SEAT BOX WITH DROP-IN WEBBING ASSEMBLY

摘要

A seat box assembly and method of fabricating utilizing a drop-in webbing assembly secured into a main box and back frame assembly. The webbing assembly has a rectangular frame with elongate members and shorter members and a central girder with a cutout extending between mid-portions of the elongate members. The central girder attachable to the seat box and a central vertical frame member of the back frame assembly. The elongate members having stub portions that fit into slots in the main seat box. A method of repair includes replacing a damaged drop-in assembly with a different drop-in assembly.

主权项

1. A seat box assembly, comprising:
a main box including a front rail and a back rail separated by a pair of side rails to define an interior space; a back frame assembly extending vertically from said main box, said back frame assembly including a pair of side uprights and a middle upright, each of the uprights being affixed to an interior face of said back rail, each of the side uprights of said pair of side uprights extending upwards from a respective one of said pair of side rails of said main box to define an apex at the intersection of the side upright and said side rail; and a drop-in webbing assembly comprising:
a webbing frame including a forward spring rail and a rearward spring rail separated by a pair of cross rails, wherein each end of said rearward spring rail extends laterally beyond each of said cross rails to define a pair of protruding portions of said rearward spring rail;a central girder attached to mid-portions of each of said elongate frame members; anda webbing spanning between said forward spring rail and said rearward spring rail, wherein structure defining a rearward notch is included proximate each apex of said side rails and said side uprights to define a pair of rearward notches, each of said rearward notches including a first lead-in structure on the respective side upright of the respective apex and a second lead-in structure on the respective side rail of the respective apex.