FRAME FOR DOORS AND WINDOWS WITH ATTACHED AND DETACHED RAILS Russian patent published in 2011 - IPC E06B3/46 

FIELD: construction.

SUBSTANCE: window and door frame comprises an upper and lower elements of the frame, made with grooves to install rails, a rail structure with an insert that corresponds to a groove for installation of the rail, where the insert of the rail structure has the same configuration, which may be installed into the groove to install the rail and engaged with it. The distance between the opposite side of the upper frame element and the opposite side of the lower element of the frame is equal or more than the height between the upper edge and the lower edge of the door frame. The door frame and the roller arranged on its lower edge is placed onto the upper surface of the rail structure. The length of the rail structure is less than the total length of the frame element.

EFFECT: invention makes it possible to increase reliability of the structure and to simplify frame cleaning.

8 cl, 12 dwg