Child Resistant Container Inverting Cap Key Mechanism

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Solution Overview

Problem

Existing child-resistant container designs fail to effectively prevent children from accessing potentially harmful spray products, as they can still find ways to activate the spray mechanism, posing a risk of accidental exposure to harmful substances.

Innovation Solution

A child-resistant container with an inverting cap top key mechanism that includes a container main body, an inner cap with key slots, and an outer cap with upwardly projecting keys, allowing the outer cap to be inverted and used to push down on the spray activator nozzle for activation, providing an additional layer of protection by requiring deliberate action to release the contents.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional child-resistant cap is used, then the container provides basic safety, but children can still activate the spray mechanism

Engineering Contradiction:
Improvechild resistanceVSAvoidspray activation risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The cap is divided into two separate components: an inner cap that threads onto the container and an outer cap that fits over the inner cap. The outer cap contains the spray activation key, while the inner cap has corresponding key slots. This segmentation prevents children from accidentally activating the spray, as they would need to manipulate both caps in a specific sequence to access the activation key.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The outer cap is designed to fit over the inner cap, creating a nested structure. The outer cap contains the spray activation key, while the inner cap has corresponding key slots. This nested design ensures that the activation key is protected within the inner cap structure, requiring deliberate manipulation to access and use the key for spray activation.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If the outer cap is removed and inverted for spray activation, then spray access is enabled, but the device complexity increases

Engineering Contradiction:
Improvespray activationVSAvoidcap structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The outer cap is designed to be inverted for spray activation. When inverted, the spray activation key on the outer cap aligns with and inserts into the corresponding key slot on the inner cap, enabling the spray mechanism. This inversion mechanism provides a clear, deliberate action that distinguishes intentional spray activation from accidental access, while the key-slot alignment ensures proper orientation.

Inventive Principle:
Principle #13The other way round (Inversion)

3Reliability

If the inner cap has key slots and the outer cap has projecting keys, then spray activation is controlled, but manufacturing precision requirements increase

Engineering Contradiction:
Improvespray controlVSAvoidkey alignment
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The key slots on the inner cap and the projecting keys on the outer cap are designed with asymmetric geometries that must align in a specific orientation for spray activation. This asymmetric design ensures that the caps can only be properly assembled and activated in the correct orientation, providing reliable spray control while the asymmetric features guide proper alignment during assembly.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS8360281B2Child resistant container with inverting cap top key for spray activation
Publication Date: 2013.01.29 DEJONGE ASSOCIATES INC
  • US8360281B2 patent drawing
  • US8360281B2 patent drawing
  • US8360281B2 patent drawing

AI summary

A child resistant container with inverting cap top key for spray activation includes (a) a container main body adapted to receive a sprayer container with a top-positioned spray activator and spray nozzle; (b) an inner cap adapted for permanent connection to the open top of the container main body and having at least one key slot to permit at least one key to be inserted therein to permit a spray activator of a spray container to be activated by depression; (c) cut-out(s) to expose the spray activator nozzle when needed; (d) an outer cap to fit over the inner cap and having upwardly projecting key(s) for spray activation when the outer cap is inverted and inserted into the inner cap.