Patent ID: 7296853

Claim:
Chair comprising: a fixed base structure comprising two front legs and two rear legs mutually connected by a cross member, in which the front legs and the rear legs are mutually offset in such a way that the front legs of a first chair can be inserted between the rear legs of a second chair identical to the first, and a seat-backrest assembly borne by the support structure, wherein the seat-backrest assembly is rotatable around said cross member between a position of use and a position of stowage, in which in the position of stowage the seat-backrest assembly is rotated forwards relative to the position of use, said seat-backrest assembly comprises two support flanges each of which bears an articulation element that rotatably engages the cross member and each support flange bears a respective locking cursor elastically thrust towards a locking position, wherein the seat-backrest assembly further comprising an unlocking lever able to be operated manually to bring said cursors towards an unlocking position.