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 headrest for a vehicle seat includes: a support surface for the head of an occupant; at least one lateral edge extending along an edge of the support surface; and a sound diffusion system arranged in a cavity in the edge and including a speaker configured to emit sound waves in front of the support surface and at least one passive radiator configured to emit low frequency sound waves in front of the support surface.

Abstract: A vehicle seat element lining comprises a cushioning comprising at least one first face intended to be oriented towards an occupant of the vehicle seat and a second face, opposite the first face, the cushioning having at least one hole opening on the first and/or the second face of the cushioning; at least one vibrating device disposed in a hole, each vibrating device comprising at least two first snap-fit reliefs; a plurality of distinct vibrating device brackets, each comprising a base, overmolded by the cushioning, and a second snap-fit relief, each vibrating device being fastened to at least two respective brackets, by snap-fitting the first and second snap-fit reliefs.

Abstract: A backrest of a vehicle seat comprises a backrest frame, a support plate fixed to the backrest frame, and at least one vibrating device. Each vibrating device is fixed to the support plate by means of at least one damping element. Preferably, each vibrating device is fixed on a face of the support plate opposite to the face intended to be oriented towards an occupant of the seat, at least a portion of each vibrating device being received in a respective through-hole in the support plate.

Abstract: A headrest for a vehicle seat, comprising a support configured to receive and support the head of a seat occupant, and, connected to said support, at least one speaker system comprising: a speaker unit comprising a loudspeaker received in an airtight housing, a guide system for guiding the speaker unit relative to the support of the headrest, said guide system being configured so that the speaker unit can transition from a first usage position to a second usage position, and vice versa, the transition from the first usage position to the second usage position, and vice versa, corresponding to a movement combining a translation of the speaker unit and a rotation of the speaker unit.

Abstract: A noise-canceling headrest for a vehicle seat, comprising a central part and two side parts, at least one loudspeaker, a microphone, an audio source playback module capable of transmitting an audio signal to the loudspeaker, a noise sensor, and a signal processing circuit configured for: receiving a noise signal and determining a noise correction function, receiving an error signal from the microphone, and updating the noise correction function, generating a noise correction signal by applying the noise correction function to the noise signal, generating a control signal intended for the loudspeaker, by adding together the noise correction signal and the audio signal.

Abstract: A headrest for a vehicle seat includes: a support surface for the head of an occupant; at least one lateral edge extending along an edge of the support surface; and a sound diffusion system arranged in a cavity in the edge and including a speaker configured to emit sound waves in front of the support surface and at least one passive radiator configured to emit low frequency sound waves in front of the support surface.

Abstract: A noise-canceling headrest for a vehicle seat, comprising a central part and two side parts, at least one loudspeaker, a microphone, an audio source playback module capable of transmitting an audio signal to the loudspeaker, a noise sensor, and a signal processing circuit configured for: receiving a noise signal and determining a noise correction function, receiving an error signal from the microphone, and updating the noise correction function, generating a noise correction signal by applying the noise correction function to the noise signal, generating a control signal intended for the loudspeaker, by adding together the noise correction signal and the audio signal.

Abstract: A headrest for a vehicle seat comprises at least one speaker partially delimiting a cavity and at least one waveguide having a first end opening into the cavity.

Abstract: A headrest assembly for a vehicle seat, that is height-adjustable along an adjustment direction. The headrest assembly includes a pin adapted to be fixed to a seat backrest and extending along the adjustment direction, an adjustment plate integrally secured to the one pin, and a supporting structure adapted to support a user's head, mounted so as to be adjustable in translation on the adjustment plate along the adjustment direction. The pin is covered by a covering portion. The covering portion and the adjustment plate are made of plastic material overmolded on the pin.

Abstract: A headrest for a vehicle seat, comprising a support configured to receive and support the head of a seat occupant, and, connected to said support, at least one speaker system comprising: a speaker unit comprising a loudspeaker received in an airtight housing, a guide system for guiding the speaker unit relative to the support of the headrest, said guide system being configured so that the speaker unit can transition from a first usage position to a second usage position, and vice versa, the transition from the first usage position to the second usage position, and vice versa, corresponding to a movement combining a translation of the speaker unit and a rotation of the speaker unit.

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: An adjustable headrest for motor vehicle seat. The headrest includes a support structure fixed to a backrest and a body having a front shell and a rear shell. The front shell has a front face intended for contact with the head of a user of the seat, the front face being movable relative to the support structure along a front-rear direction denoted X, over a total travel distance. The total travel distance is formed by a first travel portion provided by a mounting enabling translational movement of the body relative to the support structure while maintaining the position of the front shell relative to the rear shell substantially constant. The total travel distance is also formed by a second travel portion provided by a mounting enabling translational movement of the front shell alone relative to the rear shell.

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.

Abstract: An adjustable headrest for motor vehicle seat. The headrest includes a support structure fixed to a backrest and a body having a front shell and a rear shell. The front shell has a front face intended for contact with the head of a user of the seat, the front face being movable relative to the support structure along a front-rear direction denoted X, over a total travel distance. The total travel distance is formed by a first travel portion provided by a mounting enabling translational movement of the body relative to the support structure while maintaining the position of the front shell relative to the rear shell substantially constant. The total travel distance is also formed by a second travel portion provided by a mounting enabling translational movement of the front shell alone relative to the rear shell.

Abstract: A headrest assembly for a vehicle seat, that is height-adjustable along an adjustment direction. The headrest assembly includes a pin adapted to be fixed to a seat backrest and extending along the adjustment direction, an adjustment plate integrally secured to the one pin, and a supporting structure adapted to support a user's head, mounted so as to be adjustable in translation on the adjustment plate along the adjustment direction. The pin is covered by a covering portion. The covering portion and the adjustment plate are made of plastic material overmolded on the pin.

Abstract: An armrest frame including a first portion including a shaft and a single plastic material lining overmolded around the shaft and a second portion including at least one branch attached to the lining. A seat including a backrest and an armrest including such a frame, pivotally connected to the backrest.