Twisted Tennis Racket Frame for Quick Hitting Surface Adjustment
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Solution Overview
Problem
Conventional tennis racket frames do not facilitate quick adjustment of the hitting surface, which affects the player's ability to change hitting methods and control the tennis ball effectively.
Innovation Solution
A twisted tennis racket frame design featuring a handle, two supporting arms, and an annular-shaped head with twisted sections that allow for easy rotation, enabling quick changes in hitting surface orientation by creating a continuous curved surface with specific facing directions and angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional tennis racket frame is used, then the structure is simple and easy to manufacture, but the hitting surface cannot be turned quickly and control performance is poor
Solution Approach 1:
The patent applies the dynamics principle by introducing a twisted section in the frame structure that allows the hitting surface to rotate and adjust dynamically. The twisted section enables the frame to change its orientation quickly when the player needs to switch between different hitting methods (forehand, backhand, smash, etc.), transforming a static frame into a dynamic structure that adapts to different operational requirements.
Solution Approach 2:
The patent utilizes curvature by creating a twisted section with a specific geometric configuration. The twisted section has a starting end and terminal end with facing directions that form an included angle between 0 and 180 degrees, creating a curved, three-dimensional structure that enables rotational movement of the hitting surface while maintaining structural integrity.
2Productivity
If the frame structure is made more complex to enable quick turning, then the hitting surface can be adjusted faster, but the manufacturing difficulty increases
Solution Approach 1:
The twisted section creates a dynamic structure that enables quick adjustment of the hitting surface orientation. By designing the twisted section with specific geometric parameters (starting end and terminal end facing directions with an included angle between 0 and 180 degrees), the frame can rotate efficiently to accommodate different hitting methods without requiring complex mechanical components.
Solution Approach 2:
The patent applies parameter changes by optimizing the geometric parameters of the twisted section. The included angle between the facing directions of the starting end and terminal end is controlled within 0 to 180 degrees, and the twisted section is positioned at specific locations on the frame. These parameter optimizations enable quick turning while keeping the manufacturing process relatively simple.
3Reliability
If a twisted section is added to enable quick turning, then control performance improves, but the frame structure becomes more complex
Solution Approach 1:
The twisted section introduces dynamic capability to the frame, allowing it to change orientation quickly during play. This dynamic structure improves ball control performance by enabling the player to adjust the hitting surface angle rapidly when encountering different ball trajectories or needing to switch between forehand, backhand, smash, or other hitting methods.
Solution Approach 2:
The twisted section creates a three-dimensional curved structure that enables rotational movement of the hitting surface. The geometric configuration of the twisted section (with starting end and terminal end at specific facing directions) allows the frame to achieve quick turning while maintaining structural strength and integrity.
Data Source
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AI summary
A twisted tennis racket frame (10) includes a handle (20), two supporting arms (30) having outside surfaces (32) facing reverse directions, and an annular-shaped head (40) provided on an imaginary plane (50) with large and small arc portions (41, 45). The large arc portion (41) has an external arc surface (43), which composes a continuous curved surface (60) with the outside surfaces (32) of the two supporting arms (30). The continuous curved surface (60) has at least one twisted section (70) having a starting end (71) located at the large arc portion (41) and faces toward a first facing direction (81) that is situated on the imaginary plane (50), and a terminal end (72) connected with the handle (20) and faces toward a second facing direction (82). The included angle between the first and second facing directions (81, 82) is larger than 0 degree and not larger than 180 degrees. As a result, the racket performs well in controlling the ball and enables the user to turn the hitting surface quickly.