Acoustic Panel Mounting Plate for Hidden Tool-Free Fastening

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Solution Overview

Problem

Existing acoustic panel systems are time-consuming and costly to install due to their rigid design and requirement for visible screws, limiting flexibility and aesthetic appeal.

Innovation Solution

An acoustic panel system featuring a mounting plate with perforations or embossments for tool-free installation of acoustic elements using friction-connecting fastening elements, allowing for flexible positioning and enhanced sound absorption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If acoustic panels are fastened using screws through the front surface, then secure fastening is achieved, but visible screws deteriorate aesthetic appearance

Engineering Contradiction:
Improvefastening securityVSAvoidaesthetic appearance
Core Design Contradiction:
StrengthVSShape

Solution Approach 1:

The fastening direction is inverted: instead of fastening from the front surface through the panel, the system fastens from the rear side. The mounting plate is attached to the wall/ceiling first, then acoustic elements are secured to the mounting plate from behind, hiding all fastening components from the room interior and eliminating visible screws while maintaining secure fastening.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

A mounting plate serves as an intermediary component between the wall/ceiling surface and the acoustic elements. This intermediate structure provides a hidden fastening surface on the rear side, allowing secure attachment of acoustic elements without exposing fastening hardware from the front, thus resolving the conflict between secure fastening and aesthetic appearance.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If acoustic panels use premanufactured laminate construction, then manufacturing precision is improved, but installation flexibility and adaptability are reduced

Engineering Contradiction:
Improvepanel construction precisionVSAvoidinstallation flexibility
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The system is segmented into separate components: a mounting plate and individual acoustic elements. This segmentation allows the mounting plate to be precisely manufactured with standardized perforation patterns while acoustic elements can be selected and arranged flexibly to meet different acoustic and aesthetic requirements, thus maintaining manufacturing precision while enhancing adaptability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from a rigid premanufactured laminate to a dynamic assembly system where acoustic elements can be independently positioned and arranged. The standardized mounting plate with multiple perforation options enables flexible configuration and reconfiguration of acoustic elements to adapt to different room acoustics and design requirements.

Inventive Principle:
Principle #15Dynamics

3Strength

If traditional screw fastening through laths is used, then secure attachment is achieved, but installation time and labor costs increase

Engineering Contradiction:
Improveattachment securityVSAvoidinstallation time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The fastening system incorporates self-service features through friction-connecting means that enable tool-free attachment. The acoustic elements can be directly secured to the mounting plate by inserting and pressing them into place, where friction and geometric interlocking provide secure attachment without requiring screws, drills, or other tools, dramatically reducing installation time while maintaining secure attachment.

Inventive Principle:
Principle #25Self-service

4Ease of operation

If tool-free friction connecting is used, then installation speed and ease are improved, but fastening strength may be reduced

Engineering Contradiction:
Improveinstallation easeVSAvoidfastening strength
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The system merges multiple fastening mechanisms within the friction-connecting means: friction engagement between the acoustic element and mounting plate, geometric interlocking through the perforation and element shape, and potential elastic deformation of flexible elements. This combination of mechanisms provides secure fastening strength comparable to or exceeding traditional screw fastening while maintaining tool-free installation ease.

Inventive Principle:
Principle #5Merging (Combining)

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

Facilitates quick, easy installation of acoustic panels with improved aesthetic and sound absorption properties, reducing labor costs and increasing installation speed.

Implementation Method 1

the first part or the second part being arranged with a friction-connecting means, such that the first part or the second part may be connected to the mounting plate or the acoustic elements without the use of any tools

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3772555B1Acoustic panel system, fastening element, and method for arranging an acoustic panel system on a wall or ceiling surface
Publication Date: 2024.12.11 KNAUF (SNC)
  • EP3772555B1 patent drawingFigure 1A~1B
  • EP3772555B1 patent drawingFigure 2
  • EP3772555B1 patent drawingFigure 3A~3C

AI summary

The present invention relates to an acoustic panel system, a fastening element, and a method for arranging an acoustic panel system on a wall or ceiling surface. The system comprises a mounting plate, suitable for fastening to a wall or ceiling surface, and a number of acoustic elements suitable for fastening to the mounting plate via a number of individual fastening elements, where a first part or a second part of the fastening element comprises friction- connecting means, such that the acoustic elements can be mounted to the mounting plate without the use of any tools.