| 摘要 |
According to the invention, the longitudinal member 2 of the frame is constituted by a metal extrusion which, cut to the length of the seating unit, comprises extruded longitudinal grooves 9-10 having a C-shaped cross section opening from these four longitudinal faces, constitutes the main lower element of the seat support and supporting frame on the one hand for a front element 3 and a rear element 4 for supporting the seat and, on the other hand, for L-shaped end cross-heads 8, transversely trapping the seat support elements 3-4 and the back support elements 5 and 6 and whose horizontal arm 8a comprises a wing 18 fitting around the longitudinal member 2 on which it is fixed by screws housed in the upper grooves 10 of this longitudinal member. <IMAGE> |
