EP3045371A1 - Véhicule ferroviaire - Google Patents

Véhicule ferroviaire Download PDF

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Publication number
EP3045371A1
EP3045371A1 EP13893466.6A EP13893466A EP3045371A1 EP 3045371 A1 EP3045371 A1 EP 3045371A1 EP 13893466 A EP13893466 A EP 13893466A EP 3045371 A1 EP3045371 A1 EP 3045371A1
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EP
European Patent Office
Prior art keywords
underframe
support member
horizontal piece
protruding part
upper floor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13893466.6A
Other languages
German (de)
English (en)
Other versions
EP3045371A4 (fr
EP3045371B1 (fr
Inventor
Takashi Yoshizawa
Toshiharu Miyamoto
Toshihiko Mochida
Takahisa Yamamoto
Hideshi Ohba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to EP18180975.7A priority Critical patent/EP3421318B1/fr
Publication of EP3045371A1 publication Critical patent/EP3045371A1/fr
Publication of EP3045371A4 publication Critical patent/EP3045371A4/fr
Application granted granted Critical
Publication of EP3045371B1 publication Critical patent/EP3045371B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/10—Floors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems

Definitions

  • the preset invention relates to a railway vehicle and particularly relates to a railway vehicle having a floor structure that restrain separation of an upper floor from an underframe when the railway vehicle collides or the like.
  • PTL 2 describes that "a locking step part is formed on both side surfaces of a vibration-proof member which supports an interior floor board, and a housing groove opening on the top side is formed in a floor bearing member provided on a structure floor board.
  • a protruding part which engages with the top surface of the locking step part on one side surface of the vibration-proof member is provided and a support part extending outward in the horizontal direction, continuing from the top part of the other sidewall of the housing groove, is provided.
  • a holding plate having a protruding part which engages with the top surface of the locking step part on the other side surface of the vibration-proof member is attached to the support part.”
  • the mounting has a first C-shaped profiled part (1), with inward facing projections (5), and a second profiled part (2) with upper and low, both parts of plastic or aluminum.
  • Elastic bearing supporting it on the first profile when not under load, or under small load only.
  • the elastic bearing part is glued to the second profile, and another bearing part (12) is glued to the first profile.”
  • the bonding surface between the top surface of the vibration-proof rubber and the upper floor, the vibration-proof rubber itself, or the bonding surface between the bottom surface of the vibration-proof rubber and a vibration-proof bearing provided on the underframe breaks, posing the risk of the upper floor being torn off upward and floating up.
  • an elastic support structure for the upper floor which stops the upper floor with seats, tables and the like fixed thereto from floating up, without obstructing elastic support of the upper floor by an ordinary elastic member such as a vibration-proof rubber when a large impact acts on the railway vehicle, should be achieved.
  • the invention is to propose a railway vehicle whose upper floor can be effectively prevented from floating upward when a large impact acts on the railway vehicle, without obstructing elastic support of the upper floor.
  • a railway vehicle in which an upper floor forming a floor is laid down on a top surface side of an underframe includes: a protruding part provided along a longitudinal direction of the underframe, on the top surface of the underframe; an elastic member arranged along the longitudinal direction of the underframe, and having a bottom surface fixed to the top surface of the underframe or a top surface of a horizontal piece of the protruding part; and a support member fixed to a top surface of the elastic member and fixed to a bottom surface of the upper floor.
  • the protruding part and the support member are formed in such a way that the protruding part locks movement of the support member into a direction away from the top surface of the underframe.
  • the protruding part locks the movement of the support member and therefore the upward and downward movement of the upper floor is restrained as well.
  • the protruding part and the support member do not affect the elastic support of the upper floor by the elastic member.
  • a railway vehicle whose upper floor can be effectively prevented from floating upward when a large impact acts on the railway vehicle, without obstructing elastic support of the upper floor, can be achieved.
  • FIG. 1 is a vertical cross-sectional view in the longitudinal direction of a railway vehicle according to the first embodiment.
  • FIG. 2 is a detailed view in which the part A in FIG. 1 is enlarged.
  • a railway vehicle structure 1 is made up of an underframe 2 forming a floor, side structures 3 provided upright at the ends in the width direction of the underframe 2, end structures 4 provided upright at the ends in the longitudinal direction of the underframe 2 (see FIG. 4 ), and a roof structure 5 placed on top of the side structures 3 and the end structures 4.
