Abstract: A cab roof structure, a cab and a rail train are described. The cab roof structure comprises: at least one roof connecting beam disposed on a roof carline; and at least two aluminum honeycomb panels, one roof connecting beam is disposed between every two aluminum honeycomb panels, and each aluminum honeycomb panel is fixedly connected to a left or right side of the roof connecting beam. The cab roof structure has the advantages of high structural strength, light weight, less welding and good manufacturability.

Abstract: A composite aluminum plate assembly comprises at least two aluminum honeycomb profile units; each aluminum honeycomb profile unit comprises a support component, an interlayer aluminum honeycomb, a first aluminum plate and a second aluminum plate, the interlayer aluminum honeycomb being filled between the first aluminum plate and the second aluminum plate; an extension section is provided on an abutting side of at least one of two sides of aluminum plates of the aluminum honeycomb profile unit, the extension section extending to the exterior of the interlayer aluminum honeycomb at the same side; the strength of the support component is greater than that of the interlayer aluminum honeycomb, and extension sections of two adjacent aluminum honeycomb profile units are assembled to each other and connected and fixed by means of the support component.

Abstract: A bone structure of a railcar includes: a pair of first lateral bones arranged at an inner side of a wainscot panel in a car width direction and extending in a car longitudinal direction, the first lateral bones being joined to the wainscot panel; and a side post arranged at an inner side of a pier panel in the car width direction and extending in a car upper-lower direction, the side post intersecting with the first lateral bones, wherein the side post includes: at least one first flange portion joined to the pier panel; a pair of cutout portions located at positions corresponding to the wainscot panel, the first lateral bones passing through the respective cutout portions in the car longitudinal direction; and at least one second flange portion arranged between the first lateral bones and joined to the wainscot panel.

Abstract: A disclosed component for a motor vehicle includes a component main body, with at least one reinforcing element integrated in a component matrix of the component main body. The at least one reinforcing element may be fastened to the component main body. The component for a motor vehicle has a high component stability, is able to be manufactured with relatively low production costs and enables integration of functional components. The component includes the reinforcing element as a band with a plastics matrix and embedded unidirectionally oriented continuous fibers. A method for manufacturing such a component is also disclosed.

Abstract: The present disclosure relates to a chassis (300) for a vehicle, the chassis (300) comprising a plurality of sandwich plate elements (100) and a plurality of connection elements (200), wherein the sandwich plate elements (100) each comprise a plate core (150) and a first and second plate skin (110, 120) and wherein each connection element (200) comprises two or more recesses (210, 220), each recess (210, 220) being adapted to receive an edge portion (160) of one of the plurality of sandwich plate elements (100) such that at least a portion of the sandwich plate element (100) interacts with the recess (210, 220), thereby connecting said plurality of sandwich plate elements (100) to form said chassis (300). The disclosure also relates to a vehicle comprising a chassis (300), a method for forming a chassis (300) and a kit of parts for assembling a chassis (300).

Abstract: A car body for a passenger rail vehicle includes a chassis having a front assembly at each vehicle end and a vehicle floor consisting of profiled metal sheet edged in a trapezoidal-like manner within the cross-section, wherein beads of the profiled metal sheet extend in a longitudinal direction of the car body, where the vehicle floor is fixedly connected to each front assembly at transition points to the front assembly via a connecting beam oriented transversely to the longitudinal direction of the car body, where the connecting beam is formed as a profiled metal sheet having a substantially L-shaped cross-section, and where the section of the connecting beam connected to a front assembly is equipped with a trapezoidal-like bead.

Abstract: A secondary suspension system for a railcar comprises a chassis, a primary spring, a levelling actuator, a first hydraulic circuit and a secondary spring. The levelling actuator is adapted to be connected to the carbody. A piston shoulder, located at the lower portion of the piston and below an opening in the chassis, reaches farther than the opening so as to be capable of catching the chassis. The secondary spring is at least partially positioned underneath the piston shoulder. The piston is operative to adopt a high position inside the body under a pressure of a hydraulic fluid injected in a lower chamber below a piston head. This makes the piston shoulder abut against the chassis, thereby compressing the primary spring between the body and the chassis without compressing the secondary suspension.

Abstract: The present disclosure relates to a front door to be provided on an end panel of an end portion of a railcar. The front door includes a hinge provided at a first vertical side portion on the front door, the hinge supporting the front door rotatably toward the car interior side, a lock mechanism provided at a second vertical side portion on the front door, the lock mechanism locking the front door, and an emergency support mechanism that holds the front door on the end panel upon collision of an object with the front door in a locked state.

