Flexible Package Gusset Aperture for Easy Opening

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Solution Overview

Problem

Current compressed packages for disposable absorbent articles are difficult to open and access due to a lack of an easily identifiable opening feature, making it hard for consumers to remove products efficiently.

Innovation Solution

A flexible package design with a gusset forming a pocket and an aperture sized for a finger, along with a line of weakness that allows easy opening by tearing, facilitating access to the contents.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the package is compressed to reduce volume and distribution costs, then the package size is reduced and appearance is improved, but the opening feature becomes less apparent and articles are harder to remove

Engineering Contradiction:
Improvepackage volumeVSAvoidease of opening
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The side wall is segmented into multiple functional zones: a gusset portion that forms a pocket, an aperture within the pocket for finger insertion, and a line of weakness for tearing. This segmentation allows the package to maintain compression while providing distinct, easily locatable opening features that guide the consumer through the opening process.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gusset is pre-formed during manufacturing to create a pocket structure with an aperture, and a line of weakness is pre-established in the side wall. These preliminary actions prepare the package for easy opening without requiring the consumer to locate or create opening features during use.

Inventive Principle:
Principle #10Preliminary action

2Loss of energy

If the package is compressed to reduce distribution expenses, then the package size is reduced, but the articles are difficult to access one at a time

Engineering Contradiction:
Improvedistribution expensesVSAvoidease of article access
Core Design Contradiction:
Loss of energyVSEase of operation

Solution Approach 1:

The side wall structure is divided into functional segments including a gusset forming a pocket with an aperture, allowing consumers to insert fingers and access articles one at a time. The line of weakness segments the sealing structure, enabling controlled opening without compromising the compressed state of remaining articles.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gusset and aperture are located at specific positions on the side wall to provide localized access points. This local quality change allows easy article removal at the aperture while maintaining the compressed, space-efficient structure of the overall package.

Inventive Principle:
Principle #3Local quality

3Ease of operation

If the opening feature is made more apparent, then the consumer can easily locate and open the package, but the package structure becomes more complex

Engineering Contradiction:
Improveease of locating openingVSAvoidpackage structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The gusset, pocket, aperture, and line of weakness are merged into a single integrated structure formed from the side wall material. This combination provides multiple opening aids (pocket for grip, aperture for finger insertion, line of weakness for tearing) without requiring separate components, thus maintaining manufacturing simplicity while enhancing ease of opening.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS7866473B2Flexible package having an easy opening feature
Publication Date: 2011.01.11 KIMBERLY CLARK WORLDWIDE INC
  • US7866473B2 patent drawing
  • US7866473B2 patent drawing
  • US7866473B2 patent drawing

AI summary

A flexible package is disclosed having an easy opening feature. The opening feature includes a gusset formed in at least one side wall. The gusset is aligned inward of the side wall and forms a pocket having an internal panel and an external panel. An aperture is formed through the external panel and is sized to receive at least one human finger. The package also has a line of weakness formed in the side wall containing the external panel with the aperture formed therethrough. The line of weakness has two portions, each located on an opposite side of the aperture and each extending from the first end of the gusset to a point spaced apart therefrom. The line of weakness also has a third portion which extends across the side wall and connects with the first two portions of the line of weakness. The combination of the gusset, the aperture and the line of weakness create a structure which allows the package to be easily opened.