JP5209665B2 - Railway vehicle - Google Patents

Description

  The present invention relates to a railway vehicle, and more particularly, to a railway vehicle that can protect a passenger cabin from an impact at the time of collision or derailment overturning.

  The railway car body has a side structure and a wife structure joined to the four sides of the underframe, a roof structure is joined to the top of the side structure and the wife structure, and an outer plate, a floor panel, an interior material, a door, It is formed with a window. In conventional railcars, the cabin is protected by reinforcing the wife structure and underframe portion or providing an impact absorbing member as a countermeasure against collision (see, for example, Patent Document 1).

JP 2001-48016 A

  However, when a large external force is applied due to a collision or the like, the wife structure may be greatly deformed or damaged, and the cabin may not be sufficiently protected.

  Accordingly, an object of the present invention is to provide a railway vehicle having a structure that can sufficiently protect a passenger room even when a large external force is applied to the wife structure.

  In order to achieve the above object, the railway vehicle according to the present invention is a railway vehicle in which a car frame is formed by joining a frame, a side structure, a wife structure, and a roof structure. A structure is provided, and the wife structure includes a wife column provided at a central portion in the width direction, a pair of corner columns provided at both ends in the width direction, and an upper reinforcing beam provided at an upper portion of the wife structure. The lower end of the end post and the corner post is joined to the end beam of the underframe, the upper end of the end post and the corner post is joined to the upper reinforcing beam, and the crushable zone includes the underframe. A slide center beam projecting horizontally from the center of the end beam toward the pillow beam provided on the underframe and a guide center beam projecting horizontally from the pillow beam toward the vehicle end Provided slidable in the front-rear direction and both ends of the upper reinforcing beam It is characterized in that the obtained guide frame provided on the slide bar and the side structure upper projecting horizontally along the side structure upper part slidable in the longitudinal direction of the vehicle from.

Furthermore, the railway vehicle of the present invention connects the slide middle beam and the guide middle beam with a lower fuse member, connects the slide bar and the guide frame with an upper fuse member, and increases the strength of each fuse member. It is preferable to set the strength so that the slide inner beam and the slide bar can be slid by breaking when a load exceeding a preset load is applied to the wife structure, and the slide inner beam and the pillow. It is preferable to provide an impact absorbing member between the beam.

  According to the railway vehicle of the present invention, even when an external force is applied to the wife structure from various directions such as the front direction, the diagonal direction, or a part thereof, the end beam of the underframe and the upper reinforcing beam are connected to the wife column and the corner column. It is possible to receive external force in the whole wife structure that is firmly framed by connecting with each other. Furthermore, the lower structure and the upper structure can move the wife structure in parallel toward the rear of the vehicle body, thereby suppressing damage to the cabin. In addition, it is possible to maintain the predetermined strength of the wife structure by providing a fuse member, and effectively absorb the external force acting on the wife structure by providing an impact absorbing member between the middle beam of the slide and the pillow beam. can do.

It is a side view of the structure for vehicles showing an example of the present invention. It is II-II sectional drawing of FIG. It is principal part explanatory drawing which shows the joining state of a side pillar and a base frame. It is IV-IV sectional drawing of FIG. It is a front view of the structure for vehicles similarly. It is VI-VI sectional drawing of FIG. It is VII-VII sectional drawing of FIG. It is VIII-VIII sectional drawing of FIG. It is explanatory drawing which shows the assembly | attachment state of the end pillar and corner pillar, and a column reinforcement member. It is a front view of a frame similarly. It is XI-XI sectional drawing of FIG. It is XII-XII sectional drawing of FIG. It is a principal part side view of the structure for vehicles. It is XIV-XIV sectional drawing of FIG. It is XV-XV sectional drawing of FIG. It is XVI-XVI sectional drawing of FIG. It is principal part sectional drawing of a lower slide part. It is a perspective view of an impact-absorbing member. It is a side view of a railway vehicle. It is a front view of a railway vehicle.