Abstract: A railcar includes a side sliding door and entrance peripheral-member surrounding the side entrance. The entrance peripheral-member includes a door pocket post in which outer and inner portions are inwardly of the outer portion in car-width direction coupled to each other. The side sliding door peripheral portion is pressed against an edge portion, extending along the side entrance of the entrance peripheral-member via a rubber seal at the side entrance closed state. In the side entrance open state, the side sliding door is pulled into a door pocket space facing the door pocket post inner portion. A portion projecting inwardly in car-width direction beyond the inner portion and including a tip end contacting the rubber seal provided at at least part of region constituted by portions of upper and lower edges of the side entrance peripheral-member and lateral edge at the edge portion door pocket post side of the entrance peripheral-member.

Abstract: A vehicle includes a body, an inner cover disposed in the body and a textile channel conducting conditioned air, extending between the body and the inner cover and being made of a textile fabric. In order to provide such a vehicle having a textile channel that is easy to install, the textile channel is provided on the body and held against the inner cover by a hook and loop fastener.

Abstract: In the interior equipment installation structure for a railcar according to the present invention, a first installation member is mounted to a roof body shell along the car longitudinal direction or the car width direction. Second installation members are attached to the first installation member using mechanical fastening tools such as bolts with the positions of the second installation members adjusted in the up-down direction of the car. The second installation members are used for installing lighting appliances such as fluorescent lights, each has a size corresponding to each of the lighting appliances, and are continuously installed. There are portions in which plate members are overlapped with each other between respective adjacent ones of the second installation members, and hand strap receivers are installed in these portions.

Abstract: Provided is a floor structure of a railcar in which thickness of a heat insulating material can be reduced while having predetermined heat resistance. The floor structure of the railcar includes a underframe having a pair of side sills extending in a railcar longitudinal direction and a cross beam arranged between the side sills and extending in a railcar width direction, a structural floor provided on an upper surface of the underframe, and a first heat insulating material arranged on a lower side of the structural floor via an air layer for the structural floor.

Abstract: A rail vehicle for passenger transport. The rail vehicle has at least one carriage with a trough-shaped inner floor section.

Abstract: A railcar includes a side sliding door and entrance peripheral-member surrounding the side entrance. The entrance peripheral-member includes a door pocket post in which outer and inner portions are inwardly of the outer portion in car-width direction coupled to each other. The side sliding door peripheral portion is pressed against an edge portion, extending along the side entrance of the entrance peripheral-member via a rubber seal at the side entrance closed state. In the side entrance open state, the side sliding door is pulled into a door pocket space facing the door pocket post inner portion. A portion projecting inwardly in car-width direction beyond the inner portion and including a tip end contacting the rubber seal provided at at least part of region constituted by portions of upper and lower edges of the side entrance peripheral-member and lateral edge at the edge portion door pocket post side of the entrance peripheral-member.

Abstract: A door unit for rail vehicles includes one or two sliding doors, means for supporting and guiding each sliding door between a closed position and an open position, and means for controlling the movement of each door between a closed position and an open position. The supporting, guiding and controlling means are carried on a support unit which defines an independent module with the doors, assembled prior to being mounted on the vehicle structure. The support unit includes at least one frame connectable to the vehicle structure and supporting each door, and the respective guiding and controlling means. The frame includes an upper cross-member, a lower cross-member and two uprights connecting these cross-members between them, in such a way to form a perimeter frame that defines a doorway, and which surrounds the four sides of the door or doors, when they are in the closed position.

Abstract: Provided is a railway vehicle having a configuration which can sufficiently protect the cabin even when large external force is applied to the end structures thereof. The vehicle body of the railway vehicle is formed by joining an underframe 20, side structures 30, end structures 50, and a roof structure 60 together. An upper reinforcement beam 56 in the railroad tie direction is disposed at the upper portion of the end structure. A plurality of post reinforcement members are disposed in the vertical direction so as to stand on an end beam 26 of the underframe. The post reinforcement members and the upper reinforcement beam are respectively connected by an end post in the vertical direction disposed at an intermediate portion in the end structure width direction and corner posts 54 in the vertical direction disposed at both end portions in the end structure width direction.

