| 摘要 |
PROBLEM TO BE SOLVED: To provide a delivery container rapidly discharging air in a container body. SOLUTION: A cylinder member 10 is fitted in a neck part 3. An operating member 30 having a discharging passage is penetrated in a cylindrical piston member 20 fitted in the cylinder member 10 in a vertically movable manner. A seal part 15 is circumferentially provided on the inner surface of an intermediate part in the vertical direction of the cylinder member 10. When the operating member 30 is slidably brought into contact with the inner circumference of a seal part 15 through the sliding of the piston member 20 and the operating member 30 with respect to the cylinder member 10, the operating member 30 separably divides the inside of the cylinder member 10 into a pump chamber above the seal part 15 and a communication chamber below the seal part. When the operating member 30 further slides, a content in the communication chamber is pushed back into the container. When the piston member 20 further slides by the stroke smaller than the descending stroke of the operating member 30, the operating member 30 is separated from the piston member 20, the discharging passage is opened, and the content in the pump chamber is discharged via the discharging passage. COPYRIGHT: (C)2011,JPO&INPIT
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