One-piece fastener for securing a lining element in a removable manner on a carrying surface

A system for removably securing a plurality of identical parallel lining elements to a carrying surface of the wall or ceiling type for rapidly and simply lining or finishing said surface, said system comprising:

• at least two rails adapted to be rigidly fixed in parallel relation to the carrying surface to be lined or finished, each rail having two parallel edges defining two lines of support, and
• a set of at least two fasteners for each of said lining elements to be secured, the fasteners of each set serving to secure the lining element corresponding thereto to both said rails by mere pressure locking of the respective pairs of teeth thereof on said parallel edges of said rails;
• each fastener comprising a thin plate rectangular in shape having, on one face thereof, two fastening tongues extending obliquely from said one face plate in two opposite directions for insertion into two corresponding oblique grooves provided in the lining element for securing and holding said lining element, said two fastening tongues extending transversely of the longitudinal axis of said rectangular plate over the full width thereof and being inclined toward one another, said thin plate having on the other face thereof, means capable of reversibly locking said plate by simply pressing said plate on and against a rail rigidly fixed to the carrying surface to be lined or finished said reversibly locking means comprising two pair of teeth disposed and spaced from one another so as to simultaneously lock over two parallel edges forming integral parts of the rail, said pairs being symmetrically disposed one on each side of said rectangular plate so as to allow securing said plate at two points on the same rail, the longitudinal axis of said plate being thus aligned with the rail,
• the fastening tongues of each fastener being inserted and located into the corresponding grooves of each lining element by fitting or by sliding of said fasteners from one of the ends of the lining element up to the location where the fasteners are to be, for locking thereof on said rails,
• each rail being provided with an indentation over at least one of the two edges therefor serving as lines of support for said teeth of said fasteners, such as to ensure an accurate and constant positioning of said fasteners with respect to said rails;
• and, whence, of said lining elements into which said fasteners are inserted, said accurate positioning being obtained by mere locking of said fastener teeth between the teeth of said indentation, said rail indentation teeth being correspondingly aligned.