Amusement devices: toys – Construction toy – Having parts assembled for relative movement
Patent
1990-06-26
1992-03-31
Hafer, Robert A.
Amusement devices: toys
Construction toy
Having parts assembled for relative movement
446116, 446120, A63H 3308
Patent
active
051003589
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.
REFERENCES:
patent: 3238586 (1966-03-01), Stoffel
patent: 4055019 (1977-10-01), Harvey
patent: 4253268 (1981-03-01), Mayr
Hafer Robert A.
Kenealy David J.
LandOfFree
Coupling device for polygonal elements designed to form spatial does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coupling device for polygonal elements designed to form spatial , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupling device for polygonal elements designed to form spatial will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2255572