  • each of the underframe 2, the side structures 3 and the roof structure 5 is made up of a member formed by coupling two face plates facing each other into one body with ribs. These members are manufactured by extruding an aluminum alloy and are called double-skin members. These double-skin members used for the railway vehicle structure 1 are often extruded along the longitudinal direction of the railway vehicle.
  • an upper floor 11 is laid down via a vibration-proof rubber 10 ( FIG. 2 ), and seats 6 and tables 7 or the like are fixed to the upper floor 11.
  • the upper floor 11 is made up of a fixture rail 12 used when fixing the seats 6 and the tables 7 or the like to the upper floor 11, and a floor member 13 connected to the fixture rail 12 and thus forming the floor.
  • the fixture rail 12 is a channel member with a C-cross section opening upward.
  • the floor member 13 is fastened with screws 14 to edge parts 12a protruding in the width direction (sleeper direction) indicated by an arrow 120, from side bottom end parts of the fixture rail 12.
  • the floor member 13 is formed of, for example, a wood member or aluminum honeycomb member as a core member, with thin face plates of an aluminum alloy or the like bonded to both sides of the core member.
  • the fixture rail 12 is produced by extrusion of an aluminum alloy, similarly to the underframe 2.
  • the upper floor 11 is carried into the railway vehicle structure 1 and positioned at a predetermined position, and subsequently placed on a support member 15 fixed to the top surface of the vibration-proof rubber 10 fixed in advance at a predetermined position on the top surface of the underframe 2. Then, both end parts in the width direction (sleeper direction) of the upper floor 11 are screwed to support parts, not shown, provided on bottom end parts of the side structures 3, and the fixture rail 12 situated at a center part in the width direction of the upper floor 11 is fastened to the support member 15 on the vibration-proof rubber 10 with screws 16.
  • a predetermined plate-like member 18 such as a sound absorbing member or heat insulation member is arranged according to need.
  • a vibration-proof support structure made up of a protruding part 20 on the underframe 2, described later, the support member 15 and the vibration-proof rubber 10 may be employed.
  • a protruding part 20 with an inverted L-shaped cross section is integrally extruded with the underframe 2, along the longitudinal direction (rail direction) of the underframe 2 indicated by an arrow 110 in FIG. 4 (see FIG. 4 ).
  • the protruding part 20 includes a vertical piece 20a extending in a vertical direction from the face plate 2a, a horizontal piece 20b extending in a horizontal direction of a top end part of the vertical piece 20a, and a protrusion 20c protruding downward from a horizontal end part of the horizontal piece 20b (protruding toward a second horizontal piece 15c of the support member 15, described later).
  • the vertical piece 20a is provided near the connecting part between the face plate 2a of the underframe 2 and a slant rib 2c.
  • the vibration-proof rubber 10 is fixed with an adhesive along the longitudinal direction (rail direction) of the face plate 2a and subsequently the support member 15 is fixed to the top part of the vibration-proof rubber 10 with an adhesive.
  • This support member 15 includes a first horizontal piece 15a, a vertical piece 15b extending downward from one end part in the width direction of the first horizontal piece 15a, a second horizontal piece 15c extending in a horizontal direction from a bottom end part of the vertical piece 15b, and a protrusion 15d protruding upward from a horizontal end part of the second horizontal piece 15c (protruding toward the horizontal piece 20b of the protruding part 20).
  • the support member 15 has the second horizontal piece 15c inserted between the horizontal piece 20b of the protruding part 20 of the underframe 2 and the top face plate 2a of the underframe 2 and is bonded onto the vibration-proof rubber 10 in such a way that the second horizontal piece 15c and the horizontal piece 20b of the protruding part 20 spatially overlap in a direction perpendicular to the top surface of the underframe 2 (arrow 130).
  • a gap is provided between the horizontal piece 20b of the protruding part 20 and the second horizontal piece 15c of the support member 15, between a horizontal end part of the horizontal piece 20b of the protruding part 20 and the vertical piece 15b of the support member 15, between a horizontal end part of the second horizontal piece 15c of the support member 15 and the vertical piece 20a of the protruding part 20, between the protrusion 20c of the protruding part 20 and the protrusion 15d of the support member 15, between the protrusion 20c of the protruding part 20 and the second horizontal piece 15c of the support member 15, and between the protrusion 15d of the support member 15 and the horizontal piece 20b of the protruding part 20.
  • the configuration of the protruding part 20 (vertical piece 20a, horizontal piece 20b, protrusion 20c) of the underframe 2 and the configuration of the support member 15 (first horizontal piece 15a, vertical piece 15b, second horizontal piece 15c, protrusion 17d) are arranged with plane symmetry about a vertical cross section in the center part of the railway vehicle structure 1 (cross section taken along B-B in FIG. 1 ).
