| 摘要 |
<p>A device for disabling the engagement control of the tuning knob, particularly for a keyboard car radio, allows to disable the tuning knob as soon as one of the keys is preset to a corresponding desired station. The device comprises a rocking member (30) having two arms (32) and (34), which has its fulcrum on slide frame (24) of key (12) and a pin (38) integral with key cap (26) of key (12), which key cap (26) is movable on slide frame (24) between an inserted position and an extracted position. The arrangement is such that, in the inserted position of cap (26) with respect to frame (24) of the key, pin (38) locks arm (34) of rocking member (30), which through its other arm (32) moves a slider (20) which controls disengagement of the clutch, thus relieving the control from the tuning knob when key (12) is in its operative position.</p> |
