Window Frame Support Element with Adjustable Bracket for Wall Mounting
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Solution Overview
Problem
Existing fastening systems for window and door frames in multi-shell building envelopes, particularly with non-pressure-resistant materials or high-hole bricks, are insufficient, requiring excessive assembly effort and limited to attachment at the parapet.
Innovation Solution
A fastening system comprising a support element with parallel leading elements and a bracket with adjustable legs, allowing forces to be distributed from a profile rail to more suitable wall regions, reducing assembly effort and enabling attachment beyond the parapet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If profile rails with adjustment elements are used to fasten windows and doors, then adjustment precision and self-locking are improved, but manufacturing cost and installation effort increase
Solution Approach 1:
The mounting device is divided into separate functional components: a support element for positioning, a bracket for attachment, and a profile rail for adjustment. This segmentation allows each component to be optimized independently and simplifies installation by enabling modular assembly on site.
Solution Approach 2:
The support element features a self-centering design with guide elements that automatically align the profile rail during installation, eliminating the need for complex adjustment mechanisms and reducing installation effort while maintaining positioning precision.
2Strength
If fasteners are inserted directly into the parapet to anchor the profile rail, then anchoring strength is improved, but installation becomes impossible or very difficult with low compressive strength materials
Solution Approach 1:
The support element acts as an intermediary component between the parapet and the profile rail. It distributes loads over a larger area of the parapet surface, reducing point stresses and enabling installation in low compressive strength materials without requiring direct fastener insertion into the parapet.
Solution Approach 2:
The support element changes the stress distribution parameters by spreading point loads from fasteners into distributed area loads, transforming the loading conditions to be compatible with weak masonry materials and enabling successful anchoring where direct fastening would fail.
3Reliability
If additional support elements and brackets are added to divert forces, then load transfer reliability is improved, but device complexity increases
Solution Approach 1:
The support element and bracket are merged into a single integrated component that performs multiple functions: positioning the profile rail, distributing loads to the parapet, and providing attachment points for fasteners. This merging reduces the number of separate parts while maintaining load transfer reliability.
Solution Approach 2:
The integrated support element serves multiple functions simultaneously: it acts as a load-distributing base, a positioning guide for the profile rail, and a mounting bracket for fasteners. This multi-functionality achieves reliable load transfer without increasing device complexity through additional specialized components.
Data Source
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AI summary
A device for supporting a profile rail (30, 30') on the parapet of a wall opening comprises a support element (10) and a bracket (20). The support element (10) has parallel guide elements (15, 16) on its upper surface for arranging the profile rail (30, 30'). The bracket is designed as an L-shaped component with two legs (21, 22). The profile rail (30, 30') is designed as a rigid, longitudinally extended profile element with a U, C, I, double-T cross-section or as a hollow box and has a lower surface (38) designed such that the profile rail can be arranged to be longitudinally displaceable on the upper surface (11) of the support element (10) and engages positively in the guide elements (15, 16) of the support element (10).A mounting method comprises placing a support element (10) on the parapet of a wall opening, aligning the support element (10) such that the stop surface (18) rests flat against an edge of the wall opening (41), attaching the brackets (20) to the support element (10) and a surface of the wall such that the second leg (22) rests flat against the surface of the wall (40) and the first leg (21) rests on the support element (10). The brackets (20) are fixed to the support element (10) and to the surface of the wall by means of fasteners. The profile rail (30, 30') is placed on the support element as an element, aligned, and fastened.