Floor structure of railcar

摘要

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.

主权项

1. A floor structure of a railcar comprising:
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; a first heat insulating material arranged on a lower side of the structural floor via an air layer for the structural floor; a first metal plate provided on a lower surface of the first heat insulating material, wherein the structural floor, the air layer for the structural floor, the first heat insulating material, and the first metal plate are arranged in order from a structural floor side to a lower side; a first plate member provided in an upper end part of the cross beam; and a first port member extending from an upper surface of the first metal plate toward the first plate member and connecting the first metal plate and the first plate member, wherein the first metal plate extends toward the cross beam on the lower side of the first plate member.