Shape-matching toy apparatus with safety hinge
US4508512A · kind A · utility
15Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1982 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | Oct 25, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2009/0668
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A shape-matching educational toy apparatus includes a first plate having a plurality of different shape apertures therein and a plurality of block elements of corresponding shapes which are receivable in the apertures. The block elements are retained in the apertures by resilient retaining elements until a second plate engages the block elements to push them therethrough. The second plate is hingedly attached to the first plate but resiliently upwardly displaceable relative thereto whereby when an obstruction such as a child's finger is interposed between the plates, injury is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.