US Patent 10974767 Vehicle side portion structure

Joining members 56 are provided that permit a rocker lower 22 moving toward a vehicle outer side at least along a direction of input of side collision load F when, at a time of a side collision of a vehicle 10, side collision load F′ that is greater than or equal to a set load that is set in advance is inputted to a rocker 16. Namely, in a case in which the side collision load F′ that is greater than or equal to the set load is transmitted from a battery pack 20 to the rocker 16, the rocker lower 22 moves toward the vehicle outer side. Therefore, reaction force that the battery pack 20 receives from the rocker 16 is reduced, and collision load that is inputted to the battery pack 20 side is decreased.