| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely inhibit a content dispensing operation while keeping a stopper removal operation simple by structuring the stopper with a C-shaped cross-section which inhibits a content dispensing operation by inhibiting the downward movement of a push down operation part being locked with a stem (stem protection tube section) or the like in such a way that its locked condition is released only by the opening operation and not by the pulling operation of the stopper. <P>SOLUTION: The tube section 5 for stem protection includes a vertically grooved part 5a on its outer peripheral face. A stopper 6 includes a C-shaped part 6a to be locked having a pair of vertical protrusive parts 6d matching the vertically grooved part 5a and a mounting/dismounting operation piece 6e extending from the C-shaped part in the backward direction opposite to the front opening part 6b. The stopper 6 is prevented from being disengaged from the tube section 5 by the locking function of the vertically grooved part 5a and the vertical protrusive parts 6d. In order to disengage the stopper 6, the operation piece 6e is held in a direction A, and the stopper 6 is pulled out in the condition where the front opening part 6b is fully opened in a direction B. <P>COPYRIGHT: (C)2013,JPO&INPIT |
