CAP

摘要

A cap to be attached to an extraction port of a container includes a cap main body detached from the container at time of opening, a ring remained on a side on which the container exists at the time of opening, and a passage portion formed separately from the cap main body and provided in the cap main body and the ring. The passage portion includes a leg portion provided in the ring and the cap main body. At least an upper portion of the leg portion provided in the cap main body and a middle portion between the upper portion and a lower portion of the leg portion provided in the ring communicate with each other. When the middle portion of the leg portion is broken, a state of a detection member provided in the passage portion changes.

主权项

1. A cap configured to be attached to an extraction port of a container, comprising:
a cap main body detached from the container at time of opening; a ring remained the container at the time of opening; and a passage portion, wherein the passage portion is formed separately from the cap main body and the ring and attached to the cap main body and the ring, or the passage portion is formed by covering a side surface and an upper surface of the cap main body with a cover and disposed in the cap main body and the ring; wherein the passage portion contains a detection member; wherein the passage portion includes a leg portion provided in the ring and the cap main body; wherein at least an upper portion of the leg portion provided in the cap main body and a middle portion between the upper portion and a lower portion of the leg portion provided in the ring communicate with each other by a passage of the passage portion through which at least one of air and the detection member passes; and wherein, when the middle portion of the leg portion is broken, a state of the detection member provided in the passage portion changes.