portion of the side beam on the inner surface of the outer plate, for example, avoid the side pillar. Thus, it is only necessary to provide a notch in the step plate portion or the outer plate joining plate portion of the long base.

  (11) A method of connecting a side structure and a base frame constituting a structure for a railway vehicle, wherein the side structure is joined to an outer plate and a surface on the inner side of the outer plate, and extends in the vehicle vertical direction. And a plurality of side pillars arranged at intervals in the longitudinal direction of the vehicle, the underframe extending between the longitudinal direction of the vehicle and installed on both sides in the width direction of the vehicle, and between the side beams A lateral beam extending in the vehicle width direction, and the side beam is composed of an upper plate portion, a lower plate portion, and a connecting plate portion that connects the upper plate portion and the lower plate portion. A channel portion having a U-shaped cross section orthogonal to the direction, and a first flange portion extending downward from an end portion of the lower plate portion of the channel portion, the channel portion having a U-shaped cross section. Arranged to open to the outside of the vehicle, extending the lower end position of the outer plate to at least the lower end position of the first flange portion of the side beam, The first flange portion coupling method between the side structure and the underframe of joining of the side beam in the vehicle inner side surface of the serial shell (claim 7).

(12) In the above item (11), each of the plurality of side columns includes a joint portion joined to the outer plate and a vehicle inner plate portion arranged at a position spaced from the joint portion toward the vehicle inner side. The side beam includes a second flange portion extending upward from an end portion of the upper plate portion of the channel portion, and a second flange portion of the side beam is provided on a vehicle inner plate portion of each of the plurality of side columns. (Claim 8) A method for joining the side structure and the underframe to join the two.
(13) In the above item (11), each of the plurality of side columns includes a joint portion joined to the outer plate, and a vehicle inner plate portion arranged at a position spaced from the joint portion toward the vehicle inner side. A gusset plate is joined to a vehicle inner side plate portion of each of the plurality of side pillars, and a lower end portion of each gusset plate is joined to an upper surface of the upper plate portion of the channel portion of the side beam. A method of joining the structure and the underframe (claim 9).

(14) In the above paragraphs (11) to (13), the method of joining the side structure and the underframe that joins the bone member to the region of the outer surface of the vehicle inside that is covered with the channel portion of the side beam (Claim 10).
(15) In the above item (14), a side structure using a bone member in which the cross section orthogonal to the extending direction is a hat shape, a Z shape, or a U shape as the bone member. Join method.
(16) In the above paragraphs (14) and (15), a method of joining the side frame and the underframe that join the transverse bone extending in the vehicle longitudinal direction as the bone member.

(17) In the above items (14) and (15), a method of joining the side frame and the underframe that joins a plurality of vertical bones extending in the vehicle vertical direction at intervals in the vehicle longitudinal direction as the bone members.
(18) In the above (17), the method of connecting the side structure and the underframe in which at least a part of the plurality of longitudinal bones is constituted by the side pillars.
(19) In the above items (11) to (18), the cross beam is formed in a U shape in which a cross section perpendicular to the extending direction opens to the front side or the rear side of the vehicle. The upper side portion and the lower side portion are arranged so as to protrude outside the vehicle from the middle side portion and sandwich the channel portion of the side beam, and the opening side of the horizontal beam or the opening on the middle side portion of the side beam A surface opposite to the side and a vehicle inner surface of the connection plate portion of the channel portion of the side beam are coupled via an L-shaped gusset angle, and the upper side portion and the lower side portion of the horizontal beam are connected to each other. A method of connecting a side structure and a frame to be joined to the channel portion of the side beam (claim 11).

(20) In the above items (12) to (19), a long base extending in the vehicle longitudinal direction is disposed between the outer plate and the plurality of side columns and the side beam, and the outer plate and the side plate A side structure in which the first flange portion of the side beam is joined with the long base interposed therebetween, and each of the plurality of side columns and the second flange portion or the gusset plate are joined with the long base interposed therebetween. And a method of joining the frame (claim 12).
Then, the method of connecting the side structure and the frame according to the items (11) to (20) realizes the structure of connecting the side structure and the frame as described in the above items (1) to (10). There are equivalent operations corresponding to the combined structure of the side structure and the underframe in the above items (1) to (10).

  Since the present invention is configured as described above, it is possible to improve the workability of joining the outer plate and the side beams and improve the appearance of the railway vehicle.

The coupling | bonding structure of the side structure and base frame which concerns on embodiment of this invention shows the junction part vicinity of an outer plate | board and a side beam, (a) is an image figure which shows a mode that it looked down diagonally downward from the vehicle inner side (B) is an image cross-sectional view from the direction indicated by symbol A in (a). FIG. 1 shows the vicinity of the joint between the outer plate and the side beam in the form in which a lateral bone is joined as a bone member to the joint structure of the side structure and the underframe of FIG. It is an image figure which shows a mode that it looked down at, and (b) is an image sectional drawing from the direction shown by the code | symbol B of (a). 1 shows the vicinity of the joint portion between the outer plate and the side beam in the form in which the longitudinal bone is joined as a bone member to the joint structure of the side structure and the underframe of FIG. It is an image figure which shows a mode that it looked down at, and (b) is an image sectional drawing from the direction shown with the code | symbol C of (a). 1 shows a vicinity of a joint portion between an outer plate and a side beam in a joint structure between a side structure and a base frame in a form different from FIG. 1 according to an embodiment of the present invention, and (a) is obliquely downward from the vehicle inner side. It is an image figure which shows a mode that it looked down at, and (b) is an image sectional drawing from the direction shown by the code | symbol D of (a). The joint structure of the conventional side structure and underframe is shown in the vicinity of the joint between the outer plate and the side beam, (a) is an image diagram showing a state of looking down obliquely downward from the inside of the vehicle, (b) These are image sectional drawings from the direction shown by the code E of (a).