  The vehicle body 11 of the railway vehicle shown in this embodiment includes a frame 20, a pair of left and right side structures 30 provided on both sides in the longitudinal direction of the frame 20, and a crushable zone 40 at the end of the vehicle body 11. And the roof structure 60 provided so as to cover the side structure 30 and the upper part of the wife structure 50. An entrance / exit 13 having a passenger door 12 is provided at both front and rear end portions of the vehicle body 11, and a cabin 14 is provided between the entrance / exit 13 at both ends. A plurality of side windows 15 are provided on the side wall of the guest room 14, and interior materials and seats are provided in the guest room 14.

  The underframe 20 includes a pair of left and right side beams 21 arranged in the rail direction, a reinforcing middle beam 23 and a horizontal beam 24, and a pair of front and rear pillows arranged in the sleeper direction at both front and rear ends of the middle beam 23. And a beam 22. A cart provided with wheels 16 is provided at the lower part of the pillow beam 22, and a floor plate 17 is provided at the upper part of the underframe 20. The side beam 21 is a member having a Z-shaped cross section, and has a protruding piece 21a that protrudes in the horizontal direction from the lower end of the side beam 21 toward the outside of the vehicle body.

  The side structure 30 includes a plurality of side pillars 31 in the vertical direction, a plurality of bone members 32 in the front-rear direction of the vehicle body, a door frame portion 33 in which the passenger door 12 is provided, and a window frame portion 34 in which the side window 15 is provided. A waist plate 35 disposed in the lower portion of the side window 15, a curtain plate 36 disposed in the upper portion of the side window 15, and a door pocket portion 37 provided on the cabin side of the door frame portion 33. The lower end of the side column 31 is joined to the upper surface portion of the protruding piece 21a provided on the side beam 21 via the long base 25, and the outer surface portion 21b of the side beam 21 and the lower inner surface of the side column 31 are connected to each other. It is joined.

  The roof structure 60 includes a pair of long girders 61 arranged on both sides in the rail direction, a plurality of rafters 62 in the direction of sleepers joined perpendicularly to the long girders 61, and a roof joined to the outside of the rafters 62. The long girder 61 has both ends joined to the upper part of the end structure 50, and both ends of the rafter 62 are joined to the upper end of the side structure 30 through the long girder 61. The roof plate 63 has a curved surface that gently protrudes upward, and a device such as a horn 64 is provided on the roof as necessary.

  The wife structure 50 includes a door opening frame 51 of the through door 18 provided at the center in the width direction, and a window opening frame of a front window (wife window) 19 provided on the left and right sides of the through door 18, respectively. 52. Between the door opening frame portion 51 and the window opening frame portion 52, a pair of wife pillars (center collision pillars) 53 are provided, respectively, and the outside of the window opening frame portion 52 serving as both ends of the wife structure width direction. Are provided with a pair of corner columns (end collision columns) 54 respectively. A reinforcing member 52 a for improving the rigidity of the side portion of the end face window 19 is provided at the middle portion in the vertical direction of the corner post 54. The lower part of the wife structure 50 is integrally formed by being firmly joined to the end beams 26 arranged at the front and rear ends of the underframe 20 via the wife column reinforcing member 57 and the corner column reinforcing member 58. Further, an upper reinforcing beam 56 is provided on the upper part of the wife structure 50 in the sleeper direction in a state independent of the joint with the roof structure 60.

  The front window 19 is provided with a receding angle toward the side, and a plan view of the outer surface (wife surface) of the wife structure 50 is formed in a three-sided folded wife shape in which a portion of the through door 18 protrudes. Further, the upper half of the side surface of the wife structure 50 is inclined toward the inner side of the vehicle body in the same manner as the side structure 30.

  The end beam 26 is formed in a Z-shaped cross section, and an upper surface plate 55 is provided on an upper surface portion facing the inner side of the vehicle body, and a front end portion of a lower protruding piece 26a that protrudes horizontally toward the outer side of the vehicle body. Is formed into a shape corresponding to the three-face folded wife shape of the wife structure 50. Accordingly, it is not necessary to bend the entire end beam 26 in accordance with the shape of the end structure 50, and the end column 26 is firmly fixed to the end beam 26 by the protruding piece 26a. Can be fixed by welding.

