Spatial logical toy
US4378117A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 1981 |
| Grant date | Mar 29, 1983 |
| Priority date | — |
| Expiry date | Aug 3, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F9/0834
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A spatial logical toy in form of a regular geometrical solid, the toy-elements of which are assembled so that halves of the logical toy taken along any axis can be rotated in any direction of any of the spatial axes of the body in relation to the other half. The toy comprises a total of eight toy-elements, seven of which are identically shaped and are designed in such a way, that the corners are directed to the geometrical center of the body forming the spatial logical toy and are formed as profiles with a spherical surface. In the assembled state, between the profiles a hollow connecting element with a spherical surface on the upper part and having a T-shaped cross section is arranged. At the bottom of the hollow part of the connecting elements is a bore and a threaded pivot enclosed by a spring reaching to the bottom of the recess is passed through the bore and the threaded end of the pivot is screwed into a part of the eight toy-element which is directed to the geometrical center of the solid. The eighth toy-element is formed with a spherical cam and the spatial axes passing through the corner of the eight toy-element is directed to the inside of the body and through the surface…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.