| 摘要 |
A rotating mechanism which returning a rotating body to an original position. The first detecting mechanism for detecting that the rotating body is in the original position is provided with a first section-to-be-detected affixed to the rotating body and the first detecting section affixed to a supporting body. A second detecting mechanism is provided with a swing member attached to the supporting body, an engaging member that lets the swing member swing, a second section-to-be-detected affixed to the swing member, and a second detecting section affixed to the supporting body. The first detecting section detects the first section-to-be-detected at one or two positions, and the second detecting section switches between ON and OFF at one position. The rotating body is first rotated to the position at which the second detecting section switches between ON and OFF, in order to return the rotating body to its original position. |
