Removable Window Frame Spacer for Consistent Rebate Gaps
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Solution Overview
Problem
Conventional profile systems face challenges in maintaining uniform rebate gaps and parallelism between sash and frame profiles during assembly and transport, leading to uneven fold sizes and potential sash jamming due to deviations in distance and angle.
Innovation Solution
A spacer with a first profile section acting as a stop block and a second profile section with a fastening means, such as a receiving groove, is clamped to the sash overlap and inserted into the gap between sash and opposite profiles, ensuring consistent rebate dimensions and stabilizing the system during assembly and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a stop block is attached to the outer frame to correct uneven distance between sash and frame, then the rebate dimension is restored, but the device complexity increases and the stop block remains permanently attached
Solution Approach 1:
The spacer is divided into two functional profile sections: a first profile section forming a stop block for correcting rebate dimension, and a second profile section with fastening means for temporary attachment. This segmentation allows each section to perform its specific function independently while being part of a unified spacer component.
Solution Approach 2:
The spacer is attached to the sash overlap before assembly or transport, preliminarily stabilizing the sash frame profile relative to opposite profiles. The fastening means (receiving groove) enables preliminary attachment that can be removed afterwards without tools, preventing warping during critical phases.
2Manufacturing precision
If a stop block is used to lift the sash profile to restore desired rebate dimension, then the parallelism is improved, but the ease of operation deteriorates due to permanent attachment
Solution Approach 1:
The spacer transitions from a static, permanently attached stop block to a dynamic component that can be temporarily attached and removed. The fastening means allows the spacer to be attached during assembly/transport and then removed afterwards without tools, providing operational flexibility while maintaining precision when needed.
Solution Approach 2:
The spacer serves its stabilizing function temporarily during assembly and transport, then is removed afterwards without tools. The receiving groove fastening means enables easy attachment and removal, allowing the spacer to be discarded after serving its purpose of maintaining parallelism and preventing warping.
3Stability of the object's composition
If the spacer is permanently attached to maintain rebate gap, then the stability is improved, but the adaptability deteriorates for different profile combinations
Solution Approach 1:
The spacer with receiving groove fastening means serves multiple functions: it stabilizes the sash frame during assembly and transport, maintains rebate gap dimensions, and can be applied to various profile combinations. The temporary attachment capability allows universal application across different window and door systems without permanent modification.
4Manufacturing precision
If the spacer stabilizes the system during assembly and transport, then the manufacturing precision is improved, but the device complexity increases due to fastening means
Solution Approach 1:
The stop block function and fastening means are merged into a single integrated spacer component with two profile sections. The first profile section forms the stop block for dimensional correction, while the second profile section provides fastening capability, combining stabilization and attachment functions in one piece.
Data Source
Figure 1
Figure 1a~1b
Figure 2
AI summary
The invention relates to a spacer (30) for ensuring a required distance between a sash frame profile (10) and an opposing profile (20, 40), in particular an opposing frame (20), sash frame profile (10) or threshold profile (40), preferably during transport or assembly, with a profile section forming a ramp with a ramp, which can be positioned in the rebate gap between a rebate surface of a sash frame profile (10) and an opposing profile (10, 20, 40), which has a first profile section (I) comprising the ramp and a second profile section (II) comprising a receiving groove with which the second profile section (II) can be attached to the sash overlap (11) of a sash frame profile (10), wherein the first and second profile sections (I, II) are connected to each other forming a step.The invention also relates to a method for at least temporarily stabilizing a sash frame profile (10), preferably during transport or assembly, against an opposing profile (10, 20, 40), in particular an opposing frame profile (20), sash frame profile (10) or threshold profile (40), in which a spacer (30) with a profile section (II) comprising a receiving groove is clamped to the sash overlap (11) of the sash frame profile (10) and, in the attached state, is inserted into the gap area between the sash frame rebate surface and the opposing profile (10, 20, 40) with a profile section (I) forming a guide block.