| 摘要 |
PROBLEM TO BE SOLVED: To reduce effort in shooting lever operating. SOLUTION: While a player is in contact with the shooting lever 4, the position of the present rotation angle of the shooting lever 4 is held by a stepping motor 5 so as not to need to grip it with force. When the player releases his or her grip from the shooting lever 4, the shooting lever 4 is automatically reset into the origin position by the stepping motor 4 after a fixed time. COPYRIGHT: (C)2003,JPO
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