Twisted Multi-Fiber Racket Frame Resilience
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Solution Overview
Problem
Existing ball game racket frames made from carbon fiber composites lack a comfortable, softened playing feel due to limited resilience, which can be improved by incorporating twisted multi-fiber rovings to enhance both material stretching and technical elongation.
Innovation Solution
Incorporating at least partially twisted multi-fiber rovings with a high fiber count and specific twist ratios into specific sections of the racket frame, embedded in a cured resin, to create a fiber composite that provides increased resilience and a comfortable playing feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional parallel fiber composites are used in ball game racket frames, then manufacturing simplicity and structural stiffness are achieved, but playing comfort and resilience are limited
Solution Approach 1:
The patent applies parameter changes by transforming the fiber arrangement from parallel to twisted configuration. This fundamental parameter change in the composite material structure creates both material stretching and technical elongation effects, thereby improving resilience and playing comfort while maintaining manufacturing feasibility through established composite processing methods
Solution Approach 2:
The patent utilizes composite materials by combining twisted multi-fiber rovings with resin to create a new composite structure. This composite approach leverages the synergistic effect between the twisted fiber architecture and the resin matrix to achieve enhanced resilience while maintaining the manufacturability of composite materials
2Strength
If multi-fiber rovings are used to increase stiffness, then structural rigidity is improved, but playing feel becomes harsh and less comfortable
Solution Approach 1:
The patent applies parameter changes by transforming the fiber arrangement from parallel to twisted configuration. This fundamental parameter change in the composite material structure creates both material stretching and technical elongation effects, thereby improving resilience and playing comfort while maintaining manufacturing feasibility through established composite processing methods
Solution Approach 2:
The twisted roving configuration introduces dynamic behavior to the otherwise static fiber structure. The twisting creates a mechanism that allows the fibers to dynamically adjust during impact, providing both stiffness for structural integrity and controlled flexibility for comfort, effectively making the material response adaptive to loading conditions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The use of twisted multi-fiber rovings in the ball game racket frame enhances playing characteristics by providing a softened playing feel through increased resilience, achieved by material stretching and technical elongation, resulting in improved playing performance.
Implementation Method 1
it has now turned out that not only stiffness may be improved systematically with the help of multi-fiber rovings, but that another form of resilience of the ball game racket frame, which creates a particularly comfortable, softened playing feel, may be achieved using twisted rovings... not only 'material stretching' is present in sections of ball game racket frames having a twisted multi-fiber roving but also 'technical elongation' takes place since twisting caused by partial untwisting of a roving creates a different kind of resilience
Data Source
AI summary
The present invention relates to a ball game racket frame with a head portion and a handle portion, wherein the ball game racket frame comprises a fiber composite with at least one multi-fiber roving that is at least partially twisted.