| 摘要 |
<p>PURPOSE:To realize the miniaturization of a cassette tape recorder, by carrying out the position control of the head base for actions of cue and review by means of an action switching means including a brake releasing solenoid of the quick forward mode. CONSTITUTION:In the recording mode, a head base 2 is shifted against a spring 4 by the electric conduction to a head base solenoid 3. A brake plate 6 is pressed at the bent part of the base 2 and thus detached from a reel drive disk. In the FF and REW modes, a brake lever 9 is turned by the first solenoid to slide a working plate 11 against a working plate spring 12 and a brake spring 5. Thus a release arm 7 engaged with a slit 111 of the plate 11 via a coupling pin 17b is turned to press the plate 6. In the cure and review modes, the first solenoid works after a shift of the base 2 by the electric conduction of the solenoid 3. Thus the arm 7 turns to be positioned under a projected part 22 of the base 2. Then the base 2 is kept at the cure and review positions when the electric conduction is cut to the solenoid 3.</p> |
