| 摘要 |
<p>PURPOSE:To remove easily a tape cassette from a magnetic recording/reproducing device, as required, by turning on a signal switch and transmitting a reset signal to a control circuit when a head base comes to a stop position to switch manually a logical control device in the recording/reproducing state into the stop state. CONSTITUTION:A small diameter gear 4b of a releasing dual flat gear 4 in a gear train locking a rotating position of a crank mechanism gear 6 is detached from a large diameter gear 4a so as to be freely turnable, the crank mechanism gear 6 released freely turnably is turned with a deviating force in the arrow B of a tensile coil spring fitted to a link lever 8 and restored to the stop state. Further, the large diameter gear 4a of the flat gear 4 is borne freely turnably to a shaft core section 17 fitted to a shaft hole 16 of a mechanism chassis 15. An inner tooth form 22 in matching with an outer tooth of the gear 4b is provided to a ring hole 18 of the gear 4a, and a shaft hole 18 is provided to the shaft 17. Then, a shaft pin 19 having a flange 20 is slid and inserted freely turnably to the shaft hole 18.</p> |
