The present application discloses an adjustment assembly and a headrest. The adjustment assembly includes: a guiding rod; a fixing member, fixed to an end of the guiding rod; a driving portion, movably connected to the fixing member; and a first screw, engaged to the fixing member with threads, and the driving portion is connected to the fixing member by the first screw, wherein the driving portion includes a first motor, and the first motor is used to drive the driving portion to linearly move in respect to the fixing member along a direction close to or away from the fixing member. The adjustment assembly of the application can be adjusted electrically, such that the operation is convenient, and the structure is simple and reliable.

A passenger seat headrest may be provided for a passenger seat such as but not limited to an aircraft passenger seat. The passenger seat headrest includes a main portion, a wing, and a hinge connecting the wing with the main portion such that the wing is movable relative to the main portion about at least one axis. The hinge is adjustable such that a resistance to rotation of the wing relative to the main portion is adjustable.

A passenger seat headrest may be provided for a passenger seat such as but not limited to an aircraft passenger seat. The passenger seat headrest includes a main portion, a wing, and a hinge connecting the wing with the main portion such that the wing is movable relative to the main portion about at least one axis. The hinge is adjustable such that a resistance to rotation of the wing relative to the main portion is adjustable.

An extendable seat base for a seat of a vehicle is disclosed. The seat base includes an outer cushion, a cord, and a motor. The outer cushion forms a top of the seat base and extends, in one unitarily formed piece, down a front of the seat base and back underneath or within the seat base, such that excess material of the outer cushion is positioned underneath or within the seat base. The cord is connected to an end of the outer cushion at the excess material. The motor is adapted to pull the excess material underneath or within the seat base while the seat base is in a retracted position and to release the excess material while the seat base is in an extended position. At least a portion of the excess material is used to form part of an extended seat for a vehicle occupant while the seat base is in the extended position.

An extendable seat base for a seat of a vehicle is disclosed. The seat base includes an outer cushion, a cord, and a motor. The outer cushion forms a top of the seat base and extends, in one unitarily formed piece, down a front of the seat base and back underneath or within the seat base, such that excess material of the outer cushion is positioned underneath or within the seat base. The cord is connected to an end of the outer cushion at the excess material. The motor is adapted to pull the excess material underneath or within the seat base while the seat base is in a retracted position and to release the excess material while the seat base is in an extended position. At least a portion of the excess material is used to form part of an extended seat for a vehicle occupant while the seat base is in the extended position.

A seat (S) comprises a seat portion (SP) having an occupant supporting surface (SPU) and a back portion (BP) having an occupant supporting surface (BPU) and head rest assembly (1), the head rest assembly (1) having a head rest portion (2) and a side impact portion (3), the head rest assembly (1) being secured or securable to the seat (S), and being movable towards and away from a seat portion (SP) of the seat (S), the side impact portion (3) comprising a pair of peripheral elongate portions (3a) which are pivotable together about a common pivot axis (P) and relative to the head rest portion (2) between a first position wherein each peripheral elongate portion (3a) extends along the occupant supporting surface (BPU) of the back portion (BP) of the seat (S) toward the seat portion (SP) and a second or stowed position.

A seat (S) comprises a seat portion (SP) having an occupant supporting surface (SPU) and a back portion (BP) having an occupant supporting surface (BPU) and head rest assembly (1), the head rest assembly (1) having a head rest portion (2) and a side impact portion (3), the head rest assembly (1) being secured or securable to the seat (S), and being movable towards and away from a seat portion (SP) of the seat (S), the side impact portion (3) comprising a pair of peripheral elongate portions (3a) which are pivotable together about a common pivot axis (P) and relative to the head rest portion (2) between a first position wherein each peripheral elongate portion (3a) extends along the occupant supporting surface (BPU) of the back portion (BP) of the seat (S) toward the seat portion (SP) and a second or stowed position.

A seat headrest is provided on a seat backrest for the purpose of supporting the head and neck without need for an orthopaedic pillow to improve comfort of vehicle seats during travel and having a bending mechanism that allows the seat headrest to be used in various shapes and positions by being bent.

A vehicle headrest including: a main portion including a central part of a front surface of the headrest; a side portion including a side part of the front surface of the headrest, the side portion including a lower side portion and an upper side portion which are divided from each other in a height direction; a first hinge shaft coupling the side portion to the main portion in a state where the side portion is capable of protruding forward to a side support position by being rotated around an axis which extends in the height direction and is inclined downward and inward in a width direction; and a second hinge shaft coupling the lower side portion to the upper side portion in a state where the lower side portion is capable of being raised forward around an axis extending in the width direction.

An adjustable head support includes an articulating arm that has a plurality of members, at least one of the members is attached to a consecutive member and configured to rotate about a first axis. At least another of the members is attached to a consecutive member and configured to rotate about a second axis, the first axis and the second axis being perpendicular. A head support assembly is pivotally coupled to the articulating arm.