ARMCHAIR SUPPORTING FRAME Russian patent published in 2017 - IPC A47C1/03 

FIELD: personal demand items.

SUBSTANCE: in the armchair supporting frame comprising structurally connected and mutually moving against each other supporting elements of a backrest, a seat, armrests, the position changing means of the armrests supporting elements against the supporing frame elements, the armrests supporting elements are represented by branches of one of the arms of a two-armed lever, pivotally mounted on a carriage movable on rails mounted on the backrest supporting element, the means of linear movement of the armrests supporting elements against the backrest supporting element comprise the first linear actuator attached by hinges to the backrest supporting element and the carriage, and means of angular movement of the armrests supporting elements against the backrest supporting elements comprise the second linear actuator attached by hinges to the second arm of the two-armed lever and the carriage. The backrest supporting element is provided with a L-shaped bend, and the first linear actuator is attached by the hinge to the said L-shaped bend of the backrest supporting element. A linear electric actuator is used as the linear actuator. A linear electric actuator with a retractable rod may be used, in particular with a retractable rod of telescopic structure.

EFFECT: provision of opportunities of independent linear and angular movement of the armrests supporting elements.

5 cl, 3 dwg