Carton With Chamfered Corners For Cylindrical Articles
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Solution Overview
Problem
Existing cartons for cylindrical articles, such as bottles, often leave empty space and allow articles to move or tilt, leading to damage, and existing solutions like gabled or chamfered corner designs are complex to manufacture and require specialized equipment.
Innovation Solution
A carton design with side end flaps that form chamfered corners between side and end walls, allowing easy folding and erection into a tubular structure with open ends, enabling efficient loading and secure packaging of cylindrical articles without the need for specialized machinery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a rectangular carton is used to enclose cylindrical articles, then the carton structure is simple and easy to manufacture, but empty space remains and articles can move or tilt causing damage
Solution Approach 1:
The patent applies local quality by creating chamfered corners at specific locations where cylindrical articles contact the carton walls. These localized geometric modifications provide targeted protection and space utilization without requiring complete redesign of the entire carton structure, thus maintaining manufacturing simplicity while improving article protection.
Solution Approach 2:
The patent incorporates curved surfaces through chamfered corners that conform to the cylindrical shape of articles. These curved geometric features better match the article geometry, reducing empty space and preventing tilting while maintaining a relatively simple overall carton structure that can be manufactured using conventional methods.
2Productivity
If gabled cartons are designed to reduce empty space, then packaging efficiency improves, but the structure becomes complex requiring specialized packaging machinery
Solution Approach 1:
Instead of implementing complex gabled structures throughout the entire carton, the patent applies localized chamfered corners only at the critical contact points where articles touch the walls. This localized approach achieves space reduction and article stabilization without requiring complex overall carton geometry or specialized packaging machinery.
Solution Approach 2:
The patent segments the carton structure into simple rectangular walls with localized chamfered corner features. This segmentation allows the majority of the carton to remain simple and compatible with standard equipment, while only the critical corner portions provide the additional packaging efficiency benefits.
3Reliability
If chamfered corner designs are implemented, then empty space is reduced and articles are protected, but the carton structure becomes more complex
Solution Approach 1:
The patent implements chamfered corners only at the specific locations where cylindrical articles contact the carton walls. These localized geometric modifications provide targeted protection and space utilization without requiring complete redesign of the entire carton structure, thus maintaining manufacturing simplicity while improving article protection.
Solution Approach 2:
The patent incorporates curved surfaces through chamfered corners that conform to the cylindrical shape of articles. These curved geometric features better match the article geometry, reducing empty space and preventing tilting while maintaining a relatively simple overall carton structure that can be manufactured using conventional methods.
Data Source
AI summary
A carton is provided with side walls and chamfered corners shaped to securely or tightly enclose a group of cylindrical articles, such as beverage bottles. The curvature of the edges of each side wall is selected to cause the end wall or end closure structure to conform to the cylindrical and tapered shape of articles in the endmost row. More specifically, the end edges of each side wall are substantially concave and their curvature is determined such that the minimum width of each side wall is less than or equal to the width of the top wall. To encourage side end flaps, which partially form the end closure structure, to crease so as to define the chamfered corners, a fold line is formed in the side end flaps.