Wooden Window Frame Corner Assembly Using Segmented Metal Fasteners
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Solution Overview
Problem
Traditional wooden casement window frame assembly methods, such as groove tenon joining, are complex, costly, and prone to inaccuracies, leading to weak corner assemblies and potential water seepage issues due to the use of nylon dovetail tenons, which compromise sealing and strength.
Innovation Solution
A frame assembly structure for wooden doors and windows using a corner assembler with half corner assemblers and an I-shaped fastening piece, allowing for precise connection and sealing of adjacent profile frame strips with cross sections of 0° to 180°, ensuring strong and tight corner assemblies through a simplified process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If groove tenon joining is used for frame assembly, then the corner assembly strength can be maintained, but the overall process becomes complicated and requires high fitting precision
Solution Approach 1:
The corner assembler is divided into two separate half corner assemblers that are installed on adjacent profile frame strips respectively. This segmentation simplifies the manufacturing process by allowing independent production of each half corner assembler, while the I-shaped fastening piece connects them to form the complete corner assembly, maintaining strength without requiring complex groove tenon joining processes
Solution Approach 2:
The I-shaped fastening piece serves as an intermediary component that connects the two half corner assemblers. This mediator element simplifies the overall assembly process by providing a straightforward connection mechanism that does not require high fitting precision like traditional groove tenon joining, while still achieving strong corner assembly
2Ease of manufacture
If nylon dovetail tenon is used for corner assembly, then the assembly process is simplified, but the overall strength and sealing property deteriorate
Solution Approach 1:
The corner assembler uses a composite structure combining metal materials (half corner assemblers and I-shaped fastening piece) instead of nylon. This composite metal construction maintains ease of manufacture through standardized components while significantly improving corner assembly strength and sealing properties compared to nylon dovetail tenons
3Device complexity
If traditional corner assembly methods are used, then the structure is simple, but water seepage and mildewing occur due to non-tight sealing
Solution Approach 1:
The corner assembler design incorporates localized sealing features at the connection points between half corner assemblers and profile frame strips. The I-shaped fastening piece creates tight local connections that prevent water infiltration, while the overall structure remains simple. This local quality improvement ensures reliable sealing without complicating the entire assembly structure
Data Source
AI summary
Disclosed are a frame assembly structure of a wooden doors and windows and a corner assembly method. The window includes, at least, a window frame or a casement window frame mainly formed by joining adjacent profile frame strips via a corner assembler on adjacent connecting end surfaces. The connecting end surfaces of two adjacent profile frame strips are respectively configured to be cross sections of 0° to 180°. A positioning notch of the corner assembler is at least provided on the cross sections. Two half corner assemblers of the corner assemblers are respectively embedded and fixed into the positioning notches on the adjacent cross sections. The two half corner assemblers are connected by an intermediate fastening piece and a fastening bolt to form a complete corner assembler, and the two adjacent profile frame strips are connected tightly and fixedly. The frame assembly structure is easy to assemble.