| 摘要 |
A sprayer wherein there is formed in a sprayer body a pressurizing cylinder defining a pressurizing chamber communicating with a pressure accumulating chamber defined by a pressurizing cylinder in which a valve rod is slidably received. The pressurizing cylinder has a smaller diameter than the pressure accumulating cylinder. A piston is slidably inserted into the pressurizing cylinder. When liquid received in the pressurizing chamber is pressurized by bringing down the piston in the smaller diameter pressurizing cylinder, then a higher pressure than the pressing force of the piston is applied by Pascal's principle to the valve rod against the urging force of a pressure accumulating spring disposed behind the valve rod, because the valve rod has a larger diameter than the piston. When the high pressure is applied to the pressure accumulating spring, then a highly pressurized liquid can be sprayed, though the piston itself applies a relatively low pressing force. Since the pressure accumulating spring is received in the larger diameter pressure accumulating cylinder, a spring having a large pressure accumulating capacity can be used.
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