Lightweight adjustable folding ergonomic sit/stand chair with optional methods of construction and integration with ancillary accessories

Abstract

A novel lightweight, high stability ergonomic chair, enabling sitting, and leaning in a perched intermediary position between sitting and standing. An inclined saddle type seat is supported by three legs. A forward chair leg is located between the feet of, and beneath the center of gravity of the seated person. Two chair legs extend rearward. The chair permits rocking backwards, diagonally forward, and rocking about the forward chair leg. This 'active seating' provides for easy transitions between sitting and standing, shifting of weight, and conveys an open positive body language. Multiple embodiments and architectures are disclosed multiple configurations including; rigid, folding, and for quick disassembly. The chairs may be constructed of various rigid and flexible materials, with optional features including; armrests, footrests, caster wheels, cushioning, and a standing desk type work surface. The chair eliminates the need for connection to a base platform beneath the user's feet.