Anti-bulging bag-in-box
First Claim
Patent Images
1. A packaging container with anti-bulging function comprising:
- a bag made of a flexible material;
a box;
said bag inside a said box;
said box being made of a one piece blank;
said one piece blank being made of a corrugated-fiberboard or a paperboard sheet;
said one piece blank further has a rectangular bottom plate, two pairs of faced side panels with a plurality of top edges, a quadrangular cylindrical casing with a lid extending to each of said plurality of top edges of said two pairs of side panels, and an inner cylinder with a substantially octangular cross section, wherein said two pairs of faced side panels are erected at four sides of said bottom plate;
said octangular cylinder is formed with four inner-cylinder forming pieces extending to both sides of one pair of said two pairs of side panels;
said inner-cylinder forming pieces are formed into said octangular cylinder by folding to the inside of the casing through ruled limes drawn between said inner-cylinder forming piece; and
said bag having dimensions larger than the inside diameter of said octangular cylinder is arranged inside said inner cylinder.
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Abstract
To provide a packaging container with anti-bulging function comprising a bag inside a box in which an inner bag is set in an octangular inner cylinder integrated with a quadrangular outer casing. The bag inside the box provides an anti-bulging function to prevent the outer casing from bulging, by developing a counter bulge in the inner bag acting on an oblique surface of the octangular inner cylinder to pull a side wall of the quadrangular outer casing inward.
78 Citations
18 Claims
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1. A packaging container with anti-bulging function comprising:
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a bag made of a flexible material; a box; said bag inside a said box; said box being made of a one piece blank; said one piece blank being made of a corrugated-fiberboard or a paperboard sheet; said one piece blank further has a rectangular bottom plate, two pairs of faced side panels with a plurality of top edges, a quadrangular cylindrical casing with a lid extending to each of said plurality of top edges of said two pairs of side panels, and an inner cylinder with a substantially octangular cross section, wherein said two pairs of faced side panels are erected at four sides of said bottom plate; said octangular cylinder is formed with four inner-cylinder forming pieces extending to both sides of one pair of said two pairs of side panels; said inner-cylinder forming pieces are formed into said octangular cylinder by folding to the inside of the casing through ruled limes drawn between said inner-cylinder forming piece; and said bag having dimensions larger than the inside diameter of said octangular cylinder is arranged inside said inner cylinder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A packaging container with anti-bulging function comprising:
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a box; a thin-walled container; said thin-walled container inside said box; said box being made of a one piece blank; said one piece blank being made of a corrugated-fiberboard or a paperboard sheet; said one piece blank further has a rectangular bottom plate, two pairs of faced side panels with a plurality of top edges, a quadrangular cylindrical casing with a lid extending to each of said plurality of top edges of said two pairs of side panels, and an inner cylinder with a substantially octangular cross section, wherein said two pairs of faced side panels are erected at four sides of said bottom plate; said octangular cylinder is formed with four inner-cylinder forming pieces extending to both sides of one pair of said two pairs of side panels; said inner-cylinder forming pieces are formed into said octangular cylinder by folding to the inside of the casing through ruled limes drawn between said inner-cylinder forming pieces; and said thin-walled container having dimensions larger than the inside diameter of said octangular cylinder is arranged inside said inner cylinder. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification