Container bag for liquid having a spout

Patent metadata

Field	Value
Publication number	US-12252299-B2
Application number	US-202117996053-A
Country	US
Kind code	B2
Filing date	Mar 30, 2021
Priority date	Apr 15, 2020
Publication date	Mar 18, 2025
Grant date	Mar 18, 2025

Abstract

To prevent a reduction in a bending strength and a buckling strength of a container bag for fluid in which a spout is mounted on an upper end of a trunk section formed of a sheet material. Cells 9 are formed between two films of the sheet material 2 by bonding the films together along bonding lines 8 , and inflated with fluid. The cells 9 positioned within a width of the spout in a width direction of the trunk section 5 extends downwardly from a site at which the spout 6 is clamped by the layers of the sheet material 2 . A lower end of the spout 6 is situated lower than upper ends of the cells 9.

First claim

The invention claimed is:

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.

2. The container bag for liquid having the spout as claimed in claim 1 , wherein the spout further includes a pump dispenser having a nozzle head that is pushed down to discharge a content.

3. The container bag for liquid having the spout as claimed in claim 1 , wherein the cells clamping the skirt portion extend linearly toward a bottom of the trunk section.

4. The container bag for liquid having the spout as claimed in claim 1 , wherein the cells clamping the skirt portion extend linearly toward a bottom of the trunk section.

Assignees

• Daiwa Can Co Ltd

Inventors

• Kohara Hidetomo
• Kawabata Tsuyoshi
• Sato Susumu
• Tozaki Yuka

Classifications

• B65D83/763

  the piston being actuated by a reciprocating axial motion of a shaft which engages the piston, e.g. using a ratchet mechanism · CPC title

• B65D75/5872

  Non-integral spouts · CPC title

• B65D2575/583

  the non-integral spout having an elongate cross-sectional shape, e.g. canoe or boat shaped · CPC title

• B65D75/525

  External rigid or semi-rigid supports · CPC title

• B65D75/5883

  connected to the package at the sealed junction of two package walls · CPC title