FIELD: mechanical engineering.
SUBSTANCE: crank mechanism of a variable structure is comprised of a closed four-link kinematic chain including a column, a crank arm, a driving and driven cranks and an apparatus for transitioning the mechanism through dead positions, made in form of an elastic element installed in a closed circuit of a hinged four-bar, the crank arm whereof is equipped with an adjustable apparatus for reproducing asymmetric closed curves.
EFFECT: simplified design, increased working area and expanded kinematic and operational capabilities of a hinged crank mechanism of a variable structure are provided.
10 cl, 9 dwg
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