Facade Fastening Element With Elastic Connecting Elements

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Solution Overview

Problem

Existing facade systems lack the ability to easily and securely attach and detach panel-shaped or profile-shaped components from building substrates, limiting design flexibility and reusability, as well as efficient force distribution.

Innovation Solution

A fastening element with a plate-like section and a shaft-like section, featuring pin, mushroom-head, hook, and loop-shaped connecting elements for non-positive and positive connections, allowing for secure attachment and easy removal of components, and optionally using a multi-part design for optimized material usage and assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional disc anchors with receiving bores are used to fasten building elements to substrates, then secure anchoring is achieved, but easy and quick attachment and detachment is not possible

Engineering Contradiction:
Improveease of attachment and detachmentVSAvoidsecure anchoring
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The fastening element is divided into a plate-like first fastening section with connecting elements and a shaft-like second fastening section for receiving the connecting element. This segmentation allows the plate section to provide secure anchoring while the shaft section enables easy attachment and detachment through the connecting element mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connecting elements on the plate-like fastening section are designed to be elastically deformable, allowing them to dynamically adapt during attachment and detachment. The elastic deformation enables the connecting elements to engage with and disengage from corresponding elements on building components, facilitating quick and easy attachment and removal while maintaining secure anchoring when engaged.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If conventional fastening elements are used, then structural stability is maintained, but design flexibility and reusability are limited

Engineering Contradiction:
Improvedesign flexibility and reusabilityVSAvoidstructural stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The fastening element serves multiple functions: the plate-like first fastening section with various connecting elements (pin, mushroom-head, hook, loop-shaped) provides versatility for different building components and configurations, while the shaft-like second fastening section ensures secure anchoring to the substrate. This multi-functionality enables design flexibility and reusability without compromising structural stability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The fastening element is designed to be reusable rather than single-use. After detachment, the elastic connecting elements return to their original shape, allowing the fastening element to be reused for subsequent alignment or replacement of building components, thereby enhancing design flexibility and reducing material waste.

Inventive Principle:
Principle #34Discarding and recovering

3Strength

If simple plate anchors are used, then easy attachment is achieved, but effective force distribution and secure anchoring are insufficient

Engineering Contradiction:
Improveeffective force distributionVSAvoidfastening element structure
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The fastening element is segmented into a plate-like first fastening section for force distribution and a shaft-like second fastening section for anchoring. This segmentation allows each section to be optimized for its specific function while working together to provide effective force distribution and secure anchoring without excessive overall complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the fastening element have different local properties: the plate-like section provides a large surface area for force distribution, while the shaft-like section provides concentrated anchoring strength. The connecting elements have localized elastic properties for easy engagement and disengagement. This local quality optimization achieves effective force distribution and secure anchoring with minimal overall complexity.

Inventive Principle:
Principle #3Local quality

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 secure and reusable attachment of facade components, allowing for flexible design and easy reconfiguration, while ensuring tensile forces are effectively dissipated into the substrate, and reducing material costs through optimized part design and assembly.

Implementation Method 1

pin-, mushroom-head, hook- and/or loop-shaped connecting elements for friction-fit and/or form-fit connection with corresponding connecting elements on a plate- or profile-shaped building component

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

the connecting elements are preferably designed to be at least slightly elastically deformable

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

ensuring tensile forces are effectively dissipated into the substrate

Methodology Applied
Scientific EffectTension: Tension

Data Source

PatentEP2436851B1Fixing element, fixing system and facade system
Publication Date: 2020.04.22 STO SE & CO KGAA
  • EP2436851B1 patent drawingFigure 1
  • EP2436851B1 patent drawingFigure 2
  • EP2436851B1 patent drawingFigure 3

AI summary

The invention relates to a fastening element (1) for fastening at least one plate- or profile-shaped building component (2, 10) to a substrate (3) provided by the building, comprising a plate-like first fastening section (4) and a shaft-like second fastening section (5) attached thereto for receiving a connecting element (6) and/or a further fastening element (7). According to the invention, the side of the plate-like first fastening section (4) facing away from the shaft-like second fastening section (5) has pin-, mushroom-head-, hook- and/or loop-shaped connecting elements (8) for force-fit and/or form-fit connection with corresponding connecting elements (9) on a plate- or profile-shaped building component (10). The invention further relates to a fastening system with such a fastening element (1), a facade system comprising such a fastening system, and a method for manufacturing a facade system.