| 摘要 |
PURPOSE:To transfer the extents of traverses of two traversing plates, colliding against a restraint plate storing a tuning point, without any error, by transferring them through a couple of energized flexed levers to a variable tuning element where a couple of magnetic cores are protected out of or drawn in from both ends of a single coil body. CONSTITUTION:A channel selection member 1 which has a couple of storage parts 4 and 4' and is provided with a restraint plate 5 storing a tuning point, and two traversing plates 10 and 10' are supported slidably on a frame so that the channel selection member cross the traversing plates at right angles. The extents of traverses of traversing plates 10 and 10' colliding against the restraint plate 5 are transferred to a variable tuning element 17 by link pieces 24 and 24', and 26 and 26', and a turning link piece 28 through flexed levers 14 and 14' energized by an elastic piece 16. In this constitution, the pressing force of the channel selection member 1 gives the traversing plates 10 and 10' leftward traversing forces during their collisions to generate turning forces to the levers 14 and 14' in relative directions, thereby eliminating the play of the link pieces. Consequently, the extents of traverses of the traversing plates 10 and 10' are transferred to the tuning element 17 without error. |
