| 摘要 |
PROBLEM TO BE SOLVED: To provide a deaeration valve member capable of securing rigidity, and a storage bag using the deaeration valve member.SOLUTION: A deaeration valve member 30 comprises: a base body 31 arranged inside a peripheral wall part 13; a cover body 47 arranged outside the peripheral wall part 13; and a valve body 44 disposed so as to open/close a vent hole 33a on a base body 31 side of a ventilation passage 30a comprising the base body 31 and the cover body 47. On a surface of the base body 31 on the opposite side to the cover body 47, provided is an annular rib 42 comprising main ribs 39 and auxiliary ribs 40 alternately on the opposite side to the cover body 47, and projecting in an annular manner so as to surround the vent hole 33a on the base body 31 side.SELECTED DRAWING: Figure 5 |
