| 摘要 |
PROBLEM TO BE SOLVED: To provide a water discharge head that offers a larger water discharge and thus a sufficient fire extinguishing effect to that area in its effective discharge range which is most effective in fire extinguishment. SOLUTION: The water discharge head of a sidewall type has a reflection surface 7 inclined upward in the discharge direction above two deflectors 4 and 6 extending upward from the back of an outlet 3. The reflection surface 7 has in its middle a reflection concave 8 that reflects discharge water so that it is partly constricted to have an arc discharge water.
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