Importance

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Abstract

A constructional toy set has building members and coupling members having dimensions which are equal to, multiples of, or specific fractions of a basic unit size, have a basic thickness or a multiple thereof, have through holes of basic hold diameter or multiples thereof with shapes symmetrical to either or both longitudinal and transversal axes thereof. End regions of the members may be semi-circular in form, and the through holes are positioned on the longitudinal axis or symmetrically to the sides thereof and at distances from themselves and the outermost points of the end region equal to set fractions of the basic size, equal to the basic size or to multiples thereof. The coupling members may be joined by threaded bolts and whose length is several times as long as the basic thickness. Nuts engage the bolts to lock the coupling members together. The configurations, dimensional proportions and relationships result in structural assemblies which are highly esthetically pleasing, with the figures simulating common animals, and which develops children's sense of space, form and harmony.

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First Claim