Dispensing Carton Deformation Pattern for Controlled Opening
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Solution Overview
Problem
Conventional fully enclosed dispensing cartons with dispensing openings at the top are difficult to open due to the stiffness of the paperboard material, making it hard to grip and tear along the designated tear lines, and often tear at unintended locations.
Innovation Solution
A carton design featuring a deformation pattern that facilitates gripping and tearing, including v-shaped edge deformation lines, curved access deformation lines, and oblique top deformation lines, which allows for easy opening of the dispenser section by deforming the material and guiding the tear along the intended lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional paperboard material is used for the dispenser section, then the carton maintains structural strength, but the dispenser section becomes difficult to grip and tear along the tear lines
Solution Approach 1:
The deformation pattern is pre-formed in the paperboard during manufacturing, creating predetermined flexible zones before the carton is used. These pre-formed deformations include creases, cuts, or recesses that will guide the tearing action when the user applies force, solving the problem of difficult tearing while maintaining overall structural integrity.
Solution Approach 2:
The deformation pattern creates localized areas of reduced stiffness within the dispenser section, while the rest of the carton maintains full structural strength. This is achieved by applying the deformation pattern only to specific regions (such as the top panel or sides of the dispenser section) rather than the entire carton structure.
2Stability of the object's composition
If the paperboard material is stiff to maintain carton structure, then the carton holds its shape, but tearing occurs at locations other than the intended tear lines
Solution Approach 1:
The deformation pattern is pre-formed in the paperboard during manufacturing, creating predetermined flexible zones before the carton is used. These pre-formed deformations include creases, cuts, or recesses that will guide the tearing action when the user applies force, solving the problem of difficult tearing while maintaining overall structural integrity.
Solution Approach 2:
The deformation pattern acts as an intermediary element between the user's gripping force and the tear lines. It provides a transition zone that concentrates and directs the applied force toward the intended tear lines, preventing premature or misplaced tearing while the carton maintains its structural stability.
3Ease of manufacture
If the dispenser section is made from unitary paperboard with tear lines, then the carton is simple to manufacture, but the dispensing opening is difficult to open
Solution Approach 1:
The deformation pattern is pre-formed in the paperboard during manufacturing, creating predetermined flexible zones before the carton is used. These pre-formed deformations include creases, cuts, or recesses that will guide the tearing action when the user applies force, solving the problem of difficult tearing while maintaining overall structural integrity.
Solution Approach 2:
The deformation pattern modifies local physical parameters of the paperboard, such as reducing stiffness or creating flexible zones through creases, cuts, or recesses. This allows the dispenser section to be more easily manipulated and torn along the intended lines while maintaining the overall structural integrity of the carton.
Data Source
AI summary
A dispensing carton includes a dispenser section having a deformation pattern provided therein. The deformation pattern facilitates removal of the dispenser section during opening of the carton.