Abstract: The present disclosure relates to an adjusting device for a headrest of a vehicle seat, the adjusting device comprising: a backrest fastening for attaching to a backrest, a holding device with a vertical adjustment means for adjusting the headrest in vertical direction, a longitudinal adjusting means for adjusting the holding device in a longitudinal direction, the longitudinal adjusting means comprising a four-joint gear provided between the backrest fastening and the holding device, the four-joint gear comprising two guiding arms. Here, the longitudinal adjusting means comprises a spindle drive, the spindle drive being provided between the holding device and one of the guiding arms. The guiding arm is preferably a front guiding arm. A spindle of the spindle drive is preferably translationally displaceable and provided in an arc-shaped slot guiding of the guiding arm. Moreover, a vertical adjustment by a second spindle drive is provided.

Abstract: A rack of molded plastic having a series of notches open in a first direction, each notch having a certain width in a second direction perpendicular to the first direction. The notches are aligned in a third direction perpendicular to the first and second directions, and each notch is defined by a bottom and by first and second side walls extending in the first direction from the bottom to a mouth of the notch. A rib projects into each notch from the first side wall, and the bottom of the notch has a through-opening arranged in correspondence with the rib.

Abstract: A headrest assembly for a vehicle seat includes two pins each extending along an adjustment direction between a lower end and an upper end, each of the two pins having a mounting portion comprising the lower end and adapted to be fixed to a backrest of a seat, an adjustment portion comprising the upper end, and an intermediate portion between the mounting portion and the adjustment portion. The seat further includes a support structure adapted to support the head of a user, and an interface made of overmolded plastic and interconnecting the intermediate portions of the two pins.

Abstract: A headrest assembly for a vehicle seat includes two pins each extending along an adjustment direction between a lower end and an upper end, each of the two pins having a mounting portion comprising the lower end and adapted to be fixed to a backrest of a seat, an adjustment portion comprising the upper end, and an intermediate portion between the mounting portion and the adjustment portion. The seat further includes a support structure adapted to support the head of a user, and an interface made of overmolded plastic and interconnecting the intermediate portions of the two pins.

Abstract: A rack of molded plastic having a series of notches open in a first direction, each notch having a certain width in a second direction perpendicular to the first direction. The notches are aligned in a third direction perpendicular to the first and second directions, and each notch is defined by a bottom and by first and second side walls extending in the first direction from the bottom to a mouth of the notch. A rib projects into each notch from the first side wall, and the bottom of the notch has a through-opening arranged in correspondence with the rib.