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. Here, detailed description of the same or corresponding parts as those in the prior art is omitted, and the same or corresponding parts are denoted by the same reference numerals throughout the drawings. In the following description, “joining” members refers to joining members by laser welding, spot welding, arc welding, friction stir welding, adhesive, fastening with rivets and bolts, etc., depending on the situation. It shows that 1 to 4 show the respective members in a state where they are broken for convenience of explanation, but the broken portions shown in these drawings do not indicate the actual divided portions of the respective members.

  The side structure and underframe coupling structure 10 according to the embodiment of the present invention includes a side structure 12 and a base that constitute a railway vehicle structure such as a stainless steel structure, a general steel structure, and a light alloy (aluminum, magnesium, etc.) structure. This is applied to the frame 20. Specifically, as shown in FIG. 1, the side structure 12 and the underframe coupling structure 10 include a side structure 12 having an outer plate 14 and a vehicle inner side of the outer plate 14 (right side in FIG. 1B). And a plurality of (two in the illustrated range) side pillars 16 joined to the surface 14a. The plurality of side columns 16 are arranged at intervals in the longitudinal direction of the vehicle (the direction orthogonal to the paper surface of FIG. 1B), and each extends in the vertical direction of the vehicle. In the example of FIG. The long base 64 extends downward to a position close to the step plate 64c of the long base 64 so as not to interfere with the long base 64. Further, in the example of FIG. 1, each of the side pillars 16 has a hat-like cross section orthogonal to the extending direction, and a joint portion 16 a that is joined to the vehicle inner surface 14 a of the outer plate 14, The vehicle inner side board | plate part 16b arrange | positioned in the position spaced apart from the junction part 16a to the vehicle inner side is included. In addition, the cross-sectional shape orthogonal to the extending direction of the side column 16 is not limited to the hat shape, and may be a U shape, a Z shape, or the like. Further, the outer plate 14 shown in FIG. 1 is a portion mainly corresponding to the waist plate in the outer plate 14 constituting the side structure 12.

  On the other hand, the underframe 20 is disposed on both sides in the vehicle width direction (the left-right direction in FIG. 1B) and extends between the pair of side beams 22 extending in the vehicle longitudinal direction. And a transverse beam 40 extending in the width direction. FIG. 1 shows only one side beam 22 side. The side beam 22 is integrally formed of a channel portion 24, a first flange portion 32, and a second flange portion 34, and a cross section perpendicular to the extending direction forms a hat shape. The channel portion 24 has a U-shaped cross section perpendicular to the extending direction, and the opening side of the U-shaped cross section is arranged to face the vehicle outer side (left side in FIG. 1B). .

  And the channel part 24 connects the upper board part 26 located in the vehicle upper side, the lower board part 28 located in the vehicle lower side, the upper board part 26, and the lower board part 28 in the arrangement | positioning state as mentioned above. And a connecting plate portion 30 to be connected. The first flange portion 32 extends from the end of the lower plate portion 28 of the channel portion 24 to the vehicle lower side, and the second flange portion 34 extends from the end of the upper plate portion 26 of the channel portion 24. It extends to the upper side of the vehicle. Here, the first flange portion 32 is a position in the vehicle width direction between the vehicle inner surface 14 a of the outer plate 14 and the vehicle inner surface of the vehicle inner plate portion 16 b of the side column 16 than the second flange portion 34. A distance corresponding to the difference (that is, the size of the side pillar 16 in the vehicle width direction) is located at a position away from the vehicle. Further, a side beam reinforcing member 66 having a U-shaped cross section slightly larger than the channel portion 24 is joined to the channel portion 24 of the side beam 22 at a position avoiding the cross beam 40 in the example of FIG. Yes.

  As with the channel portion 24 of the side beam 22, the horizontal beam 40 has a U-shaped step surface orthogonal to the extending direction, and the opening side of the U-shaped cross section is directed to the front side or the rear side of the vehicle. In the example of FIG. 1, it is arranged so as to face the front side of the page in FIG. And in such an arrangement state, the cross beam 40 has an upper side portion 42 located on the upper side of the vehicle, a lower side portion 44 located on the lower side of the vehicle, and a middle side portion 46 connecting the upper side portion 42 and the lower side portion 44. It consists of Further, each of the upper side portion 42 and the lower side portion 44 of the lateral beam 40 includes projecting portions 42a and 44a that project to the vehicle outer side (that is, the side beam 22 side) than the end portion of the middle side portion 46 in the vehicle width direction. Yes. Further, the middle side portion 46 of the lateral beam 40 is formed to have a slightly larger width in the vehicle vertical direction than the connection plate portion 30 of the channel portion 24 of the side beam 22. For this reason, the end portion in the vehicle width direction of the horizontal beam 40 is such that the end portion in the vehicle width direction of the middle side portion 46 is close to the connection plate portion 30 of the channel portion 24 of the side beam 22 and the lower side The channel portions 24 of the side beams 22 are arranged in such a manner as to be sandwiched from above and below by the projecting portions 42 a and 44 a of the portion 44.

