| 摘要 |
<p>PURPOSE:To realize an operation switching mechanism in a magnetic recording and reproducing device with simple constitution and with thin structure. CONSTITUTION:This device is constituted of a planet gear 203 to revolve while engaging with an inside gear 201 formed on a first base board and with an eccentric pin 204 planted to stand in an eccentric position, a sun gear 202 to engage with the planet gear 203 and placed in the center of the inside gear 201 and a cam groove 61 constituted so as to be corresponded with the eccentric pin 204 and to be formed on a second base board 16.</p> |
