PLANARLY CONNECTABLE TOY BRICKS COMPRISING AN UNILATERALLY OPEN, BOX-LIKE HOLLOW BODY AND PLUG-IN STUDS AT THE BOTTOM OUTER SIDE AS WELL AS A BOTTOM DOME ON THE BOTTOM INNER SIDE
1. The invention relates to planarly connectable toy bricks comprising an unilaterally open, box-like hollow body and plug-in studs at the bottom outer side and bottom domes on the bottom inner side. 2.1 Differently designed plug-in building blocks comprising an unilaterally open, box-like hollow body and cylindrical coupling pieces/primary pins (pluggable studs) at the bottom outer side as well as secondary pins (floor domes) on the bottom inner side are known from the prior art. 2.2 In order to achieve an increased frictional force in such toy bricks with only a tangential clamping - and proceeding from a toy brick according to the preamble of patent claim 1 - , both the plug-in studs (S) on the upper side of the toy brick (SB) and the floor domes (B) on the bottom side of the toy brick (SB) are according to the invention designed as an n-rectangular straight prism having parallel and equally long side edges. In addition, the ribs are designed as double-webbed retaining protrusions (2), the plug-in studs (S
