Motor Vehicle Seat Decorative Strip with Variable Weave Density
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Solution Overview
Problem
Decorative strips for motor vehicle seats, particularly those woven on a narrow loom, often have textures that make them incompatible with standard seat covers, leading to deformations and undulations during assembly by sewing.
Innovation Solution
A woven tape or strip with sectors of lower weave density, allowing for seamless integration with seat covers without undulations, achieved by reducing the number of threads per unit area or thread diameter in specific regions, enabling compatibility with assembly by stitching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If decorative ribbons or bands are glued to a support for assembly to the seat cover, then assembly is simplified, but the decorative ribbons are often incompatible with woven seat covers and create deformations and undulations at the seam
Solution Approach 1:
The patent applies parameter changes by modifying the weave density of the decorative strip in specific zones. The strip includes a first zone with a first weave density and a second zone with a second weave density that is different from the first density. This variation in weave density parameters allows the strip to be sewn to woven seat covers without creating deformations or undulations at the seam, while maintaining the decorative appearance.
2Adaptability or versatility
If decorative strips are cut from usual cover materials, then material compatibility is improved, but aesthetic effect and design variety are reduced
Solution Approach 1:
The patent employs composite material principles by creating a decorative strip that combines different weave densities within a single continuous structure. The strip integrates a first zone with a first weave density and a second zone with a second weave density, allowing it to function both as a decorative element and as a compatible sewing material. This composite structure enables the strip to be sewn to woven seat covers while maintaining aesthetic design variety and flexibility.
3Adaptability or versatility
If the weave density of the entire strip is reduced to enable sewing, then sewing compatibility is improved, but the structural integrity and decorative quality of the strip is compromised
Solution Approach 1:
The patent applies local quality principles by creating zones with different weave densities in specific locations along the strip. The first zone has a first weave density suitable for maintaining structural integrity and decorative quality, while the second zone has a second weave density optimized for sewing compatibility. This localized variation allows the strip to maintain overall strength and aesthetic quality while providing specific areas that are easy to sew.
Data Source
Figure 1~2A
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Figure 5A~6
AI summary
Cover (1) for motor vehicle seat comprising at least one cover piece (P) assembled to at least one band (2) of which at least a portion (23, 25) has a weave having a first density and at least one sector (22) has a weave of a second density lower than the first density, the assembly seam between the band (2) and the cover piece (P) being disposed at the sector (22) having the second density.