Swivel Lid Closure Device with Variable Radius Locking Hook
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Solution Overview
Problem
Existing locking devices for containers with lids are not sufficiently childproof and can be easily opened by children, while being difficult for adults to open in a straightforward manner.
Innovation Solution
A locking device with a locking hook that changes pivot radius during unlocking, requiring a specific sequence of horizontal and vertical movements to open, integrated into a frame and lid design that includes actuating elements and reinforcing ribs, preventing accidental opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a closure device with a dispensing unit is integrated into the container, then the functionality is improved by enabling portion dispensing, but the device complexity increases due to additional components
Solution Approach 1:
The closure device integrates multiple functions (closing, dispensing, dosing) into a single unit. The dispensing unit is combined with the closure device, and the dosing element is integrated into the closure device, eliminating the need for separate dispensing and dosing devices.
Solution Approach 2:
The closure device serves multiple purposes: it seals the container, enables portion dispensing through the dispensing unit, and provides dosing control through the integrated dosing element. This multi-functional design replaces what would traditionally require separate devices.
2Ease of operation
If the closure device allows easy opening and closing operations, then the ease of operation is improved, but the reliability may worsen due to potential improper closure
Solution Approach 1:
Instead of relying on the user to correctly close the cap, the design ensures that proper closure is achieved through the structural interaction between the cap and closure device. The cap engages with the closure device in a way that automatically ensures proper sealing when closed.
Solution Approach 2:
The closure device structure itself ensures proper closure through its design features. The cap and closure device have complementary geometries that guide proper engagement, and the dosing element is positioned to automatically interact with the dispensing unit when the cap is closed.
3Device complexity
If the dosing element is integrated into the closure device, then the device complexity is reduced by eliminating separate components, but the ease of manufacture worsens due to integration requirements
Solution Approach 1:
While the dosing element is integrated into the closure device, the closure device itself is segmented into distinct functional components (cap, closure device body, dosing element, dispensing unit) that can be manufactured separately and then assembled. This allows for specialized manufacturing of each component while achieving integration in the final product.
Data Source
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AI summary
The invention relates to a closing device with a frame (10) and a swivel lid (30). It comprises at least first locking means (70) for holding the lid (30) in the closed position. In the locked state, a latching hook (71) reaches behind a locking surface (74) of a latching tongue (72), and can be swiveled about a swivel axis (76). The latching hook (71) can further be moved from a rest position into an unlocking position. A distance between the swivel axis (76) and an outer edge (71a) of the latching hook (71) is larger than a distance between the swivel axis and the locking surface (74) in the rest position of the latching hook (71), and smaller than the distance between the swivel axis (76) and the locking surface in the unlocked position of the latching hook (71). The invention also relates to a container with such a closing device.