  A pair of end pillar reinforcement members 57 each having a height approximately half that of the end post 53 are provided at positions corresponding to the end post 26 of the end beam 26, and positions corresponding to the corner posts 54 at both ends. Are provided with a pair of corner pillar reinforcing members 58 each having a length reaching the lower frame portion of the window opening frame portion 52. In addition, a connector support frame 59 a for supporting the connector 59 is provided below the end beam 26.

  The lower part 57a of the columnar reinforcing member 57 is joined to the outer surfaces of the end beam 26 and the lower end beam member 26c through slits 26b provided in the upper surface plate 55 and the protruding piece 26a, respectively. The lower part 58 a of the corner column reinforcing member 58 has a lower end joined to the upper surface of the protruding piece 26 a and a lower end side surface joined to the outer surface of the end beam 26. In this way, by joining the end post reinforcing member 57 and the corner post reinforcing member 58 to the outer surface of the end beam 26, the end post reinforcing member 57 and the end post reinforcing member 58 can be firmly joined to the end beam 26. The external force applied to the end post reinforcing member 57 and the corner post reinforcing member 58 can be received by the end beam 26.

  Then, the end pillar reinforcing member 57 and the end pillar 53 are joined, and the end pillar reinforcing member 58 and the end pillar 54 are joined, so that the end post is applied by external force applied to all the height positions of the end pillar 53 and the corner pillar 54. With respect to the shearing force and the bending moment generated at each joint portion of 53 and corner post 54, the end post 53 and corner post 54 can be joined to the underframe 20 with sufficient bond strength. Furthermore, the load applied to all the height positions of the post column 53 and the corner column 54 by setting the height of each column reinforcing member 57, 58 to about 1/2 of the height of the post column 53 and the corner column 54. Can be effectively resisted, and sufficient bonding strength with the underframe 20 can be maintained.

  Openings 53 a and 54 a through which the respective column reinforcing members 57 and 58 can pass are provided on the inner side of the body of the end column 53 and the corner column 54. Assembling the end pillars 53 and the corner pillars 54 and the respective column reinforcement members 57 and 58 is performed by connecting the column reinforcement members 57 and 58 to the end pillars through the openings 53a and 54a of the end pillars 53 and the corner pillars 54 assembled to the end structure 50. 53 and the inside of the corner post 54, and the inner peripheries of the joint holes 53b and 54b provided on the side surfaces of the end post 53 and the corner post 54 and the side surfaces of the column reinforcing members 57 and 58 are connected. By welding, the end pillars 53 and corner pillars 54 and the respective column reinforcing members 57 and 58 are joined. Further, reinforcing angles 53 c and 54 c are joined and connected between the lower ends of the end pillars 53 and corner pillars 54 and the upper surface plate 55.

  The upper portions of the end pillars 53 and the corner pillars 54 extend outwardly from the outer sides of the end pillars 53 and the corner pillars 54, and the extended portions are arranged on the outer surface of the upper reinforcing beam 56 and joined to each other. That is, the end beam 26 and the upper reinforcing beam 56 are connected to each other by the end column 53 and the corner column 54 joined to the outer surfaces thereof, and the end beam 26, the upper reinforcing beam 56, the pair of end columns 53, and the pair of corner columns. The overall rigidity of the wife structure 50 is increased by using a frame 54. Further, column reinforcement members 57 and 58 are provided below the end pillars 53 and the corner pillars 54, respectively, and the lower portions of the column reinforcement members 57 and 58 are joined to the outer surface of the end beam 26, thereby further increasing the rigidity of the end structure 50. I try to improve.

  The wife structure 50 formed in this way is coupled to the end beam 26 and the upper surface plate 55 connected to the middle slide beam 43, and is connected to the end of the vehicle body 11 via the crushable zone 40 provided in the entrance / exit 13 portion. Provided in the section. A lower slide portion 41 and an upper slide portion 42 are provided above and below the crushable zone 40.

