Dispensing Closure Locking Mechanism Prevents Accidental Opening
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Solution Overview
Problem
Existing dispensing closures can accidentally open, leading to product spillage, which may cause damage depending on the product type, and lack effective mechanisms to prevent accidental opening and ensure secure closure.
Innovation Solution
A dispensing closure with a rotatable dispensing part and base, featuring a hingedly connected lid, tamper-evident band, and flow regulation member, which allows secure closure and controlled product flow, preventing accidental opening through a locking mechanism and ensuring secure attachment to a container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple lid is used for dispensing closure, then ease of operation is improved, but reliability deteriorates due to accidental opening
Solution Approach 1:
The lid is designed to be dynamically movable between closed and open positions through a hinge connection, allowing easy operation while maintaining security when closed. The rotatable dispensing part adds another dynamic element that enables users to switch between locked and unlocked states as needed.
Solution Approach 2:
The closure is divided into distinct functional segments: a base attachable to the container, a rotatable dispensing part, and a hingedly connected lid. This segmentation allows each component to perform its specific function independently while contributing to overall reliability and ease of operation.
2Reliability
If a rotatable dispensing part with locking mechanism is added, then reliability is improved by preventing accidental opening, but device complexity increases
Solution Approach 1:
The locking mechanism utilizes the natural rotational movement of the dispensing part relative to the base. By incorporating co-operating formations that engage at specific rotational positions, the system achieves reliable locking without requiring additional complex components or mechanisms.
Solution Approach 2:
The locking function is merged into the rotational movement of the dispensing part itself. The co-operating formations are integrated into the basic structure of the dispensing part and base, combining the locking mechanism with the existing rotational capability rather than adding separate locking components.
3Ease of operation
If a hingedly connected lid is used, then ease of operation is improved for controlled dispensing, but reliability worsens due to potential accidental opening
Solution Approach 1:
The lid's hinged connection allows it to move dynamically between closed and open positions, enabling controlled dispensing when needed. The hinge design facilitates easy manual operation while the overall locking system prevents unintended movement.
Solution Approach 2:
The lid is separated as an independent hinged component from the main dispensing part, allowing it to function independently for controlled dispensing. This segmentation enables the lid to be opened slightly for controlled product flow while the main dispensing part remains locked in place.
Data Source
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AI summary
A dispensing closure (10) is provided and comprises a dispensing part (30) and a base (40). The dispensing part (30) has a lid (90) movable between an open position and a closed position. The dispensing part (30) is moveable relative to the base (40) between a locked position in which the lid (90) is held in the closed position and an unlocked position in which the lid can be moved to the open position.