| 摘要 |
<p>PURPOSE:To make a product thin with a simple structure by providing two gear trains which mesh a driving gear and are driven interruptedly and interposing a trigger member which receives the output change of the first gear train to state rotation of the second gear train. CONSTITUTION:When the mode of a tape recorder is switched to the play mode, a play cam gear 12 meshes a repeating gear 13 by its tooth part, and a trigger cam part 12b is engaged with one end 10a of a trigger arm 10, and the other end 10c is engaged with a trigger pin 11b, and an FR switching gear 11 starts rotating. Next, an FR slider 6 is slid to the FWD position, and the tape recorder is set to the play mode. Thus, the product is made thin because a sufficient space is not necessary around the intermittent rotating gear 12, and the cost is reduced because only one trigger mechanism is provided for starting the gear 12.</p> |
