Patent ID: 6923503

Claim:
A chair having a seat and a backrest, a structure supporting the seat, and a base, wherein said support structure has two lateral uprights and at least one projecting element provided with a substantially longitudinal guide, in that said backrest is associated with two angular element, each of said angular elements having a first end connected to said backrest, a central part connected rotatably by means of a first hinging pin to a top end of one of said uprights of said structure supporting the seat and a second end connected to said seat by means of a second hinging pin, said seat being connected to said support structure also by means of a telescopic rod which can be shortened and lengthened in a resilient manner, and an element slidably engaged in said guide of said projecting element so that a backwards rotation of said backrest about the first hinging pins causes forwards sliding of said seat and vice versa.