US Patent 11788567 Set of panels with a mechanical locking device

A set of panels including a first panel with a first main plane and a second panel with a second main plane with a second main surface. The first and second main planes are essentially perpendicular in a locked position. The first and the second panel include a locking device for locking a first edge of the first panel to a second edge of the second panel. The locking device includes an edge groove wherein the edge groove includes a tongue, which is configured to cooperate with a tongue groove of the first panel, in a locked position, for locking the first and the second edges in a first direction which is perpendicular to the first main plane. A first groove surface of the edge groove cooperate with second main surface to lock the first and second panel in a second direction which is perpendicular to the second main plane.