Multi-position, foldable armchair with adjustable backrest inclination and seat height

In a multi-position, foldable armchair, of which the backrest inclination and seat height are adjustable, comprising on each side of the seat and the backrest:

• a crossed support, of which the front and rear legs are connected to each other in their substantially median part by a pivot pin,
• a seat, of which the front part is connected to the upper part of the rear leg by a pivot pin and of which the rear part is provided with a rack adapted to cooperate with a finger projecting from the upper part of the front leg,
• a compass element, of which the rear arm is mounted to pivot about a pivot pin connecting the lower part of the backrest to the upper part of the front leg, and of which the front arm is connected to the seat by a pivot pin, the two arms being connected together at their upper ends by a pivot pin,
• an armrest, of which the rear part is connected to an intermediate part of the backrest by a pivot pin and the front part is provided with a rack capable of cooperating with a finger projecting from a part of the compass element,
• on each side, the rack of the seat is disengageable from the finger of the front leg and the rack of the armrest is releasable relatively to the finger of the compass element, so that, in order to fold the armchair, the backrest may be brought into line with the front legs and, concomitantly, on the one hand, the armrests may be folded down on the backrest, whilst the compass elements flatten and, on the other hand, the seat is applied on the flattened assembly:
• backrest/front legs, whilst the rear legs fold on the front legs.