Device for connecting walk-on tread-surface and working-surface elements located one beside the other

摘要

The border members (15.1, 15.2) have outwardly projecting engagement-type border legs (18.1, 18.3) on their top inner edges (17.1, 17.2). Engaging over said border legs are the hooks (21.1., 21.3) of a double plate element (60.1) and of a single plate element (60.2), which are braced together by a wedge (62) and thus form the device for connecting tread-surface and working-surface elements located one beside the other. <IMAGE>