Finger Cuff Yarn Guide with Transfer Mechanism

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Solution Overview

Problem

Simultaneous multiple colour hand knitting with two or more yarns is challenging due to issues with loop formation on the reverse side and yarn twisting, leading to unwanted yarn strand loops and tangles.

Innovation Solution

A finger cuff with a primary yarn strand guide, a secondary yarn strand guide, and a transfer mechanism that shifts the secondary yarn strand guide between two positions, allowing for controlled handling and interchanging of yarn strands to prevent tangling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If the idle yarn strand is regularly fastened by bringing it into the knitting using the active yarn strand, then the formation of unwanted yarn strand loops on the reverse side is solved, but the knitter must keep track of the twisting of the yarns to prevent them from continuing to twist and forming a tangle

Engineering Contradiction:

Improveunwanted yarn strand loopsVSAvoidtracking yarn twisting

Core Design Contradiction:

Object-generated harmful factorsVSEase of operation

Solution Approach 1:

The patent introduces a yarn management device as an intermediary tool between the knitter and the yarn strands. This device includes guides and mechanisms that automatically manage the idle yarn strand, eliminating the need for the knitter to manually track and control yarn twisting while preventing loop formation on the reverse side.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The yarn management device is designed to automatically handle the idle yarn strand through its structural features, such as guides and positioning mechanisms. The device performs the yarn management function autonomously without requiring the knitter to actively track or control the twisting, making the system self-sufficient in preventing loops and tangles.

Inventive Principle:

Principle #25Self-service

2Ease of operation

If multiple yarn strands are handled manually during knitting, then the knitter has direct control over each yarn, but the complexity of managing multiple yarns increases and leads to tangling

Engineering Contradiction:

Improvedirect control over yarnsVSAvoidmanaging multiple yarns

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent divides the yarn management function into separate components: dedicated guides for each yarn strand, individual positioning mechanisms, and distinct pathways for active and idle yarns. This segmentation allows each yarn to be managed independently through its own guide structure, simplifying the overall control of multiple yarns while maintaining direct knitter control.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The yarn management device serves as an intermediary system that organizes and simplifies the handling of multiple yarn strands. By providing structured guides and positioning mechanisms for each yarn, the device reduces the cognitive and manual complexity of managing multiple yarns simultaneously while preserving the knitter's direct control over the knitting process.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20230183895A1Finger cuff for handling yarn strands

Publication Date: 2023.06.15 THORSEN JON AUDUN

AI summary

The invention relates to a knitting aid for use when knitting with more than one yarn. The finger cuff comprises a primary yarn strand guide, a secondary yarn strand guide, a transfer mechanism configured to at least shift the position of the secondary yarn strand guide in the finger cuff longitudinal direction between a first secondary yarn strand guide position and a second secondary yarn strand guide position.