Carton Severance Lines Dispenser Mechanism

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Solution Overview

Problem

Current packaging solutions for multi-packs face challenges in minimizing material usage, reducing waste, ensuring strength, and facilitating easy access to contents while maintaining structural integrity for transporting large weights.

Innovation Solution

A carton design featuring a tubular structure with hinged panels and strategically placed severance lines to create a dispenser mechanism, allowing for efficient access to contents without compromising structural integrity or increasing material usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a dispenser mechanism is added to facilitate access to contents, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveaccess to contentsVSAvoiddispenser structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The dispenser mechanism is segmented into multiple functional components: a detachable portion defined by first and second severance lines in the top panel, and a third portion defined by third and fourth severance lines in the end wall. This segmentation allows the dispenser to be constructed from existing carton panels through strategic cutting and folding, rather than adding a completely separate complex mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dispenser incorporates a foldable portion that can transition from a closed position to an open position, creating a dynamic access mechanism. The foldable portion is hingedly connected to allow it to be folded outwardly to define an opening, enabling easy removal of articles while maintaining carton integrity when closed.

Inventive Principle:
Principle #15Dynamics

2Loss of substance

If material usage is minimized to reduce waste and cost, then loss of substance is improved, but strength may deteriorate

Engineering Contradiction:
Improvematerial wasteVSAvoidcarton strength
Core Design Contradiction:
Loss of substanceVSStrength

Solution Approach 1:

The severance lines are pre-defined in the carton blank during manufacturing, allowing the dispenser portions to be precisely positioned and sized before the carton is assembled and filled. This preliminary planning ensures that material is removed only where necessary for dispenser functionality, minimizing waste while maintaining structural integrity in critical load-bearing areas.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The dispenser design applies local modifications only to specific portions of the carton panels where access is needed. The severance lines are strategically placed to remove minimal material for the detachable and third portions, while the majority of the carton structure retains its full strength and load-bearing capacity.

Inventive Principle:
Principle #3Local quality

3Ease of operation

If severance lines are placed to create dispenser openings, then ease of operation is improved, but structural integrity may worsen

Engineering Contradiction:
Improvecontent removalVSAvoidstructural integrity
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The severance lines are arranged asymmetrically with respect to the carton structure, with the first and second severance lines in the top panel positioned at different locations and orientations. This asymmetric placement allows the detachable portion to be optimized for dispenser functionality while maintaining structural balance and integrity in the overall carton construction.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The dispenser mechanism utilizes the third dimension by creating a foldable portion that can be folded outwardly from the carton surface. This dimensional approach allows access to contents without creating large openings in the carton walls, thereby preserving structural integrity while enabling easy content removal through the created opening.

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

Data Source

PatentUS10173820B2Carton and carton blank
Publication Date: 2019.01.08 WESTROCK PACKAGING SYSTEMS LLC
  • US10173820B2 patent drawing
  • US10173820B2 patent drawing
  • US10173820B2 patent drawing

AI summary

A carton includes panels for forming a tubular structure. The panels include a top panel (16), a base panel (12) and a pair of first and second opposed side panels (14, 18) hingedly interconnecting the top and base panels. The carton includes at least one end closure panel (24b, 28b) forming an end wall which at least partially closes a first end of the tubular structure. The carton includes a dispenser for facilitating access to the carton contents. The dispenser includes a first severance line (76) and a second severance line (84) each defined in one (16) of the panels forming the tubular structure. A third severance line (60) and a fourth severance line (70) are each defined in the end wall. The first and second severance line are divergently arranged with respect to each other. The third and fourth severance line are divergently arranged with respect to each other.