Abstract: Track fastener apparatus for use in anchoring seats or cargo with a locking track that has a slot with spaced cut-out portions extending through the upper surface of the locking track from one side to the opposite side. The track fastener apparatus includes a housing and two track studs that are secured to the underside of the housing whose end portions are adapted to be received by the spaced cut-out portions. The track studs each have a shank portion that is adapted to slide within the slot in the locking track.

Abstract: A lightweight, economically constructed support structure for vehicle seats having a minimum number of components having a substantial commonality and a number of interchangeable components. The seat support structure includes a pair of spaced horizontal tubular members which extend beneath individual seating stations. These tubular members are maintained in a predetermined spaced relationship by a multiplicity of spacing members each located adjacent to the individual seating stations and adapted to support the pivotable armrest situated between each seating station. The horizontal tubular members and associated structure support a diaphragm of fabric or the like at each seat location which is stretched between and fastened to the forward tubular member and a plate member supported and located in proximity to the rear tubular member. These diaphragms are adapted to support the individual seat cushions at each seat location.