Abstract: A reinforced longitudinal beam for railway vehicles includes a first partial beam and a second partial beam. The first partial beam is connected to a second assembly of the railway vehicle and the second partial beam is connected to a first assembly of the railway vehicle. Particular surfaces are provided on the first partial beam for forming a welded connection to the second partial beam, and particular surfaces are provided on the second partial beam for forming a welded connection to the first partial beam, wherein one of the partial beams comprises an end facing.

Abstract: Provided is a railway vehicle having a configuration which can sufficiently protect the cabin even when large external force is applied to the side structures and the end structures thereof. The vehicle body of the railway vehicle is formed by joining an underframe 20, side structures 30, end structures 50, and a roof structure 60 together. The lower inner face of the side post 31 of the side structure is joined to the outer face portion of a side beam 21 of the underframe. The lower inner faces of the post reinforcement members (an end post reinforcement member 57 and a corner post reinforcement member 58) for reinforcing the post members (an end post 53 and a corner post 54) of the end structure are joined to the outer face portion of an end beam 26 of the underframe.

Abstract: The present invention is a bodyshell structure of a railcar, the bodyshell structure including: a side bodyshell including an outside plate portion, an inside plate portion, and a joint portion configured to join the outside plate portion and the inside plate portion; an inside window opening formed on the inside plate portion and provided inside the railcar; and an outside window opening formed on the outside plate portion and having a smaller opening area than the inside window opening, and at least one of the inside window opening and the outside window opening has an oval shape extending in the railcar longitudinal direction or a circular shape.

Abstract: In the interior equipment installation structure for a railcar according to the present invention, a first installation member is mounted to a roof body shell along the car longitudinal direction or the car width direction. Second installation members are attached to the first installation member using mechanical fastening tools such as bolts with the positions of the second installation members adjusted in the up-down direction of the car. The second installation members are used for installing lighting appliances such as fluorescent lights, each has a size corresponding to each of the lighting appliances, and are continuously installed. There are portions in which plate members are overlapped with each other between respective adjacent ones of the second installation members, and hand strap receivers are installed in these portions.

Abstract: An underframe structure of a railcar capable of reducing a deformation amount of a cross beam supporting an underfloor equipment upon underfloor fire. The underframe structure of the railcar includes an underframe having a pair of side sills extending in a railcar longitudinal direction and a cross beam arranged between the side sills and extending in a railcar width direction, a structural floor provided on an upper surface of the underframe, and an underfloor equipment suspended down in a center part in the railcar width direction of the cross beam. The underframe structure includes a passenger cabin floor provided on an upper side of the structural floor, the passenger cabin floor forming a lower surface of a passenger cabin S, and floor receiving members supporting the passenger cabin floor and extending in the railcar longitudinal direction between the structural floor and the passenger cabin floor.

Abstract: The present invention is a bodyshell structure of a railcar, the bodyshell structure including a plurality of side window opening portions formed on a side bodyshell along a railcar longitudinal direction, and the side window opening portions include a plurality of large window opening portions arranged on a railcar-longitudinal-direction center portion of the side bodyshell and a plurality of small window opening portions arranged on both railcar-longitudinal-direction sides of the large window opening portions and each having a smaller opening area than the large window opening portion.

Abstract: A method for reinforcing a railcar bodyshell according to the present invention includes the steps of: in a bodyshell including a metal frame and a metal plate joined to the frame and formed such that a cross section orthogonal to a railcar longitudinal direction has a wave shape, disposing a fiber sheet on at least a part of the plate; and forming a fiber reinforced resin member by bonding the fiber sheet to the part of the plate by an impregnated adhesive resin.

Abstract: An interior structure is provided that is lightweight and is capable of beautifully finishing a surface on a cabin side. An interior structure 100 of the present invention includes a plurality of interior panels 1 forming the inner walls of a cabin and a support means 5 for supporting the interior panel 1. The interior panel 1 has a composite plate 4 including two metal plates 2 and a non-foam resin layer 3 disposed between the two metal plates 2.

Abstract: To adequately maintain recyclability of a railcar bodyshell while improving the appearance, manufacturing accuracy, and producibility of the railcar bodyshell. A railcar bodyshell includes: a metal side outside plate 2 having openings 2b to 2d; a plurality of metal horizontal frame members 3 joined to an inner surface of the side outside plate 2 and extending in a railcar front-rear direction; a plurality of metal vertical frame members 4 joined to the inner surface of the side outside plate 2 and extending in a railcar upper-lower direction; and carbon fiber reinforced resin members 5A to 5D each joined to a predetermined portion on the inner surface of the side outside plate 2, the predetermined portion including a corner portion of each of peripheral portions 2f to 2h respectively defining openings 2b to 2d or a part of a portion between the vertical frame members 4.

