Foldable Packaging Box With Integrated Support Frame

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Solution Overview

Problem

Packaging boxes in the related art have a complicated structure, high manufacturing cost, and are not foldable, making them unfavorable for storage.

Innovation Solution

A packaging box design featuring a cylindrical box body with cuts and integrated support frames, allowing for easy folding and storage, with a simple structure that reduces manufacturing costs and increases weight-bearing capacity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional packaging box structures are used, then product safety and grade improvement are achieved, but the structure becomes complicated and manufacturing cost increases

Engineering Contradiction:
Improveproduct safetyVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The packaging box is divided into modular components including a base body, lid, and multiple detachable support frames. Each support frame consists of separate connecting portions that can be independently assembled. This segmentation allows for simplified manufacturing of individual parts while maintaining the overall structural integrity and protective function of the complete packaging system.

Inventive Principle:
Principle #1Segmentation

2Reliability

If traditional packaging box structures are used, then product safety is ensured, but manufacturing cost becomes high

Engineering Contradiction:
Improveproduct safetyVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The packaging box is divided into modular components including a base body, lid, and multiple detachable support frames. Each support frame consists of separate connecting portions that can be independently assembled. This segmentation allows for simplified manufacturing of individual parts while maintaining the overall structural integrity and protective function of the complete packaging system.

Inventive Principle:
Principle #1Segmentation

3Strength

If rigid support structures are added to packaging boxes, then bearing capacity is improved, but foldability and storage convenience are reduced

Engineering Contradiction:
Improvebearing capacityVSAvoidfoldability
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The support frames are designed with hinged connecting portions that enable dynamic transformation between an extended configuration for supporting the packaging box and a folded configuration for compact storage. This dynamic design allows the same structural element to provide both strength when needed and compactness when not in use, resolving the contradiction between bearing capacity and foldability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3736220B1Packaging box
Publication Date: 2026.04.22 INT DESIGN PACKING CO LTD
  • EP3736220B1 patent drawingFigure 1
  • EP3736220B1 patent drawingFigure 2
  • EP3736220B1 patent drawingFigure 3

AI summary

Disclosed is a packaging box which includes a box body. The packaging box includes a cavity defined in the box body and a side wall surrounding the cavity, a support frame that disposed on an inner side of the side wall, and a bottom plate that is disposed in the cavity and at an end of the support frame. The support frame is integrated with the box body, an opening is provided in the box body, and the support frame is formed by bending the side wall located at the opening toward the cavity.