Adjustable Ventilation Profile Fastener for Uneven Facades

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Solution Overview

Problem

Existing ventilation profiles for rear-ventilated facades require multiple versions to accommodate different ventilation gap widths, leading to storage inefficiencies and difficult installations due to unevenness, which can result in mechanical instability and unreliable attachment.

Innovation Solution

A system featuring a fastening profile with multiple coupling sections and positions, allowing for adjustable attachment to ventilation profiles, enabling the same profile to be used across various gap widths without pre-drilling, and a connecting element that allows for thermal expansion compensation, ensuring stable and reliable mounting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple different ventilation profiles are kept available for different width dimensions, then the ventilation gap can be covered accurately, but storage costs increase significantly

Engineering Contradiction:

Improveadaptability to different ventilation gap widthsVSAvoidstorage costs for multiple profile versions

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The fastening profile is designed with multiple coupling sections, each containing multiple coupling positions that can accommodate different connecting means. This allows a single fastening profile to serve multiple functions by adapting to different ventilation gap widths through selective use of coupling positions, eliminating the need to store multiple different profile versions

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If the ventilation profile is rigidly fixed to accommodate wall unevenness, then attachment reliability improves, but internal stresses occur that reduce mechanical stability

Engineering Contradiction:

Improveattachment reliabilityVSAvoidmechanical stability of the ventilation profile

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The fastening profile incorporates adjustable coupling positions that allow dynamic adaptation to wall unevenness. By selecting appropriate coupling positions from multiple available options, the system can accommodate variations in wall surface without creating internal stresses, maintaining both attachment reliability and mechanical stability

Inventive Principle:

Principle #15Dynamics

3Manufacturing precision

If pre-drilling is performed during assembly to adjust coupling positions, then precise fitting is achieved, but assembly time and complexity increase

Engineering Contradiction:

Improveprecision of coupling position alignmentVSAvoidassembly speed

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The coupling positions are pre-defined in the fastening profile during manufacturing, with connecting means already positioned at specific locations. This preliminary preparation eliminates the need for on-site pre-drilling and adjustment, allowing for both precise fitting and rapid assembly by simply selecting the appropriate pre-defined coupling position

Inventive Principle:

Principle #10Preliminary action

4Strength

If thermal expansion is restrained by rigid attachment, then attachment strength improves, but warping occurs that compromises overall stability

Engineering Contradiction:

Improveattachment strengthVSAvoidstability of the ventilation profile and substructure

Core Design Contradiction:

StrengthVSStability of the object's composition

Solution Approach 1:

The system allows for parameter changes in the coupling positions to accommodate thermal expansion. By selecting coupling positions that provide appropriate clearance or flexibility, the system maintains attachment strength while allowing for dimensional changes due to temperature variations, preventing warping and maintaining overall stability

Inventive Principle:

Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables easy, adaptable, and reliable installation of ventilation profiles across different gap widths and uneven surfaces, reducing storage needs and ensuring long-term stability and mechanical integrity.

Implementation Method 1

there is the problem that thermal expansion of the ventilation profile can lead to warping of the ventilation profile or of the substructure connected to the ventilation profile

Methodology Applied

Scientific EffectThermal expansion: Thermal Expansion

Data Source

PatentEP2589725B1Connection element and system for vent profiles for rear-ventilated facades of buildings

Publication Date: 2019.06.26 PROTEKTORWERK FLORENZ MAISCH GMBH & CO KG

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Figure 5a~5c

AI summary

The profile (10) has a fastening bracket (12) connected to a building section, and a connection bracket (16) connected with a ventilation profile. The connection bracket has coupling sections (18) that are arranged at a distance from each other in a longitudinal section (x), where coupling positions (22) are defined in each coupling section. The coupling bracket is coupled with a connection unit e.g. screw or connector, for the ventilation profile in the coupling positions. The fastening bracket has a hole (14) with a round cross-section and/or a longitudinal hole. Independent claims are also included for the following: (1) a system for fastening a ventilation profile to a building section (2) a connection element for connecting a ventilation profile to a building section.