| 摘要 |
PURPOSE:To transfer the extents of traverses of two energized traversing plates colliding against a restraint plate storing a tuning point without error, by transferring them through a rack and a pinion to a variable tuning element where a couple of magnetic cores are projected from and drawn in both terminals of a single coil body. CONSTITUTION:A channel selection member 1 which has 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 crosses the traversing plates at right angles. The extents of traverses of the traversing plates 10 and 10' colliding against the restraint plate 5 are transferred to a variable tuning element 17 through racks 25 and 25', and 26 and 26' and pinion 27 and 27' energized by an elastic plate 16 by link pieces 24 and 24', and 29 and 29', and a rotary link piece 31. In this constitution, the pressing force of the channel selection member 1 gives leftward traversing forces to the traversing plates 10 and 10' during their collisions, which turns the pinions 27 and 27' in the same direction to eliminate the play of the link piece. Consequently, the extents of traverses of the traversing plates 10 and 10' are transferred to the tuning element 17 without error. |
