Railway car body structures
AssigneeHitachi, Ltd.
InventorsMichifumi Takeichi, Sumio Okuno, Masato Okazaki, Morishige Hattori
Life of this patent
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Abstract
A railway car body structure has a panel assembly forming at least part of a side, the roof, an end or the floorplate. Each panel has inner and outer spaced metal sheets and a cellular metal core bonded to the sheets and maintaining them spaced apart. To join the panels, a metal connecting member is joined to at least one of the inner and outer sheets by continuous metal-to-metal bonding and has a projection for use in welding the panel to the neighboring panel. The projection extends in the lateral direction of the panel and is of material thicker than the general sheet thickness of the sheets. A frame member of the body structure may be welded to the panels at the joint.
Claims23
A structural panel for a passenger car body structure, for forming at least part of one of a side, a roof, an end and a floorplate of the body structure, said panel comprising inner and outer spaced metal sheets, a cellular metal core brazed to said inner and outer sheets and maintaining said inner and outer sheets spaced apart, wherein said core has a honeycomb structure having parallel cells whose axial direction is perpendicular to said inner and outer sheets and, at at least one edge of said panel, a metal connecting member having a first portion substantially perpendicular to one of said inner and outer sheets and joined to said core, and having a second portion adjacent to and substantially parallel to said one of said inner and outer sheets, wherein said second portion extends away from said core to provide an end portion for welding said panel to an adjacent panel such that the weld is separated from the brazing of said core to said one of said inner and outer sheets.
A passenger car body structure having two opposite sides, a roof, two ends and a floorplate,
- and including a panel assembly comprising at least two adjacent structural panels welded edge-to-edge to each other at a mutual joint and forming at least a part of one of said sides, roof, ends and floorplate,
- each said panel comprising inner and outer metal sheets and a cellular metal core brazed to said inner and outer sheets and maintaining the said sheets spaced apart, wherein said core has a honeycomb structure having parallel cells whose axial direction is perpendicular to said inner and outer sheets,
- at least one of said joined panels including at said joint thereof a connecting member having a first portion substantially perpendicular to one of said inner and outer sheets and joined to said core, and having a second portion adjacent to and substantially parallel to said one of said inner and outer sheets, wherein said second portion extends away from said core to provide and end portion for welding said panel to an adjacent panel such that the weld is separated from the brazing of said core to said one of said inner and outer sheets.
Dependencies are inferred from the claim text.