Tethered Screw-Cap Closure With Anchor Ring To Prevent Detachment
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Solution Overview
Problem
Existing closure devices for containers, particularly those used in food containers, often result in environmental pollution due to loose components that detach and are not recycled, posing a risk to the environment.
Innovation Solution
A closure device with a screw cap and anchor ring connected via a tensile-resistant mechanism, featuring guide means that require a rotational movement for opening, and a fastening mechanism that attaches to the container neck without a material connection, ensuring components remain integrated during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If detachable components are used in closure devices, then ease of operation is improved, but environmental pollution increases due to loose components not being recycled
Solution Approach 1:
The patent combines previously detachable components (screw cap, pouring spout, anchor ring) into a single integrated upper closure part that remains attached throughout use. The connecting device permanently connects these components to each other and to the lower closure part, preventing them from becoming loose and ensuring they are recycled together as a complete unit.
2Object-affected harmful factors
If a tensile-resistant connecting device is used to permanently connect components, then environmental pollution is reduced, but device complexity increases
Solution Approach 1:
The connecting device merges multiple functions into a single component: it connects the screw cap to the anchor ring, provides tensile resistance to prevent detachment, and integrates with the guide means for opening operation. This consolidation reduces the number of separate parts while maintaining all necessary functions.
3Ease of operation
If guide means requiring rotational movement are used, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The guide means are integrated into the structure of the screw cap and lower closure part, with guide elements that naturally guide the rotational opening movement. The guide means work in conjunction with the connecting device and anchor ring as a unified system, reducing the need for separate precision components while maintaining smooth operational guidance.
Data Source
Figure 1~2
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Figure 5~6
AI summary
The present invention relates to a closure device (1) for a container, wherein the closure device comprises a lower closure part (2) and a closure upper part (3), wherein the lower closure part (2) comprises a pouring channel (37) formed along a closure axis (50) and having an inlet opening (4) and a pouring opening (5), wherein the upper closure part (3) comprises a screw cap (6), an anchor ring (7) and a connecting device (8), wherein the screw cap (6) comprises a cover plate (9) and a cap jacket (10) which adjoins the cover plate (9) on the circumferential side and extends essentially axially, wherein the upper closure part (3) and the lower closure part (2) are designed such that the screw cap (6) closes the pouring opening (5) in a liquid-tight manner in a closed position and at least partially exposes it in an open position of the screw cap (6).