| 摘要 |
PURPOSE:To decrease the number of components and to achieve small size, by linking each arm of a three-way link to an idler plate, a core slide and a memory plate. CONSTITUTION:A three-way link 18 is fitted to a shaft 20 fixed to a bottom plate of a push-button tuner freely rotatably and has three arms. A guide roller 19 provided at the tip of the 1st arm 18a projectd forward is inserted in a guide hole 17 of an idler plate 13, and a guide roller 24 provided at the tip of the 2nd arm 18b projected toward the sides is inserted in a guide hole 23 of a link plate 22 linked with a core slide 21, and a guide roller 27 at the tip of the 3rd arm 18c projected backward is inserted in a guide hole 26 of a memory plate 25. Through the operation of a tuning knob or a push button, an idler plate 13 or the memory plate 25 is moved to move the core slide 21 via the link 18. |
