Gearing and drive mechanism for construction toy system

Details Gearing and drive mechanism for construction toy system Gearing and drive mechanism for construction toy system

1993-06-03

1994-09-13

Hafer, Robert A.

Amusement devices: toys

Construction toy

Interfitting elements

446124, 446 85, 446 90, A63H 3306

Patent

active

053464206

ABSTRACT:
A gearing and drive mechanism is provided for a construction toy system, in which a coherent structure can be assembled from a series of rod-like struts and hub-like connectors, wherein the struts have specially contoured ends engageable by lateral, snap-in assembly with pairs of contoured gripping arms on the connector elements. Upon snap-in assembly, the struts are effectively rigidly joined with the connectors. Spur gears and pinions can be rotatably supported in the structure using struts and connector elements providing a gear train for converting the output of the motor to driving an element of the construction toy system. The construction system has a graduated progression of strut lengths, such that a first length is of a size to form a base of an isosceles right triangle for which the next length of the progression is of a size to form a hypotenuse. Spur and pinion gears have a size ratio of approximately 2.4 at the pitch diameter to accommodate assembly of useful drive gear mechanisms of various speed ratios and mechanical advantages.

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"Motorized Tinkertoy" Ad, Dated Mar. 10, 1966.

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