Lock Slider Isolates Pins from Cylinder Torque
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Solution Overview
Problem
Current security locks are susceptible to tampering and unauthorized access due to their vulnerability to lock picking attacks, where torque applied to the lock core can manipulate pins, allowing unauthorized access.
Innovation Solution
A high security locking system with a slider that isolates pins from torque applied to the lock cylinder, providing two discrete states: one where the lock cylinder is locked and pins cannot be bound by torque, and another where the pins are free but cannot be manipulated, using a slider with interlocking features that engage with pins to resist movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If torque is applied to the lock cylinder to bind the pins, then the lock can be actuated, but the pins become vulnerable to manipulation by tools entering the keyway
Solution Approach 1:
The lock mechanism is divided into functionally independent segments: the lock cylinder that receives torque and the pins that remain isolated from torque. The slider component separates these functions, allowing the cylinder to rotate for actuation while the pins stay in a torque-free state, preventing the binding action that makes pins vulnerable to manipulation.
Solution Approach 2:
The slider acts as an intermediary component between the lock cylinder and the pins. It transmits the actuation signal from the cylinder to the pin system without transmitting torque, thereby mediating the interaction in a way that enables lock operation while protecting pins from torque-induced manipulation vulnerability.
2Object-affected harmful factors
If the lock cylinder is locked to prevent rotation, then pins are isolated from torque, but the lock cannot be actuated
Solution Approach 1:
The system dynamically transitions between two states: a locked state where the cylinder is prevented from rotating and pins are isolated from torque, and an actuated state where the slider moves to allow cylinder rotation while maintaining pin isolation. This dynamic state change enables both pin protection and operational capability.
Solution Approach 2:
The locking function and actuation function are segmented into separate mechanisms. The anti-rotation feature locks the cylinder to protect pins, while the slider mechanism provides a separate actuation path that can move the pins without requiring cylinder rotation, thus maintaining both protection and operability.
3Object-affected harmful factors
If a slider mechanism is added to isolate pins from torque, then pin manipulation is prevented, but device complexity increases
Solution Approach 1:
The slider component performs multiple functions simultaneously: it acts as a torque isolation barrier, a pin actuator, and a state transition mechanism. By consolidating these functions into a single component, the design adds minimal complexity while achieving comprehensive pin protection and operational capability.
Data Source
AI summary
A locking system uses a lock housing, a lock cylinder for rotation in the lock housing, pins to control the lock cylinder being in unlocked or locked states relative to the lock housing, and a key to control the position of the pins. The system further includes a slider or lock bar within the lock housing. The slider moves relative to the lock cylinder and the lock housing between (i) a cylinder locking position blocking rotation of the lock cylinder relative to the lock housing so as to isolate the pins from the torque applied to the lock cylinder while allowing the pins to be displaced between the locked and unlocked positions thereof and (ii) a pin locking position of the slider in which the pins are resisted from movement relative to the lock housing and the lock cylinder while rotation of the lock cylinder is uninhibited by the slider.