| 摘要 |
<p>PURPOSE:To enhance significantly the durability of the gear and to make advantageous even for speed reducing by providing a driving gear at the flywheel, making the first step gear linked with the driving gear into the idler and separating the idler in the PLAY, FF and RE condition. CONSTITUTION:At the time of starting the play, to the first step gear 21 geared in the stop mode, the rotation of a driving gear 20 of the flywheel is communicated and the rotation is communicated from the first step gear 21 through a communicating gaear 14 and gears 22 and 23 to a cam gear 1. Accompanying the rotation of the cam gear 1, a cam 2 is also rotated, a cam plate roller 4 to abut with the outer circumference of the cam 2 is pressured from a small diameter part of the cam 2 by the large diameter part and a cam plate 3 is shifted to the right side. On the other hand, a plunger plate 9 is absorbed to the plunger and by the driving means the head player is advanced and locked at the advancing position. At such a time, the cam plate 3 is shifted to the left side by the energizing force of a spring 6 and stopped at the position to be engaged to the engaging part 7 of the plunger plate 9.</p> |
