Patent ID: 8536474
Filing Date: 2013-09-17
Classification: H01H

Abstract:
1. A rotary switch comprising: a rotor including a rotation shaft having a shaft hole formed at a center thereof, a disk part formed integrally and coaxially with the rotation shaft in a middle in a length direction of the rotation shaft and having a first surface and a second surface, and a unitary slide contact piece formed from a single metal plate and held by the disk part, the slide contact piece including a first metal contact section having a predetermined number of first contact regions each having a predetermined angular width in each of one or more first annular zones defined by a plurality of first concentric circles and exposed in the first surface of the disk part and a second metal contact section having a predetermined number of second contact regions each having a predetermined angular width in each of one or more second annular zones defined by a plurality of second concentric circles and exposed in the second surface of the disk part; a first holder having a plurality of first elastic contacts in elastic contact with the one surface of the disk part in the one or more first annular zones; a second holder having a plurality of second elastic contacts in elastic contact with the other surface of the disk part in the one or more second annular zones; and a rotating operation shaft that is inserted through the first holder, the rotation shaft of the rotor, and the second holder, and is configured to rotate the rotor; wherein: the slide contact piece further includes a connecting section; and the first and second contact sections are connected to each other via the connecting section and folded thereabout directly upon each other.