Child-Resistant Container Lid With Spring Segmented Lock
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Solution Overview
Problem
Existing child-resistant containers are difficult for seniors to open and lack simplicity and safety in unlocking mechanisms, while also failing to provide secure and moisture-resistant storage.
Innovation Solution
A container design featuring a lid portion with an exterior cover and bottom ring separated by a compression spring, requiring a specific pressing and twisting motion to access the interior, which is easy for seniors to use and ensures secure, dry storage without sharp edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex latching mechanism with multiple components is used to secure the lid, then child resistance and security are improved, but ease of operation deteriorates
Solution Approach 1:
The lid assembly is segmented into multiple functional components: an exterior cover with protrusions, a bottom ring with corresponding protrusions, and a compression spring. This segmentation allows the mechanism to provide both security through multiple interlocking elements and ease of operation through a simple pressing and twisting motion that sequentially engages and disengages these segments.
Solution Approach 2:
The compression spring introduces dynamic behavior to the latching mechanism. When the user presses the lid, the spring compresses and allows the protrusions to align and engage. The dynamic interaction between the spring force and the user's twisting motion creates a mechanism that is secure during normal conditions but easily operable when intentional force is applied.
2Reliability
If a secure locking mechanism is implemented, then protection from children is improved, but device complexity increases
Solution Approach 1:
The compression spring serves multiple functions simultaneously: it provides the locking force to keep the lid secure, enables the pressing motion required for operation, and creates the alignment mechanism for the protrusions. This multi-functionality achieves security without requiring additional dedicated components for each function.
Solution Approach 2:
The mechanism uses the user's own pressing and twisting motion to both engage and disengage the locking mechanism. The spring automatically returns to its original state after compression, self-resetting the mechanism without requiring additional components or complex control systems.
3Ease of operation
If protruding elements are used for the twisting motion, then ease of operation is improved, but harmful factors increase due to sharp edges
Solution Approach 1:
The protrusions are designed with differentiated local qualities: they have enlarged gripping surfaces at their outer edges to facilitate easy twisting operation, while their inner portions that contact the spring and bottom ring maintain precise geometric shapes for proper mechanical engagement. This local differentiation optimizes both operability and safety.
Solution Approach 2:
The protrusions feature curved or rounded outer surfaces rather than sharp edges, providing comfortable gripping areas for users. The curved geometry maintains structural integrity for mechanical engagement while eliminating harmful sharp edges that could injure users.
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 container is easy for seniors to open, securely stores contents from children, and maintains contents in a dry, moisture-resistant manner without exterior sharp edges, enhancing user safety and accessibility.
Implementation Method 1
The lid portion may have an exterior cover and a bottom ring which are separated by a compression spring
Data Source
AI summary
A container with a security lock is provided. The container may have a lid (or “top”) portion and a bottom portion. The lid portion may have an exterior cover and a bottom ring which are separated by a compression spring. Once extended protrusions on both the exterior cover and bottom ring of the lid are vertically aligned, a specific pressing and then twisting motion must be used to separate the lid from the bottom portion to gain access to the interior of the container. The bottom portion may receive contents such as medication which may be securely stored and protected from children who might otherwise access an unprotected and unsecured container.