| 摘要 |
PROBLEM TO BE SOLVED: To reduce the fatigue of a shooting operation and to simplify a structure which can be finely adjusted easily. SOLUTION: Slow rotation of an operation body 3 makes a buffer 10 generate a small torque, and fast rotation of the operation body 3 makes the buffer 10 generate a large torque to rotate integrally with a spur gear 6, so as to rotate-operate the operation body while he/she physically feels operation by the torque generated by the buffer depending on the difference between slow and fast operations of the operation body 3 and operation by force against magnetic force acting between a rotor and a stator trying to hold the rotor of a step motor at a step position. When the player rotate-operates the rotation body 3 clockwise with the hand and thereafter puts the hand away from the operation body 3, the step motor 11 is driven with power from a controller, and the spur gear 6 rotates the operation body 3 in the direction of a minimum stopping position by the step motor 11 via the buffer 10. COPYRIGHT: (C)2007,JPO&INPIT
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