Composite Door Frames Using Aluminum and Wood Profiles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing door and window frames made entirely of wood are limited in size and weight, unable to accommodate large dimensions or heavy structures, and suffer from warping and instability issues.
Innovation Solution
A composite frame constructed using aluminum as the composite matrix and wood as the disperse phase, bonded with a polyurethane-based adhesive and reinforced with mechanical fittings and screws, allowing for larger dimensions and increased durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If frames are made entirely of wood, then thermal and acoustic insulation properties are improved, but mechanical strength and ability to support large dimensions deteriorate
Solution Approach 1:
The patent applies composite materials by combining wood and aluminum in a hybrid frame structure. The wood provides thermal and acoustic insulation properties, while the aluminum profile embedded within the wood provides mechanical strength and structural support, enabling the frame to achieve both insulation performance and the capacity to support large dimensions without warping or failure.
2Loss of energy
If frames are made entirely of wood, then acoustic insulation properties are improved, but mechanical stability and resistance to warping deteriorate
Solution Approach 1:
The composite structure integrates aluminum reinforcement within the wood matrix, creating a hybrid material system that combines the acoustic insulation benefits of wood with the dimensional stability and warping resistance of aluminum. The aluminum profile acts as an internal skeleton that prevents the wood from warping while maintaining acoustic insulation performance.
3Adaptability or versatility
If frame dimensions are increased beyond traditional wood frame limits, then architectural versatility is improved, but structural integrity and resistance to deformation deteriorate
Solution Approach 1:
The patent enables large frame dimensions by using composite materials where aluminum profiles are embedded within wood. The aluminum provides the necessary structural integrity and resistance to deformation for large spans, while the wood maintains aesthetic qualities and insulation properties, allowing architects to design larger openings without compromising structural strength.
4Strength
If aluminum is used as the primary material, then mechanical strength and corrosion resistance are improved, but thermal and acoustic insulation properties deteriorate
Solution Approach 1:
The composite frame structure reverses the traditional approach by using wood as the primary visible material and embedding aluminum profiles within the wood. This configuration allows the wood to provide thermal and acoustic insulation as the outer layer, while the aluminum profile internally provides mechanical strength and corrosion resistance, achieving a balance of all required properties.
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 composite frame achieves excellent mechanical properties, corrosion resistance, and thermal and acoustic insulation, enabling the manufacture of large-sized frames exceeding current state-of-the-art limitations, while stabilizing warping issues.
Implementation Method 1
the polyurethane based adhesive is a good promoter of aluminum and wood bonding
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention consists of a composite frames for the manufacture of doors and/or windows, which is applied in a door and/or window opening of a building and consists of at least one fixed rim (1), at least one fixed and/or movable leaf (2), and elements such as skirting boards consisting of two profiles joined together: a metal profile (5a), preferably of aluminum, covered with a second wood profile (5b), wherein these two profiles are joined by means of a glue, preferably made of polyurethane.