Child-Resistant Packaging With Slidable Blister Card Retention

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Solution Overview

Problem

Conventional packaging containers fail to effectively prevent access by children while remaining accessible to senior citizens and are not environmentally friendly or secure against theft and tampering.

Innovation Solution

A child-resistant packaging container design that securely retains a slidable blister card within a housing, requiring multiple steps to access, using a tear-resistant material and a seamless cover to prevent complete removal, with features like slots and notches to facilitate senior-friendly use and prevent tampering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional packaging containers are used, then they are easy to open, but children can access the contents easily

Engineering Contradiction:

Improvechild resistanceVSAvoidaccessibility for seniors

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The packaging employs a dynamic multi-step opening mechanism where the blister card can be partially inserted and removed. The system transitions between locked (nodes in slots) and unlocked (nodes pressed out) states, requiring deliberate sequential actions that are difficult for children but manageable for seniors with adequate dexterity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The packaging is divided into separate functional components: a housing with slots, a blister card with nodes, and a flap mechanism. This segmentation allows each component to perform its specific function in the child-resistant sequence while maintaining overall accessibility for intended users.

Inventive Principle:

Principle #1Segmentation

2Reliability

If a secure child-resistant mechanism is implemented, then child access is prevented, but the packaging becomes more complex

Engineering Contradiction:

Improvechild resistanceVSAvoidpackaging structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The packaging system is self-contained with all child-resistant functionality integrated into the basic structure. The slots, nodes, and flap work together automatically without requiring external devices, electronic components, or complex assembly instructions, maintaining simplicity despite the multi-step security mechanism.

Inventive Principle:

Principle #25Self-service

3Reliability

If a seamless cover is used, then theft and tampering are deterred, but manufacturing difficulty increases

Engineering Contradiction:

Improvesecurity against theft and tamperingVSAvoidcover fabrication

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The cover is formed as a seamless thin-walled structure that provides security through its continuous geometry rather than complex features. This seamless design prevents easy prying and tampering while remaining compatible with standard forming processes for plastic containers, balancing security with manufacturability.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS8602218B2Child-resistant packaging container and blank and method for making the same

Publication Date: 2013.12.10 COLBERT PACKAGING CORP

AI summary

A childproof and senior friendly packaging container having a housing that defines a chamber for removably receiving a blister card or sheet. The blister sheet includes a flap on its end that is designed to engage a flap extending into the chamber of the housing to retain the blister card within the housing in an extended position. A node on the blister card flap is sized to fit within a slot or hole on the housing to retain the blister card in a stored position.