CAP OF CONTAINER

摘要

A cap of a container capable of securely locking a plug member to a mouth part by a locking member when the cap is installed and capable of being easily and rapidly removed from the mouth part together with the plug member merely by pulling out a holder member upward in unplugging, comprising the octopus -like locking member (13) covered on the container mouth part (2) so as to hold the rubber plug (3) and the holder member (14) fitted to the outer peripheral sides of the plurality of locking pieces (12) of the locking member (13). In each locking piece (12), an upper side part (12U) is connected to a lower side part (12D) through a thin-walled bending part (12a) at the vertical intermediate part of the locking piece (12), the upper side part (12U) is locked to the rubber plug (3) from the lower side with the holder member (14) fitted to the outer peripheral side thereof, and the lower side part (12D) is locked to the container mouth part (2) from the lower side with the holder member (14) fitted to the outer peripheral side thereof. Locking projected parts (12e) and (14a) preventing the lower end of the holder member (14) from coming out of the upper side part (12U) are formed on the holder member (14) and the locking member (13).