Woven Support Seat Assembly for Thin, Quiet Auditorium Seating

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Solution Overview

Problem

Existing auditorium and theater seat assemblies require costly metal springs or wire mesh, which are noisy, prone to rust, and uncomfortable due to their material characteristics, and often necessitate complex mounting methods.

Innovation Solution

A seat assembly featuring a frame with flexible woven supports integrated within a molded foam cushion, allowing for reduced thickness, ease of egress, and cost-effective manufacturing, with connectors extending through holes in the foam for attachment to a frame, enabling a lightweight, durable, and versatile seating solution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If metal springs or wire mesh are used in seat assemblies, then structural support is provided, but the seats become noisy, prone to rust, and uncomfortable

Engineering Contradiction:
Improvestructural supportVSAvoidnoise and rust
Core Design Contradiction:
StrengthVSObject-generated harmful factors

Solution Approach 1:

The patent replaces expensive, problematic metal springs with inexpensive woven fabric strips that can be easily replaced. The fabric webbing is a simple, low-cost alternative that eliminates rust and noise issues while maintaining structural support functionality.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent substitutes the mechanical spring system with a fabric-based tension system. Instead of metal coils that compress and expand, the invention uses woven fabric strips that provide support through tensile strength and flexibility, fundamentally changing the mechanical approach to seat support.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Strength

If metal springs are used in seat assemblies, then load bearing capacity is achieved, but manufacturing costs increase due to materials and tooling

Engineering Contradiction:
Improveload bearing capacityVSAvoidmanufacturing cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent replaces expensive metal springs with inexpensive woven fabric strips. The fabric webbing is significantly cheaper than metal springs both in material cost and manufacturing, eliminating the need for specialized spring manufacturing tooling and reducing overall production costs.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent changes the material parameter from metal to fabric, fundamentally altering the properties of the support element. This material substitution reduces cost while maintaining adequate load-bearing capacity through the fabric's tensile strength and flexibility.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If padding is placed over metal springs, then comfort is provided, but the padding wears quickly from contact with the springs

Engineering Contradiction:
ImprovecomfortVSAvoidpadding durability
Core Design Contradiction:
Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The patent replaces the problematic metal spring interface with smooth fabric webbing that does not abrade padding material. The fabric surface is gentler on the padding cover, extending its service life while maintaining comfort.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent converts the potential harm of rigid metal springs against padding into a benefit by using flexible fabric webbing. The fabric's softness and flexibility protect the padding from wear while still providing necessary structural support, turning a previously harmful interface into a protective one.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

4Strength

If a single continuous web is used between side rails, then load distribution is improved, but mounting complexity increases requiring J-clips and flanges

Engineering Contradiction:
Improveload distributionVSAvoidmounting complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent divides the continuous web concept into multiple separate fabric strips that can be independently attached to the seat frame. This segmentation simplifies mounting by allowing each strip to be attached separately using simple adhesive or stitching, eliminating the need for complex J-clip and flange assemblies.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses simple, inexpensive fabric strips instead of complex continuous web systems with specialized mounting hardware. The individual strips can be easily attached with basic adhesives or stitching, dramatically reducing mounting complexity and eliminating the need for specialized J-clip and flange components.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

5Length of moving object

If reduced thickness is achieved in seat assemblies, then space and ease of egress are improved, but structural support may be compromised

Engineering Contradiction:
Improveseat thicknessVSAvoidstructural support
Core Design Contradiction:
Length of moving objectVSStrength

Solution Approach 1:

The patent uses thin, flexible fabric webbing strips to provide structural support in a minimal thickness profile. The fabric strips can be arranged in multiple layers or patterns to achieve adequate support while maintaining a thin overall seat construction that improves space efficiency and egress.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent combines fabric webbing with foam padding to create a composite support system. The fabric provides tensile strength and structural definition, while the foam provides compression support and comfort, achieving adequate structural support in a reduced thickness compared to traditional spring-based designs.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS7690732B2Molded seat assembly with flexible weaving
Publication Date: 2010.04.06 SERIES INTERNATIONAL LLC
  • US7690732B2 patent drawing
  • US7690732B2 patent drawing
  • US7690732B2 patent drawing

AI summary

A seat assembly including an assembly frame having at least two seat connection brackets, a seat frame, two or more connectors attached to the seat frame, the two or more connectors removably attached to the two or more seat connection brackets, two or more flexible supports extending across at least a portion of the seat frame, each support including a woven material, and a foam cushion including one or more holes, wherein the seat frame and the two or more flexible supports are molded within the foam cushion, and wherein the one or more connectors extend at least partially within the one or more holes.