Disclosed is a roller with an outer mantle and an inner shaft, the middle part outer diameter of the inner shaft being greater than the outer diameter of its other parts and the outer mantle having been joined by shrinking to the middle part of the inner shaft. The outer mantle parts being supported by the greater diameter middle part of the inner shaft and consisting of two pipes welded together, the ends of the mantle have been thinned on the inside so that their inner diameter is the same as the outer diameter of the inner shaft middle part and the combined length of the outer mantle is the same as the length of the middle part of the inner shaft. In addition the middle part of the inner shaft has been fitted so that when said pipes are welded together the middle part is pressed between the shoulders of the thinned parts of the outer mantle.
5093974 - Bendable sleeved roll - Owned by United Engineering Inc. (Pittsburgh, PA) International Rolling Mill Consultants, Inc. (Pittsburgh, PA)
A sleeved roll generally has a bendable arbor. The sleeve is shrunk-fit on the arbor such that the dimensional difference between the arbor diameter and the sleeve inner diameter varies along the arbor axis. Thus the radial stresses induced by the shrunk-fit vary along the axis of the arbor. The sleeved bendable roll may be employed as a work roll or as a backup roll in a rolling mill. The roll is assembled by providing a bendable arbor having an axial surface and a hollow sleeve, axially contouring at least a portion of the arbor surface or the sleeve inner surface, positioning the hollow sleeve having an inner surface adjacent the arbor, and then shrink-fitting the sleeve inner surface on the axially convexly contoured surface of the arbor.
The present invention provides a liquid toner type image formation apparatus squeeze roller capable of generating a uniform pressure in the longitudinal direction of the roller portion and rotating the roller portion according to the rotation of the shaft portion even after a long period of use. The squeeze roller 1 comprises: a roller portion 2 having a metal pipe 4 and an elastic body 5 formed with a uniform thickness on the metal pipe 4; a press fit member 7 inserted in the center portion of the metal pipe 4 in the longitudinal direction; a shaft portion 3 having a diameter reduced at both ends in the longitudinal direction and a center portion having a length almost identical to that of the press fit member 7 and pressed against the inner surface of the press fit member 7; metal pins 6 fixed at an identical distance from the center of the roller portion and the press fit member in the longitudinal direction.
A roll with an axially extending core having a central portion and two end portions. A shell member that has a central portion and two distal end portions surrounds the core and is attached to the core at their respective central portions such that the distal end portions of the shell member are unsupported to enable them to deflect in relation to the adjacent end portions of the core. The core has a duct therein that communicates with at least one substantially annular passageway provided in the shell member for permitting a temperature controlling fluid medium to flow to the passageway from a source that is attached to the duct.
6935993 - Roll - Owned by Voith Paper Patent GmbH (Heidenheim,DE)
The invention relates to a roll, including a roll tube that is supported exclusively, at least in radial direction, in an axially central area on a continuous roll support, whereby outside of the central area the roll tube is positioned at a distance A from the roll support, thereby permitting a deflection of the roll tube relative to the roll support. The invention is further characterized in that the roll tube is equipped with increased weights on both ends in order to create a deflection component in the respective ends due to the respective effective additional weight.
The present invention provides a method for producing a bending-resistant, elongated body, preferably a shaft or beam. The invention is characterized in that an elongated blank is produced having at least one cavity extending essentially along the entire length of the blank, the inner surface of which cavity is at a distance from the mass center of the blank seen in a section at right angles to its longitudinal axis and that affixed in the cavity is a fiber composite body with an outer surface essentially congruent with the inner surface of the cavity and that majority of the fibers in the fiber composite body both extend essentially parallel to the longitudinal axis of the elongated blank and are elongated along the whole of its length. The invention also relates to an arrangement produced according to the method.