PANEL AND FASTENING SYSTEM THEREOF Russian patent published in 2004 - IPC

FIELD: construction units, particularly floor panels and fastening systems. SUBSTANCE: panel narrow sides have fixing profiles. Profile of one long narrow side, profile of opposite narrow side and profiles of other short narrow sides add each other such that panels may be connected laid panel along free narrow sides thereof. At least profiles of long narrow sides are made as mating profiles creating geometrical closure and panels may be secured one to another by rotational connection movement. Corresponding profile creating geometrical closure has extension formed on opposing narrow plate side. Extension upper wall directed out of base has tilted cut, which creates free space for common hinge movement. EFFECT: increased connection rigidity. 22 cl, 12 dwg