Described are headrest assemblies having at least one moveable member that is movable to reconfigure the headrest between: an opened arrangement in which a recess sized for receiving a ponytail or bun of hair is defined between portions of a head-receiving surface of the headrest; and a closed arrangement in which the recess is reduced or eliminated by edges of two members of the headrest being in abutment or adjacent to one another.

A device (219) includes a housing (301) and a link (320) displaceably arranged in the housing (301) and having an input port (323) configured to receive an input force (269) oriented along a first axis (91), a first output port (321) configured to provide a first output force (261) based on the input force (259, 269), and a second output port (322) configured to provide a second output force (262) based on the input force (259, 269). The link (320) is configured to move the first output port (321) from a start position (291) to a stop position along the first axis (91) by a first distance in response to receiving the input force (269) and to move the second output port (322) from the start position (291) to the stop position (294) along the first axis (91) by a second distance (422) in response to receiving the input force (259, 269). The first distance is smaller than the second distance.

A device (219) includes a housing (301) and a link (320) displaceably arranged in the housing (301) and having an input port (323) configured to receive an input force (269) oriented along a first axis (91), a first output port (321) configured to provide a first output force (261) based on the input force (259, 269), and a second output port (322) configured to provide a second output force (262) based on the input force (259, 269). The link (320) is configured to move the first output port (321) from a start position (291) to a stop position along the first axis (91) by a first distance in response to receiving the input force (269) and to move the second output port (322) from the start position (291) to the stop position (294) along the first axis (91) by a second distance (422) in response to receiving the input force (259, 269). The first distance is smaller than the second distance.

The technology described in this document can be embodied in a headrest of a seat, the headrest including an enclosure for housing one or more acoustic transducers, and an adjustable headrest wing disposed in front of the enclosure. The headrest wing is coupled to the enclosure by a pivot, and configured to be adjusted to one of multiple positions within an angle range around the pivot. The headrest wing is also configured to support the head of a seat-occupant. The headrest further includes a connector disposed between the enclosure and a rear portion of the headrest wing. The connector is configured to provide an acoustic channel between the enclosure and the headrest wing such that audio signals from the one or more acoustic transducers are radiated outward through the headrest wing.

The technology described in this document can be embodied in a headrest of a seat, the headrest including an enclosure for housing one or more acoustic transducers, and an adjustable headrest wing disposed in front of the enclosure. The headrest wing is coupled to the enclosure by a pivot, and configured to be adjusted to one of multiple positions within an angle range around the pivot. The headrest wing is also configured to support the head of a seat-occupant. The headrest further includes a connector disposed between the enclosure and a rear portion of the headrest wing. The connector is configured to provide an acoustic channel between the enclosure and the headrest wing such that audio signals from the one or more acoustic transducers are radiated outward through the headrest wing.

A deployable headrest airbag includes an airbag chamber configured to be coupled to a headrest of a vehicle seat. The airbag chamber has a stowed position and a deployed position. In stowed position, the airbag chamber is disposed inside the headrest. In the deployed position, the deployable headrest airbag is disposed outside of the headrest to protect a head and a neck of a vehicle occupant.

An add-on element for adding onto a passenger-compartment component of a motor vehicle includes a basic body composed of a flexible first material, and at least one actuator body composed of a flexible second material. The at least one actuator body is deformable by being acted upon with an actuator source. The basic body has at least one receiving region with a receiving-region shape, wherein the at least one actuator body is arranged in the at least one receiving region. By way of a change in shape of the at least one actuator body, the receiving-region shape of the at least one receiving region can be changed.

An add-on element for adding onto a passenger-compartment component of a motor vehicle includes a basic body composed of a flexible first material, and at least one actuator body composed of a flexible second material. The at least one actuator body is deformable by being acted upon with an actuator source. The basic body has at least one receiving region with a receiving-region shape, wherein the at least one actuator body is arranged in the at least one receiving region. By way of a change in shape of the at least one actuator body, the receiving-region shape of the at least one receiving region can be changed.

An audio system for a seat headrest includes N speaker(s), each configured to be integrated into a seat headrest, N being an integer greater than or equal to 1, and an audio processing device including an electronic transmission channel connected to the speaker(s) and configured to transmit at least one audio stream via the speaker(s). The audio system comprises P microphone(s), each configured to be integrated into the headrest, P being an integer greater than or equal to 1. The audio processing device further includes an electronic receiving channel connected to the microphone(s) and configured to receive at least one sound signal via the P microphone(s).

An audio system for a seat headrest includes N speaker(s), each configured to be integrated into a seat headrest, N being an integer greater than or equal to 1, and an audio processing device including an electronic transmission channel connected to the speaker(s) and configured to transmit at least one audio stream via the speaker(s). The audio system comprises P microphone(s), each configured to be integrated into the headrest, P being an integer greater than or equal to 1. The audio processing device further includes an electronic receiving channel connected to the microphone(s) and configured to receive at least one sound signal via the P microphone(s).