| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ball practice device wherein a force reception ball truly shows a force reception state approximate to a free ball and wherein three-dimensional information or data are acquired. <P>SOLUTION: This ball practice device includes a fixed unit 10, a first rotary unit 30, a second rotary unit 50, and a driven unit 70. The first rotary unit 30 is installed to the fixed unit 10 such that a swing can be performed. The second rotary unit 50 has: a first connection part 51 connected to the first rotary unit 30; and a second connection part 52 moving in a state that the position of the second connection part 52 is shifted relatively to the first connection part 51. The driven unit 70 is connected to the second rotary unit 50 such that the swing can be performed, and has the force reception ball 90. The force reception ball 90 operates by external force, and a three-dimensional position of the force reception ball 90 can be converted in relation to the fixed unit 10. A distance and a direction of the simulated force reception ball 90 can be estimated by a sensing unit of the force reception ball 90 and a data processing module. <P>COPYRIGHT: (C)2012,JPO&INPIT |
