Flat Knitting Bind-Off for Shoulder Drop Piling
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Solution Overview
Problem
During flechage knitting, the increased number of loops held on resting needles makes it difficult to apply a sufficient pull-down force, leading to fabric piling and incomplete knitting, especially when creating shoulder drops and large necklines, as the existing methods struggle to manage the loops effectively at the narrowing knitting width.
Innovation Solution
A method using a flat knitting machine with separate yarn feeders for flechage knitting and bind-off processes, where a predetermined number of loops are bound off after each set of flechage knitting courses, allowing for continuous knitting while preventing fabric piling by gradually releasing loops from the needles as the width narrows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the number of knitting courses with flechage knitting is increased to create large neckline and shoulder drop, then the desired shape is achieved, but the loops held on resting needles increase causing insufficient pull down force and fabric piling
Solution Approach 1:
The patent divides the continuous flechage knitting process into discrete segments by introducing periodic bind-off operations. Specifically, after a predetermined number of flechage knitting courses (e.g., every 2-4 courses), a bind-off operation is performed to release accumulated loops from resting needles. This segmentation prevents the accumulation of excessive loops that would otherwise cause piling and knitting interruptions, while still allowing sufficient courses to be knitted to achieve the desired shoulder drop and neckline shape.
2Shape
If loops are held on resting needles from both ends of knitting width during shoulder portion knitting, then the shoulder drop shape is formed, but the pull down force becomes insufficient and fabric piles up
Solution Approach 1:
The patent implements periodic bind-off operations during the flechage knitting process. Instead of holding all loops on resting needles throughout the entire flechage knitting sequence, the system periodically releases loops by performing bind-off operations at predetermined intervals (e.g., every 2-4 courses). This periodic action maintains sufficient pull-down force on the fabric by preventing excessive loop accumulation, while still allowing the knitting width to gradually narrow and form the desired shoulder drop shape over multiple knitting cycles.
Data Source
AI summary
A knitting method is provided to knit a knitted fabric to the desired shape with sufficient pull down force acting to the knitted fabric without being piled up, when performing the bind off process after flechage knitting.The knitting method is related to knitting a knitted fabric of performing a bind off process after flechage knitting by using a flat knitting having at least a pair of front and back needle beds extending in a transverse direction and disposed opposite to each other in a cross direction, at least either of which is capable of being racked in the transverse direction so that loops can be transferred between the front and back needle beds.In knitting of narrowing a knitting width with flechage knitting, knitting a predetermined number of courses with flechage knitting by feeding a yarn from a flechage knitting yarn feeder, and binding off at least one loop held on a knitting needle without forming a stitch at the end of the knitting width by feeding a yarn from a bind off process yarn feeder different from the flechage knitting yarn feeder, and knitting steps are repeated.