| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem wherein such a self-practicing device as to allow a user to efficiently practice tennis in a state similar to the actual play of tennis, in which a ball is alternately hit with an opponent player, did not exist. SOLUTION: The tennis practice device has a repulsive net formed by weaving and stretching strings. The repulsive net is folded or bent and positioned. A protection material such as a protection net is attached to the end edges and the upper edge of the repulsive net. The repulsive net is stretched by each divided frame, and the tennis practice device is structured by combining the divided frames. An elastic material is interposed in the connection between the frames. A frame whose lower part is bent is connected and fixed to a fixed support via the elastic material, and a net with different repulsion is disposed under the bent frame. COPYRIGHT: (C)2007,JPO&INPIT
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