Removable Coin Receptacle with Linked Shutter Mechanism
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Solution Overview
Problem
Existing secure collection methods for coin storage receptacles in machines are vulnerable to fraud and vandalism, particularly due to the risk of operators accessing coins during collection operations when the shutter is open before the removable cash box is withdrawn.
Innovation Solution
A money handling unit with a removable coin receptacle featuring a closing shutter that automatically closes when the trap is opened or closed, linking the shutter's movement to the trap's position, ensuring the orifice is secure during collection operations, and incorporating a 'one-off' mechanism for controlled access and withdrawal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a removable cash box with an orifice is used for coin insertion, then ease of operation is improved, but security against fraud by operators deteriorates
Solution Approach 1:
The closing shutter is opened in advance before the trap is opened, allowing coins to be inserted through the orifice. The shutter then closes automatically when the trap is opened, preventing operator fraud. This preliminary opening action enables easy coin insertion while subsequent automatic closing ensures security.
Solution Approach 2:
The system uses the trap's opening/closing state as feedback to automatically control the closing shutter's position. When the trap opens, the shutter closes; when the trap closes, the shutter opens. This feedback mechanism ensures the orifice is secure during collection operations while remaining accessible during normal use.
2Reliability
If a closing shutter is added to prevent operator fraud, then security is improved, but device complexity increases
Solution Approach 1:
The closing shutter mechanism is merged with the trap mechanism through shared actuating means. The same mechanical components that control the trap's opening and closing also control the shutter's opening and closing. This merging reduces overall device complexity by eliminating separate control systems while still providing security during collection operations.
3Ease of operation
If the shutter is opened before trap withdrawal to allow coin insertion, then ease of operation is improved, but the period of vulnerability to fraud increases
Solution Approach 1:
The closing shutter is opened preliminarily before the trap is opened to allow coin insertion. Once the trap opens, the shutter automatically closes, minimizing the vulnerability period. The preliminary opening enables easy operation, while the automatic closing upon trap opening reduces the time window for potential fraud to nearly zero.
Data Source
AI summary
A money handling unit provided with a removable coin receptacle consisting of a fixed structure includes a housing (1) and a trap (2) for accessing into the box internal space movable between an open position and a closed position and a receptacle (3) insertable into the trap (2) and forming a reception structure, wherein the receptacle (3) has an orifice (4) for inserting coins and a closing shutter (5) movable between an open position in which the orifice (4) is accessible and a closing position in which the orifice (4) is closed. The inventive receptacle has actuating elements (6, 7) for closing shutter (5) and the housing (1) has guiding members (9) interacting with the actuating elements (6,7) in such a way that the movement of the movable shutter is linked to the movement of the access trap (2).