  • a gap g1 (see FIG. 2 ) is provided between the vertical piece 15b of the support member 15 and a side surface 10a of the vibration-proof rubber 10, thus forming a configuration which does not prevent deformation of the vibration-proof rubber 10 elastically supporting the upper floor 11 when a load is applied thereto. Moreover, since the gap g1 is provided to the side surface 10a of the vibration-proof rubber 10, a configuration which can use a rubber with a small spring constant and a high vibration insulation effect (soft rubber with a low rubber hardness) as the vibration-proof rubber 10 is formed.
  • a cut-out 15e is provided at an open end part in the width direction of the first horizontal piece 15a of the support member 15, thus achieving lighter weight of the support member 15.
  • the floor member 13 is fixed to the edge parts 12a of the fixture rail 12 with the screws 14, thus producing the upper floor 11 made up of the fixture rail 12 and the floor member 13 formed as one body.
  • the dimension in the width direction (sleeper direction) of the upper floor 11 is substantially the same as the dimension in the width direction (sleeper direction) of the inside of the railway vehicle structure 1.
  • a length that allows easy handling of the upper floor 11 carried into the vehicle for example, approximately 2 [m] is chosen.
  • the vibration-proof rubber 10 is fixed with an adhesive at a predetermined position on the top surface of the underframe 2 (surface of the face plate 2a), and then the first horizontal piece 15a of the support member 15 is fixed with an adhesive to the top surface of the vibration-proof rubber 10 while the support member 15 is being positioned so as to satisfy the above positional relations between the vertical piece 20a, the horizontal piece 20b and the protrusion 20c of the protruding part 20, and the vertical piece 15b, the second horizontal piece 15c and the protrusion 15d of the support member 15.
  • the upper floor 11 is positioned and placed on the top surface of the first horizontal piece 15a of the support member 15. Moreover, the screw 16 is inserted into the fixture rail 12 from the upward opening part of the fixture rail 12, and this screw 16 is screwed into the support member 15 via the fixture rail 12, thus fixing the fixture rail 12 to the support member 15. As this work is repeated, the upper floors 11 are connected in series to each other along their longitudinal direction, forming a continuous single-body floor with less visible joints. The form or the like of the joint parts of the upper floors 11 in order to connect the upper floors 11 in series to each other along the longitudinal direction (rail direction) of the railway vehicle structure 1 will be described later.
  • FIG. 3 shows a configuration example in the case where the above vibration-proof support structure providing vibration-proof support of the upper floor 11 is employed in a railway vehicle in which the top surface of the underframe 2 and the bottom surface of the floor have smaller dimensions.
  • This vibration-proof support structure has a structure similar to the vibration-proof support structure according to this embodiment described above with reference to FIG. 2 , except that the thickness of a vibration-proof rubber 21 is smaller and that the height dimension of a vertical piece 22b of a support member 22 is shorter.
  • 22a denotes a first horizontal piece of the support member
  • 22c denotes a second horizontal piece of the support member
  • 22d denotes a protrusion of the support member 22.
  • a railway train set made up of a plurality of railway vehicles includes a railway vehicle having a truck equipped with a main motor, a railway vehicle which is not equipped with a main motor, and a railway vehicle equipped with a current collector on its roof in order to supply electric power from overhead lines to the railway vehicle, or the like.
  • a height dimension H1 ( FIG. 2 ) from the top surface of the underframe 2 (surface of the face plate 2a) to the bottom surface of the upper floor 11 and thus increasing the height dimension from the top surface of the upper floor 11 to the bottom surface of the ceiling 8 may be taken.
  • a height dimension H2 ( FIG. 3 ) from the top surface of the underframe 2 to the bottom surface of the upper floor 11 can be reduced simply by reducing the height dimension of the vertical piece 22b of the support member 22 and the height dimension of the vibration-proof rubber 21, as shown in FIG. 3 .
  • the railway vehicle in which the dimension from the top surface of the underframe 2 to the bottom surface of the upper floor 11 is smaller can be dealt with by employing the support member 22 in which the height dimension of the vertical piece 22b is smaller and by using the vibration-proof rubber 21 with a smaller thickness. Therefore, there is no need to change the dimension of the vertical piece 20a (horizontal piece 20b, protrusion 20c) or the like extruded integrally with the underframe 2, according to the height dimension from the top surface of the underframe 2 to the bottom surface of the upper floor 11. Thus, there is no increase in the types of the underframe 2 or no preparation of a plurality of dies (molds used for extrusion) for the extruded members forming the underframe 2, and increase in the manufacturing cost can be restrained.
