Abstract: The invention relates to a bracket (20) of a vehicle seat connecting a backrest (12) to a seat portion (11), including a hinge (10) which includes a first flange (3) and a second flange (4) connected to one another by means of inner peripheral teeth (31), thus defining an interface plane (P) perpendicular to the hinging axis and passing through said inner peripheral teeth, a first framework (5) of the backrest connected to the first flange (3) via a first attachment (1), a second framework (6) of the seat portion connected to the second flange (4) via a second attachment (2), the first attachment and the second attachment (1, 2) being arranged on the same side relative to the interface plane (P), the attachments preferably being welds.

Abstract: A motor vehicle seat comprising an adjustable part, a fixed part, and an adjustable mechanism comprising a traveling wave piezoelectric motor having a rotor and a stator, the stator comprising two distinct power terminals connected to an electronic control unit adapted to operate according to three operating modes comprising: a locked operating mode in which the power terminals are not supplied power; a motorized operating mode in which two AC voltages are applied to the two power terminals; and a free operating mode in which an AC voltage is applied to one power terminal while the other is not supplied with power.

Abstract: The invention relates to a bracket (20) of a vehicle seat connecting a backrest (12) to a seat portion (11), including a hinge (10) which includes a first flange (3) and a second flange (4) connected to one another by means of inner peripheral teeth (31), thus defining an interface plane (P) perpendicular to the hinging axis and passing through said inner peripheral teeth, a first framework (5) of the backrest connected to the first flange (3) via a first attachment (1), a second framework (6) of the seat portion connected to the second flange (4) via a second attachment (2), the first attachment and the second attachment (1, 2) being arranged on the same side relative to the interface plane (P), the attachments preferably being welds.

Abstract: A motor vehicle seat comprising an adjustable part, a fixed part, and an adjustable mechanism comprising a traveling wave piezoelectric motor having a rotor and a stator, the stator comprising two distinct power terminals connected to an electronic control unit adapted to operate according to three operating modes comprising: a locked operating mode in which the power terminals are not supplied power; a motorized operating mode in which two AC voltages are applied to the two power terminals; and a free operating mode in which an AC voltage is applied to one power terminal while the other is not supplied with power.