Daisy Chain Webbing Thermal Shrinkage Joint

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Solution Overview

Problem

Existing daisy chains are prone to tearing at the hoops due to the separation of one-piece webbing units during long-term use, posing safety hazards.

Innovation Solution

A daisy chain design featuring two webbings with different thermal shrinkage rates, seamlessly jointed at both ends, with one-piece webbing units woven on opposite sides and uniformly distributed intervals, along with an arc-shaped loop between adjacent units, ensuring structural integrity and safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If one-piece webbing units are sewn by a needle swing machine at intervals with loops between adjacent units, then the daisy chain can be manufactured with simple structure, but the webbing units are prone to tearing during long-term use

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidresistance to tearing
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent merges the first webbing and second webbing into a compound webbing structure where both webbings are seamlessly jointed together at two ends. This combining of multiple webbings into a unified compound structure eliminates the separation issue that causes tearing at hoops, while maintaining manufacturing efficiency through integrated construction.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent employs composite material construction by using two different webbings (first webbing and second webbing) with different thermal shrinkage characteristics. These composite webbings are jointed together to form a compound webbing that leverages the properties of both materials to prevent tearing while maintaining structural integrity during long-term use.

Inventive Principle:
Principle #40Composite materials

2Strength

If compound sections are uniformly distributed along the daisy chain at intervals, then structural strength is improved, but the complexity of the daisy chain structure increases

Engineering Contradiction:
Improvestructural strengthVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent applies segmentation by creating multiple compound sections along the daisy chain at uniform intervals. Each compound section consists of the first and second webbings jointed together, providing localized strength enhancement. This segmented approach distributes structural reinforcement throughout the chain without requiring complete complexity throughout the entire structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements local quality by concentrating the compound webbing structure (first webbing + second webbing) at specific intervals along the daisy chain rather than uniformly throughout. This allows the chain to have enhanced strength where compound sections are located while maintaining simpler construction in other areas, optimizing the balance between strength and complexity.

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design enhances the durability and reliability of the daisy chain by preventing separation of webbing units under stress, making it safer and more reliable for long-term use.

Implementation Method 1

a first webbing and a second webbing, which are different in thermal shrinkage; the first webbing and the second webbing are seamless jointed together at two ends thereof

Methodology Applied
Scientific EffectThermal shrinkage: Thermal Contraction

Data Source

PatentEP3034662B1Daisy chain
Publication Date: 2017.08.02 POLYUNION TEXTILE SHENZHEN FACTORY
  • EP3034662B1 patent drawingFigure 1~2

AI summary

The present invention discloses a daisy chain, comprising a first webbing (1) and a second webbing (2), which are different in thermal shrinkage; the first webbing (1) and the second webbing (2) are seamless jointed together at two ends thereof, respectively; one-piece webbing units (3) are woven relative to one another on opposite sides of the first webbing (1) and the second webbing (1), the one-piece webbing units (3) being uniformly distributed along the daisy chain at intervals; furthermore, a loop (4) is further provided between the adjacent one-piece webbing units (3). The arrangement of one-piece webbing units (3) avoids the safety hazards caused by the separation of the first webbing (1) from the second webbing (1) when the loop is long-term stressed. The daisy chain provided by the present invention is simple in structure, and safe and reliable in use.