Segmented Drywall Stud Layout for Flanking Sound Insulation

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Solution Overview

Problem

Existing drywalls do not effectively improve sound insulation, particularly in flanking sound transmission between rooms, without compromising construction costs or structural integrity.

Innovation Solution

A drywall design with a second wall section featuring stud elements arranged at a smaller regular centre distance than the first, accompanied by a facing shell, enhances sound insulation by reducing direct and flanking sound transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If stud elements are arranged with a smaller regular centre distance in the second wall section, then sound insulation is improved, but construction complexity and time increase

Engineering Contradiction:
Improvesound insulationVSAvoidconstruction complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The drywall is divided into a first wall section with first stud elements and a second wall section with second stud elements. The first and second wall sections have different regular centre distances for their stud elements, allowing each section to be optimized for its specific function while maintaining overall structural integrity and sound insulation performance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different wall sections are assigned different stud element arrangements based on local requirements. The second wall section uses a smaller regular centre distance specifically where improved sound insulation is needed, while the first wall section uses a larger regular centre distance where it is sufficient, thereby optimizing both sound insulation and construction efficiency in different locations.

Inventive Principle:
Principle #3Local quality

2Object-affected harmful factors

If stud elements are arranged with a smaller regular centre distance, then flanking sound transmission is reduced, but construction time increases

Engineering Contradiction:
Improveflanking sound transmissionVSAvoidconstruction time
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The drywall is segmented into different wall sections with different stud element densities. The second wall section with smaller regular centre distance is specifically positioned where flanking sound transmission is most problematic, allowing targeted improvement of sound insulation without requiring the entire structure to use the more time-consuming smaller centre distance arrangement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The smaller regular centre distance is applied locally in the second wall section where flanking sound transmission needs improvement, rather than uniformly across the entire drywall. This localized approach reduces construction time overall while still achieving the desired sound insulation improvement in the critical area.

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If a facing shell is added to the second wall section, then sound insulation is improved, but construction complexity increases

Engineering Contradiction:
Improvesound insulationVSAvoidconstruction complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The facing shell is integrated into the existing second wall section structure, forming a nested configuration where the facing shell works in conjunction with the second stud elements and panelling. This nested arrangement allows the facing shell to enhance sound insulation without requiring a completely separate and complex construction system.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The facing shell is combined with the second wall section to create an integrated assembly that leverages the existing stud element arrangement and panelling while adding the sound insulation benefits of the facing shell. This merging approach avoids the need for entirely separate construction systems and reduces overall complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4077825B1Drywall as well as a kit and a method for constructing a drywall
Publication Date: 2026.02.04 KNAUF GIPS KG
  • EP4077825B1 patent drawingFigure 1
  • EP4077825B1 patent drawingFigure 2
  • EP4077825B1 patent drawingFigure 3

AI summary

The invention relates to a drywall comprising a first wall section (2) with first stud elements (4), wherein the first stud elements are arranged with a first regular centre distance, wherein in the first wall section a first panelling (5) is arranged at least on one room side (R) of the first stud elements (4). The drywall is characterized by a second wall section (3) with second stud elements (6), wherein a second panelling (7) is arranged in the second wall section at least on the room side (R) of the second stud elements (6) and wherein the second stud elements are arranged with a second regular centre distance (C) which is smaller than the first regular centre distance (A). The invention also relates to a kit and a method for constructing a drywall.