| 摘要 |
PURPOSE:To reduce the number of components of a video tape recorder, to enhance the assembling accuracy and to increase the motor efficiency of the recorder by forming the stationary side of a rotary transformer provided between a rotary side drum and a stationary side drum and the stator yoke of the motor integrally with the same magnetic materials. CONSTITUTION:A rotational shaft 4 is mounted on an upper drum 1, and is rotatably journaled at a lower drum 2. A lower rotary disc 8 is mounted on the shaft 4 to face with a stator coil 6 provided on the drum 2, and a rotary transformer is disposed at the facing part between the drums 1 and 2. In this case, the stationary side of the transformer is formed integrally with the same magnetic material together with the stator yoke 50 mounted with the stator coil 6 of the motor. |
