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US 4,378,116 AGranted
Spatial logical toy
AssigneePolitoys Ipari Szovetkezet
InventorErno Rubik
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AssigneePolitoys Ipari Szovetkezet
InventorErno Rubik
Estimating the term…
A spatial logical toy is formed from a total of eighteen toy elements, out of which two sets of eight identical toy elements two connecting elements are provided. The elements of the two sets have cam members with hollows with spherical convex or concave surfaces in-between. The elements are connected by the aid of the cams and the two remaining centrally positioned substantially identical connecting elements each having a T-shape cross-section and when assembled the toy is in the form of a regular or an irregular solid. Fixation is performed by one single screw passing through bores in the connecting elements. In such a manner the toy elements forming the lateral faces of the spatial logical toy can be rotated along the spatial axes and by yielding several variation possibilities the toy is well suitable for stimulating logical thinking activity.
In a spatial logical toy assembled from a plurality of toy elements, of which a predetermined number may be rotated in the direction of the spatial axes starting from the geometrical center of the logical toy, the improvement wherein the spatial logical toy is formed by a total of eighteen toy elements, of which two sets of eight toy elements each comprise substantially cubiforms with integally formed cam elements and each of the sets comprise eight identical toy elements, and two connecting toy elements, and means for joining the connecting toy elements to coact with the cam elements to form an integrated toy body, the joining means comprising a single screw enclosed by a spring.
Dependencies are inferred from the claim text.