Cushion assembly with elastomeric lattice insert
A cushion assembly such as an aircraft passenger seat cushion assembly including a solid foam component and an elastomeric lattice insert disposed in a void in the solid foam component, the elastomeric lattice insert having a compression profile that mimics a predetermined compression profile of a solid foam. The elastomeric lattice insert including repeating like cuboid structures such as interconnected repeating face-centered cube structures, interconnected repeating body-centered cube structures, or interconnected repeating kagome structures. The elastomeric lattice insert may be in thermal communication with an air conditioning system for delivering conditioned air through the elastomeric lattice insert.
1. A cushion assembly, comprising:
a solid foam cushion component comprising at least one of open cell foam and closed cell foam;
a surface void formed in a top surface of the solid foam cushion component, the surface void including at least one first portion extending from a left lateral extent to a right lateral extent of the solid foam cushion component, and at least one second portion extending from a rear extent to a position rearward of a front extent of the solid foam cushion component; and
an elastomeric lattice insert positioned in the surface void formed in the top surface of the solid foam cushion component, the elastomeric lattice insert having a unit cuboid structure, and the elastomeric insert including at least one first portion provided in the at least one first portion of the surface void and at least one second portion provided in the at least one second portion of the surface void, the at least one second portion of the elastomeric lattice insert continuous with the first portion of the elastomeric lattice insert.
2. The cushion assembly of claim 1 , wherein the elastomeric lattice insert comprises a plurality of stacked and interconnected repeating ones of cuboid structures.
3. The cushion assembly of claim 2 , wherein each of the cuboid structures has a unit cell length from 0.4 cm to 1.15 cm.
4. The cushion assembly of claim 2 , wherein each of the cuboid structures is identical and is one of a face-centered cube structure, a body-centered cube structure, and a kagome structure.
5. The cushion assembly of claim 1 , wherein the elastomeric lattice insert is a polyurethane resin.
6. The cushion assembly of claim 1 , wherein the cushion assembly is a component of an aircraft passenger seat, a partition, a monument or an ottoman.
7. An aircraft passenger seat bottom cushion assembly, comprising:
a solid foam cushion component comprising at least one of open cell foam and closed cell foam;
a surface void formed in a top surface of the solid foam cushion component, the surface void including at least one first portion extending from a left lateral extent to a right lateral extent of the solid foam cushion component, and at least one second portion extending from a rear extent to a position rearward of a front extent of the solid foam cushion component; and
an elastomeric lattice insert positioned in the surface void formed in the top surface of the solid foam cushion component, the elastomeric lattice insert having a unit cuboid structure, and the elastomeric insert including at least one first portion provided in the at least one first portion of the surface void and at least one second portion provided in the at least one second portion of the surface void, the at least one second portion of the elastomeric lattice insert continuous with the first portion of the elastomeric lattice insert.
8. The aircraft passenger seat bottom cushion assembly of claim 7 , wherein the elastomeric lattice insert comprises a plurality of stacked and interconnected repeating ones of cuboid structures each having a unit cell length from 0.4 cm to 1.15 cm.
9. The aircraft passenger seat bottom cushion assembly of claim 8 , wherein each of the cuboid structures is identical and is one of a face-centered cube structure, a body-centered cube structure, and a kagome structure.