Plastic bottom diaphragm for aircraft seat

摘要

An improved aircraft seat having a base frame including leg assemblies for supporting front and rear horizontal stretcher tubes and spreaders. A bottom diaphragm supporting a bottom seat cushion of an individual passenger seat is positioned between two of the spreaders and is removably connected to the front and rear stretcher tubes. The bottom diaphragm is preferably a formed tray-like member of unitary construction forming an open receptacle for a floatation portion on the bottom seat cushion.