Collapsible shell mounted passenger lift assembly

A seat assembly, comprising:

• a seat shell including upstanding walls positioned in relation to a seat;
• and
• a passenger lift assembly removably attachable to the seat shell, the passenger lift assembly comprising:
• a spine defining a motion path;
• a lift mechanism attached to the spine and configured to travel along the motion path;
• and
• a plurality of branch subassemblies attached to the spine, each branch subassembly comprising at least one leg removably attachable to one of the upstanding walls;
• wherein each leg attaches to its respective upstanding wall via a latch and catch assembly.

A seat assembly, comprising:

• a seat shell including upstanding walls positioned in relation to a seat;
• and
• a passenger lift assembly removably attachable to the seat shell, the passenger lift assembly comprising:
• a spine defining a motion path;
• a lift mechanism attached to the spine and configured to travel along the motion path;
• and
• a plurality of branch subassemblies attached to the spine, each branch subassembly comprising at least one leg removably attachable to one of the upstanding walls;
• wherein:
• the shell comprises spaced upstanding walls defining an interior space therebetween;
• the plurality of branch subassemblies are configured to span the interior space to position the spine substantially centered over the interior space;
• and
• the spaced upstanding walls are curved, the spine is curved, and a curvature of the spaced upstanding walls substantially matches a curvature of the spine.