Vehicle-body front structure

A vehicle-body front structure, comprising:

• a pair of right-and-left front side frames extending in a vehicle longitudinal direction at right and left sides of an engine room, projecting forward from a vehicle-compartment portion;
• a sub frame provided at a bottom portion of the engine room, the sub frame comprising a body portion which is comprised of right-and-left side portions and a front side portion and a pair of right-and-left tower portions, the right-and-left side portions constituting right-and-left attachment portions of right-and-left lower arms of a front-wheel suspension, the front side portion interconnecting the right-and-left side portions in a vehicle width direction, the pair of tower portions of the sub frame being provided to stand substantially vertically at right and left sides of the body portion and fastened to respective lower face portions of the pair of front side frames at respective upper end portions thereof, the right-and-left side portions of the body portion of the sub frame being fastened to a bottom portion forward of the vehicle-compartment portion at respective rear portions thereof;
• and
• a pair of right-and-left extension members operative to deform and absorb an impact at a vehicle frontal collision, in cooperation with the pair of front side frames,
• wherein said pair of extension members are configured to be joined to respective middle portions, in a height direction, of the pair of tower portions of said sub frame at respective rear end portions thereof, to project forward, bending outward, in the vehicle width direction, at a level below said pair of front side frames, and to be comprised of a pair of members having a closed cross section, respectively, and
• said respective rear end portions of the pair of extension members joined to the pair of tower portions of the sub frame are positioned so that a center line of a longitudinal direction of each of the pair of extension members at the rear end portion is located at an inward position, in the vehicle width direction, relative to a center line of a standing-vertical direction of each of said pair of tower portions of the sub frame.