Releasable Container Cap With Push-to-Release Flex Tabs
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Solution Overview
Problem
Conventional container caps require multiple turns to remove and often get misplaced, necessitating two hands for operation, which is inconvenient, especially when occupied, and tethering solutions interfere with drinking or pouring.
Innovation Solution
A releasable container cap with inward protruding male engagement features, such as ribs or rings, that can be disengaged by pressing inward tabs to flex outward, allowing removal without rotation, and a tamper-proof ring for secure attachment to the bottle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional threaded caps are used, then the cap can be securely attached to the container, but removal requires multiple rotations and both hands, reducing ease of operation
Solution Approach 1:
The cap transitions from a static threaded connection to a dynamic push-to-release mechanism. The flexible tabs with inward-protruding features allow the cap to be quickly disengaged by pressing, converting the rotational disengagement into a linear pushing motion that is faster and can be done with one hand.
Solution Approach 2:
The cap is segmented into two sidewall sections with gaps between them, allowing independent movement of each section. This segmentation enables the flexible tabs to deflect outward when pressed, facilitating quick release without requiring rotation of the entire cap structure.
2Reliability
If the cap is tethered to the bottle, then the cap cannot be lost, but the tether interferes with drinking or pouring
Solution Approach 1:
The tethering function is extracted from a separate tether component and integrated directly into the cap structure through the flexible tabs and gaps. The cap is retained through its own structural flexibility and engagement features rather than an external tether, eliminating the interference problem.
3Strength
If the cap structure is made continuous for strength, then structural integrity is improved, but flexibility for disengagement is reduced
Solution Approach 1:
The cap sidewalls are divided into two separate sections with gaps between them, breaking the continuous structure. This segmentation provides the necessary flexibility for the tabs to deflect outward during disengagement while maintaining sufficient structural integrity through the engagement features and overall cap design.
Solution Approach 2:
Different parts of the cap have different structural properties: the engagement features and top piece maintain rigidity for secure attachment, while the sidewall sections with gaps provide local flexibility for the release mechanism. This local differentiation of structural quality resolves the contradiction between overall strength and localized flexibility.
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
Enables single-handed operation, prevents cap loss, and maintains cap-bottle attachment for easy recycling, enhancing convenience and compliance.
Implementation Method 1
the tabs are configured to be pressed inward thereby causing the sidewall sections to flex outward to disengage the threads of the container
Data Source
AI summary
A container has an improved releasable cap that is releasable with upward movement of the cap. A coupler also couples the cap to the container and provides for a stowed position in which the cap does not interfere with use of the container, and maintains the cap in a connected to configuration with the container at all times.