Title:
GAS RELEASE VALVE
Document Type and Number:
Japanese Patent JP2018155287
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a gas release valve which improves a gas release property.SOLUTION: A gas release valve 1 comprises: a base film 10 including a ventilation hole Hb; and a cover film 20 that is laminated on the base film 10. The gas release valve is stuck in such a manner that a gas release hole of a container is closed, and discharges a gas inside of the container. The gas release valve 1 comprises: a pair of adhesive portions Bo where the base film 10 and the cover film 20 are adhered with the ventilation hole Hb interposed therebetween; and a non-adhesive portion Nb between the pair of adhesive portions Bo. When an internal pressure in the container is equal to or higher than a predetermined pressure, the base film 10 and the cover film 20 in the non-adhesive portion Nb are separated, a gas discharge passage is formed, and the gas is discharged from the container via the ventilation hole Hb. An outer edge of the cover film 20 in the non-contact portion Nb includes an outer edge linear part Lo in a linear shape, an inner edge of the base film 10 in the non-contact portion Nb at a side orthogonal with the gas discharge passage includes an inner edge linear part Li in a linear shape, and the outer edge linear part Lo and the inner edge linear part Li are in parallel.SELECTED DRAWING: Figure 2
Inventors:
SATO NORIO
SATO HIROYUKI
KANEMASA KENICHI
SATO HIROYUKI
KANEMASA KENICHI
Application Number:
JP2017051038A
Publication Date:
October 04, 2018
Filing Date:
March 16, 2017
Export Citation:
Assignee:
MARUTEN SANGYO CO LTD
International Classes:
F16K24/04; B65D81/26; F16K17/164
Domestic Patent References:
| JP3087194U | 2002-07-19 | |||
| JP2004250093A | 2004-09-09 |
Foreign References:
| US20070090109A1 | 2007-04-26 |
Attorney, Agent or Firm:
Kimura Mitsuru
Wataru Suetsugu
Takanori Mamoru
Masateru Mori
Wataru Suetsugu
Takanori Mamoru
Masateru Mori