Multiple Yarn Guide With Segmented Members

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Solution Overview

Problem

Existing yarn guide systems are complex to assemble and prone to damage, with a high number of components and a comb-shaped design that is easily damaged.

Innovation Solution

A multiple yarn guide system with a reduced number of components, featuring guide members arranged in a line that form yarn accommodating spaces, eliminating the need for a round bar guide and incorporating inclined mating surfaces and projecting portions to prevent yarn slippage and damage, allowing for easy assembly and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a round bar-shaped bar guide is used to provide the yarn path, then the yarn guidance function is achieved, but the number of components increases and assembly becomes difficult

Engineering Contradiction:
Improveassembly easeVSAvoidnumber of components
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the functions of multiple separate guides into a single integrated guide member. The guide member includes multiple guide portions (first guide portion, second guide portion, third guide portion) that collectively perform the yarn path regulation function previously requiring separate round bar guides and regulating guides, thereby reducing component count and simplifying assembly

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a comb-shaped yarn guide beam is used, then yarn guidance is provided, but the structure is readily damaged

Engineering Contradiction:
Improvedamage resistanceVSAvoidcomb shape vulnerability
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The patent segments the guide function into multiple independent guide portions (first guide portion, second guide portion, third guide portion) formed on a single guide member. This segmentation allows each portion to independently perform its guidance function without the structural vulnerability of comb-shaped designs, where one damaged tooth would compromise the entire structure. If one guide portion is damaged, others continue to function.

Inventive Principle:
Principle #1Segmentation

3Ease of repair

If multiple separate guides are used to regulate yarn path, then yarn guidance is achieved, but maintenance costs increase when components are damaged

Engineering Contradiction:
Improvemaintenance costVSAvoidnumber of replaceable components
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The patent combines multiple guide portions into a single integrated guide member, so that when damage occurs, only one component (the entire guide member) needs to be replaced rather than multiple separate guides. This merging reduces the number of replaceable components and simplifies maintenance procedures, thereby reducing maintenance costs

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP2151409B1Multiple yarn guide
Publication Date: 2012.06.06 TMT MACHINERY INC
  • EP2151409B1 patent drawingFigure 1
  • EP2151409B1 patent drawingFigure 2
  • EP2151409B1 patent drawingFigure 3A~3B

AI summary

An object of the present invention is to provide a multiple yarn guide which is easy to assemble owing to a reduced number of components required and which is unlikely to be damaged. A multiple yarn guide 9 includes a plurality of guide pieces 15 arranged in a line. A pair of adjacent guide pieces 15 forms a yarn accommodating space S in which a traveling filament yarn Y is accommodated.