Carton Handle Structure with Offset Hinged Reinforcing Flaps
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Solution Overview
Problem
Existing carton designs for multi-packs lack a robust and efficient handle structure that can withstand the weight of the contents while minimizing material usage and waste, and ensuring strength and durability for transportation and display purposes.
Innovation Solution
A carton design featuring hingedly connected panels with a reinforced handle structure, including a severance line for a handle opening and offset hinged connections for added strength, along with reinforcing flaps and cushioning elements to form a tubular structure that provides a durable and comfortable carrying handle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a handle structure is added to the carton, then the carton can be carried and transported, but the material usage and weight increase
Solution Approach 1:
The handle structure is formed by segmenting the panel through a severance line that creates a handle opening, allowing the handle to be formed from the existing panel material rather than adding separate components. This segmentation enables the handle to be integrated into the carton structure with minimal additional material.
Solution Approach 2:
The handle structure utilizes the flexibility of the carton panel material to form the handle opening and reinforcing flaps. The panel is folded and shaped to create the handle, using the material's inherent flexibility rather than rigid additions, thereby minimizing weight increase while maintaining structural integrity.
2Strength
If a robust handle structure is created to withstand heavy loads, then the strength increases, but the material usage increases
Solution Approach 1:
Reinforcing flaps are applied locally at specific positions around the handle opening where strength is most needed. The first and second reinforcing flaps are positioned to provide targeted reinforcement without requiring additional material throughout the entire carton structure. This localized reinforcement achieves high handle strength with minimal material addition.
Solution Approach 2:
The handle structure creates a composite construction by layering the panel material over itself through folded reinforcing flaps and multiple panel layers. This composite arrangement of the existing carton material provides enhanced strength and load-bearing capacity without introducing external materials, thereby minimizing material usage while maximizing handle robustness.
3Reliability
If reinforcing flaps are added to strengthen the handle, then the durability increases, but the device complexity increases
Solution Approach 1:
The reinforcing flaps are merged with the existing panel structure through hinged connections to the first and second panels. Rather than being separate components requiring additional assembly, the reinforcing flaps are integrated into the carton blank as a unified structure that folds into place during carton formation, simplifying the overall manufacturing process while enhancing durability.
Solution Approach 2:
The reinforcing flaps serve multiple functions: they strengthen the handle opening, provide structural support to the surrounding panel areas, and maintain the integrity of the carton during folding and assembly. This multi-functionality reduces the need for additional specialized components, thereby reducing overall structural complexity while improving reliability.
Data Source
AI summary
A carton for packaging one or more articles. The carton includes a plurality of panels for forming a tubular structure. The plurality of panels forming a tubular structure includes a first side wall panel, a first end wall panel, a second side wall panel; and second end wall panel. The carton includes a first handle structure defined in a first one of the plurality of panels. The first handle structure includes a severance line defining at least in part a handle opening. The carton includes a first end closure panel forming, at least in part, top wall which at least partially closes an upper end of the tubular structure and which is hingedly connected to the first one of the plurality of panels by a first hinged connection. The carton includes a first reinforcing flap hingedly connected to the first end closure panel by a second hinged connection. The second hinged connection is offset from the first hinged connection.