| 摘要 |
A roll for rotating a movable contact of a rotary switch, and a method of mounting a switch are provided. The roll includes a first slot going along the diameter of the roll and open from the top of the roll for receiving the movable contact for contacting with a stationary contact of the rotary switch, and a second slot arranged perpendicular to the first slot for receiving teeth of an upper roll to be mounted together with the roll. |
