Patent ID: 8567857

Claim:
A vehicle-body lower structure of a vehicle, comprising: a tunnel portion provided at a central portion, in a vehicle width direction, of a floor panel forming a bottom face of a vehicle compartment; a cross member provided between the tunnel portion and a connection portion of a center pillar to a side sill provided at a side portion of the vehicle compartment to extend in the vehicle width direction; and a connection member connecting an outside portion of the cross member and an inside wall face portion of the side sill, wherein said connection member includes a cross-member-side connection portion connected to said cross member and a side-sill-side connection portion connected to said side sill, said side-sill-side connection portion is configured to have a lower rigidity than said cross-member-side connection portion, and an outside end portion of said cross member is located at a specified position which is located on the outside of the cross-member-side connection portion and on the inside away from the inside wall face portion of the side sill; and said connection member is formed in a box shape having front and rear face portions connected respectively to front and rear face portions of said cross member and an upper face portion interconnecting upper end portions of the front and rear face portions of the connection member, at least one of said front and rear face portions of the connection member has an opening portion formed at the side-sill-side connection portion, said outside end portion of the cross member is located on the outside of said opening portion, and an actuator of a seatbelt device to protect a passenger seated in a seat for passenger is provided inside the connection member through said opening portion.