Patent ID: 8043461

Claim:
A method for manufacturing fiber reinforced cement board, comprising the steps of: preparing a formed sheet from a slurry containing cement and fiber-reinforcing material through a sheet-forming process, cutting off the formed sheet before being wound around a making roll so that each cut-off formed sheet has the same length equal to a circumference of the making roll, forming a laminated sheet by winding each cut-off formed sheet continuously around a making roll a plurality of times so that every layer made of the formed sheet in the laminated sheet has a cut-off mark, wherein the making roll is equipped with a cutting-off wire accommodated in a lateral groove formed in the periphery of the roll, producing a mat by separating the laminated sheet from the making roll by cutting off the laminated sheet by jumping out the cutting-off wire into the cut-off mark of an undermost formed sheet adjacent to the making roll so that a cut-off section of the cut-off laminated sheet becomes inclined to a bottom surface of the laminated sheet, and hardening and curing the produced mat.