Method for Cutting Belt-Like Member, and Apparatus Therefor

A belt-like member cutting apparatus for manufacturing a plurality of strip members by cutting a belt-like member in a length direction of the belt-like member, the cutting apparatus comprising:

• a position detecting unit configured to detect, in a captured image of a cross section of one end in a length direction of a belt-like member having embedded therein a plurality of reinforcement cords arranged in parallel to each other and a weft thread provided so as to intersect the reinforcement cords, a position in a width direction of the belt-like member of an image of each of the reinforcement cords appearing in the cross section, and to set detection numbers representing an arrangement order of the reinforcement cords from a first end side in the width direction of the belt-like member;
• an interval calculating unit configured to calculate an interval L between the reinforcement cords for which the detection numbers of the reinforcement cords are adjacent to each other;
• an actual number setting unit configured to set an actual number that is obtained by correcting, depending on a ratio of the interval L to an average cord interval Lm between the adjacent reinforcement cords, a larger detection number of the detection numbers of the reinforcement cords for which the detection numbers are adjacent to each other such that the larger detection number is made larger;
• a cutting position determining unit configured to determine a cutting position in the width direction of the belt-like member using the actual number, such that the number of the reinforcement cords included in a strip member made by the belt-like member is a set number;
• and
• a cutter configured to manufacture the strip member by cutting the belt-like member at the determined cutting position.