| 摘要 |
A support roll (40) used to suppress shrinkage in the width direction (Y direction) of a strip-shaped molten glass ribbon (G), having in the tip section thereof a rotating member (50) that comes in contact with the molten glass ribbon (G). The rotating member (50) comprises a main body section (53), and a plurality of protruding sections (54) provided along the outer periphery of the main body section (53). Of the rotating member (50), at least the protruding sections (54) are formed using tool steel. |
