Child-Resistant Container With Two-Position Locking Mechanism
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Solution Overview
Problem
Existing child-resistant containers often require breaking the locking mechanism to access contents after engaging the child safety lock, making it difficult to re-open the container, especially if the seal is not removed before locking, rendering them unusable.
Innovation Solution
A child-resistant container design featuring a bottle with a threaded neck, an outer lid with projections, and an intermediate member that allows the lid to be securely locked without engaging the child safety lock initially, enabling easy access to the seal or contents and subsequent re-engagement of the lock mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the child safety lock is fully engaged before removing the seal, then child safety is improved, but the container becomes unusable and contents become inaccessible
Solution Approach 1:
The cap is divided into two distinct engagement positions: a first position where the cap engages the bottle neck without activating the child safety lock (allowing seal removal), and a second position where the cap fully engages to activate the child safety lock (preventing child access). This segmentation allows the container to provide both unrestricted access for adults and child-proof protection at different times.
2Reliability
If the child safety lock mechanism is associated with both the bottle neck and the cap, then child safety is improved, but the mechanism becomes extremely difficult to re-open
Solution Approach 1:
The cap is designed with dynamic engagement capability, allowing it to be selectively positioned in either a first position (partial engagement) or a second position (full engagement). The cap can be rotated or moved between these positions, enabling the user to transition from an open state (for seal removal) to a locked state (for child safety) and back again, making the mechanism adaptable rather than static and difficult to reopen.
3Ease of operation
If the cap is removed and re-engaged after seal removal, then access to the seal is enabled, but the child safety lock may be accidentally engaged
Solution Approach 1:
The seal is removed while the cap is in the first engagement position, where the child safety lock is not yet activated. This preliminary action of seal removal before full cap engagement ensures that the seal can be accessed and removed without the complexity of the locked mechanism interfering, and the cap remains in a state that allows easy manipulation for this initial access.
Data Source
AI summary
A child-resistant container including a bottle having an annular flange associated therewith, an intermediate member selectively engageable with the bottle and having an annular flange associated therewith, and an outer lid selectively engageable with both the intermediate member and the bottle, the outer lid including a plurality of lower projections for selectively engaging the annular flange of the intermediate member when the outer lid is engaged therewith and for selectively engaging the annular flange of the bottle when the intermediate member is removed from the bottle and the outer lid is engaged with the bottle. Removal of the intermediate member from the bottle allows the plurality of lower projections associated with the outer lid to engage the annular flange associated with the bottle thereby activating the child-resistant locking mechanism.