CHECK VALVE OF CONTAINER, CONTAINER AND SPOUT UNIT

摘要

PROBLEM TO BE SOLVED: To provide a check valve of a container and the container in which a close-fitness between the valve member and a resilient member is increased and a sealing performance is improved.

SOLUTION: This unit has a resilient membrane 7 installed at a container spout 2 and formed with a discharging port 6; and a valve member 8 arranged inside the resilient membrane 7 capable of prohibiting a flow of stored content in a space between the container spout 2 and the discharging port 6. The valve member 8 has a spherical seal surface 12 to which the resilient membrane 7 resiliently contacted.

COPYRIGHT: (C)2004,JPO