| 摘要 |
<p>PURPOSE:To lock a rotation of the reverse direction of a mode cam by making normal and reverse rotations of the mode cam possible, and at the same time, providing a projection in a part of outer form of the mode cam, and connecting to a pin provided on an arm which is in contact with the mode cam. CONSTITUTION:A projection 5a is provided at a position (b) of reverse rotation reproducing mode position b-c of a mode cam 5. In the case where the mode cam 5 is reverse rotated in the direction of the arrow mark B from a state in which the mode cam 5 is at the reproducing mode position and a pin 11 of an arm 10 is in contact with between d-e of the mode cam, and stopped at the position b-c of reverse rotation reproducing mode, if a cam switch 6 is operating normally, the cam stops with the pin 11 of the arm 10 in contact between b-c of the mode cam. However, when the cam switch 6 does not operate normally, the pin 11 of the arm 10 comes into contact with the projection 5a of the mode cam 5, and rotation of the mode cam 5 is locked.</p> |