And the side beam 22 and the cross beam 40 are couple | bonded as follows. That is, the protruding portion 42 a of the upper side portion 42 is joined to the upper surface 26 a of the upper plate portion 26 of the channel portion 24, and the protruding portion 44 a of the lower side portion 44 is joined to the lower surface 28 a of the lower plate portion 28 of the channel portion 24. Yes. Further, the middle side portion 46 of the horizontal beam 40 and the connection plate portion 30 of the channel portion 24 of the side beam 22, which are in a positional relationship substantially orthogonal to each other, are coupled by an L-shaped gusset angle 62. More specifically, one plate-like portion 62 a of the gusset angle 62 is joined to the opening-side surface 46 a of the middle side portion 46, and the other plate-like portion 62 b of the gusset angle 62 is connected to the vehicle inner side of the connection plate portion 30. It is joined to the surface 30a. At this time, one plate-like portion 62 a of the gusset angle 62 may be joined to a surface opposite to the opening-side surface 46 a of the middle side portion 46.
Note that the side beam 22 and the horizontal beam 40 may be coupled together with the side beam reinforcing material 66 interposed therebetween. In other words, in this case, unlike the example of FIG. 1, the side beam reinforcing material 66 is also joined to the connecting portion of the channel portion 24 of the side beam 22 with the horizontal beam 40. Then, the protruding portions 42 a and 44 a of the lateral beam 40 are joined to the upper surface of the upper plate portion and the lower surface of the lower plate portion of the side beam reinforcing member 66 joined to the side beam 22. Further, one plate-like portion 62a of the gusset angle 62 is joined to the opening-side surface 46a (or the opposite surface) of the middle side portion 46, and the other plate-like portion 62b of the gusset angle 62 is joined. The side beam reinforcing member 66 is joined to the inner surface of the vehicle.

  Further, in the example of FIG. 1, the long structure 64 is used in the connection structure 10 between the side structure 12 and the frame 20 to connect the side structure 12 and the frame 20. That is, the long base 64 extends in the longitudinal direction of the vehicle and is interposed between the side structure 12 and the underframe 20. Specifically, the long base 64 includes an outer plate bonding plate portion 64 a bonded to the vehicle inner surface 14 a of the outer plate 14, and a side column bonded to the vehicle inner plate portion 16 b of each of the plurality of side columns 16. It is comprised by the joining board part 64b and the level | step difference board part 64c which connects the outer-plate joining board part 64a and the side-column joining board part 64b. For this reason, the cross section orthogonal to the extending direction of the long base 64 is Z-shaped, and the length of the step plate 64c in the vehicle width direction is substantially the same as the size of the side column 16 in the vehicle width direction. Are equal. Further, in the example of FIG. 1, the long base 64 is joined to the outer plate 14 and the side column 16 in a state where the lower end position of the outer plate joining plate portion 64 a is substantially aligned with the lower end position of the outer plate 14. ing.

  The side structure and underframe coupling structure 10 according to the embodiment of the present invention sandwiches the long base 64 joined to the outer plate 14 and the side columns 16 as described above, and the outer plate 14 and The side column 16 and the side beam 22 are joined. That is, the first flange portion 32 of the side beam 22 is overlapped and joined to the outer plate joining plate portion 64a of the long base 64 from the vehicle inner side, and the vehicle is connected to the side column joining plate portion 64b of the long base 64. The second flange portion 34 of the side beam 22 is overlapped and joined from the inside. At this time, the second flange portion 34 of the side beam 22 extends above the side column joining plate portion 64b of the long base 64, so that it is formed above the upper end position of the side column joining plate portion 64b. A spacer 68 is joined to the gap between the vehicle inner side plate portion 16 b of the side pillar 16 and the second flange portion 34. In the example of FIG. 1, the outer plate 14 and the side beam 22 are joined in a state where the lower end position of the outer plate 14 and the lower end position of the first flange portion 32 of the side beam 22 are substantially aligned. Yes. In addition, the long structure 64 does not need to be used for the coupling | bonding structure 10 of the side structure and base frame which concerns on embodiment of this invention for the coupling | bonding of the side structure 12 and the base frame 20. FIG. In this case, the first flange portion 32 of the side beam 22 is directly joined to the vehicle inner surface 14 a of the outer plate 14, and the side beam 22 is connected to the vehicle inner plate portion 16 b of the side column 16. The second flange portion 34 is directly joined.

