| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize an accumulator sprayer. SOLUTION: The accumulator sprayer has a cylinder 4, into which a hollow stem 5 is inserted and which has a check valve 4b in a suction port of contents. A sucking/pressurizing structure for spraying the contents by sucking and pressurizing between the cylinder and the hollow stem is constituted of a valve 6a having a tip part in contact with the check valve, a piston 6b holding the valve not to fall out and to be movable, back and forth and engaged with the inside of the hollow stem, an elastic member 6c pressing the valve to the check valve and an elastic member 6d for closing the flow passage of the contents by pressing the valve with the hollow stem in the opposite direction to the valve to bring the piston into contact with the valve seat of the valve. A seal part formed from the piston and the valve seat of the valve is forcibly opened by arranging a slide part slidable back and forth together with the hollow stem in the cylinder while keeping a liquidtight state between the inside wall surface in the piston and bringing the tip part of the valve into contact with the check valve in a state that the hollow stem is pushed through. |
