Child Resistant Packaging Tuck Flap Locking Mechanism

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Solution Overview

Problem

Child resistant packaging is often expensive, complicated to produce, not senior friendly, and ineffective after multiple uses, with plastic materials being difficult to recycle.

Innovation Solution

A recyclable child resistant package design featuring a container with an outer and inner cell, an extension panel, and a bias member, utilizing a tuck flap locking mechanism that is senior friendly and child resistant, made from materials like paperboard with a release mechanism for easy opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional child resistant packaging is used, then child safety is improved, but manufacturing cost increases and production complexity increases

Engineering Contradiction:

Improvechild safetyVSAvoidproduction complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The packaging system is divided into separate functional components: an outer container, an inner locking mechanism, and a tuck flap assembly. This segmentation allows each component to be manufactured independently using standard processes, reducing overall production complexity while maintaining child safety functionality through the coordinated interaction of these simpler parts.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The tuck flap locking member acts as an intermediary element that mediates between the outer container and the inner cell. This intermediate component enables child-resistant locking functionality without requiring complex integrated mechanisms, thereby simplifying production while ensuring reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If conventional child resistant packaging is used, then child safety is improved, but ease of operation for seniors deteriorates

Engineering Contradiction:

Improvechild safetyVSAvoidsenior friendliness

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The packaging design allows seniors to open the container through a simple pull motion on the tuck flap, which automatically triggers the release mechanism. This self-service approach eliminates the need for complex manual dexterity or small precise movements, making it easy for seniors to operate while still maintaining child safety through the engineered locking mechanism.

Inventive Principle:

Principle #25Self-service

3Reliability

If plastic materials are used in child resistant packaging, then child safety is improved, but recyclability deteriorates

Engineering Contradiction:

Improvechild safetyVSAvoidrecyclability

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The outer container and tuck flap are designed to be made from the same recyclable material (such as paperboard or cardboard), creating material homogeneity. This allows the entire packaging structure to be recycled together through standard paper recycling processes, eliminating the need for separating different plastic components and improving overall recyclability while maintaining child safety functionality.

Inventive Principle:

Principle #33Homogeneity

4Reliability

If conventional child resistant packaging is used, then initial child safety is improved, but effectiveness after multiple uses deteriorates

Engineering Contradiction:

Improvechild safetyVSAvoideffectiveness after multiple uses

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The locking mechanism is designed with dynamic components that can repeatedly engage and disengage through the tuck flap motion. The bias member and locking member work together to provide consistent locking force through multiple cycles, ensuring that child safety effectiveness is maintained even after numerous opening and closing operations without degradation.

Inventive Principle:

Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design provides a cost-effective, senior-friendly, and recyclable child resistant packaging solution that effectively prevents access by children while being easy for adults to open, maintaining functionality even after multiple uses.

Implementation Method 1

The bias member is configured to bias the tuck flap locking member toward a first position to cause the tuck flap locking member to engage the inner locking member.

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS12054324B2Child resistant packaging

Publication Date: 2024.08.06 HUB FOLDING BOX

AI summary

A container that is configured to have an open state and a closed state, in which the container includes an outer cell having a plurality of side panels including a first side panel and a second side panel. The outer cell defines a chamber having a first opening. An inner locking member is attached to an inner wall of the first side panel. An extension panel is coupled to the second side panel. The extension panel includes a first cover panel and a tuck flap, in which the tuck flap includes an extension member and a tuck flap locking member. In the closed state of the container, the first cover panel covers the first opening, and the extension member and the tuck flap locking member are tucked inside the chamber. A bias member biases the tuck flap locking member toward a first position to cause the tuck flap locking member to engage the inner locking member.