Bliss Box Corner Piece Leak Resistance Design
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Solution Overview
Problem
Conventional bliss-type containers are prone to fluid leakage, which can lead to contamination issues during cross-stacking, especially when used for perishable products like poultry, as they lack effective leak-resistant features.
Innovation Solution
A leak-resistant bliss-type container design featuring a first blank with hingedly connected side walls, vertical side flanges, and bottom flanges, along with corner pieces formed from a web of material that overlaps to create a secure, leak-resistant corner, utilizing corrugated cardboard material with internal flutes to enhance structural integrity and prevent fluid passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bliss-type container design is used, then manufacturing simplicity is maintained, but fluid leakage occurs at seams and corners
Solution Approach 1:
The container structure is divided into distinct functional segments: corner pieces with integrated flaps, side walls with seams, and end walls. Each segment is designed to address specific leakage points, with corner pieces forming separate leak-resistant assemblies that can be manufactured and assembled independently.
Solution Approach 2:
The corner pieces extend in multiple dimensions beyond simple corner reinforcement. They include flaps that extend along seams and bottom portions, creating a three-dimensional leak-resistant barrier that addresses leakage paths in multiple directions simultaneously.
2Reliability
If thicker panel material is used to prevent leakage, then leak resistance improves, but manufacturing complexity and material usage increase
Solution Approach 1:
Instead of using uniformly thick material throughout the container, the invention segments the leak protection function into separate corner pieces with integrated flaps. This allows thin-walled construction in most areas while concentrating material resources only where leakage occurs.
Solution Approach 2:
The corner pieces provide localized reinforcement at critical leakage points (corners and seams) without requiring increased material thickness throughout the entire container. The flaps extend only to the extent needed to seal specific leakage paths.
3Reliability
If corner pieces with extended flaps are added, then leak resistance at corners and seams improves, but device complexity increases
Solution Approach 1:
The corner pieces merge multiple functions into a single component: corner reinforcement, seam sealing via extended flaps, and bottom portion coverage. This integration reduces the total number of separate parts needed compared to alternative designs that would address each function separately.
Solution Approach 2:
The corner pieces serve multiple purposes simultaneously: they reinforce container corners, seal seams through integrated flaps, and protect bottom portions. This multi-functionality reduces overall structural complexity by eliminating the need for separate components for each function.
Data Source
AI summary
A leak resistant bliss-type container comprising a first blank defining a bottom wall, opposed first side walls hingedly connected to longitudinal edges of the bottom wall and extending upwardly from the bottom wall, a vertical side flange hingedly connected to each of a pair of opposing lateral edges of the first side walls, and opposing bottom flanges hingedly connected to lateral edges of the bottom wall and extending upwardly in overlapping relation to the vertical side flanges. Second and third identical end blanks are provided, each end blank defining at least an end wall secured in overlapping relation to the vertical side flanges. A corner piece is defined by a web of material, each corner piece extending between a longitudinal edge of one of the vertical side flanges and a longitudinal edge of the bottom flange to define a leak resistant corner.