FIELD: mechanisms converting rotary motion to reciprocating motion, employment as summing mechanism. SUBSTANCE: given mechanism presents n pairs of eccentrics placed one inside another in which internal eccentrics are arranged concentrically and external ones are positioned eccentrically to driven link located in center of mechanism. Each eccentric in pair is provided with drive for its rotation relative to another eccentric and last external eccentric is hinged to body. In case of rotation in accord with interrelated laws of any pair of eccentrics driven link moves along straight line, in case of rotation of several pairs of eccentrics driven link moves to distance equal to algebraic sum of eccentricities of individual eccentrics. EFFECT: expanded range of movements of driven link without change of eccentricity of eccentrics. 2 dwg
