| 摘要 |
<p>PURPOSE:To hold the position of a threading mechanism under a constant state during its separation time by preventing the rotation of a rotary member for operating the threading mechanism with a detaining part of an oscillating detainer body in connection with the rotary member. CONSTITUTION:When a motor is commenced to rotate in the reverse direction based on an eject command from the outside, a threader gear 25 and the oscillating detainer body are reversely rotated, and after a pin 14a of a rack is withdrawn from a groove part 25a of the threader gear 25, the oscillating detainer body is pulled by a spring 27 to oscillate, and a pin 26e is fitted into a recessed part 30 of a chassis F so that the oscillating detainer body and the threader gear 25 are prevented from rotating, and simultaneously a pin 26c is pressed against a detaining piece 31 of the chassis F to regulate the oscillating detainer body in its stopping position. Then, when a tape cassette is set in a threading position, a projecting piece of the oscillating detainer body is pushed by the pin 14a of the rack, so that the pin 26e is withdrawn from the recessed part 30 as the result of oscillation of the oscillating detainer body around its hole 26b, thus making the oscillating detainer body rotatable.</p> |
