Patent ID: 8480163

Claim:
A pillar structure of a vehicle, comprising: a pillar that includes a first weak portion and a second weak portion, wherein the second weak portion is located above the first weak portion, wherein: the strength of the first weak portion is lower than the strength of the second weak portion; the pillar includes an outer shell and a reinforcement member arranged in the outer shell; the reinforcement member connected to a rocker of the vehicle; the first weak portion and the second weak portion are respectively implemented by weakened portions in the reinforcement member; at least one of the first weak portion and the second weak portion includes a load input member that facilitates a load to be input to the at least one of the first weak portion and the second weak portion when an external force acts on the vehicle from an outer side in a vehicle width direction; and a strength of the load input member is higher than a strength of the reinforcement member and is lower than a bonding strength between the rocker and the reinforcement member.