Perforated Opening Flap Food Packaging Carton Design

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Solution Overview

Problem

Conventional packaging cartons for food products are opaque, making it difficult for consumers to assess the remaining products and require frequent opening and closing, causing inconvenience and inefficient access.

Innovation Solution

A packaging carton design featuring a perforated opening flap on the back face that can be permanently removed to create an access opening, allowing visual access and easy opening options, while maintaining structural integrity and upright storage capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the carton is made of opaque material to protect food products, then product protection is improved, but visual access to contents deteriorates

Engineering Contradiction:

Improveproduct protectionVSAvoidvisual access to contents

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The back face of the carton is segmented into two parts: a removable opening flap and a remaining body. The opening flap can be separated along perforation lines to provide visual access to contents while the remaining carton maintains its protective function. This segmentation allows the carton to transition from fully opaque to partially transparent upon opening.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the carton requires opening and closing to access food products, then product protection is improved, but ease of operation deteriorates

Engineering Contradiction:

Improveproduct protectionVSAvoidaccess to contents

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The opening flap is pre-formed with perforation lines that guide the opening action. The flap can be easily torn along these pre-defined lines to provide immediate access to contents without requiring complex opening mechanisms or repeated closing operations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The opening flap is extracted as a separate, removable component from the main carton body. Once the flap is removed, it can be discarded or set aside, eliminating the need to close the carton and providing continuous access to contents.

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of operation

If the opening flap is permanently removed to provide access, then ease of operation is improved, but structural integrity deteriorates

Engineering Contradiction:

Improveaccess to contentsVSAvoidstructural integrity

Core Design Contradiction:

Ease of operationVSStrength

Solution Approach 1:

The back face is segmented into a removable flap and a remaining body that maintains structural integrity. The perforation lines are designed to concentrate stress along specific paths, allowing the flap to be removed while the remaining carton structure retains sufficient strength for storage and handling.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The perforation lines create localized weakness only in the region of the opening flap, while the rest of the carton maintains its full structural strength. The remaining body of the carton after flap removal retains adequate integrity for upright storage and protection of contents.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS8959877B2Food packaging carton and method of making packaging carton

Publication Date: 2015.02.24 QUAKER OATS CO

AI summary

A packaging carton for a food product is disclosed, where the carton includes a front face, a back face, two side faces, a top face and a bottom face, where these faces define an interior storage cavity, at least the back face of the packaging carton includes a perforation defining an opening flap and the opening flap may be permanently removed by separating the opening flap from a face or faces of the carton along the perforation to define an access opening that allows access to the interior storage cavity. A method of making a packaging carton for a food product is also disclosed.