| 摘要 |
PROBLEM TO BE SOLVED: To provide a windchill reinforcing device which allows an efficient manufacture of many kinds of glass sheets which are different in curved surfaces. SOLUTION: A plurality of upper blowing heads 32 of the windchill reinforcing device 24 are connected via first link mechanisms which are a quadric crank linkage and are rocked by centering around a prescribed rocking fulcrum. A plurality of lower blowing heads 34 are connected via second link mechanisms which are a quadric crank linkage and are rocked by centering around a prescribed rocking fulcrum. A pair of links 46, 46 of a common link 42 are gear- engaged on the same flat plane.
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