| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent uneven heating at an effective section or generation of a transfer flaw in a carrying means in a heating furnace comprising a hot plate having a heating source, and a reflector disposed on the opposite side and carrying an article to be heated along the air gap between them through the carrying means by making the fixing position of the carrying means variable. SOLUTION: An article 2 to be heated, e.g. a glass substrate, is carried while being supported by a finger shuttle type finger 3 along the air gap between a hot plate 1 and a reflector 11 and heat treated during the carrying process. The finger 3 is inserted into the lower part of the article 2 held by a proxy pin 4 on an n-th hot plate 1. The article is lifted up through elevation of the finger 3 and advanced at a predetermined pitch and after being moved above an (n+1)th hot plate 1, the article 2 is transferred onto the (n+1)th hot plate 1 through lowering of the finger 3. The article 2 is advanced sequentially by repeating the operation.</p> |
