Adjustment device comprising an asymmetrically acting brake assembly and vehicle seat having such an adjustment device

An adjustment device for a vehicle seat, comprising

• an output element,
• a drive assembly for introducing a drive torque to be transferred to the output element into the adjustment device, and
• a brake assembly for locking the output element and absorbing, via at least two brake elements adjustably mounted in a brake housing of the brake assembly, forces applied to the output element on the output side,
• wherein, when a drive torque is introduced via the drive assembly, a locking, provided via the brake assembly, of the output element can be released and the output element can be rotated along a direction of rotation, and, in order to lock the output element, the brake elements are in a locking position, in which, when forces are applied on the output side via the output element and are acting along a direction of rotation, at least one of the brake elements bears frictionally against a brake surface of the brake housing,
• wherein a maximum braking torque counteracting an adjustment of the output element is provided via the brake assembly, which braking torque varies in magnitude according to the direction of rotation along which a force acting on the output element on the output side acts.