PASSENGER SEAT

摘要

Described are passenger seat assemblies including spreaders (18) with a transitional region having a forward surface with a radius of curvature of about 3.5 to 3.7 inches and an aft surface with an angular profile configured so that the aft surface is located forward of a plane formed by a surface of the at least one seat back (12) in a fully upright position. The passenger seat assemblies also include leg assemblies (22 with a forward leg portion having a forward surface that is substantially aligned with a forward base frame tube, and an aft surface with an angular profile having a shape of an “r.”

主权项

1. A passenger seat assembly comprising:
(a) at least two spreaders, each spreader comprising an upper portion and a lower portion separated by a transitional region; (b) at least one seat back comprising a central panel and a pair of extensions coupled to a lower end of the central panel, wherein the pair of extensions are pivotally coupled the upper portions of the at least two spreaders; (c) a base structure comprising a forward base frame tube and an aft base frame tube, wherein the forward base frame tube and the aft base frame tube are coupled to the lower portions of the at least two spreaders; and (d) at least two leg assemblies, each leg assembly comprising a forward leg portion coupled to the forward base frame tube and the aft base frame tube; wherein the transitional region of each spreader comprises a forward surface having a radius of curvature of about 3.5 to 3.7 inches and an aft surface having an angular profile configured so that the aft surface is located forward of a plane formed by a surface of the at least one seat back in a fully upright position.