  • FIG. 4 is a cross-sectional view in a direction along the longitudinal direction of the railway vehicle having the above vibration-proof support structure according to the embodiment (cross-sectional view taken along C-C in FIG. 2 ).
  • the railway vehicle has vestibule sections D at the ends in the longitudinal direction (rail direction) and has a passenger cabin section P in the middle in its longitudinal direction.
  • the vestibule section D is a space situated above a truck 30 and has doorways in the side structures 3 ( FIG. 1 ) which passengers use for boarding and alighting.
  • the vestibule section D and the passenger cabin section P are partitioned by a partition board 31, and the partition board 31 is provided with a door (not shown) communicating from the vestibule section D to the passenger cabin section P.
  • the truck 30 and underfloor equipment 32, 33 are provided under the floor of the railway vehicle.
  • the underfloor equipment 32 is a power pack having an internal combustion engine and a power generator.
  • the underfloor equipment 33 is a control device which controls a brake provided on the truck 30.
  • the underfloor equipment 32 has a movable part and therefore is highly likely to apply vibration to the underframe 2.
  • the underfloor equipment 33 has no movable part and therefore less likely to apply vibration to the underframe 2. If the truck 30 is equipped with a main motor, vibration due to the rotation of the main motor is transmitted to the underframe 2. Even if the truck 30 is not equipped with a main motor, vibration tends to be transmitted from the truck 30 to the underframe 2 because of joints of tracks 34 and misalignment of the tracks 34 or the like.
  • the upper floor 11 provided at a position P1 above the underfloor equipment 32 applying vibration to the underframe 2 is fixed to the top surface of the underframe 2 via the vibration-proof rubber 10 (vibration-proof support).
  • the upper floor 11 provided at a position P2 above the underfloor equipment 33 not applying vibration to the underframe 2 is directly fixed to the horizontal piece 20b of the protruding part 20 provided on the underframe 2 without using the vibration-proof rubber 10 arranged on the top surface of the underframe 2 (no vibration-proof support, see FIG. 9 ).
  • the upper floors 11 are connected in series along the longitudinal direction (rail direction) of the railway vehicle structure 1 and arranged on the underframe 2.
  • a male contact part 11b is provided at one end in the longitudinal direction (rail direction) of the upper floor 11, and a female contact part 11a is provided at the other end in the longitudinal direction of the upper floor 11.
  • the vibration-proof rubber 10 is continuously arranged along the longitudinal direction (rail direction) of the underframe 2, whereas the protruding part 20 of the underframe 2 and the support member 15 are dispersedly arranged along the longitudinal direction of the underframe 2.
  • This is a measure for achieving a lighter weight of the railway vehicle structure 1.
  • redundant parts of protruding bodies having the same cross-sectional shape as the protruding part 20
  • extruded integrally with the underframe 2 and continuously along the longitudinal direction (rail direction) of the underframe 2 are cut off with grinder or the like, thus forming the individual protruding parts 20.
  • the protruding parts 20 need not be provided dispersedly and those protruding bodies may be directly used as the protruding parts 20.
  • the horizontal piece 20b of the protruding part 20 provided on the underframe 2 locks the second horizontal piece 15c of the support member 15 fixed to the upper floor 11 from moving in the direction away from the top surface of the underframe 2 and therefore the upper floor 11 can be restrained from floating up from the underframe 2.
  • the impact acting on the railway vehicle is not necessarily limited only to the direction along the direction of travel.
  • cases where an automobile collides with the lateral side of the railway vehicle at a railway crossing or the like are conceivable.
  • the configuration of the vertical piece 20a and the like of the protruding part 20 provided on the underframe 2 and the configuration of the vertical piece 15b and the like of the support member 15 are arranged with plane symmetry about the vertical cross section in the center part of the railway vehicle structure 1, even if the upper floor 11 receives repetitive forces in the direction intersecting with the direction of travel, the vertical piece 20a of the protruding part 20 of the underframe 2 locks the movement in the width direction (sleeper direction) of the vertical piece 15b of the support member 15, and even if the upper floor 11 is about to be lifted upward by a force in the horizontal direction, the horizontal piece 20b of the protruding part 20 of the underframe 2 locks the upward movement of the second horizontal piece 15c of the support member 15.
