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US 2012/0237143 A1Published application
Self-standing bag and manufacturing method thereof
AssigneeOshio Industry Co., Ltd.
InventorsMasaaki Sato, Masakazu Sato
Life of this patent
Estimating the term…
Abstract
The self-standing bag comprises a package for accommodating a content, a port provided in the center of the top portion of the package, and reinforcing members formed of a thermoplastic resin which cover the outer faces of both side edges of the package. The lower end portion of the reinforcing member is located above the bottom edge of the package. The lower end portion of the reinforcing member is projected inward of a lower cutout.
Claims12
A self-standing bag comprising:
- a package for accommodating a content;
- a port provided on a top of the package;
- and
- a reinforcing member for covering an outer face on a side edge of the package,
- wherein the reinforcing member is formed of a thermoplastic resin,
- wherein the lower end portion of the side edge of the package has a lower cutout,
- wherein the upper end portion of the side edge of the package has an upper cutout including an upper cutout face,
- wherein the bottom end of the reinforcing member is located above the bottom edge of the package, and
- wherein the top end of the reinforcing member is located above the upper cutout face.
6 more elements
A manufacturing method of self-standing bag, the self-standing bag comprising:
- a package for accommodating a content;
- a port provided on a top of the package;
- and
- a reinforcing member for covering an outer face on a side edge of the package,
- wherein the reinforcing member is formed of a thermoplastic resin,
- wherein the lower end portion of the side edge of the package has a lower cutout,
- wherein the upper end portion of the side edge of the package has an upper cutout including an upper cutout face,
- wherein the bottom end of the reinforcing member is located above the bottom edge of the package, and
- wherein the top end of the reinforcing member is located above the upper cutout face,
- the manufacturing method comprising:
- a step of forming the package;
- a step of mounting the package in a first mold by disposing the side edges of the package in a first concave portion of the first mold;
- a step of, after the package is mounted in the first mold, bringing the first mold and a second mold into contact with each other in such a manner that the bottom end of cavity defined by a first concave portion of the first mold and a second concave portion of the second mold is located above the bottom edge of the package and the top end of the cavity is located above the upper cutout face;
- a step of forming the reinforcing member so as to cover the side edge of the package by injecting thermoplastic resin into the cavity;
- and
- a step of attaching the port on the top of the package.
13 more elements
Dependencies are inferred from the claim text.