Container Closure Anchoring Mechanism for Reduced Opening Force
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Solution Overview
Problem
Existing container closure systems require excessive rotational force for opening, leading to potential spillage and loss of product, and do not facilitate easy use or secure sealing.
Innovation Solution
A closure system featuring primary and secondary anchors on the container neck and locking tabs on the cap, with anchor tabs that engage to secure the cap and provide a positive stop, allowing for easy opening and secure sealing with reduced manual force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional snap-on closure system is used, then the container provides basic closure functionality, but excessive rotational force is required for opening which may cause cap release and product loss
Solution Approach 1:
The closure system is segmented into distinct functional components: locking tabs on the cap, anchor tabs on the container neck, and a locking mechanism that divides the opening action into sequential steps. This segmentation allows the cap to be secured in multiple positions and opened progressively rather than requiring one large rotational force
Solution Approach 2:
The cap is preliminarily secured to the container body through the locking tabs engaging with the anchor tabs before final tightening. This preliminary engagement creates a pre-positioned locking state that requires less force to open, as the cap is already aligned and partially secured rather than requiring full rotational force from a neutral position
2Reliability
If a traditional snap-on closure system is used, then the container provides basic closure functionality, but secure sealing is not achieved
Solution Approach 1:
The locking and sealing functions are merged into a single integrated mechanism. The locking tabs and anchor tabs work together to simultaneously provide both the locking action and the sealing force, eliminating the need for separate sealing components while achieving reliable closure
Solution Approach 2:
The locking tabs serve multiple functions: they engage with the anchor tabs to secure the cap, provide the sealing force against the container opening, and indicate the locked position through their geometric design. This multi-functionality achieves secure sealing without proportionally increasing device complexity
3Reliability
If the cap is designed to prevent loss through attachment, then product security is improved, but product perception is reduced due to poor visibility
Solution Approach 1:
The cap design applies local quality by making specific portions transparent or translucent while maintaining structural integrity. The locking tabs and anchor tabs are positioned to provide security functions in specific locations, while other areas of the cap are optimized for visibility, allowing consumers to see the product contents while maintaining secure attachment
Data Source
AI summary
A closure system for a container includes a pair of primary anchors located opposite one another on an exterior surface of the neck. Each primary anchor has vertical and horizontal portions. A cap has an upper surface and a series of walls depending downwardly therefrom and at least first and second locking tabs extending downwardly from an underside of the cap. The locking tabs are located opposite one another, and there is at least one rib between the walls of the cap and the locking tabs. Each of the locking tabs has an inwardly extending anchor tab on an inside surface thereof the locking tab. The anchor tabs are arranged to engage the primary anchors when the cap is engaged with the neck and turned relative to the container. The vertical portions of the primary anchors are arranged to positively stop further rotation of the cap relative to the container.