| 摘要 |
PURPOSE:To improve the workability for the assembling process of a drum assembly for VTR by forming plural parts projecting in the radius direction of a disk and at the outer circumference of said disk which revolves together with a rotary shaft, winding a coil around those projected parts and at the same time fixing head chips to said projected parts. CONSTITUTION:A projected part 34 provided to a rotary transformer base 30 is branched into two projected bars 34a and 34b of a fork shape. A coil 36 is wound around the base parts of these two bars 34a and 34b for pickup use when the coil 36 is set into a circular groove 31. The 1st head chip 38 is fixed over tip parts of both bars 34a and 34b by an adhesive or a mold material. At the same time, the 2nd head chip 39 is fixed over the tip parts of projected parts 35a and 35b by the same kind of adhesive. |
