Spring-Loaded Blade Door Stop with Magnetic Retention
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Solution Overview
Problem
Existing door security devices are often difficult to deploy, especially for individuals with mobility issues or small children, and may be ineffective or cost-prohibitive in preventing or slowing door opening, particularly in emergency situations.
Innovation Solution
A device comprising a base with a magnet attached to a door and a spring-loaded blade that pivots from a closed to a deployed configuration, allowing the blade to disengage from the magnet and extend downward to prevent door opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing door security devices are used, then door opening can be prevented or slowed, but deployment becomes difficult for small children or individuals with mobility issues
Solution Approach 1:
The patent replaces complex mechanical deployment mechanisms with a simple magnetic field-based system. The magnetic blade automatically engages with the magnet on the door when activated, eliminating the need for complex manual manipulation of levers, screws, or multi-step mechanical assemblies that would be difficult for children or individuals with mobility issues to operate.
Solution Approach 2:
The magnetic blade is designed to automatically engage and lock into position when activated, without requiring the user to manually position or adjust it. The magnetic attraction force automatically pulls the blade into its secure position, making the system self-adjusting and eliminating the need for precise manual alignment that would complicate deployment.
2Ease of operation
If simple deployment mechanisms are used, then ease of operation improves, but device effectiveness in preventing door opening may be reduced
Solution Approach 1:
The magnetic blade is pre-positioned and spring-loaded to automatically engage with the magnet on the door when activated. This preliminary positioning ensures that when the simple activation mechanism is triggered, the blade is already in the correct orientation and position to effectively prevent door opening, combining simplicity with effectiveness.
Solution Approach 2:
The blade is designed with a curved or angled configuration that allows it to effectively block the door while maintaining a compact form factor. The curved design enables the blade to engage at an optimal angle with the door frame or stop mechanism, maximizing its preventive capability while keeping the overall device simple and easy to deploy.
3Reliability
If complex installation procedures are used, then device effectiveness improves, but installation time and complexity increase
Solution Approach 1:
The patent extracts the complex installation requirements by designing a system that can be mounted using simple adhesive strips or basic fasteners. The magnetic blade and magnet assembly is designed as a self-contained unit that can be independently attached to the door without requiring complex structural modifications, professional installation, or specialized tools, thereby reducing installation time while maintaining effectiveness.
4Reliability
If robust mechanical locking mechanisms are used, then door security improves, but cost increases
Solution Approach 1:
The patent employs inexpensive magnetic components and a simple blade structure that can be manufactured at low cost using common materials and processes. The magnetic blade and magnet assembly uses readily available components such as refrigerator magnets, spring-loaded mechanisms, and basic structural materials, eliminating the need for expensive specialized locking mechanisms while providing sufficient security effectiveness.
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 device can be easily and quickly deployed by individuals of various abilities to effectively prevent or slow door opening, providing enhanced security in emergency situations without requiring complex installation or maintenance.
Implementation Method 1
a magnet mounted thereto; and a spring loaded blade hingeably attached to a bottom portion of the base... the blade is configured to pivot from a first closed orientation to a second deployed configuration. When the blade is in the first closed orientation the blade is engaged with the magnet on the base
Data Source
AI summary
A device for slowing or stopping a door from opening or moving may include a base designed to be attached to the door, the base including a magnet mounted thereto; and a spring loaded blade hingeably attached to a bottom portion of the base, the spring loaded blade having a proximal flat end and a distal pointed end, wherein the blade is configured to pivot from a first closed orientation to a second deployed configuration. When the blade is in the first closed orientation the blade is engaged with the magnet on the base, and when the blade is in the second deployed configuration, the blade is disengaged from the magnet and the distal pointed end is pointing at an angle downward from the base.