Magnetic module and construction kit
A toy construction kit has a plurality of magnetic modules, each with a housing having a plurality of sides, each side having an internal hollow. A magnet is contained within each of the hollows at a given polar orientation relative to the housing and the hollow. The hollow has dimensions that permit the magnet to move within the hollow, but substantially constrains the magnet to the given polar orientation relative to the housing. When a side of a module is placed near a side of another module, they are bound by magnetic attraction by the respective aligned magnets, either because the polar orientations are opposite when they are initially juxtaposed or due to shifting of one or both magnets in their respective hollows to achieve relative polar opposition.
1. A toy construction kit having a plurality of magnetic modules, each of which includes a housing having a plurality of sides, each of said plurality of sides having an internal hollow, and a magnet contained within said hollow at a given polar orientation relative to said housing and said hollow, said hollow having dimensions that permit said magnet to move within said hollow while substantially constraining said magnet to said given polar orientation relative to said housing.
2. The toy construction kit of claim 1 , wherein the magnet is elongated in one dimension defining a longitudinal dimension and has a non-circular cross-sectional shape perpendicular to the longitudinal direction.
3. The toy construction kit of claim 2 , wherein the non-circular cross-sectional shape is at least one of triangular, rectangular, square, hexagonal or trapezoidal.
4. The toy construction kit of claim 2 , wherein the hollow has a cross-sectional shape mating with the cross-sectional shape of the magnet, preventing the magnet from rotating on a longitudinal axis.
5. The toy construction kit of claim 1 , wherein the hollow is elongated, defining a longitudinal dimension and the hollow permits the magnet to be displaced in the hollow longitudinally.
6. The toy construction kit of claim 2 , wherein the hollow is dimensioned to substantially prevent the magnet from rotating about an axis of rotation along the longitudinal dimension of the magnet, but permits the magnet to slide in a longitudinal direction within the hollow.
7. The toy construction kit of claim 6 , wherein the longitudinal dimension of the hollow approximates twice a longitudinal dimension of the magnet.
8. The toy construction kit of claim 1 , wherein the magnet includes a plurality of magnets.
9. The toy construction kit of claim 8 , wherein the plurality of magnets are separated by at least one non-magnetic spacer.
10. The toy construction kit of claim 1 , wherein the housing includes at least two sub-portions, capable of being assembled to define the hollow containing the magnet.
11. The toy construction kit of claim 1 , wherein at least two of the plurality of magnetic modules may be magnetically held to one another at a plurality of relative positional offsets.
12. The toy construction kit of claim 11 , wherein the plurality of positional offsets are offset in a direction parallel to the longitudinal direction of at least one of the internal hollows.
13. The toy construction kit of claim 12 , wherein the dimensional range of positional offsets is limited by the dimensions of the internal hollows within the housings of the magnetic modules held together and the longitudinal dimensions of the magnets contained therein.