Carton Crown Guard Flap Retention Mechanism

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional cartons lack effective features for securely holding and protecting beverage containers, particularly in preventing movement and breakage during storage and transportation.

Innovation Solution

The carton design incorporates a central panel with a stop edge and crown guard flaps that fold over to create a crown retention feature, providing stability and protection for the containers by forming an open-ended sleeve with crown guard flaps that overlap the central panel, ensuring secure positioning and retention of the containers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional carton design is used, then the structure is simple, but the carton cannot effectively secure and protect beverage containers during storage and transportation

Engineering Contradiction:
Improvecontainer security and protectionVSAvoidcarton structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The insert is divided into multiple functional components: a central panel for structural support, inner end flaps for closing ends, and crown guard flaps for securing container crowns. This segmentation allows each component to perform its specific protective function while maintaining an overall simple insert structure that can be made from a single blank.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The insert is nested within the carton, with the insert blank being positioned inside the carton blank before forming. The insert's central panel and flaps are nested within the carton's interior space, creating a compact integrated structure that provides enhanced protection without significantly increasing external dimensions.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If conventional carton design without inserts is used, then the manufacturing process is simple, but the carton lacks features for preventing container movement and breakage

Engineering Contradiction:
Improvecontainer stability and breakage preventionVSAvoidmanufacturing process complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The insert blank is combined with the carton blank in a single forming operation. The insert's central panel, end flaps, and crown guard flaps are all formed and positioned within the carton simultaneously, creating an integrated protective structure without requiring separate assembly steps for the insert components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The crown guard flaps are designed to automatically position themselves over the container crowns when the carton is filled and sealed. The flaps' geometry and folding structure enable them to engage with the container crowns without requiring additional fastening mechanisms or complex adjustment procedures.

Inventive Principle:
Principle #25Self-service

3Reliability

If crown guard flaps are added to the insert, then container crown protection is improved, but the insert structure becomes more complex

Engineering Contradiction:
Improvecrown protectionVSAvoidinsert structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The crown guard flaps are positioned specifically at the locations where container crowns will be inserted, providing localized protection exactly where needed. The flaps are formed from the insert blank at precise positions to engage with individual container crowns, ensuring protection without adding material or structure to areas where it is not needed.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS9718246B2Carton with article protection features
Publication Date: 2017.08.01 GRAPHIC PACKAGING INTERNATIONAL LLC
  • US9718246B2 patent drawing
  • US9718246B2 patent drawing
  • US9718246B2 patent drawing

AI summary

A carton for holding a plurality of containers. The carton can comprise a plurality of panels that extends at least partially around an interior of the carton. The plurality of panels comprises a top panel. An insert can comprise a central panel, an inner end flap foldably connected to the central panel, and at least one crown guard flap foldably connected to the inner end flap adjacent a crown guard opening in the insert. The central panel can comprise a stop edge adjacent the crown guard opening, and the crown guard flap can comprise a first portion foldably connected to the inner end flap and a second portion foldably connected to the first portion. The top panel can at least partially overlap the central panel, and the second portion of the crown guard flap can be disposed adjacent the stop edge of the central panel.