SCREEN BASEBALL SYSTEM INCLUDING SCREEN SHUTTER
First Claim
Patent Images
1. A screen baseball system comprising:
- an image unit;
a pitching machine that shoots a baseball;
a screen that plays an image projected from the image unit and has a screen hole through which a baseball shot from the pitching machine passes;
a shooting signal device that applies a baseball shooting signal to the pitching machine through a control unit; and
a screen shutter that is provided between the pitching machine and the screen, comprises a safety screen that closes the screen hole, and is operated in conjunction with the baseball shooting signal applied from the shooting signal device;
wherein the image unit projects a first warning image onto the screen when the control unit fails to detect shooting of the baseball after applying the baseball shooting signal to the pitching machine, and projects a second warning image different from the first warning image onto the screen when the control unit detects that the screen shutter is in the opened state.
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Abstract
The present invention provides a screen baseball system including a pitching machine that shoots a baseball, a screen having a screen hole through which the baseball shot from the pitching machine passes, and a screen shutter that is provided between the pitching machine and the screen and comprises a safety screen that closes the screen hole. The present invention can fundamentally prevent a safety accident that may occur during a screen baseball game. Even when a user does not recognize or neglects a warning image, the safety accident is prevented.
18 Citations
8 Claims
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1. A screen baseball system comprising:
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an image unit; a pitching machine that shoots a baseball; a screen that plays an image projected from the image unit and has a screen hole through which a baseball shot from the pitching machine passes; a shooting signal device that applies a baseball shooting signal to the pitching machine through a control unit; and a screen shutter that is provided between the pitching machine and the screen, comprises a safety screen that closes the screen hole, and is operated in conjunction with the baseball shooting signal applied from the shooting signal device; wherein the image unit projects a first warning image onto the screen when the control unit fails to detect shooting of the baseball after applying the baseball shooting signal to the pitching machine, and projects a second warning image different from the first warning image onto the screen when the control unit detects that the screen shutter is in the opened state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification