Building panel with a mechanical locking system

#The present disclosure relates to a building panel such as a floor panel, a wall panel, a ceiling panel, a furniture component or the like, which is provided with a mechanical locking system, and a method for producing said building panel with said locking system.

#Building panels provided with a mechanical locking system comprising a displaceable and resilient tongue cooperating with a tongue groove for vertical locking is known and disclosed in, e.g., WO2006/043893. The tongue is a separate part and is made of e.g. plastic and inserted in a displacement groove at an edge of a panel. The tongue is pushed into the displacement groove during a vertical assembling of the panels and springs back into the tongue groove of an adjacent panel when the panels have reached a locked position.

#Also known is a locking system for panels comprising a tongue, which is displaceable along the edge of a panel, see, e.g., WO2009/116926, and cooperates with a tongue groove for vertical locking. The tongue is a separate part and is provided with several protrusions, which initially match recesses of the tongue groove. The panels may be assembled by a vertical movement and the tongue is displaced to a position in which the protrusions no longer match the recesses in order to obtain the vertical locking.

#The present disclosure will by way of example be described in more detail with reference to the appended schematic drawings, which shows embodiments of the present disclosure.

#FIG. 1 shows a known locking system with a separate and resilient tongue.

#FIGS. 2A-C shows a cross section of a known locking system with a separate and displaceable tongue.

#A known locking system for building panels, which comprises a displaceable and resilient tongue 30 cooperating with a tongue groove 20 for vertical locking of the short edges is shown in FIG. 1. The tongue 30 is a separate part and is made of, e.g., plastic, and inserted in a displacement groove at a first short edge of a panel. The tongue is pushed into a displacement groove during a vertical assembling of the short edges of the panels and springs back into a tongue groove at a second short edge of an adjacent panel when the panels have reached a locked position. The long edges of the panels are provided with a locking system, which enables assembling to an adjacent panel by an angling movement, to obtain a simultaneous assembling of adjacent long and short edges.

#FIGS. 2a-b show cross sections of different embodiments of the known displaceable and resilient tongue 30 during assembling of two adjacent short edges.

#The panel with the tongue groove is lowered in relation to the panel with tongue 30, which is pushed into the displacement groove by the lowered panel. The tongue springs back, and into the tongue groove, when the panels has reached an assembled position, and locks the panels vertically.