초록 ▼

A container is constructed from a pouch having a front sheet, a rear sheet and a bottom sheet. The bottom sheet of the pouch is folded along a midline thereof with flaps extending downward from the fold line. Each of the bottom edges of the flaps are welded to or integral with one bottom edge of eit

A container is constructed from a pouch having a front sheet, a rear sheet and a bottom sheet. The bottom sheet of the pouch is folded along a midline thereof with flaps extending downward from the fold line. Each of the bottom edges of the flaps are welded to or integral with one bottom edge of either the front or the rear sheet. Lateral edges of the front and rear sheets are welded to one another with the bottom two portions of the welded edges sandwiching both lateral edges of the bottom folded sheet. To construct the container, a central portion of the bottom sheet is unfolded such that the unfolded portion has an essentially rectangular shape, thus forming said base, with central parts of the bottom edges of the bottom sheet forming the front and rear edges of the base and with peripheral portions of the bottom sheet forming two overlapping triangular portions with the bottom edges thereof defining the two side edges of the base. The container's front and rear wall sections extend from the front and rear edges and side walls extend from the side edges, with the welded edges of the front and rear sheets being at about the midline of the side walls. The structure is fixed by welding the two overlapping triangular portions to one another or by welding a peripheral triangular portion of the two overlapping ones to a juxtaposed inner face of the side sheets.

대표청구항 ▼

[ What is claimed is:] [1.]1. A container having a base with a front edge, a rear edge and side edges, and walls extending upwardly therefrom; the base being generally rectangular and being made of a laminated film having an inner face and an outer face, both said inner and outer faces being heat we

[ What is claimed is:] [1.]1. A container having a base with a front edge, a rear edge and side edges, and walls extending upwardly therefrom; the base being generally rectangular and being made of a laminated film having an inner face and an outer face, both said inner and outer faces being heat weldable, and the walls being made of a laminated film having an inner face and an outer face, only said inner face being heat weldable; said walls and said base of the container being constructed from a front sheet having a bottom edge, a top edge and lateral edges, a rear sheet having a bottom edge, a top edge and lateral edges, and a bottom sheet, respectively; the bottom sheet being folded along a midline thereof thereby having a first flap and a second flap connected together at said bottom sheet midline, said flaps extending downwards from said midline, said flaps each having a bottom edge and lateral edges, and wherein the bottom edge of said first flap is joined to the bottom edge of the front sheet and the bottom edge of the second flap is joined to the bottom edge of the rear sheet; wherein the lateral edges of the front sheet and the rear sheet are welded to one another with bottom portions of the lateral edges of the front and rear sheets sandwiching corresponding lateral edges of the first and second flaps therebetween; wherein the bottom sheet is unfoldable into a substantially rectangular shape to form said base, with central parts of the bottom edges of the flaps of the bottom sheet forming the front and rear edges of the base and with first and second peripheral portions of the bottom sheet each forming a pair of corresponding overlapping triangular portions having lower edges thereof defining the side edges of the base, and side walls extending from said side edges of said base with the welded lateral edges of the front and rear sheets being at about a midline of the side walls; said container being fixed by welding each of the pairs of corresponding overlapping triangular portions to each other and to the side wall adjacent said triangular portions at least along a part of a bottom edge portion thereof.