PREFABRICATED FRAME Russian patent published in 2021 - IPC E04B1/32 

FIELD: construction industry.

SUBSTANCE: invention relates to construction, namely to the device of prefabricated fast-to-construct structures. The prefabricated frame contains curved ribs of the frame connected by clamps, each of which ensures the fixation of three edges in such a position that the axes of the fixed ends of the edges do not intersect. Each of the cells of the frame is formed by six ribs made in the form of identical brackets with bent end elements, while the axes of the end elements are located perpendicular to the axis of the middle section of the rib, and the axis of one end element is rotated around the axis of the middle section of the rib by 105 degrees relative to the axis of the second end element. The clamps are made in the form of a spherical housing that is detachable along the diametrical plane with the possibility of attaching the clamping elements with one fastening element. At the same time, each clamp is made with three through bores for the end elements of the frame ribs, and the outer edges of the bores form curved cheeks on the spherical surface of the housing. The end elements of the frame ribs are provided with protrusions to form a seat for the clamp. The ribs of the frame have a cylindrical or polyhedral profile and are made of metal or non-metal.

EFFECT: expansion of the arsenal of prefabricated frames, namely, the creation of a prefabricated frame of a simple design, providing a spherical dome with the use of identical elements, which facilitates the assembly of the frame.

5 cl, 10 dwg