Security Door Translucent Panel Fastening System
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Solution Overview
Problem
Conventional security doors with translucent glass panes face issues with heat and sound insulation due to strong, heat-conducting and sound-conducting fastening fittings, and require laborious assembly with numerous parts, increasing costs.
Innovation Solution
A security door design featuring a third sheet material with L-shaped flanges and bent tongues that securely fasten the translucent glass part between two main sheet materials, reducing the need for multiple assembly components and enhancing insulation and mechanical strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If strong metal fittings and joints are used to fasten the translucent part to withstand break-ins, then security and mechanical strength are improved, but heat and sound insulation deteriorate due to heat-conducting and sound-conducting bridges between the main plates
Solution Approach 1:
The patent introduces an intermediary fastening system consisting of a first fastening element on the outer main plate and a second fastening element on the inner main plate, connected by a fastening connection. This intermediary structure replaces direct metal-to-glass contact, reducing thermal and acoustic conduction paths while maintaining security fastening function.
Solution Approach 2:
The patent replaces traditional metal fittings and joints with a fastening system that uses a combination of fastening elements and connections designed to minimize mechanical contact between the translucent part and the main plates, thereby reducing heat and sound conduction while maintaining adequate mechanical strength for security applications.
2Reliability
If large-sized fastenings and numerous parts are used to secure the translucent part, then reliability and security are improved, but device complexity and assembly time increase, negatively impacting total cost
Solution Approach 1:
The patent merges the fastening function into a integrated system where the first and second fastening elements work together with the fastening connection as a unified assembly. This reduces the number of separate components compared to traditional multi-part metal fitting systems while maintaining equivalent or superior security reliability.
Solution Approach 2:
The fastening elements are designed to perform multiple functions: securing the translucent part, providing security resistance, and minimizing thermal/acoustic conduction. This multi-functionality reduces the need for separate specialized components, simplifying the overall device while maintaining reliability.
Data Source
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AI summary
The present invention relates to a security door. The door comprises a first (3) and a second (4) sheet material. The sheet materials are arranged parallel to each other and at a distance apart, thus defining a door leaf with an inner space. A translucent part (7) is arranged between the first and the second sheet material. The translucent part covers a see-through opening (8, 9) arranged in the respective sheet material. A third sheet material (10) is arranged in the inner space and the translucent part is fastened in the door with the aid of the third sheet material.