CAP WITH PRESSURE SENSING VALVE

摘要

PROBLEM TO BE SOLVED: To provide a cap with a pressure sensing valve which is free from intrusion of a liquid in a pretreatment and flying or falling down of a cap to remarkably prolong the life and facilitate the attaching and detaching work to improve work efficiency. SOLUTION: An attachment flange 2 penetrated by a slid 4 is provided to be integrally provided to a tubular primary cap main body 1 which is the inserting part 14 of a tubular work 9 and is provided with a ring-like projecting part 3 in the inside of a hollow. An inscribed engaging part 6 is provided to be integrally with the primary cap main body insertion side 10 of a lid-like secondary cap main body 5 and a ventilation hole 7 and a lip board 8 are provided integrally with the back side 11 of the lid like secondary cap main body 5. A lip-like pressure sensing valve 13 is provided to the inside 12 of the lip board 8. The cap with pressure sensing valve is constituted so that the tubular primary cap main body 1 and the lid-like secondary cap main body 5 which are integrally formed respectively as the whole are covered to be in close contact with each other and assembled. COPYRIGHT: (C)2007,JPO&INPIT