  Next, FIGS. 2 and 3 show a form in which the bone member 50 is joined to the joint structure 10 of the side structure and the underframe shown in FIG. That is, the structure 10A for connecting the side structure and the underframe shown in FIG. 2 is formed in the region covered with the channel portion 24 of the side beam 22 on the vehicle inner surface 14a of the outer plate 14 via the long base 64. A transverse bone 52 is joined as the member 50. The horizontal bone 52 extends in the longitudinal direction of the vehicle, and in the example of FIG. 2, like the side column 16, a cross section perpendicular to the extending direction forms a hat shape. That is, the horizontal bone 52 is formed of a channel portion 52a having a U-shaped cross section and two flange portions 52b extending from both sides of the channel portion 52a. The two flange portions 52b are joined to the long base 64. ing.

  On the other hand, the joint structure 10B between the side structure and the underframe shown in FIG. 3 is provided on the vehicle inner surface 14a of the outer plate 14 in a region covered with the channel portion 24 of the side beam 22 via the long base 64. A plurality of longitudinal bones 54 arranged at intervals in the longitudinal direction are joined as a bone member 50. Each of the longitudinal bones 54 extends in the vehicle vertical direction, and in the example of FIG. 3, like the side column 16, a cross section perpendicular to the extending direction forms a hat shape. That is, each longitudinal bone 54 is formed by a channel portion 54a having a U-shaped cross section and two flange portions 54b extending from both sides of the channel portion 54a, and the two flange portions 54b are joined to the long base 64. Has been. In addition, at the angle shown in FIG. 3, only one longitudinal bone 54 can be confirmed, but any number of longitudinal bones can be formed in the region covered by the channel portion 24 of the side beam 22 of the outer plate 14 at an arbitrary interval. 54 is arranged.

The plurality of longitudinal bones 54 may include at least some of the longitudinal bones 54 formed by the side pillars 16. That is, each of the plurality of side pillars 16 joined to the vehicle inner surface 14a of the outer plate 14 is covered with a channel portion 24 of the side beam 22 of the outer plate 14, for example, the vertical direction shown in FIG. What is necessary is just to extend to the position equivalent to the lower end position of the bone 54. FIG. In this case, in order to prevent the long base 64 from interfering with the side pillars 16, the long base 64 is notched so as to avoid the side pillars 16, or the long base 64 is not used.
In addition, the shape of the cross section orthogonal to the extending direction of the bone member 50 (the horizontal bone 52 and the vertical bone 54) is not limited to the hat shape, and may be a U shape, a Z shape, or the like. Good. When the long base 64 is not used, the bone member 50 may be directly joined to the surface 14a of the outer plate 14 on the vehicle inner side.

Next, FIG. 4 shows a coupling structure 10 ′ between the side structure and the underframe in a form different from FIG. 1 according to the embodiment of the present invention. The side structure / base frame connecting structure 10 ′ shown in FIG. 4 is the same as the side structure / base frame connecting structure 10 shown in FIG. The bonding structure with ′ is different. In addition, about the other structure, since the coupling | bonding structure 10 'of the side structure and base frame of FIG. 4 is the same as the joint structure 10 of the side structure and base frame of FIG.
Specifically, the side beam 22 'includes a channel portion 24 having a U-shaped cross section perpendicular to the extending direction, and a first flange portion extending from the end of the lower plate portion 28 of the channel portion 24 to the vehicle lower side. 32 and are configured integrally. The upper plate portion 26 of the channel portion 24 extends in the vehicle outer direction (left direction in FIG. 4B) to a position where it contacts the lower surface of the step plate portion 64c of the long base 64.

  And the coupling | bonding structure 10 'of the side structure and base frame which concerns on embodiment of this invention pinches | interposes the long base 64 joined with respect to the outer plate 14 and the side column 16, and the outer plate 14 and the side column 16 And the side beam 22 'are joined. That is, the first flange portion 32 of the side beam 22 ′ is overlapped and joined to the outer plate joining plate portion 64 a of the long base 64 from the vehicle inner side. In addition, a gusset plate 60 is overlapped and joined to each portion of the side column joining plate portion 64b of the long base 64 joined to the plurality of side columns 16 from the inside of the vehicle. The lower end portion is joined to the upper surface 26 a of the upper plate portion 26 of the channel portion 24. At this time, the gusset plate 60 extends above the side column joining plate portion 64b of the long base 64, so that the vehicle inner side of the side column 16 is formed above the upper end position of the side column joining plate portion 64b. A spacer 68 is joined to the gap between the plate portion 16 b and the gusset plate 60. Further, the long base 64 and the side beam 22 'are between the transition portion from the side column joining plate portion 64b of the long base 64 to the step plate portion 64c and the upper surface 26a of the upper plate portion 26 of the side beam 22'. Are joined so as to fill the gap G therebetween. Alternatively, the vicinity of the vehicle outer end portion of the upper plate portion 26 of the channel portion 24 may be joined to the step plate portion 64c of the long base 64.

