Carbody of railcar
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsSatoru Akiyama, Jyoji Yamada, Shinichiro Hata, Yoshikazu Ohashi, Shinya Kimura
Life of this patent
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Abstract
A carbody of a railcar includes an underframe, a side bodyshell, and a roof bodyshell. At least one of the underframe, the side bodyshell, and the roof bodyshell includes: an outer plate portion facing a car outside; and a reinforced portion joined to an inside surface of the outer plate portion and forming at least one internal space between the reinforced portion and the outer plate portion. At least one sound absorbing hole communicating with the internal space is formed on the outer plate portion.
Claims18
A carbody of a railcar, the carbody comprising:
- an underframe;
- a side bodyshell;
- and
- a roof bodyshell,
- wherein:
- at least one of the underframe, the side bodyshell, and the roof bodyshell is entirely formed of a double skin bodyshell having a truss structure section, the double skin bodyshell including:
- an outer plate portion facing an outside of the railcar, and
- a reinforced portion connected to an inside surface of the outer plate portion such that at least one internal space is formed between the reinforced portion and the outer plate portion,
- the reinforced portion includes (i) an inner plate portion disposed at an inside of the railcar relative to the outer plate portion so as to be spaced apart from the outer plate portion, and (ii) a plurality of coupling rib portions coupled to the outer plate portion and the inner plate portion, the plurality of coupling rib portions forming a plurality of triangles in a truss shape together with the outer plate portion and the inner plate portion,
- at least one sound absorbing hole is formed at the outer plate portion, the at least one sound absorbing hole communicating with the at least one internal space, and
- upon the underframe being entirely formed of the double skin bodyshell, the underframe is configured to attach to underfloor devices at the outer plate portion.
A carbody of a railcar, the carbody comprising:
- an underframe;
- a side bodyshell;
- and
- a roof bodyshell,
- wherein:
- at least one of the underframe, the side bodyshell, and the roof bodyshell includes an outer plate portion facing a car outside, and a reinforced portion connected to an inside surface of the outer plate portion such that at least one internal space is formed between the reinforced portion and the outer plate portion;
- the reinforced portion includes:
- a head portion,
- a pair of leg portions extending from respective ends of the head portion toward the outer plate portion, and
- a pair of flange portions extending from the corresponding leg portions in respective directions opposite to each other and joined to the outer plate portion;
- and
- at least one sound absorbing hole is formed at the outer plate portion, the at least one sound absorbing hole communicating with the at least one internal space.
Dependencies are inferred from the claim text.