| 摘要 |
PROBLEM TO BE SOLVED: To prevent molten residue of tows from being accumulated on a cutting edge of a rotatable blade by preventing the tows from entering into a plurality of recess portions that are formed on the cutting edge, in the case of cutting of a web member that has a plurality of fibers including the tows and that is continuous in a predetermined direction, when the rotatable blade cuts the web member in an intersecting direction which intersects the predetermined direction.SOLUTION: There is disclosed an apparatus for cutting a web member along a direction intersecting with a predetermined direction. The web member has a plurality of fibers including tows along the predetermined direction and is continuous in the predetermined direction. The apparatus includes a disk-like rotatable blade member for cutting the web member by relatively moving in the intersecting direction with respect to the web member while rotating about a rotation shaft, the rotation shaft extending along the predetermined direction, the rotatable blade member including a cutting edge on an outer circumferential edge portion thereof, a plurality of recess portions being formed on the cutting edge, the plurality of recess portions being arranged along a circumferential direction of the rotatable blade member, a mean value of lengths of the plurality of recess portions in the circumferential direction being smaller than a mean value of diameters of the tows contained in the web member. |
