SPATIAL HINGED GUIDE MECHANISM Russian patent published in 2010 - IPC F16H21/46 

FIELD: machine building.

SUBSTANCE: spatial hinged guide mechanism includes post, bell crank, two piston rods and two driven links of equal length. Bell crank is hinged to the post and the first piston-rod, the first driven link - to the post and the second piston-rod, the second driven link is hinged to the first piston-rod. Links of every pair "the first piston-rod and the first driven link" and "the second piston-rod and the second driven link" are hinged to each other at middle points. Bell-crank-to-post attachment hinge and piston-rods-to-driven-links attachment hinges are one-degree-of-freedom. Bell-crank-to-first-piston-rod attachment hinges and first-driven-link-to-post attachment hinges are two-degrees-of-freedom. Bell-crank-to-post attachment hinge axis is parallel to plane of piston rods and driven links. Axes of all piston-rods-to-driven-links attachment hinges are perpendicular to plane of piston-rods and driven links. Bell crank length is less than that of the post, and sum of lengths of the said links is smaller than that of the first piston-rod.

EFFECT: increasing useful operating life owing to low wear intensity of contact surfaces of hinge and variety of displayed curves.

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