| 摘要 |
PROBLEM TO BE SOLVED: To provide a sprinkler head capable of preventing the scattering of broken pieces of a glass bulb in the operation of the sprinkler head using the glass bulb for a thermosensitive disassembling part and allowing the verification of the cause of the breakage of the glass bulb. SOLUTION: The glass bulb 41 is covered with a net 50 formed of a highly extensible resin material or highly heat conductive metallic material, whereby the impact in the scattering of broken pieces of the glass bulb 41 can be moderated. Since the trace of the breakage of the glass bulb 41 is left on the net 50, the cause of the breakage of the glass bulb 41 can be verified.
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