PANEL, PRINCIPALLY, FLOOR PANEL Russian patent published in 2012 - IPC E04F15/02 

FIELD: construction.

SUBSTANCE: panel at least on two opposite side faces is equipped with corresponding hooks, at the same time the first hook is formed by profiling open towards the upper side, and the second hook is formed by profiling open towards the lower side, which on the first hook forms a ledge directed towards the upper side, and on the second element it forms a ledge directed substantially towards the lower side. Two identical panels are arranged as capable of connection and fixation to each other in horizontal (H) and vertical (V) directions by means of a vertical jointing movement. At least one of ledges during the jointing movement diverts in horizontal direction, and then with the help of the vertical fixation is latched behind the fixing face stretching substantially in horizontal direction (H). At least one of hooks is segmented, forming multiple elastic elements arranged in parallel at a distance from each other. Elastic elements are arranged at the angle (α) to the longitudinal axis (L).

EFFECT: invention provides for reliable fixation of panels.