| 摘要 |
<p>PURPOSE:To prevent a driving arm from removing from the turning supporting shaft and to delete and miniaturize the tightened parts by positioning one edge of the energizing member at the concave part of the turning supporting shaft of the driving arm when a cassette holder is at a second position. CONSTITUTION:While the cassette loading is completed, a driving arm 18 is turned up to the condition in which a guide pin 5 enters a recess part 20a of a guide groove 20. Then, the pin 5 is spring-energized by an energizing member 21 provided at the driving arm 18. One edge of the energizing member 21 is hung up at a spring stopper 18b, the arm 18 is not removed from a shaft 19 and as such, other edge is inserted into a concave part 19a provided at the shaft 19. Thus, the energizing member 21 plays the same role as the E ring, the member can be deleted and the miniaturization is performed.</p> |
