Magnetically Coded Sash Lock for High-Torque Operation
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Solution Overview
Problem
Existing sash locks offer low security against unauthorized operation and are not robust enough to transmit high torques due to their design, while conventional cylinder locks are sensitive to environmental conditions and require additional handles for high torque applications.
Innovation Solution
A lock system with a lock core designed for torque-transmitting attachment of a socket key, featuring blocking means that release rotation between open and closed positions via a predetermined magnet arrangement on the key, ensuring high torque transmission and enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a simple sash lock with a lock contour is used for torque-transmitting attachment, then high torques can be transmitted, but security against unauthorized operation is low
Solution Approach 1:
The patent merges the simple sash lock design with a magnetic coding system. The lock core maintains its simple contour for high torque transmission, while blocking means with magnetic sensors detect the magnet arrangement on the key. This combination preserves the mechanical advantage of simple locks while adding the security of coded access control.
Solution Approach 2:
The patent replaces the traditional mechanical key-cutting system with a magnetic field-based coding system. Instead of complex mechanical key channels and blocking elements, the invention uses magnetic sensors to detect the magnet arrangement on the key, substituting mechanical complexity with a more robust magnetic detection mechanism that maintains both security and torque capability.
2Reliability
If a conventional cylinder lock is used to improve security, then security against unauthorized operation is high, but sensitivity to environmental conditions increases
Solution Approach 1:
The patent extracts the sensitive mechanical components of conventional cylinder locks (key channels, blocking plates, pins) and replaces them with a simplified lock core and magnetic detection system. The magnetic sensing mechanism is enclosed within the lock housing, protecting it from environmental factors while maintaining security functionality.
Solution Approach 2:
The patent changes the operational parameter from mechanical key profile recognition to magnetic field detection. This parameter change allows the lock to achieve high security through magnetic coding while the enclosed magnetic sensors remain protected from dust and dirt, unlike exposed mechanical components.
3Reliability
If a conventional cylinder lock is used, then security is improved, but device complexity increases requiring lock covers
Solution Approach 1:
The patent replaces the complex mechanical key channel system with a simple lock core contour and magnetic sensor arrangement. The key has a magnet arrangement that interacts with blocking means containing magnetic sensors, eliminating the need for complex key channels, blocking plates, or protective covers, thus reducing overall device complexity while maintaining security.
4Force
If a separate rotary handle is added to transmit high torques with a cylinder lock, then torque capability is improved, but operating complexity and installation space increase
Solution Approach 1:
The patent merges the torque transmission function and the unlocking function into a single integrated key-operated system. The key with magnet arrangement simultaneously unlocks the blocking means and transmits torque to rotate the lock core, eliminating the need for a separate rotary handle and reducing operating complexity while maintaining high torque capability.
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
The system provides a robust and compact lock that transmits high torques while offering basic security against unauthorized operation, with magnetic coding ensuring only compatible keys can unlock it, enhancing durability and resistance to environmental factors.
Implementation Method 1
blocking means, which, when the key is removed, block rotation of the lock core in the lock housing between an open position and a closed position. The blocking means are configured to release the rotation of the lock core in the lock housing between the open position and the closed position when a key, in particular a socket key, with a predetermined magnet arrangement is mounted on the first end of the lock core.
Data Source
AI summary
A lock, in particular sash lock, with a lock housing and with a lock core rotatably mounted in the lock housing. The lock core, at a first end accessible from a front side of the lock, is formed for torque-transmitting attachment of a key, in particular a socket key. The lock has blocking means, which, when the key is removed, block rotation of the lock core in the lock housing between an open position and a closed position, and wherein the blocking means are configured to release the rotation of the lock core in the lock housing between the open position and the closed position when a key, in particular a socket key, with a predetermined magnet arrangement is mounted on the first end of the lock core. The invention further relates to a key and a lock system.