| 摘要 |
PROBLEM TO BE SOLVED: To lower the melt position of a glass short pipe and to prevent colli sion of a protrusion with a sash frame during opening of a window by a method wherein a shield member is attached in the middle of the glass short pipe to exhaust the air in the space between two glass plates. SOLUTION: First and second glass plates 2 and 3 are sealed along the peripheries through a spacer and the air in the space between the glass plates is exhausted through a glass short pipe 7 attached on the main surface of the first glass plate 2. The outlet of the glass short pipe 7 is molten and closed in a vacuum space. In this case, a shield member formed of a metal, a precious metal, or a refractory, and infrared rays generated during melting are blocked so as to reach in short of a solder glass 8 and the first glass plate 2 at the periphery thereof. Thereby, the melt position of the glass short pipe 7 is caused to approach the first glass plate 2 and a height (h) of a protrusion end 7a is prevented from exceeding 3mm. |
