Vehicle seat

A vehicle seat configured so as to accommodate at least two users, the vehicle seat comprising a transverse axis and a transversal direction, and comprising:

• a seating portion frame, intended to be connected to the floor of a vehicle, and comprising an intermediate portion,
• a first backrest which is pivotally hinged to the seating portion frame according to the transverse axis of the vehicle seat,
• a second backrest which is pivotally hinged to the seating portion frame according to the transverse axis of the vehicle seat,
• wherein the first backrest and the second backrest are connected to the seating portion frame via a common hinge, positioned in an intermediate zone of the seating portion frame, in the transversal direction of the vehicle seat, wherein said common hinge includes:
• a pivot pin of an axis coincident with the transverse axis of the vehicle seat, comprising at least one central portion having an outer peripheral wall, and two lateral portions:
• a first lateral portion a second lateral portion, the two lateral portions being positioned on either side of the central portion according to the axis of the pivot pin,
• a first housing arranged on the first backrest and receiving interiorly the first lateral portion of the pivot pin, by authorizing the rotation of the first backrest relative to the pivot pin about the axis of said pivot pin,
• a second housing arranged on the second backrest and receiving interiorly the second lateral portion of the pivot pin, by authorizing the rotation of the second backrest relative to the pivot pin about the axis of said pivot pin,
• a third housing, having an inner peripheral wall, arranged on the seating portion frame, and receiving interiorly the central portion of the pivot pin , by immobilizing the pivot pin relative to the seating portion frame, the inner peripheral wall of the third housing bearing, at least partially, against the outer peripheral wall of the central portion of the pivot pin,
• wherein the outer peripheral wall of the central portion of the pivot pin includes at least one rib configured to be elastically deformed according to a substantially radial direction of the pivot pin, so as to be constantly maintained bearing against the inner peripheral wall of the third housing.