| 摘要 |
PROBLEM TO BE SOLVED: To provide a sprinkler head which is environmentally suitable, is highly corrosion-resistant, and has no limitation for the mounting position. SOLUTION: The sprinkler head comprises: a valve body for blocking a discharge port; a thermosensitive decomposition part which supports the valve body and consists of a cylinder and a piston; and soldering which is accommodated in the cylinder and works as a thermosensitive body pressed by the piston, wherein an organic compound which has a melting point of a temperature ranging from 60 to 150 degrees, is used as the thermosensitive body instead of the soldering, and is insoluble in water is provided. In addition, the organic compound which is highly sensitive to a temperature, shows high hardness, and is hardly deformed by a load in comparison with the thermosensitive body using the soldering is used for the thermosensitive body. COPYRIGHT: (C)2007,JPO&INPIT
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