A headrest support and a seat headrest in which the headrest support has a U shape and is configured for supporting a headrest. The headrest support includes an inner tube and an outer tube. The outer tube covers at least two end portions of the inner tube. The outer tube is secured to the inner tube by laser brazing.

A headrest support and a seat headrest in which the headrest support has a U shape and is configured for supporting a headrest. The headrest support includes an inner tube and an outer tube. The outer tube covers at least two end portions of the inner tube. The outer tube is secured to the inner tube by laser brazing.

Described are ergonomic passenger seats that may include monocoque or semi-monocoque seat backs, cellular suspension cushions, and tray tables with support arms that may be located within the interior volume of the monocoque or semi-monocoque seat backs when in their stowed positions. The passenger seats offer enhanced passenger comfort and space while providing a lightweight, simple to manufacture design. Monocoque and semi-monocoque seat backs may form integral parts of passenger seats to support additional loads without need for heavy, complex structures. The space within the monocoque or semi-monocoque seat back may then be used for storage or suspension cushions that offer improved comfort with a lighter seat frame. Monocoque and semi-monocoque seat backs may also facilitate the adoption of several other seating mechanisms, such as new seat mounts that allow for improved seat motion that allows for passenger recline with reduced impingement on other passengers' space.

Described are ergonomic passenger seats that may include monocoque or semi-monocoque seat backs, cellular suspension cushions, and tray tables with support arms that may be located within the interior volume of the monocoque or semi-monocoque seat backs when in their stowed positions. The passenger seats offer enhanced passenger comfort and space while providing a lightweight, simple to manufacture design. Monocoque and semi-monocoque seat backs may form integral parts of passenger seats to support additional loads without need for heavy, complex structures. The space within the monocoque or semi-monocoque seat back may then be used for storage or suspension cushions that offer improved comfort with a lighter seat frame. Monocoque and semi-monocoque seat backs may also facilitate the adoption of several other seating mechanisms, such as new seat mounts that allow for improved seat motion that allows for passenger recline with reduced impingement on other passengers' space.

A hygienic cover, hygienic kit, and a method thereof for a hygienic seat location including a stretchable antimicrobial hygienic headrest cover having an ability to conform itself to dimensions of the existing headrest. The cover comprises a stretchable, antimicrobial, a non-mesh fabric configured to provide a barrier between a user and the headrest. The headrest has an elastic opening in the back surface allowing the fabric to stretchily fit over an existing headrest. A tray table cover defined by a top panel, a bottom panel, and a sidewall connecting said top and bottom panels thereby creating an opening to a cavity therein is included. A pre-packaged sanitizing wipe is included to sanitize the seating location, and a container is included to encapsulate the pre-packaged sanitizing wipe, the tray table cover, and the stretchable headrest cover, wherein the headrest cover and the tray table cover are compressed.

A removable headrest cover includes a flexible shroud having an inner chamber and an outer chamber. The inner chamber contains padding and is separated from the outer chamber by an inner panel and the outer chamber is accessible through an outer opening defined through an outer surface of the shroud. The shroud is configured to enclose a chair headrest within the outer chamber, and when removed from the chair, to be rolled or folded into multiple stacked portions the outermost portion of which includes an end segment of the outer opening that can enclose the other rolled or stacked portions within the outer chamber to form a pillow.

Provided is to stabilize a fixed state of each bag body provided at a vehicle seat and configured to expand to push a corresponding one of the shoulders of a seated passenger. Of a seat back provided at the vehicle seat, each shoulder support configured to support a corresponding one of the shoulders of the seated passenger includes an air cell configured to expand by injection of air. The air cell includes protrusions extending in a predetermined direction and provided at respective end portions of the air bag in the extending direction thereof. The air cell is attached to the inside of the seat back in such a manner that each of the protrusions provided at respective end portions in the extending direction is fixed to a corresponding one of fixing positions separated from each other in the width direction of the vehicle seat.

Provided is to stabilize a fixed state of each bag body provided at a vehicle seat and configured to expand to push a corresponding one of the shoulders of a seated passenger. Of a seat back provided at the vehicle seat, each shoulder support configured to support a corresponding one of the shoulders of the seated passenger includes an air cell configured to expand by injection of air. The air cell includes protrusions extending in a predetermined direction and provided at respective end portions of the air bag in the extending direction thereof. The air cell is attached to the inside of the seat back in such a manner that each of the protrusions provided at respective end portions in the extending direction is fixed to a corresponding one of fixing positions separated from each other in the width direction of the vehicle seat.

The vehicle with right and left front seats, a cargo bed located behind the right and left front seats, a guide rail located on the cargo bed, and a rear seat with a seat frame connected to the guide rail and slidable in the front-rear direction along the guide rail. This structure enables the cargo bed to have a sufficient capacity while preventing the vehicle body from increasing in size, and secures freedom in the shape of the rear seat.

The vehicle with right and left front seats, a cargo bed located behind the right and left front seats, a guide rail located on the cargo bed, and a rear seat with a seat frame connected to the guide rail and slidable in the front-rear direction along the guide rail. This structure enables the cargo bed to have a sufficient capacity while preventing the vehicle body from increasing in size, and secures freedom in the shape of the rear seat.