  • the protrusion 20c is provided on the protruding part 20 of the underframe 2 and similarly the protrusion 15d is provided on the support member 15 so that the protrusion 20c and the protrusion 15d engage with each other when the upper floor 11 is about to be lifted upward, the separation of the upper floor 11 from the underframe 2 can be effectively restrained. Therefore, even if an impact in a horizontal plane (impact in the width direction or in a slant direction) acts on the railway vehicle, the separation of the upper floor 11 from the underframe 2 can be effectively restrained.
  • these protrusion 20c and protrusion 15d contribute to enhance the strengths and rigidities of the horizontal piece 20b of the corresponding protruding part 20 and the second horizontal piece 15c of the support member 15 and can effectively prevent these horizontal pieces 20b, 15c from being damaged even if an impact acts on the upper floor 11.
  • the second horizontal piece 15c of the support member 15 is inserted between the horizontal piece 20b of the protruding part 20 provided on the underframe 2 and the top face plate 2a of the underframe 2, and the support member 15 is fixed on top of the vibration-proof rubber 10 with a configuration in which the horizontal piece 20b of the protruding part 20 and the second horizontal piece 15c of the support member 15 spatially overlap with each other in the direction perpendicular to the top surface of the underframe 2 (arrow 130 in FIG. 2 ), as described above.
  • the gap (space) is provided between the horizontal piece 20b of the protruding part 20 and the second horizontal piece 15c of the support member 15, between the horizontal end part of the horizontal piece 20b of the protruding part 20 and the vertical piece 15b of the support member 15, between the horizontal end part of the second horizontal piece 15c of the support member 15 and the vertical piece 20a of the protruding part 20, between the protrusion 20c of the protruding part 20 and the protrusion 15d of the support member 15, between the protrusion 20c of the protruding part 20 and the second horizontal piece 15c of the support member 15, and between the protrusion 15d of the support member 15 and the horizontal piece 20b of the protruding part 20.
  • the protruding part 20 of the underframe 2 is provided with plane symmetry about the vertical cross section in the center part of the railway vehicle structure 1, the types of component members of the underframe 2 extruded integrally with the protruding part 20 can be reduced. That is, for example, the extruded member (double-skin member) in the right-hand-side half in the width direction (sleeper direction) of the underframe 2 is extruded from the front toward the back, and the extruded member (double-skin member) in the left-hand-side half is extruded from the back toward the front, and these are placed opposite each other in the width direction and joined together to form the underframe 2. With this configuration (structure with plane symmetry about the vertical cross section in the center part), the number of types of component members of the underframe 2 can be reduced and therefore design cost and manufacturing cost can be reduced.
  • the vertical piece 20a of the protruding part 20 of the underframe 2 is provided near the connecting part between the face plate 2a forming the top surface of the underframe 2 and the slant rib 2c connecting both face plates 2a, 2b, the strength and rigidity of the protruding part 20 can be enhanced. That is, when an impact occurs on the railway vehicle and the upper floor 11 is about to move upward, the second horizontal piece 15c of the support member 15 fixed to the upper floor 11 is locked by the horizontal piece 20b of the protruding part 20 provided on the underframe 2.
  • a vertical rib 2d connecting the face plate 2a and the face plate 2b below the vertical piece 20a of the protruding part 20 may be provided so as to secure the strength and rigidity of the vertical piece 20a, as shown in FIG. 5 .
  • the upper floor 11 presents vibration in a local deformation mode which is partial, and the upper floor 11 shows behavior as an object with a plurality of degrees of freedom, having with a plurality of masses and a spring, instead of a single mass.
  • the legs 6a of the seats 6 and the legs 7a of the tables 7 are fixed directly above the vibration-proof rubber 10, when the weight of the seats 6 and the weight of passengers seated there act on the vibration-proof rubber 10 via the fixture rail 12, the natural vibration frequency of a spring mass system using the vibration-proof rubber 10 as a spring and the upper floor 11 as a mass is smaller than in the case where the seats 6 are fixed to the upper floor 11 in areas other than directly above the vibration-proof rubber 10. Therefore, the frequency range where a vibration-proof effect can be expected is enlarged toward lower frequencies and therefore a high vibration-proof effect can be achieved. This has the effect of further reducing in-vehicle noises.
  • the highly rigid fixture rail 12 tends to be a node of vibration and the upper floor 11 is supported by the vibration-proof rubber 10 at the position of the node, a structure in which the vibration of the underframe 2 is less likely to be propagated to the upper floor 11 is provided.
