Seat assemblies (200) including structural components (212, 222, 232) made of foam are described. A seat sub-assembly (210, 220, 230) can include a frame (214, 224, 234) and a foam support (212, 222, 232). The foam support (212, 222, 232) can be coupled to the frame (214, 224, 234) for receiving a load on the seat sub-assembly (210, 220, 230), dissipating at least half of the load, and dispersing the load through the frame (214, 224, 234).

A passenger seating assembly with an integrated cabin attendant seat (CAS) is disclosed. In embodiments, a CAS folds down from a monument mounted to the cabin floor via a combined track fitting that secures into the left-side or right-side track rail. A group of passenger seats (e.g., two to five) faces opposite the CAS monument and includes left-side and right-side leg assemblies mountable to the track rails via track fittings. One rear portion of a leg assembly attaches to the combined track fitting to integrate the passenger seats and CAS monument, eliminating unused space between the passenger seats and CAS monument.

An aircraft passenger seat is proposed, comprising a structural component, on which a tray table of the aircraft passenger seat is held via a hinge assembly, the tray table being pivotable about a pivot axis of the hinge assembly. According to the invention, a connection assembly for detachably fitting the tray table on the structural component is provided, the connection assembly comprising an adjustment mechanism for adjusting a mounting position for the tray table relative to the structural component, the adjustment mechanism being designed such that the mounting position can be selected from a plurality of different mounting positions for the tray table relative to the structural component.

An aircraft passenger seat including a support framework designed to be fastened to a floor in an aircraft passenger cabin. The support framework has a seat divider and cross rails running transversely to the seating direction, and the support framework is held by the cross rails, a housing including a structural component, and the housing at least partly surrounds a backrest. The structural component is provided on the seat divider, and includes a compound sheet component having one or more cover sheets, with a connecting structure provided between a plurality of cover sheets, more particularly between two cover sheets. The connecting structure creates gaps between the cover plates, and the volume of the gaps makes up at least 50% of the volume between the cover sheets of the compound sheet component.

Example methods and systems for isolating and alleviating load in an aircraft are described, comprising providing a sliding joint between a seat track and a flight deck floor panel. The sliding joint comprises a lug comprising a first end and a second end opposite the first end, wherein the first end is adapted to attach to the seat track and the second end comprises an elongate aperture, and a clevis comprising an oblate shaped slider bushing that is coupled to the lug.

Described are base frame assemblies for a passenger seat having an elongated tube and a connector. The elongated tube may include an inner surface, an outer surface, and a connecting aperture extending from the inner surface to the outer surface. The connector may include a first end, a second end, a central opening extending from the first end to the second end, a first stopper at the first end, a second stopper proximate to the second end, a contact surface between the first stopper and the second stopper, and an adjustment slot defined as extending from the first end to the second end. The connector may be positioned within the connecting aperture such that a portion of the elongated tube contacts the contact surface between the first stopper and the second stopper that may together overlap a portion of the inner surface and outer surface of the elongated tube.

Described are modular leg assemblies for passenger seats. The modular leg assemblies can include a universal first leg member, a universal second leg member, a size specific member, and a universal seat frame tube receptor. The universal first leg member may be coupled to a first seat track fitting. The universal second leg member may be coupled to a second seat track fitting. The size specific member may be coupled to the universal first leg member and to the universal second leg member. At least one of the universal second leg member or the universal seat frame tube receptor can include a set of attachment points for coupling the universal seat frame tube receptor to the universal second leg member.

A method of assessing performance of a seat is provided. The method comprises identifying a number of critical seats for testing from a layout of passenger accommodation and building a computer simulation model, following a building block approach, for each identified critical seat. A number of loads are tested on each simulation model. Critical seats are selected for physical testing from simulation model test results according to a specified criteria assessment matrix.

A vertical adjustment system for an aircraft seat is disclosed. The vertical adjustment system may include an actuation assembly. The actuation assembly may include an actuator configured to provide a vertical height adjustment for the aircraft seat. The actuation assembly may include a release mechanism configured to couple to a rotatory portion of the swivel plate. The actuation assembly may include a plurality of vertical stabilizer rods coupled to a portion of the tracking plate. The actuation assembly may include a pillow block assembly. The pillow block assembly may include a plurality of pillow blocks coupled to a portion of the swivel plate. The pillow block assembly may include a plurality of rollers coupled to a portion of the plurality of pillow blocks. The plurality of rollers may be configured to provide stability along the vertical stabilizer rods when the actuator provides the vertical height adjustment.

The invention relates to an aircraft passenger seat comprising a support framework, the support framework being designed to be fastened to a floor in an aircraft passenger cabin, wherein the support framework has a seat divider and bars running transversely to the seating direction, the seat divider being supported by the bars. A housing comprises a structural component and the housing at least partly surrounds a backrest. According to the invention, the seat divider is connected to the structural component via a connecting device, the connecting device being designed as a plug-in connection.