Sliding Closure Mechanism for Child-Resistant Medicine Containers
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Solution Overview
Problem
Current medicine containers with push and turn mechanisms pose difficulties for individuals with limited dexterity, such as the elderly, while also being challenging for children to open safely, highlighting a need for a more accessible and child-resistant design.
Innovation Solution
A polyhedral container with a sliding closure mechanism and cantilevered depressible tabs that can be opened with finger or thumb pressure, providing an audible and visual indicator of closure, along with optional retaining buttons and locks for enhanced security and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a push and turn mechanism is used for container closure, then child resistance is achieved, but ease of operation for individuals with limited dexterity deteriorates
Solution Approach 1:
The closure mechanism is divided into separate functional components: a slider element that moves linearly and a depresstion tab that provides mechanical advantage. This segmentation allows the child-resistant function to be achieved through the slider's tracking mechanism while the depresstion tab simplifies user interaction by converting a sliding motion into a simple pressing action.
Solution Approach 2:
The depresstion tab acts as an intermediary mechanical element between the user's finger and the slider. It provides leverage and mechanical advantage, transforming a simple pressing motion into the force required to move the slider against the child-resistant locking mechanism, thereby easing operation for individuals with limited dexterity.
2Ease of operation
If a sliding closure mechanism is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The complexity of the sliding closure mechanism is localized to the cap portion of the container, while the container body remains simple. The slider and tracking features are confined to the cap assembly, allowing the bulk of the container to maintain a simple, cost-effective design. This localized complexity minimizes manufacturing costs while achieving the desired ease of operation.
3Reliability
If retaining locks are added for enhanced security, then child resistance is improved, but device complexity increases
Solution Approach 1:
The retaining lock feature is merged with the existing slider mechanism rather than being implemented as a separate system. The lock integrates with the slider's tracking features and the cap's internal structure, allowing enhanced security to be achieved through the same components that provide ease of operation, thereby minimizing the increase in device complexity.
Data Source
AI summary
Novel lockable safe containers for dispensing valuable, dangerous and potentially dangerous goods via a main opening that is easy for adults to open and difficult for children to open, using a finger pressure on a sliding closure with a deflectable extension operable by finger pressure to enable. The novel safe containers have many additional advantages including human factors, ergonomics, manufacturing, supply chain and distribution, warehousing, retail, tamper resistance advantages, and labeling. The slidable closure exits the main opening zone via an auxiliary opening but wholly without exiting the container in normal usage.