US 2004/0110616 A1 · Expander roll

Abstract

An expander roll that has a plurality of metallic, cylindrical roll members is constructed to obtain sufficient liquidtightness, wherein a gap-facing concave portion 19 is formed in the outer circumferential surface of a ring-shaped elastic packing 17 with which a gap 18 between adjoining, cylindrical roll members 6A and 6B is closed, in addition, a required number of concave portions 21 are formed in both side parts of the gap-facing concave portion 19 so as to form pleat-like portions 22 and the outer circumferential surface of the pleat-like portion 22 is fixed to the inner circumferential surfaces of the cylindrical roll members 6A and 6B on the same side as the side of the outer circumferential surface of the pleat-like portion 22.

Claims8

Dependent claims

An expander roll comprising a plurality of metallic, cylindrical roll members attached to an outer periphery of a curved shaft with bearings;

and a ring-shaped elastic packing with which a gap between ends of adjoining, cylindrical roll members is closed, the packing provided inside the ends of the roll members;
wherein outer surfaces of both side parts of a part of an outer circumferential surface of the ring-shaped elastic packing that faces the gap between the roll members are fixed to inner surfaces of the cylindrical roll members, and the ring-shaped elastic packing is deformed in accordance with a movement in a lengthwise direction of the adjoining, cylindrical roll members.

Dependencies are inferred from the claim text.

Expander roll

Life of this patent

Expander roll

Life of this patent

Abstract

Claims8