Container Closure Projections for Secure Engagement
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Solution Overview
Problem
Existing containers lack features for secure closure, easy handling, and efficient stacking, which complicates the retention and dispensing of various substances, particularly granular or viscous materials.
Innovation Solution
A container design featuring a closure with a skirt and projections for secure engagement, a tear strip with pull tabs, and a handle with a bail and gripping portion, enhancing secure closure, easy handling, and efficient stacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closure with skirt and projections is used for secure engagement, then closure security is improved, but device complexity increases
Solution Approach 1:
The closure is divided into distinct functional components: a top portion, a skirt with projections, and a tear strip with pull tabs. The projections are spaced apart and dimensioned with height greater than width, creating discrete engagement points with the container. This segmentation allows each component to perform its specific function while maintaining overall closure security.
2Ease of operation
If a tear strip with pull tabs is added for easy opening, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The tear strip with pull tabs is pre-configured on the closure before use. The frangible links are预先 positioned to connect the pull tabs to the tear strip, and the tear strip is attached to the skirt. When opening is needed, the user simply pulls the tabs which immediately activates the predetermined tearing action, eliminating the need for complex manual opening procedures.
3Ease of operation
If a handle with bail and gripping portion is added for easy handling, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The handle assembly merges multiple functional elements into a single integrated structure: the bail forms the arch-shaped lifting component, while the gripping portion with support structure and outer gripping surface provides a comfortable handhold. The stiffening projection extends between the bail and gripping portion to reinforce the connection. This merging allows both lifting and gripping functions to be achieved through one attached component rather than separate elements.
4Reliability
If projections with height greater than width are used for engagement, then closure security is improved, but manufacturing precision requirements increase
Solution Approach 1:
The projections exhibit local quality in their dimensional characteristics, with height deliberately made greater than width at the engagement interface with the container. This localized dimensional differentiation enhances engagement security at the critical interface without requiring uniform precision throughout the entire projection structure. The spaced-apart arrangement further distributes the engagement load across multiple points.
Data Source
AI summary
A container that may be used for retaining and dispensing matter is provided. The container includes a closure. The closure includes a top portion having an outer edge, a skirt downwardly depending from the outer edge and having an inside surface and a lower edge, and a plurality of spaced apart projections supported at the inside surface of the skirt. The projections are dimensioned such that a height of the projections in a vertical direction is greater than a width of the projection in a horizontal direction. The projections are configured to releasably engage an open end of the container for securing the closure to the container.