Folding seat assembly

A foldaway base for a seat comprising a pivoting support unit disposable above a floor, an attachment assembly for pivotally attaching said support unit to a floor and having portions attachable to said floor and said attachment assembly permitting said support unit to pivot about a horizontal first axis, an upper frame extending rearwardly from the top of said support unit, means pivotally attaching said upper frame to said support unit for rotation about a second axis parallel to said first axis and disposed upwardly and rearwardly therefrom and disposed adjacent the upper rearward portion of said support unit, and rearward leg means extending downwardly from said upper frame at a rearward part of said upper frame and adapted to engage said floor, a stop means on said support unit, means on said attachment assembly in position for engaging said stop means when the rearward end of said attachment assembly is lifted vertically so that said engagement with said stop means stops rotation of said attachment assembly about said second axis in a direction upwardly rearwardly of said second axis whereby further lifting of the rearward end of said attachment assembly after said engagement with said stop means will cause said support unit to rotate about said first axis in a direction such that said second axis will be caused to first shift laterally of itself first upwardly and forwardly to define a first shifting, and said support unit being constructed for permitting said second axis to move forwardly and downwardly after said first shifting and in response to an urging forward of said attachment assembly with respect to said first axis so that said attachment assembly reaches a desired certain storage position.