Unequal-Leg Binding Strap for Crease-Free Garment Edging

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Solution Overview

Problem

Existing binding tapes for garments require complex doubling operations and cannot be worn seamlessly against the body, limiting their functionality and efficiency in production and use.

Innovation Solution

A Y-shaped binding tape with unequal leg lengths and a non-split portion, allowing for seamless integration with garments and eliminating complex doubling steps, made from elastic textile material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If traditional binding tapes are used with doubling operations, then the binding tape provides sufficient strength and stability, but the production process becomes complex and time-consuming

Engineering Contradiction:
Improveproduction process simplicityVSAvoidbinding tape structure complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The binding tape is divided into two distinct legs of unequal lengths extending from a central attachment line. This segmentation allows the binding tape to function without complex doubling operations, simplifying the production process while maintaining structural integrity. The first leg (longer) and second leg (shorter) can be independently positioned and secured.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The binding tape employs asymmetric design with legs of different lengths (first leg longer than second leg). This asymmetry eliminates the need for symmetric doubling operations, reducing production complexity. The unequal leg lengths provide functional differentiation while simplifying the manufacturing process compared to traditional symmetric doubled binding tapes.

Inventive Principle:
Principle #4Asymmetry

2Ease of operation

If traditional doubled binding tapes are used, then the binding tape provides adequate coverage, but it creates creases that prevent seamless wear against the body

Engineering Contradiction:
Improvewear comfort and seamlessnessVSAvoidbinding tape surface smoothness
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

Instead of folding the binding tape back on itself (doubling), the invention inverts the approach by extending two legs in opposite directions from a central attachment line. This eliminates the creases and folds inherent in traditional doubled binding tapes, providing a smooth surface that can wear seamlessly against the body.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The binding tape transitions from a one-dimensional folded structure to a two-dimensional configuration with legs extending in different directions from the attachment line. This dimensional change eliminates the need for folding, thereby removing creases and enabling seamless wear against the skin.

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

3Productivity

If unequal leg lengths are used in the binding tape, then the binding tape can be easily inserted and secured, but the structural symmetry is compromised

Engineering Contradiction:
Improvegarment assembly efficiencyVSAvoidbinding tape geometric symmetry
Core Design Contradiction:
ProductivityVSShape

Solution Approach 1:

The binding tape deliberately employs asymmetric leg lengths to improve garment assembly efficiency. The unequal lengths (first leg longer than second leg) allow for easier insertion and securing of the garment edge, while the asymmetric design itself becomes the functional feature rather than a deviation from symmetry.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentEP4627958A1Binding strap for clothing
Publication Date: 2025.10.08 EDELWEISS BASICS GMBH & CO KG
  • EP4627958A1 patent drawingFigure 1
  • EP4627958A1 patent drawingFigure 2~3
  • EP4627958A1 patent drawing

AI summary

Edging tape for garments to be edged (B), wherein the edging tape (1) has a split line (4) along its longitudinal direction, wherein the edging tape (1) splits from the split line (4) into a first edging leg (2) with a leg length Y and into a second edging leg (3) with a leg length X, characterized in that the leg length Y is greater than the leg length X.