Stitch Structure with Tape-Bonded Skin Side
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Solution Overview
Problem
Existing flat seaming methods result in raised sections with decorative threads on the skin side, causing discomfort and reducing the quality of the seam, especially when worn.
Innovation Solution
A seam structure comprising a first and second fabric with parallel edges, where the first and second seams are formed by threads running through the fabrics in a repetitive reciprocating manner, and a decorative seam straddling across these, with a tape-like member bonding the fabrics on the skin side to minimize skin contact and enhance quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If flat seaming is used with decorative threads, then aesthetic appeal is improved, but skin comfort deteriorates due to raised sections on the skin side
Solution Approach 1:
The patent extracts the decorative function from the skin-side surface by positioning all decorative threads on the opposite surface only. The seam structure includes a first surface with decorative threads and a second surface (skin side) that is substantially flat without decorative elements, thereby separating aesthetic function from skin contact function.
Solution Approach 2:
The patent resolves the contradiction by moving the decorative elements to another dimension - specifically, to the opposite surface of the seam structure. Instead of having decorative threads on both surfaces or on the skin side, the design places them exclusively on the non-skin side, utilizing the third dimension (surface orientation) to satisfy both aesthetic and comfort requirements.
2Object-affected harmful factors
If decorative threads are removed from the skin side, then skin comfort is improved, but quality deteriorates due to exposure of fabric edges
Solution Approach 1:
The patent positions the decorative threads on the opposite surface (non-skin side) of the seam structure, utilizing surface orientation as another dimension. This allows the skin side to remain flat and comfortable while the opposite surface provides aesthetic coverage and quality appearance.
Solution Approach 2:
The seam structure is segmented into two distinct surfaces with different functions: a first surface (opposite to skin side) that contains decorative threads for aesthetic purposes, and a second surface (skin side) that is substantially flat for comfort. This functional segmentation resolves the contradiction between comfort and quality.
3Strength
If multiple threads are used for flat seaming, then strength and durability are improved, but complexity of the seam structure increases
Solution Approach 1:
The patent combines multiple thread functions into a unified seam structure where decorative threads and structural threads work together in an integrated manner. The decorative threads are incorporated into the seam formation process itself rather than being added as separate elements, merging aesthetic and structural functions.
Solution Approach 2:
The seam structure achieves multi-functionality by using threads that simultaneously provide structural strength and decorative appearance. The same thread system that creates the strong flat seam also creates the aesthetic pattern on the opposite surface, eliminating the need for separate decorative elements and reducing overall complexity.
Data Source
AI summary
A stitch structure has a first surface, a second surface, and includes: a first fabric having a first end section; a second fabric having a second end section; a first stitching that extends in a direction substantially parallel to the direction of extension of the first end section; a second stitching that extends in a direction substantially parallel to the direction of extension of the second end section; a third stitching; and a tape-shaped member. Additionally, a first thread and a second thread is arranged in the first stitching and the second stitching, respectively, to repeatedly return across and penetrate the first fabric and the second fabric, in the thickness direction thereof. A decorative thread is arranged in the third stitching to repeatedly span between at least the first thread and the second thread and the tape-shaped member is binding the first fabric and the second fabric.