Container Capping Device Bead Locking Mechanism
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Solution Overview
Problem
Existing capping devices for containers, particularly those used for carbonated drinks, exhibit insufficient pressure resistance and are difficult to manipulate when transitioning from an open tilted position to a closed position due to inadequate attachment mechanisms.
Innovation Solution
A capping device with a cap and lower ring design that includes a helical thread system and a locking mechanism, allowing the cap to securely attach and detach from the container neck, featuring a bead on the outer peripheral skirt that rests against the container neck for enhanced pressure resistance and a hinge device facilitating easy rotation between positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lower ring has no means of attachment in the section connected to the cap by the hinge device, then the cap can rotate freely between lowered and raised positions, but the capping device exhibits insufficient resistance to pressure and the cap may open inadvertently
Solution Approach 1:
The lower ring is designed with non-uniform attachment means distribution: the first sector has attachment means while the second sector (connected to cap) has no attachment means. This local differentiation allows free rotation for ease of operation in the second sector while maintaining pressure resistance through attachment means in the first sector.
2Reliability
If the lower ring has attachment means distributed around its circumference, then pressure resistance is improved, but the cap becomes difficult to manipulate when moving from open tilted position to closed position
Solution Approach 1:
The lower ring is segmented into two distinct sectors: a first sector with attachment means for pressure resistance, and a second sector without attachment means for easy cap manipulation. This segmentation allows each sector to fulfill its specific function without interfering with the other.
3Ease of operation
If the cap includes ratchet means to keep it in an open tilted position, then the cap can be easily locked open, but the device complexity increases and pressure resistance remains insufficient
Solution Approach 1:
The ratchet means are extracted from the cap and relocated to the lower ring structure. This removes the complex locking mechanism from the cap itself, simplifying the cap design while maintaining the ability to lock in the open tilted position through the lower ring's geometric constraints.
Data Source
AI summary
The invention refers to a capping device intended to be fixed on a neck (2) of a container including an orifice (3), including the capping device:a cap (1) which has a helical thread (7) intended to cooperate with a helical thread (6) formed in the neck (2);a lower ring (9) fixed axially to the neck (2);a hinge device that connects the cap (1) to the lower ring (9), including the capping device in addition a cap locking device (1) configured to lock the cap (1) in an open tilted position, including such a locking device a bead (22) which is formed, between the two blades (11, 12), and which is configured to rest against the neck (2) of the container when the cap (1) is in the open tilted position, the heel (22) has an internal face where at least one of the ribs of the helical thread series (7) is formed.