PANEL Russian patent published in 2015 - IPC E04F15/02 

FIELD: construction.

SUBSTANCE: invention refers to construction, in particular to a floor panel. A panel has fasteners located on its opposite edges and made in the form of receiving and locking hooks. A receiving hook has an end remotely located from the panel housing and a receiving groove located closer to the housing and open to the upper side. The locking hook is provided with a locking groove located closer to the housing and open to the lower side and has a locking projection located remotely from the housing and inserted in the receiving groove. The locking hook has horizontal fixation surface on its projection. The receiving hook has horizontal fixation surface in the receiving groove, which is located remotely from the housing. On the receiving hook there is a receiving hole through which the locking projection can be inserted in the receiving groove; with that, the locking projection and the receiving hole are made so that the projection end during movement of conjugation without elastic deformation of hook profile is inserted first in the receiving hole so that some part of surface area of horizontal fixation surface of the locking hook contacts the horizontal fixation surface of the receiving hook.

EFFECT: providing strong fixation of panels at their assembly.

20 cl, 6 dwg