FIELD: transport.
SUBSTANCE: invention relates to automotive industry. Proposed system comprises multiple crimps 21, 31 located side by side. Every of said crimps 21, 31 enters the extending part. Ends of appropriate crimp and extending part are connected together. Cutout (26, 26a, 36; 36a) is made in larger part of crimps 21, 31 from inside, approximately, at sidewall center or sidewall, ceiling or floor profile center, to extend as corrugated tunnel 30 at crimp vertex zone while walls of two adjacent crimps 21, 31 are interconnected in zone of said cutout (26, 26a, 36; 36a).
EFFECT: higher stiffness of corrugated element.
9 cl, 5 dwg