  Now, according to the embodiment of the present invention configured as described above, the following operational effects can be obtained. That is, in the joint structure 10 of the side structure and the underframe according to the embodiment of the present invention, as shown in FIG. 1, the side structure 12 to be joined includes an outer plate 14 and a plurality of side columns 16. Similarly, the underframe 20 to be coupled includes side beams 22 and cross beams 40. The plurality of side pillars 16 extend in the vehicle vertical direction, and are spaced on the vehicle inner surface 14a of the outer plate 14 at intervals in the vehicle longitudinal direction (direction perpendicular to the paper surface of FIG. 1B). It is joined. In the example of FIG. 1, each of the side pillars 16 has a hat-like cross section perpendicular to the extending direction.

  Further, the side beams 22 extend in the longitudinal direction of the vehicle and are installed on both sides in the vehicle width direction (left and right direction in FIG. 1B), and the lateral beams 40 are disposed between such side beams 22. It extends in the vehicle width direction. Further, the side beam 22 includes a channel portion 24 and a first flange portion 32. The channel portion 24 includes an upper plate portion 26, a lower plate portion 28, and a connection plate portion 30, and a cross section orthogonal to the extending direction forms a U shape, and the U shape cross section is a vehicle. It arrange | positions in the direction opened to the outer side (left side of FIG.1 (b)). The first flange portion 32 extends downward from the end portion of the lower plate portion 28 of the channel portion 24. That is, the first flange portion 32 is formed such that the end portion side of the lower plate portion 28 extending from the connection plate portion 30 to the vehicle outer side of the channel portion 24 is bent downward with an appropriate bending radius. Thereby, the 1st flange part 32 becomes the arrangement | positioning in which one main surface turned to the vehicle outer side in the position of the vehicle outer side rather than the connection board part 30 of the channel part 24. FIG. In addition, the horizontal beam 40 extending in the vehicle width direction between the side beams 22 is considered to be coupled with the side beams 22, and most of the horizontal beam 40 excluding the protruding portion 42 a of the upper side portion 42 and the protruding portion 44 a of the lower side portion 44. , Between the channel portions 24 of the side beams 22.

  And, in the joint structure 10 of the side structure and the frame according to the embodiment of the present invention, in which the side structure 12 and the frame 20 configured as described above are combined, the lower end position of the outer plate 14 is at least on the side. The first flange portion 32 of the side beam 22 is joined to the vehicle inner surface 14 a of the outer plate 14 in a state of extending to the lower end position of the first flange portion 32 of the beam 22. That is, as described above, the first flange portion 32 of the side beam 22 has an arrangement in which one main surface is directed to the vehicle outer side, and thus the main surface is opposed to the vehicle inner surface 14a of the outer plate 14. Thus, the outer plate 14 and the first flange portion 32 of the side beam 22 are joined. Thereby, since flat plates called the outer flange 14 and the first flange portion 32 of the side beam 22 are joined together, the workability of joining can be improved. Furthermore, since the first flange portion 32 of the side beam 22 is formed to extend downward from the lower plate portion 28 of the channel portion 24, the horizontal beam 40 and the like disposed between the channel portions 24 of the side beam 22, etc. The joining work of the outer plate 14 and the first flange portion 32 of the side beam 22 is not hindered. In addition, the joining between the outer plate 14 and the first flange portion 32 of the side beam 22 is performed in a state where the lower end position of the outer plate 14 extends at least to the lower end position of the first flange portion 32, and thus from the outside of the vehicle. A step between the outer plate 14 and the side beam 22 is not formed at a visually recognized position. Thereby, the appearance of the railway vehicle can be improved.

  The side structure and underframe coupling structure 10 according to the embodiment of the present invention includes a joint portion 16a in which each of the plurality of side pillars 16 is joined to the outer plate 14, and the inside of the vehicle from the joint portion 16a. The vehicle inner side board | plate part 16b arrange | positioned in the position spaced apart to the left is included. When the side column 16 has a hat-like cross section perpendicular to the extending direction as in the example of FIG. 1, a channel part having a U-shaped cross section perpendicular to the extending direction, and a channel part And two flange portions extending to both sides of the head. In this case, the two flange portions correspond to the joint portion 16a, and the portion corresponding to the middle side of the U-shaped cross section of the channel portion corresponds to the vehicle inner plate portion 16b. The side beam 22 includes a second flange portion 34 extending upward from the end portion of the upper plate portion 26 of the channel portion 24. That is, the second flange portion 34 is formed such that the end portion side of the upper plate portion 26 extending from the connection plate portion 30 to the vehicle outer side of the channel portion 24 is bent upward with an appropriate bending radius. Thereby, the 2nd flange part 34 becomes the arrangement | positioning which one main surface turned to the vehicle outer side in the position of the vehicle outer side rather than the connection board part 30 of the channel part 24. FIG.

  In the joint structure 10 of the side structure and the underframe, the second flange portion 34 of the side beam 22 is joined to the vehicle inner side plate portion 16b of each of the plurality of side pillars 16. In other words, the second flange portion 34 of the side beam 22 has an arrangement in which one main surface faces the outside of the vehicle, so that the main surface is opposed to the vehicle inner side plate portion 16b of each side column 16 on each side. The column 16 and the second flange portion 34 of the side beam 22 are joined. Accordingly, the side structure 12 and the frame 20 are joined to the outer flange 14 and the first flange portion 32 of the side beam 22, and to the plurality of side columns 16 and the second flange portion 34 of the side beam 22. Therefore, the strength of the joint portion between the side structure 12 and the underframe 20 can be improved. Furthermore, the gusset plate 160 is not necessary as compared with the conventional structure in which the plurality of side columns 116 and the side beams 122 are coupled via the gusset plate 160 as shown in FIG. Can be reduced.

