Aluminum Facing Shell on Plastic Window Frame
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Solution Overview
Problem
Existing window and door frame designs fail to provide a modern, low-maintenance, and thermally efficient solution that allows for increased light entry while maintaining effective water drainage and moisture protection.
Innovation Solution
A window or door frame constructed from plastic hollow profiles with aluminum facing shells that can be designed to appear 'frameless' and feature a connection element for the window sill, allowing for adjustable coverage and improved thermal insulation, along with elastic recesses or extensions for secure, non-positive connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If facing shells are precisely adapted to selected frame profiles with form-fitting connections, then connection stability is improved, but adaptability to different frame profiles deteriorates
Solution Approach 1:
The facing shell is designed with a universal connection system that can accommodate multiple frame profile types. The shell includes a recessed connection area with elastic elements that can adapt to different profile geometries, allowing the same facing shell design to be used across various frame types without compromising connection stability.
Solution Approach 2:
The connection system incorporates elastic elements with adjustable parameters such as flexibility and clamping force. By varying the elastic properties of the connection elements, the facing shell can maintain stable connection across different frame profiles while adapting to their specific geometric requirements.
2Shape
If the facing shell extends over the entire frame, then design completeness is improved, but thermal insulation performance deteriorates
Solution Approach 1:
The facing shell is designed with varying coverage along its length, providing full coverage at certain areas for aesthetic completeness while leaving other areas open to allow building insulation to extend over the frame. This localized variation in coverage optimizes both design appearance and thermal insulation performance.
3Reliability
If extensions protrude into elastic recesses for secure connection, then connection reliability is improved, but manufacturing complexity deteriorates
Solution Approach 1:
The connection system utilizes elastic recesses made from flexible materials that can deform to accommodate the extensions during assembly. This flexibility allows the recesses to automatically adapt to the extensions, ensuring reliable connection while simplifying the manufacturing process through the use of elastomeric materials that can be molded in various configurations.
Data Source
Figure 1
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AI summary
The facing shell (4,5) is provided with an extension (6) in such a manner that force-fit connection is provided between the facing shell and a window- or door frame (1,2). The extension is provided at a distance from an edge of the facing shell. The facing shell is made of aluminum. The window- or door frame is made of plastic hollow profiles. The extension is clamped in an elastic recess of the window- or door frame. The facing shell is extended over a part of the window- or door frame.