Chair adjustable in height. (Machine-translation by Google Translate, not legally binding)

摘要

Child chair adjustable in height, which is essentially characterized because it is constituted from a fixed support frame, related to the frame of the seat of the chair by means of a. Expandable device that allows the elevation thereof, it being provided that said device is preferably constituted by fixed plates fixed in horizontal position on each side of the support frame, and provided by one of its ends a series of recesses, on whose plates are mounted two deformable parallelograms that, being placed in such a way that with two of their vertices make up a vertical line, present their prolonged sides beyond said vertices, forming four arms of which the two lower ones are related to the support frame, articulating one to the aforementioned plate, and the other presenting a pivot that is selectively introduced into any of the recesses that said plate presents, and of which the two upper ones are linked to the frame of the seat of the chair, one of them also articulating to said frame, and the other presenting a pivot that runs along a groove made therein. (Machine-translation by Google Translate, not legally binding)