Patent ID: 6524227
Filing Date: 2003-02-25
Classification: B65H,F16C

Abstract:
A roll that can be bent for a web-like material having an axis (Xâ€”X), and a continuous tubular roll mantle (11) of a composite material having two opposite end portions, each end portion comprising:an axle journal (12) having an inner part extending within the end portion of the roll mantle and an outer part protruding out from the end portion of the roll mantle, said inner part being attached to the respective end portion of the roll mantle (11); an articulation member (16) provided on an outer face of the outer part of the axle journal (12); a first support sleeve (13) extending within the end portion of the roll mantle and having an inner surface and an outer surface, said first support sleeve being fixed in the interior of the respective end portion of the roll mantle (11); first and second fastening means (18,19) placed at a distance from one another in the direction of the axis (Xâ€”X) of the roll, said fastening means being fixed to a frame (R) of a machine incorporating the roll; bearings (14,15) having inner races and outer races, the roll mantle (11) being journalled revolving by means of said bearings (14,15) placed at a distance from one another in the direction of the axis (Xâ€”X) of the roll, the outer races of said bearings (14,15) being supported on said first support sleeve (13) and the inner races of said bearings (14,15) being supported on the axle journal (12); a second support sleeve (17) having an inner surface and an outer surface, said second support sleeve (17) surrounding the outer end of the axle journal (12) and extending in a direction of the axis (Xâ€”X) of the roll at least between said fastening means (18,19), the outer end of the axle journal (12) resting by means of the articulation member (16) against the inner surface of the second support sleeve (17) and the outer surface of the second support sleeve (17) being fixed in the fastening means (18,19); and a bending mechanism (30,70,100) arranged between the second support sleeve (17) and the axle journal (12) in order to displace the axle journal (12) in relation to the second support sleeve in a direction transverse to the direction of the axis (Xâ€”X) of the roll and thereby bend the roll mantle (11) into an arc form (FIGS. 2-6).