Patent-family-89428585

A modular toy construction system (10) comprising a first construction element (11) and a second construction element (12), the first construction element (11) comprising a first connector (41) and the second construction element (12) comprising a second connector (42), the first and second connectors (41, 42) being configured for connecting the first and second construction elements (11, 12) to each other in a coupling direction (D_i), wherein the first connector (41) comprises at least two pairs of connector surfaces (60), where the two connector surfaces (60) of each pair of connector surfaces (60) are formed in parallel to each other, wherein the connector surfaces (60) of one of the two pairs of connector surfaces (60) on the first connector (41) are formed at an angle relative to the connector surfaces (60) of the other of the two pairs of connector surfaces (60) on the first connector (41), wherein the second connector (42) comprises a receiving part (50) having a cross-sectional shape relative to the coupling direction (D_i), mating with a cross-sectional shape of the first connector (41), and configured for receiving and connecting to the first connector in a pressure fit with the connector surfaces (60) of the first connector (41), wherein the receiving part (50) of the second connector (42) comprises a set of carrier surfaces (51) each one carrier surface (51) being configured to be adjacent to and facing a specific one of the connector surfaces (60) on the first connector (41), when the first connector (41) and the second connector (42) are connected to each other, wherein a set of functional surfaces (100) is formed on at least a subset of the carrier surfaces (51) of the receiving part (50) of the second connector (42); wherein each functional surface (100) is formed as a top surface of an island (101) and elevated above the carrier surface (51), and wherein, at least one of the functional surfaces (100) is a pressure surface (200), wherein the pressure surface (200) is configured to provide a deformation of a connector surface (60) of the first connector (41).