Roller for the treatment of paper web material
AssigneeFutura S.P.A.
InventorFabio Perini
Life of this patent
Estimating the term…
Abstract
Roller for treating a paper web, particularly apt to be used within an embossing or a calendering unit, comprising a central fixed shaft (10) linked to a fixed frame (11) on both its ends, on said shaft (10) more low-friction elements (12) being mounted, on the said low-friction elements a tubular skirt (2) being mounted coaxially with the shaft (10), the said skirt (2) being free to rotate about the longitudinal axis (x-x) of said shaft (10) and being subject to vibrations during said rotation. The roller comprises means for dampening said vibrations, said dampening means being provided and acting between the said skirt (2) and the said shaft (10).
Claims4
A roller for treating a paper web, particularly apt to be used within an embossing or a calendering unit, the roller comprising:
- a central fixed shaft linked to a fixed frame on both ends thereof;
- low-friction elements being mounted on said shaft;
- a tubular skirt being mounted on said low-friction elements, said tubular skirt being coaxially with the shaft, said tubular skirt being free to rotate about a longitudinal axis of said shaft and being subject to vibrations during said rotation;
- and
- a means for dampening said vibrations, said dampening means being provided and acting between said tubular skirt and said shaft, said dampening means comprising a pair of disks, each of of said disks being solid to a respective base of said shaft and is coaxial with the said shaft, each of said disks having a portion in contact with two frictioning rings which are connected with said tubular skirt.
Dependencies are inferred from the claim text.