| 摘要 |
<p>PURPOSE:To reduce the speed for the rise of a cassette, by providing a lock release charging member which charges a lock lever in such a direction that the falling motion of a lock member placed in a lock lever guiding part is stopped. CONSTITUTION:In case that a cassette holder placed in a cassette-down position is raised to a cassette-up position, a release action lever 17 supported freely turnably by a pin 18 stood on a substrate is brought into contact with a lock release kick pin 14 and is rotated counterclockwise to rotate a lock lever 26 clockwise, and the locking force due to a lock release spring 15 is released, and the lock state of a lock roll 11 fixed to a lock fixing part 26B is released, and the lock roll 11 is moved in the direction of an arrow (a), and thus, the cassette holder rises to the cassette-up position. At this time, since the lock roll 11 is charged through a guide face of the lock lever 26 by the lock release spring 15 in such a direction that the lock roll 11 counters the charging force of a cassette holder spring 27, its speed is reduced.</p> |