  Furthermore, as shown in FIG. 1, the coupling structure 10 of the side structure and the underframe according to the embodiment of the present invention includes an extending direction of the lateral beam 40 extending in the vehicle width direction between the side beams 22. An orthogonal cross section forms a U-shape that opens to the front side or the rear side of the vehicle. The U-shaped upper side portion 42 and the lower side portion 44 protrude to the vehicle outer side than the middle side portion 46. In other words, the upper side portion 42 and the lower side at both ends of the cross beam 40 in the vehicle width direction. The part 44 protrudes from the middle side part 46. Here, the middle side portion 46 of the U-shaped cross beam 40 is formed to have a slightly larger width in the vehicle vertical direction than the connection plate portion 30 of the channel portion 24 that is also U-shaped in cross section. For this reason, the horizontal beam 40 extending between the side beams 22 is arranged such that the protruding portions 42 a and 44 a of the upper side portion 42 and the lower side portion 44 sandwich the channel portion 24 of the side beam 22. More specifically, the protruding portion 42a of the upper side portion 42 of the horizontal beam 40 is disposed so as to be close to or in contact with the upper surface 26a of the upper plate portion 26 of the channel portion 24, and the protruding portion 44a of the lower side portion 44 of the horizontal beam 40 is It arrange | positions so that the lower surface 28a of the lower-plate part 28 of the part 24 may adjoin or contact. Furthermore, the end portion in the vehicle width direction of the middle side portion 46 of the horizontal beam 40 is disposed in proximity to or in contact with the connection plate portion 30 of the channel portion 24 of the side beam 22.

  With the above-described configuration, the cross beam 40 and the side beam 22 are firstly connected to the connection plate portion 30 of the opening 46 of the side beam 40 and the channel portion 24 of the side beam 22 in the middle side 46 of the cross beam 40. The vehicle inner surface 30 a is coupled via an L-shaped gusset angle 62. That is, the middle side portion 46 of the horizontal beam 40 and the connection plate portion 30 of the channel portion 24 of the side beam 22 are in a positional relationship that is substantially orthogonal. Therefore, of the L-shaped gusset angle 62, the plate-like portion 62a corresponding to one of the plate-like portions 62a and 62b corresponding to two orthogonal straight lines is joined to the middle side 46 of the cross beam 40. Then, the plate-like portion 62 b corresponding to the other straight line is joined to the connection plate portion 30 of the channel portion 24 of the side beam 22. Further, the horizontal beam 40 and the side beam 22 are formed by projecting portions 42 a and 44 a protruding so as to sandwich the channel portion 24 of the side beam 22 on the upper side portion 42 and the lower side portion 44 of the horizontal beam 40, and the upper plate of the channel portion 24. The part 26 and the lower plate part 28 are also joined. As a result, the channel portion 24 having a U-shaped cross section of the side beam 22 is different from the conventional structure as shown in FIG. 40 can be firmly coupled.

  In addition, as shown in the example of FIG. 1, the coupling structure 10 of the side structure and the base frame according to the embodiment of the present invention includes the outer plate 14, the plurality of side columns 16 joined to the outer plate 14, and the side beams. A long base 64 extending in the longitudinal direction of the vehicle may be disposed between the two. That is, in the example of FIG. 1, the long base 64 is a vehicle inner plate of each of the plurality of side columns 16 and the outer plate bonding plate portion 64 a bonded to the vehicle inner surface 14 a in the region below the outer plate 14. The side column joining plate portion 64b joined to the portion 16b, and the step plate portion 64c connecting the outer plate joining plate portion 64a and the side column joining plate portion 64b separated in the vehicle width direction, and the extending direction An orthogonal cross section forms a Z-shape. And the outer plate 14 and the first flange portion 32 of the side beam 22, and each of the plurality of side columns 16 and the second flange portion 34 of the side beam 22 (the gusset plate 60 in the example of FIG. 4), The long base 64 configured as described above is sandwiched and joined. Thereby, the intensity | strength of the coupling | bond part of the outer plate | board 14 and the side beam 22 can be improved further.

  On the other hand, as shown in FIGS. 2 and 3, the side structures 22A and 10B of the side structure and underframe structure according to the embodiment of the present invention are joined to the side beam 22 of the vehicle inner surface 14a of the outer plate 14. In this state, the bone member 50 is joined to the region covered with the channel portion 24 of the side beam 22. Thereby, the area | region where the side pillar 16 and the side beam 22 of the outer plate 14 are not joined is reinforced by the bone member 50, and intensity | strength can be raised.

