Capping Device Bead Locking for Pressure Resistance
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Solution Overview
Problem
Existing capping devices exhibit insufficient pressure resistance, leading to accidental opening when storing carbonated drinks, and are difficult to manipulate when transitioning from an open tilted position to a closed position.
Innovation Solution
A capping device with a cap and lower ring configuration, featuring a helical thread, hinge device, and locking mechanism, including a bead and stop, which allows for secure attachment, improved pressure resistance, and easier manipulation between positions, utilizing a bead and stop to assist in the movement of the second sector between lowered and raised positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cap is designed with a hinge device to allow easy opening, then the ease of operation is improved, but the pressure resistance deteriorates causing accidental opening
Solution Approach 1:
The lower ring is divided into two sectors: a first sector with attachment means that remains fixed to the container neck, and a second sector that can rotate relative to the first sector. This segmentation allows the cap to be easily opened while maintaining pressure resistance through the fixed first sector's attachment means.
Solution Approach 2:
The second sector of the lower ring is designed to be movable, allowing it to rotate between a lowered position (for easy opening) and a raised position (for secure closing). This dynamic element enables the device to switch between ease of operation and pressure resistance as needed.
2Ease of operation
If the second sector of the lower ring is made movable to facilitate opening, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The lower ring is segmented into two sectors connected by a simple hinge, allowing the second sector to rotate independently. This segmentation achieves the desired functionality with minimal structural complexity.
Solution Approach 2:
A simple hinge acts as an intermediary element between the two sectors of the lower ring, enabling the second sector to rotate relative to the first sector without requiring complex mechanical structures.
3Reliability
If the cap is designed to remain attached during pressure, then the pressure resistance is improved, but the ease of operation deteriorates making manipulation difficult
Solution Approach 1:
The second sector of the lower ring is designed to be movable, allowing it to rotate between a lowered position (for easy opening) and a raised position (for secure closing). This dynamic element enables the device to switch between ease of operation and pressure resistance as needed.
4Reliability
If attachment means are provided on the entire lower ring, then the pressure resistance is improved, but the ease of operation deteriorates preventing cap rotation
Solution Approach 1:
The lower ring is divided into two sectors: a first sector comprising coupling elements that project radially into the lower ring and are intended to be arranged under the coupling collar to retain the lower ring axially in the container neck, and a second sector that is hinged to the first sector. This segmentation allows the second sector to rotate freely without attachment means, enabling easy cap manipulation.
Solution Approach 2:
Attachment means are provided only on the first sector of the lower ring, not on the entire ring. This local quality approach maintains pressure resistance where needed (at the attachment point) while allowing free rotation of the second sector for ease of operation.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
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.