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.

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.

A head restraint assembly is provided with a head restraint frame mounted to a post for movement along the post for adjustment relative to a vehicle seat. The head restraint frame has a contact surface. A biasing member is mounted to the head restraint frame for movement relative to the head restraint frame to maintain the head restraint frame in a locked condition along the post. An actuation member is mounted to the head restraint frame for movement relative to the head restraint frame. The actuation member cooperates with the biasing member such that movement of the actuation member moves the biasing member, thereby disengaging the biasing member from the post to permit movement of the head restraint along the post such that the biasing member engages the contact surface in the second position to provide feedback to the user of an unlocked condition of the head restraint frame.

A head restraint assembly is provided with a head restraint frame mounted to a post for movement along the post for adjustment relative to a vehicle seat. The head restraint frame has a contact surface. A biasing member is mounted to the head restraint frame for movement relative to the head restraint frame to maintain the head restraint frame in a locked condition along the post. An actuation member is mounted to the head restraint frame for movement relative to the head restraint frame. The actuation member cooperates with the biasing member such that movement of the actuation member moves the biasing member, thereby disengaging the biasing member from the post to permit movement of the head restraint along the post such that the biasing member engages the contact surface in the second position to provide feedback to the user of an unlocked condition of the head restraint frame.

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.

An adjustable headrest 300 includes a guide 360 configured to be coupled to a seat, a head support 302 coupled to the guide and configured to be movable along an adjustment path relative to the seat, and a slider 370 having a surface defining a recess 373 receiving the guide such that the surface of the slider contacts a surface of the guide. The adjustment headrest further includes a retainer 390 positioned to urge the surface of the slider against the surface of the guide, thereby maintaining friction between the surface of the slider and the surface of the guide and resisting unintended movement of the slider with respect to the guide along the adjustment path. Also, a friction module and a friction hinge are provided, which can be incorporated into an adjustable headrest or other assemblies in which sliding and/or hinged components are desired.

An adjustable headrest 300 includes a guide 360 configured to be coupled to a seat, a head support 302 coupled to the guide and configured to be movable along an adjustment path relative to the seat, and a slider 370 having a surface defining a recess 373 receiving the guide such that the surface of the slider contacts a surface of the guide. The adjustment headrest further includes a retainer 390 positioned to urge the surface of the slider against the surface of the guide, thereby maintaining friction between the surface of the slider and the surface of the guide and resisting unintended movement of the slider with respect to the guide along the adjustment path. Also, a friction module and a friction hinge are provided, which can be incorporated into an adjustable headrest or other assemblies in which sliding and/or hinged components are desired.

A vehicle seat is equipped with a seatback having a mounting portion, a headrest having a headrest frame and an electric component, a first connector, and a second connector. The first connector has an engaging portion engaged with a hole of the headrest frame, a protrusion engaging the second connector, and a first connector terminal electrically connected to a lead wire of the electric component. The second connector has a first engaging piece engaged with a hole of the guide bracket from the outside of the guide bracket, a second engaging piece engaged with the protrusion of the first connector from the outside of the first connector, and a second connector terminal electrically connected to a lead wire wired in the seatback and the first connector terminal. The engagement between the hole of the mounting portion and the first engaging piece of the second connector can be released irreversibly.

A vehicle seat is equipped with a seatback having a mounting portion, a headrest having a headrest frame and an electric component, a first connector, and a second connector. The first connector has an engaging portion engaged with a hole of the headrest frame, a protrusion engaging the second connector, and a first connector terminal electrically connected to a lead wire of the electric component. The second connector has a first engaging piece engaged with a hole of the guide bracket from the outside of the guide bracket, a second engaging piece engaged with the protrusion of the first connector from the outside of the first connector, and a second connector terminal electrically connected to a lead wire wired in the seatback and the first connector terminal. The engagement between the hole of the mounting portion and the first engaging piece of the second connector can be released irreversibly.

A seat system for a passenger aircraft includes at least one passenger seat and an adjustable headrest attached to the passenger seat. The adjustable headrest includes a plurality of panels including a center panel and at least two pairs of side panels; a plurality of vertically articulated joints each separating each of the pairs one from another; a sliding mechanism such as a rail to facilitate vertical displacement of the plurality of panels, the sliding mechanism connected to the center panel; and a quick release mechanism to facilitate removal of the plurality of panels from the passenger seat, the quick release mechanism engaged with the sliding mechanism. A seat back tray table may further be attached to the back of the passenger seat. The headrest is vertically adjustable, and configured to curve around a passenger's head to provide comfort and stability.