  Furthermore, the cross section perpendicular to the extending direction of the bone member 50 has any one of a hat shape, a Z shape, and a U shape. That is, as in the example of FIGS. 2 and 3, when the cross section is a hat shape, the bone member 50 includes channel portions 52 a and 54 a having a U-shaped cross section orthogonal to the extending direction; Two flange portions 52b and 54b extending to both sides of 54a are provided. With such a structure, the two flange portions 52b and 54b of the bone member 50 are joined to the vehicle inner surface 14a of the outer plate 14. Further, when the cross-section of the bone member 50 is Z-shaped, the bottom or top of the Z-shape is joined to the vehicle inner surface 14a of the outer plate 14, and the cross-section is U-shaped. In this case, the U-shaped opening side is joined toward the vehicle inner surface 14 a of the outer plate 14. That is, regardless of the shape of the cross section, the bone member 50 can increase the strength while being stably bonded to the vehicle inner surface 14a of the outer plate 14.

2A and 2B is a lateral bone 52 in which the bone member 50 extends in the longitudinal direction of the vehicle, so that the outer plate 14 is uniformly distributed along the longitudinal direction of the vehicle. The strength of the region covered with the channel portion 24 of the side beam 22 can be increased.
On the other hand, in the joint structure 10B of the side structure and the underframe shown in FIG. 3, the bone member 50 is a plurality of vertical bones 54 extending in the vehicle vertical direction and arranged at intervals in the vehicle longitudinal direction. Thus, since the necessary number of vertical bones 54 can be arranged in the region covered with the channel portion 24 of the side beam 22 of the outer plate 14 at intervals as necessary, the strength can be increased efficiently. Is possible.

  Further, the structure 10B for connecting the side structure and the underframe shown in FIG. 3 includes at least a part of the vertical bones 54 that reinforce the region of the outer plate 14 covered with the channel portion 24 of the side beam 22. The bone 54 may be constituted by the side column 16. That is, the side column 16 joined to the vehicle inner surface 14a of the outer plate 14 and extending in the vehicle vertical direction is extended to a region of the outer plate 14 covered with the channel portion 24 of the side beam 22. Thereby, the strength of both the region covered by the channel portion 24 of the side beam 22 and the region above the region of the outer plate 14 can be efficiently increased by the side pillars 16. In addition, the some vertical bone 54 in this case may be comprised only by the side pillar 16, and may contain the vertical bone 54 different from the side pillar 16. FIG. Moreover, when using the long base 64, what is necessary is just to provide a notch in the level | step difference plate part 64c and the outer-plate joining board part 64a of the long base 64, for example so that the side pillar 16 may be avoided.

  Further, the side structure and base frame connecting structure according to the embodiment of the present invention has a gusset plate on the vehicle inner side plate portion 16b of each of the plurality of side pillars 16, as in the connecting structure 10 'shown in FIG. 60, and the lower ends of the gusset plates 60 may be joined to the upper surface 26a of the upper plate portion 26 of the channel portion 24 of the side beam 22 '. As a result, the side structure 12 and the underframe 20 are joined between the outer plate 14 and the first flange portion 32 of the side beam 22 ′, and between the side columns 16 and the side beams 22 ′ via the gusset plate 60. Coupling with the channel section 24 is performed. For this reason, even if it is such a form, the side structure 12 and the frame 20 are combined more firmly, and the intensity | strength of the coupling | bond part of the side structure 12 and the frame 20 can be improved.

  In the above description, the connection performed on one side in the vehicle width direction out of the connection between the side structure 12 and the frame 20 performed on both sides in the vehicle width direction is mainly described. It will be understood that the coupling performed on the other side in the vehicle width direction is performed in a similar manner, except that the positional relationship is a symmetrical positional relationship in the vehicle width direction.

10, 10A, 10B, 10 ′: side structure and underframe coupling structure, 12: side structure, 14: outer plate, 14a: vehicle inner surface, 16: multiple side columns, 16a: joint, 16b: Vehicle inner plate part, 20: underframe, 22, 22 ': side beam, 24: channel part, 26: upper plate part, 26a: upper surface, 28: lower plate part, 30: connecting plate part, 30a: inside of vehicle Surface, 32: first flange portion, 34: second flange portion, 40: transverse beam, 42: upper side portion, 44: lower side portion, 46: middle side portion, 46a: surface on the opening side, 50: bone member, 60: Gusset plate, 62: Gusset angle, 64: Long base

Claims (12)

