| 摘要 |
<p>PURPOSE:To control the position and meshing state or the like of a magnetic head, a pinch roller, a reel gear and an idler gear or the like corresponding to each mode with one gear. CONSTITUTION:A ring shaped mode gear 200 is provided with a slit group 230 for rotary angle detection and various changeover cams, that is, a head changeover cam 240, reverse pinch changeover cam 250, normal pinch changeover cam 260, an idler changeover cam 270, a reverse play gear changeover cam 280 and a normal play gear changeover cam 290. The respective cams 240-290 displace the cam face to the inside or the outside in the radial direction corresponding to the position of normal play P1, rewinding P2, fast feed P3, reverse play P4 and release P7 to guide pins 301, 401 and 622 or the like.</p> |
