Banknote Storage Container Seal Locking Mechanism
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Solution Overview
Problem
Conventional banknote storage containers lack sufficient security measures, particularly during handling, mounting, and transport, as the locking mechanism is primarily reliant on a lock, which can be improperly opened, and existing identification labels are prone to destruction by unauthorized means.
Innovation Solution
A paper sheet storage container with a seal attachment portion that uses a seal to indicate the closed state and lock the door, allowing for easy confirmation of improper opening attempts and maintaining locking even if the lock is improperly released.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lock mechanism is used to secure the door, then the door can be locked in a closed state, but the lock can be improperly opened by unauthorized means
Solution Approach 1:
The door securing system is segmented into two independent components: a lock mechanism and a seal mechanism. The lock (cylinder lock with keyhole) handles primary locking, while the separate seal (attached to the seal attachment portion) provides secondary security and visible indication. This segmentation ensures that failure or bypassing of one mechanism does not compromise the entire security system.
Solution Approach 2:
The seal acts as an intermediary security element between the door and the external environment. It provides an additional layer of protection that is visually verifiable and physically distinct from the lock mechanism, creating a mediator that enhances overall security without interfering with the primary locking function.
2Loss of information
If an identification label is used to indicate door status, then the closed state can be confirmed, but the label can be destroyed by unauthorized means
Solution Approach 1:
The seal is designed as a disposable or replaceable component that provides temporary but reliable indication of door status. Unlike permanent identification labels that can be tampered with, the seal can be intentionally removed or replaced by authorized personnel, providing a controlled lifecycle for the status indication element.
Solution Approach 2:
The seal serves as an intermediary indicator element that is more secure than simple labels. It provides visual confirmation of door status while being physically attached to the door structure, making it harder to remove or destroy without detection compared to adhesive labels.
3Reliability
If a seal attachment portion is added to provide seal-based security, then door security is enhanced and improper opening is detectable, but the device complexity increases
Solution Approach 1:
The security system is divided into modular segments: the seal attachment portion (with its mounting hole and attachment structure), the seal itself, and the lock mechanism. Each segment performs a specific function and can be manufactured and assembled independently, making the increased complexity manageable through modular design.
Solution Approach 2:
The seal attachment portion serves multiple functions: it provides structural mounting for the seal, creates a visible indication area, and works in conjunction with the lock mechanism. This multi-functionality justifies the added structural elements by consolidating several security-related functions into a single integrated component.
Data Source
AI summary
A paper sheet storage container and a paper handling apparatus that includes the container. The container includes an outer case, an open-closable door attached to the outer case, a lock that locks the door in a closed state with respect to the outer case, and a seal attachment portion that seals the door closed with respect to the outer case, so as to indicate that the door is closed with respect to the outer case, and to lock the door in the closed state with respect to the outer case. The paper sheet handling apparatus, includes a storage container mounting portion detachably mounted with the paper sheet storage container, which may function for storage of banknotes for handling within an outer case.