| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation device formed so that four modes of up (slow) up (fast), down (slow) and down (fast) are attained by three momentary switches and a single operation lug in the operation device to perform up-down operation of a frequency of a radio receiver by a lug operated by fingers. SOLUTION: Pressing parts 55 and 56 of a first lever 21 selectively press an adding switch 23 or a subtracting switch 24 by rotational direction of an operation lug 20, and when the operation lug 20 is rotated by a prescribed angle or more, a tip part 64 of a second lever 22 performs fast operation by pressing a mode switch 25. |
