Patent ID: 6920996

Claim:
A top rail ( 1 ) for an insulated double-skinned freight container having foam insulation ( 15 ) between the skins ( 11 , 16 , 17 , 18 ), the rail forming a junction between an outer skin ( 11 ) of a side wall and an outer skin ( 18 ) of a roof panel of the container, the rail comprising a first web portion ( 2 ) for attachment to the outer skin of the side wall, an inwardly inclined second web portion ( 3 ) at a first obtuse angle ( 2 ) to the first portion and a third web portion ( 4 ) extending substantially perpendicular to the first web portion ( 2 ) for attachment to the outer skin ( 18 ) of the roof panel, the rail being adapted to be welded to at least one of the outer skin of the side panel and the outer skin of the roof panel, said third web portion ( 4 ) being inwardly inclined at a second obtuse angle (β) to the second web portion ( 3 ) and being provided with an inwardly extending return portion ( 5 ) at an edge of the third web portion ( 4 ) remote from the second web portion ( 3 ) for strengthening the top rail and embedded in and surrounded by the foam insulation between the inner and outer skins, wherein said outer skin of the roof panel ( 18 ) extends on and over said third web portion ( 4 ) said third web portion having a notch with a step against which said outer skin of said roof portion faces when placed in said notch on said third web portion.