Patent ID: 9296196
Filing Date: 2016-03-29
CPC Classification: B41F

Claim Text:
1. A printing unit for variable-format offset printing presses, comprising a support structure, a plate cylinder supported by the support structure for rotation about a first axis, an intermediate cylinder supported for rotation about a second axis parallel to the first axis, and an impression cylinder supported for rotation about a third axis parallel to the first axis and to the second axis, wherein the intermediate cylinder or the impression cylinder is supported at its axially opposite ends by respective supporting members each carried by a respective tilting lever supported by the support structure so as to tilt about a fixed tilting axis parallel to the first, second and third axes, whereby the second axis or the third axis, respectively, is movable along a circular path with a fixed centre on the tilting axis, wherein the impression cylinder or the intermediate cylinder, respectively, is supported at its axially opposite ends by means of respective supporting members slidable along respective linear guides carried by the support structure, whereby the third axis or the second axis, respectively, is movable along a straight path, and wherein each of the supporting members of the intermediate cylinder is connected to a respective supporting member of the impression cylinder by a respective linear actuation device comprising a first element and a second element movable relative to each other along a direction of relative movement (y), the first element being hinged to a respective supporting member of the intermediate cylinder and the second element being hinged to a respective supporting member of the impression cylinder.