| 摘要 |
PURPOSE:To maintain the performance of an automatic sprayer for a long period of type by interposing a plastic layer for sealing an internal liquid between a cylindrical elastic body for generating pressure and a hollow tube. CONSTITUTION:Both ends of a cylindrical body 6 formed of a plastic film having a substantially large length and diameter as compared to a bottomed hollow tube 4 are sealed between the mouth 5 and bottom 4B of the tube 4 and the bottom side of a valve part 3. A cylindrical body 7 formed of rubber is inserted thereon. When a user pushes a button 2, the tube 4 is communicated with a nozzle 1 by the action of the valve 3, then the internal liquid subjected to the shrinking force of the body 7 is sprayed. The sprayer using no propellant gas is thus obtd.
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