Adjustable Hinge Assembly Security Mechanism
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Solution Overview
Problem
Existing adjustable hinge assemblies face security issues due to accessibility of screws and nuts from outside when in a closed position, allowing unauthorized disassembly, and are often complex and costly.
Innovation Solution
A secure and cost-effective adjustable hinge assembly with a coupling mechanism between the second hinge member and intermediary element, featuring a hinge pin with shoulders to prevent movement in the first direction, and screws oriented perpendicularly to secure the assembly, along with serrated contact surfaces for locking, ensuring the assembly remains inaccessible and secure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If screws and nuts are made accessible for adjustment, then ease of operation is improved, but security deteriorates as unauthorized persons can disassemble the hinge assembly
Solution Approach 1:
The hinge assembly transitions between two dynamic states: open position where screws are accessible for adjustment, and closed position where the coupling blocks access to screws. This dynamic positioning resolves the contradiction by making accessibility conditional on the operational state.
Solution Approach 2:
The coupling acts as an intermediary element between the first hinge member and the second hinge member. It mediates the contradiction by physically blocking access to the screws when in the closed position, while still allowing the hinge to function. The coupling is positioned such that it prevents unauthorized access to fastening elements.
2Reliability
If a secure locking mechanism is implemented, then security is improved, but device complexity increases
Solution Approach 1:
The hinge assembly is segmented into distinct functional components: first hinge member, intermediary element, hinge pin, second hinge member, and coupling. This segmentation allows the coupling to independently perform the security function of blocking screw access without complicating the overall structure. Each component has a specific role that contributes to security without requiring complex interlocking mechanisms.
Solution Approach 2:
The coupling's position automatically provides security based on the hinge's operational state. When the hinge is closed, the coupling naturally blocks access to screws without requiring additional locking mechanisms, sensors, or active components. The structure serves its own security function through its geometric arrangement.
3Adaptability or versatility
If curved cam surfaces are used for adjustment, then adaptability is improved, but manufacturing cost increases due to complexity
Solution Approach 1:
Instead of using complex curved cam surfaces for full multi-axis adjustment, the invention provides partial adjustment capability through simple geometric features. The coupling's position and the orifice orientation allow adjustment in specific directions without requiring sophisticated cam mechanisms, reducing manufacturing complexity while maintaining necessary adaptability.
Solution Approach 2:
The invention replaces expensive, complex curved cam surfaces with simpler, cheaper geometric features that provide sufficient adjustment capability. The coupling and orifice design offer a cost-effective alternative to precision cam mechanisms, achieving the required adaptability through simpler manufacturing processes.
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
The present invention relates to an adjustable hinge assembly comprising a first hinge member 6, a second hinge member 4, an intermediary element 5, and a hinge pin 1 substantially oriented in a first direction X and rotatably connecting said intermediary element 5 to said first hinge member 6. Said second hinge member 4 and said intermediary element 5 are joined by a coupling adjustable in a second direction Y substantially perpendicular to said first direction X. When the adjustable hinge assembly is in a closed position, said first hinge member 6 prevents access to said coupling. The present invention also relates to methods for assembling and disassembling such an adjustable hinge assembly.