Patent ID: 9565944
Date: 2017-02-14
CPC Classifications: A47C

Claim:
1. A chair of adjustable height comprising a. a first frame having first and second sides and forming first and second platforms secured to one another at an angle, b. a second frame having a first side structure and a second side structure and at least one cross member secured to and extending between said first and second side structures, c. said first frame extending between and being pivotably attached at first and second pivot points to said first and second side structures of said second frame, d. each of said side structures of said second frame having at least one support leg structure which is stable in either of two rotational support positions rotationally spaced from one another and supporting said pivot points at two different heights above a horizontal support surface, e. a first one of said at least one cross member being positioned to support said first platform in a seat-forming position for said chair, with said second platform forming a backrest for said chair, when said side structures are in a first one of said rotational support positions, f. a second one of said at least one cross member extending between said side structures and positioned to support said second platform in a seat-forming position for said chair, with said first platform forming a back rest for said chair, when said side structures are in the second one of said rotational support positions, g. in which each of said side structures comprises a grid of attached structural elements including first and second elongated elements secured together at an angle to one another, said first element being longer than said second element, and, with said side structures in said first rotational position, said first element being upright to form a chair leg and said second element being supine to form an arm rest, and, with said side structures in said second rotational position, said first element being supine to form an arm rest and said second element being upright to form a leg.