| 摘要 |
PURPOSE:To apply the titled tuner to a multi-band application by utilizing a forward state at a channel selection operation between an operating member and a channel selection member so as to operate the operating plate switching a switch for band changeover in a pushbutton tuner constituted so as to attain, for example, preset through the meshing with a main gear and a follower gear. CONSTITUTION:In using a channel selection device A1 as an FM band and channel selection devices A2, A3 as an AM band, a tilt angle alpha of an operating piece 54 of a member 56 corresponding to the channel selection device A1 and a tilt angle beta of an operating piece 54 of the member 56 corresponding to the channel selection devices A2, A3 are made different and a difference is given to a lateral stoke of an operating board 50 obtained by the operating piece 54. Thus, depressing the operating member 1 of the channel selection device, the front end face is activated on the operating piece 54 opposite thereto, the operating plate 50 is moved laterally against a spring 53, one locking piece 55'f is pressed into contact with the side face of the front end of one channel selection member 18' held in the forward moving state, the restoration of the operating plate 50 is blocked and the band changeover is conducted together with the channel selection by connecting the operating plate 50 with a slide switch for band changeover. |