Abstract: To join vertically and horizontally arranged frame members to the interior face of an outer panel, the horizontal frame members are disposed on the outer panel so as to take precedence over the vertical frame members and are weld-joined to the outer panel. The vertical frame members are placed on the horizontal frame members from the interior side and are weld-joined to the horizontal frame members. The vertical frame member includes a standard-width frame member and a wide-width frame member having a width greater than the width of the standard-width frame member. The vertical frame members are joined to and in contact with the outer panel at a reduced number of points, so that the appearance of the outer panel is maintained in a good condition. With this configuration, a low cost vertical and horizontal frame structure is achieved, which has sufficiently high joint strength that provides the required strength of the outer panel.

Abstract: A passenger rail car includes a lower passenger compartment that includes a plurality of passenger seats. The passenger rail car also includes an upper passenger compartment that includes a plurality of passenger seats. A control cab for a rail car operator is elevated above the floor of the lower passenger compartment, and is located forward of the passenger seats and behind the crash energy management region. The front end of the passenger rail car may be slanted to provide a greater field of view for the rail car operator.

Abstract: A modular wet room for rail vehicles is provided. The wet room includes floor elements, wall elements and ceiling elements composed of core composite material and connected among each other using connection profiles. Supply and discharge lines run along reinforcement profiles integrated into the panels. Further, a panel and a corner profile are provided.

Abstract: An embodiment of the present invention discloses a kit for a body-shell structure of a rail vehicle, including a carrier structure with at least two upper belts and a plurality of roof cross members for the roof region of the space frame, at least two lower belts and a plurality of bottom cross members for a bottom region of the body, a plurality of columns running perpendicular and a plurality of window belts for side regions of the body. An embodiment of the present invention further includes at least one head module, wherein the shell structure has a modular design. The upper belts and the lower belts are connected via knots to adjoining cross members, perpendicular columns and/or window belts, wherein the upper belts and the lower belts have a uniform profile cross-section and the knots are at least partially of uniform design.

Abstract: A body frame structure having practically sufficient strength is provided. The body frame structure has a simple structure that can be obtained by simple joining operation. Vertically and horizontally arranged first and second frame members are weld-joined to an outer panel with an end portion of the second frame member facing a side surface of the first frame member. The first frame member is placed in a straddling manner on the outer panel and the end portion of the second frame member weld-joined to the outer panel and is weld-joined to both the second frame member and the outer panel. In this manner, even when the vertically and horizontally arranged first and second frame members are laser-welded to the outer panel, the joint strength can be improved without using a joint plate.

Abstract: To join vertically and horizontally arranged frame members to the interior face of an outer panel, the horizontal frame members are disposed on the outer panel so as to take precedence over the vertical frame members and are weld-joined to the outer panel. The vertical frame members are placed on the horizontal frame members from the interior side and are weld-joined to the horizontal frame members. The vertical frame member includes a standard-width frame member and a wide-width frame member having a width greater than the width of the standard-width frame member. The vertical frame members are joined to and in contact with the outer panel at a reduced number points, so that the appearance of the outer panel is maintained in a good condition. With this configuration, a low cost vertical and horizontal frame structure is achieved, which has sufficiently high joint strength that provides the required strength of the outer panel.

Abstract: A weld-joining structure between an outer panel and an attachment is achieved, which is advantageous in terms of appearance, workability, and cost. To weld-join the outer panel and the attachments including, such as frame members and opening frames and opening frame members, which is a reinforcement or an interior or exterior member for use in the outer panel, the outer panel and the attachment placed on the outer panel are weld-joined by laser welding at overlapping portions of the outer panel and the attachment. The laser welding is performed along a polishing mark formed in one direction on an externally exposed-side surface of the outer panel and the attachment.

Abstract: A passenger rail car includes a lower passenger compartment that includes a plurality of passenger seats. The passenger rail car also includes an upper passenger compartment that includes a plurality of passenger seats. A control cab for a rail car operator is elevated above the floor of the lower passenger compartment, and is located forward of the passenger seats and behind the crash energy management region. The front end of the passenger rail car may be slanted to provide a greater field of view for the rail car operator.

Abstract: An internal ceiling cladding for a large vehicle for passenger transport, in particular, a rail vehicle, includes a cladding element, arranged in the vicinity of a door drive and arched elements adjacent thereto. The cladding element is provided as base module and includes a surface on the side thereof facing the vehicle longitudinal centre for the exact matching up of a further cladding element.