  The lower slide portion 41 is connected to a central portion in the width direction of the end beam 26, and a slide middle beam 43 projecting in a substantially T shape in a plan view in a horizontal direction toward the pillow beam 22 from the pillow beam 22. It is provided so as to be slidable in the longitudinal direction of the vehicle body via the support members 43a and 44a with respect to the guide middle beam 44 protruding in the horizontal direction toward the vehicle end direction, and to be broken when a preset load is exceeded. It is formed by connecting with the designed lower fuse member.

  The upper slide part 42 includes a slide bar 47 that protrudes horizontally from both ends of the upper reinforcing beam 56 along the head part 33 a of the door frame part 33, and a guide frame 48 provided on the upper part of the door pocket part 37. Yes. The slide bar 47 is provided so as to be slidable in the longitudinal direction of the vehicle body with respect to the guide frame 48 and, like the lower slide part 41, is an upper fuse designed to break when a preset load is exceeded. The slide bar 47 and the guide frame 48 are connected by a member.

  Each of the fuse members is a member having a strength capable of withstanding a preset tensile load and a compressive load, and is permanent with a normal tensile load and a compressive load applied when a plurality of railway vehicles are connected by a connector 59 and used. The strength is set such that it does not deform or break, but breaks when an excessive load exceeding a preset load is applied by collision. That is, when an excessive load is applied, the fuse member breaks, so that the slide middle beam 43 and the slide bar 47 can slide with respect to the guide middle beam 44 and the guide frame 48, respectively. Energy absorption is performed by crushing the plurality of shock absorbing members 45 installed in the.

  In addition, the strength of each member arranged in the entrance / exit part, for example, the strength in the entrance / exit part of the door frame portion 33, the floor plate 17, and the roof structure 60 is set to be lower than the strength of the fuse member. When an excessive load is applied and the fuse member breaks, the door frame portion 33, the floor plate 17 and the entrance / exit portions of the roof structure 60 are also set to be deformed simultaneously with the breakage of the fuse member.

  The shock absorbing member 45 includes, for example, four long shock absorbers 45a made of square pipes having the same shape having a square cross section, and two short lengths shorter than the length of the long shock absorber 45a. A combination of the shock absorber 45b and the axes of the shock absorbers 45a and 45b in parallel with each other can be used. The base ends of the shock absorbers 45a and 45b are integrally joined to the mounting plate 45c. The mounting plate 45c is attached to the end surfaces of the pillow beam 22 and the guide middle beam 44, and the shock absorbers 45a and 45b The axis is arranged in the vehicle longitudinal direction. At the tip of each shock absorber 45a, 45b, a notch 45d is provided at the tip edge of one of the opposing faces of the two opposing faces, and each shock absorber 45a, 45b The notches 45d are combined so as not to be adjacent to each other.

  In the impact absorbing member 45 formed in this way, at the time of a collision, the opposing edge that is not provided with the notched portion 45d of the long impact absorber 45a is first deformed by receiving an impact, and then the notched portion of the short impact absorber 45b. The opposing edge not provided with 45d receives an impact and starts to deform. The deformation of each shock absorber 45a, 45b is continuously repeated toward the base end side while mutually affecting the wall surfaces of the adjacent shock absorbers. Thereby, the wall surface of each impact-absorbing body 45a, 45b can be continuously buckled in a bellows shape, and an impact can be absorbed. In addition, since a plurality of shock absorbers are arranged and joined in the width direction and the height direction, the bending rigidity of the shock absorbing member 45 is increased, and it is possible to prevent bending at the middle portion, so that collision energy is reliably absorbed. can do.

