Stacked keys arrangement - includes recessed and protruding key eyes for compact stacking

摘要

The key eyes which may be of coloured plastics, have protruding and recessed rim profiles, enabling stacking of keys into compact unit. Keys (1) include an eye (2) with attached key bit (2) which may have a circular protrusion (4) and groove (5). The protrusion (4) on entering the groove (5) enable perfect stacking keys, yet also permitting keys to be pushed into direction (A) for selective use.