Partition Wall Sound Insulation via Compressed Elastic Gap Filler

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Solution Overview

Problem

Existing partition wall constructions fail to effectively address sound leakage between adjacent chambers due to gaps between the partition wall and the floor or ceiling, with existing sound insulation materials primarily focusing on floor impact sound rather than the partition walls themselves.

Innovation Solution

A partition wall sound insulation structure and method that incorporates a sound insulation material made from an elastic material, compressed in the vertical direction, sandwiched between the partition wall and the floor or ceiling surfaces to improve sound insulation performance by blocking sound leakage through the gaps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a sound insulation material is loaded on a lower end portion side of a partition wall to prevent floor impact sound propagation, then floor impact sound insulation is improved, but sound insulation against the partition wall itself is not addressed

Engineering Contradiction:
Improvefloor impact sound insulationVSAvoidsound insulation coverage
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The sound insulation material is designed to simultaneously address multiple sound insulation needs: it prevents floor impact sound propagation while also insulating the partition wall itself from sound transmission to adjacent chambers, achieving multi-functional sound insulation coverage

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

Solution Approach 2:

The sound insulation material extends not only at the lower end portion but also along the entire length of the partition wall, transitioning from a localized solution to a comprehensive wall-length solution that addresses sound transmission through the partition wall structure itself

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If gaps are present between the partition wall and floor/ceiling surfaces, then construction simplicity is maintained, but sound leakage occurs between adjacent chambers

Engineering Contradiction:
Improveconstruction simplicityVSAvoidsound leakage
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The sound insulation material acts as an intermediary element that fills the gaps between the partition wall and floor/ceiling surfaces, preventing sound leakage while maintaining the simplicity of the construction method as the material is simply loaded during the construction process

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The sound insulation material is prepared and positioned in advance during construction, so that when the partition wall is assembled, the gaps are already filled and sound insulation is immediately provided without requiring additional post-construction steps

Inventive Principle:
Principle #10Preliminary action

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

The solution effectively suppresses sound leakage between chambers by enhancing the adhesion of the sound insulation material to the partition wall, resulting in improved sound insulation performance across a broader frequency range, particularly above 1 kHz.

Implementation Method 1

a sound insulation material made from an elastic material and including a portion disposed in the gap while being compressed in the vertical direction

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12104374B2Sound insulation structure of partition wall and method for constructing partition wall
Publication Date: 2024.10.01 SEKISUI HOUSE KK
  • US12104374B2 patent drawing
  • US12104374B2 patent drawing
  • US12104374B2 patent drawing

AI summary

A partition wall sound insulation structure includes: a floor material on which a floor surface facing an indoor space side is formed; a ceiling material on which a ceiling surface is formed, the ceiling surface being opposed to the floor surface in a vertical direction with an indoor space interposed therebetween; a partition wall that extends in the vertical direction so as to partition the indoor space in a horizontal direction and that is disposed with a gap from at least one surface of the floor surface and the ceiling surface; and a sound insulation material made from an elastic material and including a portion disposed in the gap while being compressed in the vertical direction.