Carton with Severance Lines for Dispenser Access

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Solution Overview

Problem

Existing carton designs for packaging multiple products are inefficient in terms of material usage, strength, and accessibility, as they often require more material than necessary and do not facilitate easy access to contents while maintaining structural integrity.

Innovation Solution

A carton design featuring a tubular structure with hinged panels and a detachable dispenser portion created by severance lines, allowing for efficient folding, reduced material usage, and easy access to contents without compromising structural strength.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If traditional carton designs are used to package multiple products, then the carton can provide basic packaging and transport functionality, but it requires excessive material usage and generates waste

Engineering Contradiction:
Improvematerial usageVSAvoidcarton structural strength
Core Design Contradiction:
Loss of substanceVSStrength

Solution Approach 1:

The carton is divided into multiple functional panels (front panel, back panel, two side panels, top panel, bottom panel) that are hinged together, allowing the structure to achieve strength through geometric configuration rather than material quantity. The severance lines segment the top panel to create a dispenser mechanism that can be separated from the main body.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a traditional box-like structure to a tubular structure formed by hinged panels, utilizing the third dimension more effectively. The panels are arranged to form a tube that can stand upright and be stacked, optimizing space and material usage while maintaining structural integrity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If traditional carton designs are used, then the carton can hold multiple products, but it does not facilitate easy access to contents

Engineering Contradiction:
Improveaccess to contentsVSAvoidcarton structural integrity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The top panel is segmented by severance lines to create a detachable dispenser portion. This allows consumers to easily access and remove individual products from the tubular structure without damaging the overall carton integrity. The hinged panels maintain the structural framework while the segmented top provides access.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dispenser portion is designed to be dynamically detachable from the main carton body through the severance lines. This dynamic feature allows the carton to transition from a sealed protective structure to an open access structure, facilitating easy product removal while preserving the strength of the remaining tubular framework.

Inventive Principle:
Principle #15Dynamics

3Strength

If more material is used to enhance carton strength, then the carton can better hold and transport products, but material cost and waste increase

Engineering Contradiction:
Improvepackaging strengthVSAvoidmaterial waste
Core Design Contradiction:
StrengthVSLoss of substance

Solution Approach 1:

By segmenting the carton into hinged panels rather than using a monolithic structure, the invention achieves strength through the geometric arrangement and interlocking of panels. This segmentation allows each panel to be optimized for its specific function while contributing to overall structural integrity, reducing total material requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hinged panel structure acts as a flexible framework that can be formed from thin material while maintaining strength through its three-dimensional configuration. The panels fold and hinge together to create a rigid tubular structure, demonstrating how thin materials can provide adequate strength when properly structured.

Inventive Principle:
Principle #30Flexible shells and thin films

4Ease of operation

If a dispenser is added to facilitate access to contents, then consumer convenience is improved, but device complexity increases

Engineering Contradiction:
Improvecontent access convenienceVSAvoidcarton structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The dispenser function is merged with the top panel of the carton rather than being added as a separate component. The severance lines are integrated into the top panel design, allowing the dispenser to be formed from the same material and manufacturing process as the main carton body, thus reducing overall complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The top panel serves multiple functions: it closes the tubular structure, provides a surface for handling, and contains the dispenser mechanism. This multi-functionality reduces the need for additional components, simplifying the overall device while maintaining ease of content access.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10279951B2Carton and carton blank
Publication Date: 2019.05.07 WESTROCK PACKAGING SYSTEMS LLC
  • US10279951B2 patent drawing
  • US10279951B2 patent drawing
  • US10279951B2 patent drawing

AI summary

A carton (90) for packaging one or more articles (A) includes a plurality of panels (12, 14, 16, 18) for forming a tubular structure. The plurality of panels include a top panel (16) and a pair of first and second opposed side panels (14, 18) hingedly connected to first and second opposite sides of the top panel respectively. The first and second side panels include first and second corner edges (C2, C1) respectively which are free of hinged connection to any other part of the carton. The first and second corner edges extend from the first and second sides of the top panel respectively. The carton includes a first severance line (70) extending from the first corner and a second severance line (78) extending from the second corner edge.