Multi-Ply Carton Handle for Heavy Beverage Loads

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Solution Overview

Problem

Cartons containing multiple beverage containers are often heavy and difficult to carry due to lack of strength and comfort in handling.

Innovation Solution

A multi-ply handle design is integrated into the carton, featuring elongated handle openings and reinforcing panels that provide additional strength and comfort, allowing for easier carrying of cans or bottles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a traditional single-ply handle design is used, then the carton structure is simple and easy to manufacture, but the handle lacks sufficient strength and comfort for carrying heavy loads

Engineering Contradiction:
Improvehandle strengthVSAvoidhandle structure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent implements a multi-ply handle structure where multiple layers of handle panels are nested within each other, with inner handle panels positioned inside outer handle panels. This nesting arrangement allows the handle to provide enhanced strength through multiple layers while maintaining a compact overall structure that does not significantly increase device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent uses multiple layers of handle panels (different plies) composed of cartonnage material to create a composite handle structure. The multi-ply construction combines multiple thin layers into a stronger composite handle that can support heavy loads while keeping individual layer thicknesses manageable for manufacturing.

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If a multi-ply handle design is implemented, then the handle provides improved strength and comfort, but the carton manufacturing process becomes more complex

Engineering Contradiction:
Improveease of carryingVSAvoidcarton manufacturing complexity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent divides the handle into multiple separate panels (first handle panel, second handle panel, inner handle panels) that are formed separately in the cartonnage blank and then assembled through folding and adhesive bonding. This segmentation allows each panel to be optimized independently while the overall assembly process integrates smoothly into standard carton manufacturing workflows.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extends the handle structure into the third dimension by creating inner handle panels that fold inward and position themselves within the space between outer handle panels. This dimensional approach allows the multi-ply construction to provide enhanced carrying comfort without significantly increasing the external footprint or complicating the manufacturing process.

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

3Quantity of substance

If the carton is designed to carry multiple beverage containers, then the carton capacity is increased, but the carton becomes heavier and more difficult to carry

Engineering Contradiction:
Improvenumber of containersVSAvoidease of carrying
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The nested multi-ply handle structure allows the handle to provide enhanced carrying capability for heavy loads of multiple containers while maintaining a compact form factor. The inner panels nest within outer panels to provide structural reinforcement without adding significant external bulk, enabling the carton to comfortably support increased quantities of beverage containers.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS7743968B2Carton having multi-ply handle
Publication Date: 2010.06.29 GRAPHIC PACKAGING INTERNATIONAL LLC
  • US7743968B2 patent drawing
  • US7743968B2 patent drawing
  • US7743968B2 patent drawing

AI summary

A blank and carton having a reinforced handle are provided.