| 摘要 |
The disclosed subject matter provides a beverage container configured to prevent a beverage from leaking out even when a user tilts the container, and allows the user to easily drink the beverage even when pressure within the container is negative. The beverage container can include a container main body, a base member, and a cap body. The base member can have first ventilation means for regulating a pressure variation in the container main body, and second ventilation means for introducing air from the outside when the pressure within the container main body becomes negative in relation to the outside pressure and capable of preventing leakage of a liquid beverage contained in the container main body. The cap body can include ventilation open/close means and the like capable of changing the state of the first ventilation means to a ventilation state or a closed state. The ventilation open/close means can be configured to bring the first ventilation means into the closed state when in a portable state such as when the user carries the beverage container, and to bring the first ventilation means into the ventilation state when in an operating state.
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