| 摘要 |
An element formed of plastic matter, intended to be used in a system of elements for composing, by frictional insertion, static or dynamic constructions having a game or didactic purpose, this element forming a cardan joint (A) which comprises a first fork (10), a second fork (20) and an intermediate member (70) connected (in the operative conditions) to the first fork (10) by pivots (71) perpendicular to the axis of the first fork and connected (in the operative conditions) to the second fork (20) by pivots (72) perpendicular to the axis of the second fork, the pivots (72) for connection,to the second fork being perpendicular to the pivots (71) for connection to the first fork, and each fork being provided, at its end opposite the region for connection to the intermediate member, with coupling members (14,24) acting by frictional insertion, conforming a specific system for the composition of constructions. Preferably the coupling member of at least one of the forks conforms the system of composable elements described in EP-A-1.022.040. These elements allow both transmitting a movement between differently oriented movable parts, and installing differently oriented elements or element groups in a construction composed by means of elements of plastic matter connected by frictional insertion. <IMAGE> |
