The present disclosure relates to headrest assemblies for passenger vehicles. More specifically, the present disclosure describes a headrest assembly that provides adjustment between a raised position and a lowered position by way of a pair of compression springs or an over-centering linkage. Also provided herein is a method for using the same.

Described are passenger seat headrest assemblies and seats including headrest assemblies having a semi-rigid flap fixedly connected with an upper portion of the seat back or headrest assembly at a first location and movably connected with the seat back or headrest assembly at a receiving element separated from the first location. The distance of the movable connection from the first location can be adjusted to cause the flexible headrest assembly to flex outward from the seat to provide a greater or lesser degree of support for a passenger.

A seat system for a passenger aircraft. The seat system includes a passenger seat frame having a backrest support assembly including a backrest and a spreaders and spar tube assembly; and a seat bottom support assembly. The seat system further includes a solenoid-actuated recline lever assembly including an armrest or center console connected to the spreaders and spar tube assembly; a counter-balanced solenoid actuator positioned in the seat bottom support assembly; and a passenger operated release switch attached between the solenoid actuator and the armrest or center console. The seat system may further include a seat back tray table attached to the back of the passenger seat frame.

A sleeping assist device for providing help for both obese and non-obese passengers to sleep while traveling on an airplane consists of a primary model for non-obese passengers and a second model for obese passengers. The primary device includes an adjustable length support tube that rests on the lap of the passenger during use. A face sleeping cushion is adjusted in height using a pair of tubes with a tube locking mechanism that can be locked to set the height. A pair of locking mechanisms are attached to a cushion support plate and allow the tilt angle of the face cushion to be adjusted. An adjustable length belt attached to the cushion support plate is used to hold the device securely using two airplane seat mounting brackets. A security ring is welded to the lower tube to prevent the device being used as a weapon by use of a steel wire cable that attaches to the security ring and to a second ring mounted to the passenger seat mounting frame.

The secondary device for obese passengers also includes an adjustable length support tube that rests on the lap of the passenger during use. A face sleeping cushion is adjusted in height using a locking mechanism that can be locks the position between the lower tube and a first bar. The first bar and a second bar connected to the cushion support plate are fixed in both angular and translational position by using a thumb screw to adjust cushion tilt and a locking mechanism to adjust the translation of the second bar. An adjustable length belt attached to the cushion support plate is used to hold the device securely using two airplane seat mounting brackets. A security ring is welded to the lower tube to prevent the device being used as a weapon by use of a steel wire cable that attaches to the security ring and to a second ring mounted to the passenger seat mounting frame.

A seat (1) for transport vehicles with an articulated frame (2) capable of moving and changing shape between a neutral position N and a comfort position C, which comprises a headrest portion (21) mechanically linked by means of a connector (22) to a connection area of a backrest portion (23) that changes the height position thereof as the frame (2) moves from the neutral position N to the comfort position C thereof, the connector (22) being suitable for this change in height position to be transmitted, by means of mechanical drag, to the headrest portion (21), the headrest portion (21) being mechanically linked by means of an upper guide unit (31) of a guide system to the chassis (4) which is configured such that the inclination of both the headrest portion (21) and the backrest portion (23) increase the inclination thereof with respect to the vertical as the frame (2) moves from the neutral position N to the comfort position C thereof.

A headrest assembly for use in a vehicle seat. The headrest assembly includes one or more support arms that are connected to a seatback frame. An adjustable connection assembly connects at least a portion of the one or more support arms to at least a portion of the headrest body. The adjustable connection assembly allows the head rest body to move in a forward and rearward direction, to move in an up and down direction, and/or to pivot relative to the seatback frame of the vehicle seat.

An adjustable vehicle seat including a seat frame forming a seat back, the seat frame being configured to couple with an aerospace vehicle, and a seat pan coupled to the seat frame, where one or more of the seat frame and the seat pan is configured to couple the seat pan to the seat frame in one of a plurality of positions relative to the seat frame so that an eye position of a seat occupant relative to instrumentation within the aerospace vehicle is decoupled from a size of the seat occupant.

A system may include an adjustable headrest assembly. The adjustable headrest assembly may include a headrest center bracket, a left vertical side plate track, a left headrest side plate assembly including a left headrest side plate, a right vertical side plate track, and a right headrest side plate assembly including a right headrest side plate. The left headrest side plate may be configured to move up and down relative to the left vertical side plate track based on the engagement of the left headrest side plate assembly with the left vertical side plate track. The right headrest side plate may be configured to move up and down relative to the right vertical side plate track based on the engagement of the right headrest side plate assembly with the right vertical side plate track.

An ergonomic headrest assembly which can be used by a user such as a passenger on an airplane or other vehicle to prevent or restrict side-to-side head movements of the user to enhance comfort of the user may include a lower portion. A headrest portion may be provided on the lower portion. The headrest portion may include a middle headrest section. A pair of side headrest sections may extend from the middle headrest section. The side headrest sections may be adjustable at selected angles with respect to the middle headrest section to support and prevent or restrict side-to-side movement of the head of a user as the middle headrest section of the headrest portion supports the user's head.

A vehicle seat including: a seat back; a seat pan; and one or more side support elements is disclosed. Each side support element is moveable with respect to the seat back between: a stowed configuration, in which the side support element is stowed flush with, or is stowed within or behind the seat back; and a deployed configuration, in which the side support element extends outwardly from the seat back, generally in the same direction that the seat back faces, so as to offer support to the side of a vehicle user sitting in the vehicle seat. A row of two or more such vehicles seats is also disclosed, in which all of the seats of the row face in the same direction, and adjacent seats within the row are connected to each other.