HINGED STRUCTURE FOR SELF-CLOSING DOORS OR SIMILAR, IN PARTICULAR, GLASS DOORS OR SIMILAR, AND UNIT COMPRISING SUCH STRUCTURE Russian patent published in 2011 - IPC E05F3/20 

FIELD: construction.

SUBSTANCE: hinged structure comprises the first fixed element attached to a door frame, and the first movable element installed on it with the possibility of rotation, attached to the door for rotation around a longitudinal axis between open and closed positions of the door. The hinged structure also comprises closing facilities that act at the first movable element for automatic return of the door into the closed position after its opening. Besides, the hinged structure comprises hydraulic damping facilities that act at the first movable element for counteraction and damping of displacement as the closing facilities close. At the same time both closing facilities and hydraulic damping facilities are installed in the first working chamber arranged inside the first fixed element. The closing facilities comprise the first cam element arranged as a whole with the first movable element and having the first substantially flat contact surface, and the first plunger element, installed with the possibility of displacement inside the first working chamber along the transverse axis between the compressed final position and the expanded final position, which accordingly correspond to the open and closed positions of the door. At the same time the plunger element has the front surface, which is intended for contact with the cam element surface. Besides, the first contact surface of the first cam element is displaced relative to the longitudinal axis by the specified distance so that the front surface of the plunger element in its extended final position is located behind the longitudinal axis to provide for the possibility of the automatic door closure. At that the closing facilities include the first counteracting elastic facility acting at the first plunger element to push the front surface towards the first contact surface of the first cam element. At the same time the first plunger element has a substantially cylindrical side wall and an end wall that shapes the front surface. At the same time the end wall is designed to separate at least one working chamber into the first compartment of variable volume and the second compartment of variable volume, which are adjacent to each other and are connected with the possibility of fluid medium passage, besides, the first counteracting elastic facility is located in the first compartment. The group of inventions also relates to the door hinged unit, which comprises the hinged structure.

EFFECT: development of such a hinged structure, which is convenient in maintenance, has simple and reliable design and low production cost, provides automatic door closing and provides a support for heavy doors, without modification of its behavior and necessity of any adjustment.

22 cl, 48 dwg