  Thus, the end beam 26 joined to the lower portion of the wife structure 50 is held by the lower slide portion 41 formed by the slide middle beam 43 and the guide middle beam 44 so as to be slidable in the longitudinal direction of the vehicle body. The upper reinforcing beam 56 provided at the upper part is formed so as to be slidably held in the longitudinal direction of the vehicle body by the upper slide part 42 formed by the slide rod 47 and the guide frame 48 arranged on both sides of the vehicle body. Further, the end beam 26 and the upper reinforcing beam 56 are firmly connected to each other by the end post 53 and the corner post 54, and the rigidity of the end post 53 and the end post 54 is increased below the end post 53 and the end post 54. Since the column reinforcing members 57 and 58 are provided for the purpose, the end beam 26, the upper reinforcing beam 56, the end column 53 and the corner column 54 are firmly joined, and the end column 53 and the end column 54 are connected to the end beam. A state where the end structure 50 is rigidly framework by placing in front of 6 and the upper reinforcing beam 56.

  As a result, even when a large external force is applied to the wife structure 50 from the front direction, a large external force is applied to the wife structure 50 from an oblique direction, or a large external force is applied to a part of the wife structure 50, the wife structure. 50 can receive external force and the lower slide part 41 and the upper slide part 42 can move the wife structure 50 in parallel toward the rear of the vehicle body, so that the wife structure 50 falls toward the passenger compartment 14. Can be prevented.

  Further, since the end column 53 and the corner column 54 are joined to the outer surfaces of the upper reinforcement beam 56 and the end beam 26, the external force acting on the end column 53 and the corner column 54 is reliably applied to the upper reinforcement beam 56 and the end beam 26. Can communicate. Furthermore, since the lower part of the corner column reinforcing member 58 has its lower end joined to the upper surface of the protruding piece 26a and its lower end side surface joined to the outer surface of the end beam 26, the corner column reinforcing member 58 is connected to the upper surface of the end beam 26. The joint strength between the corner column reinforcing member 58 and the end beam 26 can be improved as compared with the case of standing upright, and the external force on the end face can be effectively transmitted to the entire end structure 50 and the end beam 26. it can.

  Therefore, regardless of the direction of the external force acting on the wife structure 50 and the position where the external force is applied, the wife structure 50 can be moved in parallel toward the rear of the vehicle body while deforming the portion of the entrance / exit 13 serving as a crushable zone. Therefore, in the shock absorbing member 45, an external force acts in the axial direction of the shock absorbing bodies 45a and 45b. Thereby, each shock absorber 45a, 45b can be reliably buckled and deformed as described above, and the effect of absorbing external force by the shock absorbing member 45 can be sufficiently exhibited. Thus, the passenger cabin 14 can be protected by deforming only the part of the entrance / exit 13 provided at the vehicle end portion and absorbing the collision energy.

  Further, the lower end of the side column 31 of the side structure 30 is joined to the upper surface portion of the protruding piece 21 a provided on the side beam 21 of the underframe 20, and the lower inner surface of the side column 31 is joined to the outer surface portion 21 b of the side beam 21. Therefore, the external force applied to the side structure 30 from the side of the vehicle body can be supported by the outer surface portion 21 b of the side beam 21 via the lower end portion of the side column 31. Therefore, compared with the case where the lower end of the side column 31 is bonded to the upper surface of the side beam 21, the bonding strength between the side column 31 and the side beam 21 is improved, and the underframe 20 and the side structure 30 can be bonded firmly. Therefore, even if a large external force is applied to the side surface portion of the vehicle body, the side structure 30 can be prevented from being deformed toward the vehicle body inner side. Further, the external force applied to the roof structure 60 from above can also be supported by the protruding piece 21a of the side beam 21 via the side pillar 31, so that the roof structure 60 is deformed toward the inside of the vehicle body by the external force from above. Can be suppressed.

  Further, the column reinforcement members 57 and 58 are assembled to the column pillars 57 and 58 through the openings 53a and 54a provided on the inner side of the vehicle body 53 and the corner columns 54. By inserting it into the pillars 53 and the corner pillars 54, it is possible to move and assemble the wife structure 50 in the horizontal direction. Accordingly, the wife structure 50 and the base frame 20 can be coupled in a state in which the wife pillar 53 and the corner pillar 54 are pre-assembled to the wife structure 50 having various vehicle cross-sections. Assembly with the end pillar 53 and the corner post 54 can be easily performed. Furthermore, it is possible to deal with a wife structure in which the wife pillar 53 and the corner pillar 54 are inclined.

