A heating floor panel unit of a railcar includes: a heater-equipped floor panel; a first flange horizontally projecting from one end of the floor panel in a car longitudinal direction and fixed to a carbody by a fastening member; and a second flange horizontally projecting from the other end of the floor panel in the car longitudinal direction and fixed to the carbody by a fastening member. The first flange and the second flange are located at such a height that upper ends of the fastening members are located below an upper surface of the heater-equipped floor panel. The first flange, as viewed from above, is located in such a manner that a position of the first flange in a direction orthogonal to a direction in which the first flange projects does not overlap a position of the second flange in the orthogonal direction.

A heating floor panel unit of a railcar includes: a heater-equipped floor panel; a first flange horizontally projecting from one end of the floor panel in a car longitudinal direction and fixed to a carbody by a fastening member; and a second flange horizontally projecting from the other end of the floor panel in the car longitudinal direction and fixed to the carbody by a fastening member. The first flange and the second flange are located at such a height that upper ends of the fastening members are located below an upper surface of the heater-equipped floor panel. The first flange, as viewed from above, is located in such a manner that a position of the first flange in a direction orthogonal to a direction in which the first flange projects does not overlap a position of the second flange in the orthogonal direction.

A tread strip for a vehicle is formed of at least two parts, an inner part and an outer part. The inner part is configured for attachment to the vehicle and/or to an outer part. The outer part is configured for attachment to the inner part and/or the vehicle. The outer part further includes an intermediate portion extending along a longitudinal axis between two attachment portions, the two attachment portions being configured for attachment to the inner part. The inner part has an intermediate portion extending along the longitudinal axis between two end portions. The end portions are configured for attachment of the inner part to the vehicle and/or for attachment to the outer part. The tread strip may be mounted to a vehicle by attaching the inner part and then attaching the outer part to the inner part and/or sealing the inner part with respect to the vehicle.

A tread strip for a vehicle is formed of at least two parts, an inner part and an outer part. The inner part is configured for attachment to the vehicle and/or to an outer part. The outer part is configured for attachment to the inner part and/or the vehicle. The outer part further includes an intermediate portion extending along a longitudinal axis between two attachment portions, the two attachment portions being configured for attachment to the inner part. The inner part has an intermediate portion extending along the longitudinal axis between two end portions. The end portions are configured for attachment of the inner part to the vehicle and/or for attachment to the outer part. The tread strip may be mounted to a vehicle by attaching the inner part and then attaching the outer part to the inner part and/or sealing the inner part with respect to the vehicle.

A railway vehicle is provided, including: a floor, where an opening portion is provided on the floor, two wheel removal and mounting floor panels are disposed in the opening portion, a sub-opening portion is defined between the two wheel removal and mounting floor panels, a wheel is disposed at the sub-opening portion, a part of the wheel passes through the sub-opening portion and protrudes from an upper surface of the floor, the two wheel removal and mounting floor panels are respectively located on two sides of the wheel in a radial direction, and both the two wheel removal and mounting floor panels are detachably connected to the floor; and a wheel cover, covering an upper side of the wheel, and being connected to the two wheel removal and mounting floor panels.

A rail vehicle is provided, including: a floor, where an opening portion is formed in the floor, and the opening portion includes a wheel inspection opening and a wheel mounting opening; a wheel, disposed at the wheel mounting opening, where a part of the wheel passes through the wheel mounting opening and protrudes from an upper surface of the floor, and a wheel cover covers an upper side of the wheel; and an inspection floor panel, detachably connected to the wheel inspection opening, where the wheel inspection opening is located on one side of the wheel in a left-right direction of the rail vehicle.

A railroad vehicle fire-resistant floor structure with improved fire resistance against underfloor fires includes a mounting part for installing underfloor equipment on the lower surface of an underframe, and a fire-resistant member. The fire-resistant member is a fire-resistant coating applied to the lower surface of the underframe. The fire-resistant coating is preferably a foamable fire-resistant coating. A cover that covers an exposed portion exposed from the fire-resistant coating (foamable fire-resistant coating) is attached to the mounting part. The underfloor equipment is installed at the mounting part with a closing plate sandwiched therebetween.

A railroad vehicle fire-resistant floor structure with improved fire resistance against underfloor fires includes a mounting part for installing underfloor equipment on the lower surface of an underframe, and a fire-resistant member. The fire-resistant member is a fire-resistant coating applied to the lower surface of the underframe. The fire-resistant coating is preferably a foamable fire-resistant coating. A cover that covers an exposed portion exposed from the fire-resistant coating (foamable fire-resistant coating) is attached to the mounting part. The underfloor equipment is installed at the mounting part with a closing plate sandwiched therebetween.

A floor structure for a railway vehicle includes a composite panel. The panel includes a lower metal plate, an upper metal plate, and a layer of thermal insulating material arranged between the lower and upper metal plates. The layer of thermal insulating material includes a plate of wood or bark.

A floor structure for a railway vehicle includes a composite panel. The panel includes a lower metal plate, an upper metal plate, and a layer of thermal insulating material arranged between the lower and upper metal plates. The layer of thermal insulating material includes a plate of wood or bark.