| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in a ball collector 1 including an opening surrounded by a frame 2 that the opening is divided into a ball collecting part 5 and a ball discharge part 6 by a boundary 4 and in which a holding part 3 is provided on an upper face of the opening, in which collected balls fall from the ball discharge part 6 if left as such.SOLUTION: An adsorption characteristic of a magnet to steel is utilized to solve a problem, that is, a plate-like steel 15 is mounted to the upper face of a boundary 4, and a disk-like magnet 14 is mounted to the inner side face of a holding part 3 (using a flexible net). At this time, the magnet 14 is mounted to a corresponding portion so that the magnet can adsorb the steel 15. When the steel 15 is adsorbed to the magnet 14, a space between the holding part 3 and the boundary 4 is narrowed as shown in Fig.5, and a ball 12 cannot move from a ball collecting part 5 to a ball discharge part 6. In this state, the ball collecting part 5 is put on the ball 12 to collect the ball. When discharging the ball, the magnet 14 is pulled upward and separated from the steel 15. A space between the holding part 3 and the boundary 4 is thereby enlarged, and the ball 12 passes therethrough to be movable and is discharged from the ball discharge part 6. This operation is repeated to collect the balls and to discharge the balls. |
