Cylinder Lock Shutter Plate Automatic Operation
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Solution Overview
Problem
Existing cylinder lock protection devices require manual operation to move the shutter plate between closed and open positions, lacking ease of use due to the need for spring-biasing towards the open position only.
Innovation Solution
A cylinder lock protection device with closed and open direction urging means, where the closed direction urging force is stronger, allowing automatic movement of the shutter plate between positions using closed position side urging force control and a magnet lock for restricted state release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the shutter plate is spring-biased toward the open position side only, then the shutter plate can be automatically opened, but manual operation is required to move the shutter plate toward the closed position side
Solution Approach 1:
The patent applies the counterweight principle by introducing a closed direction urging spring that exerts force in the opposite direction to the open direction urging spring. The closed direction urging spring provides a counterbalancing force that enables automatic closing of the shutter plate, complementing the open direction urging spring's automatic opening function. This dual-spring system eliminates the need for manual operation while maintaining balanced automatic movement in both directions.
Solution Approach 2:
The patent implements dynamics by making the closed direction urging force controllable rather than constant. The closed position side urging force control means dynamically adjusts the closed direction urging force based on the magnet key's insertion and removal actions. When the magnet key is inserted, the control means suppresses the closed direction urging force; when removed, the control means activates it. This dynamic control enables automatic shutter plate movement while preventing unintended activation.
2Extent of automation
If the closed direction urging force is made larger than the open direction urging force, then the shutter plate automatically returns to closed position, but the shutter plate cannot be opened smoothly without excessive force
Solution Approach 1:
The patent applies feedback by using the magnet key's presence or absence as a control signal that regulates the closed direction urging force. The closed position side urging force control means continuously monitors the magnet key's state and adjusts the closed direction urging force accordingly. When the magnet key is inserted, the control means suppresses the closed direction urging force to enable smooth opening; when removed, it activates the force to enable automatic closing. This feedback mechanism ensures both automatic operation and ease of manual opening.
Solution Approach 2:
The patent implements preliminary action by suppressing the closed direction urging force in advance before the user needs to open the shutter plate. When the magnet key is inserted, the closed position side urging force control means proactively reduces the closed direction urging force, preparing the system for smooth opening operation. This preliminary suppression of the opposing force eliminates resistance during manual opening while maintaining automatic closing capability when the key is removed.
3Ease of operation
If the shutter plate moves automatically between closed and open positions, then ease of operation is enhanced, but control over when the shutter plate moves becomes difficult
Solution Approach 1:
The patent uses feedback control where the magnet key's insertion and removal actions serve as control signals that regulate the shutter plate's movement. The closed position side urging force control means receives feedback from the magnet key's state and adjusts the closed direction urging force accordingly. This feedback mechanism ensures the shutter plate moves automatically only when intended (when the magnet key is removed), maintaining both ease of operation and reliable control.
Solution Approach 2:
The patent implements self-service by enabling the shutter plate to automatically move between closed and open positions based on the magnet key's state without requiring manual intervention. When the magnet key is inserted, the system self-regulates by suppressing the closed direction urging force, allowing smooth opening. When the magnet key is removed, the system self-activates automatic closing through the closed direction urging force. This self-service mechanism enhances ease of operation while maintaining control through the magnet key's simple insertion and removal actions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables automatic and easy operation of the shutter plate between closed and open positions, enhancing user experience by allowing automatic movement with the magnet key's simple operation.
Implementation Method 1
the restricted state release means comprises a magnet lock that is unlocked by a magnet key
Data Source
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AI summary
A cylinder lock protection device is provided in which a shutter plate is housed in a casing having a mechanical key insertion hole, the shutter plate being capable of opening and closing the mechanical key insertion hole, wherein when restricted state release means (65) releases the restricted state due to closed position restriction means (56), the shutter plate (36) is automatically operated from the closed position to the open position by urging force applied from open direction urging means. In a state in which the shutter plate (36) is at the open position, when the mechanical key inserted into the cylinder lock side from the mechanical key insertion hole is pulled out of the mechanical key insertion hole at a predetermined pivoting position, closed position side urging force control means (94) allows closed direction urging means, which exhibits urging force that is larger than that of open direction urging means, to make the urging force act on the shutter plate (36), the urging force from the closed direction urging means thereby acts on the shutter plate (36) and the shutter plate (36) automatically operates to the closed position. Thus, the shutter plate automatically moves between the closed position and the open position, thereby enhancing the ease of operation.