Tufted Artificial Turf With Segmented Stitching Patterns
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Solution Overview
Problem
Conventional artificial turf exhibits limitations in playability due to uniformity, continuity, and linearity of stitching, which leads to directional infill displacement and reduced performance under footstrike, particularly with studded shoes or cleats, without significant improvements from varying stitching gauge, frequency, or yarn types.
Innovation Solution
A tufted article with a backing and tufts distributed among sequences formed by a single needle of a tufting machine, where each sequence is spaced along axes and does not extend across the entire length or width, allowing for varying tuft sequence lengths, yarn types, and pile heights, and potentially random patterns to enhance playability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional uniform stitching is used across the entire backing, then manufacturing simplicity is maintained, but playability is reduced due to directional infill displacement and unilateral strength
Solution Approach 1:
The tufted article is divided into multiple discrete tuft sequences that do not extend across the entire length or width of the backing. Each tuft sequence is a separate element that can be independently positioned, creating a segmented structure that eliminates continuous linear stitching patterns and reduces directional infill displacement while maintaining manufacturing feasibility.
Solution Approach 2:
The tuft sequences are arranged in a non-uniform, asymmetric pattern where sequences are spaced at different positions along the first and second axes. This asymmetric distribution creates varied stitch paths and eliminates the uniform directional strength of conventional stitching, improving playability by mimicking natural surface variability.
2Reliability
If tuft sequences extend across the entire length or width of the backing, then continuous coverage is achieved, but infill retention is reduced due to directional displacement
Solution Approach 1:
Tuft sequences are segmented into discrete sections that do not span the entire backing dimensions. This segmentation creates multiple shorter stitch paths that collectively provide better infill retention by distributing forces across numerous short segments rather than allowing long continuous displacement paths.
3Adaptability or versatility
If varying tuft sequence lengths and patterns are implemented, then playability is improved by mimicking natural surfaces, but manufacturing complexity increases
Solution Approach 1:
The tufting machine is configured to dynamically adjust tuft sequence parameters including length, spacing, and positioning during the manufacturing process. This dynamic control allows varied patterns to be produced without requiring multiple specialized machines or complex post-processing, maintaining ease of manufacture while achieving natural surface mimicry.
Solution Approach 2:
Manufacturing parameters such as tuft sequence length, spacing between sequences, and positional coordinates are varied within controlled ranges to create playability improvements. These parameter changes are implemented through programmable control of the tufting machine, allowing flexibility without proportionally increasing manufacturing complexity.
Data Source
AI summary
A tufted article can have a length along a first axis and width along a second axis that is perpendicular to the first axis. The tufted article can comprise a backing and a plurality of tufts extending through the backing. The plurality of tufts can be distributed among a plurality of tuft sequences. Each tuft sequence can comprise at least one tuft of the plurality of tufts. The tufts of each tuft sequence can be formed sequentially by a single needle of a tufting machine. Each tuft sequence of the plurality of tuft sequences can be spaced from other tuft sequences of the plurality of tuft sequences along at least one of the first axis or the second axis. In some aspects, no tuft sequence of the plurality of tuft sequences extends across the entire length or the entire width of the backing.