Window and Door Sash Corner Support With Screw-Channel Fixing
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Solution Overview
Problem
Existing sash corner brackets provide inadequate support and are complex to install, leading to issues with dimensional accuracy and load transfer in window or door frames.
Innovation Solution
A sash design with corner supports having angled legs and screw channels allows for easy assembly and improved support, utilizing screw channels for precise alignment and load transfer without additional machining, and incorporating angled screwing for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If corner brackets are used to support the sash, then the sash can be supported, but the support is inadequate and installation is complex
Solution Approach 1:
The corner support is divided into two separate legs that can be independently positioned and fixed to the main profiles. This segmentation allows for simpler installation compared to a single complex bracket, while maintaining support functionality through the distributed structure of the two legs
Solution Approach 2:
Screw channels are pre-formed in the main profiles during extrusion, eliminating the need for subsequent machining operations. This preliminary action simplifies the overall installation process by preparing the profiles in advance for easy attachment of corner supports and other components
2Manufacturing precision
If support brackets are inserted into sashes, then dimensional accuracy can be maintained, but the installation becomes complex
Solution Approach 1:
The screw channels are formed during the profile extrusion process itself, preparing the profiles in advance for precise component attachment. This eliminates complex post-processing and installation steps while maintaining the ability to achieve accurate positioning
Solution Approach 2:
The screw channels serve multiple functions: they provide alignment guidance for components, enable precise positioning, and facilitate straightforward attachment. This multi-functionality reduces the need for separate alignment and positioning mechanisms, simplifying installation while maintaining precision
3Ease of manufacture
If screws are screwed into main profiles, then components can be easily attached, but additional machining may be required
Solution Approach 1:
Screw channels are pre-formed in the main profiles during the extrusion process, eliminating the need for subsequent drilling or machining operations. This preliminary preparation enables easy component attachment while avoiding additional complex manufacturing steps
Data Source
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AI summary
A sash (3) that is movable relative to a frame of a window or door is described, the sash frame comprising sash frame profiles (31, 32) connected to each other at corners (33) and a surface element attached to the sash frame, wherein each sash frame profile (31, 32) has a main profile (4) and an insulating profile (5) attached to or formed thereon, wherein a corner support (7) is arranged in one or more, in particular all, of the corners (33) of the sash frame, the corner support having two legs (71, 72) extending at an angle, in particular at right angles, to each other, which are connected to each other in a corner region (75) and of which one or both legs (71,72) has/have a fastening section (74) for fixing to each of the respective main profiles (4) abutting each other at the corners, and wherein at least one groove-shaped first screw channel (43) extending over the length of the respective sash frame profile (31, 32) is formed on each of the main profiles (4), and wherein the corner supports (7) are fixed to the abutting main profiles (4) by means of first screws (8) screwed into the first screw channels (43). Furthermore, a method for fixing two main profiles abutting each other in the area of a miter joint is described.