Abstract: Face plates 11 and 12 of a hollow shape member 10 are abutted against face plates 21 and 22 of a hollow shape member 20. Grooves 18 formed to said face plates 11 and 12 at the abutted region receive projections 28 formed to said face plates 21 and 22. A connecting plate 14 orthogonal to said face plates 11 and 12 is provided to the hollow shape member 10. There is no connecting plate orthogonal to face plates 21 and 22 disposed on the end of the hollow shape member 20. Friction stir welding heat causes the face plate 21 (22) to move toward the thickness direction of hollow shape members 10 and 20, but such movement is suppressed by the groove 18 and projection 28. Thereby, the abutted region is welded flatly. Since the hollow shape member 20 requires no connecting plate corresponding to plate 14, the welded members are light in weight.

Abstract: A roof bow for a vehicle, comprising a vertical face, a curved top flange extending in a first direction, and a straight bottom flange extending in the first direction. Preferably, the roof bow is monolithic with a plurality of apertures in the vertical face that provide clearance for ductwork, wiring, etc. Additionally, the roof bow may comprise horizontally and vertically-extending indented embossments, and rolled embossments about the apertures. Side flanges may additionally extend in the first direction and attach to side walls of the vehicle via an angled connector.

Abstract: A composite box structure assembled on and securely attached to a railway car underframe to form a temperature controlled railway car or on insulated boxcar. The composite box structure defined in part by an exterior metal surface, interior side stakes and at least one layer of fiber reinforced plastic attached to the side stakes. Foam insulation may be disposed between the side stakes, the exterior metal surface and the at least one layer of fiber reinforced plastic. The foam insulation provides improved resistance to heat transfer between the interior and the exterior of the composite box structure. An airflow management system may be incorporated into the composite box structure.

Abstract: A front end portion 100 is disposed on the front end of a car body. The floor thereof consists of extruded hollow members 210 that constitute a shock absorber 200. The shock absorber 200 is divided into an upper shock absorber 200 and a lower shock absorber 200. Annealed extruded hollow members are used to form the hollow member 210. The hollow members 210 are disposed so that their direction of extrusion corresponds to the longitudinal direction of the car body. The hollow members 210 are divided longitudinally into two portions by a plate 220. At the width-direction ends of member 210, the face plates 211 and 212 are welded onto plates 223-226. Upon receiving impact load, members 210 fold up into concertinas, absorbing the impact force. Since members 210 are separated by a plate, they deform evenly and continuously into concertinas instead of being bent in half, capable of absorbing a large energy.

Abstract: A side structure included in a railroad car is provided with an window opening, and door openings formed on the longitudinally opposite sides of the window opening, respectively. The side structure excluding parts corresponding to the window opening and the door openings are divided into a plurality of sections. A first section extends vertically between the window opening and the door opening, a second section extends vertically between the window opening and the door opening, and a third section of a width substantially equal to that of the window opening extends under the window opening. Each of the sections has a core attached to the inner surface of an outer panel, and rim members having a substantially Z-shaped cross section and surround the core. An inner panel is attached to the core and the rim members so as to cover the inner surface of the core.

Abstract: A fiberglass railcar roof that includes a fiberglass surface with a central portion and a peripheral portion adapted to be joined to the upper edge region of a railcar. In some embodiments, the roof includes plural elongate fiberglass ribs extending transverse to the longitudinal axis of the fiberglass surface. In some embodiments, the roof is adapted for use on refrigerated, high cube and cryogenic railcars. Methods for forming the invented roofs and roof panels are also disclosed.

Abstract: A framework of a vehicle superstructure, in particular for rail or road bound vehicles for passenger transport, having a side-wall structure containing an inner side facing the interior of the vehicle superstructure and an outer side facing outwards and longitudinal sections (1) and vertical sections (101) forming cross-like connecting places, whereby at one, several or all cross-like connecting places made between longitudinal sections (1) and vertical sections (101), the longitudinal section (1) is continuous and crosses behind the vertical section (101) on the inside at least in part and is releasably attached to the vertical section (101). For the purpose of releasable connection of the longitudinal section (1) to the vertical section (101), the longitudinal section (1) contains at least one undercut longitudinal groove (2) which runs in the longitudinal direction and crosses behind the vertical section (101).

