US 12,252,299 B2
Container bag for liquid having a spout
Hidetomo Kohara, Sagamihara (JP); Tsuyoshi Kawabata, Sagamihara (JP); Susumu Sato, Sagamihara (JP); and Yuka Tozaki, Sagamihara (JP)
Assigned to DAIWA CAN COMPANY, Chiyoda-ku (JP)
Appl. No. 17/996,053
Filed by DAIWA CAN COMPANY, Chiyoda-ku (JP)
PCT Filed Mar. 30, 2021, PCT No. PCT/JP2021/013561
§ 371(c)(1), (2) Date Oct. 12, 2022,
PCT Pub. No. WO2021/210387, PCT Pub. Date Oct. 21, 2021.
Claims priority of application No. 2020-073072 (JP), filed on Apr. 15, 2020.
Prior Publication US 2023/0331439 A1, Oct. 19, 2023
Int. Cl. B65D 75/00 (2006.01); B65D 30/08 (2006.01); B65D 75/58 (2006.01); B65D 83/00 (2006.01)
CPC B65D 29/02 (2013.01) [B65D 75/5872 (2013.01); B65D 83/0022 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A container bag for liquid having a spout,
wherein a closed trunk section is formed by folding a sheet material in which at least two films are laminated together, and bonding peripheries of layers of the sheet material overlapped on each other,
the spout has a higher rigidity than a rigidity of the sheet material, and the spout is clamped by the layers of the sheet material in an upper periphery of the trunk section while communicating with an internal space of the trunk section,
a plurality of cells are formed between the films of the sheet material forming a side wall of the trunk section by bonding the films together along a bonding line, and fluid is injected into the cell to inflate the cell,
the spout includes a base portion that is inserted between upper peripheries of the layers of the sheet material and bonded to the sheet material at least partially,
the base portion includes a skirt portion that is formed below the portion bonded to the layers of the sheet material,
the cells are formed between the films of each of the layers of the sheet material,
at least the cell formed within a width of the spout in a width direction of the trunk section extends downwardly from the upper peripheries of the layers of the sheet material, and
the skirt portion is clamped by the cells formed between the films of each of the layers of the sheet material extending downwardly within the width of the spout in the width direction of the trunk section.