Lid Stacking Steps for Paperboard Packaging Stability

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Solution Overview

Problem

Existing paperboard packaging containers and lids lack efficient and space-saving stacking features, leading to instability and difficulty in separation during production and storage.

Innovation Solution

A lid component for paperboard packaging containers featuring a two-step stacking configuration with a lid component stacking step and a container stacking step, allowing for minimal intrusion on the lid surface while providing high stability and space-saving nesting, along with interruptions for easy separation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If conventional stacking means are used on paperboard packaging containers, then basic stacking functionality is provided, but the stacking stability is insufficient and separation during production is difficult

Engineering Contradiction:

Improvestacking stabilityVSAvoidseparation ease

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The stacking means is divided into two distinct segments: a container stacking means on the container body and a lid stacking means on the lid component. These segments are spatially separated and functionally independent, allowing containers and lids to be stacked separately with different stacking configurations, thereby improving both stacking stability and ease of separation during production.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The lid stacking means is positioned on the outer lid surface at a location laterally outside the container stacking means, utilizing the lateral dimension rather than competing for the same vertical stacking space. This dimensional separation allows both stacking functions to coexist without interference, improving overall stacking stability while maintaining easy separation.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If stacking means are added to the lid, then stacking functionality is improved, but the lid surface area available for other purposes is reduced

Engineering Contradiction:

Improvestacking functionalityVSAvoidlid surface area

Core Design Contradiction:

Adaptability or versatilityVSArea of moving object

Solution Approach 1:

The lid stacking means is positioned asymmetrically on the outer lid surface, specifically at a location laterally outside the container stacking means. This asymmetric placement optimizes the use of available surface area by utilizing the peripheral region rather than the central area, thereby maintaining maximum surface area for labeling and branding while providing effective stacking functionality.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The lid stacking means is designed as a complementary copy of the container stacking means, with corresponding geometric features that enable mating stacking. This copying approach allows the lid to be stacked on containers or other lids without requiring additional surface area, as the stacking features are integrated into the existing lid periphery.

Inventive Principle:

Principle #26Copying

3Productivity

If a single stacking surface is used on the lid, then the structure is simple, but the stacking efficiency and space utilization are suboptimal

Engineering Contradiction:

Improvestacking efficiencyVSAvoidstacking structure complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The stacking structure is segmented into two distinct stacking means: container stacking means for stacking containers on the production line, and lid stacking means for stacking lids separately or on top of containers. This segmentation enables parallel stacking operations and optimizes space utilization in storage and transport, significantly improving stacking efficiency without requiring complex mechanisms.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The lid component with its dual stacking means serves multiple functions: it can be stacked on containers during production, stacked separately for storage, and the two stacking means can work together to create stable multi-layer configurations. This multi-functionality improves overall stacking efficiency and space utilization while maintaining a relatively simple structure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3464099B1Lid with stacking members

Publication Date: 2023.01.11 AR PACKAGING SYST AB

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AI summary

A lid component (14) for a paperboard packaging container (1 ), the lid component (14) comprising a lid part (20) and a connecting part (30) the lid part (20) comprising a top portion (21 ) and a side wall portion (22), the top portion (21 ) having an outer lid surface (23) and an inner lid surface (24) opposite to the outer lid surface (23) and a peripheral edge (25) surrounding the outer lid surface (23); and the connecting part (30) comprising an upper portion (31 ) and a lower portion (32) and having a lower edge surface (33). Stacking members (50) are arranged on the outer lid surface and comprise a lid component stacking step (51) and a container stacking step (52), the lid component stacking step (51 ) being arranged laterally outboard and below the container stacking step (52). The lower portion (32) of the connecting part (30) is adapted to be supported by the lid component stacking step (51). A lid component comprising a locking arrangement (45) and paperboard packaging container (1) comprising a lid component (14) are also disclosed.