SCREEN BASEBALL SYSTEM, HOLE OPENING AND CLOSING APPARATUS AND BALL PITCHING APPARATUS UTILIZED THEREBY, AND METHOD FOR CONTROLLING PITCHING OF SCREEN BASEBALL SYSTEM

摘要

A screen baseball system includes: a screen portion arranged in front of a batter's box and having a pitching hole allowing a pitched ball to pass therethrough; a ball pitching device arranged behind the screen portion to pitch a ball toward the batter's box through the pitching hole; and a hole opening/closing device configured to operate to close the pitching hole when the ball pitching device does not pitch the ball and to open the pitching hole when the ball pitching device pitches the ball.