Abstract: A multipurpose hall equipped with a set of beams supporting seats (1) bearing independent load-bearing units (3) equipped with a group of seats (4) which can be arranged in a stepped configuration or a flat configuration, characterized in that it comprises means for tilting the groups of seats (4) which for each of the load-bearing units (3) comprises at least one pantograph mechanism (9) comprising a fixed support (10) of one piece with the load-bearing beam (1) and a movable support (11) of one piece with the load-bearing unit (3) and the group of seats, as well as a control linkage whereby the group of seats (4) can be moved between a deployed position and a retracted position by rotation around the fixed support (10).

Abstract: A multipurpose hall equipped with a set of beams supporting seats (1) bearing independent load-bearing units (3) equipped with a group of seats (4) which can be arranged in a stepped configuration or a flat configuration, characterised in that it comprises means for tilting the groups of seats (4) which for each of the load-bearing units (3) comprises at least one pantograph mechanism (9) comprising a fixed support (10) of one piece with the load-bearing beam (1) and a movable support (11) of one piece with the load-bearing unit (3) and the group of seats, as well as a control linkage whereby the group of seats (4) can be moved between a deployed position and a retracted position by rotation around the fixed support (10).