Packaging Element Interlocking Protrusions Hollows Stacking Stability

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Solution Overview

Problem

Existing packaging elements lack aesthetic appeal and secure stacking capabilities, leading to instability and potential displacement during storage and transportation.

Innovation Solution

Incorporating complementary protrusions and hollows on the packaging elements, allowing for stable interlocking and secure stacking, with the option to feature designs such as logos or product shapes, and using environmentally friendly materials like molded pulp for production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If packaging elements are designed with simple flat structures, then manufacturing is simple and inexpensive, but stacking stability and aesthetic appeal are poor

Engineering Contradiction:
Improvestacking stabilityVSAvoidstructural complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent applies dimensionality change by transforming flat 2D packaging surfaces into 3D structures through protrusions and hollows. The cover-wall portions are folded along folding lines to create raised and recessed areas, adding vertical dimensionality that enables interlocking stacking while maintaining manufacturing simplicity through die-cutting and folding operations.

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

Solution Approach 2:

The packaging element is segmented into distinct functional zones: accommodating portion, side-wall portions, and cover-wall portions with protrusions and hollows. This segmentation allows each zone to perform its specific function while the overall structure maintains simplicity through a single-blank construction that is die-cut and folded into the final multi-functional form.

Inventive Principle:
Principle #1Segmentation

2Reliability

If packaging elements are made with interlocking protrusions and hollows, then stacking stability and displacement prevention are improved, but manufacturing complexity increases

Engineering Contradiction:
Improvestacking securityVSAvoidmanufacturing simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The protrusions and hollows are pre-formed during the die-cutting and folding process before stacking occurs. The cover-wall portions are folded along predetermined folding lines to create the interlocking features in advance, so that when packaging elements are stacked, the interlocking action is immediate and requires no additional assembly steps.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The packaging element is designed as a self-contained single blank that self-assembles through folding along predetermined lines to form the three-dimensional structure with integrated protrusions and hollows. This self-service approach eliminates the need for separate components or complex assembly operations, maintaining manufacturing simplicity while achieving reliable stacking.

Inventive Principle:
Principle #25Self-service

3Shape

If packaging elements use conventional flat designs, then production is simple and cost-effective, but aesthetic appeal and visual presentation are lacking

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidstructural complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent enhances aesthetic appearance by creating three-dimensional protrusions and hollows on the cover-wall portions through folding along folding lines. These dimensional features cast shadows and create visual interest from multiple angles, transforming plain flat packaging into visually appealing structures that maintain relatively simple single-blank construction.

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

Data Source

PatentUS11377256B2Packaging element constructed from folded blank
Publication Date: 2022.07.05 PAPACKS SALES GMBH
  • US11377256B2 patent drawing
  • US11377256B2 patent drawing
  • US11377256B2 patent drawing

AI summary

A packaging element for accommodating at least one product includes a blank which has a number of portions connected to one another by folding lines. The portions include an accommodating portion having at least one receptacle, the shape of which is matched to the shape of a product to be accommodated, a first side-wall portion, a first cover-wall portion, a second side-wall portion, and a second cover-wall portion. The first cover-wall portion may have at least one hollow, and the second cover-wall portion may have at least one protrusion with a shape and position complementary to the hollow.