FRAME ASSEMBLY FOR SHEET MATERIAL Russian patent published in 2021 - IPC E06B3/54 E06B3/64 E06B3/66 

FIELD: material processing.

SUBSTANCE: application describes a frame assembly for sheet material. The frame assembly contains: the first internal frame section, made with the possibility of installation to the first peripheral section of the first surface of sheet material, wherein the first peripheral section is adjacent to the peripheral edge; the second separate internal frame section, made with the possibility of installation to the second peripheral section of the second surface of sheet material, while the second peripheral section is adjacent to the peripheral edge, and the second surface is opposite to the first surface; and the external frame section for receiving sheet material with internal frame sections installed to it, wherein the external frame section contains the first and second protrusions. The first section forms a space made with the possibility of receiving the first protrusion of the external frame section, whereby the space of the first internal frame section interacts with the received first protrusion to limit the movement of the first internal frame section relatively to the external frame section.

EFFECT: technical result is obtaining frame assembly for sheet material.

23 cl, 6 dwg