| 摘要 |
PURPOSE: A racket is provided to easily control the tension of the racket by users. CONSTITUTION: A racket comprises a frame(20), a string(10) connected and fixed to inside the frame, and a support(40). In the frame, holes are formed to be penetrated or fixed by strings. Inside the frame, the strings can be connected and fixed passing to grid direction or cross(+) direction. The support, which expands the frame and supports the same, can be used as a grip. In one side of the support, holes are formed to screw-connect to machine. |
