Automated Racquet String Weaving System
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Solution Overview
Problem
Current methods of sports racquet stringing are labor-intensive, requiring high dexterity and leading to hand fatigue, with a significant barrier to entry for technicians due to the complexity of manual weaving processes.
Innovation Solution
An automatic string weaving system that automates the weaving process using a solid-state mechanical design with minimal components, including an automated string feeder assembly and weave assembly, which eliminates the need for manual manipulation and reduces complexity, allowing for rapid stringing of racquets with various diameters and material properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual weaving is used by technicians, then the racquet can be stringed with traditional methods, but the process is labor-intensive and time-consuming
Solution Approach 1:
The stringing system performs the weaving operation automatically without requiring manual manipulation by the technician. The automated feeder advances strings through the frame holes and the tensioning mechanism applies tension automatically, allowing the system to service itself during the stringing process.
Solution Approach 2:
The patent replaces the manual mechanical weaving process with an automated mechanical system. An automated string feeder with motorized components substitutes for the technician's hands, and a mechanical tensioning system replaces manual tensioning, thereby increasing productivity while reducing operational complexity.
2Extent of automation
If automated weaving systems with complex assemblies are used, then stringing automation is achieved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts only the essential components needed for automation: a simple automated string feeder and a basic tensioning mechanism. Complex assemblies such as multiple pressure pins, robotic manipulators, and guide wires are eliminated, achieving automation with minimal device complexity.
Solution Approach 2:
The automated string feeder is designed to handle multiple string types and configurations through a single device. The tensioning mechanism serves multiple functions including tension application, string advancement, and positioning, thereby reducing the number of separate components needed.
3Productivity
If manual weaving is performed repeatedly, then racquets can be strung, but hand fatigue increases and mistakes occur
Solution Approach 1:
The automated system performs the repetitive weaving and tensioning operations without human intervention, eliminating hand fatigue. The system consistently executes the same weaving pattern and tension levels for each racquet, reducing variability and mistakes while maintaining high throughput.
Data Source
AI summary
An automatic string weaving system for weaving strings for a stringed sports racquet, comprising a weave assembly that the strings for the stringed sports racquet are weaved through; and an automated string feeder assembly to automatically weave the strings for the stringed sports racquet through the weave assembly.