| 摘要 |
<p>PURPOSE:To simplify a constitution by urging two members by means of a torsion coil spring in opposite directions by a different rotary torque. CONSTITUTION:In a reproduction mode, a switch gear 184 for a fast forward mode and a rewind mode is separated from a driving gear 160 via a moving lever 175 by a profiling lever 199 moved by a cam gear. A torsion coil spring 368 urges the profiling lever 199 and the moving lever 175 in opposite directions. However, a larger rotary torque is generated at the profiling lever 199 because of a distance from a fulcrum, allowing the moving lever 175 to rotate.</p> |
