| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact heat treatment device for a glass substrate capable of easily mounting and demounting heaters, and uniformly burning the glass substrate. SOLUTION: In this heat treatment device for the glass substrate wherein a multistage of rail-shaped heater supporting bodies supporting sheet heaters are mounted inside of a furnace casing, sheet heaters are respectively demountably mounted on each of heater supporting bodies, and a glass substrate heating space is formed between the sheet heaters, heater-side rotating rings slidable on the heater supporting faces of the heater supporting bodies are mounted on tip end parts of the sheet heaters, rotating ring accommodating recessed parts for accommodating the heater-side rotating rings in a sunk state when the sheet heaters are accommodated, are formed at a depth part of the heater supporting bodies, and further supporting body-side rotating rings capable of guiding the sheet heaters are vertically movably mounted on a front part of the heater supporting bodies. COPYRIGHT: (C)2004,JPO
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