DOOR CLOSER Russian patent published in 2021 - IPC E05F1/02 E05F3/02 

FIELD: housing and communal services.

SUBSTANCE: invention relates to the field of housing and communal services and can be used to close the doors of residential and public buildings, outbuildings, as well as street doors. The door closer contains a cable attached to the upper part of the swing door leaf, which, bending around the fixed blocks on the wall of the building, is connected with the other end to a load placed in a vertically installed guide tube with a damped end. In this case, there is a gap between the side walls of the load and the guide tube. In addition, the load is positioned for reciprocating movement in the guide tube. In addition, in the horizontal plane to the upper part of the door leaf, a part is mounted in the form of a sector of a circle with a groove on the arc of the sector's circumference, the center of the sector of the circle being located on the vertical axis of rotation of the door, and the cable attached to the upper part of the door and the load, bends around the sector of the circle along the groove.

EFFECT: invention with a simplified manufacturing technology and high reliability allows increasing the smoothness of the door when it is closed.

1 cl, 2 dwg