The
system relates to a
system for joining flat, relatively thin members that adjoin one another along their
narrow face, the members having grooves incorporated into the narrow faces that are parallel to the surface and have groove walls that are parallel to each other, and the joining element being inserted into the grooves of two adjacent members and bridging the partition gap between the members in the manner of an external tongue. In this context the joining element (11) has, on its part (12) that can be inserted in the manner of an external tongue in the longitudinal center on its side that faces away from the
visible surface of the members, one continuous web or a plurality of aligned webs (13) that preferably protrude at a right angle, from which
detent webs (14, 15) protrude on both sides, each of which has a
detent projection (16, 17) that projects toward the external-tongue-like part (12), and on the bottom of the member (1, 2), which faces away from its
visible surface,
detent grooves (7, 8) being provided that run parallel to the adjacent edge at a distance corresponding to the width of the detent webs (14, 15).