| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball shooting instructing machine for a batting machine, adapted to shoot a ball from the batting machine at the moment the heal of the foot of a batter is floated from t machine placed under the foot forwarded at the start of batting for the purpose of improving in timing for hitting a ball on the base. SOLUTION: By the restoring force of a lateral V-shaped spring plate 7 fixed to a base plate 3, a stepping plate 2 mounted on the base plate 3 is returned to the initial position eve if it is stepped down when the heel of the foot of the batter is floated. When the stepping plate is stepped down, a U-shaped resin panel 23 fitted to a fan-shaped resin plate 17 connecting a positive electrode current from a battery box 25 is slightly moved to the lower side to let the positive electrode current flow through an electric path 28, and the tip part of a rolling pate 22 waits under the electric path 28. When the stepping plate 3 starts to return to the initial position, the tip part of the rolling plate 22 enters the electric path 28, and an electric current is allowed to flow through a power supply cord 30 connecting a long power supply cord from the batting machine to instruct shooting of a ball from the batting machine.
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