  • the legs 6a of the seats 6 are fixed by the highly rigid fixture rail 12, durability against an upward impact load which acts to tear off the legs 6a of the seats 6 from the upper floor 11 at the time of impact is improved, compared with the case where the fixture rail 12 is not provided.
  • the support member 15 can be bonded and fixed to the top surface of the vibration-proof rubber 10 in advance and the upper floor 11 can be fixed there, the positioning of the support member 15 is easy and the ease of assembly is improved.
  • FIG. 6 shows the vibration-proof support structure of the upper floor 11 according to the second embodiment.
  • a protruding part 41 with an inverted L-shaped cross section is integrally extruded with the underframe 40, along the longitudinal direction (rail direction) of the underframe 40.
  • the protruding part 41 includes a vertical piece 41a extending in a vertical direction from the face plate 40a, a horizontal piece 41b extending in a horizontal direction of a top end part of the vertical piece 41a, and a protrusion 41c protruding downward from a horizontal end part of the horizontal piece 41b (protruding toward a second horizontal piece 43c of a support member 43, described later), and is formed continuously or dispersedly along the longitudinal direction of the underframe 40.
  • the horizontal piece 41b of the protruding part 41 is formed with a broader width in the width direction (sleeper direction) than the horizontal piece 20b of the protruding part 20 in the first embodiment ( FIG. 2 ).
  • the vertical piece 41a is provided near the connecting part between the face plate 40a forming the top surface of the underframe 40 and a slant rib 40c connecting the face plate 40a and a face plate 40b.
  • a vibration-proof rubber 42 having substantially the same width as the horizontal piece 41b of the protruding part 41 and having the same length as the support member 43, described below, in the longitudinal direction (rail direction), is fixed with an adhesive, and the support member 43 is fixed to the top part of the vibration-proof rubber 42.
  • This support member 43 has a substantially C-shaped cross section and includes a first horizontal piece 43a, a vertical piece 43b extending downward from one end part in the width direction of the first horizontal piece 43a, a second horizontal piece 43c extending in a horizontal direction from a bottom end part of the vertical piece 43b so as to face the first horizontal piece 43a, and a protrusion 43d protruding upward from a horizontal end part of the second horizontal piece 43c (protruding toward the horizontal piece 41b of the protruding part 41).
  • the support member 43 has the second horizontal piece 43c inserted between the horizontal piece 41b of the protruding part 41 and the top face plate 40a of the underframe 40, and the surface facing the second horizontal piece 43c, of the first horizontal piece 43a, is fixed with an adhesive to the top surface of the vibration-proof rubber 42 in such a way that the horizontal piece 41b of the protruding part 41 and the second horizontal piece 43c of the support member 43 spatially overlap in a direction perpendicular to the top surface of the underframe 40 (arrow 130).
  • a gap is provided between the horizontal piece 41b of the protruding part 41 and the second horizontal piece 43c of the support member 43, between a horizontal end part of the horizontal piece 41b of the protruding part 41 and the vertical piece 43b of the support member 43, between the protrusion 41c of the protruding part 41 and the second horizontal piece 43c of the support member 43, between a horizontal end part of the second horizontal piece 43c of the support member 43 and the vertical piece 41a of the protruding part 41, and between the protrusion 43d of the support member 43 and the horizontal piece 41b of the protruding part 41.
  • the configuration of the protruding part 41 (vertical piece 41a, horizontal piece 41b, protrusion 41c) of the underframe 40 and the configuration of the support member 43 (first horizontal piece 43a, vertical piece 43b, second horizontal piece 43c, protrusion 43d) are arranged with plane symmetry about a vertical cross section in the center part of the railway vehicle structure 1 (cross section taken along B-B in FIG. 1 ).
  • a gap g2 is also provided between the vertical piece 43b of the support member 43 and a side surface 42a of the vibration-proof rubber 42, thus forming a configuration which does not prevent deformation of the vibration-proof rubber 10 elastically supporting the upper floor 11 when a load acts thereon. Moreover, since the gap g2 is provided to the side surface 42a of the vibration-proof rubber 42, a configuration in which a rubber with a small spring constant and a high vibration insulation effect (soft rubber with a low rubber hardness) can be selected as the vibration-proof rubber 42 is formed.
  • a cut-out 43e is provided at an open end part in the width direction of the first horizontal piece 43a of the support member 43, thus achieving lighter weight of the support member 43.
