Roll device
AssigneeMWN in Nietern Maschinenfabrik GmbH
InventorsAndreas Walz, Wolfgang Lindörfer
Life of this patent
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Abstract
A roll device as a spreader roll has a rotating hollow roll tube which at the ends thereof is rotatably mounted by means of bearing ends which are mounted in rotary bearings. The roll device has a tension element which runs so as to be eccentric to the central longitudinal axis of the roll tube through the roll tube and by internal tension toward the ends of the roll tube is impinged by a force with pressure. As a result, the roll tube is capable of being bent by way of an impingement of the tension element with a force, the deflection being transversely away from the longitudinal extent of said roll tube, if the tension element is tensioned in relation to the roll tube in an axial direction.
Claims25
A roll device having a rotating hollow roll tube with two ends, wherein said roll tube at said ends is rotatably mounted by means of bearing ends and rotary bearings, wherein said bearing ends are mounted in rotary bearings, wherein said roll device has a tension/compression element, said tension/compression element running through said roll tube, said roll tube toward said ends being impinged by a force, wherein said roll tube is capable of being bent by way of an impingement of said tension/compression element with a force to make a deflection, said deflection of said roll tube being transversely away from a longitudinal extent of said roll tube, wherein said roll tube does not include a support within said roll tube that engages or bears on said roll tube, and wherein said rotary bearings include a torque-free bearing.
Dependencies are inferred from the claim text.