SINGLE-FLIGHT STAIRS Russian patent published in 2024 - IPC E04F11/22 

FIELD: staircase designs.

SUBSTANCE: invention can be used in construction and everyday life. A single-flight staircase consists of a frame and at least one step fixed to this frame by means of at least one assembly of a mounting bracket, consisting of mounting and rotating legs, each of which is made of a base, and perpendicular its side wall, the base of the tabs contain at least one mounting hole through which the mounting tab is attached to the frame, and the rotary tab is attached to the step, whereas a through arc-shaped groove is made on the side wall of the rotary tab, and the mounting and rotary paws are connected by the side walls by means of two fastening elements, the first of which is the axis of rotation of the tabs, and the second is fixed in the side wall of the mounting tab with the ability to slide along the arcuate groove of the rotary tab, while the arcuate slot is made at a length that allows the planes of the tab bases to be positioned at an angle in the range of 25-90°, and the side wall of one of the legs comprises an additional through hole.

EFFECT: expanding the range of single-flight stairs allowing for a wide range of adjustment of the angle of inclination of the steps and sufficient reliability of fixing the required position of the steps.

6 cl, 6 dwg