Patent ID: 8770656

Claim:
A motor vehicle chassis comprising: two longitudinal members of U-shaped section which are covered and closed on a front part by two plates forming lateral floor reinforcements; and a rear central crossmember connecting the longitudinal members and flush in a region of the lateral floor reinforcements; the lateral reinforcements including an internal edge comprising a welding strip; the chassis further comprising a raised floor area forming both a seat and a housing for an energy storage tank, comprising a plate forming a seat-cushion support arranged above a raiser plate forming a transverse reinforcement and fixed by welding to the two lateral floor reinforcements, above a rear raiser part fixed by welding to the rear central crossmember and above two plates forming lateral raiser parts and each fixed by welding along one of the welding strips of a lateral reinforcement, the seat-cushion support part of the floor being fixed by welding to the two lateral raiser parts, to the rear raiser part and to the transverse reinforcement.