Abstract: The invention relates to a railway vehicle with a self-supporting car body having a floor and a roof as well as side walls which present windows and access areas. The side walls are each made of a frame which is rigidly connected to the floor and presents side wall elements. The car body skin elements are configured in a supporting manner and fixed to frame elements (2) by friction so as to form a ribbed plate support structure (1, 8). The car body skin elements comprise an integrated intermediate layer (5) having vibration-damping properties. Frictional adhesive joints (7) or frictional screw or rivet joints (9) between the frame elements (2) and supporting car body skin elements can be provided for.

Abstract: A vehicle frame system structure having one or more wholly or substantially vertical pillars, and one or more wholly or substantially horizontal inter-connected struts, wherein the bottom section of at least one of the vertical pillars is separable from the remaining section of that pillar is described. By having separable bottom sections, the bottom sections of such pillars, which are the sections of pillars which are most commonly damaged and need repair, can be quickly and easily replaced. The need for major surgery to the whole frame structure is therefore avoided.

Abstract: A powered operator assembly for moving an object along a linear axis and particularly for moving doors in a mass transit vehicle utilizing a helical drive member for moving and supporting an attached door panel. The helical drive engages a drive nut that is connected to one of the two door panel hanger assemblies. Each door panel hanger assembly is attached to the door panel and includes at least two rollers which engage the outer surface of a helical drive for motion along the drive axis. One end of such helical drive is connected to an electric prime mover with such prime mover mounted to a stationary bracket mounted to the door opening structure. The second end of the helical drive engages a bearing mounted to a stationary bracket mounted to the door opening structure.

Abstract: A car body, in which a hollow shape stock composed of two face plates and ribs joining the face plates together is used to form a side body, and stresses are reduced while minimizing an increase in mass. A car body, comprising a hollow shape stock composed of two face plates (31, 31) and ribs (32) joining the face plates together and used to form a side body (11), wherein face plate portions (31c, 31d) in regions (B, D) above and below connection points (c) between circular arcs, which constitute corner portions of a window (15), and vertical sides of the window (15) are greater in thickness than in the remaining regions (A, C, E). Stresses are most heavily concentrated in the regions (B, D). Therefore, it is possible to achieve reduction in mass and enhancement in strength together. Further, buckling preventive tools can be arranged in spaces in the regions (B, D) of the hollow shape stock.

Abstract: An improved door assembly having a single movable door and a separate movable high platform threshold.

Abstract: A mass transit vehicle system for improving the efficiency and flexibility in developing scalable mass transit systems. The mass transit vehicle system includes a drive unit for providing locomotive force for the system and includes steerable front wheels for facilitating turning the system and a motor for generating said locomotive force, a passenger section for carrying a plurality of passengers which is couplable to said drive unit and includes at least two wheels for facilitating moving the passenger section with the drive unit, and a mating section for facilitating coupling of the passenger section to the drive unit and providing an environmental barrier such that an interior of the passenger section and an interior of the drive unit are in environmental communication, but are protected from an external environment.

Abstract: The present invention aims to manufacture a car body with ease. A hollow material 10 comprises the lower portion of a side structure 201 of the car body. A face plate 11 of the hollow material 10 at the external side of the car has a lower end which projects further downward than a face plate 12 at the internal side of the car. The lower ends of the face plates 11, 12 are connected by a rib 13. The hollow portion thus formed is triangular in shape. A rib 14 above the rib 13 is formed horizontally. The face plates 11, 12 and a rib 15 positioned above the rib 14 are eliminated from the region of one or more doorways 220. The lower end of the doorway 220 of the side structure 201 is equipped with the hollow portion, so that it stays strong against transfer of the side structure. A hollow-shaped material 110, which comprises the end portion of an underframe 203, has an end portion in the width direction which forms a slope (rib 114) facing towards the upper side of the external side of the car.

Abstract: An improved door assembly having a single movable door and a separate movable high platform threshold.

Abstract: A car body, in which a hollow shape stock composed of two face plates and ribs joining the face plates together is used to form a side body, and stresses are reduced while minimizing an increase in mass. A car body, comprising a hollow shape stock composed of two face plates (31, 31) and ribs (32) joining the face plates together and used to form a side body (11), wherein face plate portions (31c, 31d) in regions (B, D) above and below connection points (c) between circular arcs, which constitute corner portions of a window (15), and vertical sides of the window (15) are greater in thickness than in the remaining regions (A, C, E). Stresses are most heavily concentrated in the regions (B, D). Therefore, it is possible to achieve reduction in mass and enhancement in strength together. Further, buckling preventive tools can be arranged in spaces in the regions (B, D) of the hollow shape stock.