Container Reinforcement In Lid And Bottom Recesses For Crush Resistance

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Solution Overview

Problem

Existing containers lack sufficient reinforcement features, particularly at their ends, which can lead to deformation or damage during handling and storage, especially when holding heavy or tightly packed articles.

Innovation Solution

A container design featuring a reinforcement member integrated into the lid and bottom recesses, formed from pulp fiber materials, which provides structural support and resistance to crushing and warping through molding processes, ensuring robustness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If reinforcement members are integrated into the lid and bottom recesses, then the container's resistance to deformation is enhanced, but the device complexity increases

Engineering Contradiction:

Improveresistance to deformationVSAvoidstructural complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The reinforcement member is integrated directly into the lid recess as a unified structure, combining the lid and reinforcement functions into a single component assembly. This eliminates the need for separate reinforcement elements and reduces the number of parts while maintaining enhanced structural strength and resistance to deformation.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The reinforcement member is formed from molded pulp fiber material, which creates a composite structure that combines the structural integrity of molded pulp with the functional requirements of container reinforcement. This composite approach provides enhanced strength and deformation resistance while maintaining manufacturing efficiency through single-material construction.

Inventive Principle:

Principle #40Composite materials

2Strength

If molded pulp fiber materials are used for reinforcement members, then the structural support and resistance to crushing is improved, but the manufacturing process complexity increases

Engineering Contradiction:

Improveresistance to crushingVSAvoidmanufacturing process complexity

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The reinforcement member is pre-formed from molded pulp fiber material before being integrated into the container lid assembly. This preliminary formation of the reinforcement structure allows for optimized structural support and crushing resistance to be built into the component during manufacturing, rather than requiring additional assembly steps or post-processing.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The molded pulp fiber material undergoes parameter changes during the molding process, transforming from raw pulp fibers into a structurally optimized reinforcement member with specific density, strength, and dimensional properties. This parameter transformation enables the material to provide enhanced crushing resistance while being formed through a controlled manufacturing process.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12448168B2Container with reinforcement features, related systems and methods

Publication Date: 2025.10.21 GRAPHIC PACKAGING INTERNATIONAL LLC

AI summary

A container for holding at least one article includes a body having a front wall, a back wall, and at least one side wall extending at least partially around an interior of the container, a lid repositionable between a closed position at least partially overlying the body and an open position at least partially raised away from the body, the lid comprising a lid panel and a lid flange extending upwardly from the lid panel to at least partially form a lid recess, a reinforcement member at least partially received in the lid recess, and a closed bottom comprising a bottom panel attached to a portion of the body.