Patent ID: 7690161
Filing Date: 2010-04-06
Classification: B62D,F16B

Abstract:
1. An elongate structural member for a vehicle, comprising: a first elongate structural wall extending in a first plane; a second elongate structural wall connected to said first structural wall and extending in a second plane orthogonal to said first plane; a cavity extending longitudinally along said second elongate structural wall having an entranceway separating said second elongate structural wall into two elongate plates having two connected cavity walls forming said connection of said first and second structural walls, wherein said second structural wall has juxtaposed lip portions extending into said cavity entranceway; wherein said cavity walls do not extend parallel to either of said first or second structural walls; wherein the cross-section of said longitudinal cavity is mushroom-shaped; and also including a fastener, said fastener having a rounded head with a threaded shank extending therefrom, and a boss on said shank having at least two flat surfaces, said boss being positioned between said head and said threaded shank, wherein said boss flat surfaces abut juxtaposed faces of said juxtaposed lip portions of said second structural wall edges when said fastener head is seated upon said juxtaposed lip portions; and wherein said cavity walls each meet at a rounded, radius corner; wherein said cavity walls form a rounded mushroom-shaped dome on said cavity.