Fabric for modular chair
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing chair fabrics with varying mechanical properties for modular chairs often result in visible irregularities, uneven surfaces, and uncontrolled fabric release from the structure, impacting both comfort and aesthetic appeal.
Innovation Solution
A modular chair fabric with a hybrid structure combining knitted and woven techniques, using a main filament and secondary yarns woven alternately or between layers to create localized areas of different mechanical properties, which are concealed within the fabric, ensuring a smooth surface and secure attachment to the chair frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If portions of fabric with different elasticities are created to provide varied mechanical properties, then functional adaptability is improved, but visual uniformity deteriorates due to visible irregularities
Solution Approach 1:
The patent applies local quality by creating specific zones within the fabric with different mechanical properties through varied knitting patterns, yarn types, or stitch densities in localized areas while maintaining overall visual uniformity. This allows different portions of the fabric to have tailored elasticity and support characteristics without creating visible irregularities across the entire surface.
Solution Approach 2:
The patent utilizes parameter changes by modifying physical or chemical properties of the fabric in localized regions, such as changing yarn composition, knitting tension, or stitch structure, to achieve different mechanical properties in different areas while keeping the visual appearance consistent through careful selection of parameters that do not affect surface uniformity.
2Adaptability or versatility
If fabric sections with different mechanical properties are implemented, then functional performance is improved, but surface regularity deteriorates causing discomfort
Solution Approach 1:
The patent implements local quality by introducing functional variations in specific zones of the fabric through different knitting patterns, yarn selections, or stitch densities tailored to specific anatomical regions, while ensuring that these local modifications do not compromise the overall surface regularity and smoothness required for user comfort.
Solution Approach 2:
The patent employs composite materials by combining different yarn types, fiber compositions, or fabric structures within a single fabric piece to achieve zones with different mechanical properties. These composite structures are integrated in a way that maintains surface regularity, preventing perceptible irregularities that would cause discomfort to the user.
3Reliability
If fabric is coupled to structure using traditional methods, then attachment is achieved, but fabric release becomes uncontrolled affecting reliability
Solution Approach 1:
The patent applies dynamics by creating a coupling mechanism that allows the fabric to dynamically adjust its attachment state based on operational conditions. The fabric can be securely attached during normal use while allowing controlled release or adjustment when needed, transitioning between fixed and flexible states to optimize both reliability and ease of adjustment.
Solution Approach 2:
The patent implements self-service through a coupling mechanism that automatically maintains proper fabric tension and attachment without requiring external intervention. The system self-regulates to prevent uncontrolled fabric release while maintaining secure attachment, using inherent mechanical properties or smart materials that respond to tension changes to keep the fabric properly positioned.
Data Source
AI summary
Fabric for a modular chair suitable for defining a surface in use and for supporting a user when seated on the chair, and a perimeter area defined by edges of the surface. The fabric includes, at the surface, a periodic weave, the base of which includes at least one main filament, inside of which at least one secondary filament is also inserted, arranged in a weft along a predetermined trajectory. The main filament and the secondary filament are mutually and tightly attached at the perimeter area. The fabric includes at least one spool defining a long element trapped inside part of the fabric along the perimeter area wherein the weaving of the main filament creates a tubular shape suitable for housing the spool, and the secondary filament at least partially wraps the spool to mutually block the main filament and the secondary filament at the spool.