| 摘要 |
PURPOSE:To significantly reduce the offensive generated odor at the time of extinguishing by automatically closing an extinguishing hole provided in an extinguishing chamber with extinguishing. CONSTITUTION:When an extinguishing operation is performed, a wick retainer 6a moves downward, and the wick 4 is withdrawn lower than an extinguishing hole 10. As a result, a movable body 13 is lowered, and a valve 12 moves downward due to the action of an extinguishing spring 14 as it is regulated by a shaft retaining cylinder 15. Consequently, the extinguishing port 11 is closed by the valve 12. At this time, the vapor coming out of the wick 4 flows from the extinguishing hole 10 to the extinguishing chamber 9 where it is mixed with the fresh air, the resulting mixture gas being ignited to burn in he extinguishing chamber 9 in an explosive manner. The pressure generated by such an explosive burning is released upward through the extinguishing hole 10 to blow out the flame remaining above a guide cylinder 2 and near an outer flame tray 7, ensuring the extinguishing within 2-3sec.
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