| 摘要 |
There is provided a cap body of a beverage container where a large amount of beverage in a container body doesn't flow out, and a lid member is not vigorously released even if hot beverage is put in the container, and where a degree of freedom to select a spring is improved by alleviating impact force in an opening operation, the cap body of the beverage container comprising: a cylindrically-shaped drinking mouth member releasably provided in a mouth portion of a container body; a lid member connected to the drinking mouth member via a hinge axis; a spring for urging the lid member to the opening direction; and a lock member provided in a position against the hinge axis of the drinking mouth member for maintaining the lid member in a closing state, wherein the drinking mouth member comprises a drinking mouth formed in the lock member side of a peripheral wall of the upper opening; a bottom wall where hinge axis side is made higher than the drinking mouth side; a liquid hole formed in the drinking mouth side and an air hole formed in a hinge axis side on a connection line between the hinge axis side and the lock member side, and the lid member comprises an inner cap provided with a seal member for sealing the liquid hole and the air hole, and furthermore, a shoulder member provided in the container body is connected to the lid member and the hinge axis, and the hinge axis supporting portion of the shoulder member is provided with a protrusion portion to which the lid member slidably contacts in an opening operation of the lid member.
|
