Belt manufacturing apparatus, folding-back roller, and belt manufacturing method

A folding-back roller used in a belt manufacturing apparatus for manufacturing a belt including a main belt material that has both ends in the width direction wrapped with a rubber sheet, wherein

• the folding-back roller is configured to fold back, from one side of the main belt material to the other side of the main belt material, regions of the rubber sheet that outwardly protrude from both ends of the main belt material in the width direction, the folding-back roller comprising:
• a shaft member;
• a plurality of rotating members that are arranged separated in the axial direction of the shaft member and are rotatable around the shaft member;
• and an elastic member that connects the rotating members in the axial direction and forms a roller surface with which the rubber sheet comes into contact.

A belt manufacturing method for manufacturing a belt including a main belt material that has both ends in the width direction wrapped with a rubber sheet, the belt manufacturing method comprising:

• a step of conveying the main belt material;
• and
• a step of folding back, from one side of the main belt material to the other side of the main belt material, regions of the rubber sheet that outwardly protrude from both ends of the main belt material in the width direction, by means of a folding-back roller, wherein
• the folding-back roller is disposed at both ends of the main belt material in the width direction, and a roller surface that comes into contact with the rubber sheet is formed by an elastic member that can be elastically deformed inward in the radial direction of the folding-back roller.