| 摘要 |
<p>PURPOSE:To move a head substrate without restriction by a cam and to prevent wow and flutter generation due to deformation of a pinch rolled by connecting the cam and the head substrate through a coupling plate, and by making it possible to release the connecting part between the head substrate and the coupling plate. CONSTITUTION:An engaging pin 27 of a slide layer 26 is brought into slide contact with a guide wall 31 which is formed at a substrate 1, and by the energized force of a spring 30, the pin is in contact with the circumference face of a cam member 20. An engaging pin 32, which is studded at the tip part along the guide wall 31 of the slide lever 26, is connected with an engaging part 5a of a head substrate 5. When troubles such as power failure occur, and the mechanism abnormally stops in the condition that the head substrate 5 is at the advancing position, and in the play condition which is in the play mode or the record condition, the head substrate 5 is retreated and the cassette can be removed by rotating the slide lever 26 in the C direction and by releasing the engagement between the engaging pin 32 and the engaging part 5a.</p> |
