Magnetic Safety Gate Latch Using Helical Lift Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional gate latches are prone to being opened by small children and may not remain securely closed, posing a safety risk around swimming pools and other hazardous areas, especially when adults need to frequently enter and exit without carrying keys.
Innovation Solution
A magnetic safety gate latch system comprising a vertically-oriented pool latch tube, a lift mechanism, a shaft with helical thread, a magnet, and a ferromagnetic latch pin, which uses magnetic attraction to keep the gate locked and can be easily opened by adults by disrupting the magnetic field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional latch or doorknob is used to keep the gate closed, then the gate can be operated by adults, but it may be reached by small children or may not be closed securely
Solution Approach 1:
The patent replaces the conventional mechanical latch or doorknob system with a magnetic latching system. The magnetic latch uses magnetic attraction forces to hold the gate closed, eliminating the need for mechanical components that children can reach or manipulate. The magnetic field provides secure latching without mechanical parts that are accessible to children.
Solution Approach 2:
The patent changes the operational parameter from mechanical force application (hand-operated latch) to magnetic field interaction. The magnetic latch requires disruption of the magnetic field to open, which can be achieved by adults through specific actions while remaining inaccessible to children who cannot generate sufficient magnetic field disruption.
2Reliability
If a conventional latch is used, then the gate can be secured, but it may be prone to not being closed securely and requires keys for adults
Solution Approach 1:
The patent eliminates the key-based mechanical locking system by using magnetic field interaction. Adults can operate the gate by disrupting the magnetic field through lifting or tilting actions, removing the need for keys while maintaining secure closure through magnetic attraction.
3Reliability
If the latch is made child-resistant, then safety is improved, but the operation becomes more difficult for adults without keys
Solution Approach 1:
The patent changes the operational parameter from mechanical manipulation (turning knobs, moving latches) to magnetic field disruption. Adults can easily open the gate by lifting or tilting the gate, which disrupts the magnetic field, while children cannot generate sufficient force to disrupt the magnetic field.
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 effectively prevents small children from opening the gate while allowing adults to do so easily, providing enhanced safety around swimming pools and other hazardous areas without the need for keys.
Implementation Method 1
A magnetic safety gate latch system comprising a vertically-oriented pool latch tube, a lift mechanism, a shaft with helical thread, a magnet, and a ferromagnetic latch pin, which uses magnetic attraction to keep the gate locked
Implementation Method 2
a ferromagnetic latch pin, which uses magnetic attraction to keep the gate locked
Data Source
AI summary
Magnetic safety gate latch assembly including a first subassembly and a second subassembly. The first subassembly includes: a vertically-oriented pool latch tube; a lift mechanism coupled to the top end of the pool latch tube; a shaft vertically oriented within the pool latch tube, coupled to the lift mechanism, and having a lower end including a helical thread; a magnet and magnet housing, the magnet housing coupled to the helical threading of the shaft; and a bottom cover coupled to the lower end of the pool latch tube and enclosing the magnet housing, the bottom cover including an aperture on a vertical side facing a latch pin housing, the aperture positioned to expose the magnet. The second subassembly includes the latch pin housing; a ferromagnetic latch pin; and a magnetic latch pin guide coupled to the latch pin housing and slidably enclosing at least a portion of the latch pin.