| 摘要 |
An operating device is provided having a first button, a second button, and a regulating member. The first button has a tubular hole having a bottom, and is able to be pressed in the direction from the opening edge of said tubular hole to the bottom. The second button freely fits the inside surface of said tubular hole on the outside surface of the second button. The regulating member engages the edge of the first button and regulates the movement of the first button in the pressing direction. The first button is swingable on its edge.
|
