Magnetic Gate Latch With Keyed Security Lock
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Solution Overview
Problem
Existing latching assemblies for safety enclosures, such as pool fences, lack features that provide visual confirmation of the locked state and are not designed to prevent unauthorized opening without a key, posing a risk for unsupervised access by young children.
Innovation Solution
A latching assembly with a lock mechanism that includes a lock status indicator providing visual confirmation of the locked state and a key-operated lock to prevent unauthorized opening, combined with a magnetic latch mechanism to ensure automatic closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a magnetic latching device is used for automatic latching, then the gate can automatically latch when closed, but the latch can be manually released without a key, reducing security
Solution Approach 1:
The latching assembly is divided into separate functional components: a magnetic latch mechanism for automatic latching and a separate locking assembly for security control. The locking assembly includes a lock member that can be independently positioned to either allow or prevent manual release of the magnetic latch, providing both automatic operation and secure locking functions through segmented design
Solution Approach 2:
A lock member acts as an intermediary between the magnetic latch and the user. When the lock member is in the locked position, it physically prevents manual release of the latch even though the magnetic latch remains functional for automatic operation. The key-operated mechanism controls the lock member's position, mediating between automatic latching and secure locking requirements
2Reliability
If a locking assembly is added to prevent manual release, then security is improved, but the device complexity increases
Solution Approach 1:
The locking assembly is merged with the existing magnetic latch structure rather than being a completely separate system. The lock member integrates with the latch mechanism, sharing common components such as the housing and mounting structure. This merging approach provides enhanced security while minimizing the increase in overall device complexity
Solution Approach 2:
The lock member serves multiple functions: it prevents manual release of the latch when in the locked position, allows controlled release when unlocked, and can be operated by a key. This multi-functionality reduces the need for additional separate mechanisms, thereby limiting the increase in device complexity while achieving enhanced security
3Reliability
If the latch members are made robust to prevent forced opening, then security is improved, but the ease of operation for legitimate users may be reduced
Solution Approach 1:
The locking assembly incorporates a dynamic lock member that can change its position between locked and unlocked states based on key operation. When unlocked, the lock member moves to a position that allows easy manual release of the latch. When locked, it restricts movement to prevent forced opening. This dynamic positioning enables the system to adapt its mechanical constraints based on the operational context, balancing security and ease of operation
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
Enhances safety by visually confirming the locked state and requiring a key for opening, thereby preventing unauthorized access, especially in environments like swimming pools and playgrounds.
Implementation Method 1
a magnetic latch mechanism to ensure automatic closure
Data Source
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AI summary
A latching assembly for a gate comprising: a latch operative to adopt a latched condition, the latch comprising one or more members coupled together, each latch member extending along a longitudinal axis; and a lock comprising a lock portion adjustable from a retracted to a projected configuration to bring the lock portion into engagement with the or at least one of the latch members in the projected configuration so as to lock the latch in its latched condition.