Provided is a vehicle including the following: a vehicle body having side walls on both sides in a width direction that is perpendicular to the direction of travel, and having an expanded portion between the upper end and the lower end of the side wall, the expanded portion being expanded further outward in the width direction than the upper end and the lower end; and a seat provided in the vehicle body and having a seatback along the side wall and a seat surface that extends inward in the width direction of the vehicle body from the seatback, the portion of the rear surface of the seatback that faces the side wall and that protrudes the farthest towards the side wall being disposed in a position facing the expanded portion of an in-vehicle-side lateral surface of the side wall.

A connecting element for fastening connection pieces to fiber composite components made of at least one fiber layer and of matrix material is provided, the connecting element has a screw- or bolt-like shape, the connecting element includes a tip at one end thereof, which tip supports the penetration of the fiber layers of the fiber composite component in the dry or matrix-impregnated, unconsolidated state, and comprising a casing in the region that comes in contact with matrix material of the fiber composite component, but at least in the region that comes in contact with the reinforcing fibers of the fiber composite component.

A double-deck rail vehicle and a vehicle body thereof are provided. An underframe (11) of the vehicle body comprises a lower-layer underframe (111), end underframes (112, 115), sealing plates (114, 116), and side underframes (118, 119); wherein the lower-layer underframe is provided with an underframe middle beam (1111); the end underframe is fixedly connected to the underframe middle beam by means of reinforcement middle beams (113, 117); the sealing plate is fixedly connected between the end underframe and the lower-layer underframe; and the side underframe comprises side beams (1181, 1191) of the side underframe that are integrated, and the side underframe is fixedly connected to the end underframe by means of the side beams of the side underframe. The vehicle body supplements the reinforcement middle beams capable of increasing the connection strength between the end underframe and the lower-layer underframe, and uses the integrated side beams of the side underframe. Therefore, the structure strength, rigidity and compression-resistant performance of the vehicle body can be enhanced, so that the safety of the double-deck rail vehicle can be improved, and a problem that a related double-deck vehicle body does not satisfy the requirements of America strength standard can be solved.

A railcar frame includes a first side sheet assembly. The first side sheet assembly includes a first side sheet, a first top chord, and a first side sill. The first side sheet includes one or more truss structures formed within the first side sheet by removing a plurality of portions of the first side sheet according to a pattern. The first side sheet has a length along a first axis and a width along a second axis perpendicular to the first axis. The first top chord is welded to a top portion of the first side sheet along the first axis. The first side sill is welded to a bottom portion of the first side sheet along the first axis opposite the first top chord.

A half-round cargo container comprises a plurality of curved panels and has a longitudinal axis. Each curved panel has a cross-sectional profile in a plane perpendicular to the longitudinal axis, wherein the respective cross-sectional profiles of the curved panels have curved shapes with a common curvature. Adjacent pairs of the curved panels are joined at respective abutting longitudinal edges parallel to the longitudinal axis to form a semi-cylindrical shell. The half-round cargo container has a top opening.

Some embodiments of the present disclosure provide a chassis component of a railway vehicle, and a railway vehicle. The chassis component includes: two lower boundary beams, the two lower boundary beams being provided at an interval; and a cross beam component, the cross beam component being provided between the two lower boundary beams, wherein there are a plurality of cross beam components, and the plurality of cross beam components are provided along a length direction of each of the lower boundary beams at an interval, wherein at least one cross beam component includes a first cross beam and a second cross beam provided below the first cross beam in a height direction of the each of the lower boundary beams, the first cross beam and the second cross beam form a mounting cavity, and a part of a floor of a railway vehicle penetrates into the mounting cavity.

There is provided a hanger bolt which can reduce the burden of positioning work and which hardly corotates with a nut upon nut coupling.

A connecting hanger bolt according to an aspect of the present invention is a hanger bolt which is inserted into a hanging groove rail having an opening narrower than the outer diameter of a bolt head and extending in a hanging groove rail longitudinal direction and from which a device is hangable. The connecting hanger bolt includes: a plurality of bolts which move in the hanging groove rail longitudinal direction in the hanging groove rail and whose shaft portions pass through the opening; and a connecting member which connects the plurality of bolts to each other, and keeps an interval in the hanging groove rail longitudinal direction between the plurality of bolts adjacent to each other.

A side wall assembly and associated cantrail of a light mass transit vehicle, the side wall assembly may be lightweight, strong and safe and the inclusion of panels in the assembly is easily adaptable. The cantrail may be more lightweight than typical cantrails while maintaining suitable rigidity and strength required to support a roof, and associated items mounted on a roof, and securely connect to a side wall assembly of a light mass transit vehicle.

A large component for a rail vehicle includes a grid structure of bows and ribs, and paneling formed from the grid structure, where the ribs are formed as planar sheet metal parts that are butt-welded to the paneling, and the bows are configured as planar sheet metal parts that are butt-welded to the paneling, and where a C-rail is arranged on at least one of the bows.

A movable side wall and opening/closing mechanism for railroad boxcars, comprising a side wall assembly (1), an end-portion opening/closing mechanism (2), a hinged rod assembly (3), a lateral door central clamping device (4), a upper transmission shaft assembly (5), a lower transmission shaft assembly (6), a upper track assembly (7) and a lower track assembly (8); upon loading/unloading cargo, the movable side wall can be opened further, so as to allow multiple forklifts of any tonnage on the ground to load/unload cargo to/from any positions of a carriage; the hinged rod assembly (3) and the central clamping device (4) are provided to keep the movable side wall reliably closed in order to ensure security and self-locking during transportation.