To provide an operation device aiming at reduction of the cost and man-hour of assembly by reducing the number of parts and meshing positions of a gear, capable of improving operation accuracy, capable of aiming at improvement of size-reduction of the device and freedom of design.
An outside knob part 21 at one end of an outside dial 2 is arranged at this side of a base 12, and an output gear 4 at the other end is supported by the base 12 in free rotation by arranging it at back side of the base 12. A switch 7 is arranged at a position more back side of the output gear 4. An inside knob part 31 at one end part of an inside dial 3 is arranged at inside of the outside knob part 21, and the other end part is jointed to the switch 7 so as to enabling the input to the inside knob part 3 to transmit through inside of the outside dial 2.
KAMIOKA MASAMI
KAWAGUCHI YUJI
