Hinged Closure With Segmented Hinge for Wide Opening Angle
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Solution Overview
Problem
Existing hinged closures for containers, especially those used with carbonized beverages, face issues such as limited opening angle, insufficient robustness, and leakage due to inadequate sealing and locking mechanisms, which restrict their ability to withstand internal pressure and external mechanical loads.
Innovation Solution
A hinged closure system comprising a ring-shaped lower part and a cap-like upper part interconnected by a hinge structure, featuring bayonet-type fastening means and stop elements to securely lock the lid in place, with a sealing mechanism that includes a barrier liner to prevent gas transmission and a tamper evidence system for initial opening indication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a main hinge connection is used to connect the closure body and lid, then the closure structure is simplified, but the freedom of movement is significantly limited and the opening angle is insufficient
Solution Approach 1:
The hinge connection is divided into multiple segments (first hinge connection and second hinge connection) rather than a single main hinge. This segmentation allows each hinge to handle specific movement requirements, enabling a wider overall opening angle while maintaining structural integrity. The first hinge connects the closure body to an intermediate element, and the second hinge connects the intermediate element to the lid, creating a multi-stage movement system.
Solution Approach 2:
The patent introduces an intermediate element that adds a dimensional component to the hinge system. Instead of a direct single-axis hinge connection, the multi-component hinge system incorporates movement in multiple dimensions, allowing the lid to achieve a greater range of motion while the closure body remains securely attached.
2Reliability
If the closure is designed to withstand high internal pressure from carbonized beverages, then sealing performance is improved, but the device complexity increases due to additional locking mechanisms
Solution Approach 1:
The locking mechanism is designed to be dynamic rather than static. The bayonet-type locking elements engage and disengage automatically based on the rotational position of the lid, providing secure locking when needed and easy opening when required. This dynamic mechanism responds to operational forces and maintains sealing integrity under pressure without requiring complex additional components.
Solution Approach 2:
The locking function is merged with the hinge structure itself. The bayonet-type locking elements are integrated into the hinge assembly, combining the movement function with the securing function in a single unified mechanism. This eliminates the need for separate, independent locking devices while maintaining reliable sealing performance.
3Reliability
If bayonet-type locking means are used to securely lock the lid, then the reliability against unwanted opening is improved, but the device complexity increases
Solution Approach 1:
The bayonet-type locking elements serve multiple functions simultaneously: they provide secure locking to prevent unwanted opening, enable controlled opening through rotation, and integrate with the hinge mechanism. This multi-functionality reduces the need for separate locking components, maintaining reliability while minimizing added complexity.
Data Source
AI summary
The invention is directed to a hinged closure (1) preferably molded in a closed position. The closure has a base (2) and a lid (3) interconnected to the base by a hinge arrangement (4). A latching mechanism (15) holds the closure (1) in position with respect to a neck (12) and prevents unwanted opening.