  • the upper floor 11 made up of the fixture rail 12 and the floor member 13 formed as one body is produced by the technique described above in the first embodiment.
  • the vibration-proof rubber 42 is fixed with an adhesive onto the horizontal piece 41b of each protruding part 41 of the underframe 40, and then the surface facing the second horizontal piece 43c, of the first horizontal piece 43a of the support member 43, is fixed with an adhesive to the top surface of the vibration-proof rubber 42 while the support member 43 is being positioned so as to satisfy the above positional relations between the vertical piece 41a, the horizontal piece 41b and the protrusion 41c of the protruding part 41 of the underframe 40, and the first horizontal piece 43a, the vertical piece 43b, the second horizontal piece 43c and the protrusion 43d of the support member 43.
  • the upper floor 11 is positioned and placed on the top surface of the first horizontal piece 43a of the support member 43. Moreover, the screw 16 is inserted into the fixture rail 12 from the upward opening part of the fixture rail 12, and this screw 16 is screwed into the support member 43 via the fixture rail 12, thus fixing the fixture rail 12 to the support member 43. As this work is repeated, the upper floors 11 are connected in series to each other along their longitudinal direction, forming a continuous single-body floor with less visible joints.
  • the second horizontal piece 43c of the support member 43 strikes the horizontal piece 41b of the protruding part 41, and the upward movement of the upper floor 11 is thus restrained.
  • the gap is present between the horizontal piece 41b of the protruding part 41 and the second horizontal piece 43c of the support member 43, and a vibration-proof rubber similar to the vibration-proof rubber 42 may be provided in this gap as well.
  • the vibration-proof support structure according to this embodiment described above with reference FIG. 6 and a rigid support structure as shown in FIG. 7 may be used together.
  • This rigid support structure is formed by a protruding part 44 with a F-shaped cross section extruded integrally with the underframe 40 along the longitudinal direction of the underframe 40, on the top surface side of the underframe 40 (the side of the face plate 40a on the inner side of the vehicle).
  • the protruding part 44 includes a vertical piece 44a extending in a vertical direction from the face plate 40a, a first horizontal piece 44b extending in a horizontal direction from a top end part of the vertical piece 44a, a second horizontal piece 44c extending in a horizontal direction from a middle stage position of the vertical piece 44a so as to face the first horizontal piece 44b, and a protrusion 44d protruding downward from the end of the second horizontal piece 44c.
  • the vertical piece 44a is provided near the connecting part between the face plate 40a of the underframe 40 and the slant rib 40c connected aslant to the face plate 40a.
  • the height from the face plate 40a to the top surface of the first horizontal piece 44b is formed to be the same as the height to the top surface of the first horizontal piece 43a of the support member 43 in the vibration-proof support structure described above with reference to FIG. 6
  • the height from the face plate 40a to the second horizontal piece 44c is formed to be the same as the height to the top surface of the horizontal piece 41b of the protruding part 41 in the vibration-proof support structure described above with reference to FIG. 6 .
  • the upper floor 11 is positioned and placed on the top surface of the first horizontal piece 44b of the protruding part 44 and is fixed to the protruding part 44 (and hence the underframe 40) by having the screw 16 inserted into the fixture rail 12 from the site opening upward of the fixture rail 12 and then screwing this screw 16 into the first horizontal piece 44b of the protruding part 44 via the fixture rail 12.
  • the vibration-proof support structure described above with reference to FIG. 6 is provided at the position P1 above the underfloor equipment 32 made up of the power pack having the internal combustion engine and the power generator, and the rigid support structure described above with reference to FIG. 7 is provided at the position P2 above the underfloor equipment 33 made up of the control device, the rigid support structure and the vibration-proof support structure can be used together.
  • the protruding part 41 ( FIG. 6 ) of the vibration-proof support structure can be prepared by eliminating the part above the second horizontal piece 44c of the protruding part 44, there is no need to change the shape of the underframe 40 for different sites, and a common shape of the underframe 40 can be used regardless of whether the support mechanism of the upper floor 11 is the rigid support structure or the vibration-proof support structure.
  • the height of the upper floor 11 can be lowered by eliminating the part above the second horizontal piece 44c of the above protruding part 44 so as to form the protruding part 41 of FIG. 6 and then directly fixing the fixture rail 12 to the horizontal piece 41b of this protruding part 41 with the screw 16, as shown in FIG. 9 .
  • configurations with different floor heights for different railway vehicles can be easily achieved and a broad range of vehicles types can be dealt with.
