Tolerance-Adjustable Angle Element for Prefabricated Window Installation
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Solution Overview
Problem
Conventional fastening systems for prefabricated windows and wall elements in stud walls face challenges with dimensional tolerance deviations, leading to installation issues and waste, as they require exact standard dimensions, limiting flexibility in design and adaptation to non-standard wall thicknesses.
Innovation Solution
A tolerance-adjustable angle element system that compensates for deviations in stud wall thickness by allowing adjustable attachment of the window frame to the stud wall and window frame, using L-profile angle elements with obliquely positioned holes for stepless adjustment, and adhesive connections for glass panes and mineral product frames, enabling flexible installation regardless of standard dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional fastening systems are used for prefabricated windows in stud walls, then exact standard dimensions are required for proper installation, but dimensional tolerance deviations occur in practice leading to installation problems and waste
Solution Approach 1:
The fastening system incorporates adjustable angle elements with elongated holes that allow dynamic adjustment of the window frame position relative to the stud wall. The angle elements can be positioned at different locations along the elongated holes to compensate for wall thickness variations, transforming a static fastening system into a dynamic one that adapts to dimensional deviations.
Solution Approach 2:
The system changes the positional parameters of the angle elements by allowing adjustment along elongated holes. This parameter change enables the fastening system to accommodate different wall thicknesses (e.g., 100mm, 125mm) and tolerance deviations without requiring custom-made window frames, thus resolving the contradiction between manufacturing precision and adaptability.
2Reliability
If custom-made finished windows are produced to fit non-standard wall dimensions, then proper installation is achieved, but high costs and great amount of time are involved
Solution Approach 1:
The angle elements are pre-designed with elongated holes that accommodate a range of wall thicknesses during the preliminary design phase. This preliminary action eliminates the need for time-consuming custom measurements and production, as the adjustable fastening system can be directly applied to standard window frames installed in walls with varying thicknesses.
Solution Approach 2:
The adjustable angle elements serve multiple functions: they provide structural support, enable tolerance compensation, and allow adaptation to different wall thicknesses. This multi-functionality replaces the need for custom-made windows, reducing both time and cost while ensuring reliable installation.
3Adaptability or versatility
If aluminum window frames are used, then modern aesthetic and functional requirements are met, but subsequent processing and adjustment become impossible or significantly more difficult
Solution Approach 1:
The fastening system segments the adjustment function from the window frame itself. Instead of requiring the aluminum frame to be adjustable (which would be difficult), the system uses separate adjustable angle elements that attach to the frame. This segmentation allows the aluminum frame to remain structurally sound while the angle elements provide the necessary adjustability.
Solution Approach 2:
The adjustable angle elements act as intermediaries between the aluminum window frame and the stud wall. These intermediaries absorb the adjustment and adaptation functions, protecting the aluminum frame from direct processing difficulties while still enabling flexible installation and tolerance compensation.
Data Source
Figure 1
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Figure 7
AI summary
The mounting system has a tolerance adjustable angular element (6) for placing the finished window (3) on the stud wall (1). The stud wall is made of stud profiles (2) and gypsum plaster boards (18) arranged at one or both sides of the stud profiles. The stud profile and the gypsum plaster boards limit the finished window or prefabricated wall element, which has a window frame (4) and two glass plates (5) mounted on the window frame. The window frame is formed from a mineral product, particularly from gypsum fiber or from aluminum, steel, wood or timber materials.