TUNNEL WITH INTEGRATED SIDE REINFORCEMENTS Russian patent published in 2022 - IPC B62D25/20 

FIELD: transport engineering.

SUBSTANCE: inventions group relates to the field of transport engineering. The tunnel for an automobile vehicle contains a main part and a side reinforcement element. The main part contains a lower contour containing a rear lower contour, an anterior lower contour, an inflection area. The inflection region connects the anterior endpoint of the posterior lower contour to the posterior endpoint of the anterior lower contour. The side reinforcement element extends along a part of the lower contour of the main part of the tunnel and contains a groove that contains an inner longitudinal wall, an inner vertical wall, a lower longitudinal wall, an outer vertical wall, an outer longitudinal wall. Variants of the tunnel fabrication method include the steps of providing a blank, or a welded blank, or a rolled blank, and molding the blank into a tunnel by cold forming.

EFFECT: increased rigidity of the vehicle body.

18 cl, 7 dwg