| 摘要 |
PURPOSE:To make constitution simple and permit cue operation, etc. by constituting the driving part which performs mode operations of a capstan gear and mode change-over gears and sliding a head base forward and backward. CONSTITUTION:A magnetic head 9 is fixed to a head base 7 and is slided forward and backward by a dumping plate 8. FD, FR trigger gears 21, 22 mesh with a capstan gear 15b, and FD, FR cam gears 23, 24 mesh with these. When a lever 18 is operated by the play signal from the reset state that a stopper 26 is held detained to trigger levers 18, 20, the gears 21, 23 revolve and in the place of a notched part 21a, they are strongly pulled by a spring SP3, then a cam 23a forces a cam block 8a upward, thereby allowing the head 9 to abut on the tape and a cam 25 to be detained by the lever 18. When the lever 20 is operated in this play state, the cam 24a forces a base 7 downward by the operation similar to the above, thereby weakening the press-contact force of the head 9 and permitting cue operation, etc. Thereby, the constitution is made simple, and the cue operation etc. are made possible. |