In the forehead car body, a driver's cab and a crew room are provided at the entrance 13 and a wob is provided with a hood, a marker lamp, and the like. Further, the end pillar 53 can be provided at an appropriate position according to the presence or absence of the through door 18 and the shape of the end face window 19, and may be one. Furthermore, the structure of the structure and the upper portion connecting member 49 of the shock absorbing member 45 can also be employed an appropriate structure.

  DESCRIPTION OF SYMBOLS 11 ... Vehicle body, 12 ... Entrance door, 13 ... Entrance / exit stand, 14 ... Guest room, 15 ... Side window, 16 ... Wheel, 17 ... Floor board, 18 ... Through door, 19 ... Wife face window, 20 ... Underframe, 21 ... side Beam, 21a ... projecting piece, 21b ... outer surface, 22 ... pillow beam, 23 ... middle beam, 24 ... transverse beam, 25 ... long base, 26 ... end beam, 26a ... projecting piece, 26b ... slit, 30 ... side structure, 31 ... Side pillars, 32 ... Bone members, 33 ... Door frame, 33a ... Kamoi part, 34 ... Window frame part, 35 ... Waist board, 36 ... Curtain board, 37 ... Door pocket part, 40 ... Crushable zone, 41 ... Lower part Slide part 42 ... Upper slide part 43 ... Slide center beam 44 ... Guide center beam 45 ... Shock absorbing member 45a ... Long impact absorber 45b ... Short impact absorber 45c ... Mounting plate 45d ... Notch , 47 ... slide rod, 48 ... guide frame, 50 ... wife structure, 51 ... door opening frame 52 ... Opening frame portion for window, 52a ... Reinforcing member, 53 ... Stud pillar, 54 ... Corner pillar, 53a, 54a ... Opening, 53b, 54b ... Joint hole, 53c, 54c ... Reinforcing angle, 55 ... Top plate, 56 ... Upper reinforcing beam, 57 ... end pillar reinforcing member, 58 ... corner column reinforcing member, 59 ... coupler, 59a ... coupler support frame, 60 ... roof structure, 61 ... long girder, 62 ... rafter, 63 ... roof plate, 64 …horn

Claims (3)

  In a railway vehicle in which a car frame is formed by joining a frame, a side structure, a wife structure, and a roof structure, a wife structure is provided at the end of the vehicle body via a crushable zone, and the wife structure is provided at the center in the width direction. And a pair of corner pillars provided at both ends in the width direction, and an upper reinforcing beam provided at an upper portion of the wife structure, and the lower end portion of the wife pillar and the corner pillar is disposed on the platform. The upper ends of the end pillars and the corner pillars are joined to the upper reinforcing beams, respectively, on the end beams of the frame, and the crushable zone is provided on the underframe from the center of the end beams of the underframe. A slide center beam protruding in the horizontal direction toward the direction of the pillow beam and a guide center beam protruding horizontally from the pillow beam toward the vehicle end are slidable in the longitudinal direction of the vehicle body, and the upper reinforcing beam Slice that protrudes horizontally from both ends along the top of the side structure Railway vehicle, characterized in that the rod and the side structure upper portion provided with guide frames were slidably provided in the longitudinal direction of the vehicle body. The slide center beam and the guide center beam are connected by a lower fuse member, the slide bar and the guide frame are connected by an upper fuse member, and the strength of each fuse member is set in advance to the wife structure. 2. The railway vehicle according to claim 1, wherein the railcar is set to a strength that allows the slide intermediate beam and the slide bar to slide when a load exceeding 1 is applied. The railway vehicle according to claim 1 or 2, wherein an impact absorbing member is provided between the slide middle beam and the pillow beam.

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