  • the protruding part 41 may be provided continuously along the longitudinal direction (rail direction) of the underframe 40, then an anchor hole 41ba may be provided in the horizontal piece 41b of the protruding part 41, and an anchor pin 46 may be inserted in the anchor hole 41ba, as shown in FIG. 10 .
  • the anchor pin 46 and the anchor hole 41ba do not contact each other, but the anchor pin 46 is fixed in a hole 12b provided in the fixture rail 12.
  • the anchor pin 46 and the anchor hole 41ba do not contact each other, whereas when the upper floor 11 is about to move in the longitudinal direction (rail direction) at the time of collision, the anchor pin 46 strikes the anchor hole 41ba, restraining the movement of the upper floor 11.
  • the anchor pin 46 may also be used as the bolt 17 ( FIG. 6 ) fixing the legs 6a of the seats 6.
  • the above embodiments are examples and the configurations of the invention are not limited to these.
  • the cases where the horizontal pieces 15a, 22a, 43a of the support members 15, 22, 43 are bonded to the top surfaces of the vibration-proof rubbers 10, 21, 42 are described.
  • the horizontal pieces 15a, 22a, 43a of the support members 15, 22, 43 may be fixed to the bottom surface of the upper floor 11, and the positional relations between the protruding parts 20, 41 of the underframe 2, 40 and the support members 15, 22, 43 may be formed as described above.
  • the seats 6 may be directly fixed to the upper floor 11 without providing the fixture rail 12.
  • the vibration-proof rubbers 10, 21, 42, 45 are used as elastic members which elastically support the upper floor 11 are described.
  • the invention is not limited to these, and elastic members other than rubber, such as a spring or hard sponge, for example, can be broadly used as such elastic members.
  • the protruding parts 15d, 20c, 22d, 41c, 43d, 44d are extruded integrally with the underframes 2, 40 are described.
  • the protruding parts 15d, 20c, 22d, 41c, 43d, 44d may be formed separately from the underframes 2, 40 and the protruding parts 15d, 20c, 22d, 41c, 43d, 44d may be fixed to the underframes 2, 40 by screwing or welding, or the like.
  • extruding the protruding parts 15d, 20c, 22d, 41c, 43d, 44d integrally with the underframes 2, 40 can increase the strength of the protruding parts 15d, 20c, 22d, 41c, 43d, 44d in the direction of tension (upward direction).
  • the protruding parts 20, 41, 44 and the support members 15, 22, 43 are configured as described above with reference to FIG. 2 , FIG. 3 or FIG. 6 are described.
  • the invention is not limited to these.
  • various configurations other than the configurations described above with reference to FIG. 2 , FIG. 3 or FIG. 6 can be broadly applied as the configurations of these support members and protruding parts.
  • the invention is not limited to this. Also in the underframe 40 according to the second embodiment, a vertical rib connecting the face plate 40a and the face plate 40b below the vertical piece 41a of the protruding part 41 may be similarly provided according to need.
  • the invention is not limited to this and such a structure for restraining the movement in the longitudinal direction of the upper floor 11 may also be applied to the vibration-proof support structure according to the first embodiment.
  • the invention can be broadly applied to railway vehicles having various configurations in which an upper floor forming the floor is laid down on the top surface side of an underframe.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Vibration Prevention Devices (AREA)
EP13893466.6A 2013-09-12 2013-09-12 Véhicule ferroviaire Active EP3045371B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18180975.7A EP3421318B1 (fr) 2013-09-12 2013-09-12 Véhicule ferroviaire

Applications Claiming Priority (1)

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PCT/JP2013/074702 WO2015037100A1 (fr) 2013-09-12 2013-09-12 Véhicule ferroviaire

Related Child Applications (2)

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EP18180975.7A Division EP3421318B1 (fr) 2013-09-12 2013-09-12 Véhicule ferroviaire
EP18180975.7A Division-Into EP3421318B1 (fr) 2013-09-12 2013-09-12 Véhicule ferroviaire

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EP3045371A1 true EP3045371A1 (fr) 2016-07-20
EP3045371A4 EP3045371A4 (fr) 2017-04-26
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Also Published As

Publication number Publication date
JP6082470B2 (ja) 2017-02-15
EP3045371A4 (fr) 2017-04-26
EP3421318B1 (fr) 2019-07-24
WO2015037100A1 (fr) 2015-03-19
EP3045371B1 (fr) 2018-08-15
JPWO2015037100A1 (ja) 2017-03-02
EP3421318A1 (fr) 2019-01-02

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