| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a motor capable of being miniaturized and preventing rise of the temp. by reducing loss in a transmission system of driving power. SOLUTION: The motor is equipped with a stator S, a rotor R supported rotatably against the stator S via bearings so as to be rotated against the stator S by supplying power and a feed member 142 for feeding a magnetic tape T by moving a transmission member 33 in rotating a roller 23 on the side of a tape cartridge, provided on a circumference of the rotor R and brought into direction contact with the feed member 142. Then, the rotor R is provided with ventilation holes 104a and is also provided an air supplying means 105a, so as to accelerate an airflow for passing through these ventilation holes 104a.</p> |
