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US 5,507,899 AGranted
Method of manufacturing an endless belt for a dewatering press
AssigneeYamauchi Corporation
InventorsAtsuo Watanabe, Kenjiro Nakayama, Takahisa Hikida
Life of this patent
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Abstract
An endless belt in which a fibrous material is dispersed in a substantially uniform manner all over an endless elastic body layer is provided. A non-woven tape is impregnated with a polyurethane elastomer material liquid and wound and layered on a supporting belt, and then, after curing the polyurethane elastomer material liquid to form an elastic body, it is removed from supporting belt.
Claims14
A method of manufacturing an endless belt for a dewatering press, comprising the steps of:
- impregnating a liquid elastic body precursor into a fibrous material tape;
- winding and layering said fibrous material tape impregnated with said elastic body precursor on a supporter having an endless peripheral surface, the winding of the fibrous material tape forming an inner side adjacent the supporter;
- arranging at least one reinforcing body on the fibrous material tape during the step of winding and layering, the reinforcing body being arranged in at least one row and being varying in distance from the supporter such that the at least one row is inclined and non-parallel to the inner side adjacent the supporter;
- during arranging of the at least one reinforcing body, the reinforcing body being wound on the fibrous material tape such that after winding and layering is completed, the reinforcing body that has been wound is closer to the inner side of the fibrous material tape, which is adjacent the supporter, than to the outer peripheral side of the completed winding of the fibrous material tape;
- curing said elastic body precursor impregnated in said layered fibrous material tape to form an elastic body layer;
- and
- removing said elastic body layer from said supporter.
4 more elements
Dependencies are inferred from the claim text.