摘要 |
An antipollution cap comprises a base member ( 7 ) attachable to an eyedrops container (A) for containing a fluid, a overcap ( 8 ) mountable on the base member ( 7 ), a pressing member ( 9 ) inserted into and held by the base member ( 7 ) to be slidable relative thereto, with a groove portion ( 91 ) formed in a side face thereof for guiding the fluid to the outside, the pressing member being pressed toward the eyedrops container (A) by the overcap ( 8 ) to cancel a sealed condition of the eyedrops container (A), a first tight contact member ( 11 ) provided on a tip end portion ( 77 ) of the base member ( 7 ) to be placed in tight contact with the pressing member ( 9 ) from outside and yet allow the fluid to be discharged therethrough, and a second tight contact member ( 12 ) provided on an inner periphery of the base member ( 7 ) to be placed in tight contact with the pressing member ( 9 ) in a pressed position thereby preventing the fluid from being discharged therethrough and yet allowing ambient air to flow therein.
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