Window Frame Fixing Device with Angle Part and Flat Supports
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Solution Overview
Problem
Existing devices for fixing structures in building openings, such as window frames, are costly due to complex assembly requirements and the need for threaded rods, which also lead to potential thermal bridges and insulation material damage.
Innovation Solution
A device using flat support elements and an angle part with multiple openings for fastening screws, allowing for adjustable alignment without threaded rods, ensuring secure attachment and avoiding thermal bridges by keeping fasteners inside the building, with the support element running between the window frame and insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If threaded rods and complex multi-part support devices are used for fixing structures, then secure attachment is achieved, but assembly cost increases and thermal bridges are created
Solution Approach 1:
The support device is divided into separate functional elements: flat support elements for positioning and an angle part for fastening. This segmentation allows each component to perform its specific function efficiently, reducing overall complexity while maintaining secure attachment through distributed fastening points across multiple openings in the angle part
Solution Approach 2:
The fastening function is extracted from the support elements and concentrated in the angle part. The flat support elements only provide positioning and support, while all fastening operations are performed through the angle part's openings, simplifying the overall assembly process and reducing the complexity of integrating support and fastening functions
2Manufacturing precision
If threaded rods are used for depth and height adjustment, then precise positioning is achieved, but assembly cost and complexity increase
Solution Approach 1:
The system transitions from rigid threaded rod adjustment to a dynamic configuration where flat support elements of varying thicknesses are selected and combined to achieve the desired positioning. This allows precise depth and height adjustment through simple stacking and arrangement of flat elements rather than complex threaded mechanisms
Solution Approach 2:
Instead of using adjustable threaded rods, the system changes the parameter of support element thickness to achieve positioning. Different thicknesses of flat support elements are selected based on the required depth and height, converting an adjustment problem into a selection and combination problem that is simpler to manufacture and assemble
3Strength
If fastening screws are attached below the window frame, then secure fastening is achieved, but thermal bridges are created and insulation material must be cut
Solution Approach 1:
The fastening operation is extracted from the area below the window frame and relocated to the angle part that attaches to the side wall. All fastening screws are inserted through openings in the angle part, eliminating the need to attach fasteners below the window frame and thus preventing thermal bridges and insulation damage
Solution Approach 2:
The angle part serves as an intermediary structure that provides fastening functionality without requiring direct attachment below the window frame. The angle part with its multiple openings enables secure fastening to the side wall while maintaining the insulation integrity beneath the window frame
Data Source
Figure 1~2
AI summary
The invention relates to a device for fixing a building element, in particular a window frame, in a building opening with a support element having a number of openings for supporting the building element, wherein the support element can be fixed to an edge of the building opening by means of fastening means, wherein the building element can be connected to the support element in a mounting position by means of an angle part, wherein a first leg of the angle part has a plurality of openings for fixing to the building element and a second leg of the angle part has a plurality of openings for fixing to the support element.