In order to improve ease of maintenance of an aircraft passenger seat, the aircraft passenger seat 100 is adapted to be changeable between an upright position and a bed mode position at which the backrest is folded forward. A mechanism for locking the seat at each of the positions is provided with lock pins 350 provided on both sides of the backrest, a handle unit 200 mounted to a rear face of the backrest, and two wires 300 for connecting the handle unit 200 and the lock pins 350. A structure for connecting the wires 300 to the handle unit 200 is improved to facilitate the maintenance of the wires and to make the handle unit lightweight.

A passenger seat may be configured to adjust between an upright seating position and a lie-flat sleeping position (which may include one or more intermediate reclined seating positions) via independent rollers attached to the seat pan, or seat bottom, and to the backrest. As the passenger seat transitions between the upright seating position and the lie-flat sleeping position, guide channels set into the left and right frame rails direct the movement of the independent rollers through the guide channels and thereby control the angles of the seat pan and the backrest throughout the transition.

A method of determining a seating arrangement for an aircraft cabin includes entering configuration parameters into a processor including a cabin width, a quantity of aisles, a minimum aisle width, and a quantity of columns of seats, wherein each seat is movable between a seated configuration and a bed configuration. The method additionally includes entering seat parameters describing the taper in seat width from a main portion to a footrest, and entering configuration rules wherein in at least one column of an inboard column set and/or an outboard column set, the seats are reversed in direction and/or are staggered. The method further includes determining, using the processor, a seating arrangement including a column quantity in each column set, and a seat direction and/or a stagger for each column in the seating arrangement that results in a maximum seat width at a main portion of the seats.

Arrangements for safety and comfort in vehicles.

Arrangements for safety and comfort in vehicles.

A reclinable passenger seat including a base, a seat pan frame having a front end connected to the base via a first fixed pivot, a support arm having one end connected to the base via a second fixed pivot aft of the first fixed pivot, and a backrest frame having an upper backrest member and a lower backrest member. An opposed end of the support arm is pivotally connected to the lower backrest member at a first location spaced from the upper backrest member. A rear end of the seat pan frame is pivotally connected to the lower backrest member at a second location between the first location and the upper backrest member. The backrest frame and seat pan frame are configured to move simultaneously between a sitting configuration and a reclined configuration through pivoting motion about the fixed pivots and about the two locations.

A reclinable passenger seat including a base, a seat pan frame having a front end connected to the base via a first fixed pivot, a support arm having one end connected to the base via a second fixed pivot aft of the first fixed pivot, and a backrest frame having an upper backrest member and a lower backrest member. An opposed end of the support arm is pivotally connected to the lower backrest member at a first location spaced from the upper backrest member. A rear end of the seat pan frame is pivotally connected to the lower backrest member at a second location between the first location and the upper backrest member. The backrest frame and seat pan frame are configured to move simultaneously between a sitting configuration and a reclined configuration through pivoting motion about the fixed pivots and about the two locations.

A seat attachable to a floor of a vehicle includes a seat frame movable between a first position and a second position and a mounting assembly attached to the seat frame and configured to be secured to the floor. The mounting assembly and seat frame are configured so that when the seat frame is in the second position first and second sliding assemblies of the mounting assembly are both located in forwardly extended positions and no part of the mounting assembly contacts the floor forward of a front connection of the mounting assembly.

A seating arrangement provides a relatively flat surface in the seating area of passenger vehicles to rest. The present invention allows the passenger to remain in the seat and be able to rest on a fully inclined seat providing a flat horizontal surface. In one embodiment, the back seat cushion(s) can be removable and thus the front seat backs rest upon the same platform support as the back seat cushions. In a second embodiment, the rear seat cushions have removable rear seat cushion sections to allow the front backs to fully recline into a horizontal position in the open voids formed after the headrest is removed. In a third embodiment applicable to the first two embodiments, the rear seat backs can be removed to extend the resting area into the trunk. In a fourth embodiment second row seats are fully reclinable onto the third row seats.

A seating arrangement provides a relatively flat surface in the seating area of passenger vehicles to rest. The present invention allows the passenger to remain in the seat and be able to rest on a fully inclined seat providing a flat horizontal surface. In one embodiment, the back seat cushion(s) can be removable and thus the front seat backs rest upon the same platform support as the back seat cushions. In a second embodiment, the rear seat cushions have removable rear seat cushion sections to allow the front backs to fully recline into a horizontal position in the open voids formed after the headrest is removed. In a third embodiment applicable to the first two embodiments, the rear seat backs can be removed to extend the resting area into the trunk. In a fourth embodiment second row seats are fully reclinable onto the third row seats.