Glass Rebate Insert Structure for Precise Glazing Block Positioning
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Solution Overview
Problem
Existing glass rebate inserts are not designed to fit every window frame profile with varying glass rebate grooves, particularly those with confined spaces, leading to issues with glazing block positioning and overhang, especially in special sash rebate shapes with rebate steps and extended bases.
Innovation Solution
A glass rebate insert with fastening elements that engage in undercut areas of rebate steps, allowing for secure positioning of glazing blocks without projecting above the support plate, and retaining arms that guide the blocks into position, ensuring a defined distance from the inner wall and facilitating easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional glass rebate inserts are used, then they can provide basic support for glazing blocks, but they cannot ensure precise positioning and stable placement in confined spaces with non-standard profiles
Solution Approach 1:
The glass rebate insert is divided into multiple functional elements: a support plate for positioning, retaining arms for lateral confinement, and fastening elements for securing to the rebate groove. This segmentation allows each element to perform its specific function independently, achieving precise positioning while adapting to different profile geometries.
Solution Approach 2:
Different parts of the glass rebate insert have different properties optimized for their specific functions: the support plate provides a flat bearing surface, the retaining arms provide lateral constraint, and the fastening elements provide attachment to the rebate groove. This local differentiation enables precise positioning while accommodating various window frame profiles.
2Ease of operation
If the glass rebate insert design is simplified for easy installation, then installation becomes easier, but positioning precision and stability in confined spaces deteriorates
Solution Approach 1:
The glass rebate insert is designed to be self-positioning through its geometric features: the support plate automatically provides a flat bearing surface, the retaining arms automatically constrain the glazing block laterally, and the fastening elements automatically engage with the rebate groove. This self-service design achieves precise positioning without complex installation procedures.
3Manufacturing precision
If retaining arms project above the support plate surface to grip glazing blocks, then lateral positioning improves, but the insert cannot be properly inserted into rebate grooves with limited depth
Solution Approach 1:
The retaining arms are designed with elastic flexibility, allowing them to deform during insertion into the rebate groove and then recover to provide lateral gripping force on the glazing block. This dynamic behavior enables the retaining arms to function effectively without requiring excessive insertion depth.
Solution Approach 2:
The retaining arms change their physical state from a compressed/deformed state during insertion to a recovered/active state after insertion. This parameter change allows them to provide lateral positioning force without projecting above the support plate surface, solving the conflict between positioning and insertion depth.
4Reliability
If fastening elements are designed to engage in undercut areas of rebate steps, then secure positioning is achieved, but the device complexity increases
Solution Approach 1:
The fastening elements act as intermediaries between the glass rebate insert and the rebate groove structure. They transfer and distribute mechanical loads, securing the insert in the undercut areas of rebate steps while maintaining simplicity through their straightforward engagement geometry.
Data Source
Figure 1
Figure 1a
Figure 2
AI summary
The invention relates to a glass rebate insert (30) with a support plate comprising an inner (B2) and an opposing outer mounting edge (B1), with whose mounting elements (35, 36) the receiving plate can be fastened in the glass rebate (11) of a window frame profile (10), in particular by clamping or snapping, and which has a retaining arm (33) on each of the opposing side edges connecting the mounting edges (B1, B2), which extends with its free end towards the outer mounting edge (B1) and at least partially rises above the surface (37) of the support plate, onto which a glazing block (40) can be placed between the retaining arms (33), wherein the mounting elements (35) arranged on the outer mounting edge (B1) are arranged at or below the level of the surface (37) of the support plate, in particular within the thickness of the support plate.The invention also relates to a system comprising at least one window frame profile (10) and at least one glass rebate insert (30), as well as a method for glazing a window frame.