Restricted Access Container With Tab-Locked Inner Tray
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Solution Overview
Problem
Current restricted access containers are cumbersome to open and do not allow quick access by adults while effectively preventing children from accessing the contents.
Innovation Solution
A child-resistant container design featuring an outer shell and inner tray with protrusions and tabs that secure the tray within the shell, and a cover mechanism with a biasing element and locking mechanism that requires adult-like dexterity and cognitive skills to open.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If locks and securing features are implemented in containers to restrict access, then child safety is improved, but ease of operation deteriorates
Solution Approach 1:
The container is divided into an outer shell and an inner tray that can be separated. The inner tray is secured to the outer shell through a multi-step process involving tabs, protrusions, and notches, creating segmented security layers that are difficult for children to overcome but manageable for adults.
Solution Approach 2:
The container employs dynamic elements including flexible tabs that can bend and deflect, and a biasing element that provides automatic resetting of the locking mechanism. The tab's ability to flex and the biasing element's automatic return create a dynamic system that requires specific adult-like dexterity to operate while remaining simple in appearance.
2Reliability
If a secure locking mechanism is used to prevent child access, then security is improved, but opening speed deteriorates
Solution Approach 1:
The container is pre-assembled with the inner tray already secured to the outer shell through multiple attachment points (tabs with protrusions and notches). This preliminary securing creates a robust locked state that appears complex to open, while the pre-positioned components enable quick release when the correct adult action is applied.
Solution Approach 2:
The biasing element automatically resets the locking mechanism after opening, and the tab's flexibility allows it to self-return to its original position. This self-service capability eliminates the need for manual resetting or complex locking procedures, enabling both secure closure and rapid reopening without additional time investment.
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 prevents children from accessing the contents while allowing adults to easily open and close the container, ensuring secure storage of items like tobacco, cannabis, or medicines.
Implementation Method 1
a biasing element that is configured to push the cover away from the base
Implementation Method 2
The tab may flex toward the second wall when a force is applied to the tab. The first protrusion may disengage from the hole sidewall and the inner tray may be removed from the outer shell when the tab flexes toward the second wall.
Data Source
AI summary
A restricted access container may include an outer shell and an inner tray. The outer shell may define a recess. The outer shell may include a first wall, a second wall, a third wall, and an opening. The first wall may include a hole and a notch. The second wall may be opposite the first wall. The third wall may be coupled to each of the first wall and the second wall. The opening may be opposite the third wall. The inner tray may define a receiving area. The inner tray may include a tab, a first protrusion, and a second protrusion. The first protrusion may be disposed on the tab. The inner tray may be inserted through the opening into the recess of the outer shell such that the first protrusion is disposed within the hole of the first wall to fix the inner tray to the outer shell and the second protrusion is disposed within the notch.