Chair with adjustable seat-depth has rigid support plate, upholstered plate, with flexible part, side guide tracks, ridges, tenon blocks and domes.

摘要

The seat consists of a rigid support plate (1) on which is a movable and deformable upholstered plate (2) which has a flexible part(7) forming a seat-recess. The support plate has two side guide-tracks (8) along which slide guide-ridges (6) on the upholstered plate made of deformable plastic. The upholstered plate is fixed with the aid of tenon blocks (3) screwed into domes (9) on the support plate.