Adjustable Frame Fixing Device for Wall Openings
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Solution Overview
Problem
Existing methods for assembling and fastening window or door frames to wall openings in thermally insulated buildings are complex and lack security, particularly in multi-layered constructions where frames need to be adjusted both parallel and perpendicular to the load-bearing walls to avoid condensation and thermal bridges.
Innovation Solution
An adjustable device comprising a profile rail with connection points for a threaded bolt and support element, allowing for clamping of the frame between a cap nut and support element, providing secure and adjustable fastening without the need for height adjustments with blocks or wedges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an adjustable bracket with profile rail and threaded bolt is used to fix frames in multi-layered wall constructions, then the frame can be positioned correctly to avoid condensation and thermal bridges, but the assembly process becomes complex and lacks security
Solution Approach 1:
The patent combines the threaded bolt and cap nut into a single integrated fastening unit that works together with the support element to create a secure clamp connection. This merging of components simplifies the overall assembly process while maintaining reliable fastening security for frames in multi-layered wall constructions.
Solution Approach 2:
The adjustable bracket system with profile rail, threaded bolt, support element, and cap nut serves multiple functions: positioning the frame parallel to the load-bearing wall, adjusting the frame position, and providing secure fastening. This multi-functionality reduces the need for separate components and simplifies the overall assembly process.
2Manufacturing precision
If multiple adjustment elements and support structures are provided to allow frame adjustment parallel and perpendicular to the wall plane, then positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent employs adjustable support elements and threaded bolts that can be dynamically positioned and adjusted during assembly. The support element can be positioned at different locations on the profile rail, and the threaded bolt with cap nut allows for dynamic adjustment of the frame position both parallel and perpendicular to the wall plane, achieving precise positioning without overly complex fixed structures.
Solution Approach 2:
The bracket system is segmented into distinct functional components: the profile rail for positioning, the threaded bolt for adjustment, the support element for structural support, and the cap nut for securing. This segmentation allows each component to be optimized for its specific function while working together to achieve precise frame positioning.
3Reliability
If a secure clamping connection is created between the frame and support element using a cap nut, then fastening reliability is improved, but the number of components and assembly steps increases
Solution Approach 1:
The support element is pre-positioned on the profile rail before the frame is installed. This preliminary action allows the frame to be quickly positioned and clamped without requiring complex alignment procedures during assembly, thereby improving assembly speed while maintaining fastening security.
Solution Approach 2:
The threaded bolt and cap nut system is designed to be self-aligning and self-securing. The cap nut threads onto the bolt and automatically creates the clamping force needed to secure the frame, reducing the need for additional adjustment steps or tools during assembly.
Data Source
Figure 1
AI summary
An adjustable device for holding and securing a frame (10) to a wall opening includes a support arm designed as a profile rail (16). This support arm can be attached at several positions on a statically load-bearing wall section and simultaneously allows the attachment of an adjustment element (30). This adjustment element, in turn, has a threaded bolt (22) and an adjustable support element (24) mounted on it. During assembly, the frame (10) can be clamped and thus additionally secured by means of a further fastening element (20) in the form of a cap nut between the support element (24) and the cap nut (20).