| 摘要 |
PROBLEM TO BE SOLVED: To provide a wide forming apparatus of glass for forming wide plate glass in forming a glass ribbon by using the thin layer of a vapor film. SOLUTION: When molten glass G is flown down from a glass melting furnace 14 in a ribbon form onto a support 12, water held on the support 12 is instantaneously vaporized by the high temperature of the glass ribbon GL to form the thin layer 18 of a vapor film between the glass ribbon GL and the support 12 and the glass ribbon GL is cast onto the thin layer 18 of the vapor film. Subsequently, both lateral ends of the glass ribbon GL are held by a gear like device 15 and transported, in this case, the gear-like device 15 sends out the glass ribbon GL with holding the both lateral ends of the glass ribbon GL by contacting the gear-like device 15 to a surface of the glass ribbon GL without facing to the support 12 and the glass ribbon GL is formed in a state expanded in the width direction.
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