A spring-based seat diaphragm may include at least one support diaphragm component. The at least one support diaphragm component may be transversely coupled to the first structural beam and the second structural beam. The spring-based seat diaphragm may include at least one spring. The at least one spring may be proximate to the at least one support diaphragm component. The at least one spring may be parallel to or positioned transverse to the at least one support diaphragm component between the first primary spreader and the second primary spreader. The at least one spring may include a plurality of bends configured to distribute user weight applied to a cushion installed on the aircraft seat over the spring-based seat diaphragm. The spring-based seat diaphragm may be configured to support an aft portion of the cushion. The first structural beam may be configured to support a forward portion of the cushion.

Described are monocoque seat backs having a structural shroud with a rear panel, a top lip and two side lips positioned along edges of the rear panel to form an interior volume. A mesh suspension system is coupled to the structural shroud and suspended over an opening of the interior volume. In certain embodiments, the structural shroud may be formed of one or more of a composite, a theroplastic resin, a thermoset resin, or a polyfuryl phenolic resin. The structural shroud is constructed to satisfy 16G criteria and FST criteria.

A springless lower closeout system for a passenger seat includes left-side and right-side seat spreaders defining a lower aft portion of the passenger seat between them. Each seat spreader includes a restrictive channel extending along the left and right sides of the seat spreader, oriented toward the lower aft portion of the passenger seat. A dress cover extends in a taut state between the left-side and right-side seat spreaders. The dress cover includes cord elements on its left and right edges, the cord elements insertable into the left-side restrictive channels to directly connect the dress cover to the seat spreaders, closing out the lower aft portion of the passenger seat. A zipper or fastener connecting the dress cover and either edge may be partially unfastened to adjust the tension of the dress cover and facilitate attachment or removal of the cord elements to or from the restrictive channels.

Improved seating arrangements for a vehicle cabin of a passenger transport system, in particular of an aircraft are disclosed. Examples herein provide improved seating arrangements providing a high density of seats and increased PAX numbers while ensuring privacy, comfort and a direct aisle access to each passenger. For example, the seating arrangements provided herein are applicable to narrow body aircrafts and wide body aircrafts, in particular in view of business class solutions.

A method of upholstering a seat having a seating frame, and a corresponding attachment assembly, comprises providing a diaphragm generally having a weave of warp and weft yarns with an attachment member for installation of the diaphragm to the seat. The attachment member comprises an adapter strip and a coil member. The coil member is adapted to be intertwined with the weave of the diaphragm and thereafter inserted into and held by the channel in the seating frame. The adapter strip may be connected to the coil member to facilitate feeding the assembly through the channel in the seating frame. Alternately, the adapter strip can replace the channel in the seating frame and instead provide a mounting structure to which the diaphragm can be attached through the coil member's engagement with the adapter strip. A retainer sheet may also be used to maintain a desired tension of the diaphragm during installation.

Vibration isolation for vehicle seat components can be provided and/or can be adjustable. A vehicle seat can include a seat portion. The seat portion can include a seat cushion and/or a seat pan. In some arrangements, one or more shape memory material members can be provided. The seat cushion can be supported by the one or more shape memory material members. The one or more shape memory material members can be configured to have selectively variable stiffness. In some arrangements, one or more super elastic wires can be provided. The one or more super elastic wires can be operatively connected to one or more structures such that the seat pan is suspended on the one or more super elastic wires.

An airplane seat cover is described. In an example, the airplane seat cover includes a first airplane cover section configured to be securely attached to a cushion of an airplane seat and including a first attachment device. The airplane seat cover also includes a second airplane cover section configured to be releasably attached to the first airplane cover section by including a second attachment device configured to be releasably attached to the first attachment device. Upon attachment of the second attachment device to the first attachment device, the first airplane cover section and the second airplane cover section form the airplane seat cover over the cushion of the airplane seat.

In a first aspect, provided is a cushion for an aircraft seat including at least one cushion having an upper side and a lower side of at least one plastic foam; at least one sensor system, where at least one sensor system is arranged in a region of the cushion adjacent the bottom surface of the cushion; and at least one flame retardant fabric covering at least one side of the at least one cushion. In a second aspect, provided is a cushion for an aircraft seat including at least one pad made of at least one plastic; at least one stabilizing means embedded in the at least one plastic; and at least one sensor system arranged on the at least one stabilizing means.

In some embodiments, a cushion material is disclosed. The cushion material is configured to be 3D-printable. The cushion material includes a plurality of gyroid lattice structures configured to be 3D-printable. The plurality of gyroid lattice structures are aligned along, and with respect to, a surface of the cushion material. In some embodiments, a method for providing a cushion material that is capable of being 3D printed is disclosed. The method includes generating a design of the cushion material comprising a variable mechanical stiffness across a surface of the cushion material. The method further includes producing the cushion material via additive manufacturing based on the design. Generating the design includes generating a layout design of a plurality of tube-like shaped gyroid lattice structures of the cushion material aligned with the surface of the cushion material.

An aircraft seat diaphragm includes a pre-stretched elastomeric fabric. The elastomeric fabric is bonded to a composite frame with features to insert the diaphragm into aircraft seat spreaders. The composite frame defines a rear extension that extends up along the rear of the seat for added support. The rear extension may correspond to a fabric portion that releasably attaches to the seat back of the aircraft seat. Rear attachment features on the composite frame engage clips on the rear of a seat cushion to hold the seat cushion in place.