| 摘要 |
PROBLEM TO BE SOLVED: To provide a stopper capable of preventing positional shift and dropping caused by pressing of a pressing head and attachable/detachable by a simple operation.SOLUTION: The stopper includes a peripheral wall 1 having end faces abutting on a lower end of the pressing head 9 and an upper face of a base cap 12 of a priming dispenser, respectively to inhibit pressing of the pressing head 9 and detachably held by a pump system of the dispenser located between the end faces or a protective cover of the base cap surrounding the pump system. The peripheral wall 1 includes: a narrow raised wall portion 2 having a window hole 2a from which an injection nozzle 9a of the pressing head 9 can be exposed and raised along the outer face of the pressing head 9; and a top wall portion 3 integrally connected to an upper end of the raised wall portion 2 and enveloping a top face of the pressing head 9, leaving a clearance t. |
