Patent ID: 7469966

Claim:
A chair having a folding seat that rotates about a fixed horizontal pivot axis between a substantially vertical rest position and a substantially horizontal use position, the chair being intended, in particular, to equip halls that receive the public, such as lecture theatres and/or show halls, the chair comprising at least an underframe having an essentially longitudinal axis and to which a backrest may be fixed, the underframe comprising at least a first stationary element for taking up vertical forces, the fixed horizontal pivot axis being fixed relative to the first stationary element and to the seat, said seat comprising a first part projecting forwards with respect to said fixed horizontal pivot axis, and a second part projecting towards said underframe, wherein said underframe contains a gas strut having a first end pivotably fixed to said second part of said seat and a second end pivotably fixed relative to the underframe, and the gas strut biases the folding seat toward the substantially vertical rest position.