Carton Base Design with Diagonal Weakening Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing round or curved cartons face challenges with complex and costly base structures, susceptibility to being knocked back into a flat state, and difficulties in positioning graphical information due to independent panels, leading to logistical and aesthetic issues.
Innovation Solution
A carton design featuring hingedly connected panels with strengthening tabs and diagonal weakening lines on lower flaps, allowing for a strong, flat base that resists being knocked down and enables smooth curvature maintenance, along with a method of construction that simplifies manufacturing and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a complicated base structure is used to maintain carton shape, then the carton maintains its structural integrity, but the base becomes difficult and costly to glue into its desired flat or knock down state
Solution Approach 1:
The base is divided into multiple independent panels that can be separately manipulated and assembled. This segmentation allows the base to be flattened for shipping and then easily reassembled at the point of use without requiring complex gluing operations, resolving the contradiction between structural integrity and manufacturing ease.
Solution Approach 2:
The base structure incorporates movable panels that can transition between flat and three-dimensional states. This dynamic design enables the base to be shipped in a compact flat state and then transformed into its functional shape at the destination, eliminating the need for costly and difficult assembly operations.
2Ease of operation
If pressure is applied from the base, then the base section can be pushed back up inside the carton, but this returns the carton partially or substantially to its knock down state, compromising structural stability
Solution Approach 1:
The base structure incorporates pre-positioned panels and strengthening elements that resist collapse before pressure is applied. These preliminary structural features prevent the base from being pushed back inside the carton, maintaining stability even when handling forces are applied during normal operation.
3Adaptability or versatility
If the base is made up of several independent panels, then the base structure becomes more flexible, but it becomes difficult to position graphical information without splitting images across panels
Solution Approach 1:
The base panels are designed to be positioned adjacent to one another in a continuous arrangement, creating an uninterrupted surface for graphical information. This merging of panels allows full images and text to be printed across the base without being split, while the panels remain independently flexible for assembly purposes.
4Ease of operation
If the weakening lines run perpendicular to the fold line, then the lower flap can be opened, but this creates unsightly cracking or creasing on the outside of the made up carton
Solution Approach 1:
The weakening lines are positioned at an angle rather than perpendicular to the fold line, creating an asymmetric pattern that allows the lower flap to open while directing the crease away from visible exterior surfaces. This angular positioning enables functional access while maintaining aesthetic appearance.
Data Source
AI summary
There is provided a carton comprising a side wall (4) comprising a first panel (6) connected to a second panel (8), a first lower flap (16) hingedly connected to the first panel, the first and second panels having free ends, a second lower flap (18) hingedly connected to the second panel, a hinged locking base panel (30) hingedly connected to the first lower panel and an inner base panel (36) hingedly connected to the second lower panel, a plurality of strengthening tabs (54,56,58,60) attached to the hinged base locking panel or the inner base panel, the first lower flap being folded over and affixed to the first panel, the second lower flap being folded over and affixed to the second panel, the hinged base locking panel being folded along a hinge line (34) thereof and affixed to the inner base panel, in which substantially diagonal weakening lines (80,82,84,86) are positioned on the lower flaps.