24-05-2012 дата публикации
Номер: US20120124932A1
The invention relates to a covering comprising panels that can be connected to each other mechanically, and having the following characteristics:—adjacent first and second panels ( 1, 2 ) each having a groove ( 6, 14 ) on the sides ( 5, 21 ) thereof that are complementary to each other,—the grooves ( 6, 14 ) each have upper and lower groove sides ( 7, 8; 17, 26 ) having different lengths,—in one of the grooves ( 6, 14 ) a tongue ( 9, 9 a, 9 b, 9 c, 9 d ) is arranged that can be moved relative to the panel ( 1, 2 ) at least in parts, said tongue is suitable for engaging in the corresponding groove ( 6, 14 ) of the adjacent panel ( 1, 2 ) when the adjacent panels ( 1, 2 ) are connected,—the tongue ( 9, 9 a, 9 b, 9 c, 9 d ) has at least one projection ( 16, 33, 42, 43 ), which points in the direction of the area of the longer groove sides ( 7, 17 ) of the other groove ( 6, 14 ) that protrudes relative to the shorter groove sides ( 8, 26 ),—the projection ( 16, 33, 42, 43 ) is intended to be moved transversely to the laying plane ( ) of the panels ( 1, 2 ) in the event of contact with said area of the groove side ( 7, 17 ), wherein the projection ( 16, 33, 42, 43 ) is operatively connected to a locking section ( 13, 29, 32, 35, 41, 47 ) of the tongue ( 9, 9 a, 9 b, 9 c, 9 d ), said locking section can be moved in the direction of the groove ( 6, 14 ) of the adjacent panel ( 1, 2 ) as a result of the motion of the projection ( 16, 33, 42, 43 ),
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