Positioning structure adjustable in height for armchairs and similar. (Machine-translation by Google Translate, not legally binding)

摘要

Positioning structure adjustable in height for seats and the like, characterized in that it is constituted by a chassis frame for the seat, which bears articulatedly fixed on its sides a few straps as braces, which straps at the other ends are articulated to its once with respective paths brackets-supports designed to be rigidly fixed to the supporting base frame of the assembly, one of said braces on each side, elbowed in an extension beyond the corresponding articulation with the respective bracket-support and joined with said extension to the own frame by means of a tensioned spring; all this in such a way that with this structure the seat is selectively adaptable to different positions of use in different heights. (Machine-translation by Google Translate, not legally binding)