Abstract A polygonal element has at each of its sides a coupling device designed to connect said element with an identical or different polygonal element equipped with a complementary coupling device in such a manner as to form a polyhedral spatial structure with a plurality of polygonal elements of this type. In accordance with the invention the coupling device comprises along each side of a polygonal element at least one female recess and at least one male projection complementary to at least one coupling device of other polygonal elements. Each recess has on at least one side parallel to the direction of penetration of the projection of a complementary coupling device an elastically yielding undercut and the projection has an undercut complementary to the recess. The undercuts are aligned together on a common axis so as to permit reciprocal rotation of the two coupled polygonal elements together. Preferably at least one projection has near a recess a discharge notch so as to increase the elastic yielding of the undercut in relief or in depression provided there.
Coupling device for polygonal elements designed to form spatial structures and in particular polyhedral toys wherein a polygonal element has at each of its sides a coupling device designed to connect said element with an identical or different polygonal element equipped with a complementary coupling device in such a manner as to form a polyhedral spatial structure with a plurality of polygonal elements of this type and characerized in that the coupling device along each side of a polygonal element comprises at least one female recess and at least one male projection comlementary to and engageable with at least one like coupling device formed along each of the sides of other polygonal elements, each said recess having an elastically yielding head portion projecting thereinto from at least one of the sides thereof, and the other side thereof extending parallel to the direction of penetration of the projection of one element into the recess of another element, and each projection having in one end thereof a depression complementary to the head portion of the associated recess, the depressions and head portions of two coupled elements being aligned together on a common axis so as to permit reciprocal rotation of the two polygonal elements coupled together, and each of the projections on one side of an element having therein a discharge notch adjacent said one end of the projection containing said depression.
Claim 2
Dependent Claim
230 words
Coupling device for polygonal elements designed to form spatial structures and in particular polyhedral toys wherein a polygonal element has at each of its sides a coupling device designed to connect said element with an identical or different polygonal element equipped with a complementary coupling device in such a manner as to form a polyhedral spatial structure with a plurality of polygonal elements of this type and characerized in that the coupling device along each side of a polygonal element comprises at least one female recess and at least one male projection comlementary to and engageable with at least one like coupling device formed along each of the sides of other polygonal elements, each said recess having an elastically yielding head portion projecting thereinto from at least one of the sides thereof, and the other side thereof extending parallel to the direction of penetration of the projection of one element into the recess of another element, and each projection having in one end thereof a depression complementary to the head portion of the associated recess, the depressions and head portions of two coupled elements being aligned together on a common axis so as to permit reciprocal rotation of the two polygonal elements coupled together, and each of the projections on one side of an element having therein a discharge notch adjacent said one end of the projection containing said depression.
Claim 3
Dependent Claim
42 words
Device in accordance with claim 1 characterized in that said recess has a basically rectangular form and said head portion is complementary to said depression on said one end of the projection, and said projection is complementary in cnfiguration to the recess.