SOUND WAVE FLOATATION DEVICE AND SOUND WAVE FLOTATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a sound wave floatation device capable of suppressing a glass ribbon from being damaged.SOLUTION: A sound wave floatation device 410 includes a diaphragm 411 which has an upper surface radiating a sound wave to a part of 300-800°C in temperature of a glass ribbon 14 of 1-8 m in width and 0.05-3 mm in plate thickness of a width-directionally center part, and a reflector 450 which has an upper surface reflecting a sound wave radiated from a lower surface of the diaphragm 411. The diaphragm 411 has a longer direction thereof in parallel with the width direction of the glass ribbon 14. The upper surface of the diaphragm 411 has an upward convex cross-sectional shape.