Cassette Compartment Locking Mechanism for Reduced Mobility Access
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Solution Overview
Problem
Existing systems for secure compartments in bank strong rooms do not adequately address the needs of customers with reduced mobility, as they require trust in bank agents for accessing and managing their cassettes, with uncertainties about the cassette's handling and repositioning.
Innovation Solution
A system with a removable cassette equipped with a door that can be locked in the closed position, featuring a first lock for blocking the cassette in its compartment, and mutual identification means between the cassette and compartment to authorize the first lock's operation, allowing three keys to be used for secure access and management by customers with reduced mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a customer with reduced mobility hands over their key to the agent for cassette access, then the customer can access their cassette contents, but the customer must trust the agent and there is no guarantee that only they have access to the contents
Solution Approach 1:
The system divides the locking mechanism into two independent parts: a first lock on the compartment door and a second lock on the cassette itself. Each lock requires its own key, so the customer retains control of their cassette key while the agent only has access to the compartment. This segmentation ensures that even if the agent has compartment access, they cannot open or access the cassette contents without the customer's key.
Solution Approach 2:
The invention introduces an identification key as an intermediary element that must be present in the compartment for the first lock to function. This creates a three-key system where the identification key acts as a mediator that links the compartment and cassette locks, ensuring that the cassette can only be accessed when properly identified and authorized through the mutual identification means.
2Ease of operation
If the agent carries the cassette from the compartment to the customer, then the customer can receive their cassette, but there is no certainty that the cassette will be put back in the correct compartment or that the agent did not open it during transport
Solution Approach 1:
By separating the compartment lock and cassette lock into independent systems with different keys, the invention ensures that the agent cannot open the cassette during transport. The customer retains exclusive control of the cassette key, so even if the agent carries the cassette, they cannot access its contents without the customer's key being present.
Solution Approach 2:
The mutual identification means provide feedback to confirm that the cassette is in the correct compartment. The identification key in the compartment and the corresponding recognition means on the cassette create a verification system that confirms proper placement, giving both the agent and customer assurance that the cassette is securely in its designated location.
3Reliability
If the compartment door lock is designed to require de-control operation with key B after locking with key A, then security is enhanced, but the complexity of the locking system increases
Solution Approach 1:
The identification key serves multiple functions: it locks the compartment door, it enables the cassette lock mechanism, and it provides mutual identification between compartment and cassette. This multi-functionality reduces the need for separate specialized mechanisms for each function, thereby managing complexity while enhancing security.
Data Source
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AI summary
The assembly has a removable case comprising a door locked in closed position, and lock (44) actuating tenons of the case, where the case is engaged in a compartment (1). A mutual identification unit assures mutual identification of the case and the compartment to authorize the actuation of the lock in case of success of the identification. The identification unit has a fixed identification key with a key-bit parallel to engagement direction of the case, and another lock (46) located on a rear surface of the case.