Retractable Wall Track and Membrane Structure for Long Acoustic Spans

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Solution Overview

Problem

Existing retractable wall systems struggle to span longer distances and support heavier fabrics, lacking the necessary structural integrity and acoustic barrier capabilities.

Innovation Solution

A retractable wall system featuring a track with a specific cross-sectional profile and a tube with interior structural members, along with a flexible membrane barrier sheet connected via zippered sides, providing structural rigidity and sound dampening properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If existing retractable wall systems are used, then installation is simple, but they cannot span longer distances or support heavier fabrics

Engineering Contradiction:
Improvespan distanceVSAvoidstructural integrity
Core Design Contradiction:
Length of moving objectVSStrength

Solution Approach 1:

The track is divided into multiple modular sections that can be connected end-to-end to achieve longer span distances. Each track section contains integrated structural members and channels that maintain strength across joints, allowing the system to scale in length without proportionally increasing weakness at connection points.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The track structure combines multiple materials including aluminum extrusions with reinforced interior channels, fabric membranes with tensioning systems, and structural connectors. This composite construction provides both the length needed for long spans and the strength required to support heavy fabrics while maintaining structural integrity throughout the assembled system.

Inventive Principle:
Principle #40Composite materials

2Object-affected harmful factors

If existing retractable wall systems are used, then device complexity is low, but acoustic barrier capabilities are insufficient

Engineering Contradiction:
Improveacoustic insulationVSAvoidsystem complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The fabric membrane is nested within the track structure, with the fabric running through interior channels of the track sections. This nesting arrangement allows the fabric to be held under tension while being protected by the track, creating an effective acoustic barrier without requiring additional external framing or support structures that would increase system complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

A taut fabric membrane serves as the acoustic barrier, stretched across and between track sections. The fabric is secured within the track's interior channels and maintained under tension through integrated routing mechanisms, providing effective sound blocking while keeping the overall system design relatively simple and avoiding complex rigid panel assemblies.

Inventive Principle:
Principle #30Flexible shells and thin films

3Object-affected harmful factors

If heavier fabrics are used, then acoustic barrier capability improves, but structural support requirements increase

Engineering Contradiction:
Improveacoustic insulationVSAvoidstructural support force
Core Design Contradiction:
Object-affected harmful factorsVSForce

Solution Approach 1:

The track structure incorporates locally reinforced sections at critical support points including track joints, end connections, and intermediate support locations. These localized strengthening features provide concentrated structural support where the weight of heavy fabrics creates maximum stress, allowing the use of acoustic-performance fabrics without requiring uniformly increased structural complexity throughout the entire system.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The track structure utilizes three-dimensional interior channels and cross-sectional geometry to distribute the weight of heavy fabrics across multiple structural planes. The vertical and lateral dimensions of the track's interior configuration create a distributed support system that handles fabric weight through spatial distribution rather than concentrating support forces at single points, reducing overall structural demands.

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

Data Source

PatentUS9428955B2Retractable wall system
Publication Date: 2016.08.30 TUDELU LLC
  • US9428955B2 patent drawing
  • US9428955B2 patent drawing
  • US9428955B2 patent drawing

AI summary

The present invention is directed to an apparatus for erecting a retractable wall system. More particularly, this invention relates to a retractable wall system and its components which may be used to divide a room or space, create an acoustic barrier, create a freestanding structure, or provide an awning.