| 摘要 |
PROBLEM TO BE SOLVED: To reduce time required until a sprinkler head starts after fire breakout by preventing an auxiliary deflector positioned at the upper part of a side wall type sprinkler head from blocking the thermal current of a fire for efficiently transmitting heat to a thermosensitive decomposing part. SOLUTION: A deflector or auxiliary deflector is installed in a folded state normally, and it is expanded when fire water is discharged from a nozzle. Further, the deflector or auxiliary deflector is installed at a guide ring sliding along a frame. COPYRIGHT: (C)2003,JPO
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