| 摘要 |
PROBLEM TO BE SOLVED: To provide a sprinkler head which is not easily affected by external force and is excellent in appearance. SOLUTION: The sprinkler head comprises: a head main body 3 having a water discharge port 2; a cone 5 for closing the water discharge port 2; a glass valve 6 for pressurizing the cone 5 and attaining a closed valve state; a blind cylindrical frame 10 fixed to the flange 7 of the head main body 3 and covering the glass valve 6, where a plurality of oblong holes 20 are formed at intervals in a peripheral direction; a fixing screw 12 provided on the peak plate part 10c of the frame 10 for pressurizing the glass valve 6 in a valve closing direction; and a falling guide means 14 for the cone 5. COPYRIGHT: (C)2007,JPO&INPIT
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