HYDRAULIC HINGE, IN PARTICULAR CONCEALED HINGE FOR DOORS Russian patent published in 2018 - IPC E05D3/18 

FIELD: construction.

SUBSTANCE: hydraulic hinge for closing and/or opening and/or checking a closing element, such as a door, a window, a shutter or the like, anchored to a stationary support structure, such as a wall, a floor, a frame or the like. Hinge comprises fixed element (20) anchorable to the stationary support structure and movable element (10) anchorable to the closing element. Fixed (20) and movable (10) elements are mutually coupled in such a way that the latter (10) rotates with respect to the former (20) about first longitudinal axis (X) between an open position and a closed position. One of fixed element (20) and movable element (10) includes at least one working chamber (13) defining second longitudinal axis (Y), which comprises at least one portion (15) which includes plunger member (51) sliding along said second axis and a working fluid to hydraulically dampen the movement of movable element (10). Plunger member (51) is mutually connected with one of fixed element (20) and movable element (10) so that the rotation of the latter (10) corresponds to the sliding of the former (51) and vice-versa. Plunger member (51) divides at least one portion (15) of working chamber (13) in at least two variable volume compartments (18, 19) fluidically communicating with each other. Upon one of the opening or closing of the closing element the working fluid flows from one of first compartment (18) and second compartment (19) to the other of first compartment (18) and second compartment (19), while upon the other of the opening or closing of the closing element the working fluid flows from the other of first compartment (18) and second compartment (19) to the one of first compartment (18) and second compartment (19).

EFFECT: hydraulic hinge, in particular concealed hinge for doors, is proposed.

10 cl, 33 dwg