Adjustable Window Frame Fixing Bracket for Thermal Bridge Elimination

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing window and door frame fixing devices in renovation settings face challenges in ensuring accurate anchoring depth and thermal insulation compliance, often requiring excessive labor and risking thermal bridges due to metal materials and poor sealing gasket implementation.

Innovation Solution

A device comprising adjustable fixing elements with built-in adjustment means and thermally insulating materials, allowing for precise anchoring depth adjustment and improved sealing, while minimizing labor through intuitive installation methods and reducing thermal bridges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional metal fixing brackets are used in renovation, then the frame can be secured to the wall, but thermal bridges are created and labor time increases due to complex positioning requirements

Engineering Contradiction:
Improvefixing reliabilityVSAvoidlabor time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The fixing device is divided into two separate components: a fixing element with anchoring function and a bracket element with receiving function. This segmentation allows each component to be optimized independently and simplifies the installation process by enabling modular assembly rather than requiring precise pre-positioning of a single complex bracket.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary fixing element that acts as a mediator between the wall anchoring system and the frame bracket. This intermediary component simplifies the overall installation by providing a standardized interface that reduces positioning complexity and labor time while maintaining fixing reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If traditional metal fixing brackets are used, then the frame can be attached to the wall, but thermal insulation performance deteriorates due to thermal bridging

Engineering Contradiction:
Improvefixing reliabilityVSAvoidthermal bridging
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The fixing device uses composite construction combining metal structural elements with thermal insulation materials. The bracket and fixing element incorporate insulating properties to break thermal bridges while maintaining mechanical strength for reliable frame attachment, thereby eliminating thermal bridging without sacrificing fixing reliability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies thermal insulation properties specifically at the critical thermal bridging points where the fixing bracket contacts the wall and frame. By localizing insulation materials to these specific areas, the solution addresses thermal bridging without requiring complete insulation of the entire fixing device, maintaining structural integrity while reducing thermal transfer.

Inventive Principle:
Principle #3Local quality

3Device complexity

If traditional fixing devices are used without built-in adjustment means, then the device structure remains simple, but anchoring depth precision deteriorates making compliance with minimum requirements difficult

Engineering Contradiction:
Improvedevice structureVSAvoidanchoring depth precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The fixing element is designed with built-in adjustment means and predetermined anchoring depth features during manufacturing. This preliminary preparation of adjustment mechanisms and depth specifications allows installers to easily achieve precise anchoring without complex field measurements or adjustments, maintaining simple device structure while ensuring anchoring depth precision.

Inventive Principle:
Principle #10Preliminary action

4Device complexity

If traditional fixing devices without integrated insulation are used, then the device structure remains simple, but thermal insulation performance deteriorates

Engineering Contradiction:
Improvedevice structureVSAvoidthermal bridging
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The patent merges the thermal insulation function directly into the fixing device structure by integrating insulation materials within the bracket and fixing element. This combination of structural and insulating functions in a single integrated component eliminates thermal bridging without requiring separate insulation installations, maintaining relatively simple device structure while achieving thermal insulation performance.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3889383B1Fixing device for a window frame
Publication Date: 2023.08.09 PLASTI PROCESS
  • EP3889383B1 patent drawingFigure 1~2A
  • EP3889383B1 patent drawingFigure 2B
  • EP3889383B1 patent drawingFigure 3~4A

AI summary

Fixing device for a window and/or door frame (D) suitable for fixing said frame to an anchoring face (M0) of a wall around a reveal intended to receive the joinery, said device (4) comprising at least two fixing elements that can be joined together, characterized in that one of said two elements is an adjustable fixing bracket (40), receiving the frame, and the other element is an adjustment fixing bracket (41) having a generally elongated shape whose longitudinal direction defines the longitudinal direction of the device, configured suitable for fixing to the anchoring face of the wall, and which includes adjustment means at least along said longitudinal direction.