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improvement in systems of harmony in preparation, in particular to radioricevitori

机译:改善准备中的和声系统,特别是对射电暴龙

摘要

A presettable tuning system in particular for radio receivers, has a drum member 4 with potentiometer tuning members 5, 8, 9 mounted thereon; means for rotating stepwise the drum for putting in circuit each at a time the potentiometer tuning members upon actuation of a control member 10 (Figs. 3 a-c, 4 a,b) and means 23 for the presetting of said potentiometer tuning members for tuning with each of them a desired transmitting station. By pushing a key 10 (Figs. 3 a-c 4 a,b) a rack 10', gear 11 and ratchet 12 steps the drum to the next position. By pressing a knob 23 (Fig. 4 a,b) it moves outwardly and causes a conical gear 23' fastened to the knob 23 to engage with a conical gear 7 on a spindle 9 of a selected potentiometer 5, 8, 9 so that it can be adjusted to select the derived station. During tuning adjustment by knob 23 a lever 22 is urged by a spring 24 to prevent the key 10 from being pressed until the knob 23 is again pressed and returned at its inner position. IMAGE
机译:可预置的调谐系统,特别是用于无线电接收机的可调谐系统,具有鼓部件4,其上装有电位计调谐部件5、8、9;用于在控制部件10致动时使电位计调谐部件每次旋转使滚筒逐步旋转以接通电路的装置(图3ac,4a,b),以及用于预置所述电位计调谐部件以进行调谐的装置23它们中的每一个都是期望的发射站。通过推动键10(图3a-c 4a,b),齿条10',齿轮11和棘轮12将鼓步进到下一个位置。通过按压旋钮23(图4a,b),其向外移动并导致固定在旋钮23上的锥形齿轮23'与选定电位计5、8、9的心轴9上的锥形齿轮7啮合,从而可以进行调整以选择派生电台。在通过旋钮23进行调整调节期间,弹簧24推动杠杆22以防止按键10被按压,直到再次按压旋钮23并使其返回其内部位置为止。 <图像>

著录项

  • 公开/公告号IT1117184B

    专利类型

  • 公开/公告日1986-02-17

    原文格式PDF

  • 申请/专利权人 VOXSON S.P.A.;

    申请/专利号IT19790049126

  • 发明设计人

    申请日1979-05-22

  • 分类号H03J;

  • 国家 IT

  • 入库时间 2022-08-22 07:39:25

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