Magnetically Releasable Lock for Sign Security
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Solution Overview
Problem
Existing sign devices are prone to unauthorized removal due to lack of effective locking mechanisms, which can damage the signs with visible screws or allow unauthorized access.
Innovation Solution
A magnetically releasable lock system that automatically secures the sign-carrying part to the mounting part without visible fastening, using a magnetic locking plate and track mechanism that requires an external magnetic force to release the sign, ensuring secure attachment and easy removal only by authorized personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visible screws or fastening mechanisms are used to secure the sign, then the sign is locked in place, but the information-carrying part is disfigured and visible
Solution Approach 1:
The visible fastening elements (screws) are extracted and replaced with a magnetic locking system where the locking mechanism is hidden within the mounting part. The magnet is embedded in the mounting part, and the magnetic attraction force is transmitted through the sign-carrying part, eliminating the need for visible external fasteners while maintaining secure attachment.
Solution Approach 2:
A thin magnetic plate is introduced as an intermediate element between the mounting part and the sign-carrying part. This magnetic plate is attracted to the magnet in the mounting part, creating a secure connection while remaining thin and unobtrusive, thus preserving the aesthetic appearance of the sign assembly.
2Ease of operation
If simple attachment methods are used, then the sign can be easily installed, but unauthorized persons can easily remove the information-carrying part
Solution Approach 1:
A magnetic plate is introduced as an intermediary element between the mounting part and the sign-carrying part. This magnetic plate is attracted to the magnet in the mounting part, creating a secure connection that requires specific magnetic force to overcome. The intermediary magnetic plate distributes the magnetic force and creates a controlled release mechanism that prevents unauthorized removal while allowing legitimate installation and replacement.
Solution Approach 2:
The magnetic locking system utilizes changes in magnetic field strength to control the locking and unlocking states. During normal operation, the magnetic attraction force maintains secure attachment. When authorized release is required, an external magnetic device applies a stronger magnetic field that overcomes the locking force, allowing the sign-carrying part to be removed without mechanical intervention.
3Shape
If a magnetic locking mechanism is used, then the sign can be securely locked without visible fasteners, but an external magnetic device is required to remove the sign
Solution Approach 1:
The traditional mechanical fastening system (screws, clips, or latches) is replaced with a magnetic field-based locking mechanism. The magnet in the mounting part creates a magnetic field that attracts the magnetic plate, providing secure attachment without mechanical contact. The release mechanism also uses magnetic fields rather than mechanical keys or tools, simplifying the overall system while maintaining security and aesthetic appearance.
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 unauthorized removal of signs by using a magnetic locking mechanism that is not visible, ensuring the sign remains securely locked without external magnetic influence, providing a cost-effective and practical solution for securing signs and name plates.
Implementation Method 1
said locking plate being magnetic and in an a locking position when not being influenced by an external magnetic force from the front side of the sign that is greater than the magnetic force between the locking plate and a part of the front side of the mounting part
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
There is provided a system for securing a sign to a support surface. The system comprises a magnetically releasable lock adapted to automatically lock mutually displaceable surface portions together. The system ensures locking of the two mutually displaceable portions without the visible information-carrying part being disfigured. Unauthorized persons cannot remove the information-carrying part without having knowledge about the location of the magnetically releasable lock.