Dual-Mode Container Lock Catch for Simpler Secure Closure
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Solution Overview
Problem
Existing lockable container arrangements for consumable materials, such as dispensers in kitchens and toilets, face issues with proper locking mechanisms that require separate snap-locks and are complex, leading to increased costs and assembly complexity, especially when transitioning between key-operated and push-button operated modes.
Innovation Solution
A lockable container arrangement with a lock catch that can be selectively set in key-operated or push-button operated modes, using a lock cylinder with peripheral ribs and recesses to engage and disengage the locking mechanism, allowing for a single combined lock solution that reduces components and assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate snap-lock is provided to maintain the container closed when the key is not used, then the container can be properly locked, but the complexity of the container and the cost for materials and assembly increase
Solution Approach 1:
The patent combines the snap-lock and lock catch into a single integrated locking mechanism. The lock catch serves dual functions: it acts as both the locking element and the snap-lock, eliminating the need for a separate snap-lock component. This merging reduces component count, simplifies assembly, and lowers costs while maintaining reliable locking functionality.
Solution Approach 2:
The lock catch is designed to perform multiple functions: it engages with the locking edge to secure the container, provides snap-lock action through its resilient nature, and can be operated by both key and push-button mechanisms. This multi-functionality eliminates the need for separate dedicated snap-lock and lock catch components.
2Reliability
If a separate snap-lock is provided to maintain the container closed when the key is not used, then the container can be properly locked, but the cost for materials and assembly increase
Solution Approach 1:
The patent combines the snap-lock and lock catch into a single integrated locking mechanism. The lock catch serves dual functions: it acts as both the locking element and the snap-lock, eliminating the need for a separate snap-lock component. This merging reduces component count, simplifies assembly, and lowers costs while maintaining reliable locking functionality.
3Ease of operation
If the lock catch is made resilient to provide snap-lock action, then the container can be easily opened by hand, but the lock may not maintain proper locking position when key operation is required
Solution Approach 1:
The spring element is pre-loaded to provide snap-lock action during normal operation, enabling easy manual opening. When key operation is required, the key turning action first overcomes this spring force to disengage the locking edge, then the spring returns the lock catch to its proper locking position. This preliminary spring loading enables both easy manual operation and reliable key-locked positioning.
Solution Approach 2:
The lock catch is designed with resilient properties that allow it to dynamically respond to different operating conditions. During normal closing, the spring provides snap-lock action for easy opening. During key operation, the lock catch can be forced against the spring force to achieve disengagement, then returns to its stable locked position when the key is removed. This dynamic behavior accommodates both manual and key-operated modes.
Data Source
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AI summary
The invention relates to a lockable container arrangement comprising an interior and an exterior, said container comprising a base part (2), a cover pivotally attached to the base part (2) for displacement between a closed position in which the cover and the base delimit a substantially enclosed space and an open position, a lock mounted on said container, said lock comprising a lock catch (11) operable from the exterior of the container, which lock catch (11) engages a receiving portion to lock the container. The container arrangement can be selectively set in a key operated mode, wherein the lock catch (11) is operable by a key, or in a push button operated mode, wherein the lock catch (11) is operable by the application of a force onto the lock by a user.