Patent ID: 11779852

Abstract:
The invention relates to a toy building block system (100) comprising one or more building blocks (200); and one or more wheels (300); wherein each said building block (200) comprises:a first elongate portion (2) extending in a longitudinal direction (X); a second elongate portion (4) extending in said longitudinal direction (X); an intermediate portion (6) connecting said first elongate portion (2) with said second elongate portion (4) at a middle position (8) thereof; a first end portion (10) extending in a transverse direction (Y), perpendicular to said longitudinal direction (X), from said first elongate portion (2), at a side thereof opposite to said intermediate portion (6), and at a middle position thereof;  a second end portion (12) extending in said transverse direction (Y), perpendicular to said longitudinal direction (X), from said second elongate portion (4), at a side opposite to said intermediate portion (6), and at a middle position thereof;  said building block thereby comprises six protrusions (14) and two voids (16), wherein each void (16) is being defined between an end of said first elongate portion (2) and an end of said second elongate portion (4).  wherein each said wheel (300) comprises a hub (18); and a wheel rim (20);  wherein said wheel rim (20) is surrounding said hub (18); and wherein said wheel rim (20) is being attached to said hub (18) in such a way that said wheel rim is configured to be able to swivel around a rotational axis (A) in relation to said hub;  wherein said hub (18) at a centre (22) thereof comprises a hole (24) extending in an axial direction (A); wherein the dimensions and geometry of said hole (24) are adapted to the dimensions and geometry of one of said protrusions (14) of said building block (200); so as to be able to accommodate said protrusion (14) and thereby hold said protrusion (14) of said building block (200) in place in said hole (24) of said hub (18) solely by friction.