Plate-like products i.e. panels, for joining e.g. wall cover, have tongue limiting recess at product lower side and projected over front end of spring, and detent ribs formed below groove cheek that is displaced to product upper side

摘要

The products (1, 2) have a stop rib (13) and a collection trough (24) comprising a coordinated saw tooth-like cross-section. A detent groove (15) is adapted to a cross-section of a detent (26) and opened at a recess (12) beside the stop rib. A tongue (19) is formed with an end side detent rib (20) pointed to a spring (8). The tongue limits the recess at a product lower side, and is projected over a front end (17) of the spring. Two juxtaposed detent ribs (28, 29) are formed below a lower groove cheek (5) that is displaced to a product upper side (9) opposite to the product lower side.