| 摘要 |
<p>PURPOSE:To eliminate the need for a driving source exclusive for a mode switching device, to suppress the increase in power consumption, to simplify the constitution and to make the device small and light, by performing fast forwarding and rewinding with a driving source of a motor for capstan drive. CONSTITUTION:A main rotating part of a mode switching device is driven with a capstan driving motor 2. That is, a flywheel 19 is fitted to a capstan 1, and two-stage pulleys 21 and 22 are fitted to a rotating shaft 20 of the motor 2, a one pulley 21 of the two-stage pulley and the flywheel 19 are belted via a flat belt 23, and an another pulley 22 of the two-stage pulley and a pulley 14 of a main rotating part 3 are belted via a V-belt 24. Thus, the driving source exclusive for the mode switching device is unnecessary, the increase in power consumption can be suppressed, the constitution is simplified, and small size and light weight can be achieved.</p> |