A combined structure of a side structure and a base frame constituting a structure for a railway vehicle,
The side structure includes an outer plate, and a plurality of side columns that are joined to the vehicle inner surface of the outer plate, extend in the vehicle vertical direction, and are arranged at intervals in the vehicle longitudinal direction.
The underframe includes a side beam extending in the vehicle longitudinal direction and installed on both sides in the vehicle width direction, and a lateral beam extending in the vehicle width direction between the side beams,
The side beam is formed of an upper plate portion, a lower plate portion, and a connecting plate portion connecting the upper plate portion and the lower plate portion, and a cross section perpendicular to the extending direction has a U shape. A channel portion and a first flange portion extending downward from an end portion of the lower plate portion of the channel portion, and the channel portion is disposed such that a U-shaped cross-section opens to the outside of the vehicle,
The lower end position of the outer plate extends at least to the lower end position of the first flange portion of the side beam, and the first flange portion of the side beam is joined to the vehicle inner surface of the outer plate. Combined structure of side structure and underframe. Each of the plurality of side pillars includes a joint portion joined to the outer plate, and a vehicle inner side plate portion arranged at a position spaced from the joint portion toward the vehicle inner side,
The side beam includes a second flange portion extending upward from an end portion of the upper plate portion of the channel portion,
2. The side structure and underframe coupling structure according to claim 1, wherein a second flange portion of the side beam is joined to a vehicle inner side plate portion of each of the plurality of side pillars. Each of the plurality of side pillars includes a joint portion joined to the outer plate, and a vehicle inner side plate portion arranged at a position spaced from the joint portion toward the vehicle inner side,
A gusset plate is joined to the vehicle inner side plate portion of each of the plurality of side pillars, and a lower end portion of each of the gusset plates is joined to an upper surface of the upper plate portion of the channel portion of the side beam. The combined structure of a side structure and a base frame according to claim 1.   The side structure and the base according to any one of claims 1 to 3, wherein a bone member is joined to a region of the outer surface of the vehicle inside that is covered with a channel portion of the side beam. Combined structure with frame. The transverse beam has a U-shape in which a cross section perpendicular to the extending direction is open to the front side or the rear side of the vehicle, and the upper and lower sides of the U-shape are more outward than the middle side. It is arranged so as to protrude and sandwich the channel part of the side beam,
An opening side of the transverse beam or a surface opposite to the opening side of the lateral side of the transverse beam, and a vehicle inner surface of the connecting plate part of the channel portion of the side beam form an L-shaped gusset angle. The side structure according to any one of claims 1 to 4, wherein the side structure is joined to each other, and an upper side portion and a lower side portion of the horizontal beam are joined to a channel portion of the side beam. Connection structure with underframe.   A long base extending in the longitudinal direction of the vehicle is disposed between the outer plate and the plurality of side pillars and the side beam, and the outer plate and the first flange portion of the side beam are arranged on the long base. 6. Each of the plurality of side pillars and the second flange portion or the gusset plate are sandwiched and joined together while being sandwiched and joined. 6. A combined structure of the side structure and the underframe according to item 1. A method of connecting a side structure and a base frame constituting a railway vehicle structure,
The side structure includes an outer plate, and a plurality of side columns that are joined to the vehicle inner surface of the outer plate, extend in the vehicle vertical direction, and are arranged at intervals in the vehicle longitudinal direction.
The underframe includes a side beam extending in the vehicle longitudinal direction and installed on both sides in the vehicle width direction, and a lateral beam extending in the vehicle width direction between the side beams,
The side beam is formed of an upper plate portion, a lower plate portion, and a connecting plate portion connecting the upper plate portion and the lower plate portion, and a cross section perpendicular to the extending direction has a U shape. A channel portion and a first flange portion extending downward from an end portion of the lower plate portion of the channel portion, and the channel portion is disposed such that a U-shaped cross-section opens to the outside of the vehicle,
The lower end position of the outer plate extends at least to the lower end position of the first flange portion of the side beam, and the first flange portion of the side beam is joined to the vehicle inner surface of the outer plate. How to join the side structure and underframe. Each of the plurality of side pillars includes a joint portion joined to the outer plate, and a vehicle inner side plate portion arranged at a position spaced from the joint portion toward the vehicle inner side,
The side beam includes a second flange portion extending upward from an end portion of the upper plate portion of the channel portion,
8. The method for connecting the side structure and the underframe according to claim 7, wherein a second flange portion of the side beam is joined to a vehicle inner side plate portion of each of the plurality of side pillars. Each of the plurality of side pillars includes a joint portion joined to the outer plate, and a vehicle inner side plate portion arranged at a position spaced from the joint portion toward the vehicle inner side,
A gusset plate is joined to a vehicle inner side plate portion of each of the plurality of side pillars, and a lower end portion of each of the gusset plates is joined to an upper surface of the upper plate portion of the channel portion of the side beam. The method for connecting the side structure and the underframe according to claim 7.   The side structure and the underframe according to any one of claims 7 to 9, wherein a bone member is joined to a region of the surface of the outer plate on the inner side of the vehicle that is covered with the channel portion of the side beam. How to join. The transverse beam has a U-shape in which a cross section perpendicular to the extending direction is open to the front side or the rear side of the vehicle, and the upper and lower sides of the U-shape are arranged on the vehicle outer side than the middle side. Project to the side, and arrange so as to sandwich the channel portion of the side beam,
An L-shaped gusset angle is formed between the opening side of the horizontal beam or the surface opposite to the opening side of the lateral side of the horizontal beam, and the vehicle inner surface of the connecting plate portion of the channel portion of the side beam. The side structure and the underframe according to any one of claims 7 to 10, wherein the side structure and the underframe according to any one of claims 7 to 10, wherein the side structure and the underframe are joined to a channel portion of the side beam. How to join. A long base extending in the vehicle longitudinal direction is disposed between the outer plate and the plurality of side columns and the side beam, and the outer plate and the first flange portion of the side beam are connected to the long base. 12. The structure according to claim 8, wherein each of the plurality of side pillars is joined to the second flange portion or the gusset plate while sandwiching the long base. To join the side structure and underframe.

Images