Racket Shock-Absorbing Device for Wrist Injury Prevention
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Solution Overview
Problem
Conventional rackets lack a shock-absorbing device to mitigate the counter shock force transferred to the wrist or arm during ball striking, leading to sports injuries like tennis or golf elbow, and they cannot be adjusted to suit user preferences, limiting their practicality.
Innovation Solution
A racket shock-absorbing device comprising a lower hard seat member with protrusions and a recess, and an upper soft pad member with corresponding buckle slots, positioned between grommets to absorb and dampen shock waves, enhancing operation safety and hold stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the tension of the string is increased to improve striking performance, then the counter shock force is increased, but the shock waves are fully transferred to the wrist or arm causing sports injuries
Solution Approach 1:
The patent introduces a shock-absorbing device as an intermediary component between the string and the racket frame. This device includes a shock-absorbing member positioned between the string and the racket frame, which absorbs and dampens shock waves before they can be transferred to the wrist or arm, thus resolving the contradiction between maintaining high string tension for better striking performance and preventing shock transmission to the user's body
Solution Approach 2:
The patent converts the harmful shock waves generated during striking into beneficial damping effects. The shock-absorbing device utilizes the shock waves to activate its damping mechanism, transforming the harmful mechanical energy into thermal energy through material hysteresis or viscous damping, thereby reducing the shock transmission to the user while maintaining the striking performance
2Reliability
If a shock-absorbing device is added to reduce shock waves, then operation safety is improved, but device complexity increases
Solution Approach 1:
The shock-absorbing device is segmented into distinct functional components: a shock-absorbing member, a fixing member, and a mounting structure. This segmentation allows each component to perform its specific function independently while simplifying the overall assembly process. The shock-absorbing member can be pre-assembled with the fixing member, and then the entire assembly is mounted to the racket frame, reducing the complexity of integration
Solution Approach 2:
The shock-absorbing device is designed with multi-functionality to reduce overall device complexity. The fixing member serves both to secure the shock-absorbing member to the racket frame and to provide a mounting interface for adjustment mechanisms. The shock-absorbing member itself serves both as a shock-damping element and as a structural connector, eliminating the need for separate components and simplifying the overall structure
3Adaptability or versatility
If the racket frame weight is adjusted to meet user requirements, then adaptability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent implements dynamic weight adjustment capability through a modular design where the shock-absorbing device can be repositioned or reconfigured on the racket frame. The fixing member includes mounting holes at multiple positions, allowing the shock-absorbing member to be relocated to different locations on the frame, thereby changing the weight distribution and center of gravity according to user preferences without requiring custom manufacturing for each configuration
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 device effectively reduces sport-related injuries and improves racket handling by absorbing shock waves, increasing operation safety and stability, and allowing weight adjustments to meet user requirements.
Implementation Method 1
the upper soft pad member is provided with a buckle slot arranged correspondingly to the protrusion of the lower hard seat member, thereby solving the shortages existed in the prior art... capable of bearing shock waves of a counter shock force generated while a string being used for striking a ball for achieving a shock-absorbing and damping effect
Data Source
AI summary
A racket shock-absorbing device comprises: a lower hard seat member, disposed at a periphery of a racket frame of a racket and arranged between two single grommets respectively formed with a string hole allowing a string to be disposed, and a top end thereof is disposed with one or more than two protrusions, and the lower hard seat member is formed with a recess; at least one upper soft pad member, disposed on a top end of the lower hard seat member, wherein one or more than two buckle slots is disposed inside the upper soft pad member and arranged correspondingly to the one or more than two protrusions of the lower hard seat member, the string is crossly disposed and downwardly pressed at a top end defined at a center of the upper soft pad member and arranged correspondingly to the recess of the lower hard seat member.