| 摘要 |
<p>PURPOSE:To simplify a mechanism and to accelerate operating speed by operating an idler incorporating a torque limiter for reproduction only flatly separately from the idler for search to be engaged with a reel base. CONSTITUTION:At the time of performing search at high speed, a motor shaft gear 18 fixed on a motor shaft is engaged with the shaft, and also, the idler 18 operated in such a way that it can be turned around the shaft is engaged with the reel bases 4 and 15, then, the reel bases 4 and 15 are driven. At the time of performing standard reproduction, the idlers 19 and 20 for reproduction only separately from the idler 18 perform turning operation, and engage with the motor shaft gear 17 and the reel bases 4 and 15, which transmits power to the torque of a motor, however, the idlers 19 and 20 are provided with slip mechanisms, thereby, no torque exceeding a prescribed level is transmitted. At the time of performing review where a pinch roller 13 is pressed to a capstan 12 and a tape is fed, the slippage of the idlers 19 and 20 for reproduction only become back torque. Also, when the idlers 19 and 20 for reproduction only are operated, no engagement between the idler 18 for fast search and the reel base is performed. In such a way, it is possible to simplify the mechanism and to accelerate the operating speed.</p> |
